GOLDMAN SACHS TRUST
485APOS, 1999-01-12
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<PAGE>
 
    
As filed with the Securities and Exchange Commission on
January 12, 1999     


1933 Act Registration No. 33-17619
1940 Act Registration No. 811-5349

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

                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D. C. 20549

                                 ____________


                                   FORM N-1A



                       REGISTRATION STATEMENT UNDER THE
                         SECURITIES ACT OF 1933 ( X )

                      
                  Post-Effective Amendment No. 51 ( X )     


                                    and/or


                       REGISTRATION STATEMENT UNDER THE
                     INVESTMENT COMPANY ACT OF 1940 ( X )

                             
                          Amendment No. 53 ( X )     



                       (Check appropriate box or boxes)
                                  __________



                              GOLDMAN SACHS TRUST

              (Exact name of registrant as specified in charter)



                               4900 Sears Tower
                         Chicago, Illinois 60606-6303
                   (Address of principal executive offices)



                        Registrant's Telephone Number,
                       including Area Code 312-993-4400
                                 ____________


Michael J. Richman, Esq.                        Copies to:
Goldman, Sachs & Co.                            Jeffrey A. Dalke, Esq.
85 Broad Street - 12th Floor                    Drinker Biddle & Reath LLP
New York, New York 10004                        1345 Chestnut Street
                                                Philadelphia, PA 19107
(Name and address of agent for service)
<PAGE>
 
It is proposed that this filing will become effective (check appropriate box)


( )  Immediately upon filing pursuant to paragraph (b)
( )  On (date) pursuant to paragraph (b)
(X)  60 days after filing pursuant to paragraph (a)(1)
( )  On (date) pursuant to paragraph (a)(1)
( )  75 days after filing pursuant to paragraph (a)(2)
( )  On (date) pursuant to paragraph (a)(2) of rule 485.
<PAGE>
 
                              GOLDMAN SACHS TRUST
                      Goldman Sachs Domestic Equity Funds
                      Class A, Class B and Class C Shares

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

                             CROSS REFERENCE SHEET
                           (as required by Rule 481)



PART A                      CAPTION
- ------                      -------

Goldman Sachs Domestic Equity Funds
- -----------------------------------
Goldman Sachs Balanced Fund, Goldman Sachs Growth and Income Fund, Goldman Sachs
CORE U.S. Equity Fund, Goldman Sachs CORE Large Cap Value Fund, Goldman Sachs
CORE Large Cap Growth Fund, Goldman Sachs CORE Small Cap Equity Fund, Goldman
Sachs Cap Growth Fund, Goldman Sachs Mid Cap Equity Fund and Goldman Small Cap
Value Fund.

1. Cover Page               Cover Page
                            
2. Synopsis                 Fund Highlights; Fees and Expenses
                            
3. Condensed Financial      
   Information              Financial Highlights
                            
4. General Description      Cover Page; Fund Highlights;
   of Registrant            Investment Objective and Policies;
                            Description of Securities; Risk Factors; Investment
                            Techniques; Investment Restrictions; Portfolio
                            Turnover; Shares of the Trust;
                            
5. Management of the Fund   Management
                            
6. Capital Stock and        Dividends; Shares of the Trust;
   Other Securities         Taxation;
                            
7. Purchase of Securities   How to Invest; Net Asset Value;
   Being Offered            Services Available to Shareholders; Distribution and
                            Service Plans;
                            
8. Redemption or            How to sell Shares of the Funds;
   Repurchase               Services Available to Shareholders;
                            Distribution and Service Plans;
                            
9. Pending Legal            Not Applicable
   Proceedings
<PAGE>
 
                              GOLDMAN SACHS TRUST
                      Goldman Sachs Domestic Equity Funds
                             Institutional Shares

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

                             CROSS REFERENCE SHEET
                           (as required by Rule 481)


PART A                       CAPTION
- ------                       -------


Goldman Sachs Domestic Equity Funds
- -----------------------------------

Goldman Sachs Balanced Fund, Goldman Sachs Growth and Income Fund, Goldman Sachs
CORE U.S. Equity Fund, Goldman Sachs CORE Large Cap Value Fund, Goldman Sachs
CORE Large Cap Growth Fund, Goldman Sachs CORE Small Cap Equity Fund, Goldman
Sachs Cap Growth Fund, Goldman Sachs Mid Cap Equity Fund and Goldman Small Cap
Value Fund.


1. Cover Page                Cover Page
                             
2. Synopsis                  Fund Highlights; Fees and Expenses
                             
3. Condensed Financial       
   Information               Financial Highlights
                             
4. General Description       Cover Page; Fund Highlights;
   of Registrant             Investment Objective and Policies;
                             Description of Securities; Risk Factors; Investment
                             Techniques; Investment Restrictions; Portfolio
                             Turnover; Shares of the Trust;
                             
5. Management of the Fund    Management
                             
6. Capital Stock and         Dividends; Shares of the Trust;
   Other Securities          Taxation;
                             
7. Purchase of Securities    Purchase of Institutional Shares; Net
   Being Offered             Asset Value;
                             
8. Redemption or             
   Repurchase                Redemption of Institutional Shares;
                             
                             
9. Pending Legal             Not Applicable
   Proceedings
<PAGE>
 
                              GOLDMAN SACHS TRUST
                      Goldman Sachs Domestic Equity Funds
                                Service Shares

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

                             CROSS REFERENCE SHEET
                           (as required by Rule 481)



PART A                      CAPTION
- ------                      -------

Goldman Sachs Domestic Equity Funds
- -----------------------------------

Goldman Sachs Balanced Fund, Goldman Sachs Growth and Income Fund, Goldman Sachs
CORE U.S. Equity Fund, Goldman Sachs CORE Large Cap Value Fund, Goldman Sachs
CORE Large Cap Growth Fund, Goldman Sachs CORE Small Cap Equity Fund, Goldman
Sachs Cap Growth Fund, Goldman Sachs Mid Cap Equity Fund and Goldman Small Cap
Value Fund.


1. Cover Page               Cover Page
                            
2. Synopsis                 Fund Highlights; Fees and Expenses
                            
3. Condensed Financial      
   Information              Financial Highlights
                            
4. General Description      Cover Page; Fund Highlights;
   of Registrant            Investment Objective and Policies;
                            Description of Securities; Risk Factors; Investment
                            Techniques; Investment Restrictions; Portfolio
                            Turnover; Shares of the Trust;
                            
5. Management of the Fund   Management
                            
6. Capital Stock and        Dividends; Shares of the Trust;
   Other Securities         Taxation;
                            
7. Purchase of Securities   Purchase of Service Shares; Net
   Being Offered            Asset Value; Additional Services
                            
8. Redemption or            Redemption of Service Shares;
   Repurchase               Additional Services
                            
9. Pending Legal            Not Applicable
   Proceedings
<PAGE>

                              GOLDMAN SACHS TRUST
                      Goldman Sachs Domestic Equity Funds
                   Class A, Class B, Class C, Service Shares
                           and Institutional Shares

 
PART B                      CAPTION
- ------                      -------

10.  Cover Page             Cover Page

11.  Table of Contents      Table of Contents

12.  General Information    Introduction
     and History

13.  Investment Objectives  Investment Policies;
     and Policies           Investment Restrictions

14.  Management of the      Management
     Registrant

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

16.  Investment Advisory    Management
     and Other Services

17.  Brokerage Allocation   Portfolio Transactions
     and Other Securities   and Brokerage

18.  Capital Stock and      Shares of the Trust
     Other Securities

19.  Purchase, Redemption   Management; Net Asset Value;
     and Pricing of         Other Information; Other Information
     Securities Being       Regarding Maximum Sales Charge, Purchases, 
     Offered                Redemptions, Ex-changes and Dividends.

20.  Tax Status             Taxation

21.  Underwriters           Management-Distributor

22.  Calculation of         Performance Information
     Performance Data

23.  Financial Statements   Financial Statements


Part C
- ------
Information required to be included in Part C is set forth under the appropriate
Item, so numbered in Part C to this Registration Statement.
<PAGE>
 
                              GOLDMAN SACHS TRUST
 
                      GOLDMAN SACHS DOMESTIC EQUITY FUNDS
 
                       CLASS A, CLASS B, CLASS C SHARES
 
                               ----------------
 
                     SUPPLEMENT DATED JANUARY 20, 1999 TO
                  PROSPECTUS ORIGINALLY DATED JANUARY 8, 1999
                      AND HEREBY REDATED JANUARY 20, 1999
 
                    GOLDMAN SACHS CORE LARGE CAP VALUE FUND
   PRIOR PERFORMANCE OF SIMILARLY ADVISED ACCOUNTS OF THE INVESTMENT ADVISER
 
<TABLE>
<CAPTION>
                         CLASS A SHARE CLASS A SHARE CLASS B SHARE CLASS B SHARE CLASS C SHARE CLASS C SHARE
                            EXPENSE       EXPENSE       EXPENSE       EXPENSE       EXPENSE       EXPENSE
                           COMPOSITE     COMPOSITE     COMPOSITE     COMPOSITE     COMPOSITE     COMPOSITE   RUSSELL
                          (EXCLUDING    (INCLUDING    (EXCLUDING    (INCLUDING    (EXCLUDING    (INCLUDING     1000
                             SALES         SALES         SALES         SALES         SALES         SALES      VALUE
                           CHARGES)      CHARGES)      CHARGES)      CHARGES)      CHARGES)      CHARGES)     INDEX
                         ------------- ------------- ------------- ------------- ------------- ------------- -------
<S>                      <C>           <C>           <C>           <C>           <C>           <C>           <C>
1998....................         %             %             %             %             %             %          %
1997....................         %             %             %             %             %             %          %
1996....................         %             %             %             %             %             %          %
1995....................         %             %             %             %             %             %          %
1994....................         %             %             %             %             %             %          %
1993....................         %             %             %             %             %             %          %
8/1/92-12/31/92.........         %             %             %             %             %             %          %
</TABLE>
 
<TABLE>
<CAPTION>
                                               AVERAGE ANNUAL TOTAL RETURN
                                          --------------------------------------
                                           ONE YEAR  3 YEARS  5 YEARS    SINCE
                                            ENDED     ENDED    ENDED   INCEPTION
                                          12/31/1998 12/31/98 12/31/98 (8/1/92)
                                          ---------- -------- -------- ---------
<S>                                       <C>        <C>      <C>      <C>
Class A Share Expense Composite (exclud-
 ing sales charge)......................         %         %        %        %
Class A Share Expense Composite (includ-
 ing sales charge)......................         %         %        %        %
Class B Share Expense Composite (exclud-
 ing sales charge)......................         %         %        %        %
Class B Share Expense Composite (includ-
 ing sales charge)......................         %         %        %        %
Class C Share Expense Composite (exclud-
 ing sales charge)......................         %         %        %        %
Class C Share Expense Composite (includ-
 ing sales charge)......................         %         %        %        %
Russell 1000 Value Index................         %         %        %        %
</TABLE>
 
  The preceding table sets forth the Investment Adviser's composite
performance data relating to the historical performance of all discretionary
private accounts managed by the Investment Adviser that have investment
objectives, policies, and strategies substantially similar to the CORE Large
Cap Value Fund. The information is provided to illustrate the past performance
of the Investment Adviser in managing substantially similar accounts as
measured against the Russell 1000 Value Index and does not represent the
performance of the CORE Large Cap Value Fund. Investors should not consider
this performance data as a substitute for the performance of the CORE Large
Cap Value Fund nor should investors consider this data as an indication of
future performance of the CORE Large Cap Value Fund or of the Investment
Adviser. The Russell 1000 Value Index is unmanaged and investors cannot invest
directly in the index.
 
  In accordance with the standards of the Association for Investment
Management and Research ("AIMR"), the Investment Adviser's composite
performance data was calculated on a time-weighted and asset-weighted total
return basis which includes realized and unrealized gains and losses plus
<PAGE>
 
income. Total return performance of the CORE Large Cap Value Fund will be
calculated in accordance with the regulations of the SEC. The SEC standardized
average annual total return is neither time-weighted nor asset-weighted and is
determined for specified periods by computing the annual percentage change in
the value of an initial amount that is invested in a share class of the Fund
at the maximum public offering price. Investors should be aware that the
differences in methodology between AIMR and SEC requirements could result in
different performance data for identical time periods.
 
  The actual expenses of the private accounts included in the composite were
lower than the estimated expenses of the Fund. Accordingly, the performance
record of the composite has been adjusted downward based on the estimated
expenses of the A, B, and C Classes of the CORE Large Cap Value Fund during
its first year of operations. Performance also reflects the deduction of the
maximum 5.5% front-end sales charge with respect to Class A Shares and the
maximum contingent deferred sales charge with respect to Class B (5%) and
Class C Shares (1%). All returns presented reflect the reinvestment of
dividends and other earnings. The private accounts are not subject to the same
diversification requirements, specific tax restrictions and investment
limitations imposed on the CORE Large Cap Value Fund by the Investment Company
Act of 1940 and Subchapter M of the Internal Revenue Code. Consequently, the
performance results of the Investment Adviser's composite could have been
adversely affected if the private accounts had been regulated as investment
companies under the federal securities laws.
<PAGE>
 
- --------------------------------------------------------------------------------
 
PROSPECTUS
 
January 8, 1999       GOLDMAN SACHS DOMESTIC EQUITY FUNDS
                            CLASS A, B AND C SHARES
 
GOLDMAN SACHS BALANCED FUND
  Seeks long-term capital growth and current income through investments in eq-
  uity and fixed-income securities.
 
GOLDMAN SACHS GROWTH AND INCOME FUND
  Seeks long-term growth of capital and growth of income through investments
  in equity securities that are considered to have favorable prospects for
  capital appreciation and/or dividend paying ability.
 
GOLDMAN SACHS CORE LARGE CAP VALUE FUND
  Seeks long-term growth of capital and dividend income through a broadly di-
  versified portfolio of equity securities of large cap U.S. issuers that are
  selling at low to modest valuations relative to general market measures and
  that are expected to have favorable prospects for capital appreciation
  and/or dividend-paying ability.
 
GOLDMAN SACHS CORE U.S. EQUITY FUND
  Seeks long-term growth of capital and dividend income through a broadly di-
  versified portfolio of large cap and blue chip equity securities represent-
  ing all major sectors of the U.S. economy.
 
GOLDMAN SACHS CORE LARGE CAP GROWTH FUND
  Seeks long-term growth of capital through a broadly diversified portfolio of
  equity securities of large cap U.S. issuers that are expected to have better
  prospects for earnings growth than the growth rate of the general domestic
  economy. Dividend income is a secondary consideration.
GOLDMAN SACHS CORE SMALL CAP EQUITY FUND
  Seeks long-term growth of capital through a broadly diversified portfolio of
  equity securities of U.S. issuers which are included in the Russell 2000 In-
  dex at the time of investment.
 
GOLDMAN SACHS CAPITAL GROWTH FUND
  Seeks long-term growth of capital through diversified investments in equity
  securities of companies that are considered to have long-term capital appre-
  ciation potential.
 
GOLDMAN SACHS MID CAP EQUITY FUND
  Seeks long-term capital appreciation primarily through investments in equity
  securities of companies with public stock market capitalizations within the
  range of the market capitalization of companies constituting the Russell
  Midcap Index at the time of investment (currentlybetween $400 million and
  $16 billion).
 
GOLDMAN SACHS SMALL CAP VALUE FUND
  Seeks long-term capital growth through investments in equity securities of
  companies with public stock market capitalizations of $1 billion or less at
  the time of investment.
 
  Goldman Sachs Asset Management ("GSAM"), New York, New York, a separate
operating division of Goldman, Sachs & Co. ("Goldman Sachs"), serves as
investment adviser to the Balanced, Growth and Income, CORE Large Cap Value,
CORE Large Cap Growth, CORE Small Cap Equity, Mid Cap Equity and Small Cap
Value (formerly "Small Cap Equity") Funds. Goldman Sachs Funds Management, L.P.
("GSFM"), New York, New York, an affiliate of Goldman Sachs, serves as
investment adviser to the CORE U.S. Equity (formerly the "Select Equity Fund")
and Capital Growth Funds. GSAM and GSFM are each referred to in this Prospectus
as the "Investment Adviser." Goldman Sachs serves as each Fund's distributor
and transfer agent.
 
SHARES OF THE FUNDS ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR
ENDORSED BY, ANY BANK OR OTHER INSURED DEPOSITORY INSTITUTION, AND ARE NOT
INSURED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD
OR ANY OTHER GOVERNMENT AGENCY. AN INVESTMENT IN A FUND INVOLVES INVESTMENT
RISKS, INCLUDING POSSIBLE LOSS OF PRINCIPAL.
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS
A CRIMINAL OFFENSE.
 
 
                                                        (continued on next page)
<PAGE>
 
(cover continued)
 
  This Prospectus provides information about Goldman Sachs Trust (the "Trust")
and the Funds that a prospective investor should understand before investing.
This Prospectus should be retained for future reference. A Statement of
Additional Information (the "Additional Statement"), dated January 8, 1999,
containing further information about the Trust and the Funds which may be of
interest to investors, has been filed with the Securities and Exchange
Commission ("SEC"), is incorporated herein by reference in its entirety, and
may be obtained without charge from Goldman Sachs by calling the telephone
number, or writing to one of the addresses, listed on the back cover of this
Prospectus. The SEC maintains a Web site (http://www.sec.gov) that contains
the Additional Statement and other information regarding the Trust.
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                     PAGE
                                     ----
<S>                                  <C>
Fund Highlights....................    3
Fees and Expenses..................    8
Financial Highlights...............   13
Investment Objectives and Policies.   21
Description of Securities..........   26
Investment Techniques..............   32
Risk Factors.......................   36
Investment Restrictions............   37
Portfolio Turnover.................   38
Management.........................   38
Expenses...........................   44
Reports to Shareholders............   44
</TABLE>
<TABLE>
<CAPTION>
                                     PAGE
                                     ----
<S>                                  <C>
How to Invest......................   44
Services Available to Shareholders.   50
Distribution and Service Plans.....   53
How to Sell Shares of the Funds....   54
Dividends..........................   56
Net Asset Value....................   56
Performance Information............   57
Shares of the Trust................   58
Taxation...........................   58
Additional Information.............   59
Appendix A ........................  A-1
Account Application
</TABLE>
 
                                       2
<PAGE>
 
 
                                FUND HIGHLIGHTS
 
   The following is intended to highlight certain information and is
 qualified in its entirety by the more detailed information contained in
 this Prospectus.
 
  WHAT IS THE GOLDMAN SACHS TRUST?
 
   The Goldman Sachs Trust is an open-end management investment company
 that offers its shares ("Shares") in several investment funds (commonly
 known as mutual funds (the "Funds")). Each Fund pools the monies of
 investors by selling its Shares to the public and investing these monies
 in a portfolio of securities designed to achieve that Fund's stated
 investment objectives.
 
  WHAT ARE THE INVESTMENT OBJECTIVES AND POLICIES OF THE FUNDS?
 
   Each Fund has distinct investment objectives and policies. There can be
 no assurance that a Fund's objectives will be achieved. Each Fund is a
 "diversified open-end management company" as defined in the Investment
 Company Act of 1940, as amended (the "Act"). For a further description of
 each Fund's investment objectives and policies, see "Investment
 Objectives and Policies," "Description of Securities" and "Investment
 Techniques."
<TABLE> 
- ----------------------------------------------------------------------------------------
 FUND NAME   INVESTMENT OBJECTIVES      INVESTMENT CRITERIA            BENCHMARK
 ---------   ---------------------      -------------------            --------- 
<S>          <C>                    <C>                            <C>                                                         
                                                                            
 BALANCED    Long-term capital      Between 45% and 65% of total   Lehman Aggregate Bond
 FUND        growth and current     assets in equity securities    Index and the
             income.                and at least 25% in fixed-     Standard & Poor's
                                    income senior securities.      Index of 500 Common
                                                                   Stocks (the "S&P 500
                                                                   Index")
- ----------------------------------------------------------------------------------------
 GROWTH AND  Long-term growth of    At least 65% of total assets   S&P 500 Index
 INCOME FUND capital and growth of  in equity securities that the
             income.                Investment Adviser considers
                                    to have favorable prospects
                                    for capital appreciation
                                    and/or dividend-paying
                                    ability.
- ----------------------------------------------------------------------------------------
 CORE LARGE  Long-term growth of    At least 90% of total assets   Russell 1000 Value
 CAP VALUE   capital and dividend   in equity securities of U.S.   Index
 FUND        income.                issuers, including certain
                                    foreign issuers traded in the
                                    U.S. The Fund seeks to achieve
                                    its objective through a
                                    broadly diversified portfolio
                                    of equity securities of large
                                    cap U.S. issuers that are
                                    selling at low to modest
                                    valuations relative to general
                                    market measures such as
                                    earnings, book value and other
                                    fundamental accounting
                                    measures, and that are
                                    expected to have favorable
                                    prospects for capital
                                    appreciation and/or dividend-
                                    paying ability. The Fund's
                                    investments are selected using
                                    both a variety of quantitative
                                    techniques and fundamental
                                    research in seeking to
                                    maximize the Fund's expected
                                    return, while maintaining
                                    risk, style, capitalization
                                    and industry characteristics
                                    similar to the Russell 1000
                                    Value Index.
</TABLE>
 
 
                                                                     (continued)
 
                                       3
<PAGE>
<TABLE> 
- --------------------------------------------------------------------------------------
 FUND NAME    INVESTMENT OBJECTIVES      INVESTMENT CRITERIA         BENCHMARK
 ---------    ---------------------      -------------------         --------- 
<S>          <C>                    <C>                            <C>                                                         
                                                                            
 CORE U.S.   Long-term growth of    At least 90% of total assets   S&P 500 Index
 EQUITY FUND capital and dividend   in equity securities of U.S.
             income.                issuers, including certain
                                    foreign issuers traded in the
                                    U.S. The Fund seeks to achieve
                                    its objective through a
                                    broadly diversified portfolio
                                    of large cap and blue chip
                                    equity securities representing
                                    all major sectors of the U.S.
                                    economy. The Fund's
                                    investments are selected using
                                    both  a variety of
                                    quantitative techniques and
                                    fundamental research in
                                    seeking to maximize the Fund's
                                    expected return, while
                                    maintaining risk, style,
                                    capitalization and
                                    industry characteristics
                                    similar to the S&P 500 Index.
- --------------------------------------------------------------------------------------
 CORE LARGE  Long-term growth of    At least 90% of total assets   Russell 1000 Growth
 CAP GROWTH  capital.               in equity securities of U.S.   Index
 FUND        Dividend income is a   issuers, including certain
             secondary              foreign issuers traded in the
             consideration.         U.S. The Fund seeks to achieve
                                    its objective through a
                                    broadly diversified portfolio
                                    of equity securities of large
                                    cap U.S. issuers that are
                                    expected to have better
                                    prospects for earnings growth
                                    than the growth rate of the
                                    general domestic economy. The
                                    Fund's investments are
                                    selected using both a variety
                                    of quantitative techniques and
                                    fundamental research in
                                    seeking to maximize the Fund's
                                    expected return, while
                                    maintaining risk, style,
                                    capitalization and industry
                                    characteristics similar to the
                                    Russell 1000 Growth Index.
- --------------------------------------------------------------------------------------
 CORE SMALL  Long-term growth of    At least 90% of total assets   Russell 2000 Index
 CAP EQUITY  capital.               in equity securities of U.S.
 FUND                               issuers, including certain
                                    foreign issuers traded in the
                                    U.S. The Fund seeks to achieve
                                    its objective through a
                                    broadly diversified portfolio
                                    of equity securities of U.S.
                                    issuers which are included in
                                    the Russell 2000 Index at the
                                    time of investment. The Fund's
                                    investments are selected using
                                    both a variety of quantitative
                                    techniques and fundamental
                                    research in seeking to
                                    maximize the Fund's expected
                                    return, while maintaining
                                    risk, style, capitalization
                                    and industry characteristics
                                    similar to the Russell 2000
                                    Index.
- --------------------------------------------------------------------------------------
 CAPITAL     Long-term capital      At least 90% of total assets   S&P 500 Index
 GROWTH FUND growth.                in a diversified portfolio of
                                    equity securities. The
                                    Investment Adviser considers
                                    long-term capital appreciation
                                    potential in selecting
                                    investments.
</TABLE>
                                                                     (continued)
 
                                       4
<PAGE>
 
<TABLE> 
- -----------------------------------------------------------------------------------------
 FUND NAME      INVESTMENT OBJECTIVES     INVESTMENT CRITERIA            BENCHMARK
 ---------      ---------------------     -------------------            ---------
<S>             <C>                   <C>                            <C>                                                         
                                                                            
 MID CAP        Long-term capital     At least 65% of total assets   Russell Midcap Index
 EQUITY FUND    appreciation.         in equity securities of
                                      companies with public stock
                                      market capitalizations within
                                      the range of the market
                                      capitalization of companies
                                      constituting the Russell
                                      Midcap Index at the time of
                                      investment (currently between
                                      $400 million and $16 billion)
                                      ("Mid-Cap Companies").
- -----------------------------------------------------------------------------------------
 SMALL CAP      Long-term capital     At least 65% of total assets   Russell 2000
 VALUE FUND     growth.               in equity securities of
                                      companies with public stock
                                      market capitalizations of $1
                                      billion or less at the time of
                                      investment.
</TABLE>
 
 WHAT ARE THE RISK FACTORS AND SPECIAL CHARACTERISTICS THAT I SHOULD
CONSIDER BEFORE INVESTING?
 
  Each Fund's Share price will fluctuate with market, economic and, to the
extent applicable, foreign exchange conditions, so that an investment in
any of the Funds may be worth more or less when redeemed than when
purchased. None of the Funds should be relied upon as a complete investment
program. There can be no assurance that a Fund's investment objectives will
be achieved. See "Risk Factors."
 
  Risks of Investing in Small Capitalization Companies. To the extent that
a Fund invests in the securities of small market capitalization companies,
the Fund may be exposed to a higher degree of risk and price volatility.
Securities of such issuers may lack sufficient market liquidity to enable a
Fund to effect sales at an advantageous time or without a substantial drop
in price.
 
  Foreign Risks. Investments in securities of foreign issuers and
currencies involve risks that are different form those associated with
investments in domestic securities. The risks associated with foreign
investments and currencies include changes in relative currency exchange
rates, political and economic developments, the imposition of exchange
controls, confiscation and other governmental restrictions. Generally,
there is less availability of data on foreign companies and securities
markets as well as less regulation of foreign stock exchanges, brokers and
issuers. A Fund's investments in emerging markets and countries ("Emerging
Countries") involves greater risks than investments in the developed
countries of Western Europe, the United States, Canada, Australia, New
Zealand and Japan.
 
  Other. A Fund's use of certain investment techniques, including derivatives,
forward contracts, options and futures, will subject the Fund to greater risk
than funds that do not employ such techniques.
 
 WHO MANAGES THE FUNDS?
 
  Goldman Sachs Asset Management serves as Investment Adviser to the Balanced,
Growth and Income, CORE Large Cap Value, CORE Large Cap Growth, CORE Small Cap
Equity, Mid Cap Equity and Small Cap Value Funds. Goldman Sachs Funds
Management, L.P. serves as Investment Adviser to the CORE U.S. Equity and
Capital Growth Funds. As of November 20, 1998, the Investment Adviser, together
with its affiliates, acted as investment adviser or distributor for assets in
excess of $188 billion.
 
                                       5
<PAGE>
 
 
 WHO DISTRIBUTES THE FUNDS' SHARES?
 
  Goldman Sachs acts as distributor of each Fund's Shares (the "Distributor").
 
 WHAT IS THE MINIMUM INVESTMENT?
 
<TABLE>
<CAPTION>
                                                                 MINIMUM
                                                           --------------------
                                                           INITIAL
                                                           PURCHASE ADDITIONAL
TYPE OF PURCHASE                                            AMOUNT  INVESTMENTS
- ----------------                                           -------- -----------
<S>                                                        <C>      <C>
Regular Purchases.........................................  $1,000      $50
Tax-Sheltered Retirement Plans (excluding SIMPLE IRAs and
 Education IRAs) and UGMA/UTMA Purchases..................  $  250      $50
SIMPLE IRAs and Education IRAs............................  $   50      $50
Automatic Investment Plan.................................  $   50      $50
403(b) Plans..............................................  $  200      $50
</TABLE>
 
  For further information, see "How to Invest--How to Buy Shares of the Funds"
on page 45.
 
 HOW DO I PURCHASE SHARES?
 
 
  You may purchase Shares of the Funds through Goldman Sachs and certain
investment dealers, including members of the National Association of Securities
Dealers, Inc. (the "NASD") and certain other financial service firms that have
agreements with Goldman Sachs relating to the sale of Shares ("Authorized
Dealers"). See "How to Invest" on page 44.
 
 WHAT ARE MY PURCHASE ALTERNATIVES?
 
 
  The Funds offer three classes of Shares through this Prospectus. These Shares
may be purchased, at the investor's choice, at a price equal to their next
determined net asset value ("NAV") (i) plus an initial sales charge imposed at
the time of purchase ("Class A Shares"); (ii) with a contingent deferred sales
charge ("CDSC") imposed on redemptions within six years of purchase ("Class B
Shares"); or (iii) without any initial sales charge or CDSC, as long as Shares
are held for one year or more ("Class C Shares"). Direct purchases of $1
million or more of Class A Shares will be sold without an initial sales charge
and may be subject to a CDSC at the time of certain redemptions.
 
<TABLE>
<CAPTION>
                            MAXIMUM INITIAL                   MAXIMUM CONTINGENT
   ALL FUNDS                 SALES CHARGE                   DEFERRED SALES CHARGE
   ---------                ---------------                 ---------------------
   <S>                      <C>             <C>
   Class A.................      5.5%                            (See above)
   Class B.................       N/A                 5% declining to 0% after six years
   Class C.................       N/A       1% if Shares are redeemed within 12 months of purchase
</TABLE>
 
  Over time, the CDSC and distribution and service fees attributable to Class B
or Class C Shares will exceed the initial sales charge and the distribution and
service fees attributable to Class A Shares. Class B Shares convert to Class A
Shares, which are subject to lower distribution and service fees, eight years
after initial purchase. Class C Shares, which are subject to the same
distribution and service fees as Class B Shares, do not convert to Class A
Shares and are subject to the higher distribution and service fees
indefinitely. See "How to Invest--Alternative Purchase Arrangements" on page
44.
 
                                       6
<PAGE>
 
 
 HOW DO I SELL MY SHARES?
 
 
  You may redeem Shares upon request on any Business Day, as defined under
"Additional Information," at the NAV next determined after receipt of such
request in proper form, subject to any applicable CDSC. See "How to Sell Shares
of the Funds."
 
 HOW DO I RECEIVE DIVIDENDS AND DISTRIBUTIONS?
 
 
<TABLE>
<CAPTION>
                                       INVESTMENT INCOME DIVIDENDS CAPITAL GAINS
FUND                                        DECLARED AND PAID      DISTRIBUTIONS
- ----                                   --------------------------- -------------
<S>                                    <C>                         <C>
Balanced..............................          Quarterly            Annually
Growth and Income.....................          Quarterly            Annually
CORE Large Cap Value..................          Quarterly            Annually
CORE U.S. Equity......................           Annually            Annually
CORE Large Cap Growth.................           Annually            Annually
CORE Small Cap Equity.................           Annually            Annually
Capital Growth........................           Annually            Annually
Mid Cap Equity........................           Annually            Annually
Small Cap Value.......................           Annually            Annually
</TABLE>
 
  You may receive dividends and distributions in additional Shares of the same
class of the Fund in which you have invested or you may elect to receive them
in cash, Shares of the same class of other mutual funds sponsored by Goldman
Sachs (the "Goldman Sachs Funds") or ILA Service Units of the Prime Obligations
Portfolio or the Tax-Exempt Diversified Portfolio, if you hold Class A Shares
of a Fund, or ILA Class B or Class C Units of the Prime Obligations Portfolio,
if you hold Class B or Class C Shares of a Fund (the "ILA Portfolios"). For
further information concerning dividends and distributions, see "Dividends."
 
                                       7
<PAGE>
 
 
                               FEES AND EXPENSES
 
<TABLE>
<CAPTION>
                                                               GROWTH
                                                                 AND                             CORE
                             BALANCED                          INCOME                          LARGE CAP
                               FUND                             FUND                          VALUE FUND
                      -----------------------------    -----------------------------    -----------------------------
                      CLASS A    CLASS B    CLASS C    CLASS A    CLASS B    CLASS C    CLASS A    CLASS B    CLASS C
                      -------    -------    -------    -------    -------    -------    -------    -------    -------
<S>                   <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
SHAREHOLDER
 TRANSACTION
 EXPENSES:
 Maximum Sales
  Charge Imposed
  on Purchases........  5.5%/1/   none       none        5.5%/1/   none       none        5.5%/1/   none       none
 Maximum Sales
  Charge Imposed
  on Reinvested
  Dividends........... none       none       none       none       none       none       none       none       none
 Maximum Deferred
  Sales Charge........ none/1/     5.0%/2/    1.0%/3/   none/1/     5.0%/2/    1.0%/3/   none/1/     5.0%/2/    1.0%/3/
 Redemption
  Fees/4/............. none       none       none       none       none       none       none       none       none
 Exchange
  Fees/4/............. none       none       none       none       none       none       none       none       none
ANNUAL FUND
 OPERATING
 EXPENSES:
 (as a percentage
 of average daily
 net assets)/5/
 Management Fees
  (after waivers
  and
  reimbursements)/6/.. 0.65%      0.65%      0.65%      0.70%      0.70%      0.70%      0.60%      0.60%      0.60%
 Distribution and
  Service Fees........ 0.25%      1.00%      1.00%      0.25%      1.00%      1.00%      0.25%      1.00%      1.00%
 Other Expenses
  (after waivers
  and
  reimbursements)/7/.. 0.20%      0.20%      0.20%      0.24%      0.24%      0.24%      0.19%      0.19%      0.19%
                       ----       ----       ----       ----       ----       ----       ----       ----       ----
TOTAL FUND
 OPERATING
 EXPENSES (AFTER
 WAIVERS AND
 REIMBURSEMENTS)/8/... 1.10%      1.85%      1.85%      1.19%      1.94%      1.94%      1.04%      1.79%      1.79%
                       ====       ====       ====       ====       ====       ====       ====       ====       ====
<CAPTION>
                             CORE U.S.                          CORE                             CORE
                              EQUITY                          LARGE CAP                        SMALL CAP
                               FUND                          GROWTH FUND                      EQUITY FUND
                      -------------------------------- -------------------------------- --------------------------------
                      CLASS A    CLASS B    CLASS C    CLASS A    CLASS B    CLASS C    CLASS A    CLASS B    CLASS C
                      ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ----------
<S>                   <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
SHAREHOLDER
 TRANSACTION
 EXPENSES:
 Maximum Sales
  Charge Imposed
  on Purchases........  5.5%/1/   none       none        5.5%/1/   none       none        5.5%/1/   none       none
 Maximum Sales
  Charge Imposed
  on Reinvested
  Dividends........... none       none       none       none       none       none       none       none       none
 Maximum Deferred
  Sales Charge........ none/1/     5.0%/2/    1.0%/3/   none/1/     5.0%/2/    1.0%/3/   none/1/     5.0%/2/    1.0%/3/
 Redemption
  Fees/4/............. none       none       none       none       none       none       none       none       none
 Exchange
  Fees/4/............. none       none       none       none       none       none       none       none       none
ANNUAL FUND
 OPERATING
 EXPENSES:
 (as a percentage
 of average daily
 net assets)/5/
 Management Fees
  (after waivers
  and
  reimbursements)/6/.. 0.70%      0.70%      0.70%      0.60%      0.60%      0.60%      0.85%      0.85%      0.85%
 Distribution and
  Service Fees........ 0.25%      1.00%      1.00%      0.25%      1.00%      1.00%      0.25%      1.00%      1.00%
 Other Expenses
  (after waivers
  and
  reimbursements)/7/.. 0.19%      0.19%      0.19%      0.19%      0.19%      0.19%      0.23%      0.23%      0.23%
                      ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ----------
TOTAL FUND
 OPERATING
 EXPENSES (AFTER
 WAIVERS AND
 REIMBURSEMENTS)/8/... 1.14%      1.89%      1.89%      1.04%      1.79%      1.79%      1.33%      2.08%      2.08%
                      ========== ========== ========== ========== ========== ========== ========== ========== ==========
</TABLE>
 
                                       8
<PAGE>
 
 
                         FEES AND EXPENSES (CONTINUED)
 
<TABLE>
<CAPTION>
                                                                                                     SMALL
                                  CAPITAL                          MID CAP                            CAP
                                  GROWTH                           EQUITY                            VALUE
                                   FUND                              FUND                            FUND
                          -----------------------------    -----------------------------    -----------------------------
                          CLASS A    CLASS B    CLASS C    CLASS A    CLASS B    CLASS C    CLASS A    CLASS B    CLASS C
                          -------    -------    -------    -------    -------    -------    -------    -------    -------
<S>                       <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
SHAREHOLDER TRANSACTION
EXPENSES:
 Maximum Sales Charge
 Imposed on Purchases....   5.5%/1/   none       none        5.5%/1/   none       none        5.5%/1/   none       none
 Maximum Sales Charge
 Imposed on Reinvested
 Dividends...............  none       none       none       none       none       none       none       none       none
 Maximum Deferred Sales
 Charge..................  none/1/     5.0%/2/    1.0%/3/   none/1/     5.0%/2/    1.0%/3/   none/1/     5.0%/2/    1.0%/3/
 Redemption Fees/4/......  none       none       none       none       none       none       none       none       none
 Exchange Fees/4/........  none       none       none       none       none       none       none       none       none
ANNUAL FUND OPERATING
EXPENSES: (as a
percentage of average
daily net assets)/5/
 Management Fees (after
 waivers and
 reimbursements).........  1.00%      1.00%      1.00%      0.75%      0.75%      0.75%      1.00%      1.00%      1.00%
 Distribution and Service
 Fees....................  0.25%      1.00%      1.00%      0.25%      1.00%      1.00%      0.25%      1.00%      1.00%
 Other Expenses (after
 waivers and
 reimbursements)/7/......  0.19%      0.19%      0.19%      0.29%      0.29%      0.29%      0.25%      0.25%      0.25%
                           ----       ----       ----       ----       ----       ----       ----       ----       ----
TOTAL FUND OPERATING
EXPENSES (AFTER WAIVERS
AND REIMBURSEMENTS)/8/...  1.44%      2.19%      2.19%      1.29%      2.04%      2.04%      1.50%      2.25%      2.25%
                           ====       ====       ====       ====       ====       ====       ====       ====       ====
</TABLE>
- ----
/1/ As a percentage of the offering price. No sales charge is imposed on
    purchases of Class A Shares by certain classes of investors. A CDSC of
    1.00% is imposed on certain redemptions (within 18 months of purchase) of
    Class A Shares sold without an initial sales charge as part of an
    investment of $1 million or more. See "How to Invest--Offering Price--
    Class A Shares."
/2/ A CDSC is imposed upon Shares redeemed within six years of purchase at a
    rate of 5% in the first year, declining to 1% in the sixth year, and
    eliminated thereafter. See "How to Invest--Offering Price--Class B
    Shares."
/3/ A CDSC of 1.00% is imposed on Shares redeemed within 12 months of
    purchase. See "How to Invest--Offering Price--Class C Shares."
/4/ A transaction fee of $7.50 may be charged for redemption proceeds paid by
    wire. In addition to free reinvestments of dividends and distributions in
    Shares of other Goldman Sachs Funds or units of the ILA Portfolios and
    free automatic exchanges pursuant to the Automatic Exchange Program, six
    free exchanges are permitted in each twelve month period. A fee of $12.50
    may be charged for each subsequent exchange during such period. See "How
    to Invest--Exchange Privilege."
/5/ The Funds' annual operating expenses have been restated to reflect fees
    and expenses in effect as of September 1, 1998, except for the CORE Large
    Cap Value Fund which are based on estimated amounts for the current fiscal
    year.
/6/ The Investment Adviser has voluntarily agreed not to impose a portion of
    the management fee on the CORE U.S. Equity and CORE Large Cap Growth Funds
    equal to 0.05% and 0.15%, respectively. Without such limitations,
    management fees would be 0.75% of each Fund's average daily net assets.
/7/ The Investment Adviser has voluntarily agreed to reduce or limit certain
    other expenses (excluding management, distribution and service fees,
    transfer agency fees (equal to 0.19% of the average daily net assets of
    each Fund's Class A, B and C Shares), taxes, interest and brokerage fees
    and litigation, indemnification and other extraordinary expenses) for each
    Fund to the extent such expenses exceed the following percentages of
    average daily net assets:
 
<TABLE>
<CAPTION>
                                                                         OTHER
                                                                        EXPENSES
                                                                        --------
      <S>                                                               <C>
      Balanced.........................................................  0.01%
      Growth and Income................................................  0.05%
      CORE Large Cap Value.............................................  0.00%
      CORE U.S. Equity.................................................  0.00%
      CORE Large Cap Growth............................................  0.00%
      CORE Small Cap Equity............................................  0.04%
      Capital Growth...................................................  0.00%
      Mid Cap Equity...................................................  0.10%
      Small Cap Value..................................................  0.06%
</TABLE>
 
                                       9
<PAGE>
 
/8/ Without the limitations described above, "Other Expenses" and "Total
    Operating Expenses" of the Funds would be as set forth below:
 
<TABLE>
<CAPTION>
                                                                         TOTAL
                                                               OTHER   OPERATING
                                                              EXPENSES EXPENSES
                                                              -------- ---------
      <S>                                                     <C>      <C>
      Balanced
        Class A..............................................  0.43%     1.33%
        Class B..............................................  0.43%     2.08%
        Class C..............................................  0.43%     2.08%
      Growth and Income
        Class A..............................................  0.27%     1.22%
        Class B..............................................  0.27%     1.97%
        Class C..............................................  0.27%     1.97%
      CORE Large Cap Value
        Class A..............................................  0.71%     1.56%
        Class B..............................................  0.71%     2.31%
        Class C..............................................  0.71%     2.31%
      CORE U.S. Equity
        Class A..............................................  0.27%     1.27%
        Class B..............................................  0.27%     2.02%
        Class C..............................................  0.27%     2.02%
      CORE Large Cap Growth
        Class A..............................................  0.37%     1.37%
        Class B..............................................  0.37%     2.12%
        Class C..............................................  0.37%     2.12%
      CORE Small Cap Equity
        Class A..............................................  0.63%     1.73%
        Class B..............................................  0.63%     2.48%
        Class C..............................................  0.63%     2.48%
      Capital Growth
        Class A..............................................  0.25%     1.50%
        Class B..............................................  0.25%     2.25%
        Class C..............................................  0.25%     2.25%
      Mid Cap Equity
        Class A..............................................  0.31%     1.31%
        Class B..............................................  0.31%     2.06%
        Class C..............................................  0.31%     2.06%
      Small Cap Value
        Class A..............................................  0.28%     1.53%
        Class B..............................................  0.28%     2.28%
        Class C..............................................  0.28%     2.28%
</TABLE>
 
EXAMPLE
 
  You would pay the following expenses on a hypothetical $1,000 investment
(including the maximum sales charge) assuming (i) a 5% annual return; and (ii)
redemption at the end of each time period.
 
<TABLE>
<CAPTION>
    FUND                                         1 YEAR 3 YEARS 5 YEARS 10 YEARS
    ----                                         ------ ------- ------- --------
<S>                                              <C>    <C>     <C>     <C>
Balanced Fund
 Class A Shares................................   $66     $88    $112     $182
 Class B Shares
 --Assuming complete redemption at end of peri-
  od...........................................    66      86     119      197
 --Assuming no redemption......................    19      58     100      197
 Class C Shares
 --Assuming complete redemption at end of peri-
  od...........................................    28      58     100      217
 --Assuming no redemption......................    19      58     100      217
</TABLE>
 
                                       10
<PAGE>
 
<TABLE>
<CAPTION>
    FUND                                         1 YEAR 3 YEARS 5 YEARS 10 YEARS
    ----                                         ------ ------- ------- --------
<S>                                              <C>    <C>     <C>     <C>
Growth and Income Fund
 Class A Shares................................   $66     $91    $117     $191
 Class B Shares
 --Assuming complete redemption at end of
  period.......................................    67      89     124      207
 --Assuming no redemption......................    20      61     105      207
 Class C Shares
 --Assuming complete redemption at end of
  period.......................................    29      61     105      226
 --Assuming no redemption......................    20      61     105      226
CORE Large Cap Value
 Class A Shares................................    65      86     N/A      N/A
 Class B Shares
 --Assuming complete redemption at end of
  period.......................................    65      84     N/A      N/A
 --Assuming no redemption......................    18      56     N/A      N/A
 Class C Shares
 --Assuming complete redemption at end of peri-
  od...........................................    27      56     N/A      N/A
 --Assuming no redemption......................    18      56     N/A      N/A
CORE U.S. Equity Fund
 Class A Shares................................    66      89     114      186
 Class B Shares
 --Assuming complete redemption at end of
  period.......................................    66      87     121      201
 --Assuming no redemption......................    19      59     102      201
 Class C Shares
 --Assuming complete redemption at end of
  period.......................................    28      59     102      221
 --Assuming no redemption......................    19      59     102      221
CORE Large Cap Growth Fund
 Class A Shares................................    65      86     109      175
 Class B Shares
 --Assuming complete redemption at end of
  period.......................................    65      84     116      191
 --Assuming no redemption......................    18      56      97      191
 Class C Shares
 --Assuming complete redemption at end of
  period.......................................    27      56      97      211
 --Assuming no redemption......................    18      56      97      211
CORE Small Cap Equity Fund
 Class A Shares................................    68      95     124      206
 Class B Shares
 --Assuming complete redemption at end of
  period.......................................    68      93     131      222
 --Assuming no redemption......................    21      65     112      222
 Class C Shares
 --Assuming complete redemption at end of
  period.......................................    30      65     112      241
 --Assuming no redemption......................    21      65     112      241
Capital Growth Fund
 Class A Shares................................    69      98     129      218
 Class B Shares
 --Assuming complete redemption at end of
  period.......................................    69      97     136      233
 --Assuming no redemption......................    22      69     117      233
 Class C Shares
 --Assuming complete redemption at end of
  period.......................................    31      69     117      252
 --Assuming no redemption......................    22      69     117      252
Mid Cap Equity Fund
 Class A Shares................................    68      92     129      218
 Class B Shares
 --Assuming complete redemption at end of
  period.......................................    68      92     129      218
 --Assuming no redemption......................    21      64     110      218
 Class C Shares
 --Assuming complete redemption at end of
  period.......................................    30      64     110      237
 --Assuming no redemption......................    21      64     110      237
Small Cap Value Fund
 Class A Shares................................    69     100     132      224
 Class B Shares
 --Assuming complete redemption at end of
  period.......................................    70      98     139      240
 --Assuming no redemption......................    23      70     120      240
 Class C Shares
 --Assuming complete redemption at end of
  period.......................................    32      70     120      258
 --Assuming no redemption......................    23      70     120      258
</TABLE>
 
 
                                       11
<PAGE>
 
  The hypothetical example assumes that a CDSC will not apply to redemptions
of Class A Shares within the first 18 months. Class B Shares convert to Class
A Shares eight years after purchase; therefore, Class A expenses are used in
the hypothetical example after year eight.
 
  The Investment Adviser and Goldman Sachs may modify or discontinue any of
the limitations set forth above in the future at their discretion. The
information set forth in the foregoing table and hypothetical example relates
only to Class A, B and C Shares. Each Fund also offers Institutional and
Service Shares, which are subject to different fees and expenses (which affect
performance), have different minimum investment requirements and are entitled
to different services than Class A, Class B and Class C Shares. Information
regarding Institutional and Service Shares may be obtained from your sales
representative or from Goldman Sachs by calling the number on the back cover
page of this Prospectus. Because of the Distribution and Service Plans, long-
term shareholders may pay more than the economic equivalent of the maximum
front-end sales charges permitted by the NASD's rules regarding investment
companies.
 
  In addition to the compensation itemized above, certain institutions that
sell Fund Shares and/or their salespersons may receive other compensation in
connection with the sale and distribution of Class A, Class B and Class C
Shares of the Funds or for services to their customers' accounts and/or the
Funds. For additional information regarding such compensation, see
"Management" and "Services Available to Shareholders" in this Prospectus and
"Other Information Regarding Purchases, Redemptions, Exchanges and Dividends"
in the Additional Statement.
 
  The purpose of the foregoing table is to assist investors in understanding
the various fees and expenses of a Fund that an investor will bear directly or
indirectly. The information on the fees and expenses included in the table and
hypothetical example above are based on each Fund's fees and expenses (actual
or estimated) and should not be considered as representative of past or future
expenses. Actual fees and expenses may be greater or less than those
indicated. Moreover, while the example assumes a 5% annual return, a Fund's
actual performance will vary and may result in an actual return greater or
less than 5%. See "Management--Investment Advisers."
 
                                      12
<PAGE>
 
 
                             FINANCIAL HIGHLIGHTS
 
 
         SELECTED DATA FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD
 
  The following data for the years and periods ended on or before January 31,
1998 have been audited by Arthur Andersen LLP, independent public accountants,
as indicated in their report incorporated by reference into the Additional
Statement from the Annual Report to shareholders of the Funds for the year
ended January 31, 1998 (the "Annual Report"). This information should be read
in conjunction with the financial statements and related notes incorporated by
reference and attached to the Additional Statement. The Annual Report also
contains performance information and is available upon request and without
charge by calling the telephone number or writing to one of the addresses on
the back cover of this Prospectus. Information for the period ended July 31,
1998 has not been audited. During the periods shown, the Trust did not offer
Shares of the CORE Large Cap Value Fund. Accordingly, there are no financial
highlights for this Fund.
 
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                  INCOME FROM
                           INVESTMENT OPERATIONS(E)            DISTRIBUTIONS TO SHAREHOLDERS
                           ------------------------- -------------------------------------------------
                                       NET REALIZED
                                      AND UNREALIZED
                                      GAIN (LOSS) ON
                                       INVESTMENT,                                       IN EXCESS OF
                                       FUTURES AND                           FROM NET    NET REALIZED
                 NET ASSET               FOREIGN        FROM    IN EXCESS  REALIZED GAIN    GAIN ON
                  VALUE,      NET        CURRENCY       NET       OF NET   ON INVESTMENT  INVESTMENT
                 BEGINNING INVESTMENT    RELATED     INVESTMENT INVESTMENT  AND FUTURES   AND FUTURES
                 OF PERIOD   INCOME    TRANSACTIONS    INCOME     INCOME   TRANSACTIONS  TRANSACTIONS
                 --------- ---------- -------------- ---------- ---------- ------------- -------------
                                                                                         BALANCED FUND
- ------------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>            <C>        <C>        <C>           <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $20.29     $0.29        $(0.21)      $(0.28)    $ --         $ --          $ --
1998--Class B
Shares..........   20.20      0.20         (0.20)       (0.21)      --           --            --
1998--Class C
Shares..........   20.17      0.20         (0.21)       (0.21)      --           --            --
1998--Institu-
tional Shares...   20.29      0.32         (0.21)       (0.31)      --           --            --
1998--Service
Shares..........   20.28      0.26         (0.21)       (0.25)      --           --            --
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   18.78      0.57          2.66        (0.56)      --         (1.16)          --
1998--Class B
Shares..........   18.73      0.50          2.57        (0.42)    (0.02)       (1.16)          --
1998--Class C
Shares(b).......   21.10      0.25          0.24        (0.22)    (0.04)       (0.64)        (0.52)
1998--Institu-
tional
Shares(b).......   21.18      0.26          0.32        (0.23)    (0.08)       (0.45)        (0.71)
1998--Service
Shares(b).......   21.18      0.22          0.32        (0.22)    (0.06)       (0.72)        (0.44)
- ------------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   17.31      0.66          2.47        (0.66)      --         (1.00)          --
1997--Class B
Shares(b).......   17.46      0.42          2.34        (0.42)    (0.07)       (1.00)          --
- ------------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   14.22      0.51          3.43        (0.50)      --         (0.35)          --
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1995--Class A
Shares(b).......   14.18      0.10          0.02        (0.08)      --           --            --
<CAPTION>
                                                                                                         RATIOS ASSUMING
                                                                                                       NO VOLUNTARY WAIVER
                                                                                                            OF FEES OR
                                                                                                       EXPENSE LIMITATIONS
                                                                                                     -------------------------
                                                                                         RATIO OF                  RATIO OF
                     NET                                           NET      RATIO OF        NET                       NET
                  INCREASE   NET ASSET                          ASSETS AT      NET      INVESTMENT    RATIO OF    INVESTMENT
                 (DECREASE)   VALUE,               PORTFOLIO      END OF   EXPENSES TO   INCOME TO    EXPENSES   INCOME (LOSS)
                   IN NET     END OF     TOTAL     TURNOVER       PERIOD   AVERAGE NET  AVERAGE NET  TO AVERAGE   TO AVERAGE
                 ASSET VALUE  PERIOD   RETURN(A)    RATE(F)     (IN 000'S)   ASSETS       ASSETS     NET ASSETS   NET ASSETS
                 ----------- --------- ----------- ------------ ---------- ------------ ------------ ----------- -------------
- ------------------------------------------------------------------------------------------------------------------------------
<S>              <C>         <C>       <C>         <C>          <C>        <C>          <C>          <C>         <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........   $(0.20)    $20.09      0.34%(d)   69.31%(d)   $191,408     1.00%(c)     2.86%(c)     1.45%(c)      2.41%(c)
1998--Class B
Shares..........    (0.21)     19.99     (0.04)(d)   69.31(d)      38,923     1.75(c)      2.11(c)      1.95(c)       1.91(c)
1998--Class C
Shares..........    (0.22)     19.95     (0.08)(d)   69.31(d)      15,693     1.75(c)      2.12(c)      1.95(c)       1.92(c)
1998--Institu-
tional Shares...    (0.20)     20.09      0.45(d)    69.31(d)       8,646     0.75(c)      3.11(c)      0.95(c)       2.91(c)
1998--Service
Shares..........    (0.20)     20.08      0.26(d)    69.31(d)         447     1.25(c)      2.51(c)      1.45(c)       2.31(c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........     1.51      20.29     17.54      190.43        163,636     1.00         2.94         1.57          2.37
1998--Class B
Shares..........     1.47      20.20     16.71      190.43         23,639     1.76         2.14         2.07          1.83
1998--Class C
Shares(b).......    (0.93)     20.17      2.49(d)   190.43          8,850     1.77(c)      2.13(c)      2.08(c)       1.82(c)
1998--Institu-
tional
Shares(b).......    (0.89)     20.29      2.93(d)   190.43          8,367     0.76(c)      3.13(c)      1.07(c)       2.82(c)
1998--Service
Shares(b).......    (0.90)     20.28      2.66(d)   190.43             16     1.26(c)      2.58(c)      1.57(c)       2.27(c)
- ------------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........     1.47      18.78     18.59      208.11         81,410     1.00         3.76         1.77          2.99
1997--Class B
Shares(b).......     1.27      18.73     16.22(d)   208.11          2,110     1.75(c)      2.59(c)      2.27(c)       2.07(c)
- ------------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........     3.09      17.31     28.10      197.10         50,928     1.00         3.65         1.90          2.75
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1995--Class A
Shares(b).......     0.04      14.22      0.87(d)    14.71          7,510     1.00(c)      3.39(c)      8.29(c)      (3.90)(c)
</TABLE>
- -------------------------------------------------------------------------------
(a) Assumes investment at the NAV at the beginning of the period,
    reinvestments of all dividends and distributions, a complete redemption of
    the investment at the NAV at the end of the period and no sales or
    redemption charges. Total return would be reduced if a sales or redemption
    charge were taken into account.
(b) Class A and Class B Share activity commenced on October 12, 1994 and May
    1, 1996, respectively. Class C, Institutional and Service Share activity
    commenced on August 15, 1997.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
(f) Includes the effects of mortgage dollar roll transactions.
 
                                       13
<PAGE>
 
<TABLE>
<CAPTION>
                                  INCOME FROM
                           INVESTMENT OPERATIONS(E)            DISTRIBUTIONS TO SHAREHOLDERS
                           -------------------------- ------------------------------------------------
                                            NET                                           IN EXCESS OF
                                        REALIZED AND                          FROM NET    NET REALIZED
                 NET ASSET    NET        UNREALIZED      FROM    IN EXCESS  REALIZED GAIN   GAIN ON
                  VALUE,   INVESTMENT  GAIN (LOSS) ON    NET       OF NET   ON INVESTMENT  INVESTMENT  ADDITIONAL
                 BEGINNING   INCOME     INVESTMENTS   INVESTMENT INVESTMENT  AND FUTURES  AND FUTURES   PAID-IN
                 OF PERIOD   (LOSS)     AND FUTURES     INCOME     INCOME   TRANSACTIONS  TRANSACTIONS  CAPITAL
                 --------- ----------  -------------- ---------- ---------- ------------- ------------ ----------
- -----------------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>         <C>            <C>        <C>        <C>           <C>          <C>
FOR THE SIX MONTH ENDED JULY 31 (UNAUDITED),
- --------------------------------------------
1998--Class A
Shares..........  $25.93     $0.09         $(0.41)      $(0.08)    $  --        $ --         $  --       $ --
1998--Class B
Shares..........   25.73       --           (0.41)         --         --          --            --         --
1998--Class C
Shares..........   25.70      0.01          (0.43)       (0.01)       --          --            --         --
1998--Institu-
tional Shares...   25.95      0.13          (0.40)       (0.13)       --          --            --         --
1998--Service
Shares..........   25.92      0.07          (0.39)       (0.07)       --          --            --         --
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   23.18      0.11           5.27        (0.11)       --        (2.52)          --         --
1998--Class B
Shares..........   23.10      0.04           5.14          --       (0.03)      (2.45)        (0.07)       --
1998--Class C
Shares(b).......   28.20     (0.01)          0.06          --       (0.03)      (1.42)        (1.10)       --
1998--
Institutional
Shares..........   23.19      0.27           5.23        (0.22)       --        (0.24)        (2.28)       --
1998--Service
Shares..........   23.17      0.14           5.23        (0.06)     (0.04)      (2.52)          --         --
- -----------------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   19.98      0.35           5.18        (0.35)     (0.01)      (1.97)          --         --
1997--Class B
Shares(b).......   20.82      0.17           4.31        (0.17)     (0.06)      (1.97)          --         --
1997--Institu-
tional
Shares(b).......   21.25      0.29           3.96        (0.30)     (0.04)      (1.97)          --         --
1997--Service
Shares(b).......   20.71      0.28           4.50        (0.28)     (0.07)      (1.97)          --         --
- -----------------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   15.80      0.33           4.75        (0.30)       --        (0.60)          --         --
- -----------------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   15.79      0.20(f)        0.30(f)     (0.20)     (0.07)      (0.33)          --        0.11(f)
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1994--Class A
Shares(b).......   14.18      0.15           1.68        (0.15)     (0.01)      (0.06)          --         --
- -----------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                                                            RATIOS ASSUMING
                                                                                                          NO VOLUNTARY WAIVER
                                                                                                              OF FEES OR
                                                                                                          EXPENSE LIMITATIONS
                                                                                                       --------------------------
                                                                                             RATIO
                                                                                            OF NET                      RATIO
                     NET                                            NET        RATIO      INVESTMENT                   OF NET
                  INCREASE   NET ASSET                           ASSETS AT    OF NET     INCOME (LOSS)    RATIO      INVESTMENT
                 (DECREASE)   VALUE,                PORTFOLIO      END OF   EXPENSES TO   TO AVERAGE   OF EXPENSES  INCOME (LOSS)
                   IN NET     END OF     TOTAL      TURNOVER       PERIOD   AVERAGE NET       NET      TO AVERAGE    TO AVERAGE
                 ASSET VALUE  PERIOD   RETURN(A)      RATE       (IN 000S)    ASSETS        ASSETS     NET ASSETS    NET ASSETS
                 ----------- --------- ------------ ------------ ---------- ------------ ------------- ------------ -------------
                   GROWTH AND INCOME FUND
- -----------------------------------------------------------------------------------------------------------------------------------
<S>              <C>         <C>       <C>          <C>          <C>        <C>          <C>           <C>          <C>           
FOR THE SIX MONTH ENDED JULY 31 (UNAUDITED),
- --------------------------------------------
1998--Class A
Shares..........   $(0.40)    $25.53     (1.26)%(d)   37.78%(d)  $1,356,662    1.22%(c)       0.64%(c)    1.38%(c)       0.48%(c)
1998--Class B
Shares..........    (0.41)     25.32     (1.59)(d)    37.78(d)      416,520    1.88(c)       (0.03)(c)    1.88(c)       (0.03)(c)
1998--Class C
Shares..........    (0.43)     25.27     (1.63)(d)    37.78(d)       63,080    1.88(c)       (0.03)(c)    1.88(c)       (0.03)(c)
1998--Institu-
tional Shares...    (0.40)     25.55     (1.07)(d)    37.78(d)      192,094    0.80(c)        1.06(c)     0.80(c)        1.06(c)
1998--Service
Shares..........    (0.39)     25.53     (1.26)(d)    37.78(d)       12,338    1.30(c)        0.57(c)     1.30(c)        0.57(c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........     2.75      25.93     23.71        61.95       1,216,582    1.25           0.43        1.42           0.26
1998--Class B
Shares..........     2.63      25.73     22.87        61.95         307,815    1.94          (0.35)       1.94          (0.35)
1998--Class C
Shares(b).......    (2.50)     25.70      0.51(d)     61.95          31,686    1.99(c)       (0.48)(c)    1.99(c)       (0.48)(c)
1998--
Institutional
Shares..........     2.76      25.95     24.24        61.95          36.225    0.83           0.76        0.83           0.76
1998--Service
Shares..........     2.75      25.92     23.63        61.95           8,893    1.32           0.32        1.32           0.32
- -----------------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........     3.20      23.18     28.42        53.03         615,103    1.22           1.60        1.43           1.39
1997--Class B
Shares(b).......     2.28      23.10     22.23(d)     53.03          17,346    1.93(c)        0.15(c)     1.93(c)        0.15(c)
1997--Institu-
tional
Shares(b).......     1.94      23.19     20.77(d)     53.03             193    0.82(c)        1.36(c)     0.82(c)        1.36(c)
1997--Service
Shares(b).......     2.46      23.17     23.87(d)     53.03           3,174    1.32(c)        0.94(c)     1.32(c)        0.94(c)
- -----------------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........     4.18      19.98     32.45        57.93         436,757    1.20           1.67        1.45           1.42
- -----------------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........     0.01      15.80      3.97        71.80         193,772    1.25           1.28        1.58           0.95
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1994--Class A
Shares(b).......     1.61      15.79     13.08(d)    102.23          41,528    1.25(c)        1.23(c)     3.24(c)       (0.76)(c)
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the
    investment at the NAV at the end of the period and no sales or redemption
    charges. Total return would be reduced if a sales or redemption charge
    were taken into account.
(b) Class A, Class B, Class C, Institutional and Service Share activity
    commenced on February 5, 1993, May 1, 1996, August 15, 1997, June 3, 1996
    and March 6, 1996, respectively.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
(f) Calculated based on the average Shares outstanding methodology.
 
                                       14
<PAGE>
 
<TABLE>
<CAPTION>
                                  INCOME FROM                       DISTRIBUTIONS TO
                           INVESTMENT OPERATIONS(E)                   SHAREHOLDERS
                           ------------------------- -----------------------------------------------
                                                                             FROM NET   IN EXCESS OF    NET
                                       NET REALIZED                          REALIZED   NET REALIZED INCREASE/   NET
                 NET ASSET    NET     AND UNREALIZED            IN EXCESS    GAIN ON      GAIN ON    (DECREASE) ASSET
                  VALUE,   INVESTMENT GAIN (LOSS) ON  FROM NET    OF NET    INVESTMENT   INVESTMENT    IN NET   VALUE,
                 BEGINNING   INCOME    INVESTMENTS   INVESTMENT INVESTMENT AND FUTURES  AND FUTURES    ASSET    END OF   TOTAL
                 OF PERIOD   (LOSS)    AND FUTURES     INCOME     INCOME   TRANSACTIONS TRANSACTIONS   VALUE    PERIOD RETURN(A)
                 --------- ---------- -------------- ---------- ---------- ------------ ------------ ---------- ------ ---------
                                                                                  CORE U.S. EQUITY FUND
- ----------------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>            <C>        <C>        <C>          <C>          <C>        <C>    <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $26.59     $0.03        $3.61        $ --       $  --       $ --         $  --       $3.64    $30.23   13.69%(d)
1998--Class B
Shares..........   26.32     (0.04)        3.58          --          --         --            --        3.54     29.86   13.45(d)
1998--Class C
Shares..........   26.24     (0.04)        3.56          --          --         --            --        3.52     29.76   13.41(d)
1998--Institu-
tional Shares...   26.79      0.10         3.66          --          --         --            --        3.76     30.55   14.04(d)
1998--Service
Shares..........   26.53      0.05         3.60          --          --         --            --        3.65     30.18   13.76(d)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   23.32      0.11         5.63        (0.12)        --       (2.35)          --        3.27     26.59   24.96
1998--Class B
Shares..........   23.18      0.11         5.44          --        (0.06)     (2.00)        (0.35)      3.14     26.32   24.28
1998--Class C
Shares(b).......   27.48      0.03         1.22          --        (0.14)     (0.67)        (1.68)     (1.24)    26.24    4.85(d)
1998--Institu-
tional Shares...   23.44      0.30         5.65        (0.24)      (0.01)     (1.33)        (1.02)      3.35     26.79   25.76
1998--Service
Shares..........   23.27      0.19         5.57        (0.07)      (0.08)     (2.35)          --        3.26     26.53   25.11
- ----------------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   19.66      0.16         4.46        (0.16)        --       (0.80)          --        3.66     23.32   23.75
1997--Class B
Shares(b).......   20.44      0.04         3.70        (0.04)      (0.16)     (0.80)          --        2.74     23.18   18.59(d)
1997--Institu-
tional Shares...   19.71      0.30         4.51        (0.28)        --       (0.80)          --        3.73     23.44   24.63
1997--Service
Shares(b).......   21.02      0.13         3.15        (0.13)      (0.10)     (0.80)          --        2.25     23.27   15.92(d)
- ----------------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   14.61      0.19         5.43        (0.16)        --       (0.41)          --        5.05     19.66   38.63
1996--Institu-
tional
Shares(b).......   16.97      0.16         3.23        (0.24)        --       (0.41)          --        2.74     19.71   20.14(d)
- ----------------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   15.93      0.20        (0.38)       (0.20)        --       (0.94)          --       (1.32)    14.61   (1.10)
- ----------------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   15.46      0.17         2.08        (0.17)        --       (1.61)          --        0.47     15.93   15.12
- ----------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                 RATIOS ASSUMING
                                                               NO VOLUNTARY WAIVER
                                                                   OF FEES OR
                                                               EXPENSE LIMITATIONS
                                                               -----------------------
                                       RATIO OF    RATIO OF                RATIO OF
                                         NET         NET       RATIO OF      NET
                                NET    EXPENSES   INVESTMENT   EXPENSES   INVESTMENT
                             ASSETS AT    TO        INCOME        TO       INCOME
                 PORTFOLIO    END OF   AVERAGE    (LOSS) TO    AVERAGE    (LOSS) TO
                 TURNOVER     PERIOD     NET       AVERAGE       NET       AVERAGE
                   RATE      (IN 000S)  ASSETS    NET ASSETS    ASSETS    NET ASSETS
                 ----------- --------- ---------- ------------ ---------- ------------
- ----------------------------------------------------------------------------------------------------------------------------------
<S>              <C>         <C>       <C>        <C>          <C>        <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........   22.52%(d) $527,753    1.26%(c)    0.23%(c)    1.43%(c)    0.06%(c)
1998--Class B
Shares..........   22.52(d)   102,565    1.76(c)    (0.29)(c)    1.93(c)    (0.46)(c)
1998--Class C
Shares..........   22.52(d)    15,316    1.76(c)    (0.32)(c)    1.93(c)    (0.49)(c)
1998--Institu-
tional Shares...   22.52(d)   298,853    0.65(c)     0.83(c)     0.82(c)     0.66(c)
1998--Service
Shares..........   22.52(d)    10,388    1.15(c)     0.33(c)     1.32(c)     0.16(c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   65.89      398,393    1.28        0.51        1.47        0.32
1998--Class B
Shares..........   65.89       59,208    1.79       (0.05)       1.96       (0.22)
1998--Class C
Shares(b).......   65.89        6,267    1.78(c)    (0.21)(c)    1.95(c)    (0.38)(c)
1998--Institu-
tional Shares...   65.89      202,893    0.65        1.16        0.82        0.99
1998--Service
Shares..........   65.89        7,841    1.15        0.62        1.32        0.45
- ----------------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   37.78      225,968    1.29        0.91        1.53        0.67
1997--Class B
Shares(b).......   37.28       17,258    1.83(c)     0.06(c)     2.00(c)    (0.11)(c)
1997--Institu-
tional Shares...   37.28      148,942    0.65        1.52        0.85        1.32
1997--Service
Shares(b).......   37.28        3,666    1.15(c)     0.69(c)     1.35(c)     0.49(c)
- ----------------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   39.35      129,045    1.25        1.01        1.55        0.71
1996--Institu-
tional
Shares(b).......   39.35       64,829    0.65(c)     1.49(c)     0.96(c)     1.18(c)
- ----------------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   56.18       94,968    1.38        1.33        1.63        1.08
- ----------------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   87.73       92,769    1.42        0.92        1.67        0.67
- ----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the investment
    at the NAV at the end of the period and no sales or redemption charges.
    Total return would be reduced if a sales or redemption charge were taken
    into account.
(b) Class B, Class C, Institutional and Service Share activity commenced on May
    1, 1996, August 15, 1997, June 15, 1995 and June 7, 1996, respectively.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
                                       15
<PAGE>
 
 
<TABLE>
<CAPTION>
                                  INCOME FROM                       DISTRIBUTIONS TO
                           INVESTMENT OPERATIONS(E)                   SHAREHOLDERS
                           ------------------------- -----------------------------------------------
                                           NET                               FROM NET   IN EXCESS OF
                                       REALIZED AND                          REALIZED   NET REALIZED
                 NET ASSET    NET       UNREALIZED      FROM    IN EXCESS    GAIN ON      GAIN ON        NET     NET ASSET
                  VALUE,   INVESTMENT GAIN (LOSS) ON    NET       OF NET    INVESTMENT   INVESTMENT   INCREASE    VALUE,
                 BEGINNING   INCOME    INVESTMENTS   INVESTMENT INVESTMENT AND FUTURES  AND FUTURES    IN NET     END OF
                 OF PERIOD   (LOSS)    AND FUTURES     INCOME     INCOME   TRANSACTIONS TRANSACTIONS ASSET VALUE  PERIOD
                 --------- ---------- -------------- ---------- ---------- ------------ ------------ ----------- ---------
                                                                                CORE LARGE CAP GROWTH FUND
- --------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>            <C>        <C>        <C>          <C>          <C>         <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $11.97     $0.01        $1.97        $  --      $  --       $  --        $ --         $1.98     $13.95
1998--Class B
Shares..........   11.92     (0.02)        1.95           --         --          --          --          1.93      13.85
1998--Class C
Shares..........   11.93     (0.02)        1.93           --         --          --          --          1.91      13.84
1998--Institu-
tional Shares...   11.97      0.01         1.99           --         --          --          --          2.00      13.97
1998--Service
Shares..........   11.95       --          1.96           --         --          --          --          1.96      13.91
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1998--Class A
Shares(b).......   10.00      0.01         2.35         (0.01)       --        (0.32)      (0.06)        1.97      11.97
1998--Class B
Shares(b).......   10.00     (0.03)        2.33           --         --        (0.18)      (0.20)        1.92      11.92
1998--Class C
Shares(b).......   11.80     (0.02)        0.54           --       (0.01)      (0.38)        --          0.13      11.93
1998--Institu-
tional
Shares(b).......   10.00      0.01         2.35         (0.01)       --        (0.19)      (0.19)        1.97      11.97
1998--Service
Shares(b).......   10.00     (0.02)        2.35           --         --        (0.08)      (0.30)        1.95      11.95
- --------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                                  RATIOS ASSUMING NO
                                                                               VOLUNTARY WAIVER OF FEES
                                                                                OR EXPENSE LIMITATIONS
                                                                               ----------------------------------------
                                                                                                      RATIO
                                            NET       RATIO      RATIO OF NET                        OF NET
                                         ASSETS AT    OF NET      INVESTMENT     RATIO OF          INVESTMENT
                             PORTFOLIO     END OF    EXPENSES   INCOME (LOSS)  EXPENSES TO          (LOSS) TO
                   TOTAL     TURNOVER      PERIOD   TO AVERAGE  TO AVERAGE NET AVERAGE NET           AVERAGE
                 RETURN(A)     RATE      (IN 000'S) NET ASSETS      ASSETS        ASSETS           NET ASSETS
                 ----------- ----------- ---------- ----------- -------------- ------------------- --------------------
- --------------------------------------------------------------------------------------------------------------------------
<S>              <C>         <C>         <C>        <C>         <C>            <C>                 <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........   16.54%(d)   45.79%(d)  $116,939     0.90%(c)      0.19%(c)            1.61%(c)           (0.52)%(c)
1998--Class B
Shares..........   16.19(d)    45.79(d)     49,881     1.65(c)      (0.56)(c)            2.11(c)            (1.02)(c)
1998--Class C
Shares..........   16.01(d)    45.79(d)     15,724     1.65(c)      (0.57)(c)            2.11(c)            (1.03)(c)
1998--Institu-
tional Shares...   16.71(d)    45.79(d)    135,153     0.65(c)       0.42 (c)            1.11(c)            (0.04)(c)
1998--Service
Shares..........   16.40(d)    45.79(d)        507     1.15(c)      (0.04)(c)            1.61(c)            (0.50)(c)
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1998--Class A
Shares(b).......   23.79(d)    74.97(d)     53,786     0.91(c)       0.12 (c)            2.40(c)            (1.37)(c)
1998--Class B
Shares(b).......   23.26(d)    74.97(d)     13,857     1.67(c)      (0.72)(c)            2.91(c)            (1.96)(c)
1998--Class C
Shares(b).......    4.56(d)    74.97(d)      4,132     1.68(c)      (0.76)(c)            2.92(c)            (2.00)(c)
1998--Institu-
tional
Shares(b).......   23.89(d)    74.97(d)      4,656     0.72(c)       0.42 (c)            1.96(c)            (0.82)(c)
1998--Service
Shares(b).......   23.56(d)    74.97(d)        115     1.17(c)      (0.21)(c)            2.41(c)            (1.45)(c)
- --------------------------------------------------------------------------------------------------------------------------
</TABLE>
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the
    investment at the NAV at the end of the period and no sales or redemption
    charges. Total return would be reduced if a sales or redemption charge
    were taken into account.
(b) Class A, Class B, Institutional and Service Share activity commenced on
    May 1, 1997. Class C Share activity commenced on August 15, 1997.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
                                       16
<PAGE>
 
<TABLE>
<CAPTION>
                                  INCOME FROM           DISTRIBUTIONS TO
                           INVESTMENT OPERATIONS(E)       SHAREHOLDERS
                           ------------------------- -----------------------
                                           NET
                                       REALIZED AND               FROM NET
                                        UNREALIZED                REALIZED
                 NET ASSET    NET     GAIN (LOSS) ON    FROM      GAIN ON        NET     NET ASSET
                  VALUE,   INVESTMENT INVESTMENT AND    NET      INVESTMENT   INCREASE    VALUE,               PORTFOLIO
                 BEGINNING   INCOME      FUTURES     INVESTMENT AND FUTURES    IN NET     END OF     TOTAL     TURNOVER
                 OF PERIOD   (LOSS)    TRANSACTIONS    INCOME   TRANSACTIONS ASSET VALUE  PERIOD   RETURN(A)     RATE
                 --------- ---------- -------------- ---------- ------------ ----------- --------- ---------   ---------
                                                                               CORE SMALL CAP EQUITY FUND
- --------------------------------------------------------------------------------------------------------------------------
<CAPTION>
<S>              <C>       <C>        <C>            <C>        <C>          <C>         <C>       <C>         <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $10.59     $   --       $0.11         $ --       $  --        $0.11     $10.70     1.04%(d)    16.06%(d)
1998--Class B
Shares..........   10.56      (0.03)       0.10           --          --         0.07      10.63     0.66(d)     16.06(d)
1998--Class C
Shares..........   10.57      (0.03)       0.10           --          --         0.07      10.64     0.66(d)     16.06(d)
1998--Institu-
tional Shares...   10.61       0.02        0.10           --          --         0.12      10.73     1.13(d)     16.06(d)
1998--Service
Shares..........   10.60      (0.01)       0.11           --          --         0.10      10.70     0.94(d)     16.06(d)
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1998--Class A
Shares(b).......   10.00      (0.01)       0.65           --       (0.05)        0.59      10.59     6.37(d)     37.65(d)
1998--Class B
Shares(b).......   10.00      (0.03)       0.64           --       (0.05)        0.56      10.56     6.07(d)     37.65(d)
1998--Class C
Shares(b).......   10.00      (0.02)       0.64           --       (0.05)        0.57      10.57     6.17(d)     37.65(d)
1998--Institu-
tional
Shares(b).......   10.00       0.01        0.65           --       (0.05)        0.61      10.61     6.57(d)     37.65(d)
1998--Service
Shares(b).......   10.00       0.01        0.64           --       (0.05)        0.60      10.60     6.47(d)     37.65(d)

<CAPTION> 
                                                        RATIOS ASSUMING NO       
                                                     VOLUNTARY WAIVER OF FEES    
                                                      OR EXPENSE LIMITATIONS     
                                                     --------------------------- 
                                                                      RATIO      
                    NET      RATIO     RATIO OF NET                  OF NET      
                 ASSETS AT   OF NET     INVESTMENT    RATIO OF     INVESTMENT    
                  END OF    EXPENSES   INCOME (LOSS) EXPENSES TO  INCOME (LOSS)  
                  PERIOD   TO AVERAGE   TO AVERAGE   AVERAGE NET   TO AVERAGE    
                 (IN 000S) NET ASSETS   NET ASSETS     ASSETS      NET ASSETS    
                 --------- ----------- ------------- ------------ --------------  
- --------------------------------------------------------------------------------------------------------------------------
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
<S>              <C>         <C>          <C>          <C>          <C>
1998--Class A
Shares..........  $20,989     1.25%(c)      0.07%(c)    2.14%(c)      (0.82)%(c)
1998--Class B
Shares..........   14,843     1.95(c)      (0.62)(c)    2.64(c)       (1.31)(c)
1998--Class C
Shares..........    4,433     1.95(c)      (0.62)(c)    2.64(c)       (1.31)(c)
1998--Institu-
tional Shares...   44,614     0.95(c)       0.46(c)     1.64(c)       (0.23)(c)
1998--Service
Shares..........       22     1.45(c)      (0.40)(c)    2.14(c)       (1.09)(c)
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1998--Class A
Shares(b).......   11,118     1.25(c)      (0.36)(c)    3.92(c)       (3.03)(c)
1998--Class B
Shares(b).......    9,957     1.95(c)      (1.04)(c)    4.37(c)       (3.46)(c)
1998--Class C
Shares(b).......    2,557     1.95(c)      (1.07)(c)    4.37(c)       (3.49)(c)
1998--Institu-
tional
Shares(b).......    9,026     0.95(c)       0.15 (c)    3.37(c)       (2.27)(c)
1998--Service
Shares(b).......        2     1.45(c)       0.40 (c)    3.87(c)       (2.02)(c)
- --------------------------------------------------------------------------------------------------------------------------
</TABLE>
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the investment
    at the NAV at the end of the period and no sales or redemption charges.
    Total return would be reduced if a sales or redemption charge were taken
    into account.
(b) Commenced operations on August 15, 1997.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
                                       17
<PAGE>
 
<TABLE>
<CAPTION>
                                  INCOME FROM
                           INVESTMENT OPERATIONS(E)           DISTRIBUTIONS TO SHAREHOLDERS
                           ------------------------- -----------------------------------------------
                                           NET                               FROM NET   IN EXCESS OF     NET
                 NET ASSET    NET      REALIZED AND     FROM    IN EXCESS    REALIZED   NET REALIZED  INCREASE   NET ASSET
                  VALUE,   INVESTMENT   UNREALIZED      NET       OF NET     GAIN ON      GAIN ON    (DECREASE)   VALUE,
                 BEGINNING   INCOME   GAIN (LOSS) ON INVESTMENT INVESTMENT  INVESTMENT   INVESTMENT    IN NET     END OF
                 OF PERIOD   (LOSS)    INVESTMENTS     INCOME     INCOME   TRANSACTIONS TRANSACTIONS ASSET VALUE  PERIOD
                 --------- ---------- -------------- ---------- ---------- ------------ ------------ ----------- ---------
                                                                                                      CAPITAL GROWTH FUND
- --------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>            <C>        <C>        <C>          <C>          <C>         <C>
FOR THE SIX MONTHS ENDED JULY 31 (UNAUDITED),
- ---------------------------------------------
1998--Class A
Shares..........  $18.48     $(0.01)      $ 3.32       $ --       $ --        $ --         $  --       $ 3.31     $21.79
1998--Class B
Shares..........   18.27      (0.06)        3.26         --         --          --            --         3.20      21.47
1998--Class C
Shares..........   18.24      (0.05)        3.23         --         --          --            --         3.18      21.42
1998--Institu-
tional Shares...   18.45       0.01         3.32         --         --          --            --         3.33      21.78
1998--Service
Shares..........   18.46      (0.02)        3.30         --         --          --            --         3.28      21.74
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   16.73       0.02         4.78       (0.01)     (0.01)      (3.03)          --         1.75      18.48
1998--Class B
Shares..........   16.67       0.02         4.61         --         --        (1.20)        (1.83)       1.60      18.27
1998--Class C
Shares(b).......   19.73      (0.02)        1.60         --       (0.04)      (0.47)        (2.56)      (1.49)     18.24
1998--Institu-
tional
Shares(b).......   19.88       0.02         1.66       (0.01)     (0.07)      (0.41)        (2.62)      (1.43)     18.45
1998--Service
Shares(b).......   19.88      (0.01)        1.66         --       (0.04)      (0.76)        (2.27)      (1.42)     18.46
- --------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   14.91       0.10         3.56       (0.10)     (0.02)      (1.72)          --         1.82      16.73
1997--Class B
Shares(b).......   15.67       0.01         2.81       (0.01)     (0.09)      (1.72)          --         1.00      16.67
- --------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   13.67       0.12         3.93       (0.12)       --        (2.69)          --         1.24      14.91
- --------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   15.96       0.03        (0.69)      (0.01)       --        (1.62)          --        (2.29)     13.67
- --------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   14.64       0.02         2.40       (0.01)     (0.02)      (1.07)          --         1.32      15.96
<CAPTION>
                                                                                    RATIOS ASSUMING NO
                                                                                 VOLUNTARY WAIVER OF FEES
                                                                                 ---------------------------
                                                                                                  RATIO
                                            NET       RATIO       RATIO OF NET                   OF NET
                                         ASSETS AT    OF NET       INVESTMENT     RATIO OF     INVESTMENT
                             PORTFOLIO     END OF    EXPENSES   INCOME (LOSS) TO EXPENSES TO  INCOME (LOSS)
                   TOTAL     TURNOVER      PERIOD   TO AVERAGE    AVERAGE NET    AVERAGE NET   TO AVERAGE
                 RETURN(A)     RATE      (IN 000S)  NET ASSETS       ASSETS        ASSETS      NET ASSETS
                 ----------- ----------- ---------- ----------- ---------------- ------------ --------------
- --------------------------------------------------------------------------------------------------------------------------
<S>              <C>         <C>         <C>        <C>         <C>              <C>          <C>
FOR THE SIX MONTHS ENDED JULY 31 (UNAUDITED),
- ---------------------------------------------
1998--Class A
Shares..........   17.91%(d)   10.02%(d) $1,639,118    1.39%(c)      (0.12)%(c)     1.64%(c)      (0.37)%(c)
1998--Class B
Shares..........   17.52(d)    10.02(d)     125,092    2.14(c)       (0.92)(c)      2.14(c)       (0.92)(c)
1998--Class C
Shares..........   17.43(d)    10.02(d)      27,385    2.14(c)       (0.94)(c)      2.14(c)       (0.94)(c)
1998--Institu-
tional Shares...   18.05(d)    10.02(d)      15,248    1.10(c)        0.11 (c)      1.10(c)        0.11 (c)
1998--Service
Shares..........   17.77(d)    10.02(d)       1,222    1.60(c)       (0.44)(c)      1.60(c)       (0.44)(c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   29.71       61.50      1,256,595    1.40           0.08          1.65          (0.17)
1998--Class B
Shares..........   28.73       61.50         40,827    2.18          (0.77)         2.18          (0.77)
1998--Class C
Shares(b).......    8.83(d)    61.50          5,395    2.21(c)       (0.86)(c)      2.21(c)       (0.86)(c)
1998--Institu-
tional
Shares(b).......    9.31(d)    61.50          7,262    1.16(c)        0.18 (c)      1.16(c)        0.18 (c)
1998--Service
Shares(b).......    9.18(d)    61.50              2    1.50(c)       (0.16)(c)      1.50(c)       (0.16)(c)
- --------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   25.97       52.92        920,646    1.40           0.62          1.65           0.37
1997--Class B
Shares(b).......   19.39(d)    52.92          3,221    2.15(c)       (0.39)(c)      2.15(c)       (0.39)(c)
- --------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   30.45       63.90        881,056    1.36           0.65          1.61           0.40
- --------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   (4.38)      38.36        862,105    1.38           0.16          1.63          (0.09)
- --------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   16.89       36.12        833,682    1.38           0.13          1.63          (0.12)
</TABLE>
- --------------------------------------------------------------------------------
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the investment
    at the NAV at the end of the period and no sales or redemption charges.
    Total return would be reduced if a sales or redemption charge were taken
    into account.
(b) Class B, Class C, Institutional and Service Share activity commenced on May
    1, 1996, August 15, 1997, August 15, 1997 and August 15, 1997,
    respectively.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
                                       18
<PAGE>
 
<TABLE>
<CAPTION>
                                   INCOME FROM
                            INVESTMENT OPERATIONS(E)           DISTRIBUTIONS TO SHAREHOLDERS
                           --------------------------- ---------------------------------------------
                                        NET REALIZED
                                       AND UNREALIZED
                                       GAIN (LOSS) ON                                        NET
                                        INVESTMENTS,                           FROM NET    INCREASE   NET
                 NET ASSET    NET       OPTIONS AND               IN EXCESS    REALIZED   (DECREASE) ASSET
                  VALUE,   INVESTMENT FOREIGN CURRENCY  FROM NET    OF NET     GAIN ON      IN NET   VALUE,
                 BEGINNING   INCOME       RELATED      INVESTMENT INVESTMENT  INVESTMENT    ASSET    END OF   TOTAL
                 OF PERIOD   (LOSS)     TRANSACTIONS     INCOME     INCOME   TRANSACTIONS   VALUE    PERIOD RETURN(A)
                 --------- ---------- ---------------- ---------- ---------- ------------ ---------- ------ ---------
                                                                                MID CAP EQUITY FUND
- ------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>              <C>        <C>        <C>          <C>        <C>    <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $21.61     $0.03         $(0.79)       $ --       $ --        $  --       $(0.76)  $20.85   (3.52)%(d)
1998--Class B
Shares..........   21.57     (0.02)         (0.78)         --         --           --        (0.80)   20.77   (3.71)(d)
1998--Class C
Shares..........   21.59     (0.02)         (0.79)         --         --           --        (0.81)   20.78   (3.75)(d)
1998--Institu-
tional Shares...   21.65      0.09          (0.80)         --         --           --        (0.71)   20.94   (3.28)(d)
1998--Service
Shares..........   21.62       --           (0.75)         --         --           --        (0.75)   20.87   (3.47)(d)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares(b).......   23.63      0.09           0.76        (0.06)     (0.04)      $(2.77)      (2.02)   21.61    3.42(d)
1998--Class B
Shares(b).......   23.63      0.06           0.74        (0.09)       --         (2.77)      (2.06)   21.57    3.17(d)
1998--Class C
Shares(b).......   23.63      0.06           0.76        (0.09)       --         (2.77)      (2.04)   21.59    3.27(d)
1998--Institu-
tional Shares...   18.73      0.16           5.66        (0.13)       --         (2.77)       2.92    21.65   30.86
1998--Service
Shares(b).......   23.01      0.09           1.40        (0.11)       --         (2.77)      (1.39)   21.62    6.30(d)
- ------------------------------------------------------------------------------------------------------------------------
1997--Institu-
tional Shares...   15.91      0.24           3.77        (0.24)     (0.93)       (0.02)       2.82    18.73   25.63
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1996--Institu-
tional
Shares(b).......   15.00      0.13           0.90        (0.12)       --           --         0.91    15.91    6.89(d)
<CAPTION>
                                                                 RATIOS ASSUMING NO
                                                                EXPENSE LIMITATIONS
                                                               ------------------------
                                       RATIO OF    RATIO OF
                                         NET         NET       RATIO OF     RATIO OF
                                NET    EXPENSES   INVESTMENT   EXPENSES        NET
                             ASSETS AT    TO        INCOME        TO       INVESTMENT
                 PORTFOLIO    END OF   AVERAGE    (LOSS) TO    AVERAGE    INCOME (LOSS)
                 TURNOVER     PERIOD     NET       AVERAGE       NET       TO AVERAGE
                   RATE      (IN 000S)  ASSETS    NET ASSETS    ASSETS     NET ASSETS
                 ----------- --------- ---------- ------------ ---------- -------------
                                                                                MID CAP EQUITY FUND
- ------------------------------------------------------------------------------------------------------------------------
<S>              <C>         <C>       <C>        <C>          <C>        <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........   27.55%(d) $118,663    1.35%(c)    0.28%(c)    1.47%(c)      0.16%(c)
1998--Class B
Shares..........   27.55(d)    46,268    1.85(c)    (0.21)(c)    1.97(c)      (0.33)(c)
1998--Class C
Shares..........   27.55(d)    12,615    1.85(c)    (0.21)(c)    1.97(c)      (0.33)(c)
1998--Institu-
tional Shares...   27.55(d)   230,251    0.85(c)     0.79 (c)    0.97(c)       0.67 (c)
1998--Service
Shares..........   27.55(d)        83    1.35(c)     0.18 (c)    1.47(c)       0.06 (c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares(b).......   62.60       90,588    1.35(c)     0.33(c)     1.47(c)       0.21%(c)
1998--Class B
Shares(b).......   62.60       28,743    1.85(c)    (0.20)(c)    1.97(c)      (0.32)(c)
1998--Class C
Shares(b).......   62.60        6,445    1.85(c)    (0.23)(c)    1.97(c)      (0.35)(c)
1998--Institu-
tional Shares...   62.60      236,440    0.85        0.78        0.97          0.66
1998--Service
Shares(b).......   62.60            8    1.35(c)     0.63(c)     1.43(c)       0.51(c)
- ------------------------------------------------------------------------------------------------------------------------
1997--Institu-
tional Shares...   74.03      145,253    0.85        1.35        0.91          1.29
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1996--Institu-
tional
Shares(b).......   58.77(d)   135,671    0.85(c)     1.67(c)     0.98(c)       1.54(c)
</TABLE>
- --------------------------------------------------------------------------------
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the investment
    at the NAV at the end of the period and no sales or redemption charges.
    Total return would be reduced if a sales or redemption charge were taken
    into account.
(b) Class A, Class B, Class C, Institutional and Service Share activity
    commenced on August 15, 1997, August 15, 1997, August 15, 1997, August 1,
    1995 and July 18, 1997, respectively.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
                                       19
<PAGE>
 
<TABLE>
<CAPTION>
                                 INCOME (LOSS) FROM
                              INVESTMENT OPERATIONS(E)        DISTRIBUTIONS TO SHAREHOLDERS
                           ------------------------------- ------------------------------------
                                                                         FROM NET
                                          NET REALIZED                REALIZED GAIN
                 NET ASSET    NET        AND UNREALIZED       FROM    ON INVESTMENT, IN EXCESS
                  VALUE,   INVESTMENT    GAIN (LOSS) ON       NET      OPTIONS AND     OF NET
                 BEGINNING   INCOME      INVESTMENT AND    INVESTMENT    FUTURES     INVESTMENT
                 OF PERIOD   (LOSS)   OPTIONS TRANSACTIONS   INCOME    TRANSACTIONS    INCOME
                 --------- ---------- -------------------- ---------- -------------- ----------
- ------------------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>                  <C>        <C>            <C>
FOR THE SIX MONTHS ENDED JULY 31 (UNAUDITED),
- ---------------------------------------------
1998--Class A
Shares..........  $24.05     $(0.02)         $(0.17)         $  --        $ --         $  --
1998--Class B
Shares..........   23.73      (0.11)          (0.17)            --          --            --
1998--Class C
Shares..........   23.73      (0.09)          (0.19)            --          --            --
1998--Institu-
tional Shares...   24.09       0.03           (0.18)            --          --            --
1998--Service
Shares..........   24.05        --            (0.19)            --          --            --
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   20.91       0.14            5.33             --        (2.33)          --
1998--Class B
Shares..........   20.80      (0.01)           5.27             --        (2.33)          --
1998--Class C
Shares(b).......   24.69      (0.06)           1.43             --        (1.99)        (0.34)
1998--Institu-
tional
Shares(b).......   24.91       0.03            1.48             --        (2.05)        (0.28)
1998--Service
Shares(b).......   24.91      (0.01)           1.48             --        (2.02)        (0.31)
- ------------------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   17.29      (0.21)           4.92             --        (1.09)          --
1997--Class B
Shares(b).......   20.79      (0.11)           1.21             --        (1.09)          --
- ------------------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   16.14      (0.23)           1.39             --        (0.01)          --
- ------------------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   20.67      (0.07)          (3.53)            --        (0.69)        (0.24)
- ------------------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   16.68      (0.04)           5.03             --        (1.00)          --
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1993--Class A
Shares(b).......   14.18       0.03            2.50           (0.03)        --            --
<CAPTION>
                                                                                                          RATIOS ASSUMING NO
                                                                                                           VOLUNTARY WAIVER
                                                                                                               OF FEES
                                                                                                      ----------------------------
                                                                                          RATIO OF                     RATIO OF
                 NET INCREASE                                   NET ASSETS   RATIO OF    NET INVESTMENT   RATIO OF    NET INVESTMENT
                  (DECREASE)  NET ASSET              PORTFOLIO  AT END OF  NET EXPENSES INCOME (LOSS) TO EXPENSES TO  INCOME (LOSS)
                 IN NET ASSET VALUE, END    TOTAL    TURNOVER     PERIOD    TO AVERAGE    AVERAGE NET      AVERAGE    TO AVERAGE NET
                    VALUE     OF PERIOD   RETURN(A)    RATE     (IN 000S)   NET ASSETS       ASSETS      NET ASSETS       ASSETS
                 ------------ ---------- ---------- ---------- ---------- ------------ ---------------- ------------ ---------------
                       SMALL CAP VALUE FUND
- ------------------------------------------------------------------------------------------------------------------------------------
<S>              <C>          <C>        <C>           <C>         <C>        <C>          <C>              <C>          <C>
FOR THE SIX MONTHS ENDED JULY 31 (UNAUDITED),
- ---------------------------------------------
1998--Class A
Shares..........    $(0.19)     $23.86   (0.79)%(d)    46.40%(d)  $402,797      1.50%(c)      (0.16)%(c)     1.75%(c)     (0.41)%(c)
1998--Class B                                                                                                            
Shares..........     (0.28)      23.45   (1.18)(d)     46.40(d)     54,241      2.25(c)       (0.90)(c)      2.25(c)      (0.90)(c)
1998--Class C                                                                                                            
Shares..........     (0.28)      23.45   (1.18)(d)     46.40(d)      9,308      2.25(c)       (0.88)(c)      2.25(c)      (0.88)(c)
1998--Institu-                                                                                                           
tional Shares...     (0.15)      23.94   (0.62)(d)     46.40(d)     18,197      1.15(c)        0.21(c)       1.15(c)       0.21(c)
1998--Service                                                                                                            
Shares..........     (0.19)      23.86   (0.79)(d)     46.40(d)         76      1.65(c)       (0.09)(c)      1.65(c)      (0.09)(c)
FOR THE YEARS ENDED JANUARY 31,                                                                                          
- -------------------------------                                                                                          
1998--Class A                                                                                                            
Shares..........      3.14       24.05   26.17         84.81       370,246      1.54          (0.28)         1.76         (0.50)
1998--Class B                                                                                                            
Shares..........      2.93       23.73   25.29         84.81        42,677      2.29          (0.92)         2.29         (0.92)
1998--Class C                                                                                                            
Shares(b).......     (0.96)      23.73    5.51(d)      84.81         5,604      2.09(c)       (0.79)(c)      2.09(c)      (0.79)(c)
1998--Institu-                                                                                                           
tional                                                                                                                   
Shares(b).......     (0.82)      24.09    6.08(d)      84.81        14,626      1.16(c)        0.27(c)       1.16(c)       0.27(c)
1998--Service                                                                                                            
Shares(b).......     (0.86)      24.05    5.91(d)      84.81             2      1.45(c)       (0.07)(c)      1.45(c)      (0.07)(c)
- ------------------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........      3.62       20.91   27.28         99.46       212,061      1.60          (0.72)         1.85         (0.97)
1997--Class B                                                                                                           
Shares(b).......      0.01       20.80    5.39(d)      99.46         3,674      2.35(c)       (1.63)(c)      2.35(c)      (1.63)(c)
- ------------------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........      1.15       17.29    7.20         57.58       204,994      1.41          (0.59)         1.66         (0.84)
- ------------------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........     (4.53)      16.14  (17.53)        43.67       319,487      1.53          (0.53)         1.78         (0.78)
- ------------------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........      3.99       20.67   30.13         56.81       261,074      1.60          (0.45)         1.85         (0.70)
FOR THE PERIOD ENDED JANUARY 31,        
- --------------------------------        
1993--Class A                           
Shares(b).......      2.50       16.68   17.86(d)       7.12        59,339      1.65(c)        0.62(c)       2.70(c)      (0.43)(c)
</TABLE>
- --------------------------------------------------------------------------------
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the investment
    at the NAV at the end of the period and no sales or redemption charges.
    Total return would be reduced if a sales or redemption charge were taken
    into account.
(b) Class A, Class B, Class C, Institutional and Service Share activity
    commenced on October 22, 1992, May 1, 1996, August 15, 1997, August 15,
    1997 and August 15, 1997, respectively.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
 
 
                                       20
<PAGE>
 
 
                      INVESTMENT OBJECTIVES AND POLICIES
 
  The investment objectives and principal investment policies of each Fund are
described below. Other investment practices and management techniques, which
involve certain risks, are described under "Description of Securities," "Risk
Factors" and "Investment Techniques." There can be no assurance that a Fund's
investment objectives will be achieved.
 
  The Investment Adviser may purchase for the Funds common stocks, preferred
stocks, interests in real estate investment trusts, convertible debt
obligations, convertible preferred stocks, equity interests in trusts,
partnerships, joint ventures, limited liability companies and similar
enterprises, warrants and stock purchase rights ("equity securities"). In
choosing a Fund's securities, the Investment Adviser utilizes first-hand
fundamental research, including visiting company facilities to assess
operations and to meet decision-makers. The Investment Adviser may also use
macro analysis of numerous economic and valuation variables to anticipate
changes in company earnings and the overall investment climate. The Investment
Adviser is able to draw on the research and market expertise of the Goldman
Sachs Global Investment Research Department and other affiliates of the
Investment Adviser, as well as information provided by other securities
dealers. Equity securities in a Fund's portfolio will generally be sold when
the Investment Adviser believes that the market price fully reflects or
exceeds the securities' fundamental valuation or when other more attractive
investments are identified.
 
  Value Style Funds. The Growth and Income, Mid Cap Equity, Small Cap Value
Funds and a portion of the equity component of the Balanced Fund are managed
using a value oriented approach. The Investment Adviser evaluates securities
using fundamental analysis and intends to purchase equity securities that are,
in its view, underpriced relative to a combination of such companies' long-
term earnings prospects, growth rate, free cash flow and/or dividend-paying
ability. Consideration will be given to the business quality of the issuer.
Factors positively affecting the Investment Adviser's view of that quality
include the competitiveness and degree of regulation in the markets in which
the company operates, the existence of a management team with a record of
success, the position of the company in the markets in which it operates, the
level of the company's financial leverage and the sustainable return on
capital invested in the business. The Funds may also purchase securities of
companies that have experienced difficulties and that, in the opinion of the
Investment Adviser, are available at attractive prices.
 
  Growth Style Funds. The Capital Growth Fund and a portion of the equity
component of the Balanced Fund are managed using a growth equity oriented
approach. Equity securities for these Funds are selected based on their
prospects for above average growth. The Investment Adviser will select
securities of growth companies trading, in the Investment Adviser's opinion,
at a reasonable price relative to other industries, competitors and historical
price/earnings multiples. The Funds generally will invest in companies whose
earnings are believed to be in a relatively strong growth trend, or, to a
lesser extent, in companies in which significant further growth is not
anticipated but whose market value per share is thought to be undervalued. In
order to determine whether a security has favorable growth prospects, the
Investment Adviser ordinarily looks for one or more of the following
characteristics in relation to the security's prevailing price: prospects for
above average sales and earnings growth per share; high return on invested
capital; free cash flow generation; sound balance sheet, financial and
accounting policies, and overall financial strength; strong competitive
advantages; effective research, product development, and marketing; pricing
flexibility; strength of management; and general operating characteristics
that will enable the company to compete successfully in its marketplace.
 
                                      21
<PAGE>
 
  Quantitative Style Funds. The CORE Large Cap Value, CORE U.S. Equity, CORE
Large Cap Growth and CORE Small Cap Equity Funds (the "CORE Funds") are
managed using both quantitative and fundamental techniques. CORE is an acronym
for "Computer-Optimized, Research-Enhanced," which reflects the CORE Funds'
investment process. This investment process and the proprietary multifactor
model used to implement it are discussed below.
 
  Investment Process. The Investment Adviser begins with a broad universe of
U.S. equity securities for the CORE Funds. As described more fully below, the
Investment Adviser uses a proprietary multifactor model (the "Multifactor
Model") to forecast the returns of different markets and individual
securities. In the case of an equity security followed by the Goldman Sachs
Global Investment Research Department (the "Research Department"), a rating is
assigned based upon the Research Department's evaluation. In the discretion of
the Investment Adviser, ratings may also be assigned to equity securities
based on research ratings obtained from other industry sources.
 
  In building a diversified portfolio for each CORE Fund, the Investment
Adviser utilizes optimization techniques to seek to maximize the Fund's
expected return, while maintaining a risk profile similar to the Fund's
benchmark. Each portfolio is primarily comprised of securities rated highest
by the foregoing investment process and has risk characteristics and industry
weightings similar to the relevant Fund's benchmark.
 
  Multifactor Model. The Multifactor Model is a rigorous computerized rating
system for forecasting the returns of different equity markets and individual
equity securities according to fundamental investment characteristics. The
CORE Funds use the Multifactor Model to forecast the returns of securities
held in each Fund's portfolio. The Multifactor Model incorporates common
variables covering measures of value, growth, momentum and risk (e.g.,
book/price ratio, earnings/price ratio, price momentum, price volatility,
consensus growth forecasts, earnings estimate revisions and earnings
stability). All of the factors used in the Multifactor Model have been shown
to significantly impact the performance of the securities and markets they
were designed to forecast.
 
  The weightings assigned to the factors in the Multifactor Model used by the
CORE Funds are derived using a statistical formulation that considers each
factor's historical performance in different market environments. As such, the
Multifactor Model is designed to evaluate each security using only the factors
that are statistically related to returns in the anticipated market
environment. Because it includes many disparate factors, the Investment
Adviser believes that the Multifactor Model is broader in scope and provides a
more thorough evaluation than most conventional quantitative models.
Securities and markets ranked highest by the Multifactor Model do not have one
dominant investment characteristic; rather, they possess an attractive
combination of investment characteristics.
 
  Research Department. In assigning ratings to equity securities, the Research
Department uses a four category rating system ranging from "recommended for
purchase" to "likely to underperform." The ratings reflect the analyst's
judgment as to the investment results of a specific security and incorporate
economic outlook, valuation, risk and a variety of other factors.
 
  By employing both a quantitative (i.e., the Multifactor Model) and a
qualitative (i.e., research enhanced) method of selecting securities, the CORE
Funds seek to capitalize on the strengths of each discipline.
 
                                      22
<PAGE>
 
 BALANCED FUND
 
  Objective. The Fund's investment objective is to provide investors with
long-term capital growth and current income. The Fund seeks capital
appreciation primarily through the equity component of its portfolio while
investing in fixed-income securities primarily to provide income for regular
quarterly dividends.
 
  Primary Investment Focus. The Fund invests, under normal circumstances,
between 45% and 65% of its total assets in equity securities. The Fund also
invests at least 25% of its total assets in fixed-income senior securities and
the remainder of its assets in other fixed-income securities and cash. The
percentage of the portfolio invested in equity and fixed-income securities
will vary from time to time as the Investment Adviser evaluates their relative
attractiveness based on market valuations, economic growth and inflation
prospects. This allocation is subject to the Fund's intention to pay regular
quarterly dividends. The amount of quarterly dividends can also be expected to
fluctuate in accordance with factors such as prevailing interest rates and the
percentage of the Fund's assets invested in fixed-income securities.
 
  Other. Although the Fund's equity investments consist primarily of publicly
traded U.S. securities, the Fund may invest up to 10% of its total assets in
the equity securities of foreign issuers, including issuers in Emerging
Countries and equity securities quoted in foreign currencies. A portion of the
Fund's portfolio of equity securities may be selected primarily to provide
current income. Equity securities selected to provide current income may
include interests in real estate investment trusts, convertible securities,
preferred stocks, utility stocks and interests in limited partnerships.
 
  The Fund's fixed-income securities primarily include securities issued by
the U.S. Government, its agencies, instrumentalities or sponsored enterprises,
corporations or other entities, mortgage-backed and asset-backed securities,
municipal securities and custodial receipts. The Fund may also invest in debt
obligations (U.S. dollar and non-U.S. dollar denominated) issued or guaranteed
by one or more foreign governments or any of their political subdivisions,
agencies or instrumentalities and foreign corporations or other entities. Such
securities are collectively referred to herein as "fixed-income securities."
The Fund's investments in fixed-income securities that are issued by foreign
issuers, including issuers in Emerging Countries, may not exceed 10% of the
Fund's total assets. The Fund may employ certain currency techniques to seek
to hedge against currency exchange rate fluctuations or to seek to increase
total return. When used to seek to enhance return, these management techniques
are considered speculative. Such currency management techniques involve risks
different from those associated with investing solely in securities of U.S.
issuers quoted in U.S. dollars. See "Description of Securities," "Investment
Techniques" and "Risk Factors."
 
 GROWTH AND INCOME FUND
 
 
  Objectives. The Fund's investment objectives are to provide investors with
long-term growth of capital and growth of income.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 65% of its total assets in equity securities that the Investment Adviser
considers to have favorable prospects for capital appreciation and/or
dividend-paying ability.
 
  Other. The Fund may invest up to 35% of its total assets in fixed-income
securities that, in the opinion of the Investment Adviser, offer the potential
to further the Fund's investment objectives. In addition, although the Fund
will invest primarily in publicly traded U.S. securities, it may invest up to
25% of its total assets in foreign securities, including securities of issuers
in Emerging Countries and securities quoted in foreign currencies.
 
 
                                      23
<PAGE>
 
 CORE LARGE CAP VALUE FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term growth of capital and dividend income. The Fund seeks to achieve its
objective through a broadly diversified portfolio of equity securities of
large cap U.S. issuers that are selling at low to modest valuations relative
to general market measures such as earnings, book value and other fundamental
accounting measures, and that are expected to have favorable prospects for
capital appreciation and/or dividend-paying ability.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 90% of its total assets in equity securities of U.S. issuers, including
certain foreign issuers that are traded in the United States. The Fund's
investments are selected using both a variety of quantitative techniques and
fundamental research in seeking to maximize the Fund's expected return, while
maintaining risk, style, capitalization and industry characteristics similar
to the Russell 1000 Value Index. The Fund seeks a portfolio comprised of
companies with above average capitalizations and low to moderate valuations as
measured by price/earnings ratios, book value and other fundamental accounting
measures. The Fund's investments in fixed-income securities are limited to
securities that are considered cash equivalents.
 
  For a description of the investment process of the Fund, see "Investment
Objectives and Policies--Quantitative Style Funds."
 
 CORE U.S. EQUITY FUND (FORMERLY, THE "SELECT EQUITY FUND")
 
 
  Objective: The Fund's investment objective is to provide investors with
long-term growth of capital and dividend income. The Fund seeks to achieve its
objective through a broadly diversified portfolio of large cap and blue chip
equity securities representing all major sectors of the U.S. economy.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 90% of its total assets in equity securities of U.S. issuers, including
certain foreign issuers that are traded in the United States. The Fund's
investments are selected using both a variety of quantitative techniques and
fundamental research in seeking to maximize the Fund's expected return, while
maintaining risk, style, capitalization and industry characteristics similar
to the S&P 500 Index. The Fund seeks a broad representation in most major
sectors of the U.S. economy and a portfolio comprised of companies with
average long-term earnings growth expectations and dividend yields. The Fund's
investments in fixed-income securities are limited to securities that are
considered cash equivalents.
 
  For a description of the investment process of the Fund, see "Investment
Objectives And Policies--Quantitative Style Funds."
 
 CORE LARGE CAP GROWTH FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term growth of capital. The Fund seeks to achieve its objective through a
broadly diversified portfolio of equity securities of large cap U.S. issuers
that are expected to have better prospects for earnings growth than the growth
rate of the general domestic economy. Dividend income is a secondary
consideration.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 90% of its total assets in equity securities of U.S. issuers, including
certain foreign issuers that are traded in the United States. The Investment
Adviser emphasizes a company's growth prospects in analyzing equity securities
to be purchased by the Fund. The Fund's investments are selected using both a
variety of quantitative techniques and fundamental
 
                                      24
<PAGE>
 
research in seeking to maximize the Fund's expected return, while maintaining
risk, style, capitalization and industry characteristics similar to the
Russell 1000 Growth Index. The Fund seeks a portfolio comprised of companies
with above average capitalizations and earnings growth expectations and below
average dividend yields. The Fund's investments in fixed-income securities are
limited to securities that are considered cash equivalents.
 
  For a description of the investment process of the Fund, see "Investment
Objectives and Policies--Quantitative Style Funds."
 
 CORE SMALL CAP EQUITY FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term growth of capital. The Fund seeks to achieve its objective through a
broadly diversified portfolio of equity securities of U.S. issuers which are
included in the Russell 2000 Index at the time of investment.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 90% of its total assets in equity securities of U.S. issuers, including
certain foreign issuers that are traded in the United States. The Fund's
investments are selected using both a variety of quantitative techniques and
fundamental research in seeking to maximize the Fund's expected return, while
maintaining risk, style, capitalization and industry characteristics similar
to the Russell 2000 Index. The Fund seeks a portfolio comprised of companies
with small market capitalizations, strong expected earnings growth and
momentum, and better valuation and risk characteristics than the Russell 2000
Index. The Fund's investments in fixed-income securities are limited to
securities that are considered cash equivalents.
 
  The Investment Adviser believes that the companies in which the Fund may
invest offer greater opportunity for growth of capital than larger, more
mature, better known companies. Investments in small market capitalization
issuers involve special risks. See "Description of Securities" and "Risk
Factors." If the issuer of a portfolio security held by the Fund is no longer
included in the Russell 2000 Index, the Fund may, but is not required to, sell
the security.
 
  For a description of the investment process of the Fund, see "Investment
Objectives and Policies--Quantitative Style Funds."
 
 CAPITAL GROWTH FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term growth of capital.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 90% of its total assets in equity securities. The Fund seeks to achieve
its investment objective by investing in a diversified portfolio of equity
securities that are considered by the Investment Adviser to have long-term
capital appreciation potential.
 
  Other. Although the Fund will invest primarily in publicly traded U.S.
securities, it may invest up to 10% of its total assets in foreign securities,
including securities of issuers in Emerging Countries and securities quoted in
foreign currencies.
 
 MID CAP EQUITY FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term capital appreciation.
 
  Primary Investment Focus. The Fund invests, under normal circumstances,
substantially all of its assets in equity securities and at least 65% of its
total assets in equity securities of Mid-Cap Companies with public stock
 
                                      25
<PAGE>
 
market capitalizations (based upon shares available for trading on an
unrestricted basis) within the range of the market capitalization of companies
constituting the Russell Midcap Index at the time of investment (currently
between $400 million and $16 billion). If the capitalization of an issuer
increases above $16 billion after purchase of such issuer's securities, the
Fund may, but is not required to, sell the securities. Dividend income, if
any, is an incidental consideration.
 
  Other. The Fund may invest up to 35% of its total assets in fixed-income
securities. In addition, although the Fund will invest primarily in publicly
traded U.S. securities, it may invest up to 25% of its total assets in foreign
securities, including securities of issuers in Emerging Countries and
securities quoted in foreign currencies.
 
 SMALL CAP VALUE FUND (FORMERLY, THE "SMALL CAP EQUITY FUND")
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term capital growth.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 65% of its total assets in equity securities of companies with public
stock market capitalizations of $1 billion or less at the time of investment.
Under normal circumstances, the Fund's investment horizon for ownership of
stocks will be two to three years. Dividend income, if any, is an incidental
consideration. If the market capitalization of a company held by the Fund
increases above the amount stated above, the Fund may, consistent with its
investment objective, continue to hold the security.
 
  Small Capitalization Companies. The Fund invests in companies which the
Investment Adviser believes are well managed niche businesses that have the
potential to achieve high or improving returns on capital and/or above average
sustainable growth. The Fund may invest in securities of small market
capitalization companies which may have experienced financial difficulties.
Investments may also be made in companies that are in the early stages of
their life and that the Investment Adviser believes have significant growth
potential. The Investment Adviser believes that the companies in which the
Fund may invest offer greater opportunity for growth of capital than larger,
more mature, better known companies. However, investments in such small market
capitalization companies involve special risks. See "Description of
Securities" and "Risk Factors."
 
  Other. The Fund may invest in the aggregate up to 35% of its total assets in
the equity securities of companies with public stock market capitalizations in
excess of $1 billion at the time of investment and in fixed- income
securities. In addition, although the Fund will invest primarily in publicly
traded U.S. securities, it may invest up to 25% of its total assets in foreign
securities, including securities of issuers in Emerging Countries and
securities quoted in foreign currencies.
 
 
                           DESCRIPTION OF SECURITIES
 
  The Funds may invest in equity and fixed-income securities in accordance
with the investment policies stated above. Certain of these permitted
investments are described in more detail in this section.
 
CONVERTIBLE SECURITIES
 
  Each Fund may invest in convertible securities, including debt obligations
and preferred stock of the issuer convertible at a stated exchange rate into
common stock of the issuer. Convertible securities generally offer lower
interest or dividend yields than non-convertible securities of similar
quality. As with all fixed-income securities,
 
                                      26
<PAGE>
 
the market value of convertible securities tends to decline as interest rates
increase and, conversely, to increase as interest rates decline. However, when
the market price of the common stock underlying a convertible security exceeds
the conversion price, the convertible security tends to reflect the market
price of the underlying common stock. As the market price of the underlying
common stock declines, the convertible security tends to trade increasingly on
a yield basis, and thus may not decline in price to the same extent as the
underlying common stock. Convertible securities rank senior to common stocks
in an issuer's capital structure and consequently entail less risk than the
issuer's common stock. In evaluating a convertible security, the Investment
Adviser will give primary emphasis to the attractiveness of the underlying
common stock. The convertible debt securities in which the Balanced Fund
invests will be rated, at the time of investment, B or better by Standard &
Poor's Ratings Group ("Standard & Poor's") or Moody's Investors Service, Inc.
("Moody's"), or if unrated by such rating organizations, determined to be of
comparable quality by the Investment Adviser. The convertible securities in
which the CORE Funds invest are not subject to any minimum rating criteria.
The convertible debt securities in which the other Funds may invest are
subject to the same rating criteria as a Fund's investments in non-convertible
debt securities. Convertible debt securities are equity investments for
purposes of each Fund's investment policies.
 
FOREIGN INVESTMENTS
 
  FOREIGN SECURITIES. Each Fund may invest in the securities of foreign
issuers (provided that the CORE Funds may only invest in equity securities of
foreign issuers that are traded in the U.S.). Investments in foreign
securities may offer potential benefits that are not available from
investments exclusively in equity securities of domestic issuers quoted in
U.S. dollars. Foreign countries may have economic policies or business cycles
different from those of the U.S. and markets for foreign securities do not
necessarily move in a manner parallel to U.S. markets.
 
  Investing in the securities of foreign issuers involves certain special
risks, including those set forth below, which are not typically associated
with investing in U.S. dollar denominated or quoted securities of U.S.
issuers. Such investments may be affected by changes in currency rates,
changes in foreign or U.S. laws or restrictions applicable to such investments
and in exchange control regulations (e.g., currency blockage). A decline in
the exchange rate of the currency (i.e., weakening of the currency against the
U.S. dollar) in which a portfolio security is quoted or denominated relative
to the U.S. dollar would reduce the value of the portfolio security. In
addition, if the currency in which a Fund receives dividends, interest or
other payments declines in value against the U.S. dollar before such income is
distributed as dividends to shareholders or converted to U.S. dollars, the
Fund may have to sell portfolio securities to obtain sufficient cash to pay
such dividends. The introduction of a single currency, the euro, on January 1,
1999 for participating European nations in the Economic and Monetary Union
("EU") presents unique uncertainties, including whether the payment and
operational systems of banks and other financial institutions will encounter
difficulties; the creation of suitable clearing and settlement payment systems
for the new currency; the legal treatment of certain outstanding financial
contracts after January 1, 1999 that refer to existing currencies rather than
the euro; the establishment and maintenance of exchange rates for currencies
being converted into the euro and the euro; the fluctuation of the euro
relative to non-euro currencies during the transition period from January 1,
1999 to December 31, 2001 and beyond; whether the interest rate, tax and labor
regimes of European countries participating in the euro will converge over
time; and whether the conversion of the currencies of other EU countries such
as the United Kingdom and Denmark into the euro and the admission of other
non-EU countries such as Poland, Latvia and Lithuania as members of the EU may
have an impact on the euro. These or other factors, including political and
economic risks, could cause market disruptions before or after the
introduction of the euro, and could adversely affect the value of securities
and foreign currencies held by the Funds. Commissions on transactions in
foreign securities may be higher than those
 
                                      27
<PAGE>
 
for similar transactions on domestic stock markets. In addition, clearance and
settlement procedures may be different in foreign countries and, in certain
markets, such procedures have been unable to keep pace with the volume of
securities transactions, thus making it difficult to conduct such
transactions.
 
  Foreign issuers are not generally subject to uniform accounting, auditing
and financial reporting standards comparable to those applicable to U.S.
issuers. There may be less publicly available information about a foreign
issuer than about a U.S. issuer. In addition, there is generally less
government regulation of foreign markets, companies and securities dealers
than in the United States. Foreign securities markets may have substantially
less volume than U.S. securities markets and securities of many foreign
issuers are less liquid and more volatile than securities of comparable
domestic issuers. Furthermore, with respect to certain foreign countries,
there is a possibility of nationalization, expropriation or confiscatory
taxation, imposition of withholding or other taxes on dividend or interest
payments (or, in some cases, capital gains), limitations on the removal of
funds or other assets of the Funds, political or social instability or
diplomatic developments which could affect investments in those countries.
 
  INVESTMENTS IN ADRS, EDRS AND GDRS. Each Fund may invest in foreign
securities which take the form of sponsored and unsponsored American
Depository Receipts ("ADRs") and Global Depository Receipts ("GDRs") and each
Fund, other than the CORE Funds, may also invest in European Depository
Receipts ("EDRs") or other similar instruments representing securities of
foreign issuers (together, "Depository Receipts"). ADRs represent the right to
receive securities of foreign issuers deposited in a domestic bank or a
correspondent bank. Prices of ADRs are quoted in U.S. dollars, and ADRs are
traded in the United States on exchanges or over-the-counter and are sponsored
and issued by domestic banks. EDRs and GDRs are receipts evidencing an
arrangement with a non-U.S. bank. EDRs and GDRs are not necessarily quoted in
the same currency as the underlying security. To the extent a Fund acquires
Depository Receipts through banks which do not have a contractual relationship
with the foreign issuer of the security underlying the Depository Receipts to
issue and service such Depository Receipts (unsponsored Depository Receipts),
there may be an increased possibility that the Fund would not become aware of
and be able to respond to corporate actions, such as stock splits or rights
offerings involving the foreign issuer, in a timely manner. In addition, the
lack of information may result in inefficiencies in the valuation of such
instruments. Investment in Depository Receipts does not eliminate all the
risks inherent in investing in securities of non-U.S. issuers. The market
value of Depository Receipts is dependent upon the market value of the
underlying securities and fluctuations in the relative value of the currencies
in which the Depository Receipt and the underlying securities are quoted.
However, by investing in Depository Receipts, such as ADRs, that are quoted in
U.S. dollars, a Fund may avoid currency risks during the settlement period for
purchases and sales.
 
  FOREIGN CURRENCY TRANSACTIONS. Because investment in foreign issuers will
usually involve currencies of foreign countries, and because the Balanced Fund
may have currency exposure independent of its securities positions, the value
of the assets of a Fund as measured in U.S. dollars will be affected by
changes in foreign currency exchange rates. A Fund may, to the extent it
invests in foreign securities, purchase or sell foreign currencies on a spot
basis and may also purchase or sell forward foreign currency exchange
contracts for hedging purposes and to seek to protect against anticipated
changes in future foreign currency exchange rates. In addition, the Balanced
Fund may enter into such contracts to seek to increase total return when the
Investment Adviser anticipates that the foreign currency will appreciate or
depreciate in value, but securities denominated or quoted in that currency do
not present attractive investment opportunities and are not held in the Fund's
portfolio. When entered into to seek to enhance return, forward foreign
currency exchange contracts are considered speculative. The Balanced Fund may
also engage in cross-hedging by using forward contracts in a currency
different from that in which the hedged security is denominated or quoted if
the Investment Adviser determines that there is a
 
                                      28
<PAGE>
 
pattern of correlation between the two currencies. If a Fund enters into a
forward foreign currency exchange contract to buy foreign currency for any
purpose or the Balanced Fund enters into forward foreign currency exchange
contracts to sell foreign currency to seek to increase total return, the Fund
will segregate cash or liquid assets in an amount equal to the value of the
Fund's total assets committed to the consummation of the forward contract, or
otherwise cover its position in a manner permitted by the SEC. The Fund will
incur costs in connection with conversions between various currencies. A Fund
may hold foreign currency received in connection with investments in foreign
securities when, in the judgment of the Investment Adviser, it would be
beneficial to convert such currency into U.S. dollars at a later date, based
on anticipated changes in the relevant exchange rate.
 
  Currency exchange rates may fluctuate significantly over short periods of
time causing, along with other factors, a Fund's NAV to fluctuate. Currency
exchange rates generally are determined by the forces of supply and demand in
the foreign exchange markets and the relative merits of investments in
different countries, actual or anticipated changes in interest rates and other
complex factors, as seen from an international perspective. Currency exchange
rates also can be affected unpredictably by the intervention of U.S. or
foreign governments or central banks, or the failure to intervene, or by
currency controls or political developments in the U.S. or abroad. To the
extent that a substantial portion of a Fund's total assets, adjusted to
reflect the Fund's net position after giving effect to currency transactions,
is denominated or quoted in the currencies of foreign countries, the Fund will
be more susceptible to the risk of adverse economic and political developments
within those countries.
 
  The market in forward foreign currency exchange contracts, currency swaps
and other privately negotiated currency instruments offers less protection
against defaults by the other party to such instruments than is available for
currency instruments traded on an exchange. Such contracts are subject to the
risk that the counterparty to the contract will default on its obligations.
Since these contracts are not guaranteed by an exchange or clearinghouse, a
default on the contract would deprive the Fund of unrealized profits,
transaction costs or the benefits of a currency hedge or force the Fund to
cover its purchase or sale commitments, if any, at the current market price. A
Fund will not enter into forward foreign currency exchange contracts, currency
swaps or other privately negotiated currency instruments unless the credit
quality of the unsecured senior debt or the claims-paying ability of the
counterparty is considered to be investment grade by the Investment Adviser.
 
  The Balanced Fund may also engage in a variety of foreign currency
management techniques. For a discussion of such instruments and the risks
associated with their use, see "Investment Objective and Policies" in the
Additional Statement.
 
FIXED-INCOME SECURITIES
 
  U.S. GOVERNMENT SECURITIES. Each Fund may invest in U.S. Government
securities. Generally, these securities include U.S. Treasury obligations and
obligations issued or guaranteed by U.S. Government agencies,
instrumentalities or sponsored enterprises. U.S. Government securities also
include Treasury receipts and other stripped U.S. Government securities, where
the interest and principal components of stripped U.S. Government securities
are traded independently. A Fund may also invest in zero coupon U.S. Treasury
securities and in zero coupon securities issued by financial institutions,
which represent a proportionate interest in underlying U.S. Treasury
securities. A zero coupon security pays no interest to its holder during its
life and its value consists of the difference between its face value at
maturity and its cost. The market prices of zero coupon securities generally
are more volatile than the market prices of securities that pay interest
periodically. See "Taxation" in the Additional Statement.
 
                                      29
<PAGE>
 
  FOREIGN GOVERNMENT SECURITIES. The Balanced Fund may invest in debt
obligations of foreign governments and governmental agencies, including those
of Emerging Countries. Investment in sovereign debt obligations involves
special risks not present in debt obligations of corporate issuers. The issuer
of the debt or the governmental authorities that control the repayment of the
debt may be unable or unwilling to repay principal or interest when due in
accordance with the terms of such debt, and the Fund may have limited recourse
in the event of a default. Periods of economic uncertainty may result in the
volatility of market prices of sovereign debt, and in turn the Fund's NAV, to
a greater extent than the volatility inherent in debt obligations of U.S.
issuers. A sovereign debtor's willingness or ability to repay principal and
pay interest in a timely manner may be affected by, among other factors, its
cash flow situation, the extent of its foreign currency reserves, the
availability of sufficient foreign exchange on the date a payment is due, the
relative size of the debt service burden to the economy as a whole, the
sovereign debtor's policy toward international lenders and the political
constraints to which a sovereign debtor may be subject.
 
  MORTGAGE-BACKED AND ASSET-BACKED SECURITIES. Each Fund (other than the CORE
Funds) may invest in mortgage-backed securities ("Mortgage-Backed
Securities"), which represent direct or indirect participations in, or are
collateralized by and payable from, mortgage loans secured by real property.
Each Fund (other than the CORE Funds) may also invest in asset-backed
securities ("Asset-Backed Securities"). The principal and interest payments on
Asset-Backed Securities are collateralized by pools of assets such as auto
loans, credit card receivables, leases, installment contracts and personal
property. Such asset pools are securitized through the use of special purpose
trusts or corporations. Principal and interest payments may be credit enhanced
by a letter of credit, a pool insurance policy or a senior/subordinated
structure.
 
  The Balanced Fund may also invest in stripped Mortgage-Backed Securities
("SMBS") (including interest only and principal only securities), which are
derivative multiple class Mortgage-Backed Securities. SMBS are usually
structured with two different classes: one that receives 100% of the interest
payments and the other that receives 100% of the principal payments from a
pool of mortgage loans. If the underlying mortgage loans experience different
than anticipated prepayments of principal, the Fund may fail to recoup fully
its initial investment in these securities. The market value of the class
consisting entirely of principal payments generally is unusually volatile in
response to changes in interest rates. The yields on a class of SMBS that
receives all or most of the interest from mortgage loans are generally higher
than prevailing market yields on other Mortgage-Backed Securities because
their cash flow patterns are more volatile and there is a greater risk that
the initial investment will not be fully recouped. The Fund's investments in
SMBS may require the Fund to sell portfolio securities to generate sufficient
cash to satisfy certain income distribution requirements.
 
  CORPORATE DEBT OBLIGATIONS. Each Fund may invest in corporate debt
obligations. Corporate debt obligations are subject to the risk of an issuer's
inability to meet principal and interest payments on the obligations.
 
  BANK OBLIGATIONS. Each Fund may invest in obligations issued or guaranteed
by U.S. or foreign banks. Bank obligations, including without limitations,
time deposits, bankers' acceptances and certificates of deposit, may be
general obligations of the parent bank or may be limited to the issuing branch
by the terms of the specific obligations or by government regulation. Banks
are subject to extensive but different governmental regulations which may
limit both the amount and types of loans which may be made and interest rates
which may be charged. In addition, the profitability of the banking industry
is largely dependent upon the availability and cost of funds for the purpose
of financing lending operations under prevailing money market conditions.
General economic conditions as well as exposure to credit losses arising from
possible financial difficulties of borrowers play an important part in the
operation of this industry.
 
                                      30
<PAGE>
 
  STRUCTURED SECURITIES. Each Fund may invest in structured securities. The
value of the principal of and/or interest on such securities is determined by
reference to changes in the value of specific currencies, interest rates,
commodities, indices or other financial indicators (the "Reference") or the
relative change in two or more References. The interest rate or the principal
amount payable upon maturity or redemption may be increased or decreased
depending upon changes in the applicable Reference. The terms of the
structured securities may provide that in certain circumstances no principal
is due at maturity and, therefore, result in the loss of a Fund's investment.
Structured securities may be positively or negatively indexed, so that
appreciation of the Reference may produce an increase or decrease in the
interest rate or value of the security at maturity. In addition, changes in
the interest rates or the value of the security at maturity may be a multiple
of changes in the value of the Reference. Consequently, structured securities
may entail a greater degree of market risk than other types of fixed-income
securities. Structured securities may also be more volatile, less liquid and
more difficult to price accurately than less complex securities.
 
  RATING CRITERIA. Except as noted below, each Fund (other than the CORE
Funds, which only invest in debt instruments that are cash equivalents) may
invest in debt securities rated at least investment grade at the time of
investment. Investment grade debt securities are securities rated BBB or
higher by Standard & Poor's or Baa or higher by Moody's. A security will be
deemed to have met a rating requirement if it receives the minimum required
rating from at least one such rating organization even though it has been
rated below the minimum rating by one or more other rating organizations, or
if unrated by such rating organizations, determined by the Investment Adviser
to be of comparable credit quality. The Balanced Fund may invest up to 10% of
its total assets in debt securities that are rated BB or B by Standard &
Poor's or Ba or B by Moody's. The Growth and Income, Capital Growth and Small
Cap Value Funds may invest up to 10%, 10% and 35%, respectively, of their
total assets in debt securities which are unrated or rated in the lowest
rating categories by Standard & Poor's or Moody's (i.e., BB or lower by
Standard & Poor's or Ba or lower by Moody's), including securities rated D by
Moody's or Standard & Poor's. Mid Cap Equity Fund may invest up to 10% of its
total assets in below investment grade debt securities rated B or higher by
Standard & Poor's or B or higher by Moody's. Fixed- income securities rated
BBB or Baa are considered medium-grade obligations with speculative
characteristics, and adverse economic conditions or changing circumstances may
weaken their issuers' capacity to pay interest and repay principal. Fixed-
income securities rated BB or Ba or below (or comparable unrated securities)
are commonly referred to as "junk bonds" and are considered predominantly
speculative and may be questionable as to principal and interest payments. In
some cases, such bonds may be highly speculative, have poor prospects for
reaching investment grade standing and be in default. As a result, investment
in such bonds will entail greater speculative risks than those associated with
investment in investment grade bonds. Also, to the extent that the rating
assigned to a security in a Fund's portfolio is downgraded by a rating
organization, the market price and liquidity of such security may be adversely
affected. See Appendix A to the Additional Statement for a description of the
corporate bond ratings assigned by Standard & Poor's and Moody's.
 
REAL ESTATE INVESTMENT TRUSTS ("REITS")
 
  Each Fund may invest in REITs, which are pooled investment vehicles that
invest primarily in either real estate or real estate related loans. The value
of a REIT is affected by changes in the value of the properties owned by the
REIT or securing mortgage loans held by the REIT. REITs are dependent upon
cash flow from their investments to repay financing costs and the ability of
the REITs' manager. REITs are also subject to risks generally associated with
investments in real estate. A Fund will indirectly bear its proportionate
share of any expenses, including management fees, paid by a REIT in which it
invests.
 
                                      31
<PAGE>
 
 
                             INVESTMENT TECHNIQUES
 
OPTIONS ON SECURITIES AND SECURITIES INDICES
 
  Each Fund (other than the CORE Large Cap Value, CORE U.S. Equity and CORE
Large Cap Growth Funds) may write (sell) covered call and put options and
purchase call and put options on any securities in which it may invest or on
any securities index composed of securities in which it may invest. The
writing and purchase of options is a highly specialized activity which
involves investment techniques and risks different from those associated with
ordinary portfolio securities transactions. The use of options to seek to
increase total return involves the risk of loss if the Investment Adviser is
incorrect in its expectation of fluctuations in securities prices or interest
rates. The successful use of options for hedging purposes also depends in part
on the ability of the Investment Adviser to manage future price fluctuations
and the degree of correlation between the options and securities markets. If
the Investment Adviser is incorrect in its expectation of changes in
securities prices or determination of the correlation between the securities
indices on which options are written and purchased and the securities in a
Fund's investment portfolio, the investment performance of the Fund will be
less favorable than it would have been in the absence of such options
transactions. The writing of options could significantly increase a Fund's
portfolio turnover rate and, therefore, associated brokerage commissions or
spreads.
 
OPTIONS ON FOREIGN CURRENCIES
 
  A Fund may, to the extent it invests in foreign securities, purchase and
sell (write) call and put options on foreign currencies for the purpose of
protecting against declines in the U.S. dollar value of foreign portfolio
securities and anticipated dividends on such securities and against increases
in the U.S. dollar cost of foreign securities to be acquired. In addition, the
Balanced Fund may use options on currency to cross-hedge, which involves
writing or purchasing options on one currency to hedge against changes in
exchange rates for a different currency, if there is a pattern of correlation
between the two currencies. As with other kinds of options transactions,
however, the writing of an option on a foreign currency will constitute only a
partial hedge, up to the amount of the premium received. If an option that a
Fund has written is exercised, the Fund could be required to purchase or sell
foreign currencies at disadvantageous exchange rates, thereby incurring
losses. The purchase of an option on foreign currency may constitute an
effective hedge against exchange rate fluctuations; however, in the event of
exchange rate movements adverse to a Fund's position, the Fund may forfeit the
entire amount of the premium plus related transaction costs. In addition to
purchasing put and call options for hedging purposes, the Balanced Fund may
purchase call or put options on currency to seek to increase total return when
the Investment Adviser anticipates that the currency will appreciate or
depreciate in value, but the securities quoted or denominated in that currency
do not present attractive investment opportunities and are not held in the
Fund's portfolio. When purchased or sold to seek to increase total return,
options on currencies are considered speculative. Options on foreign
currencies written or purchased by the Funds are traded on U.S. and foreign
exchanges or over-the-counter.
 
FUTURES CONTRACTS AND OPTIONS ON FUTURES CONTRACTS
 
  To seek to increase total return or to hedge against changes in interest
rates, securities prices or currency exchange rates, a Fund may purchase and
sell various kinds of futures contracts, and purchase and write call and put
options on any of such futures contracts. Each Fund may also enter into
closing purchase and sale transactions with respect to any such contracts and
options. The futures contracts may be based on various securities (such as
U.S. Government securities), foreign currencies, securities indices and other
financial
 
                                      32
<PAGE>
 
instruments and indices. The CORE Large Cap Value, CORE U.S. Equity and CORE
Large Cap Growth Funds may enter into such transactions only with respect to
the S&P 500 Index in the case of the CORE U.S. Equity Fund and a
representative index in the case of the CORE Large Cap Value and CORE Large
Cap Growth Funds. A Fund will engage in futures and related options
transactions for bona fide hedging purposes as defined in regulations of the
Commodity Futures Trading Commission or to seek to increase total return to
the extent permitted by such regulations. A Fund may not purchase or sell
futures contracts or purchase or sell related options to seek to increase
total return, except for closing purchase or sale transactions, if immediately
thereafter the sum of the amount of initial margin deposits and premiums paid
on the Fund's outstanding positions in futures and related options entered
into for the purpose of seeking to increase total return would exceed 5% of
the market value of the Fund's net assets. These transactions involve
brokerage costs, require margin deposits and, in the case of contracts and
options obligating a Fund to purchase securities or currencies, require the
Fund to segregate and maintain cash or liquid assets with a value equal to the
amount of the Fund's obligations or to otherwise cover the obligations in a
manner permitted by the SEC.
 
  While transactions in futures contracts and options on futures may reduce
certain risks, such transactions themselves entail certain other risks. See
"Investment Objectives and Policies--Futures Contracts and Options on Futures
Contracts" in the Additional Statement. Thus, while a Fund may benefit from
the use of futures and options on futures, unanticipated changes in interest
rates, securities prices or currency exchange rates may result in poorer
overall performance than if the Fund had not entered into any futures
contracts or options transactions. Because perfect correlation between a
futures position and portfolio position that is intended to be protected is
impossible to achieve, the desired protection may not be obtained and a Fund
may be exposed to risk of loss. The loss incurred by a Fund in entering into
futures contracts and in writing call options on futures is potentially
unlimited and may exceed the amount of the premium received. Futures markets
are highly volatile and the use of futures may increase the volatility of a
Fund's NAV. The profitability of a Fund's trading in futures to seek to
increase total return depends upon the ability of the Investment Adviser to
analyze correctly the futures markets. In addition, because of the low margin
deposits normally required in futures trading, a relatively small price
movement in a futures contract may result in substantial losses to a Fund.
Further, futures contracts and options on futures may be illiquid, and
exchanges may limit fluctuations in futures contract prices during a single
day. The Funds may engage in futures transactions on both U.S. and foreign
exchanges. Foreign exchanges may not provide the same protection as U.S.
exchanges.
 
STANDARD AND POOR'S DEPOSITORY RECEIPTS
 
  Each Fund may, consistent with its objectives, purchase Standard & Poor's
Depository Receipts ("SPDRs"). SPDRs are American Stock Exchange-traded
securities that represent ownership in the SPDR Trust, a trust which has been
established to accumulate and hold a portfolio of common stocks that is
intended to track the price performance and dividend yield of the S&P 500.
This trust is sponsored by a subsidiary of the American Stock Exchange. SPDRs
may be used for several reasons, including but not limited to: facilitating
the handling of cash flows or trading, or reducing transaction costs. The use
of SPDRs would introduce additional risk to the Fund as the price movement of
the instrument does not perfectly correlate with the price action of the
underlying index.
 
EQUITY SWAPS
 
  Each Fund may invest up to 10% of its total assets in equity swaps. Equity
swaps allow the parties to a swap agreement to exchange the dividend income or
other components of return on an equity investment (e.g., a group of equity
securities or an index) for a component of return on another non-equity or
equity investment. An equity swap may be used by a Fund to invest in a market
without owning or taking physical custody of securities
 
                                      33
<PAGE>
 
in circumstances in which direct investment may be restricted for legal
reasons or is otherwise impractical. Equity swaps are derivatives and their
value can be very volatile. To the extent that the Investment Adviser does not
accurately analyze and predict the potential relative fluctuation of the
components swapped with another party, a Fund may suffer a loss. The value of
some components of an equity swap (such as the dividends on a common stock)
may also be sensitive to changes in interest rates. Furthermore, during the
period a swap is outstanding, a Fund may suffer a loss if the counterparty
defaults. In connection with its investments in equity swaps, a Fund will
either segregate cash or liquid assets or otherwise cover its obligations in a
manner required by the SEC.
 
WHEN-ISSUED SECURITIES AND FORWARD COMMITMENTS
 
  Each Fund may purchase when-issued securities. When-issued transactions
arise when securities are purchased by a Fund with payment and delivery taking
place in the future in order to secure what is considered to be an
advantageous price and yield to the Fund at the time of entering into the
transaction. Each Fund may also purchase or sell securities on a forward
commitment basis; that is, make contracts to purchase or sell securities for a
fixed price at a future date beyond the customary three-day settlement period.
The purchase of securities on a when-issued or forward commitment basis
involves a risk of loss if the value of the security to be purchased declines
prior to the settlement date. Conversely, securities sold on a forward
commitment basis involve the risk that the value of the securities to be sold
may increase prior to the settlement date. Although a Fund would generally
purchase securities on a when-issued or forward commitment basis with the
intention of acquiring securities for its portfolio, a Fund may dispose of
when-issued securities or forward commitments prior to settlement if the
Investment Adviser deems it appropriate to do so. A Fund will segregate cash
or liquid assets in an amount sufficient to meet the purchase price until
three days prior to the settlement date. Alternatively, each Fund may enter
into offsetting contracts for the forward sale of other securities that it
owns.
 
ILLIQUID AND RESTRICTED SECURITIES
 
  A Fund will not invest more than 15% of its net assets in illiquid
investments, which include securities (both foreign and domestic) that are not
readily marketable, certain SMBS, repurchase agreements maturing in more than
seven days, time deposits with a notice or demand period of more than seven
days, certain over-the-counter options, and certain restricted securities,
unless it is determined, based upon a review of the trading markets for a
specific restricted security, that such restricted security is eligible for
resale pursuant to Rule 144A under the Securities Act of 1933 and, therefore,
is liquid. The Trustees have adopted guidelines under which the Investment
Adviser determines and monitors the liquidity of portfolio securities, subject
to the oversight of the Trustees. Investing in restricted securities eligible
for resale pursuant to Rule 144A may decrease the liquidity of a Fund's
portfolio to the extent that qualified institutional buyers become for a time
uninterested in purchasing these restricted securities. The purchase price and
subsequent valuation of restricted and illiquid securities normally reflect a
discount, which may be significant, from the market price of comparable
securities for which a liquid market exists.
 
REPURCHASE AGREEMENTS
 
  Each Fund may enter into repurchase agreements with dealers in U.S.
Government securities and member banks of the Federal Reserve System which
furnish collateral at least equal in value or market price to the amount of
their repurchase obligation. The Balanced Fund may also enter into repurchase
agreements involving certain foreign government securities. If the other party
or "seller" defaults, a Fund might suffer a loss to the extent that the
proceeds from the sale of the underlying securities and other collateral held
by the Fund in connection
 
                                      34
<PAGE>
 
with the related repurchase agreement are less than the repurchase price. In
addition, in the event of bankruptcy of the seller or failure of the seller to
repurchase the securities as agreed, a Fund could suffer losses, including
loss of interest on or principal of the security and costs associated with
delay and enforcement of the repurchase agreement. The Trustees have reviewed
and approved certain counterparties whom they believe to be creditworthy and
have authorized the Funds to enter into repurchase agreements with such
counterparties. In addition, each Fund, together with other registered
investment companies having management agreements with an Investment Adviser
or its affiliates, may transfer uninvested cash balances into a single joint
account, the daily aggregate balance of which will be invested in one or more
repurchase agreements.
 
LENDING OF PORTFOLIO SECURITIES
 
  Each Fund may seek to increase its income by lending portfolio securities.
Under present regulatory policies, such loans may be made to institutions,
such as certain broker-dealers, and are required to be secured continuously by
collateral in cash, cash equivalents, or U.S. Government securities maintained
on a current basis in an amount at least equal to the market value of the
securities loaned. Cash collateral may be invested in cash equivalents. If the
Investment Adviser determines to make securities loans, the value of the
securities loaned may not exceed 33 1/3% of the value of the total assets of a
Fund (including the loan collateral). A Fund may experience a loss or delay in
the recovery of its securities if the institution with which it has engaged in
a portfolio loan transaction breaches its agreement with the Fund.
 
MORTGAGE DOLLAR ROLLS
 
  The Balanced Fund may enter into mortgage "dollar rolls" in which the Fund
sells securities for delivery in the current month and simultaneously
contracts with the same counterparty to repurchase substantially similar (same
type, coupon and maturity) but not identical securities on a specified future
date. During the roll period, the Fund loses the right to receive principal
and interest paid on the securities sold. However, the Fund would benefit to
the extent of any difference between the price received for the securities
sold and the lower forward price for the future purchase or fee income plus
the interest earned on the cash proceeds of the securities sold until the
settlement date for the forward purchase. Unless such benefits exceed the
income, capital appreciation and gain or loss due to mortgage prepayments that
would have been realized on the securities sold as part of the mortgage dollar
roll, the use of this technique will diminish the investment performance of
the Fund. The Fund will segregate cash or liquid assets in an amount equal to
the forward purchase price until the settlement date. Successful use of
mortgage dollar rolls depends upon the Investment Adviser's ability to predict
correctly interest rates and mortgage prepayments. There is no assurance that
mortgage dollar rolls can be successfully employed. For financial reporting
and tax purposes, the Fund treats mortgage dollar rolls as two separate
transactions: one involving the purchase of a security and a separate
transaction involving a sale. The Fund does not currently intend to enter into
mortgage dollar rolls that are accounted for as a financing.
 
SHORT SALES AGAINST-THE-BOX
 
  Each Fund (other than the CORE Funds) may make short sales of securities or
maintain a short position, provided that at all times when a short position is
open the Fund owns an equal amount of such securities or securities
convertible into or exchangeable for, without payment of any further
consideration, an equal amount of the securities of the same issuer as the
securities sold short (a short sale against-the-box). Not more than 25% of a
Fund's net assets (determined at the time of the short sale) may be subject to
such short sales. As a result of recent tax legislation, short sales may not
generally be used to defer the recognition of gain for tax purposes with
respect to appreciated securities in a Fund's portfolio.
 
                                      35
<PAGE>
 
TEMPORARY INVESTMENTS
 
  Each Fund may, for temporary defensive purposes, invest 100% of its total
assets (except that the CORE Funds may only hold up to 35% of their respective
total assets) in U.S. Government securities, repurchase agreements
collateralized by U.S. Government securities, commercial paper rated at least
A-2 by Standard & Poor's or P-2 by Moody's, certificates of deposit, bankers'
acceptances, repurchase agreements, non-convertible preferred stocks and non-
convertible corporate bonds with a remaining maturity of less than one year.
When a Fund's assets are invested in such instruments, the Fund may not be
achieving its investment objective.
 
MISCELLANEOUS TECHNIQUES
 
  In addition to the techniques and investments described above, each Fund
may, with respect to no more than 5% of its net assets, engage in the
following techniques and investments: (i) warrants and stock purchase rights;
(ii) currency swaps (Balanced Fund only); (iii) credit swaps, mortgage swaps,
index swaps and interest rate swaps, caps, floors and collars (Balanced Fund
only); (iv) yield curve options and inverse floating rate securities (Balanced
Fund only); (v) other investment companies including World Equity Benchmark
Shares; (vi) unseasoned companies; (vii) municipal securities (Balanced Fund
only); (viii) loan participations (Balanced Fund only); (ix) custodial
receipts; and (x) reverse repurchase agreements for investment purposes
(Balanced Fund only).
 
  In addition, each Fund may borrow up to 33 1/3% of its total assets from
banks for temporary or emergency purposes. A Fund may not make additional
investments if borrowings (excluding covered mortgage dollar rolls) exceed 5%
of its total assets. For more information, see the Additional Statement.
 
 
                                 RISK FACTORS
 
  RISKS OF INVESTING IN EQUITY SECURITIES. In general, the Funds are subject
to the risks associated with investments in common stocks and other equity
securities. Stock values fluctuate in response to the activities of individual
companies and in response to general market and economic conditions and,
accordingly, the value of the stocks that a Fund holds may decline over short
or extended periods. The U.S. stock markets tend to be cyclical, with periods
when stock prices generally rise and periods when prices generally decline. As
of the date of this Prospectus, domestic stock markets were trading at or
close to record high levels and there can be no guarantee that such levels
will continue.
 
  RISKS OF INVESTING IN SMALL CAPITALIZATION COMPANIES. Investing in the
securities of such companies involves greater risk and the possibility of
greater portfolio price volatility. Historically, small market capitalization
stocks and stocks of recently organized companies have been more volatile in
price than the larger market capitalization stocks. Among the reasons for the
greater price volatility of these small company and unseasoned stocks are the
less certain growth prospects of smaller firms and the lower degree of
liquidity in the markets for such stocks.
 
  SPECIAL RISKS OF INVESTMENTS IN EMERGING MARKETS. Investing in the
securities of issuers in Emerging Countries involves risks in addition to
those discussed under "Description of Securities-- Foreign Investments." The
Growth and Income, Mid Cap Equity and Small Cap Value Funds may each invest up
to 25%, the Balanced Fund may invest up to 20% and the Capital Growth Fund may
invest up to 10% of their respective total assets in securities of issuers in
Emerging Countries. Emerging Countries are generally located in the Asia-
Pacific region, Eastern Europe, Latin and South America and Africa.
 
                                      36
<PAGE>
 
  Foreign investment in the securities markets of certain Emerging Countries
is restricted or controlled to varying degrees which may limit investment in
such countries or increase the administrative costs of such investments.
Certain countries may restrict or prohibit investment opportunities in issuers
or industries deemed important to national interests. Such restrictions may
affect the market price, liquidity and rights of securities that may be
purchased by a Fund. The repatriation of both investment income and capital
from certain Emerging Countries is subject to restrictions such as the need
for governmental consents. Many Emerging Countries may be subject to a greater
degree of economic, political and social instability than is the case in
Western Europe, the United States, Canada, Australia, New Zealand and Japan.
Many Emerging Countries do not have fully democratic governments. For example,
governments of some Emerging Countries are authoritarian in nature or have
been installed or removed as a result of military coups, while governments in
other Emerging Countries have periodically used force to suppress civil
dissent. Many Emerging Countries have experienced currency devaluations and
substantial and, in some cases, extremely high rates of inflation, which have
a negative effect on the economies and securities markets of such Emerging
Countries. Settlement procedures in Emerging Countries are frequently less
developed and reliable than those in the United States and may involve a
Fund's delivery of securities before receipt of payment for their sale. In
addition, significant delays are common in certain markets in registering the
transfer of securities. Settlement or registration problems may make it more
difficult for a Fund to value its portfolio securities and could cause the
Fund to miss attractive investment opportunities, to have a portion of its
assets uninvested or to incur losses due to the failure of a counterparty to
pay for securities the Fund has delivered or the Fund's inability to complete
its contractual obligations.
 
  RISKS OF INVESTING IN FIXED-INCOME SECURITIES. When interest rates decline,
the market value of fixed- income securities tends to increase. Conversely,
when interest rates increase, the market value of fixed-income securities
tends to decline. Volatility of a security's market value will differ
depending upon the security's duration, the issuer and the type of instrument.
Investments in fixed-income securities are subject to the risk that the issuer
could default on its obligations and a Fund could sustain losses on such
investments. A default could impact both interest and principal payments.
 
  RISKS OF DERIVATIVE TRANSACTIONS. A Fund's transactions, if any, in options,
futures, options on futures, swaps, structured securities and currency
transactions involve certain risks, including a possible lack of correlation
between changes in the value of hedging instruments and the portfolio assets
(if any) being hedged, the potential illiquidity of the markets for derivative
instruments, the risks arising from margin requirements and related leverage
factors associated with such transactions. The use of these management
techniques to seek to increase total return may be regarded as a speculative
practice and involves the risk of loss if the Investment Adviser is incorrect
in its expectation of fluctuations in securities prices, interest rates or
currency prices. A Fund's use of certain derivative transactions may be
limited by the requirements of the Internal Revenue Code of 1986, as amended
(the "Code"), for qualification as a regulated investment company.
 
 
                            INVESTMENT RESTRICTIONS
 
  Each Fund is subject to certain investment restrictions that are described
in detail under "Investment Restrictions" in the Additional Statement.
Fundamental investment restrictions of a Fund cannot be changed without
approval of a majority of the outstanding Shares of that Fund as defined in
the Additional Statement. Each Fund's investment objectives and all policies
not specifically designated as fundamental are non-fundamental and may be
changed without shareholder approval. If there is a change in a Fund's
investment
 
                                      37
<PAGE>
 
objectives, shareholders should consider whether that Fund remains an
appropriate investment in light of their then current financial positions and
needs.
 
 
                              PORTFOLIO TURNOVER
 
  A high rate of portfolio turnover (100% or more) involves correspondingly
greater expenses which must be borne by a Fund and its shareholders. See
"Financial Highlights" for a statement of each Fund's historical portfolio
turnover rate (other than the CORE Large Cap Value Fund). It is anticipated
that the annual portfolio turnover rate of the CORE Large Cap Value Fund will
generally not exceed 75%. The portfolio turnover rate is calculated by
dividing the lesser of the dollar amount of sales or purchases of portfolio
securities by the average monthly value of a Fund's portfolio securities,
excluding securities having a maturity at the date of purchase of one year or
less. The Investment Adviser will not consider the portfolio turnover rate a
limiting factor in making investment decisions for a Fund consistent with the
Fund's investment objectives and portfolio management policies.
 
 
                                  MANAGEMENT
 
TRUSTEES AND OFFICERS
 
  The Trustees are responsible for deciding matters of general policy and
reviewing the actions of the Investment Adviser, Distributor and transfer
agent. The officers of the Trust conduct and supervise each Fund's daily
business operations. The Additional Statement contains information as to the
identity of, and other information about, the Trustees and officers of the
Trust.
 
INVESTMENT ADVISERS
 
  INVESTMENT ADVISERS. Goldman Sachs Asset Management, One New York Plaza,
New York, New York 10004, a separate operating division of Goldman Sachs,
serves as investment adviser to the Balanced, Growth and Income, CORE Large
Cap Value, CORE Large Cap Growth, CORE Small Cap Equity, Mid Cap Equity and
Small Cap Value Funds. Goldman Sachs registered as an investment adviser in
1981. Goldman Sachs Funds Management, L.P., One New York Plaza, New York,
New York 10004, a Delaware limited partnership which is an affiliate of
Goldman Sachs, serves as the investment adviser to the CORE U.S. Equity and
Capital Growth Funds. Goldman Sachs Funds Management, L.P. registered as an
investment adviser in 1990. As of November 20, 1998, GSAM and GSFM, together
with their affiliates, acted as investment adviser or distributor for assets
in excess of $188 billion.
 
  Under a Management Agreement with each Fund, the applicable Investment
Adviser, subject to the general supervision of the Trustees, provides day-to-
day advice as to the Fund's portfolio transactions. Goldman Sachs has agreed
to permit the Funds to use the name "Goldman Sachs" or a derivative thereof as
part of each Fund's name for as long as a Fund's Management Agreement is in
effect.
 
  In performing its investment advisory services, each Investment Adviser,
while remaining ultimately responsible for the management of the Funds, is
able to draw upon the research and expertise of its asset management
affiliates for portfolio decisions and management with respect to certain
portfolio securities. In addition, the Investment Adviser will have access to
the research of, and certain proprietary technical models developed by,
Goldman Sachs and may apply quantitative and qualitative analysis in
determining the appropriate allocations among the categories of issuers and
types of securities.
 
  Under the Management Agreement, the Investment Adviser also: (i) supervises
all non-advisory operations of each Fund that it advises; (ii) provides
personnel to perform such executive, administrative and clerical
 
                                      38
<PAGE>
 
services as are reasonably necessary to provide effective administration of
each Fund; (iii) arranges for at each Fund's expense (a) the preparation of
all required tax returns, (b) the preparation and submission of reports to
existing shareholders, (c) the periodic updating of prospectuses and
Additional Statements and (d) the preparation of reports to be filed with the
SEC and other regulatory authorities; (iv) maintains each Fund's records; and
(v) provides office space and all necessary office equipment and services.
 
  M. Roch Hillenbrand, a Managing Director of Goldman, Sachs & Co., is the
Head of Global Equities for Goldman Sachs Asset Management, overseeing U.S.,
Europe, Japan, and non-Japan Asia. In this capacity, he is responsible for
managing the group as it defines and implements global portfolio management
processes that are consistent, reliable and predictable. Roch is also
President of Commodities Corporation LLC, of which Goldman, Sachs & Co. is the
parent company. Over the course of his 18-year career at Commodities
Corporation, Roch has had extensive experience in dealing with internal and
external investment managers who have managed a range of futures and equities
strategies across multiple markets, using a variety of styles.
 
 FUND MANAGERS
 
<TABLE>
<CAPTION>
                                                          YEARS
                                                          PRIMARILY
       NAME AND TITLE          FUND RESPONSIBILITY        RESPONSIBLE     FIVE YEAR EMPLOYMENT HISTORY
  ------------------------- --------------------------    ----------- ----------------------------
  <C>                       <C>                           <C>         <S>
  George D. Adler              Senior Portfolio Manager--    Since      Mr. Adler joined the
   Vice President              Capital Growth                1997       Investment Adviser in
                               Balanced (Equity)             1998       1997. From 1990 to 1997,
                                                                        he was a portfolio
                                                                        manager at Liberty
                                                                        Investment Management,
                                                                        Inc. From 1988 to 1990
                                                                        he was a director of
                                                                        portfolio management at
                                                                        Banc One in Ohio.
- ------------------------------------------------------------------------------------------------------
  Eileen A. Aptman             Senior Portfolio Manager--    Since      Ms. Aptman joined the
   Vice President              Mid Cap Equity                1996       Investment Adviser in
                               Small Cap Value               1997       1993. From 1990 to 1993,
                                                                        she worked at Delphi
                                                                        Management as an equity
                                                                        analyst, focusing her
                                                                        research efforts on
                                                                        value stocks.
- ------------------------------------------------------------------------------------------------------
  Jonathan A. Beinner          Senior Portfolio Manager--    Since      Mr. Beinner joined the
   Managing Director and       Balanced (Fixed-Income)       1994       Investment Adviser in
   Co-Head U.S. Fixed                                                   1990. From 1988 to 1990,
   Income                                                               he worked as a portfolio
                                                                        manager at Franklin
                                                                        Savings Association in
                                                                        the trading and
                                                                        arbitrage group.
- ------------------------------------------------------------------------------------------------------
  Melissa Brown                Senior Portfolio Manager--    Since      Ms. Brown joined the
   Vice President              CORE Large Cap Value          1998       Investment Adviser in
                               CORE U.S. Equity              1998       1998. From 1984 to 1998,
                               CORE Large Cap Growth         1998       she was the director of
                               CORE Small Cap Equity         1998       Quantitative Equity
                                                                        Research and served on
                                                                        the Investment Policy
                                                                        Committee at Prudential
                                                                        Securities.
- ------------------------------------------------------------------------------------------------------
  Kent A. Clark                Senior Portfolio Manager--    Since      Mr. Clark joined the
   Managing Director           CORE Large Cap Value          1998       Investment Adviser in
                               CORE U.S. Equity              1996       1992.
                               CORE Large Cap Growth         1997
                               CORE Small Cap Equity         1997
- ------------------------------------------------------------------------------------------------------
  Robert G. Collins            Senior Portfolio Manager--    Since      Mr. Collins joined the
   Vice President              Capital Growth                1997       Investment Adviser in
                               Balanced (Equity)             1998       1997. From 1991 to 1997,
                                                                        he was a portfolio
                                                                        manager at Liberty
                                                                        Investment Management,
                                                                        Inc. His past
                                                                        experiences include work
                                                                        as a special situations
                                                                        analyst with Raymond
                                                                        James & Associates for
                                                                        five years.
</TABLE>
 
                                      39
<PAGE>
 
<TABLE>
<CAPTION>
                                                        YEARS
                                                        PRIMARILY
      NAME AND TITLE        FUND RESPONSIBILITY         RESPONSIBLE     FIVE YEAR EMPLOYMENT HISTORY
  ---------------------- --------------------------     ----------- ----------------------------
  <C>                    <C>                            <C>         <S>
  Herbert E. Ehlers         Senior Portfolio Manager--     Since      Mr. Ehlers joined the
   Managing Director        Capital Growth                 1997       Investment Adviser in
                            Balanced (Equity)              1998       1997. From 1994 to 1997,
                                                                      he was the Chief
                                                                      Investment Officer and
                                                                      Chairman of Liberty
                                                                      Investment Management,
                                                                      Inc. He was a portfolio
                                                                      manager and president at
                                                                      Liberty's predecessor
                                                                      firm, Eagle Asset
                                                                      Management, from 1984 to
                                                                      1994.
- ----------------------------------------------------------------------------------------------------
  Gregory H. Ekizian        Senior Portfolio Manager--     Since      Mr. Ekizian joined the
   Vice President           Capital Growth                 1997       Investment Adviser in
                            Balanced (Equity)              1998       1997. From 1990 to 1997,
                                                                      he was a portfolio
                                                                      manager at Liberty
                                                                      Investment Management,
                                                                      Inc. and its predecessor
                                                                      firm, Eagle Asset
                                                                      Management.
- ----------------------------------------------------------------------------------------------------
  Paul D. Farrell           Senior Portfolio Manager--     Since      Mr. Farrell joined the
   Managing Director        Mid Cap Equity                 1998       Investment Adviser in
                            Small Cap Value                1992       1991. In 1998, he became
                                                                      responsible for managing
                                                                      the Investment Adviser's
                                                                      Value team. During 1991,
                                                                      he served as a managing
                                                                      director at Plaza
                                                                      Investment Managers, the
                                                                      investment subsidiary of
                                                                      GEICO Corp., a major
                                                                      insurance company. From
                                                                      1986 to 1991, he was
                                                                      employed by Goldman
                                                                      Sachs as a vice
                                                                      president in the
                                                                      investment research
                                                                      department and was
                                                                      responsible for the
                                                                      formation of the firm's
                                                                      Emerging Growth Research
                                                                      Group.
- ----------------------------------------------------------------------------------------------------
  Greg Gigliotti            Senior Portfolio Manager--     Since      Mr. Gigliotti joined the
   Vice President           Growth and Income              1998       Investment Adviser in
                            Balanced (Equity)              1998       1997. From 1996 to 1997
                            Mid Cap Equity                 1998       he was a Vice President
                                                                      and senior analyst at
                                                                      Franklin Mutual
                                                                      Advisors, Inc., the
                                                                      asset management
                                                                      division of Franklin
                                                                      Resources, Inc. From
                                                                      1989 to 1996 he was a
                                                                      Vice President and
                                                                      senior analyst at Heine
                                                                      Securities Corporation
                                                                      which was purchased by
                                                                      Franklin Resources, Inc.
- ----------------------------------------------------------------------------------------------------
  Robert C. Jones           Senior Portfolio Manager--     Since      Mr. Jones joined the
   Managing Director        CORE Large Cap Value           1998       Investment Adviser in
                            CORE U.S. Equity               1991       1989. From 1987 to 1989,
                            CORE Large Cap Growth          1997       he was the senior
                            CORE Small Cap Equity          1997       quantitative analyst in
                                                                      the Goldman Sachs
                                                                      Investment Research
                                                                      Department and the
                                                                      author of the monthly
                                                                      Stock Selection
                                                                      publication.
- ----------------------------------------------------------------------------------------------------
  Richard C. Lucy            Senior Portfolio Manager--    Since      Mr. Lucy joined the
   Managing Director and     Balanced (Fixed-Income)       1994       Investment Adviser in
   Co-Head U.S.                                                       1992. From 1983 to 1992,
   Fixed Income                                                       he managed fixed income
                                                                      assets at Brown Brothers
                                                                      Harriman & Co.
- ----------------------------------------------------------------------------------------------------
  Matthew B. McLennan        Senior Portfolio Manager--    Since      Mr. McLennan joined the
   Vice President            Mid Cap Equity                1998       Investment Adviser in
                             Small Cap Value               1996       1995. From 1994 to 1995,
                                                                      he worked in the
                                                                      Investment Banking
                                                                      Division of Goldman
                                                                      Sachs in Australia. From
                                                                      1991 to 1994, Mr.
                                                                      McLennan worked at
                                                                      Queensland Investment
                                                                      Corporation in
                                                                      Australia.
</TABLE>
 
                                       40
<PAGE>
 
<TABLE>
<CAPTION>
                                                        YEARS
                                                        PRIMARILY
      NAME AND TITLE        FUND RESPONSIBILITY         RESPONSIBLE     FIVE YEAR EMPLOYMENT HISTORY
  ---------------------- --------------------------     ----------- ----------------------------
  <C>                    <C>                            <C>         <S>
  Victor H. Pinter           Senior Portfolio Manager--    Since      Mr. Pinter joined the
   Vice President            CORE Large Cap Value          1998       Investment Adviser in
                             CORE U.S. Equity              1996       1990. From 1985 to 1990,
                             CORE Large Cap Growth         1997-      he was a project manager
                             CORE Small Cap Equity         1997       in the Information
                                                                      Technology Division of
                                                                      the Investment Adviser.
- ----------------------------------------------------------------------------------------------------
  Thomas S. Price            Senior Portfolio Manager--    Since      Mr. Price joined the
   Vice President            Growth and Income             1998       Investment Adviser in
                             Balanced (Equity)             1998       1997. From 1996 to 1997
                             Mid Cap Equity                1998       he was a Vice President
                                                                      and senior analyst at
                                                                      Franklin Mutual
                                                                      Advisors, Inc., the
                                                                      asset management
                                                                      division of Franklin
                                                                      Resources, Inc. From
                                                                      1993 to 1996 he was a
                                                                      Vice President and
                                                                      senior analyst at Heine
                                                                      Securities Corporation
                                                                      which was purchased by
                                                                      Franklin Resources, Inc.
- ----------------------------------------------------------------------------------------------------
  David G. Shell             Senior Portfolio Manager--    Since      Mr. Shell joined the
   Vice President            Capital Growth                1997       Investment Adviser in
                             Balanced (Equity)             1998       1997. From 1987 to 1997,
                                                                      he was a portfolio
                                                                      manager at Liberty
                                                                      Investment Management,
                                                                      Inc. and its predecessor
                                                                      firm, Eagle Asset
                                                                      Management.
- ----------------------------------------------------------------------------------------------------
  Ernest C. Segundo, Jr.     Senior Portfolio Manager--    Since      Mr. Segundo joined the
   Vice President            Capital Growth                1997       Investment Adviser in
                             Balanced (Equity)             1998       1997. From 1992 to 1997,
                                                                      he was a portfolio
                                                                      manager at Liberty
                                                                      Investment Management,
                                                                      Inc. From 1990 to 1992,
                                                                      he was an equity
                                                                      research analyst with
                                                                      Fidelity Management &
                                                                      Research Company.
- ----------------------------------------------------------------------------------------------------
  Lawrence S. Sibley         Senior Portfolio Manager--    Since      Mr. Sibley joined the
   Vice President            Growth and Income             1997       Investment Adviser in
                             Balanced (Equity)             1997       1997. From 1994 to 1997,
                             Mid Cap Equity                1997       he headed Institutional
                                                                      Equity Sales at J.P.
                                                                      Morgan Securities and
                                                                      from 1987 to 1994, he
                                                                      was a principal of
                                                                      Sanford C. Bernstein &
                                                                      Co. in its Institutional
                                                                      Sales Department.
- ----------------------------------------------------------------------------------------------------
  Karma Wilson               Senior Portfolio Manager--    Since      Ms. Wilson joined the
   Vice President            Growth and Income             1998       Investment Adviser in
                             Balanced (Equity)             1998       1994. Prior to 1994, she
                             Mid Cap Equity                1998       was an investment
                                                                      analyst with Bankers
                                                                      Trust Australia Ltd.
                                                                      Before 1992 she was
                                                                      employed at Arthur
                                                                      Andersen LLP.
</TABLE>
 
  It is the responsibility of the Investment Adviser to make the investment
decisions for a Fund and to place the purchase and sale orders for the Fund's
portfolio transactions in U.S. and foreign markets. Such orders may be
directed to any broker including, to the extent and in the manner permitted by
applicable law, Goldman Sachs or its affiliates. In effecting purchases and
sales of portfolio securities for the Funds, the Investment Adviser will seek
the best price and execution of a Fund's orders. In doing so, where two or
more brokers or dealers offer comparable prices and execution for a particular
trade, consideration may be given to whether the broker or dealer provides
investment research or brokerage services or sells Shares of any Goldman Sachs
Fund. See the Additional Statement for a further description of the Investment
Adviser's brokerage allocation practices.
 
                                      41
<PAGE>
 
  As compensation for its services rendered and assumption of certain expenses
pursuant to separate Management Agreements, GSAM and GSFM are entitled to the
following fees, computed daily and payable monthly at the annual rates listed
below:
<TABLE>
<CAPTION>
                                                               FOR THE FISCAL
                                                CONTRACTUAL YEAR OR PERIOD ENDED
                                                   RATE*     JANUARY 31, 1998*
                                                ----------- --------------------
     <S>                                        <C>         <C>
     GSAM
     ----
     Balanced..................................    0.65%            0.65%
     Growth and Income.........................    0.70%            0.70%
     CORE Large Cap Value......................    0.60%             N/A
     CORE Large Cap Growth.....................    0.75%            0.60%
     CORE Small Cap Equity.....................    0.85%            0.75%
     Mid Cap Equity............................    0.75%            0.75%
     Small Cap Value...........................    1.00%            1.00%
     GSFM
     ----
     CORE U.S. Equity..........................    0.75%            0.59%
     Capital Growth............................    1.00%            1.00%
</TABLE>
- ---------------------
*  All numbers are annualized. The difference, if any, between the stated fees
   and the actual fees paid by the Funds reflects that the applicable
   Investment Adviser did not charge the full amount of the fees to which it
   would have been entitled. Effective September 1, 1998, the management fee
   for the CORE U.S. Equity and CORE Small Cap Equity Funds will equal 0.70%
   and 0.85%, respectively. As of January 31, 1998, the CORE Large Cap Value
   Fund had not commenced operations. The Investment Adviser may discontinue
   or modify any limitations in the future at its discretion.
 
  The Investment Adviser has voluntarily agreed to reduce or limit certain
"Other Expenses" of the Funds (excluding management, distribution and service
fees, transfer agency fees, taxes, interest and brokerage fees and litigation,
indemnification and other extraordinary expenses) to the extent such expenses
exceed 0.01%, 0.05%, 0.00%, 0.00%, 0.00%, 0.04%, 0.00%, 0.10% and 0.06% per
annum of the average daily net assets of the Balanced, Growth and Income, CORE
Large Cap Value, CORE U.S. Equity, CORE Large Cap Growth, CORE Small Cap
Equity, Capital Growth, Mid Cap Equity and Small Cap Value Funds,
respectively. Such reductions or limits, if any, may be discontinued or
modified by the applicable Investment Adviser in its discretion at any time.
 
  ACTIVITIES OF GOLDMAN SACHS AND ITS AFFILIATES AND OTHER ACCOUNTS MANAGED BY
GOLDMAN SACHS. The involvement of the Investment Adviser, Goldman Sachs and
their affiliates in the management of, or their interest in, other accounts
and other activities of Goldman Sachs may present conflicts of interest with
respect to a Fund or limit a Fund's investment activities. Goldman Sachs and
its affiliates engage in proprietary trading and advise accounts and funds
which have investment objectives similar to those of the Funds and/or which
engage in and compete for transactions in the same types of securities,
currencies and instruments as the Funds. Goldman Sachs and its affiliates will
not have any obligation to make available any information regarding their
proprietary activities or strategies, or the activities or strategies used for
other accounts managed by them, for the benefit of the management of the
Funds. The results of a Fund's investment activities, therefore, may differ
from those of Goldman Sachs and its affiliates and it is possible that a Fund
could sustain losses during periods in which Goldman Sachs and its affiliates
and other accounts achieve significant profits on their trading for
proprietary or other accounts. In addition, the Funds may, from time to time,
enter into transactions in which other clients of Goldman Sachs have an
adverse interest. From time to time, a Fund's activities may be limited
because of
 
                                      42
<PAGE>
 
regulatory restrictions applicable to Goldman Sachs and its affiliates, and/or
their internal policies designed to comply with such restrictions. See
"Management--Activities of Goldman Sachs and its Affiliates and Other Accounts
Managed by Goldman Sachs" in the Additional Statement for further information.
 
DISTRIBUTOR AND TRANSFER AGENT
 
  Goldman Sachs, 85 Broad Street, New York, New York 10004, serves as the
exclusive distributor (the "Distributor") of each Fund's Shares. Shares may
also be sold by Authorized Dealers. Authorized Dealers include investment
dealers that are members of the NASD and certain other financial service
firms. To become an Authorized Dealer, a dealer or financial service firm must
enter into a sales agreement with Goldman Sachs. The minimum investment
requirements, services, programs and purchase and redemption options for
Shares purchased through a particular Authorized Dealer may be different from
those available to investors purchasing through other Authorized Dealers.
 
  Goldman Sachs, 4900 Sears Tower, Chicago, Illinois 60606, also serves as
each Fund's transfer agent (the "Transfer Agent") and as such performs various
shareholder servicing functions. As compensation for the services rendered to
each Fund by Goldman Sachs (as Transfer Agent), Goldman Sachs is entitled to a
fee with respect to each Fund's Class A, Class B and Class C Shares equal, on
an annual basis, to 0.19% of average daily net assets. Shareholders with
inquiries regarding any Fund should contact Goldman Sachs (as Transfer Agent)
at the address or the telephone number set forth on the back cover page of
this Prospectus.
 
  From time to time, Goldman Sachs or any of its affiliates may purchase and
hold Shares of the Funds. Goldman Sachs reserves the right to redeem at any
time some or all of the Shares acquired for its own account.
 
YEAR 2000
 
  Many computer systems were designed using only two digits to signify the
year (for example, "98" for "1998"). On January 1, 2000, if these computer
systems are not corrected, they may incorrectly interpret "00" as the year
"1900" rather than the year "2000," leading to computer shutdowns or errors
(commonly known as the "Year 2000 Problem"). To the extent these systems
conduct forward-looking calculations, these computer problems may occur prior
to January 1, 2000. Like other investment companies and financial and business
organizations, the Funds could be adversely affected in their ability to
process securities trades, price securities, provide shareholder account
services and otherwise conduct normal business operations if the Investment
Adviser or other Fund service providers do not adequately address this problem
in a timely manner. The Investment Adviser has established a dedicated group
to analyze these issues and to implement the systems modifications necessary
to prepare for the Year 2000 Problem. Currently, the Investment Adviser does
not anticipate that the transition to the 21st Century will have any material
impact on its ability to continue to service the Funds at current levels. In
addition, the Investment Adviser has sought assurances from the Funds' other
service providers that they are taking the steps necessary so that they do not
experience Year 2000 Problems, and the Investment Adviser will continue to
monitor the situation. At this time, however, no assurance can be given that
the actions taken by the Investment Adviser and the Funds' other service
providers will be sufficient to avoid any adverse effect on the Funds due to
the Year 2000 Problem.
 
                                      43
<PAGE>
 
 
                                   EXPENSES
 
  The Funds are responsible for the payment of their expenses. The expenses
include, without limitation: fees payable to the Investment Adviser;
distribution and service fees; custodial and transfer agency fees; brokerage
fees and commissions; filing fees for the registration or qualification of the
Funds' Shares under federal or state securities laws, organizational expenses;
fees and expenses incurred in connection with membership in investment company
organizations; taxes; interest; costs of liability insurance, fidelity bonds
or indemnification; any costs, expenses or losses arising out of any liability
of, or claim for damages or other relief asserted against, the Funds for
violation of any law; legal and auditing fees and expenses (including the cost
of legal and certain accounting services rendered by employees of the
Investment Adviser and its affiliates with respect to the Funds); expenses of
preparing and setting in type prospectuses, Additional Statements, proxy
material, financial reports and notices and the printing and distributing of
the same to shareholders and regulatory authorities; compensation and expenses
of the Trust's "non-interested" Trustees; and extraordinary organizational
expenses, if any, incurred by the Trust.
 
 
                            REPORTS TO SHAREHOLDERS
 
  Shareholders will receive an annual report containing audited financial
statements and a semi-annual report. To eliminate unnecessary duplication,
only one copy of such reports may be sent to shareholders with the same
mailing address. Shareholders who desire a duplicate copy of such reports to
be mailed to their residence should contact Goldman Sachs at 800-526-7384.
Each shareholder will also be provided with a printed confirmation for each
transaction in the shareholder's account and an individual quarterly account
statement. A year-to-date statement for any account will be provided upon
request made to Goldman Sachs. The Funds do not generally provide sub-
accounting services.
 
 
                                 HOW TO INVEST
 
ALTERNATIVE PURCHASE ARRANGEMENTS
 
  Each Fund continuously offers through this Prospectus Class A, Class B and
Class C Shares, as described more fully in "How to Buy Shares of the Funds."
If you do not specify in your instructions to the Funds which class of Shares
you wish to purchase, the Funds will assume that your instructions apply to
Class A Shares.
 
  CLASS A SHARES. If you invest less than $1 million in Class A Shares you
will pay an initial sales charge. Certain purchases may qualify for reduced
initial sales charges. If you invest $1 million or more in Class A Shares of a
Fund, no sales charge will be imposed at the time of purchase, but you may
incur a deferred sales charge equal to 1.00% if you redeem your Shares within
18 months of purchase. Class A Shares are subject to distribution and service
fees of 0.25% per annum of each Fund's average daily net assets attributable
to Class A Shares.
 
                                      44
<PAGE>
 
  CLASS B SHARES. Class B Shares are sold without an initial sales charge, but
are subject to a CDSC of up to 5% if redeemed within six years of purchase.
Class B Shares are subject to distribution and service fees of 1.00% per annum
of each Fund's average daily net assets attributable to Class B Shares. See
"Distribution and Service Plans." Class B Shares will automatically convert to
Class A Shares, based on their relative NAVs, eight years after the initial
purchase. Your entire investment in Class B Shares is available to work for
you from the time you make your initial investment, but the distribution and
service fee paid by Class B Shares will cause your Class B Shares (until
conversion to Class A Shares) to have a higher expense ratio and to pay lower
dividends, to the extent dividends are paid, than Class A Shares.
 
  CLASS C SHARES. Class C Shares are sold without an initial sales charge, but
are subject to a CDSC of 1% if redeemed within 12 months of purchase. Class C
Shares are subject to distribution and service fees of 1.00% per annum of each
Fund's average daily net assets attributable to Class C Shares. See
"Distribution and Service Plans." Class C Shares have no conversion feature,
and accordingly, an investor that purchases Class C Shares will be subject to
the distribution and service fee imposed on Class C Shares for an indefinite
period, subject to annual approval by the Fund's Board of Trustees and certain
regulatory limitations. Your entire investment in Class C Shares is available
to work for you from the time you make your initial investment, but the
distribution and service fee paid by Class C Shares will cause your Class C
Shares to have a higher expense ratio and to pay lower dividends, to the
extent dividends are paid, than Class A Shares (or Class B Shares after
conversion to Class A Shares).
 
  FACTORS TO CONSIDER IN CHOOSING CLASS A, CLASS B OR CLASS C SHARES. The
decision as to which class to purchase depends on the amount you invest, the
intended length of the investment and your personal situation. For example, if
you are making an investment of $50,000 or more that qualifies for a reduced
sales charge, you should consider purchasing Class A Shares. A brief
description of when the initial sales charge may be reduced or eliminated is
set forth below under "Right of Accumulation" and "Statement of Intention." If
you prefer not to pay an initial sales charge on an investment and plan to
hold your investment for at least six years, you might consider purchasing
Class B Shares. If you prefer not to pay an initial sales charge and are
unsure of the length of your investment or plan to hold your investment for
less than eight years, you may prefer Class C Shares. There is no size limit
on the purchase of Class A Shares. A maximum purchase limitation of $250,000
and $1,000,000 in the aggregate normally applies to purchases of Class B
Shares and Class C Shares, respectively. Although Class C Shares are subject
to a CDSC for only 12 months and at a lower rate than Class B Shares, Class C
Shares do not have the conversion feature applicable to Class B Shares, making
them subject to higher distribution and service fees for an indefinite period.
Authorized Dealers may receive different compensation for selling Class A,
Class B or Class C Shares.
 
HOW TO BUY SHARES OF THE FUNDS--CLASS A, CLASS B AND CLASS C SHARES
 
  You may purchase Shares of the Funds through any Authorized Dealer
(including Goldman Sachs) or directly from a Fund, c/o National Financial Data
Services, Inc. ("NFDS"), P.O. Box 419711, Kansas City, MO 64141-6711 on any
Business Day (as defined under "Additional Information") at the NAV next
determined after receipt of an order as described below under "Other Purchase
Information," plus, in the case of Class A Shares, any applicable sales
charge. Currently, each Fund's NAV is determined as of the close of regular
trading on the New York Stock Exchange (which is normally, but not always,
4:00 p.m. New York time).
 
  The minimum initial investment in each Fund is $1,000. An initial investment
minimum of $250 applies to purchases in connection with tax-sheltered
retirement plans, Individual Retirement Account Plans (excluding SIMPLE IRAs
and Education IRAs) or accounts established under the Uniform Gift to Minors
Act ("UGMA"),
 
                                      45
<PAGE>
 
and an initial investment minimum of $200 applies to purchases in connection
with 403(b) plans. The minimum initial investment for purchases in connection
with SIMPLE and Education IRAs, as well as purchases through the Automatic
Investment Plan, is $50. The minimum subsequent investment is $50. These
requirements may be waived at the discretion of the Trust's officers.
 
  You may pay for purchases of Shares by check (except that the Trust will not
accept a check drawn on a foreign bank or a third party check), Federal
Reserve draft, federal funds wire, ACH transfer or bank wire. Purchases of
Shares by check or Federal Reserve draft should be made payable as follows:
(i) to an investor's Authorized Dealer, if purchased through such Authorized
Dealer, or (ii) to Goldman Sachs Domestic Equity Funds--(Name of Fund and
class of Shares) and sent to NFDS, P.O. Box 419711, Kansas City, MO 64141-
6711. Federal funds wires, ACH transfers and bank wires should be sent to
State Street Bank and Trust Company ("State Street"). Payment must be received
within three Business Days after receipt of the purchase order. An investor's
Authorized Dealer is responsible for forwarding payment promptly to the Fund.
 
  In order to make an initial investment in a Fund, an investor must establish
an account with the Fund by furnishing to the Fund, Goldman Sachs or the
investor's Authorized Dealer the information in the Account Application
attached to this Prospectus. The Funds may refuse to open an account for any
investor who fails to (i) provide a social security number or other taxpayer
identification number; or (ii) certify that such number is correct (if
required to do so under applicable law).
 
  The Funds reserve the right to redeem Shares of any shareholder whose
account balance is less than $50 as a result of earlier redemptions. Such
redemptions will not be implemented if the value of a shareholder's account
falls below the minimum account balance solely as a result of market
conditions. A Fund will give sixty (60) days' prior written notice to
shareholders whose Shares are being redeemed to allow them to purchase
sufficient additional Shares of the Fund to avoid such redemption. In
addition, the Funds and Goldman Sachs reserve the right to modify the minimum
investment, the manner in which Shares are offered and the sales charge rates
applicable to future purchases of Shares.
 
OFFERING PRICE--CLASS A SHARES
 
  The offering price of Class A Shares of each Fund is the next determined NAV
per Share plus a sales charge, if any, paid to Goldman Sachs at the time of
purchase of Shares as shown in the following table:
 
<TABLE>
<CAPTION>
                                                                SALES CHARGE   MAXIMUM DEALER
                                                SALES CHARGE AS AS PERCENTAGE   ALLOWANCE AS
       AMOUNT OF PURCHASE                        PERCENTAGE OF  OF NET AMOUNT   PERCENTAGE OF
(INCLUDING SALES CHARGE, IF ANY)                OFFERING PRICE    INVESTED    OFFERING PRICE***
- --------------------------------                --------------- ------------- -----------------
<S>                                             <C>             <C>           <C>
Less than $50,000..............................      5.50%          5.82%           5.00%
$50,000 up to (but less than) $100,000.........      4.75           4.99            4.00
$100,000 up to (but less than) $250,000........      3.75           3.90            3.00
$250,000 up to (but less than) $500,000........      2.75           2.83            2.25
$500,000 up to (but less than) $1 million......      2.00           2.04            1.75
$1 million or more.............................      0.00*          0.00*            **
</TABLE>
 
                                                       (footnotes on next page)
 
                                      46
<PAGE>
 
- --------
  * No sales charge is payable at the time of purchase of Class A Shares of $1
    million or more, but a CDSC may be imposed in the event of certain
    redemption transactions made within 18 months of purchase.
 
 ** Goldman Sachs pays a one-time commission to Authorized Dealers who
    initiate or are responsible for purchases of $1 million or more of Shares
    of the Funds equal to 1.00% of the amount under $3 million, 0.50% of the
    next $2 million, and 0.25% thereafter. Goldman Sachs may also pay, with
    respect to all or a portion of the amount purchased, a commission in
    accordance with the foregoing schedule to Authorized Dealers who initiate
    or are responsible for plans investing in the Funds which satisfy the
    criteria set forth in (h) below or "wrap" accounts purchasing $1 million
    or more which satisfy the criteria set forth in (i) below. Purchases by
    such plans will be made at NAV with no initial sales charge, but if all of
    the Shares held are redeemed within 18 months after the end of the
    calendar month in which such purchase was made, a CDSC, as described
    below, of 1.00% may be imposed upon the plan sponsor or the third party
    administrator. In addition, Authorized Dealers shall remit to Goldman
    Sachs such payments received in connection with "wrap" accounts in the
    event that Shares are redeemed within 18 months after the end of the
    calendar month in which the purchase was made.
 
*** During special promotions, the entire sales charge may be reallowed to
    Authorized Dealers. Authorized Dealers to whom substantially the entire
    sales charge is reallowed may be deemed to be "underwriters" under the
    Securities Act of 1933.
 
  Purchases of $1 million or more of Class A Shares will be made at NAV with
no initial sales charge, but if the Shares are redeemed within 18 months after
the end of the calendar month in which the purchase was made, excluding any
period of time in which the Shares were exchanged into and remained invested
in an ILA Portfolio (the "CDSC period"), a CDSC of 1.00% may be imposed
unless, in certain cases, the investor's Authorized Dealer enters into an
agreement with Goldman Sachs to return all or an applicable prorated portion
of its commission to Goldman Sachs. Any applicable CDSC will be assessed on an
amount equal to the lesser of the current market value or the original
purchase cost of the redeemed Class A Shares. Accordingly, no CDSC will be
imposed on increases in account value above the initial purchase price,
including any dividend or capital gains distributions which have been
reinvested in additional Class A Shares. Upon redemption of Shares subject to
a CDSC, shareholders will receive that portion of the appreciation in account
value attributable to the Shares actually redeemed. In determining whether a
CDSC applies to a redemption, it will be assumed that the redemption is first
made from any Class A Shares in your account that are not subject to the CDSC.
The CDSC is waived on redemptions in certain circumstances. See "Waiver or
Reduction of Contingent Deferred Sales Charges" below.
 
  Class A Shares of the Funds may be sold at NAV without payment of any sales
charge to: (a) Goldman Sachs, its affiliates or their respective officers,
partners, directors or employees (including retired employees and former
partners), any partnership of which Goldman Sachs is a general partner, any
Trustee or officer of the Trust and designated family members of any of the
above individuals; (b) qualified retirement plans of Goldman Sachs; (c)
trustees or directors of investment companies for which Goldman Sachs or an
affiliate acts as sponsor; (d) any employee or registered representative of
any Authorized Dealer or their respective spouses, children and parents; (e)
banks, trust companies or other types of depository institutions investing for
their own account or investing for accounts for which they have investment
discretion; (f) banks, trust companies or other types of depository
institutions investing for accounts for which they do not have investment
discretion; (g) any state, county or city, or any instrumentality, department,
authority or agency thereof, which is prohibited by applicable investment laws
from paying a sales charge or commission in connection with the purchase of
Shares of a Fund; (h) pension and profit sharing plans, pension funds and
other company-sponsored benefit plans that (1) buy Shares worth $500,000 or
more, or (2) have at the time of purchase, 100 or more eligible participants,
or (3) certify that they project to have annual plan purchases of $200,000 or
more, or (4) are provided administrative services by certain third-party
administrators that have entered into a special service arrangement with
Goldman
 
                                      47
<PAGE>
 
Sachs relating to such plan; (i) "wrap" accounts for the benefit of clients of
broker-dealers, financial institutions or financial planners, provided that
they have entered into an agreement with GSAM specifying aggregate minimums
and certain operating policies and standards; (j) registered investment
advisers investing for accounts for which they receive asset-based fees; (k)
accounts over which GSAM or its advisory affiliates have investment
discretion; and (l) shareholders receiving distributions from a qualified
retirement plan invested in the Goldman Sachs Funds and reinvesting such
proceeds in a Goldman Sachs IRA. Purchasers must certify eligibility for an
exemption on the Account Application and notify Goldman Sachs if the
shareholder is no longer eligible for an exemption. Exemptions will be granted
subject to confirmation of a purchaser's entitlement. Investors purchasing
Shares of the Funds at NAV without payment of any initial sales charge may be
charged a fee if they effect transactions in Shares through a broker or agent.
In addition, under certain circumstances, dividends and distributions from any
of the Goldman Sachs Funds may be reinvested in Shares of each Fund at NAV, as
described under "Cross-Reinvestment of Dividends and Distributions and
Automatic Exchange Program."
 
RIGHT OF ACCUMULATION--CLASS A SHARES
 
  Class A purchasers may qualify for reduced sales charges when the current
market value of holdings (Shares at current offering price), plus new
purchases, reaches $50,000 or more. Class A Shares of the Goldman Sachs Funds
may be combined under the Right of Accumulation. See the Additional Statement
for more information about the Right of Accumulation.
 
STATEMENT OF INTENTION--CLASS A SHARES
 
  Purchases of $50,000 or more made over a 13-month period are eligible for
reduced sales charges. Class A Shares of the Goldman Sachs Funds may be
combined under the Statement of Intention. See the Additional Statement for
more information about the Statement of Intention.
 
OFFERING PRICE--CLASS B SHARES
 
  Investors may purchase Class B Shares of the Funds at the next determined
NAV without the imposition of an initial sales charge. However, Class B Shares
redeemed within six years of purchase will be subject to a CDSC at the rates
shown in the table below. At redemption, the charge will be assessed on the
amount equal to the lesser of the current market value or the original
purchase cost of the Shares being redeemed. No CDSC will be imposed on
increases in account value above the initial purchase price, including Shares
derived from the reinvestment of dividends or capital gains distributions.
Upon redemption of Shares subject to a CDSC, shareholders will receive that
portion of the appreciation in account value attributable to the Shares
actually redeemed.
 
  The amount of the CDSC, if any, will vary depending on the number of years
from the time of purchase until the time of redemption of Class B Shares. For
the purpose of determining the number of years from the time of any purchase,
all payments during a month will be aggregated and deemed to have been made on
the first day of that month. In processing redemptions of Class B Shares, the
Funds will first redeem Shares not subject to any CDSC, and then Shares held
longest during the applicable period.
 
<TABLE>
<CAPTION>
                                                                 CDSC AS A
                                                                 PERCENTAGE OF
   YEAR SINCE                                                    DOLLAR AMOUNT
   PURCHASE                                                      SUBJECT TO CDSC
   ----------                                                    ---------------
   <S>                                                           <C>
   First........................................................      5.0%
   Second.......................................................      4.0%
   Third........................................................      3.0%
   Fourth.......................................................      3.0%
   Fifth........................................................      2.0%
   Sixth........................................................      1.0%
   Seventh and thereafter.......................................      none
</TABLE>
 
 
                                      48
<PAGE>
 
  Proceeds from the CDSC are payable to the distributor and may be used in
whole or part to defray the distributor's expenses related to providing
distribution-related services to the Funds in connection with the sale of
Class B Shares, including the payment of compensation to Authorized Dealers. A
commission equal to 4.00% of the amount invested is paid to Authorized
Dealers.
 
  Class B Shares of a Fund will automatically convert into Class A Shares of
the same Fund at the end of the calendar quarter that is eight years after the
purchase date, except as noted below. Class B Shares of a Fund acquired by
exchange from Class B Shares of another Goldman Sachs Fund will convert into
Class A Shares of such Fund based on the date of the initial purchase. Class B
Shares acquired through reinvestment of distributions will convert into Class
A Shares based on the date of the initial purchase of the Shares on which the
distribution was paid. The conversion of Class B Shares to Class A Shares will
not occur at any time the Funds are advised that such conversions may
constitute taxable events for federal tax purposes, which the Funds believe is
unlikely. If conversions do not occur as a result of possible taxability,
Class B Shares would continue to be subject to higher expenses than Class A
Shares for an indeterminate period.
 
OFFERING PRICE--CLASS C SHARES
 
  Investors may purchase Class C Shares of the Funds at the next determined
NAV without the imposition of an initial sales charge. However, if Class C
Shares are redeemed within 12 months of purchase, a CDSC of 1% will be
deducted from the redemption proceeds. At redemption, the charge will be
assessed on the amount equal to the lesser of the current market value or the
original purchase cost of the Shares being redeemed. No CDSC will be imposed
on increases in account value above the initial purchase price, including
Shares derived from the reinvestment of dividends or capital gains
distributions. Upon redemption of Shares subject to a CDSC, shareholders will
receive that portion of the appreciation in account value attributable to the
Shares actually redeemed.
 
  For the purpose of determining the number of months from the time of any
purchase, all payments during a month will be aggregated and deemed to have
been made on the first day of that month. In processing redemptions of Class C
Shares, the Funds will first redeem Shares held for longer than 12 months, and
then Shares held for the longest period during the 12 month period. Proceeds
from the CDSC are payable to the Distributor and may be used in whole or in
part to defray the Distributor's expenses related to providing distribution-
related services to the Funds in connection with the sale of Class C Shares,
including the payment of compensation to Authorized Dealers. An amount equal
to 1.00% of the amount invested is paid by the Distributor to Authorized
Dealers.
 
REINVESTMENT OF REDEMPTION PROCEEDS--CLASS A, CLASS B AND CLASS C SHARES
 
  A shareholder who redeems Class A or Class B Shares of a Fund may reinvest
at NAV any portion or all of the redemption proceeds (plus that amount
necessary to acquire a fractional Share to round off his purchase to the
nearest full Share) in Class A Shares of the same Fund or any other Goldman
Sachs Fund. A shareholder who redeems Class C Shares of a Fund may reinvest at
NAV any portion or all of the redemption proceeds (plus that amount necessary
to acquire a fractional Share to round off the purchase to the nearest full
Share) in Class C Shares of the same Fund or any other Goldman Sachs Fund.
Shareholders should obtain and read the applicable prospectuses of such other
funds and consider their objectives, policies and applicable fees before
investing in any of such funds. This reinvestment privilege is subject to the
condition that the Shares redeemed have been held for at least thirty (30)
days before the redemption and that the reinvestment is effected within ninety
(90) days after such redemption. If you redeemed Class A or Class C Shares,
paid a CDSC upon redemption and
 
                                      49
<PAGE>
 
reinvest in Class A or Class C Shares subject to the conditions set forth
above, your account will be credited with the amount of the CDSC previously
charged, and the reinvested Shares will continue to be subject to a CDSC. In
this case, the holding period of the Class A or Class C Shares acquired
through reinvestment for purposes of computing the CDSC payable upon a
subsequent redemption will include the holding period of the redeemed Shares.
If you redeemed Class B Shares and paid a CDSC upon redemption, you are
permitted to reinvest the redemption proceeds in Class A Shares at NAV as
described above, but the amount of the CDSC paid upon redemption will not be
credited to your account.
 
  A reinvesting shareholder may be subject to tax as a result of such
redemption. If the redemption occurs within 90 days after the original
purchase of Class A Shares, any sales charge paid on the original purchase
cannot be taken into account by a reinvesting shareholder to the extent an
otherwise applicable sales charge is not imposed pursuant to the reinvestment
privilege for purposes of determining gain or loss, if any, realized on the
redemption, but instead will be added to the tax basis of the Class A Shares
received in the reinvestment. To the extent that any loss is realized and
Shares of the same Fund are purchased within 30 days before or after the
redemption, some or all of the loss may not be allowed as a deduction
depending upon the number of Shares purchased. Shareholders should consult
their own tax advisers concerning the tax consequences of a redemption and
reinvestment. Upon receipt of a written request, the reinvestment privilege
may be exercised once annually by a shareholder, except that there is no such
time limit as to the availability of this privilege in connection with
transactions the sole purpose of which is to reinvest the proceeds at NAV in a
tax-sheltered retirement plan.
 
WAIVER OR REDUCTION OF CONTINGENT DEFERRED SALES CHARGE--CLASS A, B AND C
SHARES
 
  The CDSC on Class B, Class C and Class A Shares that are subject to a CDSC
may be waived or reduced if the redemption relates to: (a) retirement
distributions or loans to participants or beneficiaries from pension and
profit sharing plans, pension funds and other company-sponsored benefit plans
(each a "Plan"); (b) the death or disability (as defined in Section 72(m)(7)
of the Code) of a participant or beneficiary in a Plan; (c) hardship
withdrawals by a participant or beneficiary in a Plan; (d) satisfying the
minimum distribution requirements of the Code; (e) the establishment of
"substantially equal periodic payments" as described in Section 72(t)(2) of
the Code; (f) the separation from service by a participant or beneficiary in a
Plan; (g) the death or disability (as defined in Section 72(m)(7) of the Code)
of a shareholder if the redemption is made within one year of such event; (h)
excess contributions distributed from a Plan; (i) distributions from a
qualified retirement plan invested in the Goldman Sachs Funds which are being
rolled over to a Goldman Sachs IRA; and (j) redemption proceeds which are to
be reinvested in accounts or non-registered products over which GSAM or its
advisory affiliates have investment discretion. In addition, Class A, Class B
and Class C Shares subject to a Systematic Withdrawal Plan may be redeemed
without a CDSC. However, Goldman Sachs reserves the right to limit such
redemptions, on an annual basis, to 12% each of the value of your Class B and
Class C Shares and 10% of the value of your Class A Shares.
 
 
                      SERVICES AVAILABLE TO SHAREHOLDERS
 
AUTOMATIC INVESTMENT PLAN
 
  Systematic cash investments may be made through a shareholder's bank via the
Automated Clearing House Network or a shareholder's checking account via bank
draft each month. Required forms are available from Goldman Sachs or any
Authorized Dealer.
 
                                      50
<PAGE>
 
CROSS-REINVESTMENT OF DIVIDENDS AND DISTRIBUTIONS AND AUTOMATIC EXCHANGE
PROGRAM
 
  A shareholder may elect to cross-reinvest dividends and capital gain
distributions paid by a Fund in Shares of the same class or an equivalent
class of other Goldman Sachs Funds or ILA Portfolios. See "Fund Highlights." A
shareholder may also elect to exchange automatically a specified dollar amount
of Shares of a Fund for Shares of the same Class or an equivalent class of any
other Goldman Sachs Fund or ILA Portfolio. Shares acquired through cross-
reinvestment of dividends or the automatic exchange program will be purchased
at NAV and will not be subject to any initial sales charge or CDSC as a result
of the cross-reinvestment or exchange, but Shares subject to a CDSC acquired
under the automatic exchange program may be subject to a CDSC at the time of
redemption from the fund into which the exchange is made determined on the
basis of the date and value of the investor's initial purchase of the Fund
from which the exchange (or any prior exchange) is made. Automatic exchanges
are made monthly on the 15th day of each month or the first Business Day
thereafter. The minimum dollar amount for automatic exchanges must be at least
$50 per month. Cross-reinvestments and automatic exchanges are subject to the
following conditions: (i) the value of the shareholder's account(s) in the
Fund which is paying the dividend or from which the automatic exchange is
being made must equal or exceed $5,000; and (ii) the value of the account in
the acquired fund must equal or exceed the acquired fund's minimum initial
investment requirement or the shareholder must elect to continue cross-
reinvestment or automatic exchanges until the value of acquired fund Shares in
the shareholder's account equals or exceeds the acquired fund's minimum
initial investment requirement. A Fund shareholder may elect cross-
reinvestment into an identical account or an account registered in a different
name or with a different address, social security or other taxpayer
identification number, provided that the account in the acquired fund has been
established, appropriate signatures have been obtained and the minimum initial
investment requirement has been satisfied. A Fund shareholder should obtain
and read the prospectus of the fund into which dividends are invested or
automatic exchanges are made.
 
TAX-SHELTERED RETIREMENT PLANS
 
  The Funds offer their Shares for purchase by retirement plans, including
traditional and Roth IRAs for individuals and their spouses, IRA plans for
employees in connection with employer sponsored SEP, SAR-SEP and SIMPLE IRA
plans, 403(b) plans and defined contribution plans such as 401(k) Salary
Reduction Plans. Detailed information concerning these plans may be obtained
from the Transfer Agent. The information sets forth the service fee charged
for retirement plans and describes the federal income tax consequences of
establishing a plan. This information should be read carefully, and
consultation with an attorney or tax adviser may be advisable.
 
EXCHANGE PRIVILEGE
 
  Shares of a Fund may be exchanged at NAV without the imposition of an
initial sales charge or CDSC at the time of exchange for Shares of the same
class or an equivalent class of any other Fund, Goldman Sachs Fund or ILA
Portfolio. A shareholder needs to obtain and read the prospectus of the fund
into which the exchange is made. The Shares of these other funds acquired by
an exchange may later be exchanged for Shares of the same class (or an
equivalent class) of the original Fund at the next determined NAV without the
imposition of an initial sales charge or CDSC if the dollar amount in the Fund
resulting from such exchanges is below the shareholder's all-time highest
dollar amount on which it has previously paid the applicable sales charge.
Shares of these other funds purchased through dividends and/or capital gains
reinvestment may be exchanged for Shares of the Funds without a sales charge.
In addition to free automatic exchanges pursuant to the Automatic Exchange
Program, six free exchanges are permitted in each 12 month period. A fee of
$12.50 may be charged for each subsequent exchange during such period. The
exchange privilege may be materially modified or withdrawn at any time upon 60
days' notice to shareholders and is subject to certain limitations.
 
                                      51
<PAGE>
 
  An exchange of Shares subject to a CDSC will not be subject to the
applicable CDSC at the time of exchange. Shares subject to a CDSC acquired in
an exchange will be subject to the CDSC of the Shares originally held. For
purposes of determining the amount of any applicable CDSC, the length of time
a shareholder has owned Shares will be measured from the date the shareholder
acquired the original Shares subject to a CDSC and will not be affected by any
subsequent exchange.
 
  An exchange may be made by identifying the applicable Fund and Class of
Shares and either writing to Goldman Sachs, Attention: Goldman Sachs Domestic
Equity Funds, Shareholder Services, c/o NFDS, P.O. Box 419711, Kansas City, MO
64141-6711 or, unless the investor has specifically declined telephone
exchange privileges on the Account Application or elected in writing not to
utilize telephone exchanges, by a telephone request to the Transfer Agent at
800-526-7384 (7:00 a.m. to 3:00 p.m. Chicago time). Certain procedures are
employed to prevent unauthorized or fraudulent exchange requests as set forth
under "How to Sell Shares of the Funds." Under the telephone exchange
privilege, Shares may be exchanged among accounts with different names,
addresses and social security or other taxpayer identification numbers only if
the exchange instructions are in writing and received in accordance with the
procedures set forth under "How to Sell Shares of the Funds." In times of
drastic economic or market changes the telephone exchange privilege may be
difficult to implement.
 
  For federal income tax purposes, an exchange, including an automatic
exchange, is treated as a redemption of the Shares surrendered in the
exchange, on which an investor may be subject to tax, followed by a purchase
of Shares received in the exchange. If such redemption occurs within ninety
(90) days after the purchase of such Shares, to the extent a sales charge that
would otherwise apply to the Shares received in the exchange is not imposed,
the sales charge paid on such purchase of Class A Shares cannot be taken into
account by the exchanging shareholder for purposes of determining gain or
loss, if any, realized on such redemption for federal income tax purposes, but
instead will be added to the tax basis of the Shares received in the exchange.
Shareholders should consult their own tax advisers concerning the tax
consequences of an exchange.
 
  Eligible investors may exchange certain classes of Shares for another class
of Shares of the same Fund. For further information, call Goldman Sachs at the
number set forth on the back of the Prospectus.
 
  All exchanges which represent an initial investment in a Fund must satisfy
the minimum investment requirements of the Fund into which the Shares are
being exchanged. Exchanges are available only in states where exchanges may
legally be made.
 
OTHER PURCHASE INFORMATION
 
  Authorized Dealers and other financial intermediaries may be authorized to
accept, on the Trust's behalf, purchase, redemption and exchange orders placed
by or on behalf of their customers and, if approved by the Trust, to designate
other intermediaries to accept such orders. In these cases, a Fund will be
deemed to have received an order that is in proper form when the order is
accepted by an Authorized Dealer or intermediary on a Business Day, and the
order will be priced at a Fund's NAV per Share (adjusted for any applicable
sales charge) next determined after such acceptance. Otherwise, a Fund or
Goldman Sachs must receive an order in proper form before it is effective.
Authorized Dealers and intermediaries will be responsible for transmitting
accepted orders to the Funds within the period agreed upon by them. Customers
should contact their Authorized Dealers or intermediaries to learn whether
they are authorized to accept orders for the Trust.
 
  Authorized Dealers and other financial intermediaries provide varying
arrangements for their clients to purchase and redeem Fund Shares. Some may
establish higher minimum investment requirements and others may limit the
availability of certain privileges with respect to the purchase and redemption
of Shares or the
 
                                      52
<PAGE>
 
reinvestment of dividends. Firms may arrange with their clients for other
investment or administrative services and may independently establish and
charge additional fees not described in this Prospectus to their clients for
such services. If Shares of a Fund are held in a "street name" account or were
purchased through an Authorized Dealer, shareholders should contact the
Authorized Dealer to purchase, redeem or exchange Shares, to make changes in
or give instructions concerning the account or to obtain information about the
account.
 
  The Funds and Goldman Sachs each reserves the right to reject any specific
purchase order (including exchanges) or to restrict purchases or exchanges by
a particular purchaser (or group of related purchasers). This may occur, for
example, when a purchaser or a group of purchasers' pattern of frequent
purchases, sales or exchanges of Shares of a Fund is evident, or if purchases,
sales or exchanges are, or a subsequent abrupt redemption might be, of a size
that would disrupt management of a Fund.
 
  In the sole discretion of Goldman Sachs, a Fund may accept securities
instead of cash for the purchase of Shares of the Fund. Such purchases will be
permitted only if the Investment Adviser determines that any securities
acquired in this manner are consistent with the Fund's investment objectives,
restrictions and policies and are desirable investments for the Fund.
 
  The Investment Adviser, Distributor, and/or their affiliates also pay
additional compensation, from time to time, out of their assets and not as an
additional charge to the Funds, to selected Authorized Dealers and other
persons in connection with the sale, distribution and/or servicing of Shares
of the Funds and other Goldman Sachs Funds (such as additional payments based
on new sales, amounts exceeding pre-established thresholds, or the length of
time their customers' assets have remained in a Fund) and, subject to
applicable NASD regulations, contribute to various non-cash and cash incentive
arrangements to promote the sale of Shares, as well as sponsor various
educational programs, sales contests and/or promotions in which participants
may receive reimbursement of expenses, entertainment and prizes such as travel
awards, merchandise, cash, investment research and educational information and
related support materials. This additional compensation can vary among
Authorized Dealers depending upon such factors as the amounts their customers
have invested (or may invest) in particular Goldman Sachs Funds, the
particular program involved, or the amount of reimbursable expenses.
Additional compensation based on sales may, but is currently not expected to,
exceed 0.50% (annualized) of the amount invested. For further information, see
"Other Information Regarding Purchases, Redemptions, Exchanges and Dividends"
in the Additional Statement.
 
 
                        DISTRIBUTION AND SERVICE PLANS
 
  The Trust has adopted distribution and service plans on behalf of the Funds'
Class A, Class B and Class C Shares (each a "Plan"). Under the Plans, Goldman
Sachs is entitled to a monthly fee from each Fund for distribution services
equal, on an annual basis, to 0.25%, 0.75% and 0.75%, respectively, of a
Fund's average daily net assets attributable to Class A, Class B and Class C
Shares, respectively.
 
  Goldman Sachs may use this distribution fee for its expenses of distributing
Class A, Class B and Class C Shares of the Funds. The types of expenses for
which Goldman Sachs may be compensated for distribution services under the
Plans include: compensation paid to and expenses incurred by Authorized
Dealers, Goldman Sachs and their respective officers, employees and sales
representatives; commissions paid to Authorized Dealers; allocable overhead;
telephone and travel expenses; interest expenses and other costs associated
with the
 
                                      53
<PAGE>
 
financing of such compensation and expenses; the printing of prospectuses for
prospective shareholders; preparation and distribution of sales literature and
advertising of any type; and all other expenses incurred in connection with
activities primarily intended to result in the sale of Class A, Class B and
Class C Shares. Goldman Sachs may also use payments under the Class A Plan for
personal and account maintenance services as described below. The aggregate
compensation that may be received under the Plans for distribution services
may not exceed the limitations imposed by the NASD's Conduct Rules. Payments
for distribution services are also subject to the requirements of Rule 12b-1
under the Act.
 
  Under the Plans for Class B and Class C Shares, Goldman Sachs is also
entitled to receive a separate fee equal on an annual basis to 0.25% of each
Fund's average daily net assets attributable to Class B or Class C Shares.
This fee is for personal and account maintenance services, and may be used to
make payments to Goldman Sachs, Authorized Dealers and their officers, sales
representatives and employees for responding to inquiries of, and furnishing
assistance to, shareholders regarding ownership of their Shares or their
accounts or similar services not otherwise provided on behalf of the Funds. If
the distribution or service fees received by Goldman Sachs pursuant to the
Plans exceed its expenses, Goldman Sachs may realize a profit from these
arrangements. The Plans will be reviewed and are subject to approval annually
by the Trustees.
 
  In connection with the sale of Class C Shares, Goldman Sachs begins paying
the 0.75% distribution fee as an ongoing commission, and the 0.25% ongoing
service fee, to Authorized Dealers after the Shares have been held for one
year. All of these fees are paid by Goldman Sachs on a quarterly basis.
 
 
                        HOW TO SELL SHARES OF THE FUNDS
 
  Each Fund will redeem its Shares upon the request of a shareholder on any
Business Day at the NAV next determined after the receipt of such request in
proper form, subject to any applicable CDSC. See "Net Asset Value." Redemption
proceeds will normally be mailed by check to a shareholder within three
Business Days of receipt of a properly executed request. If the Shares to be
redeemed were recently purchased by check, a Fund may delay transmittal of
redemption proceeds until such time as it has assured itself that good funds
have been collected for the purchase of such Shares. This may take up to 15
days. Redemption requests may be made by writing to or calling the Transfer
Agent at the address or telephone number set forth on the back cover page of
this Prospectus or an Authorized Dealer.
 
  The Trust accepts telephone requests for redemption of Shares for amounts up
to $50,000 within any seven calendar day period, except for investors who have
specifically declined telephone redemption privileges on the Account
Application or elected in writing not to utilize telephone redemptions
(proceeds which are sent to a Goldman Sachs brokerage account are not subject
to the $50,000 limit). It may be difficult to implement redemptions by
telephone in times of drastic economic or market changes. By completing an
Account Application, an investor agrees that the Trust, the Distributor and
the Transfer Agent shall not be liable for any loss incurred by the investor
by reason of the Trust accepting unauthorized telephone redemption requests if
the Trust reasonably believes the instructions to be genuine. Thus,
shareholders risk possible losses in the event of a telephone redemption not
authorized by them. The Trust may accept telephone redemption instructions
from any person identifying himself or herself as the owner of an account or
the owner's broker where the owner has not declined in writing to utilize this
service.
 
                                      54
<PAGE>
 
  In an effort to prevent unauthorized or fraudulent redemption and exchange
requests by telephone, Goldman Sachs and NFDS each employ reasonable
procedures specified by the Trust to confirm that such instructions are
genuine. Consequently, proceeds of telephone redemption requests will be sent
only to the shareholder's address of record or authorized bank account
designated in the Account Application and exchanges of Shares will be made
only to an identical account. Telephone requests will also be recorded. The
Trust may implement other procedures from time to time concerning telephone
redemptions and exchanges. If reasonable procedures are not employed, the
Trust may be liable for any loss due to unauthorized or fraudulent
transactions. Proceeds of telephone redemptions will be mailed to the
shareholder's address of record or wired to the authorized bank account
indicated on the Account Application, unless the shareholder provides written
instructions (accompanied by a signature guarantee) indicating another
address. Telephone redemptions will not be accepted during the 30-day period
following any change in a shareholder's address of record. This redemption
option does not apply to Shares held in a "street name" account. Shareholders
whose accounts are held in "street name" should contact their broker of record
who may effect telephone redemptions on their behalf. The Trust reserves the
right to terminate or modify the telephone redemption service at any time.
 
  Written requests for redemptions must be signed by each shareholder with its
signature guaranteed by a bank, a securities broker or dealer, a credit union
having authority to issue signature guarantees, a savings and loan
association, a building and loan association, a cooperative bank, a federal
savings bank or association, a national securities exchange, a registered
securities association or a clearing agency, provided that such institution
satisfies the standards established by the Transfer Agent.
 
  The Funds will also arrange for the proceeds of redemptions effected by any
means to be wired as federal funds to the bank account designated in the
shareholder's Account Application. Redemption proceeds will normally be wired
on the next Business Day in federal funds (for a total of one Business Day
delay) following receipt of a properly executed wire transfer redemption
request. Wiring of redemption proceeds may be delayed one additional Business
Day if the Federal Reserve Bank is closed on the day redemption proceeds would
ordinarily be wired. A transaction fee of $7.50 may be charged for payments of
redemption proceeds by wire. In order to change the bank designated on the
Account Application to receive redemption proceeds, a written request must be
received by the Transfer Agent. This request must be signature guaranteed as
set forth above. Further documentation may be required for executors, trustees
or corporations. Once wire transfer instructions have been given by Goldman
Sachs or an Authorized Dealer, neither a Fund, the Trust, Goldman Sachs nor
any Authorized Dealer assumes any further responsibility for the performance
of intermediaries or the shareholder's bank in the transfer process. If a
problem with such performance arises, the shareholder should deal directly
with such intermediaries or bank.
 
  Additional documentation regarding a redemption by any means may be required
to effect a redemption when deemed appropriate by the Transfer Agent. The
request for such redemption will not be considered to have been received in
proper form until such additional documentation has been received.
 
SYSTEMATIC WITHDRAWAL PLAN
 
  A shareholder may draw on shareholdings systematically via check or ACH in
any amount specified by the shareholder over $50. Checks are only available on
or about the 25th of each month. Each systematic withdrawal is a redemption
and therefore a taxable transaction. A minimum balance of $5,000 in Shares of
a Fund is required. The maintenance of a withdrawal plan concurrently with
purchases of additional Class A, Class B or Class C Shares would be
disadvantageous because of the sales charge imposed on your purchases of Class
A Shares or the imposition of a CDSC on your redemptions of Class A, Class B
or Class C Shares. The CDSC
 
                                      55
<PAGE>
 
applicable to Class A, Class B or Class C Shares redeemed under a systematic
withdrawal plan may be waived. See "How to Invest--Waiver or Reduction of
Contingent Deferred Sales Charge." See the Additional Statement for more
information about the Systematic Withdrawal Plan.
 
 
                                   DIVIDENDS
 
  Each dividend from net investment income and capital gains distributions, if
any, declared by a Fund on its outstanding Shares will, at the election of
each shareholder, be paid in: (i) cash; (ii) additional Shares of the same
class of the Fund; or (iii) Shares of the same or an equivalent class of other
Goldman Sachs Funds or units of the ILA Portfolios (the Prime Obligations
Portfolio only for Class B and Class C), as described under "Cross-
Reinvestment of Dividends and Distributions and Automatic Exchange Program."
This election should initially be made on a shareholder's Account Application
and may be changed upon written notice to Goldman Sachs at any time prior to
the record date for a particular dividend or distribution. If no election is
made, all dividends from net investment income and capital gain distributions
will be reinvested in the applicable Fund.
 
  The election to reinvest dividends and distributions paid by a Fund in
additional Shares or units of the Fund or another Goldman Sachs Fund or ILA
Portfolio will not affect the tax treatment of such dividends and
distributions, which will be treated as received by the shareholder and then
used to purchase Shares or units of the Fund, another Goldman Sachs Fund or an
ILA Portfolio.
 
  Each Fund intends that all or substantially all of its net investment income
and net realized capital gains, after reduction by available capital losses,
including any capital losses carried forward from prior years, will be
declared as dividends for each taxable year. The Balanced, CORE Large Cap
Value and Growth and Income Funds will pay dividends from net investment
income quarterly. Each other Fund will pay dividends at least annually. All of
the Funds will pay dividends from net investment income, and dividends from
net realized capital gains, reduced by available capital losses, at least
annually. From time to time, a portion of any Fund's dividends may constitute
a return of capital.
 
  At the time of an investor's purchase of Shares of a Fund a portion of the
NAV per Share may be represented by undistributed income of the Fund or
realized or unrealized appreciation of the Fund's portfolio securities.
Therefore, subsequent distributions on such Shares from such income or
realized appreciation may be taxable to the investor even if the NAV of the
investor's Shares is, as a result of the distributions, reduced below the cost
of such Shares and the distributions (or portions thereof) represent a return
of a portion of the purchase price.
 
 
                                NET ASSET VALUE
 
  The NAV per Share of each Class of a Fund is calculated by the Fund's
custodian as of the close of regular trading on the New York Stock Exchange
(which is normally, but not always, 3:00 p.m. Chicago time, 4:00 p.m. New York
time), on each Business Day (as such term is defined under "Additional
Information"). The NAV per Share of each Class is calculated by determining
the net assets attributed to each Class and dividing by the number of
outstanding Shares of that Class. Portfolio securities are valued based on
market quotations or, if accurate quotations are not readily available, at
fair value as determined in good faith under procedures established by the
Trustees.
 
                                      56
<PAGE>
 
 
                            PERFORMANCE INFORMATION
 
  From time to time each Fund may publish average annual total return and the
Balanced, CORE Large Cap Value and Growth and Income Funds may publish their
yield and distribution rates in advertisements and communications to
shareholders or prospective investors. Average annual total return is
determined by computing the average annual percentage change in value of
$1,000 invested at the maximum public offering price for specified periods
ending with the most recent calendar quarter, assuming reinvestment of all
dividends and distributions at NAV. The total return calculation assumes a
complete redemption of the investment at the end of the relevant period. Total
return calculations for Class A Shares reflect the effect of paying the
maximum initial sales charge. Investment at a lower sales charge would result
in higher performance figures. Total return calculations for Class B and Class
C Shares reflect deduction of the applicable CDSC imposed upon redemption of
Class B and Class C Shares held for the applicable period. Each Fund may also
from time to time advertise total return on a cumulative, average, year-by-
year or other basis for various specified periods by means of quotations,
charts, graphs or schedules. In addition, each Fund may furnish total return
calculations based on investments at various sales charge levels or at NAV.
Any performance information which is based on a Fund's NAV per Share would be
reduced if any applicable sales charge were taken into account. In addition to
the above, each Fund may from time to time advertise its performance relative
to certain averages, performance rankings, indices, other information prepared
by recognized mutual fund statistical services and investments for which
reliable performance information is available.
 
  The Balanced, CORE Large Cap Value and Growth and Income Funds compute their
yield by dividing net investment income earned during a recent 30 day period
by the product of the average daily number of Shares outstanding and entitled
to receive dividends during the period and the maximum offering price per
Share on the last day of the relevant period. The results are compounded on a
bond equivalent (semi-annual) basis and then annualized. Net investment income
per Share is equal to the dividends and interest earned during the period,
reduced by accrued expenses for the period. The calculation of net investment
income for these purposes may differ from the net investment income determined
for accounting purposes. The Balanced, CORE Large Cap Value and Growth and
Income Funds' quotations of distribution rate are calculated by annualizing
the most recent distribution of net investment income for a monthly, quarterly
or other relevant period and dividing this amount by the NAV per Share on the
last day of the period for which the distribution rate is being calculated.
 
  Each Fund's yield, total return and distribution rate will be calculated
separately for each Class of Shares in existence. Because each Class of Shares
may be subject to different expenses, the yield, total return and distribution
rate calculations with respect to each Class of Shares for the same period
will differ. The investment performance of the Class A, Class B and Class C
Shares will be affected by the payment of a sales charge, distribution and
service fees and other Class specific expenses. See "Shares of the Trust."
 
  The Funds' performance quotations do not reflect any fees charged by an
Authorized Dealer to its customer accounts in connection with investments in
the Funds. The investment results of a Fund will fluctuate over time and any
presentation of investment results for any prior period should not be
considered a representation of what an investment may earn or what the Fund's
performance may be in any future period. In addition to information provided
in shareholder reports, the Funds may, in their discretion, from time to time,
make a list of their holdings available to investors upon request.
 
                                      57
<PAGE>
 
 
                              SHARES OF THE TRUST
 
  Goldman Sachs Trust was formed under the laws of the State of Delaware on
January 28, 1997. On April 30, 1997, Goldman Sachs Equity Portfolios, Inc., a
Maryland corporation was reorganized into the Trust. The Trustees have
authority under the Trust's Declaration of Trust to create and classify Shares
of beneficial interest in separate series, without further action by
shareholders. Additional series may be added in the future. The Trustees also
have authority to classify and reclassify any series or portfolio of Shares
into one or more Classes. Information about the Trust's other series and
Classes is contained in separate prospectuses.
 
  When issued, Shares are fully paid and non-assessable. In the event of
liquidation, shareholders of each class are entitled to share pro rata in the
net assets of the applicable Fund available for distribution to the
shareholders of such class. All Shares are freely transferable and have no
preemptive, subscription or conversion rights. Shareholders are entitled to
one vote per Share, provided that at the option of the Trustees, shareholders
will be entitled to a number of votes based upon the NAVs represented by their
Shares.
 
  The Trust does not intend to hold annual meetings of shareholders. However,
recordholders may, under certain circumstances, as permitted by the Act,
communicate with other shareholders in connection with requiring a special
meeting of shareholders. The Trustees will call a special meeting of
shareholders for the purpose of electing Trustees if, at any time, less than a
majority of Trustees holding office at the time were elected by shareholders.
 
  In the interest of economy and convenience, the Trust does not issue
certificates representing the Funds' Shares. Instead, the Transfer Agent
maintains a record of each shareholder's ownership. Each shareholder receives
confirmation of purchase and redemption orders from the Transfer Agent. Fund
Shares and any dividends and distributions paid by the Funds are reflected in
account statements from the Transfer Agent.
 
 
                                   TAXATION
 
FEDERAL TAXES
 
  Each Fund is treated as a separate entity for tax purposes. The CORE Large
Cap Value Fund intends to elect and each other Fund has elected to be treated
as a regulated investment company, and each Fund intends to continue to
qualify for such treatment for each taxable year under Subchapter M of the
Code. To qualify as such, a Fund must satisfy certain requirements relating to
the sources of its income, diversification of its assets and distribution of
its income to shareholders. As a regulated investment company, a Fund will not
be subject to federal income or excise tax on any net investment income and
net realized capital gains that are distributed to its shareholders in
accordance with certain timing requirements of the Code.
 
  Dividends paid by a Fund from net investment income, certain net realized
foreign exchange gains, the excess of net short-term capital gain over net
long-term capital loss and original issue discount or market discount income
will be taxable to shareholders as ordinary income. Distributions out of the
net capital gain (the excess of net long-term capital gain over net short-term
capital loss), if any, of a Fund will be taxed to shareholders as long-term
capital gains, regardless of the length of time a shareholder has held his or
her Shares or whether such gain was reflected in the price paid for the
Shares. These tax consequences will apply whether distributions are
 
                                      58
<PAGE>
 
received in cash or reinvested in Shares. A Fund's dividends that are paid to
its corporate shareholders and are attributable to qualifying dividends such
Fund receives from U.S. domestic corporations may be eligible, in the hands of
such corporate shareholders, for the corporate dividends-received deduction,
subject to certain holding period requirements and debt financing limitations
under the Code. Certain distributions paid by a Fund in January of a given
year may be taxable to shareholders as if received the prior December 31.
Shareholders will be informed annually about the amount and character of
distributions received from the Funds for federal income tax purposes.
 
  Investors should consider the tax implications of buying Shares immediately
prior to a distribution. Investors who purchase Shares shortly before the
record date for a distribution will pay a per Share price that includes the
value of the anticipated distribution and will be taxed on the distribution
even though the distribution represents a return of a portion of the purchase
price.
 
  Redemptions and exchanges of Shares are taxable events.
 
  Individuals and certain other classes of shareholders may be subject to 31%
backup withholding of federal income tax on distributions, redemptions and
exchanges if they fail to furnish their correct taxpayer identification number
and certain certifications required by the Internal Revenue Service or if they
are otherwise subject to backup withholding. Individuals, corporations and
other shareholders that are not U.S. persons under the Code are subject to
different tax rules and may be subject to nonresident alien withholding at the
rate of 30% (or a lower rate provided by an applicable tax treaty, if any) on
amounts treated as ordinary dividends from the Funds.
 
  Each Fund may be subject to foreign withholding or other foreign taxes on
income or gain from certain foreign securities. In general, the Funds do not
anticipate that they will be eligible to pass any foreign tax credits through
to their shareholders; however, the Funds may deduct these taxes in computing
their taxable income, if any.
 
OTHER TAXES
 
  In addition to federal taxes, a shareholder may be subject to state, local
or foreign taxes on payments received from the Funds. A state income (and
possibly local income and/or intangible property) tax exemption may be
available to the extent (if any) a Fund's distributions are derived from
interest on (or, in the case of intangible property taxes, the value of its
assets is attributable to) certain U.S. Government obligations, provided in
some states that certain thresholds for holdings of such obligations and/or
reporting requirements are satisfied. For a further discussion of certain tax
consequences of investing in Shares of the Funds, see "Taxation" in the
Additional Statement. Shareholders are urged to consult their own tax advisers
regarding specific questions as to federal, state and local taxes as well as
to any foreign taxes.
 
 
                            ADDITIONAL INFORMATION
 
  As used in this Prospectus, the term "Business Day" means any day the New
York Stock Exchange is open for trading, which is Monday through Friday except
for holidays. The New York Stock Exchange is closed on the following holidays:
New Year's Day, Martin Luther King, Jr. Day, Presidents' Day (observed), Good
Friday, Memorial Day (observed), Independence Day, Labor Day, Thanksgiving Day
and Christmas Day.
 
                                      59
<PAGE>
 
 
                                  APPENDIX A
 
                            STATEMENT OF INTENTION
    (APPLICABLE ONLY TO CLASS A SHARES PURCHASED SUBJECT TO A SALES CHARGE)
 
  If a shareholder anticipates purchasing $50,000 or more of Class A Shares of
a Fund alone or in combination with Class A Shares of another Fund or another
Goldman Sachs Fund within a 13-month period, the shareholder may obtain Shares
of the Fund at the same reduced sales charge as though the total quantity were
invested in one lump sum by filing this Statement of Intention incorporated by
reference in the Account Application. Income dividends and capital gain
distributions taken in additional Shares will not apply toward the completion
of this Statement of Intention.
 
  To ensure that the reduced price will be received on future purchases, the
investor must inform Goldman Sachs that this Statement of Intention is in
effect each time Shares are purchased. Subject to the conditions mentioned
below, each purchase will be made at the public offering price applicable to a
single transaction of the dollar amount specified on the Account Application.
The investor makes no commitment to purchase additional Shares, but if the
investor's purchases within 13 months plus the value of Shares credited toward
completion do not total the sum specified, the investor will pay the increased
amount of the sales charge prescribed in the Escrow Agreement.
 
                               ESCROW AGREEMENT
 
  Out of the initial purchase (or subsequent purchases if necessary), 5% of
the dollar amount specified on the Account Application shall be held in escrow
by the Transfer Agent in the form of Shares registered in the investor's name.
All income dividends and capital gains distributions on escrowed Shares will
be paid to the investor or to his or her order. When the minimum investment so
specified is completed (either prior to or by the end of the 13th month), the
investor will be notified and the escrowed Shares will be released. In signing
the Account Application, the investor irrevocably constitutes and appoints the
Transfer Agent his or her attorney to surrender for redemption any or all
escrowed Shares with full power of substitution in the premises.
 
  If the intended investment is not completed, the investor will be asked to
remit to Goldman Sachs any difference between the sales charge on the amount
specified and on the amount actually attained. If the investor does not within
20 days after written request by Goldman Sachs pay such difference in the
sales charge, the Transfer Agent will redeem an appropriate number of the
escrowed Shares in order to realize such difference. Shares remaining after
any such redemption will be released by the Transfer Agent.
 
                                      A-1
<PAGE>
 
- --------------------------------------------------------------------------------
 
GOLDMAN SACHS ASSET
MANAGEMENT
ONE NEW YORK PLAZA
NEW YORK, NEW YORK 10004
 
GOLDMAN SACHS FUNDS
MANAGEMENT, L.P.
ONE NEW YORK PLAZA
NEW YORK, NEW YORK 10004
 
GOLDMAN, SACHS & CO.
DISTRIBUTOR
85 BROAD STREET
NEW YORK, NEW YORK 10004
 
GOLDMAN, SACHS & CO.
TRANSFER AGENT
4900 SEARS TOWER
CHICAGO, ILLINOIS 60606
 
STATE STREET BANK AND TRUST COMPANY
CUSTODIAN
1776 HERITAGE DRIVE
NORTH QUINCY, MASSACHUSETTS 02171
 
ARTHUR ANDERSEN LLP
INDEPENDENT PUBLIC ACCOUNTANTS
225 FRANKLIN STREET
BOSTON, MA 02110
 
TOLL FREE (IN U.S.) . . . . . . . . 800-526-7384
 
EQDOMPROABC
501416
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
GOLDMAN SACHS DOMESTIC
 
EQUITY FUNDS
 
- --------------------------------------------------------------------------------
 
PROSPECTUS
 
CLASS A, B AND C SHARES
 
 
 
LOGO
Goldman
Sachs
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
 
                              GOLDMAN SACHS TRUST
 
                      GOLDMAN SACHS DOMESTIC EQUITY FUNDS
 
                             INSTITUTIONAL SHARES
 
                             ---------------------
 
                     SUPPLEMENT DATED JANUARY 20, 1999 TO
                  PROSPECTUS ORIGINALLY DATED JANUARY 8, 1999
                      AND HEREBY REDATED JANUARY 20, 1999
                    GOLDMAN SACHS CORE LARGE CAP VALUE FUND
   PRIOR PERFORMANCE OF SIMILARLY ADVISED ACCOUNTS OF THE INVESTMENT ADVISER
<TABLE>
<CAPTION>
                                                         CORE LARGE
                                                         CAP VALUE  RUSSELL 1000
                                                         COMPOSITE  VALUE INDEX
                                                         ---------- ------------
<S>                                                      <C>        <C>
1998....................................................       %           %
1997....................................................       %           %
1996....................................................       %           %
1995....................................................       %           %
1994....................................................       %           %
1993....................................................       %           %
8/1/92-12/31/92.........................................       %           %
</TABLE>
<TABLE>
<CAPTION>
                                       AVERAGE ANNUAL
                                        TOTAL RETURN
                         -------------------------------------------
                          ONE YEAR   3 YEARS    5 YEARS     SINCE
                           ENDED      ENDED      ENDED    INCEPTION
                         12/31/1998 12/31/1998 12/31/1998 (8/1/1992)
                         ---------- ---------- ---------- ----------
<S>                      <C>        <C>        <C>        <C>        <C>
CORE Large Cap Value
 Composite..............       %          %          %          %
Russell 1000
 Value Index............       %          %          %          %
</TABLE>
  The preceding table sets forth the Investment Adviser's composite
performance data relating to the historical performance of all discretionary
private accounts managed by the Investment Adviser that have investment
objectives, policies, and strategies substantially similar to the CORE Large
Cap Value Fund. The information is provided to illustrate the past performance
of the Investment Adviser in managing substantially similar accounts as
measured against the Russell 1000 Value Index and does not represent the
performance of the CORE Large Cap Value Fund. Investors should not consider
this performance data as a substitute for the performance of the CORE Large
Cap Value Fund nor should investors consider this data as an indication of
future performance of the CORE Large Cap Value Fund or of the Investment
Adviser. The Russell 1000 Value Index is unmanaged and investors cannot invest
directly in the index.
 
  In accordance with the standards of the Association for Investment
Management and Research ("AIMR"), the Investment Adviser's composite
performance data was calculated on a time-weighted and asset-weighted total
return basis which includes realized and unrealized gains and losses plus
income. Total return performance of the CORE Large Cap Value Fund will be
calculated in accordance with the regulations of the SEC. The SEC standardized
average annual total return is neither time-weighted nor asset-weighted and is
determined for specified periods by computing the annual percentage change in
the value of an initial amount that is invested in a share class of the Fund
at the maximum public offering price. Investors should be aware that the
differences in methodology between AIMR and SEC requirements could result in
different performance data for identical time periods.
 
  The actual expenses of the private accounts included in the composite were
lower than the estimated expenses of the Fund. Accordingly, the performance
record of the composite has been adjusted downward based on the estimated
expenses of the Institutional Shares of the CORE Large Cap Value Fund during
its first year of operations. All returns presented reflect the reinvestment
of
<PAGE>
 
dividends and other earnings. The private accounts are not subject to the same
diversification requirements, specific tax restrictions and investment
limitations imposed on the CORE Large Cap Value Fund by the Investment Company
Act of 1940 and Subchapter M of the Internal Revenue Code. Consequently, the
performance results of the Investment Adviser's composite could have been
adversely affected if the private accounts had been regulated as investment
companies under the federal securities laws.
<PAGE>
 
- --------------------------------------------------------------------------------
PROSPECTUS
 
                      GOLDMAN SACHS DOMESTIC EQUITY FUNDS
January 8, 1999               INSTITUTIONAL SHARES
 
 
GOLDMAN SACHS BALANCED FUND         GOLDMAN SACHS CORE SMALL CAP
 Seeks long-term capital growth     EQUITY FUND
 and current income through in-       Seeks long-term growth of capital
 vestments in equity and fixed-       through a broadly diversified portfolio
 income securities.                   of equity securities of U.S. issuers
                                      which are included in the Russell 2000
GOLDMAN SACHS GROWTH AND INCOME       Index at the time of investment.
FUND
 Seeks long-term growth of cap-     GOLDMAN SACHS CAPITAL GROWTH FUND
 ital and growth of income            Seeks long-term growth of capital
 through investments in equity        through diversified investments in eq-
 securities that are considered       uity securities of companies that are
 to have favorable prospects          considered to have long-term capital ap-
 for capital appreciation             preciation potential.
 and/or dividend paying abili-
 ty.                                GOLDMAN SACHS MID CAP EQUITY FUND
                                      Seeks long-term capital appreciation
GOLDMAN SACHS CORE LARGE CAP          primarily through investments in equity
VALUE FUND                            securities of companies with public
 Seeks long-term growth of cap-       stock market capitalizations within the
 ital and dividend income             range of the market capitalization of
 through a broadly diversified        companies constituting the Russell
 portfolio of equity securities       Midcap Index at the time of investment
 of large cap U.S. issuers that       (currently between $400 million and $16
 are selling at low to modest         billion).
 valuations relative to general
 market measures and that are       GOLDMAN SACHS SMALL CAP VALUE FUND
 expected to have favorable           Seeks long-term capital growth through
 prospects for capital appreci-       investments in equity securities of com-
 ation and/or dividend-paying         panies with public stock market capital-
 ability.                             izations of $1 billion or less at the
                                      time of investment.
GOLDMAN SACHS CORE U.S. EQUITY
FUND
 Seeks long-term growth of cap-
 ital and dividend income
 through a broadly diversified
 portfolio of large cap and
 blue chip equity securities
 representing all major sectors
 of the U.S. economy.
 
GOLDMAN SACHS CORE LARGE CAP
GROWTH FUND
 Seeks long-term growth of cap-
 ital through a broadly diver-
 sified portfolio of equity se-
 curities of large cap U.S. is-
 suers that are expected to
 have better prospects for
 earnings growth than the
 growth rate of the general do-
 mestic economy. Dividend in-
 come is a secondary considera-
 tion.
 
                               -----------------
 
 
INSTITUTIONAL SHARES OF THE FUNDS ARE NOT DEPOSITS OR OBLIGATIONS OF, OR
GUARANTEED OR ENDORSED BY, ANY BANK OR OTHER INSURED DEPOSITORY INSTITUTION AND
ARE NOT INSURED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION, THE FEDERAL
RESERVE BOARD OR ANY OTHER GOVERNMENT AGENCY. AN INVESTMENT IN A FUND INVOLVES
INVESTMENT RISKS, INCLUDING POSSIBLE LOSS OF PRINCIPAL.
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS
A CRIMINAL OFFENSE.
 
                                                        (continued on next page)
<PAGE>
 
(cover continued)
 
  Goldman Sachs Asset Management ("GSAM"), New York, New York, a separate
operating division of Goldman, Sachs & Co. ("Goldman Sachs"), serves as
investment adviser to the Balanced, Growth and Income, CORE Large Cap Value,
CORE Large Cap Growth, CORE Small Cap Equity, Mid Cap Equity and Small Cap
Value (formerly "Small Cap Equity") Funds. Goldman Sachs Funds Management,
L.P. ("GSFM"), New York, New York, an affiliate of Goldman Sachs, serves as
investment adviser to the CORE U.S. Equity (formerly the "Select Equity Fund")
and Capital Growth Funds. GSAM and GSFM are each referred to in this
Prospectus as the "Investment Adviser." Goldman Sachs serves as each Fund's
distributor and transfer agent.
 
  This Prospectus provides information about Goldman Sachs Trust (the "Trust")
and the Funds that a prospective investor should understand before investing.
This Prospectus should be retained for future reference. A Statement of
Additional Information (the "Additional Statement"), dated January 8, 1999,
containing further information about the Trust and the Funds which may be of
interest to investors, has been filed with the Securities and Exchange
Commission ("SEC"), is incorporated herein by reference in its entirety, and
may be obtained without charge from Goldman Sachs by calling the telephone
number, or writing to one of the addresses, listed on the back cover of this
Prospectus. The SEC maintains a Web site (http://www.sec.gov) that contains
the Additional Statement and other information regarding the Trust.
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                     PAGE
                                     ----
<S>                                  <C>
Fund Highlights....................    3
Fees and Expenses..................    7
Financial Highlights...............    9
Investment Objectives and Policies.   17
Description of Securities..........   22
Investment Techniques..............   28
Risk Factors.......................   32
Investment Restrictions............   34
Portfolio Turnover.................   34
Management.........................   34
Expenses...........................   39
Net Asset Value....................   40
</TABLE>
<TABLE>
<CAPTION>
                                     PAGE
                                     ----
<S>                                  <C>
Performance Information............   40
Shares of the Trust................   41
Taxation...........................   42
Additional Information.............   43
Reports to Shareholders............   44
Dividends..........................   44
Purchase of Institutional Shares...   44
Exchange Privilege.................   47
Redemption of Institutional Shares.   47
Appendix A.........................  A-1
Account Information Form
</TABLE>
 
                                       2
<PAGE>
 
 
                                FUND HIGHLIGHTS
 
   The following is intended to highlight certain information and is
 qualified in its entirety by the more detailed information contained in
 this Prospectus.
 
  WHAT IS THE GOLDMAN SACHS TRUST?
 
   The Goldman Sachs Trust is an open-end management investment company
 that offers its shares ("Shares") in several investment funds (commonly
 known as mutual funds (the "Funds")). Each Fund pools the monies of
 investors by selling its Shares to the public and investing these monies
 in a portfolio of securities designed to achieve that Fund's stated
 investment objectives.
 
  WHAT ARE THE INVESTMENT OBJECTIVES AND POLICIES OF THE FUNDS?
 
   Each Fund has distinct investment objectives and policies. There can be
 no assurance that a Fund's objectives will be achieved. Each Fund is a
 "diversified open-end management company" as defined in the Investment
 Company Act of 1940, as amended (the "Act"). For a further description of
 each Fund's investment objectives and policies, see "Investment
 Objectives and Policies," "Description of Securities" and "Investment
 Techniques."
 
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION> 
                INVESTMENT
 FUND NAME      OBJECTIVES               INVESTMENT CRITERIA                BENCHMARK
 ---------      ----------------  ---------------------------------------   ---------
<S>          <C>               <C>                                      <C>
 BALANCED    Long-term         Between 45% and 65% of total assets in   Lehman Aggregate
 FUND        capital growth    equity securities and at least 25% in    Bond Index and
             and current       fixed-income senior securities.          the Standard &
             income.                                                    Poor's Index of
                                                                        500 Common
                                                                        Stocks (the "S&P
                                                                        500 Index")
- ----------------------------------------------------------------------------------------
 GROWTH AND  Long-term growth  At least 65% of total assets in equity   S&P 500 Index
 INCOME FUND of capital and    securities that the Investment Adviser
             growth of         considers to have favorable prospects
             income.           for capital appreciation and/or
                               dividend-paying ability.
- ----------------------------------------------------------------------------------------
 CORE LARGE  Long-term growth  At least 90% of total assets in equity   Russell 1000
 CAP VALUE   of capital and    securities of U.S. issuers, including    Value Index
 FUND        dividend income.  certain foreign issuers traded in the
                               U.S. The Fund seeks to achieve its
                               objective through a broadly diversified
                               portfolio of equity securities of large
                               cap U.S. issuers that are selling at
                               low to modest valuations relative to
                               general market measures such as
                               earnings, book value and other
                               fundamental accounting measures, and
                               that are expected to have favorable
                               prospects for capital appreciation
                               and/or dividend-paying ability. The
                               Fund's investments are selected using
                               both a variety of quantitative
                               techniques and fundamental research in
                               seeking to maximize the Fund's expected
                               return, while maintaining risk, style,
                               capitalization and industry
                               characteristics similar to the Russell
                               1000 Value Index.
- ----------------------------------------------------------------------------------------
 CORE U.S.   Long-term growth  At least 90% of total assets in equity   S&P 500 Index
 EQUITY FUND of capital and    securities of U.S. issuers, including
             dividend income.  certain foreign issuers traded in the
                               U.S. The Fund seeks to achieve its
                               objective through a broadly diversified
                               portfolio of large cap and blue chip
                               equity securities representing all
                               major sectors of the U.S. economy. The
                               Fund's investments are selected using
                               both a variety of quantitative
                               techniques and fundamental research in
                               seeking to maximize the Fund's
                               expected return, while maintaining
                               risk, style, capitalization and
                               industry characteristics similar to the
                               S&P 500 Index.
- ----------------------------------------------------------------------------------------
</TABLE>
                                                                     (continued)
 
                                       3
<PAGE>
 
<TABLE>
<S>          <C>               <C>                                      <C>
                INVESTMENT
 FUND NAME      OBJECTIVES               INVESTMENT CRITERIA                BENCHMARK
 ---------   ----------------  -----------------------------------      -------------
 CORE LARGE  Long-term growth  At least 90% of total assets in equity   Russell 1000
 CAP GROWTH  of capital.       securities of U.S. issuers, including    Growth Index
 FUND        Dividend income   certain foreign issuers traded in the
             is a secondary    U.S. The Fund seeks to achieve its
             consideration.    objective through a broadly diversified
                               portfolio of equity securities of large
                               cap U.S. issuers that are expected to
                               have better prospects for earnings
                               growth than the growth rate of the
                               general domestic economy. The Fund's
                               investments are selected using both a
                               variety of quantitative techniques and
                               fundamental research in seeking to
                               maximize the Fund's expected returns,
                               while maintaining risk, style,
                               capitalization and industry
                               characteristics similar to the Russell
                               1000 Growth Index.
- --------------------------------------------------------------------------------------
 CORE SMALL  Long-term growth  At least 90% of total assets in equity   Russell 2000
 CAP EQUITY  of capital.       securities of U.S. issuers, including    Index
 FUND                          certain foreign issuers traded in the
                               U.S. The Fund seeks to achieve its
                               investment objective through a broadly
                               diversified portfolio of equity
                               securities of U.S. issuers which are
                               included in the Russell 2000 Index at
                               the time of investment. The Fund's
                               investments are selected using both a
                               variety of quantitative techniques and
                               fundamental research in seeking to
                               maximize the Fund's expected return,
                               while maintaining risk, style,
                               capitalization and industry
                               characteristics similar to the Russell
                               2000 Index.
- --------------------------------------------------------------------------------------
 CAPITAL     Long-term         At least 90% of total assets in a        S&P 500 Index
 GROWTH FUND capital growth.   diversified portfolio of equity
                               securities. The Investment Adviser
                               considers long-term capital
                               appreciation potential in selecting
                               investments.
- --------------------------------------------------------------------------------------
 MID CAP     Long-term         At least 65% of total assets in          Russell Midcap
 EQUITY FUND capital           equity securities of companies with      Index
             appreciation.     public stock market capitalizations
                               within the range of the market
                               capitalization of companies
                               constituting the Russell Midcap Index
                               at the time of investment (currently
                               between $400 million and $16 billion)
                               ("Mid-Cap Companies").
- --------------------------------------------------------------------------------------
 SMALL CAP   Long-term         At least 65% of total assets in equity   Russell 2000
 VALUE FUND  capital growth.   securities of companies with public
                               stock market capitalizations of $1
                               billion or less at the time of
                               investment.
</TABLE>
 
 
 WHAT ARE THE RISK FACTORS AND SPECIAL CHARACTERISTICS THAT I SHOULD CONSIDER
 BEFORE INVESTING?
 
  Each Fund's Share price will fluctuate with market, economic and, to the
extent applicable, foreign exchange conditions, so that an investment in
any of the Funds may be worth more or less when redeemed than when
purchased. None of the Funds should be relied upon as a complete investment
program. There can be no assurance that a Fund's investment objectives will
be achieved. See "Risk Factors."
 
  Risks of Investing in Small Capitalization Companies. To the extent that
a Fund invests in the securities of small market capitalization companies,
the Fund may be exposed to a higher degree of risk and price volatility.
Securities of such issuers may lack sufficient market liquidity to enable a
Fund to effect sales at an advantageous time or without a substantial drop
in price.
 
                                       4
<PAGE>
 
 
  Foreign Risks. Investments in securities of foreign issuers and
currencies involve risks that are different from those associated with
investments in domestic securities. The risks associated with foreign
investments and currencies include changes in relative currency exchange
rates, political and economic developments, the imposition of exchange
controls, confiscation and other governmental restrictions. Generally,
there is less availability of data on foreign companies and securities
markets as well as less regulation of foreign stock exchanges, brokers and
issuers. A Fund's investments in emerging markets and countries ("Emerging
Countries") involves greater risks than investments in the developed
countries of Western Europe, the United States, Canada, Australia, New
Zealand and Japan.
 
  Other. A Fund's use of certain investment techniques, including
derivatives, forward contracts, options and futures, will subject the Fund
to greater risk than funds that do not employ such techniques.
 
 WHO MANAGES THE FUNDS?
 
   Goldman Sachs Asset Management serves as Investment Adviser to the
 Balanced, Growth and Income, CORE Large Cap Value, CORE Large Cap Growth,
 CORE Small Cap Equity, Mid Cap Equity and Small Cap Value Funds. Goldman
 Sachs Funds Management, L.P. serves as Investment Adviser to the CORE
 U.S. Equity and Capital Growth Funds. As of November 20, 1998, the
 Investment Adviser, together with its affiliates, acted as investment
 adviser or distributor for assets in excess of $188 billion.
 
 WHO DISTRIBUTES THE FUNDS' SHARES?
 
   Goldman Sachs acts as distributor of each Fund's Shares (the
 "Distributor").
 
 WHAT IS THE MINIMUM INVESTMENT?
 
  The minimum initial investment is $1,000,000 or $10,000,000 (depending
upon an investor's eligibility) in Institutional Shares of a Fund alone or
in combination with Institutional Shares (or the corresponding class) of
any other mutual fund sponsored by Goldman Sachs and designated as an
eligible fund for this purpose.
 
 HOW DO I PURCHASE INSTITUTIONAL SHARES?
 
  You may purchase Institutional Shares of the Funds through Goldman Sachs.
Institutional Shares are purchased at the current net asset value ("NAV")
without any sales load. See "Purchase of Institutional Shares."
 
 HOW DO I SELL MY INSTITUTIONAL SHARES?
 
  You may redeem Institutional Shares upon request on any Business Day, as
defined under "Additional Information," at the NAV next determined after
receipt of such request in proper form. See "Redemption of Institutional
Shares."
 
                                       5
<PAGE>
 
 
 HOW DO I RECEIVE DIVIDENDS AND DISTRIBUTIONS?
 
 
<TABLE>
<CAPTION>
                                       INVESTMENT INCOME DIVIDENDS
                                       --------------------------- CAPITAL GAINS
FUND                                        DECLARED AND PAID      DISTRIBUTIONS
- ----                                        -----------------      -------------
<S>                                    <C>                         <C>
Balanced..............................          Quarterly            Annually
Growth and Income.....................          Quarterly            Annually
CORE Large Cap Value..................          Quarterly            Annually
CORE U.S. Equity......................           Annually            Annually
CORE Large Cap Growth.................           Annually            Annually
CORE Small Cap Equity.................           Annually            Annually
Capital Growth........................           Annually            Annually
Mid Cap Equity........................           Annually            Annually
Small Cap Value.......................           Annually            Annually
</TABLE>
 
  Recordholders of Institutional Shares may receive dividends and
distributions in additional Institutional Shares of the Fund in which they
have invested or may elect to receive them in cash. For further information
concerning dividends and distributions, see "Dividends."
 
                                       6
<PAGE>
 
                               FEES AND EXPENSES
                            (INSTITUTIONAL SHARES)
 
<TABLE>
<CAPTION>
                                          CORE              CORE   CORE
                                   GROWTH LARGE            LARGE  SMALL           MID   SMALL
                                    AND    CAP   CORE U.S.  CAP    CAP   CAPITAL  CAP    CAP
                          BALANCED INCOME VALUE   EQUITY   GROWTH EQUITY GROWTH  EQUITY VALUE
                            FUND    FUND  FUND     FUND     FUND   FUND   FUND    FUND  FUND
                          -------- ------ -----  --------- ------ ------ ------- ------ -----
<S>                       <C>      <C>    <C>    <C>       <C>    <C>    <C>     <C>    <C>
SHAREHOLDER TRANSACTION
 EXPENSES:
 Maximum Sales Charge
  Imposed on Purchases..    None    None  None     None     None   None   None    None  None
 Maximum Sales Charge
  Imposed on Reinvested
  Dividends.............    None    None  None     None     None   None   None    None  None
 Redemption Fees........    None    None  None     None     None   None   None    None  None
 Exchange Fees..........    None    None  None     None     None   None   None    None  None
ANNUAL FUND OPERATING
 EXPENSES:
 (as a percentage of
 average daily net
 assets)/1/
 Management Fees (after
  waivers and
  reimbursements)/2/....    0.65%   0.70% 0.60%    0.70%    0.60%  0.85%  1.00%   0.75% 1.00%
 Distribution Fees......    None    None  None     None     None   None   None    None  None
 Other Expenses (after
  waivers and
  reimbursements)/3/....    0.05%   0.09% 0.04%    0.04%    0.04%  0.08%  0.04%   0.14% 0.10%
                            ----    ----  ----     ----     ----   ----   ----    ----  ----
TOTAL FUND OPERATING
 EXPENSES (AFTER WAIVERS
 AND
 REIMBURSEMENTS)/4/.....    0.70%   0.79% 0.64%    0.74%    0.64%  0.93%  1.04%   0.89% 1.10%
                            ====    ====  ====     ====     ====   ====   ====    ====  ====
</TABLE>
- ---------------------
/1/ The Funds' annual operating expenses have been restated to reflect fees
    and expenses in effect as of September 1, 1998, except for the CORE Large
    Cap Value Fund which are based on estimated amounts for the current fiscal
    year.
/2/ The Investment Adviser has voluntarily agreed not to impose a portion of
    the management fee on the CORE U.S. Equity and CORE Large Cap Growth Funds
    equal to 0.05% and 0.15%, respectively. Without such limitations,
    management fees would be 0.75% of each Fund's average daily net assets.
/3/ The Investment Adviser has voluntarily agreed to reduce or limit certain
    other expenses (excluding management fees, transfer agency fees (equal to
    0.04% of the average daily net assets of each Fund's Institutional
    Shares), taxes, interest and brokerage fees and litigation,
    indemnification and other extraordinary expenses) for each Fund to the
    extent such expenses exceed the following percentages of average daily net
    assets:
<TABLE>
<CAPTION>
                                                                         OTHER
                                                                        EXPENSES
                                                                        --------
      <S>                                                               <C>
      Balanced.........................................................   0.01%
      Growth and Income................................................   0.05%
      CORE Large Cap Value.............................................   0.00%
      CORE U.S. Equity.................................................   0.00%
      CORE Large Cap Growth............................................   0.00%
      CORE Small Cap Equity............................................   0.04%
      Capital Growth...................................................   0.00%
      Mid Cap Equity...................................................   0.10%
      Small Cap Value..................................................   0.06%
</TABLE>
 
/4/ Without the limitations described above, "Other Expenses" and "Total
    Operating Expenses" of the Institutional Shares of the Funds would be as
    set forth below:
<TABLE>
<CAPTION>
                                                                         TOTAL
                                                               OTHER   OPERATING
                                                              EXPENSES EXPENSES
                                                              -------- ---------
      <S>                                                     <C>      <C>
      Balanced...............................................   0.28%    0.93%
      Growth and Income......................................   0.12%    0.82%
      CORE Large Cap Value...................................   0.56%    1.16%
      CORE U.S. Equity.......................................   0.12%    0.87%
      CORE Large Cap Growth..................................   0.22%    0.97%
      CORE Small Cap Equity..................................   0.48%    1.33%
      Capital Growth.........................................   0.10%    1.10%
      Mid Cap Equity.........................................   0.16%    0.91%
      Small Cap Value........................................   0.13%    1.13%
</TABLE>
 
 
                                       7
<PAGE>
 
<TABLE>
<CAPTION>
EXAMPLE:                                       1 YEAR 3 YEARS 5 YEARS 10 YEARS
- --------                                       ------ ------- ------- --------
<S>                                            <C>    <C>     <C>     <C>
You would pay the following expenses on a hy-
 pothetical $1,000 investment, assuming (1) a
 5% annual return and (2) redemption at the
 end of each time period:
Balanced......................................  $ 7     $22     $39     $87
Growth and Income.............................    8      25      44      98
CORE Large Cap Value..........................    7      20     N/A     N/A
CORE U.S. Equity..............................    8      24      41      92
CORE Large Cap Growth.........................    7      20      36      80
CORE Small Cap Equity.........................    9      30      51     114
Capital Growth................................   11      33      57     127
Mid Cap Equity................................    9      28      49     110
Small Cap Value...............................   11      35      61     134
</TABLE>
 
  The Investment Adviser and Goldman Sachs may modify or discontinue any of
the limitations set forth above in the future at their discretion. The
information set forth in the foregoing table and hypothetical example relates
only to Institutional Shares of the Funds. Each Fund also offers Service
Shares and Class A, Class B and Class C Shares, which are subject to different
fees and expenses (which affect performance), have different minimum
investment requirements and are entitled to different services. Information
regarding Service, Class A, Class B and Class C Shares may be obtained from an
investor's sales representative or from Goldman Sachs by calling the number on
the back cover of this Prospectus.
 
  Institutions that invest in Institutional Shares on behalf of their
customers may charge fees directly to their customer accounts in connection
with their investments. Such fees, if any, may affect the return such
customers realize with respect to their investments.
 
  Certain institutions may also receive other compensation in connection with
the sales and distribution of Institutional Shares or for services to their
customer's accounts and/or the Funds. For additional information regarding
such compensation, see "Purchase of Institutional Shares" in the Prospectus
and the Additional Statement.
 
  The purpose of the foregoing table is to assist investors in understanding
the various fees and expenses of a Fund that an investor will bear directly or
indirectly. The information on the fees and expenses included in the table and
hypothetical example above are based on each Fund's fees and expenses (actual
or estimated) and should not be considered as representative of past or future
expenses. Actual fees and expenses may be greater or less than those
indicated. Moreover, while the example assumes a 5% annual return, a Fund's
actual performance will vary and may result in an actual return greater or
less than 5%. See "Management--Investment Advisers."
 
                                       8
<PAGE>
 
 
                             FINANCIAL HIGHLIGHTS
 
 
         SELECTED DATA FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD
 
  The following data for the years and periods ended on or before January 31,
1998 have been audited by Arthur Andersen LLP, independent public accountants,
as indicated in their report incorporated by reference into the Additional
Statement from the Annual Report to shareholders of the Funds for the year
ended January 31, 1998 (the "Annual Report"). This information should be read
in conjunction with the financial statements and related notes incorporated by
reference and attached to the Additional Statement. The Annual Report also
contains performance information and is available upon request and without
charge by calling the telephone number or writing to one of the addresses on
the back cover of this Prospectus. Information for the period ended July 31,
1998 has not been audited. During the periods shown, the Trust did not offer
Shares of the CORE Large Cap Value Fund. Accordingly, there are no financial
highlights for this Fund.
 
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                   INCOME FROM
                            INVESTMENT OPERATIONS(E)            DISTRIBUTIONS TO SHAREHOLDERS
                           --------------------------- ------------------------------------------------
                                        NET REALIZED
                                       AND UNREALIZED
                                       GAIN (LOSS) ON                                      IN EXCESS OF
                                        INVESTMENT,                            FROM NET    NET REALIZED     NET
                 NET ASSET              FUTURES AND       FROM    IN EXCESS  REALIZED GAIN   GAIN ON     INCREASE   NET ASSET
                  VALUE,      NET     FOREIGN CURRENCY    NET       OF NET   ON INVESTMENT  INVESTMENT  (DECREASE)   VALUE,
                 BEGINNING INVESTMENT     RELATED      INVESTMENT INVESTMENT  AND FUTURES  AND FUTURES    IN NET     END OF
                 OF PERIOD   INCOME     TRANSACTIONS     INCOME     INCOME   TRANSACTIONS  TRANSACTIONS ASSET VALUE  PERIOD
                 --------- ---------- ---------------- ---------- ---------- ------------- ------------ ----------- ---------
                                                                                                               BALANCED FUND
- -----------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>              <C>        <C>        <C>           <C>          <C>         <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $20.29     $0.29         $(0.21)       $(0.28)    $  --       $  --         $  --       $(0.20)    $20.09
1998--Class B
Shares..........   20.20      0.20          (0.20)        (0.21)       --          --            --        (0.21)     19.99
1998--Class C
Shares..........   20.17      0.20          (0.21)        (0.21)       --          --            --        (0.22)     19.95
1998--Institu-
tional Shares...   20.29      0.32          (0.21)        (0.31)       --          --            --        (0.20)     20.09
1998--Service
Shares..........   20.28      0.26          (0.21)        (0.25)       --          --            --        (0.20)     20.08
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   18.78      0.57           2.66         (0.56)       --        (1.16)          --         1.51      20.29
1998--Class B
Shares..........   18.73      0.50           2.57         (0.42)     (0.02)      (1.16)          --         1.47      20.20
1998--Class C
Shares(b).......   21.10      0.25           0.24         (0.22)     (0.04)      (0.64)        (0.52)      (0.93)     20.17
1998--Institu-
tional
Shares(b).......   21.18      0.26           0.32         (0.23)     (0.08)      (0.45)        (0.71)      (0.89)     20.29
1998--Service
Shares(b).......   21.18      0.22           0.32         (0.22)     (0.06)      (0.72)        (0.44)      (0.90)     20.28
- -----------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   17.31      0.66           2.47         (0.66)       --        (1.00)          --         1.47      18.78
1997--Class B
Shares(b).......   17.46      0.42           2.34         (0.42)     (0.07)      (1.00)          --         1.27      18.73
- -----------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   14.22      0.51           3.43         (0.50)       --        (0.35)          --         3.09      17.31
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1995--Class A
Shares(b).......   14.18      0.10           0.02         (0.08)       --          --            --         0.04      14.22
<CAPTION>
                                                                                   RATIOS ASSUMING
                                                                                 NO VOLUNTARY WAIVER
                                                                                      OF FEES OR
                                                                                 EXPENSE LIMITATIONS
                                                                               -------------------------
                                                                   RATIO OF                  RATIO OF
                                             NET      RATIO OF        NET                       NET
                                          ASSETS AT      NET      INVESTMENT    RATIO OF    INVESTMENT
                             PORTFOLIO      END OF   EXPENSES TO   INCOME TO    EXPENSES   INCOME (LOSS)
                   TOTAL     TURNOVER       PERIOD   AVERAGE NET  AVERAGE NET  TO AVERAGE   TO AVERAGE
                 RETURN(A)    RATE(F)     (IN 000'S)   ASSETS       ASSETS     NET ASSETS   NET ASSETS
                 ----------- ------------ ---------- ------------ ------------ ----------- -------------
- -----------------------------------------------------------------------------------------------------------------------------
<S>              <C>         <C>          <C>        <C>          <C>          <C>         <C>           <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........    0.34%(d)   69.31%(d)   $191,408     1.00%(c)     2.86%(c)     1.45%(c)      2.41%(c)
1998--Class B
Shares..........   (0.04)(d)   69.31(d)      38,923     1.75(c)      2.11(c)      1.95(c)       1.91(c)
1998--Class C
Shares..........   (0.08)(d)   69.31(d)      15,693     1.75(c)      2.12(c)      1.95(c)       1.92(c)
1998--Institu-
tional Shares...    0.45(d)    69.31(d)       8,646     0.75(c)      3.11(c)      0.95(c)       2.91(c)
1998--Service
Shares..........    0.26(d)    69.31(d)         447     1.25(c)      2.51(c)      1.45(c)       2.31(c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   17.54      190.43        163,636     1.00         2.94         1.57          2.37
1998--Class B
Shares..........   16.71      190.43         23,639     1.76         2.14         2.07          1.83
1998--Class C
Shares(b).......    2.49(d)   190.43          8,850     1.77(c)      2.13(c)      2.08(c)       1.82(c)
1998--Institu-
tional
Shares(b).......    2.93(d)   190.43          8,367     0.76(c)      3.13(c)      1.07(c)       2.82(c)
1998--Service
Shares(b).......    2.66(d)   190.43             16     1.26(c)      2.58(c)      1.57(c)       2.27(c)
- -----------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   18.59      208.11         81,410     1.00         3.76         1.77          2.99
1997--Class B
Shares(b).......   16.22(d)   208.11          2,110     1.75(c)      2.59(c)      2.27(c)       2.07(c)
- -----------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   28.10      197.10         50,928     1.00         3.65         1.90          2.75
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1995--Class A
Shares(b).......    0.87(d)    14.71          7,510     1.00(c)      3.39(c)      8.29(c)      (3.90)(c)
</TABLE>
- -------------------------------------------------------------------------------
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the
    investment at the NAV at the end of the period and no sales or redemption
    charges. Total return would be reduced if a sales or redemption charge
    were taken into account.
(b) Class A and Class B Share activity commenced on October 12, 1994 and May
    1, 1996, respectively. Class C, Institutional and Service Share activity
    commenced on August 15, 1997.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
(f) Includes the effect of mortgage dollar roll transactions.
 
 
                                       9
<PAGE>
 
<TABLE>
<CAPTION>
                                 INCOME (LOSS)
                                FROM INVESTMENT
                                 OPERATIONS(E)                 DISTRIBUTIONS TO SHAREHOLDERS
                           -------------------------- ------------------------------------------------
                                            NET                                           IN EXCESS OF
                                        REALIZED AND                          FROM NET    NET REALIZED                 NET
                 NET ASSET    NET        UNREALIZED      FROM    IN EXCESS  REALIZED GAIN   GAIN ON                 INCREASE
                  VALUE,   INVESTMENT  GAIN (LOSS) ON    NET       OF NET   ON INVESTMENT  INVESTMENT  ADDITIONAL  (DECREASE)
                 BEGINNING   INCOME     INVESTMENTS   INVESTMENT INVESTMENT  AND FUTURES  AND FUTURES   PAID-IN      IN NET
                 OF PERIOD   (LOSS)     AND FUTURES     INCOME     INCOME   TRANSACTIONS  TRANSACTIONS  CAPITAL    ASSET VALUE
                 --------- ----------  -------------- ---------- ---------- ------------- ------------ ----------  -----------
                                                                                              GROWTH AND INCOME FUND
- ------------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>         <C>            <C>        <C>        <C>           <C>          <C>         <C>
FOR THE SIX MONTHS ENDED JULY 31 (UNAUDITED),
- ---------------------------------------------
1998--Class A
Shares..........  $25.93     $0.09         $(0.41)      $(0.08)    $  --        $ --         $  --       $ --        $(0.40)
1998--Class B
Shares..........   25.73       --           (0.41)         --         --          --            --         --         (0.41)
1998--Class C
Shares..........   25.70      0.01          (0.43)       (0.01)       --          --            --         --         (0.43)
1998--
Institutional
Shares..........   25.95      0.13          (0.40)       (0.13)       --          --            --         --         (0.40)
1998--Service
Shares..........   25.92      0.07          (0.39)       (0.07)       --          --            --         --         (0.39)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   23.18      0.11           5.27        (0.11)       --        (2.52)          --         --          2.75
1998--Class B
Shares..........   23.10      0.04           5.14          --       (0.03)      (2.45)        (0.07)       --          2.63
1998--Class C
Shares(b).......   28.20     (0.01)          0.06          --       (0.03)      (1.42)        (1.10)       --         (2.50)
1998--
Institutional
Shares..........   23.19      0.27           5.23        (0.22)       --        (0.24)        (2.28)       --          2.76
1998--Service
Shares..........   23.17      0.14           5.23        (0.06)     (0.04)      (2.52)          --         --          2.75
- ------------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   19.98      0.35           5.18        (0.35)     (0.01)      (1.97)          --         --          3.20
1997--Class B
Shares(b).......   20.82      0.17           4.31        (0.17)     (0.06)      (1.97)          --         --          2.28
1997--
Institutional
Shares(b).......   21.25      0.29           3.96        (0.30)     (0.04)      (1.97)          --         --          1.94
1997--Service
Shares(b).......   20.71      0.28           4.50        (0.28)     (0.07)      (1.97)          --         --          2.46
- ------------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   15.80      0.33           4.75        (0.30)       --        (0.60)          --         --          4.18
- ------------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   15.79      0.20(f)        0.30(f)     (0.20)     (0.07)      (0.33)          --        0.11(f)      0.01
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1994--Class A
Shares(b).......   14.18      0.15           1.68        (0.15)     (0.01)      (0.06)          --         --          1.61
<CAPTION>
                                                                                                RATIOS ASSUMING
                                                                                              NO VOLUNTARY WAIVER
                                                                                                  OF FEES OR
                                                                                              EXPENSE LIMITATIONS
                                                                                           --------------------------
                                                                                 RATIO
                                                                                OF NET                      RATIO
                                                        NET        RATIO      INVESTMENT                   OF NET
                 NET ASSET                           ASSETS AT    OF NET     INCOME (LOSS)    RATIO      INVESTMENT
                  VALUE,                PORTFOLIO      END OF   EXPENSES TO   TO AVERAGE   OF EXPENSES  INCOME (LOSS)
                  END OF     TOTAL      TURNOVER       PERIOD   AVERAGE NET       NET      TO AVERAGE    TO AVERAGE
                  PERIOD   RETURN(A)      RATE       (IN 000S)    ASSETS        ASSETS     NET ASSETS    NET ASSETS
                 --------- ------------ ------------ ---------- ------------ ------------- ------------ -------------
- ------------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>          <C>          <C>        <C>          <C>           <C>          <C>
FOR THE SIX MONTHS ENDED JULY 31 (UNAUDITED),
- ---------------------------------------------
1998--Class A
Shares..........  $25.53     (1.26)%(d)   37.78%(d)  $1,356,662    1.22%(c)       0.64%(c)    1.38%(c)       0.48%(c)
1998--Class B
Shares..........   25.32     (1.59)(d)    37.78(d)      416,520    1.88(c)       (0.03)(c)    1.88(c)       (0.03)(c)
1998--Class C
Shares..........   25.27     (1.63)(d)    37.78(d)       63,080    1.88(c)       (0.03)(c)    1.88(c)       (0.03)(c)
1998--
Institutional
Shares..........   25.55     (1.07)(d)    37.78(d)      192,094    0.80(c)        1.06(c)     0.80(c)        1.06(c)
1998--Service
Shares..........   25.53     (1.26)(d)    37.78(d)       12,338    1.30(c)        0.57(c)     1.30(c)        0.57(c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   25.93     23.71        61.95       1,216,582    1.25           0.43        1.42           0.26
1998--Class B
Shares..........   25.73     22.87        61.95         307,815    1.94          (0.35)       1.94          (0.35)
1998--Class C
Shares(b).......   25.70      0.51(d)     61.95          31,686    1.99(c)       (0.48)(c)    1.99(c)       (0.48)(c)
1998--
Institutional
Shares..........   25.95     24.24        61.95          36.225    0.83           0.76        0.83           0.76
1998--Service
Shares..........   25.92     23.63        61.95           8,893    1.32           0.32        1.32           0.32
- ------------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   23.18     28.42        53.03         615,103    1.22           1.60        1.43           1.39
1997--Class B
Shares(b).......   23.10     22.23(d)     53.03          17,346    1.93(c)        0.15(c)     1.93(c)        0.15(c)
1997--
Institutional
Shares(b).......   23.19     20.77(d)     53.03             193    0.82(c)        1.36(c)     0.82(c)        1.36(c)
1997--Service
Shares(b).......   23.17     23.87(d)     53.03           3,174    1.32(c)        0.94(c)     1.32(c)        0.94(c)
- ------------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   19.98     32.45        57.93         436,757    1.20           1.67        1.45           1.42
- ------------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   15.80      3.97        71.80         193,772    1.25           1.28        1.58           0.95
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1994--Class A
Shares(b).......   15.79     13.08(d)    102.23          41,528    1.25(c)        1.23(c)     3.24(c)       (0.76)(c)
</TABLE>
- -------------------------------------------------------------------------------
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the
    investment at the NAV at the end of the period and no sales or redemption
    charges. Total return would be reduced if a sales or redemption charge
    were taken into account.
(b) Class A, Class B, Class C, Institutional and Service Share activity
    commenced on February 5, 1993, May 1, 1996, August 15, 1997, June 3, 1996
    and March 6, 1996, respectively.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
(f) Calculated based on the average Shares outstanding methodology.
 
                                       10
<PAGE>
 
<TABLE>
<CAPTION>
                                  INCOME FROM                       DISTRIBUTIONS TO
                           INVESTMENT OPERATIONS(E)                   SHAREHOLDERS
                           ------------------------- -----------------------------------------------
                                                                             FROM NET   IN EXCESS OF    NET
                                       NET REALIZED                          REALIZED   NET REALIZED INCREASE/   NET
                 NET ASSET    NET     AND UNREALIZED            IN EXCESS    GAIN ON      GAIN ON    (DECREASE) ASSET
                  VALUE,   INVESTMENT GAIN (LOSS) ON  FROM NET    OF NET    INVESTMENT   INVESTMENT    IN NET   VALUE,
                 BEGINNING   INCOME    INVESTMENTS   INVESTMENT INVESTMENT AND FUTURES  AND FUTURES    ASSET    END OF   TOTAL
                 OF PERIOD   (LOSS)    AND FUTURES     INCOME     INCOME   TRANSACTIONS TRANSACTIONS   VALUE    PERIOD RETURN(A)
                 --------- ---------- -------------- ---------- ---------- ------------ ------------ ---------- ------ ---------
                                                                                               CORE U.S. EQUITY FUND
- ----------------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>            <C>        <C>        <C>          <C>          <C>        <C>    <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $26.59     $0.03        $3.61        $  --      $   --      $  --        $   --      $3.64    $30.23   13.69%(d)
1998--Class B
Shares..........   26.32     (0.04)        3.58           --          --         --            --       3.54     29.86   13.45(d)
1998--Class C
Shares..........   26.24     (0.04)        3.56           --          --         --            --       3.52     29.76   13.41(d)
1998--Institu-
tional Shares...   26.79      0.10         3.66           --          --         --            --       3.76     30.55   14.04(d)
1998--Service
Shares..........   26.53      0.05         3.60           --          --         --            --       3.65     30.18   13.76(d)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   23.32      0.11         5.63        (0.12)         --      (2.35)           --       3.27     26.59   24.96
1998--Class B
Shares..........   23.18      0.11         5.44           --       (0.06)     (2.00)        (0.35)      3.14     26.32   24.28
1998--Class C
Shares(b).......   27.48      0.03         1.22           --       (0.14)     (0.67)        (1.68)     (1.24)    26.24    4.85(d)
1998--Institu-
tional Shares...   23.44      0.30         5.65        (0.24)      (0.01)     (1.33)        (1.02)      3.35     26.79   25.76
1998--Service
Shares..........   23.27      0.19         5.57        (0.07)      (0.08)     (2.35)           --       3.26     26.53   25.11
- ----------------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   19.66      0.16         4.46        (0.16)         --      (0.80)           --       3.66     23.32   23.75
1997--Class B
Shares(b).......   20.44      0.04         3.70        (0.04)      (0.16)     (0.80)           --       2.74     23.18   18.59(d)
1997--Institu-
tional Shares...   19.71      0.30         4.51        (0.28)         --      (0.80)           --       3.73     23.44   24.63
1997--Service
Shares(b).......   21.02      0.13         3.15        (0.13)      (0.10)     (0.80)           --       2.25     23.27   15.92(d)
- ----------------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   14.61      0.19         5.43        (0.16)         --      (0.41)           --       5.05     19.66   38.63
1996--Institu-
tional
Shares(b).......   16.97      0.16         3.23        (0.24)         --      (0.41)           --       2.74     19.71   20.14(d)
- ----------------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   15.93      0.20        (0.38)       (0.20)         --      (0.94)           --      (1.32)    14.61   (1.10)
- ----------------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   15.46      0.17         2.08        (0.17)         --      (1.61)           --       0.47     15.93   15.12
- ----------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                 RATIOS ASSUMING
                                                               NO VOLUNTARY WAIVER
                                                                   OF FEES OR
                                                               EXPENSE LIMITATIONS
                                                               -------------------------
                                       RATIO OF    RATIO OF                  RATIO OF
                                         NET         NET       RATIO OF        NET
                                NET    EXPENSES   INVESTMENT   EXPENSES     INVESTMENT
                             ASSETS AT    TO        INCOME        TO         INCOME
                 PORTFOLIO    END OF   AVERAGE    (LOSS) TO    AVERAGE      (LOSS) TO
                 TURNOVER     PERIOD     NET       AVERAGE       NET         AVERAGE
                   RATE      (IN 000S)  ASSETS    NET ASSETS    ASSETS      NET ASSETS
                 ----------- --------- ---------- ------------ ------------ ------------
- ----------------------------------------------------------------------------------------------------------------------------------
<S>              <C>         <C>       <C>        <C>          <C>          <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........   22.52%(d) $527,753    1.26%(c)    0.23%(c)     1.43%(c)     0.06%(c)
1998--Class B
Shares..........   22.52(d)   102,565    1.76(c)    (0.29)(c)     1.93(c)     (0.46)(c)
1998--Class C
Shares..........   22.52(d)    15,316    1.76(c)    (0.32)(c)     1.93(c)     (0.49)(c)
1998--Institu-
tional Shares...   22.52(d)   298,853    0.65(c)     0.83(c)      0.82(c)      0.66(c)
1998--Service
Shares..........   22.52(d)    10,388    1.15(c)     0.33(c)      1.32(c)      0.16(c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   65.89      398,393    1.28        0.51         1.47         0.32
1998--Class B
Shares..........   65.89       59,208    1.79       (0.05)        1.96        (0.22)
1998--Class C
Shares(b).......   65.89        6,267    1.78(c)    (0.21)(c)  (c)1.95(c)     (0.38)(c)
1998--Institu-
tional Shares...   65.89      202,893    0.65        1.16         0.82         0.99
1998--Service
Shares..........   65.89        7,841    1.15        0.62         1.32         0.45
- ----------------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   37.78      225,968    1.29        0.91         1.53         0.67
1997--Class B
Shares(b).......   37.28       17,258    1.83(c)     0.06(c)      2.00(c)     (0.11)(c)
1997--Institu-
tional Shares...   37.28      148,942    0.65        1.52         0.85         1.32
1997--Service
Shares(b).......   37.28        3,666    1.15(c)     0.69(c)      1.35(c)      0.49(c)
- ----------------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   39.35      129,045    1.25        1.01         1.55         0.71
1996--Institu-
tional
Shares(b).......   39.35       64,829    0.65(c)     1.49(c)      0.96(c)      1.18(c)
- ----------------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   56.18       94,968    1.38        1.33         1.63         1.08
- ----------------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   87.73       92,769    1.42        0.92         1.67         0.67
- ----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the investment
    at the NAV at the end of the period and no sales or redemption charges.
    Total return would be reduced if a sales or redemption charge were taken
    into account.
(b) Class B, Class C, Institutional and Service Share activity commenced on May
    1, 1996, August 15, 1997, June 15, 1995 and June 7, 1996, respectively.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
 
                                       11
<PAGE>
 
<TABLE>
<CAPTION>
                           INCOME FROM INVESTMENT
                               OPERATIONS(E)               DISTRIBUTIONS TO SHAREHOLDERS
                           ---------------------- -----------------------------------------------
                                          NET
                                       REALIZED
                                          AND                             FROM NET   IN EXCESS OF
                                      UNREALIZED                          REALIZED   NET REALIZED   NET     NET
                 NET ASSET    NET     GAIN (LOSS)            IN EXCESS    GAIN ON      GAIN ON    INCREASE ASSET
                  VALUE,   INVESTMENT     ON       FROM NET    OF NET    INVESTMENT   INVESTMENT   IN NET  VALUE,
                 BEGINNING   INCOME   INVESTMENTS INVESTMENT INVESTMENT AND FUTURES  AND FUTURES   ASSET   END OF
                 OF PERIOD   (LOSS)   AND FUTURES   INCOME     INCOME   TRANSACTIONS TRANSACTIONS  VALUE   PERIOD
                 --------- ---------- ----------- ---------- ---------- ------------ ------------ -------- ------
<S>              <C>       <C>        <C>         <C>        <C>        <C>          <C>          <C>      <C>
                                                                    CORE LARGE CAP GROWTH FUND
- -----------------------------------------------------------------------------------------------------------------
FOR THE SIX MONTHS ENDED JULY 31 (UNAUDITED),
- ---------------------------------------------
1998--Class A
Shares..........  $11.97     $ 0.01      $1.97      $  --      $  --       $   --       $  --      $1.98   $13.95
1998--Class B
Shares..........   11.92      (0.02)      1.95         --         --           --          --       1.93    13.85
1998--Class C
Shares..........   11.93      (0.02)      1.93         --         --           --          --       1.91    13.84
1998--
Institutional
Shares..........   11.97       0.01       1.99         --         --           --          --       2.00    13.97
1998--Service
Shares..........   11.95         --       1.96         --         --           --          --       1.96    13.91
<CAPTION>
                                                                          RATIOS ASSUMING NO
                                                                          VOLUNTARY WAIVER OF
                                                                            FEES OR EXPENSE
                                                                              LIMITATIONS
                                                                          ------------------------
                                           NET    RATIO OF    RATIO OF
                                          ASSETS    NET         NET       RATIO OF    RATIO OF
                                          AT END  EXPENSES   INVESTMENT   EXPENSES      NET
                                            OF       TO        INCOME        TO      INVESTMENT
                             PORTFOLIO    PERIOD  AVERAGE    (LOSS) TO    AVERAGE     LOSS TO
                   TOTAL     TURNOVER      (IN      NET       AVERAGE       NET       AVERAGE
                 RETURN(A)     RATE       000S)    ASSETS    NET ASSETS    ASSETS    NET ASSETS
                 ----------- ----------- -------- ---------- ------------ ---------- -------------
<S>              <C>         <C>         <C>      <C>        <C>          <C>        <C>
- -----------------------------------------------------------------------------------------------------------------
FOR THE SIX MONTHS ENDED JULY 31 (UNAUDITED),
- ---------------------------------------------
1998--Class A
Shares..........   16.54%(d)   45.79%(d) $116,939   0.90%(c)    0.19%(c)    1.61%(c)   (0.52)%(c)
1998--Class B
Shares..........   16.19(d)    45.79(d)    49,881   1.65(c)    (0.56)(c)    2.11(c)    (1.02)(c)
1998--Class C
Shares..........   16.01(d)    45.79(d)    15,724   1.65(c)    (0.57)(c)    2.11(c)    (1.03)(c)
1998--
Institutional
Shares..........   16.71(d)    45.79(d)   135,153   0.65(c)     0.42(c)     1.11(c)    (0.04)(c)
1998--Service
Shares..........   16.40(d)    45.79(d)       507   1.15(c)    (0.04)(c)    1.61(c)    (0.50)(c)
FOR THE PERIOD
ENDED JANUARY
31,
- --------------
1998--Class A
Shares(b).......   10.00       0.01       2.35      (0.01)        --        (0.32)      (0.06)      1.97    11.97
1998--Class B
Shares(b).......   10.00      (0.03)      2.33         --         --        (0.18)      (0.20)      1.92    11.92
1998--Class C
Shares(b).......   11.80      (0.02)      0.54         --      (0.01)       (0.38)         --       0.13    11.93
1998--
Institutional
Shares(b).......   10.00       0.01       2.35      (0.01)        --        (0.19)      (0.19)      1.97    11.97
1998--Service
Shares(b).......   10.00      (0.02)      2.35         --         --        (0.08)      (0.30)      1.95    11.95
FOR THE PERIOD
ENDED JANUARY
31,
- --------------
1998--Class A
Shares(b).......   23.79(d)    74.97(d)    53,786   0.91(c)     0.12(c)     2.40(c)    (1.37)(c)
1998--Class B
Shares(b).......   23.26(d)    74.97(d)    13,857   1.67(c)    (0.72)(c)    2.91(c)    (1.96)(c)
1998--Class C
Shares(b).......    4.56(d)    74.97(d)     4,132   1.68(c)    (0.76)(c)    2.92(c)    (2.00)(c)
1998--
Institutional
Shares(b).......   23.89(d)    74.97(d)     4,656   0.72(c)     0.42(c)     1.96(c)    (0.82)(c)
1998--Service
Shares(b).......   23.56(d)    74.97(d)       115   1.17(c)    (0.21)(c)    2.41(c)    (1.45)(c)
</TABLE>
- --------------------------------------------------------------------------------
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the investment
    at the NAV at the end of the period and no sales or redemption charges.
    Total return would be reduced if a sales or redemption charge were taken
    into account.
(b) Class A, Class B, Institutional and Service Share activity commenced on May
    1, 1997. Class C Share activity commenced on August 15, 1997.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
 
 
                                       12
<PAGE>
 
<TABLE>
<CAPTION>
                                  INCOME FROM           DISTRIBUTIONS TO
                           INVESTMENT OPERATIONS(E)       SHAREHOLDERS
                           ------------------------- -----------------------
                                           NET
                                       REALIZED AND               FROM NET
                                        UNREALIZED                REALIZED
                 NET ASSET    NET     GAIN (LOSS) ON    FROM      GAIN ON        NET     NET ASSET
                  VALUE,   INVESTMENT INVESTMENT AND    NET      INVESTMENT   INCREASE    VALUE,               PORTFOLIO
                 BEGINNING   INCOME      FUTURES     INVESTMENT AND FUTURES    IN NET     END OF     TOTAL     TURNOVER
                 OF PERIOD   (LOSS)    TRANSACTIONS    INCOME   TRANSACTIONS ASSET VALUE  PERIOD   RETURN(A)     RATE
                 --------- ---------- -------------- ---------- ------------ ----------- --------- ---------   ---------
                                                                           CORE SMALL CAP EQUITY FUND
- --------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>            <C>        <C>          <C>         <C>       <C>         <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $10.59     $   --       $0.11         $ --       $  --        $0.11     $10.70     1.04%(d)    16.06%(d)
1998--Class B
Shares..........   10.56      (0.03)       0.10           --          --         0.07      10.63     0.66(d)     16.06(d)
1998--Class C
Shares..........   10.57      (0.03)       0.10           --          --         0.07      10.64     0.66(d)     16.06(d)
1998--Institu-
tional Shares...   10.61       0.02        0.10           --          --         0.12      10.73     1.13(d)     16.06(d)
1998--Service
Shares..........   10.60      (0.01)       0.11           --          --         0.10      10.70     0.94(d)     16.06(d)
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1998--Class A
Shares(b).......   10.00      (0.01)       0.65           --       (0.05)        0.59      10.59     6.37(d)     37.65(d)
1998--Class B
Shares(b).......   10.00      (0.03)       0.64           --       (0.05)        0.56      10.56     6.07(d)     37.65(d)
1998--Class C
Shares(b).......   10.00      (0.02)       0.64           --       (0.05)        0.57      10.57     6.17(d)     37.65(d)
1998--Institu-
tional
Shares(b).......   10.00       0.01        0.65           --       (0.05)        0.61      10.61     6.57(d)     37.65(d)
1998--Service
Shares(b).......   10.00       0.01        0.64           --       (0.05)        0.60      10.60     6.47(d)     37.65(d)
<CAPTION>
                                                        RATIOS ASSUMING NO
                                                     VOLUNTARY WAIVER OF FEES
                                                      OR EXPENSE LIMITATIONS
                                                     ---------------------------
                                                                      RATIO
                    NET      RATIO     RATIO OF NET                  OF NET
                 ASSETS AT   OF NET     INVESTMENT    RATIO OF     INVESTMENT
                  END OF    EXPENSES   INCOME (LOSS) EXPENSES TO  INCOME (LOSS)
                  PERIOD   TO AVERAGE   TO AVERAGE   AVERAGE NET   TO AVERAGE
                 (IN 000S) NET ASSETS   NET ASSETS     ASSETS      NET ASSETS
                 --------- ----------- ------------- ------------ --------------
- --------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>         <C>           <C>          <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $20,989     1.25%(c)      0.07%(c)    2.14%(c)      (0.82)%(c)
1998--Class B
Shares..........   14,843     1.95(c)      (0.62)(c)    2.64(c)       (1.31)(c)
1998--Class C
Shares..........    4,433     1.95(c)      (0.62)(c)    2.64(c)       (1.31)(c)
1998--Institu-
tional Shares...   44,614     0.95(c)       0.46 (c)    1.64(c)       (0.23)(c)
1998--Service
Shares..........       22     1.45(c)      (0.40)(c)    2.14(c)       (1.09)(c)
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1998--Class A
Shares(b).......   11,118     1.25(c)      (0.36)(c)    3.92(c)       (3.03)(c)
1998--Class B
Shares(b).......    9,957     1.95(c)      (1.04)(c)    4.37(c)       (3.46)(c)
1998--Class C
Shares(b).......    2,557     1.95(c)      (1.07)(c)    4.37(c)       (3.49)(c)
1998--Institu-
tional
Shares(b).......    9,026     0.95(c)       0.15 (c)    3.37(c)       (2.27)(c)
1998--Service
Shares(b).......        2     1.45(c)       0.40 (c)    3.87(c)       (2.02)(c)
</TABLE>
- --------------------------------------------------------------------------------
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the investment
    at the NAV at the end of the period and no sales or redemption charges.
    Total return would be reduced if a sales or redemption charge were taken
    into account.
(b) Commenced operations on August 15, 1997.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
 
 
                                       13
<PAGE>
 
<TABLE>
<CAPTION>
                                       INCOME FROM
                                 INVESTMENT OPERATIONS(E)           DISTRIBUTIONS TO SHAREHOLDERS
                           ------------------------------------ -------------------------------------
                                                                                          IN EXCESS
                                           NET                                              OF NET
                 NET ASSET    NET      REALIZED AND             IN EXCESS    FROM NET      REALIZED   NET INCREASE
                  VALUE,   INVESTMENT   UNREALIZED    FROM NET    OF NET   REALIZED GAIN   GAIN ON     (DECREASE)  NET ASSET
                 BEGINNING   INCOME   GAIN (LOSS) ON INVESTMENT INVESTMENT ON INVESTMENT  INVESTMENT  IN NET ASSET VALUE, END
                 OF PERIOD   (LOSS)    INVESTMENTS     INCOME     INCOME   TRANSACTIONS  TRANSACTIONS    VALUE     OF PERIOD
                 --------- ---------- -------------- ---------- ---------- ------------- ------------ ------------ ----------
                                                                                                    CAPITAL GROWTH FUND
- -----------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>            <C>        <C>        <C>           <C>          <C>          <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $18.48     $(0.01)      $3.32        $  --      $  --        $  --        $   --        $3.31      $21.79
1998--Class B
Shares..........   18.27      (0.06)       3.26           --         --           --            --         3.20       21.47
1998--Class C
Shares..........   18.24      (0.05)       3.23           --         --           --            --         3.18       21.42
1998--Institu-
tional Shares...   18.45       0.01        3.32           --         --           --            --         3.33       21.78
1998--Service
Shares..........   18.46      (0.02)       3.30           --         --           --            --         3.28       21.74
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   16.73       0.02        4.78        (0.01)     (0.01)       (3.03)           --         1.75       18.48
1998--Class B
Shares..........   16.67       0.02        4.61           --         --        (1.20)        (1.83)        1.60       18.27
1998--Class C
Shares(b).......   19.73      (0.02)       1.60           --      (0.04)       (0.47)        (2.56)       (1.49)      18.24
1998--Institu-
tional
Shares(b).......   19.88       0.02        1.66        (0.01)     (0.07)       (0.41)        (2.62)       (1.43)      18.45
1998--Service
Shares(b).......   19.88      (0.01)       1.66           --      (0.04)       (0.76)        (2.27)       (1.42)      18.46
- -----------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   14.91       0.10        3.56        (0.10)     (0.02)       (1.72)           --         1.82       16.73
1997--Class B
Shares(b).......   15.67       0.01        2.81        (0.01)     (0.09)       (1.72)           --         1.00       16.67
- -----------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   13.67       0.12        3.93        (0.12)        --        (2.69)           --         1.24       14.91
- -----------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   15.96       0.03       (0.69)       (0.01)        --        (1.62)           --        (2.29)      13.67
- -----------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   14.64       0.02        2.40        (0.01)     (0.02)       (1.07)           --         1.32       15.96
- -----------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                                      RATIOS ASSUMING
                                                                                    NO VOLUNTARY WAIVER
                                                                                          OF FEES
                                                                                 ---------------------------
                                                                    RATIO OF                  RATIO OF NET
                                         NET ASSETS   RATIO OF   NET INVESTMENT   RATIO OF     INVESTMENT
                             PORTFOLIO   AT END OF  NET EXPENSES INCOME (LOSS)   EXPENSES TO  INCOME (LOSS)
                   TOTAL     TURNOVER      PERIOD    TO AVERAGE    TO AVERAGE    AVERAGE NET   TO AVERAGE
                 RETURN(A)     RATE      (IN 000S)   NET ASSETS    NET ASSETS      ASSETS      NET ASSETS
                 ----------- ----------- ---------- ------------ --------------- ------------ --------------
- -----------------------------------------------------------------------------------------------------------------------------
<S>              <C>         <C>         <C>        <C>          <C>             <C>          <C>            <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........   17.91%(d)   10.02%(d) $1,639,118     1.39%(c)     (0.12)%(c)     1.64%(c)      (0.37)%(c)
1998--Class B
Shares..........   17.52(d)    10.02(d)     125,092     2.14(c)      (0.92)(c)      2.14(c)       (0.92)(c)
1998--Class C
Shares..........   17.43(d)    10.02(d)      27,385     2.14(c)      (0.94)(c)      2.14(c)       (0.94)(c)
1998--Institu-
tional Shares...   18.05(d)    10.02(d)      15,248     1.10(c)       0.11 (c)      1.10(c)        0.11 (c)
1998--Service
Shares..........   17.77(d)    10.02(d)       1,222     1.60(c)      (0.44)(c)      1.60(c)       (0.44)(c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   29.71       61.50      1,256,595     1.40          0.08          1.65          (0.17)
1998--Class B
Shares..........   28.73       61.50         40,827     2.18         (0.77)         2.18          (0.77)
1998--Class C
Shares(b).......    8.83(d)    61.50          5,395     2.21(c)      (0.86)(c)      2.21(c)       (0.86)(c)
1998--Institu-
tional
Shares(b).......    9.31(d)    61.50          7,262     1.16(c)       0.18 (c)      1.16(c)        0.18 (c)
1998--Service
Shares(b).......    9.18(d)    61.50              2     1.50(c)      (0.16)(c)      1.50(c)       (0.16)(c)
- -----------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   25.97       52.92        920,646     1.40          0.62          1.65           0.37
1997--Class B
Shares(b).......   19.39(d)    52.92          3,221     2.15(c)      (0.39)(c)      2.15(c)       (0.39)(c)
- -----------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   30.45       63.90        881,056     1.36          0.65          1.61           0.40
- -----------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   (4.38)      38.36        862,105     1.38          0.16          1.63          (0.09)
- -----------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   16.89       36.12        833,682     1.38          0.13          1.63          (0.12)
- -----------------------------------------------------------------------------------------------------------------------------
</TABLE>
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the
    investment at the NAV at the end of the period and no sales or redemption
    charges. Total return would be reduced if a sales or redemption charge
    were taken into account.
(b) Class B, Class C, Institutional and Service Share activity commenced on
    May 1, 1996, August 15, 1997, August 15, 1997 and August 15, 1997,
    respectively.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
                                       14
<PAGE>
 
<TABLE>
<CAPTION>
                                     INCOME FROM
                              INVESTMENT OPERATIONS(E)             DISTRIBUTIONS TO SHAREHOLDERS
                           ------------------------------- ---------------------------------------------
                                          NET REALIZED
                                         AND UNREALIZED                                          NET
                                         GAIN (LOSS) ON                            FROM NET    INCREASE   NET
                 NET ASSET    NET         INVESTMENTS,                IN EXCESS    REALIZED   (DECREASE) ASSET
                  VALUE,   INVESTMENT     OPTIONS AND       FROM NET    OF NET     GAIN ON      IN NET   VALUE,
                 BEGINNING   INCOME     FOREIGN CURRENCY   INVESTMENT INVESTMENT  INVESTMENT    ASSET    END OF   TOTAL
                 OF PERIOD   (LOSS)   RELATED TRANSACTIONS   INCOME     INCOME   TRANSACTIONS   VALUE    PERIOD RETURN(A)
                 --------- ---------- -------------------- ---------- ---------- ------------ ---------- ------ ---------
                                                                                   MID CAP EQUITY FUND
- ----------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>                  <C>        <C>        <C>          <C>        <C>    <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $21.61     $0.03           $(0.79)         $ --       $ --        $ --        $(0.76)  $20.85   (3.52)%(d)
1998--Class B
Shares..........   21.57     (0.02)           (0.78)           --         --          --         (0.80)   20.77   (3.71)(d)
1998--Class C
Shares..........   21.59     (0.02)           (0.79)           --         --          --         (0.81)   20.78   (3.75)(d)
1998--Institu-
tional Shares...   21.65      0.09            (0.80)           --         --          --         (0.71)   20.94   (3.28)(d)
1998--Service
Shares..........   21.62       --             (0.75)           --         --          --         (0.75)   20.87   (3.47)(d)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares(b).......   23.63      0.09             0.76          (0.06)     (0.04)      (2.77)       (2.02)   21.61    3.42(d)
1998--Class B
Shares(b).......   23.63      0.06             0.74          (0.09)       --        (2.77)       (2.06)   21.57    3.17(d)
1998--Class C
Shares(b).......   23.63      0.06             0.76          (0.09)       --        (2.77)       (2.04)   21.59    3.27(d)
1998--Institu-
tional Shares...   18.73      0.16             5.66          (0.13)       --        (2.77)        2.92    21.65   30.86
1998--Service
Shares(b).......   23.01      0.09             1.40          (0.11)       --        (2.77)       (1.39)   21.62    6.30(d)
- ----------------------------------------------------------------------------------------------------------------------------
1997--Institu-
tional Shares...   15.91      0.24             3.77          (0.24)     (0.93)      (0.02)        2.82    18.73   25.63
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1996--Institu-
tional
Shares(b).......   15.00      0.13             0.90          (0.12)       --          --          0.91    15.91    6.89(d)
<CAPTION>
                                                                  RATIOS ASSUMING NO
                                                                 EXPENSE LIMITATIONS
                                                                ------------------------
                                        RATIO OF    RATIO OF
                                          NET         NET       RATIO OF     RATIO OF
                                        EXPENSES   INVESTMENT   EXPENSES        NET
                             NET ASSETS    TO        INCOME        TO       INVESTMENT
                 PORTFOLIO   AT END OF  AVERAGE    (LOSS) TO    AVERAGE    INCOME (LOSS)
                 TURNOVER      PERIOD     NET       AVERAGE       NET       TO AVERAGE
                   RATE      (IN 000S)   ASSETS    NET ASSETS    ASSETS     NET ASSETS
                 ----------- ---------- ---------- ------------ ---------- -------------
                                                                                   MID CAP EQUITY FUND
- ----------------------------------------------------------------------------------------------------------------------------
<S>              <C>         <C>        <C>        <C>          <C>        <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........   27.55%(d)  $118,663    1.35%(c)    0.28%(c)    1.47%(c)      0.16%(c)
1998--Class B
Shares..........   27.55(d)     46,268    1.85(c)    (0.21)(c)    1.97(c)      (0.33)(c)
1998--Class C
Shares..........   27.55(d)     12,615    1.85(c)    (0.21)(c)    1.97(c)      (0.33)(c)
1998--Institu-
tional Shares...   27.55(d)    230,251    0.85(c)     0.79 (c)    0.97(c)       0.67 (c)
1998--Service
Shares..........   27.55(d)         83    1.35(c)     0.18 (c)    1.47(c)       0.06 (c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares(b).......   62.60        90,588    1.35(c)     0.33 (c)    1.47(c)       0.21 (c)
1998--Class B
Shares(b).......   62.60        28,743    1.85(c)    (0.20)(c)    1.97(c)      (0.32)(c)
1998--Class C
Shares(b).......   62.60         6,445    1.85(c)    (0.23)(c)    1.97(c)      (0.35)(c)
1998--Institu-
tional Shares...   62.60       236,440    0.85        0.78        0.97          0.66
1998--Service
Shares(b).......   62.60             8    1.35(c)     0.63(c)     1.43(c)       0.51(c)
- ----------------------------------------------------------------------------------------------------------------------------
1997--Institu-
tional Shares...   74.03       145,253    0.85        1.35        0.91          1.29
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1996--Institu-
tional
Shares(b).......   58.77(d)    135,671    0.85(c)     1.67(c)     0.98(c)       1.54(c)
</TABLE>
- -------------------------------------------------------------------------------
(a) Assumes Investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the
    investment at the NAV at the end of the period and no sales or redemption
    charges. Total return would be reduced if a sales or redemption charge
    were taken into account.
(b) Class A, Class B, Class C, Institutional and Service Share activity
    commenced on August 15, 1997, August 15, 1997, August 15, 1997, August 1,
    1995 and July 18, 1997, respectively.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
 
 
                                       15
<PAGE>
 
<TABLE>
<CAPTION>
                                 INCOME (LOSS) FROM
                              INVESTMENT OPERATIONS(E)         DISTRIBUTIONS TO SHAREHOLDERS
                           ------------------------------- -------------------------------------
                                                                          FROM NET
                                          NET REALIZED                 REALIZED GAIN
                 NET ASSET    NET        AND UNREALIZED       FROM     ON INVESTMENT, IN EXCESS  NET INCREASE
                  VALUE,   INVESTMENT    GAIN (LOSS) ON        NET      OPTIONS AND     OF NET    (DECREASE)  NET ASSET
                 BEGINNING   INCOME      INVESTMENT AND    INVESTMENT,    FUTURES     INVESTMENT IN NET ASSET VALUE, END
                 OF PERIOD   (LOSS)   OPTIONS TRANSACTIONS   INCOME     TRANSACTIONS    INCOME      VALUE     OF PERIOD
                 --------- ---------- -------------------- ----------- -------------- ---------- ------------ ----------
                                                                                     SMALL CAP VALUE FUND
- ------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>                  <C>         <C>            <C>        <C>          <C>
FOR THE SIX MONTHS ENDED JULY 31 (UNAUDITED),
- ---------------------------------------------
1998--Class A
Shares..........  $24.05     $(0.02)         $(0.17)         $  --         $  --        $  --       $(0.19)     $23.86
1998--Class B
Shares..........   23.73      (0.11)          (0.17)            --            --           --        (0.28)      23.45
1998--Class C
Shares..........   23.73      (0.09)          (0.19)            --            --           --        (0.28)      23.45
1998--Institu-
tional Shares...   24.09       0.03           (0.18)            --            --           --        (0.15)      23.94
1998--Service
Shares..........   24.05        --            (0.19)            --            --           --        (0.19)      23.86
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   20.91       0.14            5.33             --          (2.33)         --         3.14       24.05
1998--Class B
Shares..........   20.80      (0.01)           5.27             --          (2.33)         --         2.93       23.73
1998--Class C
Shares(b).......   24.69      (0.06)           1.43             --          (1.99)       (0.34)      (0.96)      23.73
1998--Institu-
tional
Shares(b).......   24.91       0.03            1.48             --          (2.05)       (0.28)      (0.82)      24.09
1998--Service
Shares(b).......   24.91      (0.01)           1.48             --          (2.02)       (0.31)      (0.86)      24.05
- ------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   17.29      (0.21)           4.92             --          (1.09)         --         3.62       20.91
1997--Class B
Shares(b).......   20.79      (0.11)           1.21             --          (1.09)         --         0.01       20.80
- ------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   16.14      (0.23)           1.39             --          (0.01)         --         1.15       17.29
- ------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   20.67      (0.07)          (3.53)            --          (0.69)       (0.24)      (4.53)      16.14
- ------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   16.68      (0.04)           5.03             --          (1.00)         --         3.99       20.67
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1993--Class A
Shares(b).......   14.18       0.03            2.50           (0.03)          --           --         2.50       16.68
<CAPTION>
                                                                                        RATIOS ASSUMING NO
                                                                                         VOLUNTARY WAIVER
                                                                                             OF FEES
                                                                                    ----------------------------
                                                                       RATIO OF                     RATIO OF
                                           NET ASSETS   RATIO OF    NET INVESTMENT   RATIO OF    NET INVESTMENT
                               PORTFOLIO   AT END OF  NET EXPENSES INCOME (LOSS) TO EXPENSES TO  INCOME (LOSS)
                   TOTAL       TURNOVER      PERIOD    TO AVERAGE    AVERAGE NET      AVERAGE    TO AVERAGE NET
                 RETURN(A)       RATE      (IN 000S)   NET ASSETS       ASSETS      NET ASSETS       ASSETS
                 ------------- ----------- ---------- ------------ ---------------- ------------ ---------------
- ------------------------------------------------------------------------------------------------------------------------
<S>              <C>           <C>         <C>        <C>          <C>              <C>          <C>
FOR THE SIX MONTHS ENDED JULY 31 (UNAUDITED),
- ---------------------------------------------
1998--Class A
Shares..........   (0.79)%(d)    46.40%(d)  $402,797      1.50%(c)      (0.16)%(c)     1.75%(c)      (0.41)%(c)
1998--Class B
Shares..........   (1.18)(d)     46.40(d)     54,241      2.25(c)       (0.90)(c)      2.25(c)       (0.90)(c)
1998--Class C
Shares..........   (1.18)(d)     46.40(d)      9,308      2.25(c)       (0.88)(c)      2.25(c)       (0.88)(c)
1998--Institu-
tional Shares...   (0.62)(d)     46.40(d)     18,197      1.15(c)        0.21(c)       1.15(c)        0.21(c)
1998--Service
Shares..........   (0.79)(d)     46.40(d)         76      1.65(c)       (0.09)(c)      1.65(c)       (0.09)(c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   26.17         84.81       370,246      1.54          (0.28)         1.76          (0.50)
1998--Class B
Shares..........   25.29         84.81        42,677      2.29          (0.92)         2.29          (0.92)
1998--Class C
Shares(b).......    5.51(d)      84.81         5,604      2.09(c)       (0.79)(c)      2.09(c)       (0.79)(c)
1998--Institu-
tional
Shares(b).......    6.08(d)      84.81        14,626      1.16(c)        0.27(c)       1.16(c)        0.27(c)
1998--Service
Shares(b).......    5.91(d)      84.81             2      1.45(c)       (0.07)(c)      1.45(c)       (0.07)(c)
- ------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   27.28         99.46       212,061      1.60          (0.72)         1.85          (0.97)
1997--Class B
Shares(b).......    5.39(d)      99.46         3,674      2.35(c)       (1.63)(c)      2.35(c)       (1.63)(c)
- ------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........    7.20         57.58       204,994      1.41          (0.59)         1.66          (0.84)
- ------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........  (17.53)        43.67       319,487      1.53          (0.53)         1.78          (0.78)
- ------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   30.13         56.81       261,074      1.60          (0.45)         1.85          (0.70)
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1993--Class A
Shares(b).......   17.86(d)       7.12        59,339      1.65(c)        0.62(c)       2.70(c)       (0.43)(c)
</TABLE>
- --------------------------------------------------------------------------------
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the investment
    at the NAV at the end of the period and no sales or redemption charges.
    Total return would be reduced if a sales or redemption charge were taken
    into account.
(b) Class A, Class B, Class C, Institutional and Service Share activity
    commenced on October 22, 1992, May 1, 1996, August 15, 1997, August 15,
    1997 and August 15, 1997, respectively.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
                                       16
<PAGE>
 
 
                      INVESTMENT OBJECTIVES AND POLICIES
 
 
  The investment objectives and principal investment policies of each Fund are
described below. Other investment practices and management techniques, which
involve certain risks are described under "Description of Securities," "Risk
Factors" and "Investment Techniques." There can be no assurance that a Fund's
investment objectives will be achieved.
 
  The Investment Adviser may purchase for the Funds common stocks, preferred
stocks, interests in real estate investment trusts, convertible debt
obligations, convertible preferred stocks, equity interests in trusts,
partnerships, joint ventures, limited liability companies and similar
enterprises, warrants and stock purchase rights ("equity securities"). In
choosing a Fund's securities, the Investment Adviser utilizes first-hand
fundamental research, including visiting company facilities to assess
operations and to meet decision-makers. The Investment Adviser may also use
macro analysis of numerous economic and valuation variables to anticipate
changes in company earnings and the overall investment climate. The Investment
Adviser is able to draw on the research and market expertise of the Goldman
Sachs Global Investment Research Department and other affiliates of the
Investment Adviser, as well as information provided by other securities
dealers. Equity securities in a Fund's portfolio will generally be sold when
the Investment Adviser believes that the market price fully reflects or
exceeds the securities' fundamental valuation or when other more attractive
investments are identified.
 
  Value Style Funds. The Growth and Income, Mid Cap Equity, Small Cap Value
Funds and a portion of the equity component of the Balanced Fund are managed
using a value oriented approach. The Investment Adviser evaluates securities
using fundamental analysis and intends to purchase equity securities that are,
in its view, underpriced relative to a combination of such companies' long-
term earnings prospects, growth rate, free cash flow and/or dividend-paying
ability. Consideration will be given to the business quality of the issuer.
Factors positively affecting the Investment Adviser's view of that quality
include the competitiveness and degree of regulation in the markets in which
the company operates, the existence of a management team with a record of
success, the position of the company in the markets in which it operates, the
level of the company's financial leverage and the sustainable return on
capital invested in the business. The Funds may also purchase securities of
companies that have experienced difficulties and that, in the opinion of the
Investment Adviser, are available at attractive prices.
 
  Growth Style Funds. The Capital Growth Fund and a portion of the equity
component of the Balanced Fund are managed using a growth equity oriented
approach. Equity securities for these Funds is selected based on their
prospects for above average growth. The Investment Adviser will select
securities of growth companies trading, in the Investment Adviser's opinion,
at a reasonable price relative to other industries, competitors and historical
price/earnings multiples. The Funds generally will invest in companies whose
earnings are believed to be in a relatively strong growth trend, or, to a
lesser extent, in companies in which significant further growth is not
anticipated but whose market value per share is thought to be undervalued. In
order to determine whether a security has favorable growth prospects, the
Investment Adviser ordinarily looks for one or more of the following
characteristics in relation to the security's prevailing price: prospects for
above average sales and earnings growth per share; high return on invested
capital; free cash flow generation; sound balance sheet, financial and
accounting policies, and overall financial strength; strong competitive
advantages; effective research, product development, and marketing; pricing
flexibility; strength of management; and general operating characteristics
that will enable the company to compete successfully in its marketplace.
 
 
                                      17
<PAGE>
 
  Quantitative Style Funds. The CORE Large Cap Value, CORE U.S. Equity, CORE
Large Cap Growth and CORE Small Cap Equity Funds (the "CORE Funds") are
managed using both quantitative and fundamental techniques. CORE is an acronym
for "Computer-Optimized, Research-Enhanced," which reflects the CORE Funds'
investment process. This investment process and the proprietary multifactor
model used to implement it are discussed below.
 
  Investment Process. The Investment Adviser begins with a broad universe of
U.S. equity securities for the CORE Funds. As described more fully below, the
Investment Adviser uses a proprietary multifactor model (the "Multifactor
Model") to forecast the returns of different markets and individual
securities. In the case of an equity security followed by the Goldman Sachs
Global Investment Research Department (the "Research Department"), a rating is
assigned based upon the Research Department's evaluation. In the discretion of
the Investment Adviser, ratings may also be assigned to equity securities
based on research ratings obtained from other industry sources.
 
  In building a diversified portfolio for each CORE Fund, the Investment
Adviser utilizes optimization techniques to seek to maximize the Fund's
expected return, while maintaining a risk profile similar to the Fund's
benchmark. Each portfolio is primarily comprised of securities rated highest
by the foregoing investment process and has risk characteristics and industry
weightings similar to the relevant Fund's benchmark.
 
  Multifactor Model. The Multifactor Model is a rigorous computerized rating
system for forecasting the returns of different equity markets and individual
equity securities according to fundamental investment characteristics. The
CORE Funds use the Multifactor Model to forecast the returns of securities
held in each Fund's portfolio. The Multifactor Model incorporates common
variables covering measures of value, growth, momentum and risk (e.g.,
book/price ratio, earnings/price ratio, price momentum, price volatility,
consensus growth forecasts, earnings estimate revisions and earnings
stability). All of the factors used in the Multifactor Model have been shown
to significantly impact the performance of the securities and markets they
were designed to forecast.
 
  The weightings assigned to the factors in the Multifactor Model used by the
CORE Funds are derived using a statistical formulation that considers each
factor's historical performance in different market environments. As such, the
Multifactor Model is designed to evaluate each security using only the factors
that are statistically related to returns in the anticipated market
environment. Because it includes many disparate factors, the Investment
Adviser believes that the Multifactor Model is broader in scope and provides a
more thorough evaluation than most conventional, quantitative models.
Securities and markets ranked highest by the Multifactor Model do not have one
dominant investment characteristic; rather, they possess an attractive
combination of investment characteristics.
 
  Research Department. In assigning ratings to equity securities, the Research
Department uses a four category rating system ranging from "recommended for
purchase" to "likely to underperform." The ratings reflect the analyst's
judgment as to the investment results of a specific security and incorporate
economic outlook, valuation, risk and a variety of other factors.
 
  By employing both a quantitative (i.e., the Multifactor Model) and a
qualitative (i.e., research enhanced) method of selecting securities, the CORE
Funds seek to capitalize on the strengths of each discipline.
 
 
                                      18
<PAGE>
 
 BALANCED FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term capital growth and current income. The Fund seeks capital
appreciation primarily through the equity component of its portfolio while
investing in fixed-income securities primarily to provide income for regular
quarterly dividends.
 
  Primary Investment Focus. The Fund invests, under normal circumstances,
between 45% and 65% of its total assets in equity securities. The Fund also
invests at least 25% of its total assets in fixed-income senior securities and
the remainder of its assets in other fixed-income securities and cash. The
percentage of the portfolio invested in equity and fixed-income securities
will vary from time to time as the Investment Adviser evaluates their relative
attractiveness based on market valuations, economic growth and inflation
prospects. This allocation is subject to the Fund's intention to pay regular
quarterly dividends. The amount of quarterly dividends can also be expected to
fluctuate in accordance with factors such as prevailing interest rates and the
percentage of the Fund's assets invested in fixed-income securities.
 
  Other. Although the Fund's equity investments consist primarily of publicly
traded U.S. securities, the Fund may invest up to 10% of its total assets in
the equity securities of foreign issuers, including issuers in Emerging
Countries and equity securities quoted in foreign currencies. A portion of the
Fund's portfolio of equity securities may be selected primarily to provide
current income. Equity securities selected to provide current income may
include interests in real estate investment trusts, convertible securities,
preferred stocks, utility stocks and interests in limited partnerships.
 
  The Fund's fixed-income securities primarily include securities issued by
the U.S. Government, its agencies, instrumentalities or sponsored enterprises,
corporations or other entities, mortgage-backed and asset-backed securities,
municipal securities and custodial receipts. The Fund may also invest in debt
obligations (U.S. dollar and non-U.S. dollar denominated) issued or guaranteed
by one or more foreign governments or any of their political subdivisions,
agencies or instrumentalities and foreign corporations or other entities. Such
securities are collectively referred to herein as "fixed-income securities."
The Fund's investments in fixed-income securities that are issued by foreign
issuers, including issuers in Emerging Countries, may not exceed 10% of the
Fund's total assets. The Fund may employ certain currency techniques to seek
to hedge against currency exchange rate fluctuations or to seek to increase
total return. When used to seek to enhance return, these management techniques
are considered speculative. Such currency management techniques involve risks
different from those associated with investing solely in securities of U.S.
issuers quoted in U.S. dollars. See "Description of Securities," "Investment
Techniques" and "Risk Factors."
 
 GROWTH AND INCOME FUND
 
 
  Objectives. The Fund's investment objectives are to provide investors with
long-term growth of capital and growth of income.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 65% of its total assets in equity securities that the Investment Adviser
considers to have favorable prospects for capital appreciation and/or
dividend-paying ability.
 
  Other. The Fund may invest up to 35% of its total assets in fixed-income
securities that, in the opinion of the Investment Adviser, offer the potential
to further the Fund's investment objectives. In addition, although the Fund
will invest primarily in publicly traded U.S. securities, it may invest up to
25% of its total assets in foreign securities, including securities of issuers
in Emerging Countries and securities quoted in foreign currencies.
 
                                      19
<PAGE>
 
 CORE LARGE CAP VALUE FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term growth of capital and dividend income. The Fund seeks to achieve its
objective through a broadly diversified portfolio of equity securities of
large cap U.S. issuers that are selling at low to modest valuations relative
to general market measures such as earnings, book value and other fundamental
accounting measures, and that are expected to have favorable prospects for
capital appreciation and/or dividend-paying ability.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 90% of its total assets in equity securities of U.S. issuers, including
certain foreign issuers that are traded in the United States. The Fund's
investments are selected using both a variety of quantitative techniques and
fundamental research in seeking to maximize the Fund's expected return, while
maintaining risk, style, capitalization and industry characteristics similar
to the Russell 1000 Value Index. The Fund seeks a portfolio comprised of
companies with above average capitalizations and low to moderate valuations as
measured by price/earnings ratios, book value and other fundamental accounting
measures. The Fund's investments in fixed-income securities are limited to
securities that are considered cash equivalents.
 
  For a description of the investment process of the Fund, see "Investment
Objectives and Policies--Quantitative Style Funds."
 
 CORE U.S. EQUITY FUND (FORMERLY, THE "SELECT EQUITY FUND")
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term growth of capital and dividend income. The Fund seeks to achieve its
objective through a broadly diversified portfolio of large cap and blue chip
equity securities representing all major sectors of the U.S. economy.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 90% of its total assets in equity securities of U.S. issuers, including
certain foreign issuers that are traded in the United States. The Fund's
investments are selected using both a variety of quantitative techniques and
fundamental research in seeking to maximize the Fund's expected return, while
maintaining risk, style, capitalization and industry characteristics similar
to the S&P 500 Index. The Fund seeks a broad representation in most major
sectors of the U.S. economy and a portfolio comprised of companies with
average long-term earnings growth expectations and dividend yields. The Fund's
investments in fixed-income securities are limited to securities that are
considered cash equivalents.
 
  For a description of the investment process of the Fund, see "Investment
Objectives and Policies--Quantitative Style Funds."
 
 CORE LARGE CAP GROWTH FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term growth of capital. The Fund seeks to achieve its objective through a
broadly diversified portfolio of equity securities of large cap U.S. issuers
that are expected to have better prospects for earnings growth than the growth
rate of the general domestic economy. Dividend income is a secondary
consideration.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 90% of its total assets in equity securities of U.S. issuers, including
certain foreign issuers that are traded in the United States. The Investment
Adviser emphasizes a company's growth prospects in analyzing equity securities
to be purchased by
 
                                      20
<PAGE>
 
the Fund. The Fund's investments are selected using both a variety of
quantitative techniques and fundamental research in seeking to maximize the
Fund's expected return, while maintaining risk, style, capitalization and
industry characteristics similar to the Russell 1000 Growth Index. The Fund
seeks a portfolio comprised of companies with above average capitalizations
and earnings growth expectations and below average dividend yields. The Fund's
investments in fixed-income securities are limited to securities that are
considered cash equivalents.
 
  For a description of the investment process of the Fund, see "Investment
Objectives and Policies--Quantitative Style Funds."
 
 CORE SMALL CAP EQUITY FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term growth of capital. The Fund seeks to achieve its objective through a
broadly diversified portfolio of equity securities of U.S. issuers which are
included in the Russell 2000 Index at the time of investment.
 
   Primary Investment Focus. The Fund invests, under normal circumstances, at
least 90% of its total assets in equity securities of U.S. issuers, including
certain foreign issuers that are traded in the United States. The Fund's
investments are selected using both a variety of quantitative techniques and
fundamental research in seeking to maximize the Fund's expected return, while
maintaining risk, style, capitalization and industry characteristics similar
to the Russell 2000 Index. The Fund seeks a portfolio comprised of companies
with small market capitalizations, strong expected earnings growth and
momentum, and better valuation and risk characteristics than the Russell 2000
Index. The Fund's investments in fixed-income securities are limited to
securities that are considered cash equivalents.
 
  The Investment Adviser believes that companies in which the Fund may invest
offer greater opportunity for growth of capital than larger, more mature,
better known companies. Investments in small market capitalization issuers
involve special risks. See "Description of Securities" and "Risk Factors." If
the issuer of a portfolio security held by the Fund is no longer included in
the Russell 2000 Index, the Fund may, but is not required to, sell the
security.
 
  For a description of the investment process of the Fund, see "Investment
Objectives and Policies--Quantitative Style Funds."
 
 CAPITAL GROWTH FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term growth of capital.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 90% of its total assets in equity securities. The Fund seeks to achieve
its investment objective by investing in a diversified portfolio of equity
securities that are considered by the Investment Adviser to have long-term
capital appreciation potential.
 
  Other. Although the Fund will invest primarily in publicly traded U.S.
securities, it may invest up to 10% of its total assets in foreign securities,
including securities of issuers in Emerging Countries and securities quoted in
foreign currencies.
 
                                      21
<PAGE>
 
 MID CAP EQUITY FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term capital appreciation.
 
  Primary Investment Focus. The Fund invests, under normal circumstances,
substantially all of its assets in equity securities and at least 65% of its
total assets in equity securities of Mid-Cap Companies with public stock
market capitalizations (based upon shares available for trading on an
unrestricted basis) within the range of the market capitalization of companies
constituting the Russell Midcap Index at the time of investment (currently
between $400 million and $16 billion). If the capitalization of an issuer
increases above $16 billion after purchase of such issuer's securities, the
Fund may, but is not required to, sell the securities. Dividend income, if
any, is an incidental consideration.
 
  Other. The Fund may invest up to 35% of its total assets in fixed-income
securities. In addition, although the Fund will invest primarily in publicly
traded U.S. securities, it may invest up to 25% of its total assets in foreign
securities, including securities of issuers in Emerging Countries and
securities quoted in foreign currencies.
 
 SMALL CAP VALUE FUND (FORMERLY, THE "SMALL CAP EQUITY FUND")
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term capital growth.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 65% of its total assets in equity securities of companies with public
stock market capitalizations of $1 billion or less at the time of investment.
Under normal circumstances, the Fund's investment horizon for ownership of
stocks will be two to three years. Dividend income, if any, is an incidental
consideration. If the market capitalization of a company held by the Fund
increases above the amount stated above, the Fund may, consistent with its
investment objective, continue to hold the security.
 
  Small Capitalization Companies. The Fund invests in companies which the
Investment Adviser believes are well managed niche businesses that have the
potential to achieve high or improving returns on capital and/or above average
sustainable growth. The Fund may invest in securities of small market
capitalization companies which may have experienced financial difficulties.
Investments may also be made in companies that are in the early stages of
their life and that the Investment Adviser believes have significant growth
potential. The Investment Adviser believes that the companies in which the
Fund may invest offer greater opportunity for growth of capital than larger,
more mature, better known companies. However, investments in such small market
capitalization companies involve special risks. See "Description of
Securities" and "Risk Factors."
 
  Other. The Fund may invest in the aggregate up to 35% of its total assets in
the equity securities of companies with public stock market capitalizations in
excess of $1 billion at the time of investment and in fixed- income
securities. In addition, although the Fund will invest primarily in publicly
traded U.S. securities, it may invest up to 25% of its total assets in foreign
securities, including securities of issuers in Emerging Countries and
securities quoted in foreign currencies.
 
 
                           DESCRIPTION OF SECURITIES
 
 
  The Funds may invest in equity and fixed-income securities in accordance
with the investment policies stated above. Certain of these permitted
investments are described in more detail in this section.
 
                                      22
<PAGE>
 
CONVERTIBLE SECURITIES
 
  Each Fund may invest in convertible securities, including debt obligations
and preferred stock of the issuer convertible at a stated exchange rate into
common stock of the issuer. Convertible securities generally offer lower
interest or dividend yields than non-convertible securities of similar
quality. As with all fixed-income securities, the market value of convertible
securities tends to decline as interest rates increase and, conversely, to
increase as interest rates decline. However, when the market price of the
common stock underlying a convertible security exceeds the conversion price,
the convertible security tends to reflect the market price of the underlying
common stock. As the market price of the underlying common stock declines, the
convertible security tends to trade increasingly on a yield basis, and thus
may not decline in price to the same extent as the underlying common stock.
Convertible securities rank senior to common stocks in an issuer's capital
structure and consequently entail less risk than the issuer's common stock. In
evaluating a convertible security, the Investment Adviser will give primary
emphasis to the attractiveness of the underlying common stock. The convertible
debt securities in which the Balanced Fund invests will be rated, at the time
of investment, B or better by Standard & Poor's Ratings Group ("Standard &
Poor's") or Moody's Investors Service, Inc. ("Moody's"), or if unrated by such
rating organizations, determined to be of comparable quality by the Investment
Adviser. The convertible securities in which the CORE Funds invest are not
subject to any minimum rating criteria. The convertible debt securities in
which the other Funds may invest are subject to the same rating criteria as a
Fund's investments in non-convertible debt securities. Convertible debt
securities are equity investments for purposes of each Fund's investment
policies.
 
FOREIGN INVESTMENTS
 
  FOREIGN SECURITIES. Each Fund may invest in the securities of foreign
issuers (provided that the CORE Funds may only invest in equity securities of
foreign issuers that are traded in the U.S.). Investments in foreign
securities may offer potential benefits that are not available from
investments exclusively in equity securities of domestic issuers quoted in
U.S. dollars. Foreign countries may have economic policies or business cycles
different from those of the U.S. and markets for foreign securities do not
necessarily move in a manner parallel to U.S. markets.
 
  Investing in the securities of foreign issuers involves certain special
risks, including those set forth below, which are not typically associated
with investing in U.S. dollar denominated or quoted securities of U.S.
issuers. Such investments may be affected by changes in currency rates,
changes in foreign or U.S. laws or restrictions applicable to such investments
and in exchange control regulations (e.g., currency blockage). A decline in
the exchange rate of the currency (i.e., weakening of the currency against the
U.S. dollar) in which a portfolio security is quoted or denominated relative
to the U.S. dollar would reduce the value of the portfolio security. In
addition, if the currency in which a Fund receives dividends, interest or
other payments declines in value against the U.S. dollar before such income is
distributed as dividends to shareholders or converted to U.S. dollars, the
Fund may have to sell portfolio securities to obtain sufficient cash to pay
such dividends. The introduction of a single currency, the euro, on January 1,
1999 for participating European nations in the Economic and Monetary Union
("EU") presents unique uncertainties, including whether the payment and
operational systems of banks and other financial institutions will encounter
difficulties; the creation of suitable clearing and settlement payment systems
for the new currency; the legal treatment of certain outstanding financial
contracts after January 1, 1999 that refer to existing currencies rather than
the euro; the establishment and maintenance of exchange rates for currencies
being converted into the euro and the euro; the fluctuation of the euro
relative to non-euro currencies during the transition period from January 1,
1999 to December 31, 2001 and beyond; whether the interest rate, tax and labor
regimes of European countries participating in the euro will converge over
time; and whether the
 
                                      23
<PAGE>
 
conversion of the currencies of other EU countries such as the United Kingdom
and Denmark into the euro and the admission of other non-EU countries such as
Poland, Latvia and Lithuania as members of the EU may have an impact on the
euro. These or other factors, including political and economic risks, could
cause market disruptions before or after the introduction of the euro, and
could adversely affect the value of securities and foreign currencies held by
the Funds. Commissions on transactions in foreign securities may be higher
than those for similar transactions on domestic stock markets. In addition,
clearance and settlement procedures may be different in foreign countries and,
in certain markets, such procedures have been unable to keep pace with the
volume of securities transactions, thus making it difficult to conduct such
transactions.
 
  Foreign issuers are not generally subject to uniform accounting, auditing
and financial reporting standards comparable to those applicable to U.S.
issuers. There may be less publicly available information about a foreign
issuer than about a U.S. issuer. In addition, there is generally less
government regulation of foreign markets, companies and securities dealers
than in the United States. Foreign securities markets may have substantially
less volume than U.S. securities markets and securities of many foreign
issuers are less liquid and more volatile than securities of comparable
domestic issuers. Furthermore, with respect to certain foreign countries,
there is a possibility of nationalization, expropriation or confiscatory
taxation, imposition of withholding or other taxes on dividend or interest
payments (or, in some cases, capital gains), limitations on the removal of
funds or other assets of the Funds, political or social instability or
diplomatic developments which could affect investments in those countries.
 
  INVESTMENTS IN ADRS, EDRS AND GDRS. Each Fund may invest in foreign
securities which take the form of sponsored and unsponsored American
Depository Receipts ("ADRs") and Global Depository Receipts ("GDRs") and each
Fund, other than the CORE Funds, may also invest in European Depository
Receipts ("EDRs") or other similar instruments representing securities of
foreign issuers (together, "Depository Receipts"). ADRs represent the right to
receive securities of foreign issuers deposited in a domestic bank or a
correspondent bank. Prices of ADRs are quoted in U.S. dollars, and ADRs are
traded in the United States on exchanges or over-the-counter and are sponsored
and issued by domestic banks. EDRs and GDRs are receipts evidencing an
arrangement with a non-U.S. bank. EDRs and GDRs are not necessarily quoted in
the same currency as the underlying security. To the extent a Fund acquires
Depository Receipts through banks which do not have a contractual relationship
with the foreign issuer of the security underlying the Depository Receipts to
issue and service such Depository Receipts (unsponsored Depository Receipts),
there may be an increased possibility that the Fund would not become aware of
and be able to respond to corporate actions, such as stock splits or rights
offerings involving the foreign issuer, in a timely manner. In addition, the
lack of information may result in inefficiencies in the valuation of such
instruments. Investment in Depository Receipts does not eliminate all the
risks inherent in investing in securities of non-U.S. issuers. The market
value of Depository Receipts is dependent upon the market value of the
underlying securities and fluctuations in the relative value of the currencies
in which the Depository Receipt and the underlying securities are quoted.
However, by investing in Depository Receipts, such as ADRs, that are quoted in
U.S. dollars, a Fund may avoid currency risks during the settlement period for
purchases and sales.
 
  FOREIGN CURRENCY TRANSACTIONS. Because investment in foreign issuers will
usually involve currencies of foreign countries, and because the Balanced Fund
may have currency exposure independent of its securities positions, the value
of the assets of a Fund as measured in U.S. dollars will be affected by
changes in foreign currency exchange rates. A Fund may, to the extent it
invests in foreign securities, purchase or sell foreign currencies on a spot
basis and may also purchase or sell forward foreign currency exchange
contracts for hedging
 
                                      24
<PAGE>
 
purposes and to seek to protect against anticipated changes in future foreign
currency exchange rates. In addition, the Balanced Fund may enter into such
contracts to seek to increase total return when the Investment Adviser
anticipates that the foreign currency will appreciate or depreciate in value,
but securities denominated or quoted in that currency do not present
attractive investment opportunities and are not held in the Fund's portfolio.
When entered into to seek to enhance return, forward foreign currency exchange
contracts are considered speculative. The Balanced Fund may also engage in
cross-hedging by using forward contracts in a currency different from that in
which the hedged security is denominated or quoted if the Investment Adviser
determines that there is a pattern of correlation between the two currencies.
If a Fund enters into a forward foreign currency exchange contract to buy
foreign currency for any purpose or the Balanced Fund enter into forward
foreign currency exchange contracts to sell foreign currency to seek to
increase total return, the Fund will segregate cash or liquid assets in an
amount equal to the value of the Fund's total assets committed to the
consummation of the forward contract, or otherwise cover its position in a
manner permitted by the SEC. The Fund will incur costs in connection with
conversions between various currencies. A Fund may hold foreign currency
received in connection with investments in foreign securities when, in the
judgment of the Investment Adviser, it would be beneficial to convert such
currency into U.S. dollars at a later date, based on anticipated changes in
the relevant exchange rate.
 
  Currency exchange rates may fluctuate significantly over short periods of
time causing, along with other factors, a Fund's NAV to fluctuate. Currency
exchange rates generally are determined by the forces of supply and demand in
the foreign exchange markets and the relative merits of investments in
different countries, actual or anticipated changes in interest rates and other
complex factors, as seen from an international perspective. Currency exchange
rates also can be affected unpredictably by the intervention of U.S. or
foreign governments or central banks, or the failure to intervene, or by
currency controls or political developments in the U.S. or abroad. To the
extent that a substantial portion of a Fund's total assets, adjusted to
reflect the Fund's net position after giving effect to currency transactions,
is denominated or quoted in the currencies of foreign countries, the Fund will
be more susceptible to the risk of adverse economic and political developments
within those countries.
 
  The market in forward foreign currency exchange contracts, currency swaps
and other privately negotiated currency instruments offers less protection
against defaults by the other party to such instruments than is available for
currency instruments traded on an exchange. Such contracts are subject to the
risk that the counterparty to the contract will default on its obligations.
Since these contracts are not guaranteed by an exchange or clearinghouse, a
default on the contract would deprive the Fund of unrealized profits,
transaction costs or the benefits of a currency hedge or force the Fund to
cover its purchase or sale commitments, if any, at the current market price. A
Fund will not enter into forward foreign currency exchange contracts, currency
swaps or other privately negotiated currency instruments unless the credit
quality of the unsecured senior debt or the claims-paying ability of the
counterparty is considered to be investment grade by the Investment Adviser.
 
  The Balanced Fund may also engage in a variety of foreign currency
management techniques. For a discussion of such instruments and the risks
associated with their use, see "Investment Objective and Policies" in the
Additional Statement.
 
FIXED-INCOME SECURITIES
 
  U.S. GOVERNMENT SECURITIES. Each Fund may invest in U.S. Government
securities. Generally, these securities include U.S. Treasury obligations and
obligations issued or guaranteed by U.S. Government agencies,
instrumentalities or sponsored enterprises. U.S. Government securities also
include Treasury receipts and other
 
                                      25
<PAGE>
 
stripped U.S. Government securities, where the interest and principal
components of stripped U.S. Government securities are traded independently. A
Fund may also invest in zero coupon U.S. Treasury securities and in zero
coupon securities issued by financial institutions, which represent a
proportionate interest in underlying U.S. Treasury securities. A zero coupon
security pays no interest to its holder during its life and its value consists
of the difference between its face value at maturity and its cost. The market
prices of zero coupon securities generally are more volatile than the market
prices of securities that pay interest periodically. See "Taxation" in the
Additional Statement.
 
  FOREIGN GOVERNMENT SECURITIES. The Balanced Fund may invest in debt
obligations of foreign governments and governmental agencies, including those
of Emerging Countries. Investment in sovereign debt obligations involves
special risks not present in debt obligations of corporate issuers. The issuer
of the debt or the governmental authorities that control the repayment of the
debt may be unable or unwilling to repay principal or interest when due in
accordance with the terms of such debt, and the Fund may have limited recourse
in the event of a default. Periods of economic uncertainty may result in the
volatility of market prices of sovereign debt, and in turn the Fund's NAV, to
a greater extent than the volatility inherent in debt obligations of U.S.
issuers. A sovereign debtor's willingness or ability to repay principal and
pay interest in a timely manner may be affected by, among other factors, its
cash flow situation, the extent of its foreign currency reserves, the
availability of sufficient foreign exchange on the date a payment is due, the
relative size of the debt service burden to the economy as a whole, the
sovereign debtor's policy toward international lenders and the political
constraints to which a sovereign debtor may be subject.
 
  MORTGAGE-BACKED AND ASSET-BACKED SECURITIES. Each Fund (other than the CORE
Funds) may invest in mortgage-backed securities ("Mortgage-Backed
Securities"), which represent direct or indirect participations in, or are
collateralized by and payable from, mortgage loans secured by real property.
Each Fund (other than the CORE Funds) may also invest in asset-backed
securities ("Asset-Backed Securities"). The principal and interest payments on
Asset-Backed Securities are collateralized by pools of assets such as auto
loans, credit card receivables, leases, installment contracts and personal
property. Such asset pools are securitized through the use of special purpose
trusts or corporations. Principal and interest payments may be credit enhanced
by a letter of credit, a pool insurance policy or a senior/subordinated
structure.
 
  The Balanced Fund may also invest in stripped Mortgage-Backed Securities
("SMBS") (including interest only and principal only securities), which are
derivative multiple class Mortgage-Backed Securities. SMBS are usually
structured with two different classes: one that receives 100% of the interest
payments and the other that receives 100% of the principal payments from a
pool of mortgage loans. If the underlying mortgage loans experience different
than anticipated prepayments of principal, the Fund may fail to recoup fully
its initial investment in these securities. The market value of the class
consisting entirely of principal payments generally is unusually volatile in
response to changes in interest rates. The yields on a class of SMBS that
receives all or most of the interest from mortgage loans are generally higher
than prevailing market yields on other Mortgage-Backed Securities because
their cash flow patterns are more volatile and there is a greater risk that
the initial investment will not be fully recouped. The Fund's investments in
SMBS may require the Fund to sell portfolio securities to generate sufficient
cash to satisfy certain income distribution requirements.
 
  CORPORATE DEBT OBLIGATIONS. Each Fund may invest in corporate debt
obligations. Corporate debt obligations are subject to the risk of an issuer's
inability to meet principal and interest payments on the obligations.
 
 
                                      26
<PAGE>
 
  BANK OBLIGATIONS. Each Fund may invest in obligations issued or guaranteed
by U.S. or foreign banks. Bank obligations, including without limitations,
time deposits, bankers' acceptances and certificates of deposit, may be
general obligations of the parent bank or may be limited to the issuing branch
by the terms of the specific obligations or by government regulation. Banks
are subject to extensive but different governmental regulations which may
limit both the amount and types of loans which may be made and interest rates
which may be charged. In addition, the profitability of the banking industry
is largely dependent upon the availability and cost of funds for the purpose
of financing lending operations under prevailing money market conditions.
General economic conditions as well as exposure to credit losses arising from
possible financial difficulties of borrowers play an important part in the
operation of this industry.
 
  STRUCTURED SECURITIES. Each Fund may invest in structured securities. The
value of the principal of and/or interest on such securities is determined by
reference to changes in the value of specific currencies, interest rates,
commodities, indices or other financial indicators (the "Reference") or the
relative change in two or more References. The interest rate or the principal
amount payable upon maturity or redemption may be increased or decreased
depending upon changes in the applicable Reference. The terms of the
structured securities may provide that in certain circumstances no principal
is due at maturity and, therefore, result in the loss of a Fund's investment.
Structured securities may be positively or negatively indexed, so that
appreciation of the Reference may produce an increase or decrease in the
interest rate or value of the security at maturity. In addition, changes in
the interest rates or the value of the security at maturity may be a multiple
of changes in the value of the Reference. Consequently, structured securities
may entail a greater degree of market risk than other types of fixed-income
securities. Structured securities may also be more volatile, less liquid and
more difficult to price accurately than less complex securities.
 
  RATING CRITERIA. Except as noted below, each Fund (other than the CORE
Funds, which only invest in debt instruments that are cash equivalents) may
invest in debt securities rated at least investment grade at the time of
investment. Investment grade debt securities are securities rated BBB or
higher by Standard & Poor's or Baa or higher by Moody's. A security will be
deemed to have met a rating requirement if it receives the minimum required
rating from at least one such rating organization even though it has been
rated below the minimum rating by one or more other rating organizations, or
if unrated by such rating organizations, determined by the Investment Adviser
to be of comparable credit quality. The Balanced Fund may invest up to 10% of
its total assets on debt securities that are rated BB or B by Standard &
Poor's or Ba or B by Moody's. The Growth and Income, Capital Growth and Small
Cap Value Funds may invest up to 10%, 10% and 35%, respectively, of their
total assets in debt securities which are unrated or rated in the lowest
rating categories by Standard & Poor's or Moody's (i.e., BB or lower by
Standard & Poor's or Ba or lower by Moody's), including securities rated D by
Moody's or Standard & Poor's. Mid Cap Equity Fund may invest up to 10% of its
total assets in below investment grade debt securities rated B or higher by
Standard & Poor's or B or higher by Moody's. Fixed-income securities rated BBB
or Baa are considered medium-grade obligations with speculative
characteristics, and adverse economic conditions or changing circumstances may
weaken their issuers' capacity to pay interest and repay principal. Fixed-
income securities rated BB or Ba or below (or comparable unrated securities)
are commonly referred to as "junk bonds," are considered predominately
speculative and may be questionable as to principal and interest payments. In
some cases, such bonds may be highly speculative, have poor prospects for
reaching investment grade standing and be in default. As a result, investment
in such bonds will entail greater speculative risks than those associated with
investment in investment grade bonds. Also, to the extent that the rating
assigned to a security in a Fund's portfolio is downgraded by a rating
organization, the market price and liquidity of such security may be adversely
affected. See Appendix A to the Additional Statement for a description of the
corporate bond ratings assigned by Standard & Poor's and Moody's.
 
                                      27
<PAGE>
 
REAL ESTATE INVESTMENT TRUSTS ("REITS")
 
  Each Fund may invest in REITs, which are pooled investment vehicles that
invest primarily in either real estate or real estate related loans. The value
of a REIT is affected by changes in the value of the properties owned by the
REIT or securing mortgage loans held by the REIT. REITs are dependent upon
cash flow from their investments to repay financing costs and the ability of
the REITs' manager. REITs are also subject to risks generally associated with
investments in real estate. A Fund will indirectly bear its proportionate
share of any expenses, including management fees, paid by a REIT in which it
invests.
 
 
                             INVESTMENT TECHNIQUES
 
 
OPTIONS ON SECURITIES AND SECURITIES INDICES
 
  Each Fund (other than the CORE Large Cap Value, CORE U.S. Equity and CORE
Large Cap Growth Funds) may write (sell) covered call and put options and
purchase call and put options on any securities in which it may invest or on
any securities index composed of securities in which it may invest. The
writing and purchase of options is a highly specialized activity which
involves investment techniques and risks different from those associated with
ordinary portfolio securities transactions. The use of options to seek to
increase total return involves the risk of loss if the Investment Adviser is
incorrect in its expectation of fluctuations in securities prices or interest
rates. The successful use of options for hedging purposes also depends in part
on the ability of the Investment Adviser to manage future price fluctuations
and the degree of correlation between the options and securities markets. If
the Investment Adviser is incorrect in its expectation of changes in
securities prices or determination of the correlation between the securities
indices on which options are written and purchased and the securities in a
Fund's investment portfolio, the investment performance of the Fund will be
less favorable than it would have been in the absence of such options
transactions. The writing of options could significantly increase a Fund's
portfolio turnover rate and, therefore, associated brokerage commissions or
spreads.
 
OPTIONS ON FOREIGN CURRENCIES
 
  A Fund may, to the extent it invests in foreign securities, purchase and
sell (write) call and put options on foreign currencies for the purpose of
protecting against declines in the U.S. dollar value of foreign portfolio
securities and anticipated dividends on such securities and against increases
in the U.S. dollar cost of foreign securities to be acquired. In addition, the
Balanced Fund may use options on currency to cross-hedge, which involves
writing or purchasing options on one currency to hedge against changes in
exchange rates for a different currency, if there is a pattern of correlation
between the two currencies. As with other kinds of options transactions,
however, the writing of an option on a foreign currency will constitute only a
partial hedge, up to the amount of the premium received. If an option that a
Fund has written is exercised, the Fund could be required to purchase or sell
foreign currencies at disadvantageous exchange rates, thereby incurring
losses. The purchase of an option on foreign currency may constitute an
effective hedge against exchange rate fluctuations; however, in the event of
exchange rate movements adverse to a Fund's position, the Fund may forfeit the
entire amount of the premium plus related transaction costs. In addition to
purchasing call and put options for hedging purposes, the Balanced Fund may
purchase call or put options on currency to seek to increase total return when
the Investment Adviser anticipates that the currency will appreciate or
depreciate in value, but the securities quoted or denominated in that currency
do not present attractive investment opportunities and are not held in the
Fund's portfolio. When purchased or sold to seek to increase total return,
options on currencies are considered speculative. Options on foreign
currencies written or purchased by the Funds are traded on U.S. and foreign
exchanges or over-the-counter.
 
                                      28
<PAGE>
 
FUTURES CONTRACTS AND OPTIONS ON FUTURES CONTRACTS
 
  To seek to increase total return or to hedge against changes in interest
rates, securities prices or currency exchange rates, a Fund may purchase and
sell various kinds of futures contracts, and purchase and write call and put
options on any of such futures contracts. Each Fund may also enter into
closing purchase and sale transactions with respect to any such contracts and
options. The futures contracts may be based on various securities (such as
U.S. Government securities), foreign currencies, securities indices and other
financial instruments and indices. The CORE Large Cap Value, CORE U.S. Equity
and CORE Large Cap Growth Funds may enter into such transactions only with
respect to the S&P 500 Index in the case of the CORE U.S. Equity Fund and a
representative index in the case of the CORE Large Cap Value and CORE Large
Cap Growth Funds. A Fund will engage in futures and related options
transactions for bona fide hedging purposes as defined in regulations of the
Commodity Futures Trading Commission or to seek to increase total return to
the extent permitted by such regulations. A Fund may not purchase or sell
futures contracts or purchase or sell related options to seek to increase
total return, except for closing purchase or sale transactions, if immediately
thereafter the sum of the amount of initial margin deposits and premiums paid
on the Fund's outstanding positions in futures and related options entered
into for the purpose of seeking to increase total return would exceed 5% of
the market value of the Fund's net assets. These transactions involve
brokerage costs, require margin deposits and, in the case of contracts and
options obligating a Fund to purchase securities or currencies, require the
Fund to segregate and maintain cash or liquid assets with a value equal to the
amount of the Fund's obligations or to otherwise cover the obligations in a
manner permitted by the SEC.
 
  While transactions in futures contracts and options on futures may reduce
certain risks, such transactions themselves entail certain other risks. See
"Investment Objectives and Policies--Futures Contracts and Options on Future
Contracts" in the Additional Statement. Thus, while a Fund may benefit from
the use of futures and options on futures, unanticipated changes in interest
rates, securities prices or currency exchange rates may result in poorer
overall performance than if the Fund had not entered into any futures
contracts or options transactions. Because perfect correlation between a
futures position and portfolio position that is intended to be protected is
impossible to achieve, the desired protection may not be obtained and a Fund
may be exposed to risk of loss. The loss incurred by a Fund in entering into
futures contracts and in writing call options on futures is potentially
unlimited and may exceed the amount of the premium received. Futures markets
are highly volatile and the use of futures may increase the volatility of a
Fund's NAV. The profitability of a Fund's trading in futures to seek to
increase total return depends upon the ability of the Investment Adviser to
analyze correctly the futures markets. In addition, because of the low margin
deposits normally required in futures trading, a relatively small price
movement in a futures contract may result in substantial losses to a Fund.
Further, futures contracts and options on futures may be illiquid, and
exchanges may limit fluctuations in futures contract prices during a single
day. The Funds may engage in futures transactions on both U.S. and foreign
exchanges. Foreign exchanges may not provide the same protection as U.S.
exchanges.
 
STANDARD AND POOR'S DEPOSITORY RECEIPTS
 
  Each Fund may, consistent with its objectives, purchase Standard & Poor's
Depository Receipts ("SPDRs"). SPDRs are American Stock Exchange-traded
securities that represent ownership in the SPDR Trust, a trust which has been
established to accumulate and hold a portfolio of common stocks that is
intended to track the price performance and dividend yield of the S&P 500.
This trust is sponsored by a subsidiary of the American Stock Exchange. SPDRs
may be used for several reasons, including but not limited to: facilitating
the handling of cash flows or trading, or reducing transaction costs. The use
of SPDRs would introduce additional risk to the
 
                                      29
<PAGE>
 
Fund as the price movement of the instrument does not perfectly correlate with
the price action of the underlying index.
 
EQUITY SWAPS
 
  Each Fund may invest up to 10% of its total assets in equity swaps. Equity
swaps allow the parties to a swap agreement to exchange the dividend income or
other components of return on an equity investment (e.g., a group of equity
securities or an index) for a component of return on another non-equity or
equity investment. An equity swap may be used by a Fund to invest in a market
without owning or taking physical custody of securities in circumstances in
which direct investment may be restricted for legal reasons or is otherwise
impractical. Equity swaps are derivatives and their value can be very
volatile. To the extent that the Investment Adviser does not accurately
analyze and predict the potential relative fluctuation of the components
swapped with another party, a Fund may suffer a loss. The value of some
components of an equity swap (such as the dividends on a common stock) may
also be sensitive to changes in interest rates. Furthermore, during the period
a swap is outstanding, a Fund may suffer a loss if the counterparty defaults.
In connection with its investments in equity swaps, a Fund will either
segregate cash or liquid assets or otherwise cover its obligations in a manner
required by the SEC.
 
WHEN-ISSUED SECURITIES AND FORWARD COMMITMENTS
 
  Each Fund may purchase when-issued securities. When-issued transactions
arise when securities are purchased by a Fund with payment and delivery taking
place in the future in order to secure what is considered to be an
advantageous price and yield to the Fund at the time of entering into the
transaction. Each Fund may also purchase or sell securities on a forward
commitment basis; that is, make contracts to purchase or sell securities for a
fixed price at a future date beyond the customary three-day settlement period.
The purchase of securities on a when-issued or forward commitment basis
involves a risk of loss if the value of the security to be purchased declines
prior to the settlement date. Conversely, securities sold on a forward
commitment basis involve the risk that the value of the securities to be sold
may increase prior to the settlement date. Although a Fund would generally
purchase securities on a when-issued or forward commitment basis with the
intention of acquiring securities for its portfolio, a Fund may dispose of
when-issued securities or forward commitments prior to settlement if the
Investment Adviser deems it appropriate to do so. A Fund will segregate cash
or liquid assets in an amount sufficient to meet the purchase price until
three days prior to the settlement date. Alternatively, each Fund may enter
into offsetting contracts for the forward sale of other securities that it
owns.
 
ILLIQUID AND RESTRICTED SECURITIES
 
  A Fund will not invest more than 15% of its net assets in illiquid
investments, which include securities (both foreign and domestic) that are not
readily marketable, certain SMBS, repurchase agreements maturing in more than
seven days, time deposits with a notice or demand period of more than seven
days, certain over-the-counter options and certain restricted securities,
unless it is determined, based upon a review of the trading markets for a
specific restricted security, that such restricted security is eligible for
resale under Rule 144A under the Securities Act of 1933 and, therefore, is
liquid. The Trustees have adopted guidelines under which the Investment
Adviser determines and monitors the liquidity of portfolio securities, subject
to the oversight of the Trustees. Investing in restricted securities eligible
for resale pursuant to Rule 144A may decrease the liquidity of a Fund's
portfolio to the extent that qualified institutional buyers become for a time
uninterested in purchasing these restricted securities. The purchase price and
subsequent valuation of restricted and illiquid securities normally reflect a
discount, which may be significant, from the market price of comparable
securities for which a liquid market exists.
 
                                      30
<PAGE>
 
REPURCHASE AGREEMENTS
 
  Each Fund may enter into repurchase agreements with dealers in U.S.
Government securities and member banks of the Federal Reserve System which
furnish collateral at least equal in value or market price to the amount of
their repurchase obligation. The Balanced Fund may also enter into repurchase
agreements involving certain foreign government securities. If the other party
or "seller" defaults, a Fund might suffer a loss to the extent that the
proceeds from the sale of the underlying securities and other collateral held
by the Fund in connection with the related repurchase agreement are less than
the repurchase price. In addition, in the event of bankruptcy of the seller or
failure of the seller to repurchase the securities as agreed, a Fund could
suffer losses, including loss of interest on or principal of the security and
costs associated with delay and enforcement of the repurchase agreement. The
Trustees have reviewed and approved certain counterparties whom they believe
to be creditworthy and have authorized the Funds to enter into repurchase
agreements with such counterparties. In addition, each Fund, together with
other registered investment companies having management agreements with an
Investment Adviser or its affiliates, may transfer uninvested cash balances
into a single joint account, the daily aggregate balance of which will be
invested in one or more repurchase agreements.
 
LENDING OF PORTFOLIO SECURITIES
 
  Each Fund may also seek to increase its income by lending portfolio
securities. Under present regulatory policies, such loans may be made to
institutions, such as certain broker-dealers, and are required to be secured
continuously by collateral in cash, cash equivalents, or U.S. Government
securities maintained on a current basis in an amount at least equal to the
market value of the securities loaned. Cash collateral may be invested in cash
equivalents. If the Investment Adviser determines to make securities loans,
the value of the securities loaned may not exceed 33 1/3% of the value of the
total assets of a Fund (including the loan collateral). A Fund may experience
a loss or delay in the recovery of its securities if the institution with
which it has engaged in a portfolio loan transaction breaches its agreement
with the Fund.
 
MORTGAGE DOLLAR ROLLS
 
  The Balanced Fund may enter into mortgage "dollar rolls" in which the Fund
sells securities for delivery in the current month and simultaneously
contracts with the same counterparty to repurchase substantially similar (same
type, coupon and maturity) but not identical securities on a specified future
date. During the roll period, the Fund loses the right to receive principal
and interest paid on the securities sold. However, the Fund would benefit to
the extent of any difference between the price received for the securities
sold and the lower forward price for the future purchase or fee income plus
the interest earned on the cash proceeds of the securities sold until the
settlement date for the forward purchase. Unless such benefits exceed the
income, capital appreciation and gain or loss due to mortgage prepayments that
would have been realized on the securities sold as part of the mortgage dollar
roll, the use of this technique will diminish the investment performance of
the Fund. The Fund will segregate cash or liquid assets in an amount equal to
the forward purchase price until the settlement date. Successful use of
mortgage dollar rolls depends upon the Investment Adviser's ability to predict
correctly interest rates and mortgage prepayments. There is no assurance that
mortgage dollar rolls can be successfully employed. For financial reporting
and tax purposes, the Fund treats mortgage dollar rolls as two separate
transactions: one involving the purchase of a security and a separate
transaction involving a sale. The Fund does not currently intend to enter into
mortgage dollar rolls that are accounted for as a financing.
 
SHORT SALES AGAINST-THE-BOX
 
  Each Fund (other than the CORE Funds) may make short sales of securities or
maintain a short position, provided that at all times when a short position is
open the Fund owns an equal amount of such securities or
 
                                      31
<PAGE>
 
securities convertible into or exchangeable for, without payment of any
further consideration, an equal amount of the securities of the same issuer as
the securities sold short (a short sale against-the-box). Not more than 25% of
a Fund's net assets (determined at the time of the short sale) may be subject
to such short sales. As a result of recent tax legislation, short sales may
not generally be used to defer the recognition of gain for tax purposes with
respect to appreciated securities in a Fund's portfolio.
 
TEMPORARY INVESTMENTS
 
  Each Fund may, for temporary defensive purposes, invest 100% of its total
assets (except that the CORE Funds may only hold up to 35% of their respective
total assets) in U.S. Government securities, repurchase agreements
collateralized by U.S. Government securities, commercial paper rated at least
A-2 by Standard & Poor's or P-2 by Moody's, certificates of deposit, bankers'
acceptances, repurchase agreements, non-convertible preferred stocks and non-
convertible corporate bonds with a remaining maturity of less than one year.
When a Fund's assets are invested in such instruments, the Fund may not be
achieving its investment objective.
 
MISCELLANEOUS TECHNIQUES
 
  In addition to the techniques and investments described above, each Fund
may, with respect to no more than 5% of its net assets, engage in the
following techniques and investments: (i) warrants and stock purchase rights;
(ii) currency swaps (Balanced Fund only); (iii) credit swaps, mortgage swaps,
index swaps and interest rate swaps, caps, floors and collars (Balanced Fund
only); (iv) yield curve options and inverse floating rate securities (Balanced
Fund only); (v) other investment companies including World Equity Benchmark
Shares; (vi) unseasoned companies; (vii) municipal securities (Balanced Fund
only); (viii) loan participations (Balanced Fund only); (ix) custodial
receipts; and (x) reverse repurchase agreements for investment purposes
(Balanced Fund only).
 
  In addition, each Fund may borrow up to 33 1/3% of its total assets from
banks for temporary or emergency purposes. A Fund may not make additional
investments if borrowings (excluding covered mortgage dollar rolls) exceed 5%
of its total assets. For more information see the Additional Statement.
 
 
                                 RISK FACTORS
 
  Risks of Investing in Equity Securities. In general, the Funds are subject
to the risks associated with investments in common stocks and other equity
securities. Stock values fluctuate in response to the activities of individual
companies and in response to general market and economic conditions and,
accordingly, the value of the stocks that a Fund holds may decline over short
or extended periods. The U.S. stock markets tend to be cyclical, with periods
when stock prices generally rise and periods when prices generally decline. As
of the date of this Prospectus, domestic stock markets were trading at or
close to record high levels and there can be no guarantee that such levels
will continue.
 
  RISKS OF INVESTING IN SMALL CAPITALIZATION COMPANIES. Investing in the
securities of such companies involves greater risk and the possibility of
greater portfolio price volatility. Historically, small market capitalization
stocks and stocks of recently organized companies have been more volatile in
price than the larger market capitalization stocks. Among the reasons for the
greater price volatility of these small company and
 
                                      32
<PAGE>
 
unseasoned stocks are the less certain growth prospects of smaller firms and
the lower degree of liquidity in the markets for such stocks.
 
  SPECIAL RISKS OF INVESTMENTS IN EMERGING MARKETS. Investing in the
securities of issuers in Emerging Countries involves risks in addition to
those discussed under "Description of Securities-- Foreign Investments." The
Growth and Income, Mid Cap Equity and Small Cap Value Funds may each invest up
to 25%, the Balanced Fund may invest up to 20% and the Capital Growth Fund may
invest up to 10% of their respective total assets in securities of issuers in
Emerging Countries. Emerging Countries are generally located in the Asia-
Pacific region, Eastern Europe, Latin and South America and Africa.
 
  Foreign investment in the securities markets of certain Emerging Countries
is restricted or controlled to varying degrees which may limit investment in
such countries or increase the administrative costs of such investments.
Certain countries may restrict or prohibit investment opportunities in issuers
or industries deemed important to national interests. Such restrictions may
affect the market price, liquidity and rights of securities that may be
purchased by a Fund. The repatriation of both investment income and capital
from certain Emerging Countries is subject to restrictions such as the need
for governmental consents. Many Emerging Countries may be subject to a greater
degree of economic, political and social instability than is the case in
Western Europe, the United States, Canada, Australia, New Zealand and Japan.
Many Emerging Countries do not have fully democratic governments. For example,
governments of some Emerging Countries are authoritarian in nature or have
been installed or removed as a result of military coups, while governments in
other Emerging Countries have periodically used force to suppress civil
dissent. Many Emerging Countries have experienced currency devaluations and
substantial and, in some cases, extremely high rates of inflation, which have
a negative effect on the economies and securities markets of such Emerging
Countries. Settlement procedures in Emerging Countries are frequently less
developed and reliable than those in the United States and may involve a
Fund's delivery of securities before receipt of payment for their sale. In
addition, significant delays are common in certain markets in registering the
transfer of securities. Settlement or registration problems may make it more
difficult for a Fund to value its portfolio securities and could cause the
Fund to miss attractive investment opportunities, to have a portion of its
assets uninvested or to incur losses due to the failure of a counterparty to
pay for securities the Fund has delivered or the Fund's inability to complete
its contractual obligations.
 
  RISKS OF INVESTING IN FIXED-INCOME SECURITIES. When interest rates decline,
the market value of fixed-income securities tends to increase. Conversely,
when interest rates increase, the market value of fixed-income securities
tends to decline. Volatility of a security's market value will differ
depending upon the security's duration, the issuer and the type of instrument.
Investments in fixed-income securities are subject to the risk that the issuer
could default on its obligations and a Fund could sustain losses on such
investments. A default could impact both interest and principal payments.
 
  RISKS OF DERIVATIVE TRANSACTIONS. A Fund's transactions, if any, in options,
futures, options on futures, swaps, structured securities and currency
transactions involve certain risks, including a possible lack of correlation
between changes in the value of hedging instruments and the portfolio assets
(if any) being hedged, the potential illiquidity of the markets for derivative
instruments, the risks arising from margin requirements and related leverage
factors associated with such transactions. The use of these management
techniques to seek to increase total return may be regarded as a speculative
practice and involves the risk of loss if the Investment Adviser is incorrect
in its expectation of fluctuations in securities prices, interest rates or
currency prices. A Fund's use of certain derivative transactions may be
limited by the requirements of the Internal Revenue Code of 1986, as amended
(the "Code"), for qualification as a regulated investment company.
 
 
                                      33
<PAGE>
 
 
                            INVESTMENT RESTRICTIONS
 
  Each Fund is subject to certain investment restrictions that are described
in detail under "Investment Restrictions" in the Additional Statement.
Fundamental investment restrictions of a Fund cannot be changed without
approval of a majority of the outstanding Shares of that Fund as defined in
the Additional Statement. Each Fund's investment objectives and all policies
not specifically designated as fundamental are non-fundamental and may be
changed without shareholder approval. If there is a change in a Fund's
investment objectives, shareholders should consider whether that Fund remains
an appropriate investment in light of their then current financial positions
and needs.
 
 
                              PORTFOLIO TURNOVER
 
  A high rate of portfolio turnover (100% or more) involves correspondingly
greater expenses which must be borne by a Fund and its shareholders. See
"Financial Highlights" for a statement of each Fund's historical portfolio
turnover rate (other than the CORE Large Cap Value Fund). It is anticipated
that the annual portfolio turnover rate of the CORE Large Cap Value Fund will
generally not exceed 75%. The portfolio turnover rate is calculated by
dividing the lesser of the dollar amount of sales or purchases of portfolio
securities by the average monthly value of a Fund's portfolio securities,
excluding securities having a maturity at the date of purchase of one year or
less. The Investment Adviser will not consider the portfolio turnover rate a
limiting factor in making investment decisions for a Fund consistent with the
Fund's investment objectives and portfolio management policies.
 
 
                                  MANAGEMENT
 
TRUSTEES AND OFFICERS
 
  The Trustees are responsible for deciding matters of general policy and
reviewing the actions of the Investment Adviser, Distributor and transfer
agent. The officers of the Trust conduct and supervise the Funds' daily
business operations. The Additional Statement contains information as to the
identity of, and other information about, the Trustees and officers of the
Trust.
 
INVESTMENT ADVISERS
 
  INVESTMENT ADVISERS. Goldman Sachs Asset Management, One New York Plaza, New
York, New York 10004, a separate operating division of Goldman Sachs, serves
as investment adviser to the Balanced, Growth and Income, CORE Large Cap
Value, CORE Large Cap Growth, CORE Small Cap Equity, Mid Cap Equity and Small
Cap Value Funds. Goldman Sachs registered as an investment adviser in 1981.
Goldman Sachs Funds Management, L.P., One New York Plaza, New York, New York
10004, a Delaware limited partnership which is an affiliate of Goldman Sachs,
serves as the investment adviser to the CORE U.S. Equity and Capital Growth
Funds. Goldman Sachs Funds Management, L.P. registered as an investment
adviser in 1990. As of November 20, 1998, GSAM and GSFM together with their
affiliates, acted as investment adviser or distributor for assets in excess of
$188 billion.
 
 
                                      34
<PAGE>
 
  Under a Management Agreement with each Fund, the applicable Investment
Adviser, subject to the general supervision of the Trustees, provides day-to-
day advice as to the Fund's portfolio transactions. Goldman Sachs has agreed
to permit the Funds to use the name "Goldman Sachs" or a derivative thereof as
part of each Fund's name for as long as a Fund's Management Agreement is in
effect.
 
  In performing its investment advisory services, each Investment Adviser,
while remaining ultimately responsible for the management of the Funds, is
able to draw upon the research and expertise of its asset management
affiliates for portfolio decisions and management with respect to certain
portfolio securities. In addition, the Investment Adviser will have access to
the research of, and certain proprietary technical models developed by,
Goldman Sachs and may apply quantitative and qualitative analysis in
determining the appropriate allocations among the categories of issuers and
types of securities.
 
  Under the Management Agreement, the Investment Adviser also: (i) supervises
all non-advisory operations of each Fund that it advises; (ii) provides
personnel to perform such executive, administrative and clerical services as
are reasonably necessary to provide effective administration of each Fund;
(iii) arranges for at each Fund's expense (a) the preparation of all required
tax returns, (b) the preparation and submission of reports to existing
shareholders, (c) the periodic updating of prospectuses and Additional
Statements and (d) the preparation of reports to be filed with the SEC and
other regulatory authorities; (iv) maintains each Fund's records; and (v)
provides office space and all necessary office equipment and services.
 
  M. Roch Hillenbrand, a Managing Director of Goldman, Sachs & Co., is the
Head of Global Equities for Goldman Sachs Asset Management, overseeing U.S.,
Europe, Japan, and non-Japan Asia. In this capacity, he is responsible for
managing the group as it defines and implements global portfolio management
processes that are consistent, reliable and predictable. Roch is also
President of Commodities Corporation LLC, of which Goldman, Sachs & Co. is the
parent company. Over the course of his 18-year career at Commodities
Corporation, Roch has had extensive experience in dealing with internal and
external investment managers who have managed a range of futures and equities
strategies across multiple markets, using a variety of styles.
 
 FUND MANAGERS
 
<TABLE>
<CAPTION>
                                                YEARS
                                                PRIMARILY
       NAME AND TITLE       FUND RESPONSIBILITY RESPONSIBLE     FIVE YEAR EMPLOYMENT HISTORY
  ------------------------- ------------------- ----------- ----------------------------
  <C>                       <C>                 <C>         <S>
  George D. Adler           Senior                 Since      Mr. Adler joined the
   Vice President           Portfolio Manager--    1997       Investment Adviser in
                            Capital Growth         1998       1997. From 1990 to 1997,
                            Balanced (Equity)                 he was a portfolio
                                                              manager at Liberty
                                                              Investment Management,
                                                              Inc. From 1988 to 1990
                                                              he was a director of
                                                              portfolio management at
                                                              Banc One in Ohio.
- --------------------------------------------------------------------------------------------
  Eileen A. Aptman          Senior Portfolio       Since      Ms. Aptman joined the
   Vice President           Manager--              1996       Investment Adviser in
                            Mid Cap Equity         1997       1993. From 1990 to 1993,
                            Small Cap Value                   she worked at Delphi
                                                              Management as an equity
                                                              analyst, focusing her
                                                              research efforts on
                                                              value stocks.
- --------------------------------------------------------------------------------------------
  Jonathan A. Beinner       Senior Portfolio       Since      Mr. Beinner joined the
   Managing Director and    Manager--Balanced      1994       Investment Adviser in
   Co-Head U.S. Fixed       (Fixed-Income)                    1990. From 1988 to 1990,
   Income                                                     he worked as a portfolio
                                                              manager at Franklin
                                                              Savings Association in
                                                              the trading and
                                                              arbitrage group.
- --------------------------------------------------------------------------------------------
  Melissa Brown             Senior Portfolio       Since      Ms. Brown joined the
   Vice President           Manager--              1998       Investment Adviser in
                            CORE Large Cap         1998       1998. From 1984 to 1998,
                            Value CORE U.S.        1998       she was the director of
                            Equity                 1998       Quantitative Equity
                            CORE Large Cap                    Research and served on
                            Growth                            the Investment Policy
                            CORE Small Cap                    Committee at Prudential
                            Equity                            Securities.
</TABLE>
 
                                      35
<PAGE>
 
<TABLE>
<CAPTION>
                                                        YEARS
                                                        PRIMARILY
      NAME AND TITLE        FUND RESPONSIBILITY         RESPONSIBLE     FIVE YEAR EMPLOYMENT HISTORY
  ---------------------- --------------------------     ----------- ----------------------------
  <C>                    <C>                            <C>         <S>
  Kent A. Clark             Senior Portfolio Manager--     Since     Mr. Clark joined the
   Managing Director        CORE Large Cap Value CORE      1998      Investment Adviser in
                            U.S. Equity                    1996      1992.
                            CORE Large Cap Growth          1997
                            CORE Small Cap Equity          1997
- ----------------------------------------------------------------------------------------------------
  Robert G. Collins         Senior Portfolio Manager--     Since     Mr. Collins joined the
   Vice President           Capital Growth                 1997      Investment Adviser in
                            Balanced (Equity)              1998      1997. From 1991 to 1997,
                                                                     he was a portfolio manager
                                                                     at Liberty Investment
                                                                     Management, Inc. His past
                                                                     experiences include work
                                                                     as a special situations
                                                                     analyst with Raymond James
                                                                     & Associates for five
                                                                     years.
- ----------------------------------------------------------------------------------------------------
  Herbert E. Ehlers         Senior Portfolio Manager--     Since     Mr. Ehlers joined the
   Managing Director        Capital Growth                 1997      Investment Adviser in
                            Balanced (Equity)              1998      1997. From 1994 to 1997,
                                                                     he was the Chief
                                                                     Investment Officer and
                                                                     Chairman of Liberty
                                                                     Investment Management,
                                                                     Inc. He was a portfolio
                                                                     manager and president at
                                                                     Liberty's predecessor
                                                                     firm, Eagle Asset
                                                                     Management, from 1984 to
                                                                     1994.
- ----------------------------------------------------------------------------------------------------
  Gregory H. Ekizian        Senior Portfolio Manager--     Since     Mr. Ekizian joined the
   Vice President           Capital Growth                 1997      Investment Adviser in
                            Balanced (Equity)              1998      1997. From 1990 to 1997,
                                                                     he was a portfolio manager
                                                                     at Liberty Investment
                                                                     Management, Inc. and its
                                                                     predecessor firm, Eagle
                                                                     Asset Management.
- ----------------------------------------------------------------------------------------------------
  Paul D. Farrell           Senior Portfolio Manager--     Since     Mr. Farrell joined the
   Managing Director        Mid Cap Equity                 1998      Investment Adviser in
                            Small Cap Value                1992      1991. In 1998, he became
                                                                     responsible for managing
                                                                     the Investment Adviser's
                                                                     Value team. During 1991,
                                                                     he served as a managing
                                                                     director at Plaza
                                                                     Investment Managers, the
                                                                     investment subsidiary of
                                                                     GEICO Corp., a major
                                                                     insurance company. From
                                                                     1986 to 1991, he was
                                                                     employed by Goldman Sachs
                                                                     as a vice president in the
                                                                     investment research
                                                                     department and was
                                                                     responsible for the
                                                                     formation of the firm's
                                                                     Emerging Growth Research
                                                                     Group.
- ----------------------------------------------------------------------------------------------------
  Greg Gigliotti            Senior Portfolio Manager--     Since     Mr. Gigliotti joined the
   Vice President           Growth and Income              1998      Investment Adviser in
                            Balanced (Equity)              1998      1997. From 1996 to 1997 he
                            Mid Cap Equity                 1998      was a Vice President and
                                                                     senior analyst at Franklin
                                                                     Mutual Advisors, Inc., the
                                                                     asset management division
                                                                     of Franklin Resources,
                                                                     Inc. From 1989 to 1996 he
                                                                     was a Vice President and
                                                                     senior analyst at Heine
                                                                     Securities Corporation
                                                                     which was purchased by
                                                                     Franklin Resources, Inc.
- ----------------------------------------------------------------------------------------------------
  Robert C. Jones            Senior Portfolio Manager--    Since     Mr. Jones joined the
   Managing Director         CORE Large Cap Value CORE     1998      Investment Adviser in
                             U.S. Equity                   1991      1989. From 1987 to 1989,
                             CORE Large Cap Growth         1997      he was the senior
                             CORE Small Cap Equity         1997      quantitative analyst in
                                                                     the Goldman Sachs
                                                                     Investment Research
                                                                     Department and the author
                                                                     of the monthly Stock
                                                                     Selection publication.
- ----------------------------------------------------------------------------------------------------
  Richard C. Lucy            Senior Portfolio Manager--    Since     Mr. Lucy joined the
   Managing Director and     Balanced (Fixed-Income)       1994      Investment Adviser in
   Co-Head U.S.                                                      1992. From 1983 to 1992,
   Fixed Income                                                      he managed fixed income
                                                                     assets at Brown Brothers
                                                                     Harriman & Co.
</TABLE>
 
                                       36
<PAGE>
 
 
<TABLE>
<CAPTION>
                                                        YEARS
                                                        PRIMARILY
      NAME AND TITLE        FUND RESPONSIBILITY         RESPONSIBLE     FIVE YEAR EMPLOYMENT HISTORY
  ---------------------- --------------------------     ----------- ----------------------------
  <C>                    <C>                            <C>         <S>
  Matthew B. McLennan        Senior Portfolio Manager--    Since      Mr. McLennan joined the
   Vice President            Mid Cap Equity                1998       Investment Adviser in
                             Small Cap Value               1996       1995. From 1994 to 1995,
                                                                      he worked in the
                                                                      Investment Banking
                                                                      Division of Goldman
                                                                      Sachs in Australia. From
                                                                      1991 to 1994, Mr.
                                                                      McLennan worked at
                                                                      Queensland Investment
                                                                      Corporation in
                                                                      Australia.
- ----------------------------------------------------------------------------------------------------
  Victor H. Pinter           Senior Portfolio Manager--    Since      Mr. Pinter joined the
   Vice President            CORE Large Cap Value CORE     1998       Investment Adviser in
                             U.S. Equity                   1996       1990. From 1985 to 1990,
                             CORE Large Cap Growth         1997       he was a project manager
                             CORE Small Cap Equity         1997       in the Information
                                                                      Technology Division of
                                                                      the Investment Adviser.
- ----------------------------------------------------------------------------------------------------
  Thomas S. Price            Senior Portfolio Manager--    Since      Mr. Price joined the
   Vice President            Growth and Income             1998       Investment Adviser in
                             Balanced (Equity)             1998       1997. From 1996 to 1997
                             Mid Cap Equity                1998       he was a Vice President
                                                                      and senior analyst at
                                                                      Franklin Mutual
                                                                      Advisors, Inc., the
                                                                      asset management
                                                                      division of Franklin
                                                                      Resources, Inc. From
                                                                      1993 to 1996 he was a
                                                                      Vice President and
                                                                      senior analyst at Heine
                                                                      Securities Corporation
                                                                      which was purchased by
                                                                      Franklin Resources, Inc.
- ----------------------------------------------------------------------------------------------------
  David G. Shell             Senior Portfolio Manager--    Since      Mr. Shell joined the
   Vice President            Capital Growth                1997       Investment Adviser in
                             Balanced (Equity)             1998       1997. From 1987 to 1997,
                                                                      he was a portfolio
                                                                      manager at Liberty
                                                                      Investment Management,
                                                                      Inc. and its predecessor
                                                                      firm, Eagle Asset
                                                                      Management.
- ----------------------------------------------------------------------------------------------------
  Ernest C. Segundo, Jr.     Senior Portfolio Manager--    Since      Mr. Segundo joined the
   Vice President            Capital Growth                1997       Investment Adviser in
                             Balanced (Equity)             1998       1997. From 1992 to 1997,
                                                                      he was a portfolio
                                                                      manager at Liberty
                                                                      Investment Management,
                                                                      Inc. From 1990 to 1992,
                                                                      he was an equity
                                                                      research analyst with
                                                                      Fidelity Management &
                                                                      Research Company.
- ----------------------------------------------------------------------------------------------------
  Lawrence S. Sibley         Senior Portfolio Manager--    Since      Mr. Sibley joined the
   Vice President            Growth and Income             1997       Investment Adviser in
                             Balanced (Equity)             1997       1997. From 1994 to 1997,
                             Mid Cap Equity                1997       he headed Institutional
                                                                      Equity Sales at J.P.
                                                                      Morgan Securities and
                                                                      from 1987 to 1994, he
                                                                      was a principal of
                                                                      Sanford C. Bernstein &
                                                                      Co. in its Institutional
                                                                      Sales Department.
- ----------------------------------------------------------------------------------------------------
  Karma Wilson              Senior Portfolio Manager--     Since      Ms. Wilson joined the
   Vice President           Growth and Income              1998       Investment Adviser in
                            Balanced (Equity)              1998       1994. Prior to 1994, she
                            Mid Cap Equity                 1998       was an investment
                                                                      analyst with Bankers
                                                                      Trust Australia Ltd.
                                                                      Before 1992 she was
                                                                      employed at Arthur
                                                                      Andersen LLP.
</TABLE>
 
  It is the responsibility of the Investment Adviser to make the investment
decisions for a Fund and to place the purchase and sale orders for the Fund's
portfolio transactions in U.S. and foreign markets. Such orders may be
directed to any broker including, to the extent and in the manner permitted by
applicable law, Goldman Sachs or its affiliates. In effecting purchases and
sales of portfolio securities for the Funds, the Investment Adviser will seek
the best price and execution of a Fund's orders. In doing so, where two or
more brokers or dealers offer comparable prices and execution for a particular
trade, consideration may be given to whether the broker or dealer provides
investment research or brokerage services or sells Shares of any Goldman Sachs
Fund. See the Additional Statement for a further description of the Investment
Adviser's brokerage allocation practices.
 
                                      37
<PAGE>
 
  As compensation for its services rendered and assumption of certain expenses
pursuant to separate Management Agreements, GSAM and GSFM are entitled to the
following fees, computed daily and payable monthly at the annual rates listed
below:
 
<TABLE>
<CAPTION>
                                                               FOR THE FISCAL
                                                CONTRACTUAL YEAR OR PERIOD ENDED
                                                   RATE*     JANUARY 31, 1998*
                                                ----------- --------------------
     <S>                                        <C>         <C>
     GSAM
     ----
     Balanced..................................    0.65%           0.65%
     Growth and Income.........................    0.70%           0.70%
     CORE Large Cap Value......................    0.60%             N/A
     CORE Large Cap Growth.....................    0.75%           0.60%
     CORE Small Cap Equity.....................    0.85%           0.75%
     Mid Cap Equity............................    0.75%           0.75%
     Small Cap Value...........................    1.00%           1.00%
     GSFM
     ----
     CORE U.S. Equity..........................    0.75%           0.59%
     Capital Growth............................    1.00%           1.00%
</TABLE>
 
- ---------------------
*All numbers are annualized. The difference, if any, between the stated fees
and the actual fees paid by the Funds reflects that the applicable Investment
Adviser did not charge the full amount of the fees to which it would have been
entitled. Effective September 1, 1998, the management fee for the CORE U.S.
Equity and CORE Small Cap Equity Funds will equal 0.70% and 0.85%,
respectively. As of January 31, 1998, the CORE Large Cap Value Fund had not
commenced operations. The Investment Adviser may discontinue or modify any
limitations in the future at its discretion.
 
  The Investment Adviser has voluntarily agreed to reduce or limit certain
"Other Expenses" of the Funds (excluding management fees, service fees,
transfer agency fees, taxes, interest and brokerage fees and litigation,
indemnification and other extraordinary expenses) to the extent such expenses
exceed 0.01%, 0.05%, 0.00%, 0.00%, 0.00%, 0.04%, 0.00%, 0.10% and 0.06% per
annum of the average daily net assets of the Balanced, Growth and Income, CORE
Large Cap Value, CORE U.S. Equity, CORE Large Cap Growth, CORE Small Cap
Equity, Capital Growth, Mid Cap Equity and Small Cap Value Funds,
respectively. Such reductions or limits, if any, may be discontinued or
modified by the applicable Investment Adviser in its discretion at any time.
 
  ACTIVITIES OF GOLDMAN SACHS AND ITS AFFILIATES AND OTHER ACCOUNTS MANAGED BY
GOLDMAN SACHS. The involvement of the Investment Adviser, Goldman Sachs and
their affiliates in the management of, or their interest in, other accounts
and other activities of Goldman Sachs may present conflicts of interest with
respect to a Fund or limit a Fund's investment activities. Goldman Sachs and
its affiliates engage in proprietary trading and advise accounts and funds
which have investment objectives similar to those of the Funds and/or which
engage in and compete for transactions in the same type of securities,
currencies and instruments as the Funds. Goldman Sachs and its affiliates will
not have any obligation to make available any information regarding their
proprietary activities or strategies, or the activities or strategies used for
other accounts managed by them, for the benefit of the management of the
Funds. The results of a Fund's investment activities, therefore, may differ
from those of Goldman Sachs and its affiliates and it is possible that a Fund
could sustain losses during periods in which Goldman Sachs and its affiliates
and other accounts achieve significant profits on their trading for
proprietary or other accounts. In addition, the Funds may, from time to time,
enter into transactions in which other clients of
 
                                      38
<PAGE>
 
Goldman Sachs have an adverse interest. From time to time, a Fund's activities
may be limited because of regulatory restrictions applicable to Goldman Sachs
and its affiliates, and/or their internal policies designed to comply with
such restrictions. See "Management--Activities of Goldman Sachs and its
Affiliates and Other Accounts Managed by Goldman Sachs" in the Additional
Statement for further information.
 
DISTRIBUTOR AND TRANSFER AGENT
 
  Goldman Sachs, 85 Broad Street, New York, New York 10004, serves as the
exclusive distributor (the "Distributor") of each Fund's Shares. Goldman
Sachs, 4900 Sears Tower, Chicago, Illinois 60606, also serves as each Fund's
transfer agent (the "Transfer Agent") and as such performs various shareholder
servicing functions. Shareholders with inquiries regarding a Fund should
contact Goldman Sachs (as Transfer Agent) at the address or the telephone
number set forth on the back cover page of this Prospectus. Goldman Sachs is
entitled to receive a transfer agency fee with respect to each Fund's
Institutional and Service Shares equal, on an annual basis, to 0.04% of
average daily net assets.
 
  From time to time, Goldman Sachs or any of its affiliates may purchase and
hold Shares of the Funds. Goldman Sachs reserves the right to redeem at any
time some or all of the Shares acquired for its own account.
 
YEAR 2000
 
  Many computer systems were designed using only two digits to signify the
year (for example, "98" for "1998"). On January 1, 2000, if these computer
systems are not corrected, they may incorrectly interpret "00" as the year
"1900" rather than the year "2000," leading to computer shutdowns or errors
(commonly known as the "Year 2000 Problem"). To the extent these systems
conduct forward-looking calculations, these computer problems may occur prior
to January 1, 2000. Like other investment companies and financial and business
organizations, the Funds could be adversely affected in their ability to
process securities trades, price securities, provide shareholder account
services and otherwise conduct normal business operations if the Investment
Adviser or other Fund service providers do not adequately address this problem
in a timely manner. The Investment Adviser has established a dedicated group
to analyze these issues and to implement the systems modifications necessary
to prepare for the Year 2000 Problem. Currently, the Investment Adviser does
not anticipate that the transition to the 21st Century will have any material
impact on its ability to continue to service the Funds at current levels. In
addition, the Investment Adviser has sought assurances from the Funds' other
service providers that they are taking the steps necessary so that they do not
experience Year 2000 Problems, and the Investment Adviser will continue to
monitor the situation. At this time, however, no assurance can be given that
the actions taken by the Investment Adviser and the Funds' other service
providers will be sufficient to avoid any adverse effect on the Funds due to
the Year 2000 Problem.
 
 
                                   EXPENSES
 
  The Funds are responsible for the payment of their expenses. The expenses
include, without limitation; fees payable to the Investment Adviser; custodial
and transfer agency fees; service fees paid to Service Organizations;
brokerage fees and commissions; filing fees for the registration or
qualification of the Funds' Shares under federal or state securities laws,
organizational expenses; fees and expenses incurred in connection with
membership in investment company organizations; taxes; interest; costs of
liability insurance, fidelity bonds or indemnification; any costs, expenses or
losses arising out of any liability of, or claim for damages or other relief
 
                                      39
<PAGE>
 
asserted against, the Funds for violation of any law; legal and auditing fees
and expenses (including the cost of legal and certain accounting services
rendered by employees of the Investment Adviser and its affiliates with
respect to the Funds); expenses of preparing and setting in type prospectuses,
Additional Statements, proxy material, financial reports and notices and the
printing and distributing of the same to shareholders and regulatory
authorities; compensation and expenses of the Trust's "non-interested"
Trustees; and extraordinary organizational expenses, if any, incurred by the
Trust.
 
 
                                NET ASSET VALUE
 
  The NAV per Share of each Class of a Fund is calculated by the Fund's
custodian as of the close of regular trading on the New York Stock Exchange
(which is normally, but not always, 3:00 p.m. Chicago time, 4:00 p.m. New York
time), on each Business Day (as such term is defined under "Additional
Information"). NAV per Share of each Class is calculated by determining the
net assets attributed to each Class and dividing by the number of outstanding
Shares of that Class. Portfolio securities are valued based on market
quotations or, if accurate quotations are not readily available, at fair value
as determined in good faith under procedures established by the Trustees.
 
 
                            PERFORMANCE INFORMATION
 
  From time to time each Fund may publish average annual total return and the
Balanced, CORE Large Cap Value and Growth and Income Funds may publish their
yield and distribution rates in advertisements and communications to
shareholders or prospective investors. Average annual total return is
determined by computing the average annual percentage change in value of
$1,000 invested at the maximum public offering price for specified periods
ending with the most recent calendar quarter, assuming reinvestment of all
dividends and distributions at NAV. The total return calculation assumes a
complete redemption of the investment at the end of the relevant period. Each
Fund may also from time to time advertise total return on a cumulative,
average, year-by-year or other basis for various specified periods by means of
quotations, charts, graphs or schedules. In addition, each Fund may furnish
total return calculations based on investments at various sales charge levels
or at NAV. Any performance information which is based on the NAV per Share
would be reduced if any applicable sales charge were taken into account. In
addition to the above, each Fund may from time to time advertise its
performance relative to certain averages, performance rankings, indices, other
information prepared by recognized mutual fund statistical services and
investments for which reliable performance information is available.
 
  The Balanced, CORE Large Cap Value and Growth and Income Funds compute their
yield by dividing net investment income earned during a recent thirty-day
period by the product of the average daily number of Shares outstanding and
entitled to receive dividends during the period and the maximum offering price
per Share on the last day of the relevant period. The results are compounded
on a bond equivalent (semi-annual) basis and then annualized. Net investment
income per Share is equal to the dividends and interest earned during the
period, reduced by accrued expenses for the period. The calculation of net
investment income for these purposes may differ from the net investment income
determined for accounting purposes. The Balanced, CORE Large Cap Value and
Growth and Income Funds' quotations of distribution rate are calculated by
annualizing the most
 
                                      40
<PAGE>
 
recent distribution of net investment income for a monthly, quarterly or other
relevant period and dividing this amount by the NAV per Share on the last day
of the period for which the distribution rate is being calculated.
 
  Each Fund's total return, yield and distribution rate will be calculated
separately for each Class of Shares in existence. Because each Class of Shares
may be subject to different expenses, the total return, yield and distribution
rate calculations with respect to each Class of Shares for the same period
will differ. See "Shares of the Trust."
 
  The Funds' performance quotations do not reflect any fees charged by a
Service Organization to its customer accounts in connection with investments
in the Funds. The investment results of a Fund will fluctuate over time and
any presentation of investment results for any prior period should not be
considered a representation of what an investment may earn or what the Fund's
performance may be in any future period. In addition to information provided
in shareholder reports, the Funds may, in their discretion, from time to time
make a list of their holdings available to investors upon request.
 
 
                              SHARES OF THE TRUST
 
  Goldman Sachs Trust was formed under the laws of the State of Delaware on
January 28, 1997. On April 30, 1997, Goldman Sachs Equity Portfolios, Inc., a
Maryland corporation was reorganized into the Trust. The Trustees have
authority under the Trust's Declaration of Trust to create and classify Shares
of beneficial interests in separate series, without further action by
shareholders. Additional series may be added in the future. The Trustees also
have authority to classify and reclassify any series or portfolio of Shares
into one or more Classes. Information about the Trust's other series and
Classes is contained in separate prospectuses.
 
  When issued, Shares are fully paid and non-assessable. In the event of
liquidation, shareholders of each class are entitled to share pro rata in the
net assets of the applicable Fund available for distribution to the
shareholders of such Class. All Shares are freely transferable and have no
preemptive, subscription or conversion rights. Shareholders are entitled to
one vote per Share, provided that, at the option of the Trustees, shareholders
will be entitled to a number of votes based upon the NAVs represented by their
Shares.
 
  The Trust does not intend to hold annual meetings of shareholders. However,
recordholders may, under certain circumstances, as permitted by the Act,
communicate with other shareholders in connection with requiring a special
meeting of shareholders. The Trustees will call a special meeting of
shareholders for the purpose of electing Trustees if, at any time, less than a
majority of Trustees holding office at the time were elected by shareholders.
 
  In the interest of economy and convenience, the Trust does not issue
certificates representing the Funds' Shares. Instead, the Transfer Agent
maintains a record of each shareholder's ownership. Each shareholder receives
confirmation of purchase and redemption orders from the Transfer Agent. Fund
Shares and any dividends and distributions paid by the Fund are reflected in
account statements from the Transfer Agent.
 
                                      41
<PAGE>
 
 
                                   TAXATION
 
FEDERAL TAXES
 
  Each Fund is treated as a separate entity for tax purposes. The CORE Large
Cap Value Fund intends to elect and each other Fund has elected to be treated
as a regulated investment company, and each Fund intends to continue to
qualify for such treatment for each taxable year under Subchapter M of the
Code. To qualify as such, a Fund must satisfy certain requirements relating to
the sources of its income, diversification of its assets and distribution of
its income to shareholders. As a regulated investment company, a Fund will not
be subject to federal income or excise tax on any net investment income and
net realized capital gains that are distributed to its shareholders in
accordance with certain timing requirements of the Code.
 
  Dividends paid by a Fund from net investment income, certain net realized
foreign exchange gains, the excess of net short-term capital gain over net
long-term capital loss and original issue discount or market discount income
will be taxable to its shareholders as ordinary income. Distributions out of
the net capital gain (the excess of net long-term capital gain over net short-
term capital loss), if any, of a Fund will be taxed to shareholders as long-
term capital gains, regardless of the length of time a shareholder has held
his or her Shares or whether such gain was reflected in the price paid for the
Shares. These tax consequences will apply whether distributions are received
in cash or reinvested in Shares. A Fund's dividends that are paid to its
corporate shareholders and are attributable to qualifying dividends such Fund
receives from U.S. domestic corporations may be eligible, in the hands of such
corporate shareholders, for the corporate dividends-received deduction,
subject to certain holding period requirements and debt financing limitations
under the Code. Certain distributions paid by a Fund in January of a given
year may be taxable to shareholders as if received the prior December 31.
Shareholders will be informed annually about the amount and character of
distributions received from the Funds for federal income tax purposes.
 
  Investors should consider the tax implications of buying Shares immediately
prior to a distribution. Investors who purchase Shares shortly before the
record date for a distribution will pay a per Share price that includes the
value of the anticipated distribution and will be taxed on the distribution
even though the distribution represents a return of a portion of the purchase
price.
 
  Redemptions and exchanges of Shares are taxable events.
 
  Individuals and certain other classes of shareholders may be subject to 31%
backup withholding of federal income tax on distributions, redemptions and
exchanges if they fail to furnish their correct taxpayer identification number
and certain certifications required by the Internal Revenue Service or if they
are otherwise subject to backup withholding. Individuals, corporations and
other shareholders that are not U.S. persons under the Code are subject to
different tax rules and may be subject to nonresident alien withholding at the
rate of 30% (or a lower rate provided by an applicable tax treaty, if any) on
amounts treated as ordinary dividends from the Funds.
 
  Each Fund may be subject to foreign withholding or other foreign taxes on
income or gain from certain foreign securities. In general, the Funds do not
anticipate that they will be eligible to pass any foreign tax credits through
to their shareholders; however, the Funds may deduct these taxes in computing
their taxable income, if any.
 
                                      42
<PAGE>
 
OTHER TAXES
 
  In addition to federal taxes, a shareholder may be subject to state, local
or foreign taxes on payments received from the Funds. A state income (and
possibly local income and/or intangible property) tax exemption may be
available to the extent (if any) a Fund's distributions are derived from
interest on (or, in the case of intangible property taxes, the value of its
assets is attributable to) certain U.S. Government obligations, provided in
some states that certain thresholds for holdings of such obligations and/or
reporting requirements are satisfied. For a further discussion of certain tax
consequences of investing in Shares of the Funds, see "Taxation" in the
Additional Statement. Shareholders are urged to consult their own tax advisers
regarding specific questions as to federal, state and local taxes as well as
to any foreign taxes.
 
 
                            ADDITIONAL INFORMATION
 
  As used in this Prospectus, the term "Business Day" means any day the New
York Stock Exchange is open for trading, which is Monday through Friday except
for holidays. The New York Stock Exchange is closed on the following holidays:
New Year's Day, Martin Luther King, Jr. Day, Presidents' Day (observed), Good
Friday, Memorial Day (observed), Independence Day, Labor Day, Thanksgiving Day
and Christmas Day.
 
                                      43
<PAGE>
 
 
                            REPORTS TO SHAREHOLDERS
 
 
  Recordholders of Institutional Shares of the Funds will receive an annual
report containing audited financial statements and a semi-annual report. To
eliminate unnecessary duplication, only one copy of such reports may be sent to
recordholders with the same mailing address. Recordholders who desire a
duplicate copy of such reports to be mailed to their residence should contact
Goldman Sachs at 800-621-2550. Each recordholder of Institutional Shares will
also be provided with a printed confirmation for each transaction in its
account and a quarterly account statement. A year-to-date statement for any
account will be provided upon request made to Goldman Sachs. The Funds do not
generally provide subaccounting services with respect to beneficial ownership
of Institutional Shares.
 
 
                                   DIVIDENDS
 
 
  Each dividend from net investment income and capital gain distributions, if
any, declared by a Fund on its outstanding Institutional Shares will, at the
election of each shareholder, be paid: (i) in cash; or (ii) in additional
Institutional Shares of such Fund. This election should initially be made on a
shareholder's Account Information Form and may be changed upon written notice
to Goldman Sachs at any time prior to the record date for a particular dividend
or distribution. If no election is made, all dividends from net investment
income and capital gain distributions will be reinvested in Institutional
Shares of the applicable Fund.
 
  The election to reinvest dividends and distributions paid by a Fund in
additional Institutional Shares of the Fund will not affect the tax treatment
of such dividends and distributions, which will be treated as received by the
shareholder and then used to purchase Institutional Shares of a Fund.
 
  Each Fund intends that all or substantially all its net investment income and
net capital gains, after reduction by available capital losses, including any
capital losses carried forward from prior years, will be declared as dividends
for each taxable year. The Balanced, CORE Large Cap Value and Growth and Income
Funds will pay dividends from net investment income quarterly. Each other Fund
will pay dividends from net investment income, and dividends from net realized
capital gains, reduced by available capital losses, at least annually. From
time to time, a portion of a Fund's dividends may constitute a return of
capital.
 
  At the time of an investor's purchase of Shares of a Fund, a portion of the
NAV per Share may be represented by undistributed income of the Fund or
realized or unrealized appreciation of the Fund's portfolio securities.
Therefore, subsequent distributions on such Shares from such income or realized
appreciation may be taxable to the investor even if the NAV of the investor's
Shares is, as a result of the distributions, reduced below the cost of such
Shares and the distributions (or portions thereof) represent a return of a
portion of the purchase price.
 
 
                        PURCHASE OF INSTITUTIONAL SHARES
 
 
  Institutional Shares may be purchased on any Business Day at the NAV per
Share next determined after receipt of an order. No sales load will be charged.
Currently, the NAV is determined as of the close of regular trading on the New
York Stock Exchange (which is normally, but not always, 3:00 p.m. Chicago time,
4:00 p.m. New York time), as described under "Net Asset Value." Purchases of
Institutional Shares of the Funds must be
 
                                       44
<PAGE>
 
settled within three (3) Business Days of the receipt of a complete purchase
order. Payment of the proceeds of redemption of Shares purchased by check may
be delayed for a period of time as described under "Redemption of Institutional
Shares."
 
  Prior to making an initial investment in a Fund, an investor must open an
account with a Fund by furnishing necessary information to the Fund or Goldman
Sachs. An Account Information Form, a copy of which is attached to this
Prospectus, should be used to open such an account. Subsequent purchases may be
made in the manner set forth below.
 
PURCHASE PROCEDURES
 
  Purchases of Institutional Shares may be made by qualified investors by
placing an order with Goldman Sachs at 800-621-2550 and either wiring federal
funds to State Street Bank and Trust Company ("State Street") or initiating an
ACH transfer. Purchases may also be made by check (except that the Trust will
not accept a check drawn on a foreign bank or a third party check) or Federal
Reserve draft made payable to "Goldman Sachs Domestic Equity Funds--Name of
Fund and Class of Shares" and should be directed to "Goldman Sachs Domestic
Equity Funds--Name of Fund and Class of Shares," c/o National Financial Data
Services, Inc. ("NFDS"), P.O. Box 419711, Kansas City, MO 64141-6711.
 
MINIMUM INITIAL INVESTMENTS
 
  Institutional Shares of the Fund are offered to: (a) banks, trust companies
or other types of depository institutions investing for their own account or on
behalf of their clients; (b) pension and profit sharing plans, pension funds
and other company-sponsored benefit plans; (c) any state, county, city or any
instrumentality, department, authority or agency thereof; (d) corporations and
other for-profit business organizations with assets of at least $100 million or
publicly traded securities outstanding; (e) "wrap" accounts for the benefit of
clients of broker-dealers, financial institutions or financial planners,
provided that they have entered into an agreement with GSAM specifying
aggregate minimums and certain operating policies and standards; and (f)
registered investment advisers investing for accounts for which they receive
asset-based fees. With respect to these investors, the minimum initial
investment is $1,000,000 in Institutional Shares of a Fund alone or in
combination with other assets under the management of GSAM and its affiliates.
 
  The minimum initial investment in Institutional Shares for (a) individual
investors; (b) qualified non-profit organizations, charitable trusts,
foundations and endowments; and (c) accounts over which GSAM or its advisory
affiliates have investment discretion is $10,000,000.
 
  The foregoing minimum investment requirements may be waived at the discretion
of the Trust's officers. In addition, the minimum investment requirement may be
waived for current and former officers, partners, directors or employees of
Goldman Sachs or any of its affiliates or for other investors at the discretion
of the Trust's officers. No minimum amount is required for subsequent
investments.
 
OTHER PURCHASE INFORMATION
 
  The Trust may authorize certain institutions (including banks, trust
companies, brokers and investment advisers) that provide recordkeeping,
reporting and processing services to their customers to accept on the Trust's
 
                                       45
<PAGE>
 
behalf purchase, redemption and exchange orders placed by or on behalf of such
customers and, if approved by the Trust, to designate other intermediaries to
accept such orders. In these cases, a Fund will be deemed to have received an
order in proper form by or on behalf of a customer when the order is accepted
by the authorized institution or intermediary on a Business Day, and the order
will be priced at a Fund's NAV per Share next determined after such acceptance.
The institution or intermediary will be responsible for transmitting accepted
orders to the Trust within the period agreed upon by them. A customer should
contact an institution to learn whether it is authorized to accept orders for
the Trust. Such institutions may receive payments from the Funds or Goldman
Sachs for the services provided by them with respect to the Funds'
Institutional Shares. These payments may be in addition to other servicing
and/or sub-transfer agency payments borne by the Funds and their Share Classes.
 
  The Investment Adviser, Distributor, and/or their affiliates also pay
additional compensation, from time to time, out of their assets and not as an
additional charge to the Funds, to selected institutions (including banks,
trust companies, brokers and investment advisers) and other persons in
connection with the sale and/or servicing of Shares of the Funds and other
investment portfolios of the Trust (such as additional payments based on new
sales, amounts exceeding pre-established thresholds, or the length of time
clients' assets have remained in the Trust), and subject to applicable NASD
regulations, contribute to various non-cash and cash incentive arrangements to
promote the sale of Shares, as well as sponsor various educational programs,
sales contests and/or promotions in which participants may receive
reimbursement of expenses, entertainment and prizes such as travel awards,
merchandise, cash, investment research and educational information and related
support materials. This additional compensation may vary among institutions
depending upon such factors as the amounts their clients have invested (or may
invest) in particular portfolios of the Trust, the particular program involved,
or the amount of reimbursable expenses. Additional compensation based on sales
may, but is currently not expected to, exceed 0.50% (annualized) of the amount
invested. For further information, see the Additional Statement.
 
  The Funds reserve the right to redeem the Institutional Shares of any
shareholder of record whose account balance is less than $50 as a result of
earlier redemptions. Such redemptions will not be implemented if the value of a
recordholder's account falls below the minimum account balance solely as a
result of market conditions. The Trust will give 60 days' prior written notice
to recordholders whose Institutional Shares are being redeemed to allow them to
purchase sufficient additional Institutional Shares of a Fund to avoid such
redemption.
 
  The Funds and Goldman Sachs each reserve the right to reject any specific
purchase order (including exchanges) or to restrict purchases or exchanges by a
particular purchaser (or group of related purchasers). This may occur, for
example, when a purchaser or group of purchasers' pattern of frequent
purchases, sales or exchanges of Institutional Shares of a Fund is evident, or
if purchases, sales or exchanges are, or a subsequent abrupt redemption might
be, of a size that would disrupt management of a Fund.
 
  In the sole discretion of Goldman Sachs, a Fund may accept securities instead
of cash for the purchase of Shares of the Fund. Such purchases will be
permitted only if the Investment Adviser determines that any securities
acquired in this manner are consistent with the Fund's investment objectives,
restrictions and policies and are desirable investments for the Fund.
 
 
                                       46
<PAGE>
 
 
                               EXCHANGE PRIVILEGE
 
 
  Institutional Shares of the Fund may be exchanged for: (i) Institutional
Shares of any other mutual fund sponsored by Goldman Sachs and designated as an
eligible fund for this purpose; and (ii) the corresponding class of any Goldman
Sachs Money Market Fund at the NAV next determined either by writing to Goldman
Sachs, Attention: Goldman Sachs Domestic Equity Funds--Name of Fund and Class
of Shares, c/o GSAM Shareholder Services, 4900 Sears Tower, Chicago, Illinois
60606 or, if previously elected in the Fund's Account Information Form, by
telephone at 800-621-2550 (7:00 a.m. to 5:30 p.m. Chicago time). A shareholder
should obtain and read the prospectus relating to any other fund and its Shares
and consider its investment objective, policies and applicable fees before
making an exchange. Under the telephone exchange privilege, Institutional
Shares may be exchanged among accounts with different names, addresses and
social security or other taxpayer identification numbers only if the exchange
request is in writing and is received in accordance with the procedures set
forth under "Redemption of Institutional Shares."
 
  In an effort to prevent unauthorized or fraudulent exchanges by telephone,
Goldman Sachs employs reasonable procedures as set forth under "Redemption of
Institutional Shares" to confirm that such instructions are genuine. In times
of drastic economic or market changes the telephone exchange privilege may be
difficult to implement. For federal income tax purposes, an exchange is treated
as a sale of the Institutional Shares surrendered in the exchange on which an
investor may realize a gain or loss, followed by a purchase of Institutional
Shares, or the corresponding class of any Goldman Sachs Money Market Fund
received in the exchange. Shareholders should consult their own tax adviser
concerning the tax consequences of an exchange.
 
  Each exchange which represents an initial investment in a Fund must satisfy
the minimum investment requirements of the Fund into which the Institutional
Shares are being exchanged, except that this requirement may be waived at the
discretion of the officers of the Fund. Exchanges are available only in states
where exchanges may legally be made. The exchange privilege may be materially
modified or withdrawn at any time on 60 days' written notice to holders of
Institutional Shares and is subject to certain limitations. See "Purchase of
Institutional Shares."
 
 
                       REDEMPTION OF INSTITUTIONAL SHARES
 
 
  The Funds will redeem Institutional Shares upon request of a recordholder of
such Shares on any Business Day at the NAV next determined after receipt of a
request in proper form by Goldman Sachs from the recordholder. (See "Purchase
of Institutional Shares--Other Purchase Information" for a description of
limited situations where an institution or other intermediary may be authorized
to accept requests for the Funds.) If Institutional Shares to be redeemed were
recently purchased by check, a Fund may delay transmittal of redemption
proceeds until such time as it has assured itself that good funds have been
collected for the purchase of such Institutional Shares. This may take up to 15
days. Redemption requests may be made by a shareholder of record by writing to
or calling the Transfer Agent at the address or telephone number set forth on
the back cover of this Prospectus. A shareholder of record may request
redemptions by telephone if the optional telephone redemption privilege is
elected on the Account Information Form accompanying this Prospectus. It may be
difficult to implement redemptions by telephone in times of drastic economic or
market changes.
 
                                       47
<PAGE>
 
  In an effort to prevent unauthorized or fraudulent redemption or exchange
requests by telephone, Goldman Sachs employs reasonable procedures specified by
the Trust to confirm that such instructions are genuine. Among other things,
any redemption request that requires money to go to an account or address other
than that designated on the Account Information Form must be in writing and
signed by an authorized person designated on the Account Information Form. Any
such written request is also confirmed by telephone with both the requesting
party and the designated bank account to verify instructions. Exchanges among
accounts with different names, addresses and social security or other taxpayer
identification numbers must be in writing and signed by an authorized person
designated on the Account Information Form. Other procedures may be implemented
from time to time concerning telephone redemptions and exchanges. If reasonable
procedures are not implemented, the Trust may be liable for any loss due to
unauthorized or fraudulent transactions. In all other cases, neither the Funds,
the Trust nor Goldman Sachs will be responsible for the authenticity of
redemption or exchange instructions received by telephone.
 
  Written requests for redemptions must be signed by each recordholder whose
signature has been guaranteed by a bank, a securities broker or dealer, a
credit union having authority to issue signature guarantees, a savings and loan
association, a building and loan association, a cooperative bank, a federal
savings bank or association, a national securities exchange, a registered
securities association or a clearing agency, provided that such institution
satisfies the standards established by the Transfer Agent.
 
  The Funds will arrange for the proceeds of redemptions effected by any means
to be wired as federal funds to the bank account designated in the
recordholder's Account Information Form or, if the recordholder elects in
writing, by check. Redemption proceeds paid by wire transfer will normally be
wired on the next Business Day in federal funds (for a total one-day delay),
but may be paid up to three Business Days after receipt of a properly executed
redemption request. Wiring of redemption proceeds may be delayed one additional
Business Day if the Federal Reserve Bank is closed on the day redemption
proceeds would originally be wired. Redemption proceeds paid by check will
normally be mailed to the address of record within three Business Days of
receipt of a properly executed redemption request. In order to change the bank
designated on the Account Information Form to receive redemption proceeds, a
written request must be received by the Transfer Agent. This request must be
signature guaranteed as set forth above. Further documentation may be required
for executors, trustees or corporations. Once wire transfer instructions have
been given by Goldman Sachs, neither the Funds, the Trust nor Goldman Sachs
assumes any further responsibility for the performance of intermediaries or the
recordholder's bank in the transfer process. If a problem with such performance
arises, the recordholder should deal directly with such intermediaries or bank.
 
  Additional documentation regarding a redemption by any means may be required
to effect a redemption when deemed appropriate by Goldman Sachs. The request
for such redemption will not be considered to have been received in proper form
until such additional documentation has been received.
 
  Institutions (including banks, trust companies, brokers and investment
advisers) are responsible for the timely transmittal of redemption requests by
their customers to the Transfer Agent. In order to facilitate the timely
transmittal of redemption requests, these institutions have established times
by which redemption requests must be received by them. Additional documentation
may be required when deemed appropriate by an institution.
 
                              --------------------
 
                                       48
<PAGE>
 
 
                                 APPENDIX A
 
 
 
   GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION NUMBER ON ACCOUNT
                               INFORMATION FORM
 
  You are required by law to provide a Fund with your correct Taxpayer
Identification Number (TIN), regardless of whether you file tax returns.
Failure to do so may subject you to penalties. Failure to provide your correct
TIN and to sign your name in the Certification section of the Account
Information Form could result in withholding of 31% by a Fund for the federal
backup withholding tax on distributions, redemptions, exchanges and other
payments relating to your account.
 
  Any tax withheld may be credited against taxes owed on your federal income
tax return.
 
  If you do not have a TIN, you should apply for one immediately by contacting
your local office of the Social Security Administration or the Internal
Revenue Service (IRS). Backup withholding could also apply to payments
relating to your account prior to a Fund's receipt of your TIN.
 
  Special rules apply for certain entities. For example, for an account
established under a Uniform Gifts or Transfers to Minors Act, the TIN of the
minor should be furnished.
 
  If you have been notified by the IRS that you are subject to backup
withholding because you failed to report all your interest and/or dividend
income on your tax return and you have not been notified by the IRS that such
withholding should cease, you must cross out item (2) in the Certification
section of the Account Information Form.
 
  If you are an exempt recipient, you should furnish your TIN and certify your
exemption by signing the Certification section and writing "exempt" after your
signature. Exempt recipients include: corporations, tax-exempt pension plans
and IRAs, governmental agencies, financial institutions, registered securities
and commodities dealers and others.
 
  If you are a nonresident alien or foreign entity, you must provide a
completed Form W-8 to a Fund in order to avoid backup withholding on certain
payments. Other payments to you may be subject to nonresident alien
withholding of up to 30%.
 
  For further information regarding backup and nonresident alien withholding,
see Sections 3406, 1441 and 1442 of the Code and consult your tax adviser.
 
                                      A-1
<PAGE>
 
- --------------------------------------------------------------------------------
 
GOLDMAN SACHS ASSET
MANAGEMENT
ONE NEW YORK PLAZA
NEW YORK, NEW YORK 10004
 
GOLDMAN SACHS FUNDS
MANAGEMENT, L.P.
ONE NEW YORK PLAZA
NEW YORK, NEW YORK 10004
 
GOLDMAN, SACHS & CO.
DISTRIBUTOR
85 BROAD STREET
NEW YORK, NEW YORK 10004
 
GOLDMAN, SACHS & CO.
TRANSFER AGENT
4900 SEARS TOWER
CHICAGO, ILLINOIS 60606
 
STATE STREET BANK AND TRUST COMPANY
CUSTODIAN
1776 HERITAGE DRIVE
NORTH QUINCY, MASSACHUSETTS 02171
 
ARTHUR ANDERSEN, LLP
INDEPENDENT PUBLIC ACCOUNTANTS
225 FRANKLIN STREET
BOSTON, MASSACHUSETTS 02110
 
TOLL FREE (IN U.S.) . . . . . . . . 800-621-2550
 
EQDOMPROINST
501417
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
GOLDMAN SACHS DOMESTIC
EQUITY FUNDS
 
- --------------------------------------------------------------------------------
 
PROSPECTUS
 
INSTITUTIONAL SHARES
 
 
 
Goldman
Sachs
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
 
                              GOLDMAN SACHS TRUST
 
                      GOLDMAN SACHS DOMESTIC EQUITY FUNDS
 
                                Service Shares
 
                             ---------------------
 
                     Supplement dated January 20, 1999 to
                  Prospectus originally dated January 8, 1999
                      and hereby redated January 20, 1999
 
                    Goldman Sachs CORE Large Cap Value Fund
   Prior Performance of Similarly Advised Accounts of the Investment Adviser
 
 
<TABLE>
<CAPTION>
                                                         CORE Large Russell 1000
                                                         Cap Value     Value
                                                         Composite     Index
                                                         ---------- ------------
<S>                                                      <C>        <C>
1998....................................................      %           %
1997....................................................      %           %
1996....................................................      %           %
1995....................................................      %           %
1994....................................................      %           %
1993....................................................      %           %
8/1/92-12/31/92.........................................      %           %
</TABLE>
 
<TABLE>
<CAPTION>
                                                    Average Annual
                                                     Total Return
                                      ------------------------------------------
                                       One Year   3 Years    5 Years     Since
                                        ended      ended      ended    Inception
                                      12/31/1998 12/31/1998 12/31/1998 (8/1/92)
                                      ---------- ---------- ---------- ---------
<S>                                   <C>        <C>        <C>        <C>
CORE Large Cap Value Composite.......      %          %          %          %
Russell 1000 Value Index.............      %          %          %          %
</TABLE>
  The preceding table sets forth the Investment Adviser's composite
performance data relating to the historical performance of all discretionary
private accounts managed by the Investment Adviser that have investment
objectives, policies, and strategies substantially similar to the CORE Large
Cap Value Fund. The information is provided to illustrate the past performance
of the Investment Adviser in managing substantially similar accounts as
measured against the Russell 1000 Value Index and does not represent the
performance of the CORE Large Cap Value Fund. Investors should not consider
this performance data as a substitute for the performance of the CORE Large
Cap Value Fund nor should investors consider this data as an indication of
future performance of the CORE Large Cap Value Fund or of the Investment
Adviser. The Russell 1000 Value Index is unmanaged and investors cannot invest
directly in the index.
 
  In accordance with the standards of the Association for Investment
Management and Research ("AIMR"), the Investment Adviser's composite
performance data was calculated on a time-weighted and asset-weighted total
return basis which includes realized and unrealized gains and losses plus
income. Total return performance of the CORE Large Cap Value Fund will be
calculated in accordance with the regulations of the SEC. The SEC standardized
average annual total return is neither time-weighted nor asset-weighted and is
determined for specified periods by computing the annual percentage change in
the value of an initial amount that is invested in a share class of the Fund
at the maximum public offering price. Investors should be aware that the
differences in methodology between AIMR and SEC requirements could result in
different performance data for identical time periods.
 
  The actual expenses of the private accounts included in the composite were
lower than the estimated expenses of the Fund. Accordingly, the performance
record of the composite has been adjusted downward based on the estimated
expenses of the Service Shares of the CORE Large Cap
<PAGE>
 
Value Fund during its first year of operations. All returns presented reflect
the reinvestment of dividends and other earnings. The private accounts are not
subject to the same diversification requirements, specific tax restrictions
and investment limitations imposed on the CORE Large Cap Value Fund by the
Investment Company Act of 1940 and Subchapter M of the Internal Revenue Code.
Consequently, the performance results of the Investment Adviser's composite
could have been adversely affected if the private accounts had been regulated
as investment companies under the federal securities laws.
<PAGE>
 
- --------------------------------------------------------------------------------
 
PROSPECTUS
                      GOLDMAN SACHS DOMESTIC EQUITY FUNDS
 
January 8, 1999                  SERVICE SHARES
 
 
<TABLE>
<S>                                <C>
GOLDMAN SACHS BALANCED FUND         GOLDMAN SACHS CORE SMALL CAP
 Seeks long-term capital growth     EQUITY FUND
 and current income through in-       Seeks long-term growth of capital
 vestments in equity and fixed-       through a broadly diversified portfolio
 income securities.                   of equity securities of U.S. issuers
                                      which are included in the Russell 2000
GOLDMAN SACHS GROWTH AND INCOME       Index at the time of investment.
FUND
 Seeks long-term growth of cap-     GOLDMAN SACHS CAPITAL GROWTH FUND
 ital and growth of income            Seeks long-term growth of capital
 through investments in equity        through diversified investments in eq-
 securities that are considered       uity securities of companies that are
 to have favorable prospects          considered to have long-term capital ap-
 for capital appreciation             preciation potential.
 and/or dividend paying abili-
 ty.                                GOLDMAN SACHS MID CAP EQUITY FUND
                                      Seeks long-term capital appreciation
GOLDMAN SACHS CORE LARGE CAP          primarily through investments in equity
VALUE FUND                            securities of companies with public
 Seeks long-term growth of            stock market capitalizations within the
 capital and dividend income          range of the market capitalization of
 through a broadly diversified        companies constituting the Russell
 portfolio of equity securities       Midcap Index at the time of investment
 of large cap U.S. issuers that       (currently between $400 million and $16
 are selling at low to modest         billion).
 valuations relative to general
 market measures and that are       GOLDMAN SACHS SMALL CAP VALUE FUND
 expected to have favorable           Seeks long-term capital growth through
 prospects for capital                investments in equity securities of com-
 appreciation and/or dividend-        panies with public stock market capital-
 paying ability.                      izations of $1 billion or less at the
                                      time of investment.
GOLDMAN SACHS CORE U.S. EQUITY
FUND
 Seeks long-term growth of cap-
 ital and dividend income
 through a broadly diversified
 portfolio of large cap and
 blue chip equity securities
 representing all major sectors
 of the U.S. economy.
 
GOLDMAN SACHS CORE LARGE CAP
GROWTH FUND
 Seeks long-term growth of
 capital through a broadly
 diversified portfolio of
 equity securities of large cap
 U.S. issuers that are expected
 to have better prospects for
 earnings growth than the
 growth rate of the general
 domestic economy. Dividend
 income is a secondary
 consideration.
</TABLE>
 
                                 -------------
 
SERVICE SHARES OF THE FUNDS ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED
OR ENDORSED BY, ANY BANK OR OTHER INSURED DEPOSITORY INSTITUTION AND ARE NOT
INSURED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD
OR ANY OTHER GOVERNMENT AGENCY. AN INVESTMENT IN A FUND INVOLVES INVESTMENT
RISKS, INCLUDING POSSIBLE LOSS OF PRINCIPAL.
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS
A CRIMINAL OFFENSE.
                                                        (continued on next page)
<PAGE>
 
 
(cover continued)
 
  Goldman Sachs Asset Management ("GSAM"), New York, New York, a separate
operating division of Goldman, Sachs & Co. ("Goldman Sachs"), serves as
investment adviser to the Balanced, Growth and Income, CORE Large Cap Value,
CORE Large Cap Growth, CORE Small Cap Equity, Mid Cap Equity and Small Cap
Value (formerly "Small Cap Equity") Funds. Goldman Sachs Funds Management, L.P.
("GSFM"), New York, New York, an affiliate of Goldman Sachs, serves as
investment adviser to the CORE U.S. Equity (formerly the "Select Equity Fund")
and Capital Growth Funds. GSAM and GSFM are each referred to in this Prospectus
as the "Investment Adviser." Goldman Sachs serves as each Fund's distributor
and transfer agent.
 
  This Prospectus provides information about Goldman Sachs Trust (the "Trust")
and the Funds that a prospective investor should understand before investing.
This Prospectus should be retained for future reference. A Statement of
Additional Information (the "Additional Statement"), dated January 8 1999,
containing further information about the Trust and the Funds which may be of
interest to investors, has been filed with the Securities and Exchange
Commission ("SEC"), is incorporated herein by reference in its entirety, and
may be obtained without charge from Service Organizations (as defined herein),
or Goldman Sachs by calling the telephone number, or writing to one of the
addresses, listed on the back cover of this Prospectus. The SEC maintains a Web
site (http://www.sec.gov) that contains the Additional Statement and other
information regarding the Trust.
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                     PAGE
                                     ----
<S>                                  <C>
Fund Highlights....................    3
Fees and Expenses..................    7
Financial Highlights...............    9
Investment Objectives and Policies.   17
Description of Securities..........   22
Investment Techniques..............   28
Risk Factors.......................   32
Investment Restrictions............   34
Portfolio Turnover.................   34
Management.........................   34
Expenses...........................   39
Net Asset Value....................   40
</TABLE>
<TABLE>
<CAPTION>
                               PAGE
                               ----
<S>                            <C>
Performance Information.......  40
Shares of the Trust...........  41
Taxation......................  42
Additional Information........  43
Additional Services...........  44
Reports to Shareholders.......  44
Dividends.....................  45
Purchase of Service Shares....  45
Exchange Privilege............  47
Redemption of Service Shares..  47
Appendix A.................... A-1
</TABLE>
                                       2
<PAGE>
 
 
 
                                FUND HIGHLIGHTS
 
   The following is intended to highlight certain information and is
 qualified in its entirety by the more detailed information contained in
 this Prospectus.
 
  WHAT IS THE GOLDMAN SACHS TRUST?
 
 
   The Goldman Sachs Trust is an open-end management investment company
 that offers its shares ("Shares") in several investment funds (commonly
 known as mutual funds (the "Funds")). Each Fund pools the monies of
 investors by selling its Shares to the public and investing these monies
 in a portfolio of securities designed to achieve that Fund's stated
 investment objectives.
 
  WHAT ARE THE INVESTMENT OBJECTIVES AND POLICIES OF THE FUNDS?
 
 
   Each Fund has distinct investment objectives and policies. There can be
 no assurance that a Fund's objectives will be achieved. Each Fund is a
 "diversified open-end management company" as defined in the Investment
 Company Act of 1940, as amended (the "Act"). For a further description of
 each Fund's investment objectives and policies, see "Investment
 Objectives and Policies," "Description of Securities" and "Investment
 Techniques."
 
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION> 
                INVESTMENT
 FUND NAME      OBJECTIVES               INVESTMENT CRITERIA                BENCHMARK
 ---------   ---------------    ------------------------------------    ----------------    
<S>          <C>               <C>                                      <C>
 BALANCED    Long-term         Between 45% and 65% of total assets in   Lehman Aggregate
 FUND        capital growth    equity securities and at least 25% in    Bond Index and
             and current       fixed-income senior securities.          the Standard &
             income.                                                    Poor's Index of
                                                                        500 Common
                                                                        Stocks (the "S&P
                                                                        500 Index")
- ----------------------------------------------------------------------------------------
 GROWTH AND  Long-term growth  At least 65% of total assets in equity   S&P 500 Index
 INCOME FUND of capital and    securities that the Investment Adviser
             growth of         considers to have favorable prospects
             income.           for capital appreciation and/or
                               dividend-paying ability.
- ----------------------------------------------------------------------------------------
 CORE LARGE  Long-term growth  At least 90% of total assets in equity   Russell 1000
 CAP VALUE   of capital and    securities of U.S. issuers, including    Value
 FUND        dividend income.  certain foreign issuers traded in the    Index
                               U.S. The Fund seeks to achieve its
                               objective through a broadly diversified
                               portfolio of equity securities of large
                               cap U.S. issuers that are selling at
                               low to modest valuations relative to
                               general market measures such as
                               earnings, book value and other
                               fundamental accounting measures, and
                               that are expected to have favorable
                               prospects for capital appreciation
                               and/or dividend-paying ability. The
                               Fund's investments are selected using
                               both a variety of quantitative
                               techniques and fundamental research in
                               seeking to maximize the Fund's expected
                               return, while maintaining risk, style,
                               capitalization and industry
                               characteristics similar to the Russell
                               1000 Value Index.
</TABLE>
 
 
                                       3
<PAGE>
 
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION> 

<S>          <C>               <C>                                      <C>
                INVESTMENT
 FUND NAME      OBJECTIVES               INVESTMENT CRITERIA                BENCHMARK
 ---------   ----------------     -----------------------------------   -------------
 CORE U.S.   Long-term growth  At least 90% of total assets in equity   S&P 500 Index
 EQUITY FUND of capital and    securities of U.S. issuers, including
             dividend income.  certain foreign issuers in the U.S. The
                               Fund seeks to achieve its objective
                               through a broadly diversified portfolio
                               of large cap and blue chip equity
                               securities representing all major
                               sectors of the U.S. economy. The Fund's
                               investments are selected using both a
                               variety of quantitative techniques and
                               fundamental research in seeking to
                               maximize the Fund's expected return,
                               while maintaining risk, style,
                               capitalization and industry
                               characteristics similar to the S&P 500
                               Index.
- --------------------------------------------------------------------------------------
 CORE LARGE  Long-term growth  At least 90% of total assets in equity   Russell 1000
 CAP GROWTH  of capital.       securities of U.S. issuers, including    Growth Index
 FUND        Dividend income   certain foreign issuers traded in the
             is a secondary    U.S. The Fund seeks to achieve its
             consideration.    objective through a broadly diversified
                               portfolio of equity securities of large
                               cap U.S. issuers that are expected to
                               have better prospects for earnings
                               growth than the growth rate of the
                               general domestic economy. The Fund's
                               investments are selected using both a
                               variety of quantitative techniques and
                               fundamental research in seeking to
                               maximize the Fund's expected return,
                               while maintaining risk, style,
                               capitalization and industry
                               characteristics similar to the Russell
                               1000 Growth Index.
- --------------------------------------------------------------------------------------
 CORE SMALL  Long-term growth  At least 90% of total assets in equity   Russell 2000
 CAP EQUITY  of capital.       securities of U.S. issuers, including    Index
 FUND                          certain foreign issuers traded in the
                               U.S. The Fund seeks to achieve its
                               investment objective through a broadly
                               diversified portfolio of equity
                               securities of U.S. issuers which are
                               included in the Russell 2000 Index at
                               the time of investment. The Fund's
                               investments are selected using both a
                               variety of quantitative techniques and
                               fundamental research in seeking to
                               maximize the Fund's expected return,
                               while maintaining risk, style,
                               capitalization and industry
                               characteristics similar to the Russell
                               2000 Index.
- --------------------------------------------------------------------------------------
 CAPITAL     Long-term         At least 90% of total assets in a        S&P 500 Index
 GROWTH FUND capital growth.   diversified portfolio of equity
                               securities. The Investment Adviser
                               considers long-term capital
                               appreciation potential in selecting
                               investments.
- --------------------------------------------------------------------------------------
 MID CAP     Long-term         At least 65% of total assets in          Russell Midcap
 EQUITY FUND capital           equity securities of companies with      Index
             appreciation.     public stock market capitalizations
                               within the range of the market
                               capitalization of companies
                               constituting the Russell Midcap Index
                               at the time of investment (currently
                               between $400 million and $16 billion)
                               ("Mid-Cap Companies").
- --------------------------------------------------------------------------------------
 SMALL CAP   Long-term         At least 65% of total assets in equity   Russell 2000
 VALUE FUND  capital growth.   securities of companies with public
                               stock market capitalizations of $1
                               billion or less at the time of
                               investment.
- --------------------------------------------------------------------------------------
</TABLE>
 
 
                                       4
<PAGE>
 
 WHAT ARE THE RISK FACTORS AND SPECIAL CHARACTERISTICS THAT I SHOULD
 CONSIDER BEFORE INVESTING?
 
 
  Each Fund's Share price will fluctuate with market, economic and, to the
extent applicable, foreign exchange conditions, so that an investment in
any of the Funds may be worth more or less when redeemed than when
purchased. None of the Funds should be relied upon as a complete investment
program. There can be no assurance that a Fund's investment objectives will
be achieved. See "Risk Factors."
 
  Risks of Investing in Small Capitalization Companies. To the extent that
a Fund invests in the securities of small market capitalization companies,
the Fund may be exposed to a higher degree of risk and price volatility.
Securities of such issuers may lack sufficient market liquidity to enable a
Fund to effect sales at an advantageous time or without a substantial drop
in price.
 
  Foreign Risks. Investments in securities of foreign issuers and
currencies involve risks that are different from those associated with
investments in domestic securities. The risks associated with foreign
investments and currencies include changes in relative currency exchange
rates, political and economic developments, the imposition of exchange
controls, confiscation and other governmental restrictions. Generally,
there is less availability of data on foreign companies and securities
markets as well as less regulation of foreign stock exchanges, brokers and
issuers. A Fund's investments in emerging markets and countries ("Emerging
Countries") involves greater risks than investments in the developed
countries of Western Europe, the United States, Canada, Australia, New
Zealand and Japan.
 
  Other. A Fund's use of certain investment techniques, including
derivatives, forward contracts, options and futures, will subject the Fund
to greater risk than funds that do not employ such techniques.
 
 WHO MANAGES THE FUNDS?
 
 
  Goldman Sachs Asset Management serves as Investment Adviser to the Balanced,
Growth and Income, CORE Large Cap Value, CORE Large Cap Growth, CORE Small Cap
Equity, Mid Cap Equity and Small Cap Value Funds. Goldman Sachs Funds
Management, L.P. serves as Investment Adviser to the CORE U.S. Equity and
Capital Growth Funds. As of November 20, 1998, the Investment Adviser, together
with its affiliates, acted as investment adviser or distributor for assets in
excess of $188 billion.
 
 WHO DISTRIBUTES THE FUNDS' SHARES?
 
 
  Goldman Sachs acts as distributor of each Fund's Shares (the "Distributor").
 
 WHAT IS THE MINIMUM INVESTMENT?
 
 
  The Funds do not have any minimum purchase or account requirements with
respect to Service Shares. A Service Organization may, however, impose a
minimum amount for initial and subsequent investments in Service Shares,
and may establish other requirements such as a minimum account balance.
 
 
                                       5
<PAGE>
 
 HOW DO I PURCHASE SERVICE SHARES?
 
 
  Customers of Service Organizations may invest in Service Shares only
through their Service Organizations. Service Shares of a Fund are purchased
at the current net asset value ("NAV") without any sales load. See
"Purchase of Service Shares."
 
  ADDITIONAL SERVICES. The Trust, on behalf of the Funds, has adopted a
Service Plan with respect to the Service Shares which authorizes a Fund to
compensate Service Organizations for providing account administration and
shareholder liaison services to their customers who are the beneficial
owners of such Shares. The Trust, on behalf of the Funds, will enter into
agreements with each Service Organization which will provide for
compensation to the Service Organization in an amount up to 0.50% (on an
annualized basis) of the average daily net assets of the Service Shares of
the Funds attributable to or held in the name of the Service Organization
for its customers. See "Additional Services."
 
 HOW DO I SELL MY SERVICE SHARES?
 
 
  You may redeem Service Shares upon request on any Business Day, as
defined under "Additional Information," at the NAV next determined after
receipt of such request in proper form. See "Redemption of Service Shares."
 
 HOW DO I RECEIVE DIVIDENDS AND DISTRIBUTIONS?
 
 
<TABLE>
<CAPTION>
                                       INVESTMENT INCOME DIVIDENDS CAPITAL GAINS
FUND                                        DECLARED AND PAID      DISTRIBUTIONS
- ----                                        -----------------      -------------
<S>                                    <C>                         <C>
Balanced..............................          Quarterly            Annually
Growth and Income.....................          Quarterly            Annually
CORE Large Cap Value..................          Quarterly            Annually
CORE U.S. Equity......................           Annually            Annually
CORE Large Cap Growth.................           Annually            Annually
CORE Small Cap Equity.................           Annually            Annually
Capital Growth........................           Annually            Annually
Mid Cap Equity........................           Annually            Annually
Small Cap Value.......................           Annually            Annually
</TABLE>
 
  Recordholders of Service Shares may receive dividends and distributions
in additional Service Shares of the Fund in which they have invested or may
elect to receive them in cash. For further information concerning dividends
and distributions, see "Dividends."
 
                                       6
<PAGE>
 
 
                               FEES AND EXPENSES
                               (SERVICE SHARES)
 
 
<TABLE>
<CAPTION>
                                          CORE           CORE   CORE
                                   GROWTH LARGE   CORE  LARGE  SMALL           MID   SMALL
                                    AND    CAP    U.S.   CAP    CAP   CAPITAL  CAP    CAP
                          BALANCED INCOME VALUE  EQUITY GROWTH EQUITY GROWTH  EQUITY VALUE
                            FUND    FUND  FUND    FUND   FUND   FUND   FUND    FUND  FUND
                          -------- ------ -----  ------ ------ ------ ------- ------ -----
<S>                       <C>      <C>    <C>    <C>    <C>    <C>    <C>     <C>    <C>
SHAREHOLDER TRANSACTION
EXPENSES:
 Maximum Sales Charge
  Imposed on Purchases..    None    None  None    None   None   None   None    None  None
 Maximum Sales Charge
  Imposed on Reinvested
  Dividends.............    None    None  None    None   None   None   None    None  None
 Redemption Fees........    None    None  None    None   None   None   None    None  None
 Exchange Fees..........    None    None  None    None   None   None   None    None  None
ANNUAL FUND OPERATING
 EXPENSES: (as a
 percentage of average
 daily net assets)/1/
 Management Fees (after
  waivers and
  reimbursements)/2/....    0.65%   0.70% 0.60%   0.70%  0.60%  0.85%  1.00%   0.75% 1.00%
 Service Fees/3/........    0.50%   0.50% 0.50%   0.50%  0.50%  0.50%  0.50%   0.50% 0.50%
 Other Expenses (after
  waivers and reimburse-
  ments)/4/.............    0.05%   0.09% 0.04%   0.04%  0.04%  0.08%  0.04%   0.14% 0.10%
                            ----    ----  ----    ----   ----   ----   ----    ----  ----
TOTAL FUND OPERATING
 EXPENSES (AFTER WAIVERS
 AND
 REIMBURSEMENTS)/5/.....    1.20%   1.29% 1.14%   1.24%  1.14%  1.43%  1.54%   1.39% 1.60%
                            ====    ====  ====    ====   ====   ====   ====    ====  ====
</TABLE>
- ---------------------
/1/ The Funds' annual operating expenses have been restated to reflect fees
    and expenses in effect as of September 1, 1998, except for the CORE Large
    Cap Value Fund which are based on estimated amounts for the current fiscal
    year.
/2/ The Investment Adviser has voluntarily agreed not to impose a portion of
    the management fee on the CORE U.S. Equity and CORE Large Cap Growth Funds
    equal to 0.05% and 0.15%, respectively. Without such limitations,
    management fees would be 0.75% of each Fund's average daily net assets.
/3/ Service Organizations may charge other fees to their customers who are
    beneficial owners of Service Shares in connection with their customer
    accounts.
/4/ The Investment Adviser has voluntarily agreed to reduce or limit certain
    other expenses (excluding management fees, service fees, transfer agency
    fees (equal to 0.04% of the average daily net assets of each Fund's
    Service Shares), taxes, interest and brokerage fees and litigation,
    indemnification and other extraordinary expenses) for each Fund to the
    extent such expenses exceed the following percentages of average daily net
    assets:
 
<TABLE>
<CAPTION>
                                                                         OTHER
                                                                        EXPENSES
                                                                        --------
      <S>                                                               <C>
      Balanced.........................................................  0.01%
      Growth and Income................................................  0.05%
      CORE Large Cap Value.............................................  0.00%
      CORE U.S. Equity.................................................  0.00%
      CORE Large Cap Growth............................................  0.00%
      CORE Small Cap Equity............................................  0.04%
      Capital Growth...................................................  0.00%
      Mid Cap Equity...................................................  0.10%
      Small Cap Value..................................................  0.06%
</TABLE>
 
 
                                       7
<PAGE>
 
/5/ Without the limitations described above, "Other Expenses" and "Total
    Operating Expenses" of the Service Shares of the Funds would be as set
    forth below:
 
<TABLE>
<CAPTION>
                                                                         TOTAL
                                                               OTHER   OPERATING
                                                              EXPENSES EXPENSES
                                                              -------- ---------
      <S>                                                     <C>      <C>
      Balanced ..............................................  0.28%     1.43%
      Growth and Income......................................  0.12%     1.32%
      CORE Large Cap Value...................................  0.56%     1.66%
      CORE U.S. Equity.......................................  0.12%     1.37%
      CORE Large Cap Growth..................................  0.22%     1.47%
      CORE Small Cap Equity..................................  0.48%     1.83%
      Capital Growth.........................................  0.10%     1.60%
      Mid Cap Equity.........................................  0.16%     1.41%
      Small Cap Value........................................  0.13%     1.63%
</TABLE>
 
<TABLE>
<CAPTION>
EXAMPLE:                                       1 YEAR 3 YEARS 5 YEARS 10 YEARS
- --------                                       ------ ------- ------- --------
<S>                                            <C>    <C>     <C>     <C>
You would pay the following expenses on a hy-
 pothetical $1,000 investment, assuming (1) a
 5% annual return and (2) redemption at the
 end of each time period:
Balanced......................................  $12     $38     $66     $145
Growth and Income.............................   13      41      71      156
CORE Large Cap Value..........................   12      36     N/A      N/A
CORE U.S. Equity..............................   13      39      68      150
CORE Large Cap Growth.........................   12      36      63      139
CORE Small Cap Equity.........................   15      45      78      171
Capital Growth................................   16      49      84      183
Mid Cap Equity................................   14      44      76      167
Small Cap Value...............................   16      50      87      190
</TABLE>
 
  The Investment Adviser and Goldman Sachs may modify or discontinue any of
the limitations set forth above in the future at their discretion. The
information set forth in the foregoing table and hypothetical example relates
only to Service Shares of the Funds. Each Fund also offers Institutional
Shares and Class A, Class B and Class C Shares, which are subject to different
fees and expenses (which affect performance), have different minimum
investment requirements and are entitled to different services. Information
regarding Institutional, Class A, Class B and Class C Shares may be obtained
from an investor's sales representative or from Goldman Sachs by calling the
number on the back of this Prospectus.
 
  In addition to the compensation itemized above, certain Service
Organizations may receive other compensation in connection with the sale and
distribution of Service Shares or for services to their customers' accounts
and/or the Funds. For additional information regarding such compensation, see
"Purchase of Service Shares" in this Prospectus and the Additional Statement.
 
  The purpose of the foregoing table is to assist investors in understanding
the various fees and expenses of a Fund that an investor will bear directly or
indirectly. The information on the fees and expenses included in the table and
hypothetical example above is based on each Fund's fees and expenses (actual
or estimated) and should not be considered as representative of future
expenses. Actual fees and expenses may be greater or less than those
indicated. Moreover, while the example assumes a 5% annual return, a Fund's
actual performance will vary and may result in an actual return greater or
less than 5%. See "Management--Investment Advisers" and "Additional Services."
 
                                       8
<PAGE>
 
 
                             FINANCIAL HIGHLIGHTS
 
 
         SELECTED DATA FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD
 
  The following data for the years and periods ended on or before January 31,
1998 have been audited by Arthur Andersen LLP, independent public accountants,
as indicated in their report incorporated by reference into the Additional
Statement from the Annual Report to shareholders of the Funds for the year
ended January 31, 1998 (the "Annual Report"). This information should be read
in conjunction with the financial statements and related notes incorporated by
reference and attached to the Additional Statement. The Annual Report also
contains performance information and is available upon request and without
charge by calling the telephone number or writing to one of the addresses on
the back cover of this Prospectus. Information for the period ended July 31,
1998 has not been audited. During the periods shown, the Trust did not offer
Shares of the CORE Large Cap Value Fund. Accordingly, there are no financial
highlights for this Fund.
 
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                   INCOME FROM
                            INVESTMENT OPERATIONS(E)            DISTRIBUTIONS TO SHAREHOLDERS
                           --------------------------- ------------------------------------------------
                                        NET REALIZED
                                       AND UNREALIZED
                                       GAIN (LOSS) ON                                      IN EXCESS OF
                                        INVESTMENT,                            FROM NET    NET REALIZED     NET
                 NET ASSET              FUTURES AND       FROM    IN EXCESS  REALIZED GAIN   GAIN ON     INCREASE   NET ASSET
                  VALUE,      NET     FOREIGN CURRENCY    NET       OF NET   ON INVESTMENT  INVESTMENT  (DECREASE)   VALUE,
                 BEGINNING INVESTMENT     RELATED      INVESTMENT INVESTMENT  AND FUTURES  AND FUTURES    IN NET     END OF
                 OF PERIOD   INCOME     TRANSACTIONS     INCOME     INCOME   TRANSACTIONS  TRANSACTIONS ASSET VALUE  PERIOD
                 --------- ---------- ---------------- ---------- ---------- ------------- ------------ ----------- ---------
                                                                                                               BALANCED FUND
- -----------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>              <C>        <C>        <C>           <C>          <C>         <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $20.29     $0.29         $(0.21)       $(0.28)    $  --       $  --         $  --       $(0.20)    $20.09
1998--Class B
Shares..........   20.20      0.20          (0.20)        (0.21)       --          --            --        (0.21)     19.99
1998--Class C
Shares..........   20.17      0.20          (0.21)        (0.21)       --          --            --        (0.22)     19.95
1998--Institu-
tional Shares...   20.29      0.32          (0.21)        (0.31)       --          --            --        (0.20)     20.09
1998--Service
Shares..........   20.28      0.26          (0.21)        (0.25)       --          --            --        (0.20)     20.08
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   18.78      0.57           2.66         (0.56)       --        (1.16)          --         1.51      20.29
1998--Class B
Shares..........   18.73      0.50           2.57         (0.42)     (0.02)      (1.16)          --         1.47      20.20
1998--Class C
Shares(b).......   21.10      0.25           0.24         (0.22)     (0.04)      (0.64)        (0.52)      (0.93)     20.17
1998--Institu-
tional
Shares(b).......   21.18      0.26           0.32         (0.23)     (0.08)      (0.45)        (0.71)      (0.89)     20.29
1998--Service
Shares(b).......   21.18      0.22           0.32         (0.22)     (0.06)      (0.72)        (0.44)      (0.90)     20.28
- -----------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   17.31      0.66           2.47         (0.66)       --        (1.00)          --         1.47      18.78
1997--Class B
Shares(b).......   17.46      0.42           2.34         (0.42)     (0.07)      (1.00)          --         1.27      18.73
- -----------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   14.22      0.51           3.43         (0.50)       --        (0.35)          --         3.09      17.31
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1995--Class A
Shares(b).......   14.18      0.10           0.02         (0.08)       --          --            --         0.04      14.22
<CAPTION>
                                                                                   RATIOS ASSUMING
                                                                                 NO VOLUNTARY WAIVER
                                                                                      OF FEES OR
                                                                                 EXPENSE LIMITATIONS
                                                                               -------------------------
                                                                   RATIO OF                  RATIO OF
                                             NET      RATIO OF        NET                       NET
                                          ASSETS AT      NET      INVESTMENT    RATIO OF    INVESTMENT
                             PORTFOLIO      END OF   EXPENSES TO   INCOME TO    EXPENSES   INCOME (LOSS)
                   TOTAL     TURNOVER       PERIOD   AVERAGE NET  AVERAGE NET  TO AVERAGE   TO AVERAGE
                 RETURN(A)    RATE(F)     (IN 000'S)   ASSETS       ASSETS     NET ASSETS   NET ASSETS
                 ----------- ------------ ---------- ------------ ------------ ----------- -------------
- -----------------------------------------------------------------------------------------------------------------------------
<S>              <C>         <C>          <C>        <C>          <C>          <C>         <C>           <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........    0.34%(d)   69.31%(d)   $191,408     1.00%(c)     2.86%(c)     1.45%(c)      2.41%(c)
1998--Class B
Shares..........   (0.04)(d)   69.31(d)      38,923     1.75(c)      2.11(c)      1.95(c)       1.91(c)
1998--Class C
Shares..........   (0.08)(d)   69.31(d)      15,693     1.75(c)      2.12(c)      1.95(c)       1.92(c)
1998--Institu-
tional Shares...    0.45(d)    69.31(d)       8,646     0.75(c)      3.11(c)      0.95(c)       2.91(c)
1998--Service
Shares..........    0.26(d)    69.31(d)         447     1.25(c)      2.51(c)      1.45(c)       2.31(c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   17.54      190.43        163,636     1.00         2.94         1.57          2.37
1998--Class B
Shares..........   16.71      190.43         23,639     1.76         2.14         2.07          1.83
1998--Class C
Shares(b).......    2.49(d)   190.43          8,850     1.77(c)      2.13(c)      2.08(c)       1.82(c)
1998--Institu-
tional
Shares(b).......    2.93(d)   190.43          8,367     0.76(c)      3.13(c)      1.07(c)       2.82(c)
1998--Service
Shares(b).......    2.66(d)   190.43             16     1.26(c)      2.58(c)      1.57(c)       2.27(c)
- -----------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   18.59      208.11         81,410     1.00         3.76         1.77          2.99
1997--Class B
Shares(b).......   16.22(d)   208.11          2,110     1.75(c)      2.59(c)      2.27(c)       2.07(c)
- -----------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   28.10      197.10         50,928     1.00         3.65         1.90          2.75
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1995--Class A
Shares(b).......    0.87(d)    14.71          7,510     1.00(c)      3.39(c)      8.29(c)      (3.90)(c)
</TABLE>
- -------------------------------------------------------------------------------
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the
    investment at the NAV at the end of the period and no sales or redemption
    charges. Total return would be reduced if a sales or redemption charge
    were taken into account.
(b) Class A and Class B Share activity commenced on October 12, 1994 and May
    1, 1996, respectively. Class C, Institutional and Service Share activity
    commenced on August 15, 1997.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
(f) Includes the effect of mortgage dollar roll transactions.
 
 
                                       9
<PAGE>
 
<TABLE>
<CAPTION>
                                 INCOME (LOSS)
                                FROM INVESTMENT
                                 OPERATIONS(E)                 DISTRIBUTIONS TO SHAREHOLDERS
                           -------------------------- ------------------------------------------------
                                            NET                                           IN EXCESS OF
                                        REALIZED AND                          FROM NET    NET REALIZED                 NET
                 NET ASSET    NET        UNREALIZED      FROM    IN EXCESS  REALIZED GAIN   GAIN ON                 INCREASE
                  VALUE,   INVESTMENT  GAIN (LOSS) ON    NET       OF NET   ON INVESTMENT  INVESTMENT  ADDITIONAL  (DECREASE)
                 BEGINNING   INCOME     INVESTMENTS   INVESTMENT INVESTMENT  AND FUTURES  AND FUTURES   PAID-IN      IN NET
                 OF PERIOD   (LOSS)     AND FUTURES     INCOME     INCOME   TRANSACTIONS  TRANSACTIONS  CAPITAL    ASSET VALUE
                 --------- ----------  -------------- ---------- ---------- ------------- ------------ ----------  -----------
                                                                                              GROWTH AND INCOME FUND
- ------------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>         <C>            <C>        <C>        <C>           <C>          <C>         <C>
FOR THE SIX MONTHS ENDED JULY 31 (UNAUDITED),
- ---------------------------------------------
1998--Class A
Shares..........  $25.93     $0.09         $(0.41)      $(0.08)    $  --        $ --         $  --       $ --        $(0.40)
1998--Class B
Shares..........   25.73       --           (0.41)         --         --          --            --         --         (0.41)
1998--Class C
Shares..........   25.70      0.01          (0.43)       (0.01)       --          --            --         --         (0.43)
1998--
Institutional
Shares..........   25.95      0.13          (0.40)       (0.13)       --          --            --         --         (0.40)
1998--Service
Shares..........   25.92      0.07          (0.39)       (0.07)       --          --            --         --         (0.39)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   23.18      0.11           5.27        (0.11)       --        (2.52)          --         --          2.75
1998--Class B
Shares..........   23.10      0.04           5.14          --       (0.03)      (2.45)        (0.07)       --          2.63
1998--Class C
Shares(b).......   28.20     (0.01)          0.06          --       (0.03)      (1.42)        (1.10)       --         (2.50)
1998--
Institutional
Shares..........   23.19      0.27           5.23        (0.22)       --        (0.24)        (2.28)       --          2.76
1998--Service
Shares..........   23.17      0.14           5.23        (0.06)     (0.04)      (2.52)          --         --          2.75
- ------------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   19.98      0.35           5.18        (0.35)     (0.01)      (1.97)          --         --          3.20
1997--Class B
Shares(b).......   20.82      0.17           4.31        (0.17)     (0.06)      (1.97)          --         --          2.28
1997--
Institutional
Shares(b).......   21.25      0.29           3.96        (0.30)     (0.04)      (1.97)          --         --          1.94
1997--Service
Shares(b).......   20.71      0.28           4.50        (0.28)     (0.07)      (1.97)          --         --          2.46
- ------------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   15.80      0.33           4.75        (0.30)       --        (0.60)          --         --          4.18
- ------------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   15.79      0.20(f)        0.30(f)     (0.20)     (0.07)      (0.33)          --        0.11(f)      0.01
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1994--Class A
Shares(b).......   14.18      0.15           1.68        (0.15)     (0.01)      (0.06)          --         --          1.61
<CAPTION>
                                                                                                RATIOS ASSUMING
                                                                                              NO VOLUNTARY WAIVER
                                                                                                  OF FEES OR
                                                                                              EXPENSE LIMITATIONS
                                                                                           --------------------------
                                                                                 RATIO
                                                                                OF NET                      RATIO
                                                        NET        RATIO      INVESTMENT                   OF NET
                 NET ASSET                           ASSETS AT    OF NET     INCOME (LOSS)    RATIO      INVESTMENT
                  VALUE,                PORTFOLIO      END OF   EXPENSES TO   TO AVERAGE   OF EXPENSES  INCOME (LOSS)
                  END OF     TOTAL      TURNOVER       PERIOD   AVERAGE NET       NET      TO AVERAGE    TO AVERAGE
                  PERIOD   RETURN(A)      RATE       (IN 000S)    ASSETS        ASSETS     NET ASSETS    NET ASSETS
                 --------- ------------ ------------ ---------- ------------ ------------- ------------ -------------
- ------------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>          <C>          <C>        <C>          <C>           <C>          <C>
FOR THE SIX MONTHS ENDED JULY 31 (UNAUDITED),
- ---------------------------------------------
1998--Class A
Shares..........  $25.53     (1.26)%(d)   37.78%(d)  $1,356,662    1.22%(c)       0.64%(c)    1.38%(c)       0.48%(c)
1998--Class B
Shares..........   25.32     (1.59)(d)    37.78(d)      416,520    1.88(c)       (0.03)(c)    1.88(c)       (0.03)(c)
1998--Class C
Shares..........   25.27     (1.63)(d)    37.78(d)       63,080    1.88(c)       (0.03)(c)    1.88(c)       (0.03)(c)
1998--
Institutional
Shares..........   25.55     (1.07)(d)    37.78(d)      192,094    0.80(c)        1.06(c)     0.80(c)        1.06(c)
1998--Service
Shares..........   25.53     (1.26)(d)    37.78(d)       12,338    1.30(c)        0.57(c)     1.30(c)        0.57(c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   25.93     23.71        61.95       1,216,582    1.25           0.43        1.42           0.26
1998--Class B
Shares..........   25.73     22.87        61.95         307,815    1.94          (0.35)       1.94          (0.35)
1998--Class C
Shares(b).......   25.70      0.51(d)     61.95          31,686    1.99(c)       (0.48)(c)    1.99(c)       (0.48)(c)
1998--
Institutional
Shares..........   25.95     24.24        61.95          36.225    0.83           0.76        0.83           0.76
1998--Service
Shares..........   25.92     23.63        61.95           8,893    1.32           0.32        1.32           0.32
- ------------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   23.18     28.42        53.03         615,103    1.22           1.60        1.43           1.39
1997--Class B
Shares(b).......   23.10     22.23(d)     53.03          17,346    1.93(c)        0.15(c)     1.93(c)        0.15(c)
1997--
Institutional
Shares(b).......   23.19     20.77(d)     53.03             193    0.82(c)        1.36(c)     0.82(c)        1.36(c)
1997--Service
Shares(b).......   23.17     23.87(d)     53.03           3,174    1.32(c)        0.94(c)     1.32(c)        0.94(c)
- ------------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   19.98     32.45        57.93         436,757    1.20           1.67        1.45           1.42
- ------------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   15.80      3.97        71.80         193,772    1.25           1.28        1.58           0.95
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1994--Class A
Shares(b).......   15.79     13.08(d)    102.23          41,528    1.25(c)        1.23(c)     3.24(c)       (0.76)(c)
</TABLE>
- -------------------------------------------------------------------------------
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the
    investment at the NAV at the end of the period and no sales or redemption
    charges. Total return would be reduced if a sales or redemption charge
    were taken into account.
(b) Class A, Class B, Class C, Institutional and Service Share activity
    commenced on February 5, 1993, May 1, 1996, August 15, 1997, June 3, 1996
    and March 6, 1996, respectively.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
(f) Calculated based on the average Shares outstanding methodology.
 
                                       10
<PAGE>
 
<TABLE>
<CAPTION>
                                  INCOME FROM                       DISTRIBUTIONS TO
                           INVESTMENT OPERATIONS(E)                   SHAREHOLDERS
                           ------------------------- -----------------------------------------------
                                                                             FROM NET   IN EXCESS OF    NET
                                       NET REALIZED                          REALIZED   NET REALIZED INCREASE/   NET
                 NET ASSET    NET     AND UNREALIZED            IN EXCESS    GAIN ON      GAIN ON    (DECREASE) ASSET
                  VALUE,   INVESTMENT GAIN (LOSS) ON  FROM NET    OF NET    INVESTMENT   INVESTMENT    IN NET   VALUE,
                 BEGINNING   INCOME    INVESTMENTS   INVESTMENT INVESTMENT AND FUTURES  AND FUTURES    ASSET    END OF   TOTAL
                 OF PERIOD   (LOSS)    AND FUTURES     INCOME     INCOME   TRANSACTIONS TRANSACTIONS   VALUE    PERIOD RETURN(A)
                 --------- ---------- -------------- ---------- ---------- ------------ ------------ ---------- ------ ---------
                                                                                               CORE U.S. EQUITY FUND
- ----------------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>            <C>        <C>        <C>          <C>          <C>        <C>    <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $26.59     $0.03        $3.61        $  --      $   --      $  --        $   --      $3.64    $30.23   13.69%(d)
1998--Class B
Shares..........   26.32     (0.04)        3.58           --          --         --            --       3.54     29.86   13.45(d)
1998--Class C
Shares..........   26.24     (0.04)        3.56           --          --         --            --       3.52     29.76   13.41(d)
1998--Institu-
tional Shares...   26.79      0.10         3.66           --          --         --            --       3.76     30.55   14.04(d)
1998--Service
Shares..........   26.53      0.05         3.60           --          --         --            --       3.65     30.18   13.76(d)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   23.32      0.11         5.63        (0.12)         --      (2.35)           --       3.27     26.59   24.96
1998--Class B
Shares..........   23.18      0.11         5.44           --       (0.06)     (2.00)        (0.35)      3.14     26.32   24.28
1998--Class C
Shares(b).......   27.48      0.03         1.22           --       (0.14)     (0.67)        (1.68)     (1.24)    26.24    4.85(d)
1998--Institu-
tional Shares...   23.44      0.30         5.65        (0.24)      (0.01)     (1.33)        (1.02)      3.35     26.79   25.76
1998--Service
Shares..........   23.27      0.19         5.57        (0.07)      (0.08)     (2.35)           --       3.26     26.53   25.11
- ----------------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   19.66      0.16         4.46        (0.16)         --      (0.80)           --       3.66     23.32   23.75
1997--Class B
Shares(b).......   20.44      0.04         3.70        (0.04)      (0.16)     (0.80)           --       2.74     23.18   18.59(d)
1997--Institu-
tional Shares...   19.71      0.30         4.51        (0.28)         --      (0.80)           --       3.73     23.44   24.63
1997--Service
Shares(b).......   21.02      0.13         3.15        (0.13)      (0.10)     (0.80)           --       2.25     23.27   15.92(d)
- ----------------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   14.61      0.19         5.43        (0.16)         --      (0.41)           --       5.05     19.66   38.63
1996--Institu-
tional
Shares(b).......   16.97      0.16         3.23        (0.24)         --      (0.41)           --       2.74     19.71   20.14(d)
- ----------------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   15.93      0.20        (0.38)       (0.20)         --      (0.94)           --      (1.32)    14.61   (1.10)
- ----------------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   15.46      0.17         2.08        (0.17)         --      (1.61)           --       0.47     15.93   15.12
- ----------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                 RATIOS ASSUMING
                                                               NO VOLUNTARY WAIVER
                                                                   OF FEES OR
                                                               EXPENSE LIMITATIONS
                                                               -------------------------
                                       RATIO OF    RATIO OF                  RATIO OF
                                         NET         NET       RATIO OF        NET
                                NET    EXPENSES   INVESTMENT   EXPENSES     INVESTMENT
                             ASSETS AT    TO        INCOME        TO         INCOME
                 PORTFOLIO    END OF   AVERAGE    (LOSS) TO    AVERAGE      (LOSS) TO
                 TURNOVER     PERIOD     NET       AVERAGE       NET         AVERAGE
                   RATE      (IN 000S)  ASSETS    NET ASSETS    ASSETS      NET ASSETS
                 ----------- --------- ---------- ------------ ------------ ------------
- ----------------------------------------------------------------------------------------------------------------------------------
<S>              <C>         <C>       <C>        <C>          <C>          <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........   22.52%(d) $527,753    1.26%(c)    0.23%(c)     1.43%(c)     0.06%(c)
1998--Class B
Shares..........   22.52(d)   102,565    1.76(c)    (0.29)(c)     1.93(c)     (0.46)(c)
1998--Class C
Shares..........   22.52(d)    15,316    1.76(c)    (0.32)(c)     1.93(c)     (0.49)(c)
1998--Institu-
tional Shares...   22.52(d)   298,853    0.65(c)     0.83(c)      0.82(c)      0.66(c)
1998--Service
Shares..........   22.52(d)    10,388    1.15(c)     0.33(c)      1.32(c)      0.16(c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   65.89      398,393    1.28        0.51         1.47         0.32
1998--Class B
Shares..........   65.89       59,208    1.79       (0.05)        1.96        (0.22)
1998--Class C
Shares(b).......   65.89        6,267    1.78(c)    (0.21)(c)  (c)1.95(c)     (0.38)(c)
1998--Institu-
tional Shares...   65.89      202,893    0.65        1.16         0.82         0.99
1998--Service
Shares..........   65.89        7,841    1.15        0.62         1.32         0.45
- ----------------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   37.78      225,968    1.29        0.91         1.53         0.67
1997--Class B
Shares(b).......   37.28       17,258    1.83(c)     0.06(c)      2.00(c)     (0.11)(c)
1997--Institu-
tional Shares...   37.28      148,942    0.65        1.52         0.85         1.32
1997--Service
Shares(b).......   37.28        3,666    1.15(c)     0.69(c)      1.35(c)      0.49(c)
- ----------------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   39.35      129,045    1.25        1.01         1.55         0.71
1996--Institu-
tional
Shares(b).......   39.35       64,829    0.65(c)     1.49(c)      0.96(c)      1.18(c)
- ----------------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   56.18       94,968    1.38        1.33         1.63         1.08
- ----------------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   87.73       92,769    1.42        0.92         1.67         0.67
- ----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the investment
    at the NAV at the end of the period and no sales or redemption charges.
    Total return would be reduced if a sales or redemption charge were taken
    into account.
(b) Class B, Class C, Institutional and Service Share activity commenced on May
    1, 1996, August 15, 1997, June 15, 1995 and June 7, 1996, respectively.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
 
                                       11
<PAGE>
 
<TABLE>
<CAPTION>
                           INCOME FROM INVESTMENT
                               OPERATIONS(E)               DISTRIBUTIONS TO SHAREHOLDERS
                           ---------------------- -----------------------------------------------
                                          NET
                                       REALIZED
                                          AND                             FROM NET   IN EXCESS OF
                                      UNREALIZED                          REALIZED   NET REALIZED   NET     NET
                 NET ASSET    NET     GAIN (LOSS)            IN EXCESS    GAIN ON      GAIN ON    INCREASE ASSET
                  VALUE,   INVESTMENT     ON       FROM NET    OF NET    INVESTMENT   INVESTMENT   IN NET  VALUE,
                 BEGINNING   INCOME   INVESTMENTS INVESTMENT INVESTMENT AND FUTURES  AND FUTURES   ASSET   END OF
                 OF PERIOD   (LOSS)   AND FUTURES   INCOME     INCOME   TRANSACTIONS TRANSACTIONS  VALUE   PERIOD
                 --------- ---------- ----------- ---------- ---------- ------------ ------------ -------- ------
<S>              <C>       <C>        <C>         <C>        <C>        <C>          <C>          <C>      <C>
                                                                    CORE LARGE CAP GROWTH FUND
- -----------------------------------------------------------------------------------------------------------------
FOR THE SIX MONTHS ENDED JULY 31 (UNAUDITED),
- ---------------------------------------------
1998--Class A
Shares..........  $11.97     $ 0.01      $1.97      $  --      $  --       $   --       $  --      $1.98   $13.95
1998--Class B
Shares..........   11.92      (0.02)      1.95         --         --           --          --       1.93    13.85
1998--Class C
Shares..........   11.93      (0.02)      1.93         --         --           --          --       1.91    13.84
1998--
Institutional
Shares..........   11.97       0.01       1.99         --         --           --          --       2.00    13.97
1998--Service
Shares..........   11.95         --       1.96         --         --           --          --       1.96    13.91
<CAPTION>
                                                                          RATIOS ASSUMING NO
                                                                          VOLUNTARY WAIVER OF
                                                                            FEES OR EXPENSE
                                                                              LIMITATIONS
                                                                          ------------------------
                                           NET    RATIO OF    RATIO OF
                                          ASSETS    NET         NET       RATIO OF    RATIO OF
                                          AT END  EXPENSES   INVESTMENT   EXPENSES      NET
                                            OF       TO        INCOME        TO      INVESTMENT
                             PORTFOLIO    PERIOD  AVERAGE    (LOSS) TO    AVERAGE     LOSS TO
                   TOTAL     TURNOVER      (IN      NET       AVERAGE       NET       AVERAGE
                 RETURN(A)     RATE       000S)    ASSETS    NET ASSETS    ASSETS    NET ASSETS
                 ----------- ----------- -------- ---------- ------------ ---------- -------------
<S>              <C>         <C>         <C>      <C>        <C>          <C>        <C>
- -----------------------------------------------------------------------------------------------------------------
FOR THE SIX MONTHS ENDED JULY 31 (UNAUDITED),
- ---------------------------------------------
1998--Class A
Shares..........   16.54%(d)   45.79%(d) $116,939   0.90%(c)    0.19%(c)    1.61%(c)   (0.52)%(c)
1998--Class B
Shares..........   16.19(d)    45.79(d)    49,881   1.65(c)    (0.56)(c)    2.11(c)    (1.02)(c)
1998--Class C
Shares..........   16.01(d)    45.79(d)    15,724   1.65(c)    (0.57)(c)    2.11(c)    (1.03)(c)
1998--
Institutional
Shares..........   16.71(d)    45.79(d)   135,153   0.65(c)     0.42(c)     1.11(c)    (0.04)(c)
1998--Service
Shares..........   16.40(d)    45.79(d)       507   1.15(c)    (0.04)(c)    1.61(c)    (0.50)(c)
FOR THE PERIOD
ENDED JANUARY
31,
- --------------
1998--Class A
Shares(b).......   10.00       0.01       2.35      (0.01)        --        (0.32)      (0.06)      1.97    11.97
1998--Class B
Shares(b).......   10.00      (0.03)      2.33         --         --        (0.18)      (0.20)      1.92    11.92
1998--Class C
Shares(b).......   11.80      (0.02)      0.54         --      (0.01)       (0.38)         --       0.13    11.93
1998--
Institutional
Shares(b).......   10.00       0.01       2.35      (0.01)        --        (0.19)      (0.19)      1.97    11.97
1998--Service
Shares(b).......   10.00      (0.02)      2.35         --         --        (0.08)      (0.30)      1.95    11.95
FOR THE PERIOD
ENDED JANUARY
31,
- --------------
1998--Class A
Shares(b).......   23.79(d)    74.97(d)    53,786   0.91(c)     0.12(c)     2.40(c)    (1.37)(c)
1998--Class B
Shares(b).......   23.26(d)    74.97(d)    13,857   1.67(c)    (0.72)(c)    2.91(c)    (1.96)(c)
1998--Class C
Shares(b).......    4.56(d)    74.97(d)     4,132   1.68(c)    (0.76)(c)    2.92(c)    (2.00)(c)
1998--
Institutional
Shares(b).......   23.89(d)    74.97(d)     4,656   0.72(c)     0.42(c)     1.96(c)    (0.82)(c)
1998--Service
Shares(b).......   23.56(d)    74.97(d)       115   1.17(c)    (0.21)(c)    2.41(c)    (1.45)(c)
</TABLE>
- --------------------------------------------------------------------------------
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the investment
    at the NAV at the end of the period and no sales or redemption charges.
    Total return would be reduced if a sales or redemption charge were taken
    into account.
(b) Class A, Class B, Institutional and Service Share activity commenced on May
    1, 1997. Class C Share activity commenced on August 15, 1997.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
 
 
                                       12
<PAGE>
 
<TABLE>
<CAPTION>
                                  INCOME FROM           DISTRIBUTIONS TO
                           INVESTMENT OPERATIONS(E)       SHAREHOLDERS
                           ------------------------- -----------------------
                                           NET
                                       REALIZED AND               FROM NET
                                        UNREALIZED                REALIZED
                 NET ASSET    NET     GAIN (LOSS) ON    FROM      GAIN ON        NET     NET ASSET
                  VALUE,   INVESTMENT INVESTMENT AND    NET      INVESTMENT   INCREASE    VALUE,               PORTFOLIO
                 BEGINNING   INCOME      FUTURES     INVESTMENT AND FUTURES    IN NET     END OF     TOTAL     TURNOVER
                 OF PERIOD   (LOSS)    TRANSACTIONS    INCOME   TRANSACTIONS ASSET VALUE  PERIOD   RETURN(A)     RATE
                 --------- ---------- -------------- ---------- ------------ ----------- --------- ---------   ---------
                                                                           CORE SMALL CAP EQUITY FUND
- --------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>            <C>        <C>          <C>         <C>       <C>         <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $10.59     $   --       $0.11         $ --       $  --        $0.11     $10.70     1.04%(d)    16.06%(d)
1998--Class B
Shares..........   10.56      (0.03)       0.10           --          --         0.07      10.63     0.66(d)     16.06(d)
1998--Class C
Shares..........   10.57      (0.03)       0.10           --          --         0.07      10.64     0.66(d)     16.06(d)
1998--Institu-
tional Shares...   10.61       0.02        0.10           --          --         0.12      10.73     1.13(d)     16.06(d)
1998--Service
Shares..........   10.60      (0.01)       0.11           --          --         0.10      10.70     0.94(d)     16.06(d)
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1998--Class A
Shares(b).......   10.00      (0.01)       0.65           --       (0.05)        0.59      10.59     6.37(d)     37.65(d)
1998--Class B
Shares(b).......   10.00      (0.03)       0.64           --       (0.05)        0.56      10.56     6.07(d)     37.65(d)
1998--Class C
Shares(b).......   10.00      (0.02)       0.64           --       (0.05)        0.57      10.57     6.17(d)     37.65(d)
1998--Institu-
tional
Shares(b).......   10.00       0.01        0.65           --       (0.05)        0.61      10.61     6.57(d)     37.65(d)
1998--Service
Shares(b).......   10.00       0.01        0.64           --       (0.05)        0.60      10.60     6.47(d)     37.65(d)
<CAPTION>
                                                        RATIOS ASSUMING NO
                                                     VOLUNTARY WAIVER OF FEES
                                                      OR EXPENSE LIMITATIONS
                                                     ---------------------------
                                                                      RATIO
                    NET      RATIO     RATIO OF NET                  OF NET
                 ASSETS AT   OF NET     INVESTMENT    RATIO OF     INVESTMENT
                  END OF    EXPENSES   INCOME (LOSS) EXPENSES TO  INCOME (LOSS)
                  PERIOD   TO AVERAGE   TO AVERAGE   AVERAGE NET   TO AVERAGE
                 (IN 000S) NET ASSETS   NET ASSETS     ASSETS      NET ASSETS
                 --------- ----------- ------------- ------------ --------------
- --------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>         <C>           <C>          <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $20,989     1.25%(c)      0.07%(c)    2.14%(c)      (0.82)%(c)
1998--Class B
Shares..........   14,843     1.95(c)      (0.62)(c)    2.64(c)       (1.31)(c)
1998--Class C
Shares..........    4,433     1.95(c)      (0.62)(c)    2.64(c)       (1.31)(c)
1998--Institu-
tional Shares...   44,614     0.95(c)       0.46 (c)    1.64(c)       (0.23)(c)
1998--Service
Shares..........       22     1.45(c)      (0.40)(c)    2.14(c)       (1.09)(c)
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1998--Class A
Shares(b).......   11,118     1.25(c)      (0.36)(c)    3.92(c)       (3.03)(c)
1998--Class B
Shares(b).......    9,957     1.95(c)      (1.04)(c)    4.37(c)       (3.46)(c)
1998--Class C
Shares(b).......    2,557     1.95(c)      (1.07)(c)    4.37(c)       (3.49)(c)
1998--Institu-
tional
Shares(b).......    9,026     0.95(c)       0.15 (c)    3.37(c)       (2.27)(c)
1998--Service
Shares(b).......        2     1.45(c)       0.40 (c)    3.87(c)       (2.02)(c)
</TABLE>
- --------------------------------------------------------------------------------
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the investment
    at the NAV at the end of the period and no sales or redemption charges.
    Total return would be reduced if a sales or redemption charge were taken
    into account.
(b) Commenced operations on August 15, 1997.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
 
 
                                       13
<PAGE>
 
<TABLE>
<CAPTION>
                                       INCOME FROM
                                 INVESTMENT OPERATIONS(E)           DISTRIBUTIONS TO SHAREHOLDERS
                           ------------------------------------ -------------------------------------
                                                                                          IN EXCESS
                                           NET                                              OF NET
                 NET ASSET    NET      REALIZED AND             IN EXCESS    FROM NET      REALIZED   NET INCREASE
                  VALUE,   INVESTMENT   UNREALIZED    FROM NET    OF NET   REALIZED GAIN   GAIN ON     (DECREASE)  NET ASSET
                 BEGINNING   INCOME   GAIN (LOSS) ON INVESTMENT INVESTMENT ON INVESTMENT  INVESTMENT  IN NET ASSET VALUE, END
                 OF PERIOD   (LOSS)    INVESTMENTS     INCOME     INCOME   TRANSACTIONS  TRANSACTIONS    VALUE     OF PERIOD
                 --------- ---------- -------------- ---------- ---------- ------------- ------------ ------------ ----------
                                                                                                    CAPITAL GROWTH FUND
- -----------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>            <C>        <C>        <C>           <C>          <C>          <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $18.48     $(0.01)      $3.32        $  --      $  --        $  --        $   --        $3.31      $21.79
1998--Class B
Shares..........   18.27      (0.06)       3.26           --         --           --            --         3.20       21.47
1998--Class C
Shares..........   18.24      (0.05)       3.23           --         --           --            --         3.18       21.42
1998--Institu-
tional Shares...   18.45       0.01        3.32           --         --           --            --         3.33       21.78
1998--Service
Shares..........   18.46      (0.02)       3.30           --         --           --            --         3.28       21.74
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   16.73       0.02        4.78        (0.01)     (0.01)       (3.03)           --         1.75       18.48
1998--Class B
Shares..........   16.67       0.02        4.61           --         --        (1.20)        (1.83)        1.60       18.27
1998--Class C
Shares(b).......   19.73      (0.02)       1.60           --      (0.04)       (0.47)        (2.56)       (1.49)      18.24
1998--Institu-
tional
Shares(b).......   19.88       0.02        1.66        (0.01)     (0.07)       (0.41)        (2.62)       (1.43)      18.45
1998--Service
Shares(b).......   19.88      (0.01)       1.66           --      (0.04)       (0.76)        (2.27)       (1.42)      18.46
- -----------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   14.91       0.10        3.56        (0.10)     (0.02)       (1.72)           --         1.82       16.73
1997--Class B
Shares(b).......   15.67       0.01        2.81        (0.01)     (0.09)       (1.72)           --         1.00       16.67
- -----------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   13.67       0.12        3.93        (0.12)        --        (2.69)           --         1.24       14.91
- -----------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   15.96       0.03       (0.69)       (0.01)        --        (1.62)           --        (2.29)      13.67
- -----------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   14.64       0.02        2.40        (0.01)     (0.02)       (1.07)           --         1.32       15.96
- -----------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                                      RATIOS ASSUMING
                                                                                    NO VOLUNTARY WAIVER
                                                                                          OF FEES
                                                                                 ---------------------------
                                                                    RATIO OF                  RATIO OF NET
                                         NET ASSETS   RATIO OF   NET INVESTMENT   RATIO OF     INVESTMENT
                             PORTFOLIO   AT END OF  NET EXPENSES INCOME (LOSS)   EXPENSES TO  INCOME (LOSS)
                   TOTAL     TURNOVER      PERIOD    TO AVERAGE    TO AVERAGE    AVERAGE NET   TO AVERAGE
                 RETURN(A)     RATE      (IN 000S)   NET ASSETS    NET ASSETS      ASSETS      NET ASSETS
                 ----------- ----------- ---------- ------------ --------------- ------------ --------------
- -----------------------------------------------------------------------------------------------------------------------------
<S>              <C>         <C>         <C>        <C>          <C>             <C>          <C>            <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........   17.91%(d)   10.02%(d) $1,639,118     1.39%(c)     (0.12)%(c)     1.64%(c)      (0.37)%(c)
1998--Class B
Shares..........   17.52(d)    10.02(d)     125,092     2.14(c)      (0.92)(c)      2.14(c)       (0.92)(c)
1998--Class C
Shares..........   17.43(d)    10.02(d)      27,385     2.14(c)      (0.94)(c)      2.14(c)       (0.94)(c)
1998--Institu-
tional Shares...   18.05(d)    10.02(d)      15,248     1.10(c)       0.11 (c)      1.10(c)        0.11 (c)
1998--Service
Shares..........   17.77(d)    10.02(d)       1,222     1.60(c)      (0.44)(c)      1.60(c)       (0.44)(c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   29.71       61.50      1,256,595     1.40          0.08          1.65          (0.17)
1998--Class B
Shares..........   28.73       61.50         40,827     2.18         (0.77)         2.18          (0.77)
1998--Class C
Shares(b).......    8.83(d)    61.50          5,395     2.21(c)      (0.86)(c)      2.21(c)       (0.86)(c)
1998--Institu-
tional
Shares(b).......    9.31(d)    61.50          7,262     1.16(c)       0.18 (c)      1.16(c)        0.18 (c)
1998--Service
Shares(b).......    9.18(d)    61.50              2     1.50(c)      (0.16)(c)      1.50(c)       (0.16)(c)
- -----------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   25.97       52.92        920,646     1.40          0.62          1.65           0.37
1997--Class B
Shares(b).......   19.39(d)    52.92          3,221     2.15(c)      (0.39)(c)      2.15(c)       (0.39)(c)
- -----------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   30.45       63.90        881,056     1.36          0.65          1.61           0.40
- -----------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   (4.38)      38.36        862,105     1.38          0.16          1.63          (0.09)
- -----------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   16.89       36.12        833,682     1.38          0.13          1.63          (0.12)
- -----------------------------------------------------------------------------------------------------------------------------
</TABLE>
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the
    investment at the NAV at the end of the period and no sales or redemption
    charges. Total return would be reduced if a sales or redemption charge
    were taken into account.
(b) Class B, Class C, Institutional and Service Share activity commenced on
    May 1, 1996, August 15, 1997, August 15, 1997 and August 15, 1997,
    respectively.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
                                       14
<PAGE>
 
<TABLE>
<CAPTION>
                                     INCOME FROM
                              INVESTMENT OPERATIONS(E)             DISTRIBUTIONS TO SHAREHOLDERS
                           ------------------------------- ---------------------------------------------
                                          NET REALIZED
                                         AND UNREALIZED                                          NET
                                         GAIN (LOSS) ON                            FROM NET    INCREASE   NET
                 NET ASSET    NET         INVESTMENTS,                IN EXCESS    REALIZED   (DECREASE) ASSET
                  VALUE,   INVESTMENT     OPTIONS AND       FROM NET    OF NET     GAIN ON      IN NET   VALUE,
                 BEGINNING   INCOME     FOREIGN CURRENCY   INVESTMENT INVESTMENT  INVESTMENT    ASSET    END OF   TOTAL
                 OF PERIOD   (LOSS)   RELATED TRANSACTIONS   INCOME     INCOME   TRANSACTIONS   VALUE    PERIOD RETURN(A)
                 --------- ---------- -------------------- ---------- ---------- ------------ ---------- ------ ---------
                                                                                   MID CAP EQUITY FUND
- ----------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>                  <C>        <C>        <C>          <C>        <C>    <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........  $21.61     $0.03           $(0.79)         $ --       $ --        $ --        $(0.76)  $20.85   (3.52)%(d)
1998--Class B
Shares..........   21.57     (0.02)           (0.78)           --         --          --         (0.80)   20.77   (3.71)(d)
1998--Class C
Shares..........   21.59     (0.02)           (0.79)           --         --          --         (0.81)   20.78   (3.75)(d)
1998--Institu-
tional Shares...   21.65      0.09            (0.80)           --         --          --         (0.71)   20.94   (3.28)(d)
1998--Service
Shares..........   21.62       --             (0.75)           --         --          --         (0.75)   20.87   (3.47)(d)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares(b).......   23.63      0.09             0.76          (0.06)     (0.04)      (2.77)       (2.02)   21.61    3.42(d)
1998--Class B
Shares(b).......   23.63      0.06             0.74          (0.09)       --        (2.77)       (2.06)   21.57    3.17(d)
1998--Class C
Shares(b).......   23.63      0.06             0.76          (0.09)       --        (2.77)       (2.04)   21.59    3.27(d)
1998--Institu-
tional Shares...   18.73      0.16             5.66          (0.13)       --        (2.77)        2.92    21.65   30.86
1998--Service
Shares(b).......   23.01      0.09             1.40          (0.11)       --        (2.77)       (1.39)   21.62    6.30(d)
- ----------------------------------------------------------------------------------------------------------------------------
1997--Institu-
tional Shares...   15.91      0.24             3.77          (0.24)     (0.93)      (0.02)        2.82    18.73   25.63
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1996--Institu-
tional
Shares(b).......   15.00      0.13             0.90          (0.12)       --          --          0.91    15.91    6.89(d)
<CAPTION>
                                                                  RATIOS ASSUMING NO
                                                                 EXPENSE LIMITATIONS
                                                                ------------------------
                                        RATIO OF    RATIO OF
                                          NET         NET       RATIO OF     RATIO OF
                                        EXPENSES   INVESTMENT   EXPENSES        NET
                             NET ASSETS    TO        INCOME        TO       INVESTMENT
                 PORTFOLIO   AT END OF  AVERAGE    (LOSS) TO    AVERAGE    INCOME (LOSS)
                 TURNOVER      PERIOD     NET       AVERAGE       NET       TO AVERAGE
                   RATE      (IN 000S)   ASSETS    NET ASSETS    ASSETS     NET ASSETS
                 ----------- ---------- ---------- ------------ ---------- -------------
                                                                                   MID CAP EQUITY FUND
- ----------------------------------------------------------------------------------------------------------------------------
<S>              <C>         <C>        <C>        <C>          <C>        <C>
FOR THE SIX MONTHS ENDED JULY 31 (UN-
AUDITED),
- -------------------------------------
1998--Class A
Shares..........   27.55%(d)  $118,663    1.35%(c)    0.28%(c)    1.47%(c)      0.16%(c)
1998--Class B
Shares..........   27.55(d)     46,268    1.85(c)    (0.21)(c)    1.97(c)      (0.33)(c)
1998--Class C
Shares..........   27.55(d)     12,615    1.85(c)    (0.21)(c)    1.97(c)      (0.33)(c)
1998--Institu-
tional Shares...   27.55(d)    230,251    0.85(c)     0.79 (c)    0.97(c)       0.67 (c)
1998--Service
Shares..........   27.55(d)         83    1.35(c)     0.18 (c)    1.47(c)       0.06 (c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares(b).......   62.60        90,588    1.35(c)     0.33 (c)    1.47(c)       0.21 (c)
1998--Class B
Shares(b).......   62.60        28,743    1.85(c)    (0.20)(c)    1.97(c)      (0.32)(c)
1998--Class C
Shares(b).......   62.60         6,445    1.85(c)    (0.23)(c)    1.97(c)      (0.35)(c)
1998--Institu-
tional Shares...   62.60       236,440    0.85        0.78        0.97          0.66
1998--Service
Shares(b).......   62.60             8    1.35(c)     0.63(c)     1.43(c)       0.51(c)
- ----------------------------------------------------------------------------------------------------------------------------
1997--Institu-
tional Shares...   74.03       145,253    0.85        1.35        0.91          1.29
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1996--Institu-
tional
Shares(b).......   58.77(d)    135,671    0.85(c)     1.67(c)     0.98(c)       1.54(c)
</TABLE>
- -------------------------------------------------------------------------------
(a) Assumes Investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the
    investment at the NAV at the end of the period and no sales or redemption
    charges. Total return would be reduced if a sales or redemption charge
    were taken into account.
(b) Class A, Class B, Class C, Institutional and Service Share activity
    commenced on August 15, 1997, August 15, 1997, August 15, 1997, August 1,
    1995 and July 18, 1997, respectively.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
 
 
                                       15
<PAGE>
 
<TABLE>
<CAPTION>
                                 INCOME (LOSS) FROM
                              INVESTMENT OPERATIONS(E)         DISTRIBUTIONS TO SHAREHOLDERS
                           ------------------------------- -------------------------------------
                                                                          FROM NET
                                          NET REALIZED                 REALIZED GAIN
                 NET ASSET    NET        AND UNREALIZED       FROM     ON INVESTMENT, IN EXCESS  NET INCREASE
                  VALUE,   INVESTMENT    GAIN (LOSS) ON        NET      OPTIONS AND     OF NET    (DECREASE)  NET ASSET
                 BEGINNING   INCOME      INVESTMENT AND    INVESTMENT,    FUTURES     INVESTMENT IN NET ASSET VALUE, END
                 OF PERIOD   (LOSS)   OPTIONS TRANSACTIONS   INCOME     TRANSACTIONS    INCOME      VALUE     OF PERIOD
                 --------- ---------- -------------------- ----------- -------------- ---------- ------------ ----------
                                                                                     SMALL CAP VALUE FUND
- ------------------------------------------------------------------------------------------------------------------------
<S>              <C>       <C>        <C>                  <C>         <C>            <C>        <C>          <C>
FOR THE SIX MONTHS ENDED JULY 31 (UNAUDITED),
- ---------------------------------------------
1998--Class A
Shares..........  $24.05     $(0.02)         $(0.17)         $  --         $  --        $  --       $(0.19)     $23.86
1998--Class B
Shares..........   23.73      (0.11)          (0.17)            --            --           --        (0.28)      23.45
1998--Class C
Shares..........   23.73      (0.09)          (0.19)            --            --           --        (0.28)      23.45
1998--Institu-
tional Shares...   24.09       0.03           (0.18)            --            --           --        (0.15)      23.94
1998--Service
Shares..........   24.05        --            (0.19)            --            --           --        (0.19)      23.86
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   20.91       0.14            5.33             --          (2.33)         --         3.14       24.05
1998--Class B
Shares..........   20.80      (0.01)           5.27             --          (2.33)         --         2.93       23.73
1998--Class C
Shares(b).......   24.69      (0.06)           1.43             --          (1.99)       (0.34)      (0.96)      23.73
1998--Institu-
tional
Shares(b).......   24.91       0.03            1.48             --          (2.05)       (0.28)      (0.82)      24.09
1998--Service
Shares(b).......   24.91      (0.01)           1.48             --          (2.02)       (0.31)      (0.86)      24.05
- ------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   17.29      (0.21)           4.92             --          (1.09)         --         3.62       20.91
1997--Class B
Shares(b).......   20.79      (0.11)           1.21             --          (1.09)         --         0.01       20.80
- ------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........   16.14      (0.23)           1.39             --          (0.01)         --         1.15       17.29
- ------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........   20.67      (0.07)          (3.53)            --          (0.69)       (0.24)      (4.53)      16.14
- ------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   16.68      (0.04)           5.03             --          (1.00)         --         3.99       20.67
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1993--Class A
Shares(b).......   14.18       0.03            2.50           (0.03)          --           --         2.50       16.68
<CAPTION>
                                                                                        RATIOS ASSUMING NO
                                                                                         VOLUNTARY WAIVER
                                                                                             OF FEES
                                                                                    ----------------------------
                                                                       RATIO OF                     RATIO OF
                                           NET ASSETS   RATIO OF    NET INVESTMENT   RATIO OF    NET INVESTMENT
                               PORTFOLIO   AT END OF  NET EXPENSES INCOME (LOSS) TO EXPENSES TO  INCOME (LOSS)
                   TOTAL       TURNOVER      PERIOD    TO AVERAGE    AVERAGE NET      AVERAGE    TO AVERAGE NET
                 RETURN(A)       RATE      (IN 000S)   NET ASSETS       ASSETS      NET ASSETS       ASSETS
                 ------------- ----------- ---------- ------------ ---------------- ------------ ---------------
- ------------------------------------------------------------------------------------------------------------------------
<S>              <C>           <C>         <C>        <C>          <C>              <C>          <C>
FOR THE SIX MONTHS ENDED JULY 31 (UNAUDITED),
- ---------------------------------------------
1998--Class A
Shares..........   (0.79)%(d)    46.40%(d)  $402,797      1.50%(c)      (0.16)%(c)     1.75%(c)      (0.41)%(c)
1998--Class B
Shares..........   (1.18)(d)     46.40(d)     54,241      2.25(c)       (0.90)(c)      2.25(c)       (0.90)(c)
1998--Class C
Shares..........   (1.18)(d)     46.40(d)      9,308      2.25(c)       (0.88)(c)      2.25(c)       (0.88)(c)
1998--Institu-
tional Shares...   (0.62)(d)     46.40(d)     18,197      1.15(c)        0.21(c)       1.15(c)        0.21(c)
1998--Service
Shares..........   (0.79)(d)     46.40(d)         76      1.65(c)       (0.09)(c)      1.65(c)       (0.09)(c)
FOR THE YEARS ENDED JANUARY 31,
- -------------------------------
1998--Class A
Shares..........   26.17         84.81       370,246      1.54          (0.28)         1.76          (0.50)
1998--Class B
Shares..........   25.29         84.81        42,677      2.29          (0.92)         2.29          (0.92)
1998--Class C
Shares(b).......    5.51(d)      84.81         5,604      2.09(c)       (0.79)(c)      2.09(c)       (0.79)(c)
1998--Institu-
tional
Shares(b).......    6.08(d)      84.81        14,626      1.16(c)        0.27(c)       1.16(c)        0.27(c)
1998--Service
Shares(b).......    5.91(d)      84.81             2      1.45(c)       (0.07)(c)      1.45(c)       (0.07)(c)
- ------------------------------------------------------------------------------------------------------------------------
1997--Class A
Shares..........   27.28         99.46       212,061      1.60          (0.72)         1.85          (0.97)
1997--Class B
Shares(b).......    5.39(d)      99.46         3,674      2.35(c)       (1.63)(c)      2.35(c)       (1.63)(c)
- ------------------------------------------------------------------------------------------------------------------------
1996--Class A
Shares..........    7.20         57.58       204,994      1.41          (0.59)         1.66          (0.84)
- ------------------------------------------------------------------------------------------------------------------------
1995--Class A
Shares..........  (17.53)        43.67       319,487      1.53          (0.53)         1.78          (0.78)
- ------------------------------------------------------------------------------------------------------------------------
1994--Class A
Shares..........   30.13         56.81       261,074      1.60          (0.45)         1.85          (0.70)
FOR THE PERIOD ENDED JANUARY 31,
- --------------------------------
1993--Class A
Shares(b).......   17.86(d)       7.12        59,339      1.65(c)        0.62(c)       2.70(c)       (0.43)(c)
</TABLE>
- --------------------------------------------------------------------------------
(a) Assumes investment at the NAV at the beginning of the period, reinvestment
    of all dividends and distributions, a complete redemption of the investment
    at the NAV at the end of the period and no sales or redemption charges.
    Total return would be reduced if a sales or redemption charge were taken
    into account.
(b) Class A, Class B, Class C, Institutional and Service Share activity
    commenced on October 22, 1992, May 1, 1996, August 15, 1997, August 15,
    1997 and August 15, 1997, respectively.
(c) Annualized.
(d) Not annualized.
(e) Includes the balancing effect of calculating per Share amounts.
 
                                       16
<PAGE>
 
 
                      INVESTMENT OBJECTIVES AND POLICIES
 
 
  The investment objectives and principal investment policies of each Fund are
described below. Other investment practices and management techniques, which
involve certain risks are described under "Description of Securities," "Risk
Factors" and "Investment Techniques." There can be no assurance that a Fund's
investment objectives will be achieved.
 
  The Investment Adviser may purchase for the Funds common stocks, preferred
stocks, interests in real estate investment trusts, convertible debt
obligations, convertible preferred stocks, equity interests in trusts,
partnerships, joint ventures, limited liability companies and similar
enterprises, warrants and stock purchase rights ("equity securities"). In
choosing a Fund's securities, the Investment Adviser utilizes first-hand
fundamental research, including visiting company facilities to assess
operations and to meet decision-makers. The Investment Adviser may also use
macro analysis of numerous economic and valuation variables to anticipate
changes in company earnings and the overall investment climate. The Investment
Adviser is able to draw on the research and market expertise of the Goldman
Sachs Global Investment Research Department and other affiliates of the
Investment Adviser, as well as information provided by other securities
dealers. Equity securities in a Fund's portfolio will generally be sold when
the Investment Adviser believes that the market price fully reflects or
exceeds the securities' fundamental valuation or when other more attractive
investments are identified.
 
  Value Style Funds. The Growth and Income, Mid Cap Equity, Small Cap Value
Funds and a portion of the equity component of the Balanced Fund are managed
using a value oriented approach. The Investment Adviser evaluates securities
using fundamental analysis and intends to purchase equity securities that are,
in its view, underpriced relative to a combination of such companies' long-
term earnings prospects, growth rate, free cash flow and/or dividend-paying
ability. Consideration will be given to the business quality of the issuer.
Factors positively affecting the Investment Adviser's view of that quality
include the competitiveness and degree of regulation in the markets in which
the company operates, the existence of a management team with a record of
success, the position of the company in the markets in which it operates, the
level of the company's financial leverage and the sustainable return on
capital invested in the business. The Funds may also purchase securities of
companies that have experienced difficulties and that, in the opinion of the
Investment Adviser, are available at attractive prices.
 
  Growth Style Funds. The Capital Growth Fund and a portion of the equity
component of the Balanced Fund are managed using a growth equity oriented
approach. Equity securities for these Funds is selected based on their
prospects for above average growth. The Investment Adviser will select
securities of growth companies trading, in the Investment Adviser's opinion,
at a reasonable price relative to other industries, competitors and historical
price/earnings multiples. The Funds generally will invest in companies whose
earnings are believed to be in a relatively strong growth trend, or, to a
lesser extent, in companies in which significant further growth is not
anticipated but whose market value per share is thought to be undervalued. In
order to determine whether a security has favorable growth prospects, the
Investment Adviser ordinarily looks for one or more of the following
characteristics in relation to the security's prevailing price: prospects for
above average sales and earnings growth per share; high return on invested
capital; free cash flow generation; sound balance sheet, financial and
accounting policies, and overall financial strength; strong competitive
advantages; effective research, product development, and marketing; pricing
flexibility; strength of management; and general operating characteristics
that will enable the company to compete successfully in its marketplace.
 
 
                                      17
<PAGE>
 
  Quantitative Style Funds. The CORE Large Cap Value, CORE U.S. Equity, CORE
Large Cap Growth and CORE Small Cap Equity Funds (the "CORE Funds") are
managed using both quantitative and fundamental techniques. CORE is an acronym
for "Computer-Optimized, Research-Enhanced," which reflects the CORE Funds'
investment process. This investment process and the proprietary multifactor
model used to implement it are discussed below.
 
  Investment Process. The Investment Adviser begins with a broad universe of
U.S. equity securities for the CORE Funds. As described more fully below, the
Investment Adviser uses a proprietary multifactor model (the "Multifactor
Model") to forecast the returns of different markets and individual
securities. In the case of an equity security followed by the Goldman Sachs
Global Investment Research Department (the "Research Department"), a rating is
assigned based upon the Research Department's evaluation. In the discretion of
the Investment Adviser, ratings may also be assigned to equity securities
based on research ratings obtained from other industry sources.
 
  In building a diversified portfolio for each CORE Fund, the Investment
Adviser utilizes optimization techniques to seek to maximize the Fund's
expected return, while maintaining a risk profile similar to the Fund's
benchmark. Each portfolio is primarily comprised of securities rated highest
by the foregoing investment process and has risk characteristics and industry
weightings similar to the relevant Fund's benchmark.
 
  Multifactor Model. The Multifactor Model is a rigorous computerized rating
system for forecasting the returns of different equity markets and individual
equity securities according to fundamental investment characteristics. The
CORE Funds use the Multifactor Model to forecast the returns of securities
held in each Fund's portfolio. The Multifactor Model incorporates common
variables covering measures of value, growth, momentum and risk (e.g.,
book/price ratio, earnings/price ratio, price momentum, price volatility,
consensus growth forecasts, earnings estimate revisions and earnings
stability). All of the factors used in the Multifactor Model have been shown
to significantly impact the performance of the securities and markets they
were designed to forecast.
 
  The weightings assigned to the factors in the Multifactor Model used by the
CORE Funds are derived using a statistical formulation that considers each
factor's historical performance in different market environments. As such, the
Multifactor Model is designed to evaluate each security using only the factors
that are statistically related to returns in the anticipated market
environment. Because it includes many disparate factors, the Investment
Adviser believes that the Multifactor Model is broader in scope and provides a
more thorough evaluation than most conventional, quantitative models.
Securities and markets ranked highest by the Multifactor Model do not have one
dominant investment characteristic; rather, they possess an attractive
combination of investment characteristics.
 
  Research Department. In assigning ratings to equity securities, the Research
Department uses a four category rating system ranging from "recommended for
purchase" to "likely to underperform." The ratings reflect the analyst's
judgment as to the investment results of a specific security and incorporate
economic outlook, valuation, risk and a variety of other factors.
 
  By employing both a quantitative (i.e., the Multifactor Model) and a
qualitative (i.e., research enhanced) method of selecting securities, the CORE
Funds seek to capitalize on the strengths of each discipline.
 
 
                                      18
<PAGE>
 
 BALANCED FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term capital growth and current income. The Fund seeks capital
appreciation primarily through the equity component of its portfolio while
investing in fixed-income securities primarily to provide income for regular
quarterly dividends.
 
  Primary Investment Focus. The Fund invests, under normal circumstances,
between 45% and 65% of its total assets in equity securities. The Fund also
invests at least 25% of its total assets in fixed-income senior securities and
the remainder of its assets in other fixed-income securities and cash. The
percentage of the portfolio invested in equity and fixed-income securities
will vary from time to time as the Investment Adviser evaluates their relative
attractiveness based on market valuations, economic growth and inflation
prospects. This allocation is subject to the Fund's intention to pay regular
quarterly dividends. The amount of quarterly dividends can also be expected to
fluctuate in accordance with factors such as prevailing interest rates and the
percentage of the Fund's assets invested in fixed-income securities.
 
  Other. Although the Fund's equity investments consist primarily of publicly
traded U.S. securities, the Fund may invest up to 10% of its total assets in
the equity securities of foreign issuers, including issuers in Emerging
Countries and equity securities quoted in foreign currencies. A portion of the
Fund's portfolio of equity securities may be selected primarily to provide
current income. Equity securities selected to provide current income may
include interests in real estate investment trusts, convertible securities,
preferred stocks, utility stocks and interests in limited partnerships.
 
  The Fund's fixed-income securities primarily include securities issued by
the U.S. Government, its agencies, instrumentalities or sponsored enterprises,
corporations or other entities, mortgage-backed and asset-backed securities,
municipal securities and custodial receipts. The Fund may also invest in debt
obligations (U.S. dollar and non-U.S. dollar denominated) issued or guaranteed
by one or more foreign governments or any of their political subdivisions,
agencies or instrumentalities and foreign corporations or other entities. Such
securities are collectively referred to herein as "fixed-income securities."
The Fund's investments in fixed-income securities that are issued by foreign
issuers, including issuers in Emerging Countries, may not exceed 10% of the
Fund's total assets. The Fund may employ certain currency techniques to seek
to hedge against currency exchange rate fluctuations or to seek to increase
total return. When used to seek to enhance return, these management techniques
are considered speculative. Such currency management techniques involve risks
different from those associated with investing solely in securities of U.S.
issuers quoted in U.S. dollars. See "Description of Securities," "Investment
Techniques" and "Risk Factors."
 
 GROWTH AND INCOME FUND
 
 
  Objectives. The Fund's investment objectives are to provide investors with
long-term growth of capital and growth of income.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 65% of its total assets in equity securities that the Investment Adviser
considers to have favorable prospects for capital appreciation and/or
dividend-paying ability.
 
  Other. The Fund may invest up to 35% of its total assets in fixed-income
securities that, in the opinion of the Investment Adviser, offer the potential
to further the Fund's investment objectives. In addition, although the Fund
will invest primarily in publicly traded U.S. securities, it may invest up to
25% of its total assets in foreign securities, including securities of issuers
in Emerging Countries and securities quoted in foreign currencies.
 
                                      19
<PAGE>
 
 CORE LARGE CAP VALUE FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term growth of capital and dividend income. The Fund seeks to achieve its
objective through a broadly diversified portfolio of equity securities of
large cap U.S. issuers that are selling at low to modest valuations relative
to general market measures such as earnings, book value and other fundamental
accounting measures, and that are expected to have favorable prospects for
capital appreciation and/or dividend-paying ability.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 90% of its total assets in equity securities of U.S. issuers, including
certain foreign issuers that are traded in the United States. The Fund's
investments are selected using both a variety of quantitative techniques and
fundamental research in seeking to maximize the Fund's expected return, while
maintaining risk, style, capitalization and industry characteristics similar
to the Russell 1000 Value Index. The Fund seeks a portfolio comprised of
companies with above average capitalizations and low to moderate valuations as
measured by price/earnings ratios, book value and other fundamental accounting
measures. The Fund's investments in fixed-income securities are limited to
securities that are considered cash equivalents.
 
  For a description of the investment process of the Fund, see "Investment
Objectives and Policies--Quantitative Style Funds."
 
 CORE U.S. EQUITY FUND (FORMERLY, THE "SELECT EQUITY FUND")
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term growth of capital and dividend income. The Fund seeks to achieve its
objective through a broadly diversified portfolio of large cap and blue chip
equity securities representing all major sectors of the U.S. economy.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 90% of its total assets in equity securities of U.S. issuers, including
certain foreign issuers that are traded in the United States. The Fund's
investments are selected using both a variety of quantitative techniques and
fundamental research in seeking to maximize the Fund's expected return, while
maintaining risk, style, capitalization and industry characteristics similar
to the S&P 500 Index. The Fund seeks a broad representation in most major
sectors of the U.S. economy and a portfolio comprised of companies with
average long-term earnings growth expectations and dividend yields. The Fund's
investments in fixed-income securities are limited to securities that are
considered cash equivalents.
 
  For a description of the investment process of the Fund, see "Investment
Objectives and Policies--Quantitative Style Funds."
 
 CORE LARGE CAP GROWTH FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term growth of capital. The Fund seeks to achieve its objective through a
broadly diversified portfolio of equity securities of large cap U.S. issuers
that are expected to have better prospects for earnings growth than the growth
rate of the general domestic economy. Dividend income is a secondary
consideration.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 90% of its total assets in equity securities of U.S. issuers, including
certain foreign issuers that are traded in the United States. The Investment
Adviser emphasizes a company's growth prospects in analyzing equity securities
to be purchased by
 
                                      20
<PAGE>
 
the Fund. The Fund's investments are selected using both a variety of
quantitative techniques and fundamental research in seeking to maximize the
Fund's expected return, while maintaining risk, style, capitalization and
industry characteristics similar to the Russell 1000 Growth Index. The Fund
seeks a portfolio comprised of companies with above average capitalizations
and earnings growth expectations and below average dividend yields. The Fund's
investments in fixed-income securities are limited to securities that are
considered cash equivalents.
 
  For a description of the investment process of the Fund, see "Investment
Objectives and Policies--Quantitative Style Funds."
 
 CORE SMALL CAP EQUITY FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term growth of capital. The Fund seeks to achieve its objective through a
broadly diversified portfolio of equity securities of U.S. issuers which are
included in the Russell 2000 Index at the time of investment.
 
   Primary Investment Focus. The Fund invests, under normal circumstances, at
least 90% of its total assets in equity securities of U.S. issuers, including
certain foreign issuers that are traded in the United States. The Fund's
investments are selected using both a variety of quantitative techniques and
fundamental research in seeking to maximize the Fund's expected return, while
maintaining risk, style, capitalization and industry characteristics similar
to the Russell 2000 Index. The Fund seeks a portfolio comprised of companies
with small market capitalizations, strong expected earnings growth and
momentum, and better valuation and risk characteristics than the Russell 2000
Index. The Fund's investments in fixed-income securities are limited to
securities that are considered cash equivalents.
 
  The Investment Adviser believes that companies in which the Fund may invest
offer greater opportunity for growth of capital than larger, more mature,
better known companies. Investments in small market capitalization issuers
involve special risks. See "Description of Securities" and "Risk Factors." If
the issuer of a portfolio security held by the Fund is no longer included in
the Russell 2000 Index, the Fund may, but is not required to, sell the
security.
 
  For a description of the investment process of the Fund, see "Investment
Objectives and Policies--Quantitative Style Funds."
 
 CAPITAL GROWTH FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term growth of capital.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 90% of its total assets in equity securities. The Fund seeks to achieve
its investment objective by investing in a diversified portfolio of equity
securities that are considered by the Investment Adviser to have long-term
capital appreciation potential.
 
  Other. Although the Fund will invest primarily in publicly traded U.S.
securities, it may invest up to 10% of its total assets in foreign securities,
including securities of issuers in Emerging Countries and securities quoted in
foreign currencies.
 
                                      21
<PAGE>
 
 MID CAP EQUITY FUND
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term capital appreciation.
 
  Primary Investment Focus. The Fund invests, under normal circumstances,
substantially all of its assets in equity securities and at least 65% of its
total assets in equity securities of Mid-Cap Companies with public stock
market capitalizations (based upon shares available for trading on an
unrestricted basis) within the range of the market capitalization of companies
constituting the Russell Midcap Index at the time of investment (currently
between $400 million and $16 billion). If the capitalization of an issuer
increases above $16 billion after purchase of such issuer's securities, the
Fund may, but is not required to, sell the securities. Dividend income, if
any, is an incidental consideration.
 
  Other. The Fund may invest up to 35% of its total assets in fixed-income
securities. In addition, although the Fund will invest primarily in publicly
traded U.S. securities, it may invest up to 25% of its total assets in foreign
securities, including securities of issuers in Emerging Countries and
securities quoted in foreign currencies.
 
 SMALL CAP VALUE FUND (FORMERLY, THE "SMALL CAP EQUITY FUND")
 
 
  Objective. The Fund's investment objective is to provide investors with
long-term capital growth.
 
  Primary Investment Focus. The Fund invests, under normal circumstances, at
least 65% of its total assets in equity securities of companies with public
stock market capitalizations of $1 billion or less at the time of investment.
Under normal circumstances, the Fund's investment horizon for ownership of
stocks will be two to three years. Dividend income, if any, is an incidental
consideration. If the market capitalization of a company held by the Fund
increases above the amount stated above, the Fund may, consistent with its
investment objective, continue to hold the security.
 
  Small Capitalization Companies. The Fund invests in companies which the
Investment Adviser believes are well managed niche businesses that have the
potential to achieve high or improving returns on capital and/or above average
sustainable growth. The Fund may invest in securities of small market
capitalization companies which may have experienced financial difficulties.
Investments may also be made in companies that are in the early stages of
their life and that the Investment Adviser believes have significant growth
potential. The Investment Adviser believes that the companies in which the
Fund may invest offer greater opportunity for growth of capital than larger,
more mature, better known companies. However, investments in such small market
capitalization companies involve special risks. See "Description of
Securities" and "Risk Factors."
 
  Other. The Fund may invest in the aggregate up to 35% of its total assets in
the equity securities of companies with public stock market capitalizations in
excess of $1 billion at the time of investment and in fixed- income
securities. In addition, although the Fund will invest primarily in publicly
traded U.S. securities, it may invest up to 25% of its total assets in foreign
securities, including securities of issuers in Emerging Countries and
securities quoted in foreign currencies.
 
 
                           DESCRIPTION OF SECURITIES
 
 
  The Funds may invest in equity and fixed-income securities in accordance
with the investment policies stated above. Certain of these permitted
investments are described in more detail in this section.
 
                                      22
<PAGE>
 
CONVERTIBLE SECURITIES
 
  Each Fund may invest in convertible securities, including debt obligations
and preferred stock of the issuer convertible at a stated exchange rate into
common stock of the issuer. Convertible securities generally offer lower
interest or dividend yields than non-convertible securities of similar
quality. As with all fixed-income securities, the market value of convertible
securities tends to decline as interest rates increase and, conversely, to
increase as interest rates decline. However, when the market price of the
common stock underlying a convertible security exceeds the conversion price,
the convertible security tends to reflect the market price of the underlying
common stock. As the market price of the underlying common stock declines, the
convertible security tends to trade increasingly on a yield basis, and thus
may not decline in price to the same extent as the underlying common stock.
Convertible securities rank senior to common stocks in an issuer's capital
structure and consequently entail less risk than the issuer's common stock. In
evaluating a convertible security, the Investment Adviser will give primary
emphasis to the attractiveness of the underlying common stock. The convertible
debt securities in which the Balanced Fund invests will be rated, at the time
of investment, B or better by Standard & Poor's Ratings Group ("Standard &
Poor's") or Moody's Investors Service, Inc. ("Moody's"), or if unrated by such
rating organizations, determined to be of comparable quality by the Investment
Adviser. The convertible securities in which the CORE Funds invest are not
subject to any minimum rating criteria. The convertible debt securities in
which the other Funds may invest are subject to the same rating criteria as a
Fund's investments in non-convertible debt securities. Convertible debt
securities are equity investments for purposes of each Fund's investment
policies.
 
FOREIGN INVESTMENTS
 
  FOREIGN SECURITIES. Each Fund may invest in the securities of foreign
issuers (provided that the CORE Funds may only invest in equity securities of
foreign issuers that are traded in the U.S.). Investments in foreign
securities may offer potential benefits that are not available from
investments exclusively in equity securities of domestic issuers quoted in
U.S. dollars. Foreign countries may have economic policies or business cycles
different from those of the U.S. and markets for foreign securities do not
necessarily move in a manner parallel to U.S. markets.
 
  Investing in the securities of foreign issuers involves certain special
risks, including those set forth below, which are not typically associated
with investing in U.S. dollar denominated or quoted securities of U.S.
issuers. Such investments may be affected by changes in currency rates,
changes in foreign or U.S. laws or restrictions applicable to such investments
and in exchange control regulations (e.g., currency blockage). A decline in
the exchange rate of the currency (i.e., weakening of the currency against the
U.S. dollar) in which a portfolio security is quoted or denominated relative
to the U.S. dollar would reduce the value of the portfolio security. In
addition, if the currency in which a Fund receives dividends, interest or
other payments declines in value against the U.S. dollar before such income is
distributed as dividends to shareholders or converted to U.S. dollars, the
Fund may have to sell portfolio securities to obtain sufficient cash to pay
such dividends. The introduction of a single currency, the euro, on January 1,
1999 for participating European nations in the Economic and Monetary Union
("EU") presents unique uncertainties, including whether the payment and
operational systems of banks and other financial institutions will encounter
difficulties; the creation of suitable clearing and settlement payment systems
for the new currency; the legal treatment of certain outstanding financial
contracts after January 1, 1999 that refer to existing currencies rather than
the euro; the establishment and maintenance of exchange rates for currencies
being converted into the euro and the euro; the fluctuation of the euro
relative to non-euro currencies during the transition period from January 1,
1999 to December 31, 2001 and beyond; whether the interest rate, tax and labor
regimes of European countries participating in the euro will converge over
time; and whether the
 
                                      23
<PAGE>
 
conversion of the currencies of other EU countries such as the United Kingdom
and Denmark into the euro and the admission of other non-EU countries such as
Poland, Latvia and Lithuania as members of the EU may have an impact on the
euro. These or other factors, including political and economic risks, could
cause market disruptions before or after the introduction of the euro, and
could adversely affect the value of securities and foreign currencies held by
the Funds. Commissions on transactions in foreign securities may be higher
than those for similar transactions on domestic stock markets. In addition,
clearance and settlement procedures may be different in foreign countries and,
in certain markets, such procedures have been unable to keep pace with the
volume of securities transactions, thus making it difficult to conduct such
transactions.
 
  Foreign issuers are not generally subject to uniform accounting, auditing
and financial reporting standards comparable to those applicable to U.S.
issuers. There may be less publicly available information about a foreign
issuer than about a U.S. issuer. In addition, there is generally less
government regulation of foreign markets, companies and securities dealers
than in the United States. Foreign securities markets may have substantially
less volume than U.S. securities markets and securities of many foreign
issuers are less liquid and more volatile than securities of comparable
domestic issuers. Furthermore, with respect to certain foreign countries,
there is a possibility of nationalization, expropriation or confiscatory
taxation, imposition of withholding or other taxes on dividend or interest
payments (or, in some cases, capital gains), limitations on the removal of
funds or other assets of the Funds, political or social instability or
diplomatic developments which could affect investments in those countries.
 
  INVESTMENTS IN ADRS, EDRS AND GDRS. Each Fund may invest in foreign
securities which take the form of sponsored and unsponsored American
Depository Receipts ("ADRs") and Global Depository Receipts ("GDRs") and each
Fund, other than the CORE Funds, may also invest in European Depository
Receipts ("EDRs") or other similar instruments representing securities of
foreign issuers (together, "Depository Receipts"). ADRs represent the right to
receive securities of foreign issuers deposited in a domestic bank or a
correspondent bank. Prices of ADRs are quoted in U.S. dollars, and ADRs are
traded in the United States on exchanges or over-the-counter and are sponsored
and issued by domestic banks. EDRs and GDRs are receipts evidencing an
arrangement with a non-U.S. bank. EDRs and GDRs are not necessarily quoted in
the same currency as the underlying security. To the extent a Fund acquires
Depository Receipts through banks which do not have a contractual relationship
with the foreign issuer of the security underlying the Depository Receipts to
issue and service such Depository Receipts (unsponsored Depository Receipts),
there may be an increased possibility that the Fund would not become aware of
and be able to respond to corporate actions, such as stock splits or rights
offerings involving the foreign issuer, in a timely manner. In addition, the
lack of information may result in inefficiencies in the valuation of such
instruments. Investment in Depository Receipts does not eliminate all the
risks inherent in investing in securities of non-U.S. issuers. The market
value of Depository Receipts is dependent upon the market value of the
underlying securities and fluctuations in the relative value of the currencies
in which the Depository Receipt and the underlying securities are quoted.
However, by investing in Depository Receipts, such as ADRs, that are quoted in
U.S. dollars, a Fund may avoid currency risks during the settlement period for
purchases and sales.
 
  FOREIGN CURRENCY TRANSACTIONS. Because investment in foreign issuers will
usually involve currencies of foreign countries, and because the Balanced Fund
may have currency exposure independent of its securities positions, the value
of the assets of a Fund as measured in U.S. dollars will be affected by
changes in foreign currency exchange rates. A Fund may, to the extent it
invests in foreign securities, purchase or sell foreign currencies on a spot
basis and may also purchase or sell forward foreign currency exchange
contracts for hedging
 
                                      24
<PAGE>
 
purposes and to seek to protect against anticipated changes in future foreign
currency exchange rates. In addition, the Balanced Fund may enter into such
contracts to seek to increase total return when the Investment Adviser
anticipates that the foreign currency will appreciate or depreciate in value,
but securities denominated or quoted in that currency do not present
attractive investment opportunities and are not held in the Fund's portfolio.
When entered into to seek to enhance return, forward foreign currency exchange
contracts are considered speculative. The Balanced Fund may also engage in
cross-hedging by using forward contracts in a currency different from that in
which the hedged security is denominated or quoted if the Investment Adviser
determines that there is a pattern of correlation between the two currencies.
If a Fund enters into a forward foreign currency exchange contract to buy
foreign currency for any purpose or the Balanced Fund enter into forward
foreign currency exchange contracts to sell foreign currency to seek to
increase total return, the Fund will segregate cash or liquid assets in an
amount equal to the value of the Fund's total assets committed to the
consummation of the forward contract, or otherwise cover its position in a
manner permitted by the SEC. The Fund will incur costs in connection with
conversions between various currencies. A Fund may hold foreign currency
received in connection with investments in foreign securities when, in the
judgment of the Investment Adviser, it would be beneficial to convert such
currency into U.S. dollars at a later date, based on anticipated changes in
the relevant exchange rate.
 
  Currency exchange rates may fluctuate significantly over short periods of
time causing, along with other factors, a Fund's NAV to fluctuate. Currency
exchange rates generally are determined by the forces of supply and demand in
the foreign exchange markets and the relative merits of investments in
different countries, actual or anticipated changes in interest rates and other
complex factors, as seen from an international perspective. Currency exchange
rates also can be affected unpredictably by the intervention of U.S. or
foreign governments or central banks, or the failure to intervene, or by
currency controls or political developments in the U.S. or abroad. To the
extent that a substantial portion of a Fund's total assets, adjusted to
reflect the Fund's net position after giving effect to currency transactions,
is denominated or quoted in the currencies of foreign countries, the Fund will
be more susceptible to the risk of adverse economic and political developments
within those countries.
 
  The market in forward foreign currency exchange contracts, currency swaps
and other privately negotiated currency instruments offers less protection
against defaults by the other party to such instruments than is available for
currency instruments traded on an exchange. Such contracts are subject to the
risk that the counterparty to the contract will default on its obligations.
Since these contracts are not guaranteed by an exchange or clearinghouse, a
default on the contract would deprive the Fund of unrealized profits,
transaction costs or the benefits of a currency hedge or force the Fund to
cover its purchase or sale commitments, if any, at the current market price. A
Fund will not enter into forward foreign currency exchange contracts, currency
swaps or other privately negotiated currency instruments unless the credit
quality of the unsecured senior debt or the claims-paying ability of the
counterparty is considered to be investment grade by the Investment Adviser.
 
  The Balanced Fund may also engage in a variety of foreign currency
management techniques. For a discussion of such instruments and the risks
associated with their use, see "Investment Objective and Policies" in the
Additional Statement.
 
FIXED-INCOME SECURITIES
 
  U.S. GOVERNMENT SECURITIES. Each Fund may invest in U.S. Government
securities. Generally, these securities include U.S. Treasury obligations and
obligations issued or guaranteed by U.S. Government agencies,
instrumentalities or sponsored enterprises. U.S. Government securities also
include Treasury receipts and other
 
                                      25
<PAGE>
 
stripped U.S. Government securities, where the interest and principal
components of stripped U.S. Government securities are traded independently. A
Fund may also invest in zero coupon U.S. Treasury securities and in zero
coupon securities issued by financial institutions, which represent a
proportionate interest in underlying U.S. Treasury securities. A zero coupon
security pays no interest to its holder during its life and its value consists
of the difference between its face value at maturity and its cost. The market
prices of zero coupon securities generally are more volatile than the market
prices of securities that pay interest periodically. See "Taxation" in the
Additional Statement.
 
  FOREIGN GOVERNMENT SECURITIES. The Balanced Fund may invest in debt
obligations of foreign governments and governmental agencies, including those
of Emerging Countries. Investment in sovereign debt obligations involves
special risks not present in debt obligations of corporate issuers. The issuer
of the debt or the governmental authorities that control the repayment of the
debt may be unable or unwilling to repay principal or interest when due in
accordance with the terms of such debt, and the Fund may have limited recourse
in the event of a default. Periods of economic uncertainty may result in the
volatility of market prices of sovereign debt, and in turn the Fund's NAV, to
a greater extent than the volatility inherent in debt obligations of U.S.
issuers. A sovereign debtor's willingness or ability to repay principal and
pay interest in a timely manner may be affected by, among other factors, its
cash flow situation, the extent of its foreign currency reserves, the
availability of sufficient foreign exchange on the date a payment is due, the
relative size of the debt service burden to the economy as a whole, the
sovereign debtor's policy toward international lenders and the political
constraints to which a sovereign debtor may be subject.
 
  MORTGAGE-BACKED AND ASSET-BACKED SECURITIES. Each Fund (other than the CORE
Funds) may invest in mortgage-backed securities ("Mortgage-Backed
Securities"), which represent direct or indirect participations in, or are
collateralized by and payable from, mortgage loans secured by real property.
Each Fund (other than the CORE Funds) may also invest in asset-backed
securities ("Asset-Backed Securities"). The principal and interest payments on
Asset-Backed Securities are collateralized by pools of assets such as auto
loans, credit card receivables, leases, installment contracts and personal
property. Such asset pools are securitized through the use of special purpose
trusts or corporations. Principal and interest payments may be credit enhanced
by a letter of credit, a pool insurance policy or a senior/subordinated
structure.
 
  The Balanced Fund may also invest in stripped Mortgage-Backed Securities
("SMBS") (including interest only and principal only securities), which are
derivative multiple class Mortgage-Backed Securities. SMBS are usually
structured with two different classes: one that receives 100% of the interest
payments and the other that receives 100% of the principal payments from a
pool of mortgage loans. If the underlying mortgage loans experience different
than anticipated prepayments of principal, the Fund may fail to recoup fully
its initial investment in these securities. The market value of the class
consisting entirely of principal payments generally is unusually volatile in
response to changes in interest rates. The yields on a class of SMBS that
receives all or most of the interest from mortgage loans are generally higher
than prevailing market yields on other Mortgage-Backed Securities because
their cash flow patterns are more volatile and there is a greater risk that
the initial investment will not be fully recouped. The Fund's investments in
SMBS may require the Fund to sell portfolio securities to generate sufficient
cash to satisfy certain income distribution requirements.
 
  CORPORATE DEBT OBLIGATIONS. Each Fund may invest in corporate debt
obligations. Corporate debt obligations are subject to the risk of an issuer's
inability to meet principal and interest payments on the obligations.
 
 
                                      26
<PAGE>
 
  BANK OBLIGATIONS. Each Fund may invest in obligations issued or guaranteed
by U.S. or foreign banks. Bank obligations, including without limitations,
time deposits, bankers' acceptances and certificates of deposit, may be
general obligations of the parent bank or may be limited to the issuing branch
by the terms of the specific obligations or by government regulation. Banks
are subject to extensive but different governmental regulations which may
limit both the amount and types of loans which may be made and interest rates
which may be charged. In addition, the profitability of the banking industry
is largely dependent upon the availability and cost of funds for the purpose
of financing lending operations under prevailing money market conditions.
General economic conditions as well as exposure to credit losses arising from
possible financial difficulties of borrowers play an important part in the
operation of this industry.
 
  STRUCTURED SECURITIES. Each Fund may invest in structured securities. The
value of the principal of and/or interest on such securities is determined by
reference to changes in the value of specific currencies, interest rates,
commodities, indices or other financial indicators (the "Reference") or the
relative change in two or more References. The interest rate or the principal
amount payable upon maturity or redemption may be increased or decreased
depending upon changes in the applicable Reference. The terms of the
structured securities may provide that in certain circumstances no principal
is due at maturity and, therefore, result in the loss of a Fund's investment.
Structured securities may be positively or negatively indexed, so that
appreciation of the Reference may produce an increase or decrease in the
interest rate or value of the security at maturity. In addition, changes in
the interest rates or the value of the security at maturity may be a multiple
of changes in the value of the Reference. Consequently, structured securities
may entail a greater degree of market risk than other types of fixed-income
securities. Structured securities may also be more volatile, less liquid and
more difficult to price accurately than less complex securities.
 
  RATING CRITERIA. Except as noted below, each Fund (other than the CORE
Funds, which only invest in debt instruments that are cash equivalents) may
invest in debt securities rated at least investment grade at the time of
investment. Investment grade debt securities are securities rated BBB or
higher by Standard & Poor's or Baa or higher by Moody's. A security will be
deemed to have met a rating requirement if it receives the minimum required
rating from at least one such rating organization even though it has been
rated below the minimum rating by one or more other rating organizations, or
if unrated by such rating organizations, determined by the Investment Adviser
to be of comparable credit quality. The Balanced Fund may invest up to 10% of
its total assets on debt securities that are rated BB or B by Standard &
Poor's or Ba or B by Moody's. The Growth and Income, Capital Growth and Small
Cap Value Funds may invest up to 10%, 10% and 35%, respectively, of their
total assets in debt securities which are unrated or rated in the lowest
rating categories by Standard & Poor's or Moody's (i.e., BB or lower by
Standard & Poor's or Ba or lower by Moody's), including securities rated D by
Moody's or Standard & Poor's. Mid Cap Equity Fund may invest up to 10% of its
total assets in below investment grade debt securities rated B or higher by
Standard & Poor's or B or higher by Moody's. Fixed-income securities rated BBB
or Baa are considered medium-grade obligations with speculative
characteristics, and adverse economic conditions or changing circumstances may
weaken their issuers' capacity to pay interest and repay principal. Fixed-
income securities rated BB or Ba or below (or comparable unrated securities)
are commonly referred to as "junk bonds," are considered predominately
speculative and may be questionable as to principal and interest payments. In
some cases, such bonds may be highly speculative, have poor prospects for
reaching investment grade standing and be in default. As a result, investment
in such bonds will entail greater speculative risks than those associated with
investment in investment grade bonds. Also, to the extent that the rating
assigned to a security in a Fund's portfolio is downgraded by a rating
organization, the market price and liquidity of such security may be adversely
affected. See Appendix A to the Additional Statement for a description of the
corporate bond ratings assigned by Standard & Poor's and Moody's.
 
                                      27
<PAGE>
 
REAL ESTATE INVESTMENT TRUSTS ("REITS")
 
  Each Fund may invest in REITs, which are pooled investment vehicles that
invest primarily in either real estate or real estate related loans. The value
of a REIT is affected by changes in the value of the properties owned by the
REIT or securing mortgage loans held by the REIT. REITs are dependent upon
cash flow from their investments to repay financing costs and the ability of
the REITs' manager. REITs are also subject to risks generally associated with
investments in real estate. A Fund will indirectly bear its proportionate
share of any expenses, including management fees, paid by a REIT in which it
invests.
 
 
                             INVESTMENT TECHNIQUES
 
 
OPTIONS ON SECURITIES AND SECURITIES INDICES
 
  Each Fund (other than the CORE Large Cap Value, CORE U.S. Equity and CORE
Large Cap Growth Funds) may write (sell) covered call and put options and
purchase call and put options on any securities in which it may invest or on
any securities index composed of securities in which it may invest. The
writing and purchase of options is a highly specialized activity which
involves investment techniques and risks different from those associated with
ordinary portfolio securities transactions. The use of options to seek to
increase total return involves the risk of loss if the Investment Adviser is
incorrect in its expectation of fluctuations in securities prices or interest
rates. The successful use of options for hedging purposes also depends in part
on the ability of the Investment Adviser to manage future price fluctuations
and the degree of correlation between the options and securities markets. If
the Investment Adviser is incorrect in its expectation of changes in
securities prices or determination of the correlation between the securities
indices on which options are written and purchased and the securities in a
Fund's investment portfolio, the investment performance of the Fund will be
less favorable than it would have been in the absence of such options
transactions. The writing of options could significantly increase a Fund's
portfolio turnover rate and, therefore, associated brokerage commissions or
spreads.
 
OPTIONS ON FOREIGN CURRENCIES
 
  A Fund may, to the extent it invests in foreign securities, purchase and
sell (write) call and put options on foreign currencies for the purpose of
protecting against declines in the U.S. dollar value of foreign portfolio
securities and anticipated dividends on such securities and against increases
in the U.S. dollar cost of foreign securities to be acquired. In addition, the
Balanced Fund may use options on currency to cross-hedge, which involves
writing or purchasing options on one currency to hedge against changes in
exchange rates for a different currency, if there is a pattern of correlation
between the two currencies. As with other kinds of options transactions,
however, the writing of an option on a foreign currency will constitute only a
partial hedge, up to the amount of the premium received. If an option that a
Fund has written is exercised, the Fund could be required to purchase or sell
foreign currencies at disadvantageous exchange rates, thereby incurring
losses. The purchase of an option on foreign currency may constitute an
effective hedge against exchange rate fluctuations; however, in the event of
exchange rate movements adverse to a Fund's position, the Fund may forfeit the
entire amount of the premium plus related transaction costs. In addition to
purchasing call and put options for hedging purposes, the Balanced Fund may
purchase call or put options on currency to seek to increase total return when
the Investment Adviser anticipates that the currency will appreciate or
depreciate in value, but the securities quoted or denominated in that currency
do not present attractive investment opportunities and are not held in the
Fund's portfolio. When purchased or sold to seek to increase total return,
options on currencies are considered speculative. Options on foreign
currencies written or purchased by the Funds are traded on U.S. and foreign
exchanges or over-the-counter.
 
                                      28
<PAGE>
 
FUTURES CONTRACTS AND OPTIONS ON FUTURES CONTRACTS
 
  To seek to increase total return or to hedge against changes in interest
rates, securities prices or currency exchange rates, a Fund may purchase and
sell various kinds of futures contracts, and purchase and write call and put
options on any of such futures contracts. Each Fund may also enter into
closing purchase and sale transactions with respect to any such contracts and
options. The futures contracts may be based on various securities (such as
U.S. Government securities), foreign currencies, securities indices and other
financial instruments and indices. The CORE Large Cap Value, CORE U.S. Equity
and CORE Large Cap Growth Funds may enter into such transactions only with
respect to the S&P 500 Index in the case of the CORE U.S. Equity Fund and a
representative index in the case of the CORE Large Cap Value and CORE Large
Cap Growth Funds. A Fund will engage in futures and related options
transactions for bona fide hedging purposes as defined in regulations of the
Commodity Futures Trading Commission or to seek to increase total return to
the extent permitted by such regulations. A Fund may not purchase or sell
futures contracts or purchase or sell related options to seek to increase
total return, except for closing purchase or sale transactions, if immediately
thereafter the sum of the amount of initial margin deposits and premiums paid
on the Fund's outstanding positions in futures and related options entered
into for the purpose of seeking to increase total return would exceed 5% of
the market value of the Fund's net assets. These transactions involve
brokerage costs, require margin deposits and, in the case of contracts and
options obligating a Fund to purchase securities or currencies, require the
Fund to segregate and maintain cash or liquid assets with a value equal to the
amount of the Fund's obligations or to otherwise cover the obligations in a
manner permitted by the SEC.
 
  While transactions in futures contracts and options on futures may reduce
certain risks, such transactions themselves entail certain other risks. See
"Investment Objectives and Policies--Futures Contracts and Options on Future
Contracts" in the Additional Statement. Thus, while a Fund may benefit from
the use of futures and options on futures, unanticipated changes in interest
rates, securities prices or currency exchange rates may result in poorer
overall performance than if the Fund had not entered into any futures
contracts or options transactions. Because perfect correlation between a
futures position and portfolio position that is intended to be protected is
impossible to achieve, the desired protection may not be obtained and a Fund
may be exposed to risk of loss. The loss incurred by a Fund in entering into
futures contracts and in writing call options on futures is potentially
unlimited and may exceed the amount of the premium received. Futures markets
are highly volatile and the use of futures may increase the volatility of a
Fund's NAV. The profitability of a Fund's trading in futures to seek to
increase total return depends upon the ability of the Investment Adviser to
analyze correctly the futures markets. In addition, because of the low margin
deposits normally required in futures trading, a relatively small price
movement in a futures contract may result in substantial losses to a Fund.
Further, futures contracts and options on futures may be illiquid, and
exchanges may limit fluctuations in futures contract prices during a single
day. The Funds may engage in futures transactions on both U.S. and foreign
exchanges. Foreign exchanges may not provide the same protection as U.S.
exchanges.
 
STANDARD AND POOR'S DEPOSITORY RECEIPTS
 
  Each Fund may, consistent with its objectives, purchase Standard & Poor's
Depository Receipts ("SPDRs"). SPDRs are American Stock Exchange-traded
securities that represent ownership in the SPDR Trust, a trust which has been
established to accumulate and hold a portfolio of common stocks that is
intended to track the price performance and dividend yield of the S&P 500.
This trust is sponsored by a subsidiary of the American Stock Exchange. SPDRs
may be used for several reasons, including but not limited to: facilitating
the handling of cash flows or trading, or reducing transaction costs. The use
of SPDRs would introduce additional risk to the
 
                                      29
<PAGE>
 
Fund as the price movement of the instrument does not perfectly correlate with
the price action of the underlying index.
 
EQUITY SWAPS
 
  Each Fund may invest up to 10% of its total assets in equity swaps. Equity
swaps allow the parties to a swap agreement to exchange the dividend income or
other components of return on an equity investment (e.g., a group of equity
securities or an index) for a component of return on another non-equity or
equity investment. An equity swap may be used by a Fund to invest in a market
without owning or taking physical custody of securities in circumstances in
which direct investment may be restricted for legal reasons or is otherwise
impractical. Equity swaps are derivatives and their value can be very
volatile. To the extent that the Investment Adviser does not accurately
analyze and predict the potential relative fluctuation of the components
swapped with another party, a Fund may suffer a loss. The value of some
components of an equity swap (such as the dividends on a common stock) may
also be sensitive to changes in interest rates. Furthermore, during the period
a swap is outstanding, a Fund may suffer a loss if the counterparty defaults.
In connection with its investments in equity swaps, a Fund will either
segregate cash or liquid assets or otherwise cover its obligations in a manner
required by the SEC.
 
WHEN-ISSUED SECURITIES AND FORWARD COMMITMENTS
 
  Each Fund may purchase when-issued securities. When-issued transactions
arise when securities are purchased by a Fund with payment and delivery taking
place in the future in order to secure what is considered to be an
advantageous price and yield to the Fund at the time of entering into the
transaction. Each Fund may also purchase or sell securities on a forward
commitment basis; that is, make contracts to purchase or sell securities for a
fixed price at a future date beyond the customary three-day settlement period.
The purchase of securities on a when-issued or forward commitment basis
involves a risk of loss if the value of the security to be purchased declines
prior to the settlement date. Conversely, securities sold on a forward
commitment basis involve the risk that the value of the securities to be sold
may increase prior to the settlement date. Although a Fund would generally
purchase securities on a when-issued or forward commitment basis with the
intention of acquiring securities for its portfolio, a Fund may dispose of
when-issued securities or forward commitments prior to settlement if the
Investment Adviser deems it appropriate to do so. A Fund will segregate cash
or liquid assets in an amount sufficient to meet the purchase price until
three days prior to the settlement date. Alternatively, each Fund may enter
into offsetting contracts for the forward sale of other securities that it
owns.
 
ILLIQUID AND RESTRICTED SECURITIES
 
  A Fund will not invest more than 15% of its net assets in illiquid
investments, which include securities (both foreign and domestic) that are not
readily marketable, certain SMBS, repurchase agreements maturing in more than
seven days, time deposits with a notice or demand period of more than seven
days, certain over-the-counter options and certain restricted securities,
unless it is determined, based upon a review of the trading markets for a
specific restricted security, that such restricted security is eligible for
resale under Rule 144A under the Securities Act of 1933 and, therefore, is
liquid. The Trustees have adopted guidelines under which the Investment
Adviser determines and monitors the liquidity of portfolio securities, subject
to the oversight of the Trustees. Investing in restricted securities eligible
for resale pursuant to Rule 144A may decrease the liquidity of a Fund's
portfolio to the extent that qualified institutional buyers become for a time
uninterested in purchasing these restricted securities. The purchase price and
subsequent valuation of restricted and illiquid securities normally reflect a
discount, which may be significant, from the market price of comparable
securities for which a liquid market exists.
 
                                      30
<PAGE>
 
REPURCHASE AGREEMENTS
 
  Each Fund may enter into repurchase agreements with dealers in U.S.
Government securities and member banks of the Federal Reserve System which
furnish collateral at least equal in value or market price to the amount of
their repurchase obligation. The Balanced Fund may also enter into repurchase
agreements involving certain foreign government securities. If the other party
or "seller" defaults, a Fund might suffer a loss to the extent that the
proceeds from the sale of the underlying securities and other collateral held
by the Fund in connection with the related repurchase agreement are less than
the repurchase price. In addition, in the event of bankruptcy of the seller or
failure of the seller to repurchase the securities as agreed, a Fund could
suffer losses, including loss of interest on or principal of the security and
costs associated with delay and enforcement of the repurchase agreement. The
Trustees have reviewed and approved certain counterparties whom they believe
to be creditworthy and have authorized the Funds to enter into repurchase
agreements with such counterparties. In addition, each Fund, together with
other registered investment companies having management agreements with an
Investment Adviser or its affiliates, may transfer uninvested cash balances
into a single joint account, the daily aggregate balance of which will be
invested in one or more repurchase agreements.
 
LENDING OF PORTFOLIO SECURITIES
 
  Each Fund may also seek to increase its income by lending portfolio
securities. Under present regulatory policies, such loans may be made to
institutions, such as certain broker-dealers, and are required to be secured
continuously by collateral in cash, cash equivalents, or U.S. Government
securities maintained on a current basis in an amount at least equal to the
market value of the securities loaned. Cash collateral may be invested in cash
equivalents. If the Investment Adviser determines to make securities loans,
the value of the securities loaned may not exceed 33 1/3% of the value of the
total assets of a Fund (including the loan collateral). A Fund may experience
a loss or delay in the recovery of its securities if the institution with
which it has engaged in a portfolio loan transaction breaches its agreement
with the Fund.
 
MORTGAGE DOLLAR ROLLS
 
  The Balanced Fund may enter into mortgage "dollar rolls" in which the Fund
sells securities for delivery in the current month and simultaneously
contracts with the same counterparty to repurchase substantially similar (same
type, coupon and maturity) but not identical securities on a specified future
date. During the roll period, the Fund loses the right to receive principal
and interest paid on the securities sold. However, the Fund would benefit to
the extent of any difference between the price received for the securities
sold and the lower forward price for the future purchase or fee income plus
the interest earned on the cash proceeds of the securities sold until the
settlement date for the forward purchase. Unless such benefits exceed the
income, capital appreciation and gain or loss due to mortgage prepayments that
would have been realized on the securities sold as part of the mortgage dollar
roll, the use of this technique will diminish the investment performance of
the Fund. The Fund will segregate cash or liquid assets in an amount equal to
the forward purchase price until the settlement date. Successful use of
mortgage dollar rolls depends upon the Investment Adviser's ability to predict
correctly interest rates and mortgage prepayments. There is no assurance that
mortgage dollar rolls can be successfully employed. For financial reporting
and tax purposes, the Fund treats mortgage dollar rolls as two separate
transactions: one involving the purchase of a security and a separate
transaction involving a sale. The Fund does not currently intend to enter into
mortgage dollar rolls that are accounted for as a financing.
 
SHORT SALES AGAINST-THE-BOX
 
  Each Fund (other than the CORE Funds) may make short sales of securities or
maintain a short position, provided that at all times when a short position is
open the Fund owns an equal amount of such securities or
 
                                      31
<PAGE>
 
securities convertible into or exchangeable for, without payment of any
further consideration, an equal amount of the securities of the same issuer as
the securities sold short (a short sale against-the-box). Not more than 25% of
a Fund's net assets (determined at the time of the short sale) may be subject
to such short sales. As a result of recent tax legislation, short sales may
not generally be used to defer the recognition of gain for tax purposes with
respect to appreciated securities in a Fund's portfolio.
 
TEMPORARY INVESTMENTS
 
  Each Fund may, for temporary defensive purposes, invest 100% of its total
assets (except that the CORE Funds may only hold up to 35% of their respective
total assets) in U.S. Government securities, repurchase agreements
collateralized by U.S. Government securities, commercial paper rated at least
A-2 by Standard & Poor's or P-2 by Moody's, certificates of deposit, bankers'
acceptances, repurchase agreements, non-convertible preferred stocks and non-
convertible corporate bonds with a remaining maturity of less than one year.
When a Fund's assets are invested in such instruments, the Fund may not be
achieving its investment objective.
 
MISCELLANEOUS TECHNIQUES
 
  In addition to the techniques and investments described above, each Fund
may, with respect to no more than 5% of its net assets, engage in the
following techniques and investments: (i) warrants and stock purchase rights;
(ii) currency swaps (Balanced Fund only); (iii) credit swaps, mortgage swaps,
index swaps and interest rate swaps, caps, floors and collars (Balanced Fund
only); (iv) yield curve options and inverse floating rate securities (Balanced
Fund only); (v) other investment companies including World Equity Benchmark
Shares; (vi) unseasoned companies; (vii) municipal securities (Balanced Fund
only); (viii) loan participations (Balanced Fund only); (ix) custodial
receipts; and (x) reverse repurchase agreements for investment purposes
(Balanced Fund only).
 
  In addition, each Fund may borrow up to 33 1/3% of its total assets from
banks for temporary or emergency purposes. A Fund may not make additional
investments if borrowings (excluding covered mortgage dollar rolls) exceed 5%
of its total assets. For more information see the Additional Statement.
 
 
                                 RISK FACTORS
 
  Risks of Investing in Equity Securities. In general, the Funds are subject
to the risks associated with investments in common stocks and other equity
securities. Stock values fluctuate in response to the activities of individual
companies and in response to general market and economic conditions and,
accordingly, the value of the stocks that a Fund holds may decline over short
or extended periods. The U.S. stock markets tend to be cyclical, with periods
when stock prices generally rise and periods when prices generally decline. As
of the date of this Prospectus, domestic stock markets were trading at or
close to record high levels and there can be no guarantee that such levels
will continue.
 
  RISKS OF INVESTING IN SMALL CAPITALIZATION COMPANIES. Investing in the
securities of such companies involves greater risk and the possibility of
greater portfolio price volatility. Historically, small market capitalization
stocks and stocks of recently organized companies have been more volatile in
price than the larger market capitalization stocks. Among the reasons for the
greater price volatility of these small company and
 
                                      32
<PAGE>
 
unseasoned stocks are the less certain growth prospects of smaller firms and
the lower degree of liquidity in the markets for such stocks.
 
  SPECIAL RISKS OF INVESTMENTS IN EMERGING MARKETS. Investing in the
securities of issuers in Emerging Countries involves risks in addition to
those discussed under "Description of Securities-- Foreign Investments." The
Growth and Income, Mid Cap Equity and Small Cap Value Funds may each invest up
to 25%, the Balanced Fund may invest up to 20% and the Capital Growth Fund may
invest up to 10% of their respective total assets in securities of issuers in
Emerging Countries. Emerging Countries are generally located in the Asia-
Pacific region, Eastern Europe, Latin and South America and Africa.
 
  Foreign investment in the securities markets of certain Emerging Countries
is restricted or controlled to varying degrees which may limit investment in
such countries or increase the administrative costs of such investments.
Certain countries may restrict or prohibit investment opportunities in issuers
or industries deemed important to national interests. Such restrictions may
affect the market price, liquidity and rights of securities that may be
purchased by a Fund. The repatriation of both investment income and capital
from certain Emerging Countries is subject to restrictions such as the need
for governmental consents. Many Emerging Countries may be subject to a greater
degree of economic, political and social instability than is the case in
Western Europe, the United States, Canada, Australia, New Zealand and Japan.
Many Emerging Countries do not have fully democratic governments. For example,
governments of some Emerging Countries are authoritarian in nature or have
been installed or removed as a result of military coups, while governments in
other Emerging Countries have periodically used force to suppress civil
dissent. Many Emerging Countries have experienced currency devaluations and
substantial and, in some cases, extremely high rates of inflation, which have
a negative effect on the economies and securities markets of such Emerging
Countries. Settlement procedures in Emerging Countries are frequently less
developed and reliable than those in the United States and may involve a
Fund's delivery of securities before receipt of payment for their sale. In
addition, significant delays are common in certain markets in registering the
transfer of securities. Settlement or registration problems may make it more
difficult for a Fund to value its portfolio securities and could cause the
Fund to miss attractive investment opportunities, to have a portion of its
assets uninvested or to incur losses due to the failure of a counterparty to
pay for securities the Fund has delivered or the Fund's inability to complete
its contractual obligations.
 
  RISKS OF INVESTING IN FIXED-INCOME SECURITIES. When interest rates decline,
the market value of fixed-income securities tends to increase. Conversely,
when interest rates increase, the market value of fixed-income securities
tends to decline. Volatility of a security's market value will differ
depending upon the security's duration, the issuer and the type of instrument.
Investments in fixed-income securities are subject to the risk that the issuer
could default on its obligations and a Fund could sustain losses on such
investments. A default could impact both interest and principal payments.
 
  RISKS OF DERIVATIVE TRANSACTIONS. A Fund's transactions, if any, in options,
futures, options on futures, swaps, structured securities and currency
transactions involve certain risks, including a possible lack of correlation
between changes in the value of hedging instruments and the portfolio assets
(if any) being hedged, the potential illiquidity of the markets for derivative
instruments, the risks arising from margin requirements and related leverage
factors associated with such transactions. The use of these management
techniques to seek to increase total return may be regarded as a speculative
practice and involves the risk of loss if the Investment Adviser is incorrect
in its expectation of fluctuations in securities prices, interest rates or
currency prices. A Fund's use of certain derivative transactions may be
limited by the requirements of the Internal Revenue Code of 1986, as amended
(the "Code"), for qualification as a regulated investment company.
 
 
                                      33
<PAGE>
 
 
                            INVESTMENT RESTRICTIONS
 
  Each Fund is subject to certain investment restrictions that are described
in detail under "Investment Restrictions" in the Additional Statement.
Fundamental investment restrictions of a Fund cannot be changed without
approval of a majority of the outstanding Shares of that Fund as defined in
the Additional Statement. Each Fund's investment objectives and all policies
not specifically designated as fundamental are non-fundamental and may be
changed without shareholder approval. If there is a change in a Fund's
investment objectives, shareholders should consider whether that Fund remains
an appropriate investment in light of their then current financial positions
and needs.
 
 
                              PORTFOLIO TURNOVER
 
  A high rate of portfolio turnover (100% or more) involves correspondingly
greater expenses which must be borne by a Fund and its shareholders. See
"Financial Highlights" for a statement of each Fund's historical portfolio
turnover rate (other than the CORE Large Cap Value Fund). It is anticipated
that the annual portfolio turnover rate of the CORE Large Cap Value Fund will
generally not exceed 75%. The portfolio turnover rate is calculated by
dividing the lesser of the dollar amount of sales or purchases of portfolio
securities by the average monthly value of a Fund's portfolio securities,
excluding securities having a maturity at the date of purchase of one year or
less. The Investment Adviser will not consider the portfolio turnover rate a
limiting factor in making investment decisions for a Fund consistent with the
Fund's investment objectives and portfolio management policies.
 
 
                                  MANAGEMENT
 
TRUSTEES AND OFFICERS
 
  The Trustees are responsible for deciding matters of general policy and
reviewing the actions of the Investment Adviser, Distributor and transfer
agent. The officers of the Trust conduct and supervise the Funds' daily
business operations. The Additional Statement contains information as to the
identity of, and other information about, the Trustees and officers of the
Trust.
 
INVESTMENT ADVISERS
 
  INVESTMENT ADVISERS. Goldman Sachs Asset Management, One New York Plaza, New
York, New York 10004, a separate operating division of Goldman Sachs, serves
as investment adviser to the Balanced, Growth and Income, CORE Large Cap
Value, CORE Large Cap Growth, CORE Small Cap Equity, Mid Cap Equity and Small
Cap Value Funds. Goldman Sachs registered as an investment adviser in 1981.
Goldman Sachs Funds Management, L.P., One New York Plaza, New York, New York
10004, a Delaware limited partnership which is an affiliate of Goldman Sachs,
serves as the investment adviser to the CORE U.S. Equity and Capital Growth
Funds. Goldman Sachs Funds Management, L.P. registered as an investment
adviser in 1990. As of November 20, 1998, GSAM and GSFM together with their
affiliates, acted as investment adviser or distributor for assets in excess of
$188 billion.
 
 
                                      34
<PAGE>
 
  Under a Management Agreement with each Fund, the applicable Investment
Adviser, subject to the general supervision of the Trustees, provides day-to-
day advice as to the Fund's portfolio transactions. Goldman Sachs has agreed
to permit the Funds to use the name "Goldman Sachs" or a derivative thereof as
part of each Fund's name for as long as a Fund's Management Agreement is in
effect.
 
  In performing its investment advisory services, each Investment Adviser,
while remaining ultimately responsible for the management of the Funds, is
able to draw upon the research and expertise of its asset management
affiliates for portfolio decisions and management with respect to certain
portfolio securities. In addition, the Investment Adviser will have access to
the research of, and certain proprietary technical models developed by,
Goldman Sachs and may apply quantitative and qualitative analysis in
determining the appropriate allocations among the categories of issuers and
types of securities.
 
  Under the Management Agreement, the Investment Adviser also: (i) supervises
all non-advisory operations of each Fund that it advises; (ii) provides
personnel to perform such executive, administrative and clerical services as
are reasonably necessary to provide effective administration of each Fund;
(iii) arranges for at each Fund's expense (a) the preparation of all required
tax returns, (b) the preparation and submission of reports to existing
shareholders, (c) the periodic updating of prospectuses and Additional
Statements and (d) the preparation of reports to be filed with the SEC and
other regulatory authorities; (iv) maintains each Fund's records; and (v)
provides office space and all necessary office equipment and services.
 
  M. Roch Hillenbrand, a Managing Director of Goldman, Sachs & Co., is the
Head of Global Equities for Goldman Sachs Asset Management, overseeing U.S.,
Europe, Japan, and non-Japan Asia. In this capacity, he is responsible for
managing the group as it defines and implements global portfolio management
processes that are consistent, reliable and predictable. Roch is also
President of Commodities Corporation LLC, of which Goldman, Sachs & Co. is the
parent company. Over the course of his 18-year career at Commodities
Corporation, Roch has had extensive experience in dealing with internal and
external investment managers who have managed a range of futures and equities
strategies across multiple markets, using a variety of styles.
 
 FUND MANAGERS
 
<TABLE>
<CAPTION>
                                                YEARS
                                                PRIMARILY
       NAME AND TITLE       FUND RESPONSIBILITY RESPONSIBLE     FIVE YEAR EMPLOYMENT HISTORY
  ------------------------- ------------------- ----------- ----------------------------
  <C>                       <C>                 <C>         <S>
  George D. Adler           Senior                 Since      Mr. Adler joined the
   Vice President           Portfolio Manager--    1997       Investment Adviser in
                            Capital Growth         1998       1997. From 1990 to 1997,
                            Balanced (Equity)                 he was a portfolio
                                                              manager at Liberty
                                                              Investment Management,
                                                              Inc. From 1988 to 1990
                                                              he was a director of
                                                              portfolio management at
                                                              Banc One in Ohio.
- --------------------------------------------------------------------------------------------
  Eileen A. Aptman          Senior Portfolio       Since      Ms. Aptman joined the
   Vice President           Manager--              1996       Investment Adviser in
                            Mid Cap Equity         1997       1993. From 1990 to 1993,
                            Small Cap Value                   she worked at Delphi
                                                              Management as an equity
                                                              analyst, focusing her
                                                              research efforts on
                                                              value stocks.
- --------------------------------------------------------------------------------------------
  Jonathan A. Beinner       Senior Portfolio       Since      Mr. Beinner joined the
   Managing Director and    Manager--Balanced      1994       Investment Adviser in
   Co-Head U.S. Fixed       (Fixed-Income)                    1990. From 1988 to 1990,
   Income                                                     he worked as a portfolio
                                                              manager at Franklin
                                                              Savings Association in
                                                              the trading and
                                                              arbitrage group.
- --------------------------------------------------------------------------------------------
  Melissa Brown             Senior Portfolio       Since      Ms. Brown joined the
   Vice President           Manager--              1998       Investment Adviser in
                            CORE Large Cap         1998       1998. From 1984 to 1998,
                            Value CORE U.S.        1998       she was the director of
                            Equity                 1998       Quantitative Equity
                            CORE Large Cap                    Research and served on
                            Growth                            the Investment Policy
                            CORE Small Cap                    Committee at Prudential
                            Equity                            Securities.
</TABLE>
 
                                      35
<PAGE>
 
<TABLE>
<CAPTION>
                                                        YEARS
                                                        PRIMARILY
      NAME AND TITLE        FUND RESPONSIBILITY         RESPONSIBLE     FIVE YEAR EMPLOYMENT HISTORY
  ---------------------- --------------------------     ----------- ----------------------------
  <C>                    <C>                            <C>         <S>
  Kent A. Clark             Senior Portfolio Manager--     Since     Mr. Clark joined the
   Managing Director        CORE Large Cap Value CORE      1998      Investment Adviser in
                            U.S. Equity                    1996      1992.
                            CORE Large Cap Growth          1997
                            CORE Small Cap Equity          1997
- ----------------------------------------------------------------------------------------------------
  Robert G. Collins         Senior Portfolio Manager--     Since     Mr. Collins joined the
   Vice President           Capital Growth                 1997      Investment Adviser in
                            Balanced (Equity)              1998      1997. From 1991 to 1997,
                                                                     he was a portfolio manager
                                                                     at Liberty Investment
                                                                     Management, Inc. His past
                                                                     experiences include work
                                                                     as a special situations
                                                                     analyst with Raymond James
                                                                     & Associates for five
                                                                     years.
- ----------------------------------------------------------------------------------------------------
  Herbert E. Ehlers         Senior Portfolio Manager--     Since     Mr. Ehlers joined the
   Managing Director        Capital Growth                 1997      Investment Adviser in
                            Balanced (Equity)              1998      1997. From 1994 to 1997,
                                                                     he was the Chief
                                                                     Investment Officer and
                                                                     Chairman of Liberty
                                                                     Investment Management,
                                                                     Inc. He was a portfolio
                                                                     manager and president at
                                                                     Liberty's predecessor
                                                                     firm, Eagle Asset
                                                                     Management, from 1984 to
                                                                     1994.
- ----------------------------------------------------------------------------------------------------
  Gregory H. Ekizian        Senior Portfolio Manager--     Since     Mr. Ekizian joined the
   Vice President           Capital Growth                 1997      Investment Adviser in
                            Balanced (Equity)              1998      1997. From 1990 to 1997,
                                                                     he was a portfolio manager
                                                                     at Liberty Investment
                                                                     Management, Inc. and its
                                                                     predecessor firm, Eagle
                                                                     Asset Management.
- ----------------------------------------------------------------------------------------------------
  Paul D. Farrell           Senior Portfolio Manager--     Since     Mr. Farrell joined the
   Managing Director        Mid Cap Equity                 1998      Investment Adviser in
                            Small Cap Value                1992      1991. In 1998, he became
                                                                     responsible for managing
                                                                     the Investment Adviser's
                                                                     Value team. During 1991,
                                                                     he served as a managing
                                                                     director at Plaza
                                                                     Investment Managers, the
                                                                     investment subsidiary of
                                                                     GEICO Corp., a major
                                                                     insurance company. From
                                                                     1986 to 1991, he was
                                                                     employed by Goldman Sachs
                                                                     as a vice president in the
                                                                     investment research
                                                                     department and was
                                                                     responsible for the
                                                                     formation of the firm's
                                                                     Emerging Growth Research
                                                                     Group.
- ----------------------------------------------------------------------------------------------------
  Greg Gigliotti            Senior Portfolio Manager--     Since     Mr. Gigliotti joined the
   Vice President           Growth and Income              1998      Investment Adviser in
                            Balanced (Equity)              1998      1997. From 1996 to 1997 he
                            Mid Cap Equity                 1998      was a Vice President and
                                                                     senior analyst at Franklin
                                                                     Mutual Advisors, Inc., the
                                                                     asset management division
                                                                     of Franklin Resources,
                                                                     Inc. From 1989 to 1996 he
                                                                     was a Vice President and
                                                                     senior analyst at Heine
                                                                     Securities Corporation
                                                                     which was purchased by
                                                                     Franklin Resources, Inc.
- ----------------------------------------------------------------------------------------------------
  Robert C. Jones            Senior Portfolio Manager--    Since     Mr. Jones joined the
   Managing Director         CORE Large Cap Value CORE     1998      Investment Adviser in
                             U.S. Equity                   1991      1989. From 1987 to 1989,
                             CORE Large Cap Growth         1997      he was the senior
                             CORE Small Cap Equity         1997      quantitative analyst in
                                                                     the Goldman Sachs
                                                                     Investment Research
                                                                     Department and the author
                                                                     of the monthly Stock
                                                                     Selection publication.
- ----------------------------------------------------------------------------------------------------
  Richard C. Lucy            Senior Portfolio Manager--    Since     Mr. Lucy joined the
   Managing Director and     Balanced (Fixed-Income)       1994      Investment Adviser in
   Co-Head U.S.                                                      1992. From 1983 to 1992,
   Fixed Income                                                      he managed fixed income
                                                                     assets at Brown Brothers
                                                                     Harriman & Co.
</TABLE>
 
                                       36
<PAGE>
 
 
<TABLE>
<CAPTION>
                                                        YEARS
                                                        PRIMARILY
      NAME AND TITLE        FUND RESPONSIBILITY         RESPONSIBLE     FIVE YEAR EMPLOYMENT HISTORY
  ---------------------- --------------------------     ----------- ----------------------------
  <C>                    <C>                            <C>         <S>
  Matthew B. McLennan        Senior Portfolio Manager--    Since      Mr. McLennan joined the
   Vice President            Mid Cap Equity                1998       Investment Adviser in
                             Small Cap Value               1996       1995. From 1994 to 1995,
                                                                      he worked in the
                                                                      Investment Banking
                                                                      Division of Goldman
                                                                      Sachs in Australia. From
                                                                      1991 to 1994, Mr.
                                                                      McLennan worked at
                                                                      Queensland Investment
                                                                      Corporation in
                                                                      Australia.
- ----------------------------------------------------------------------------------------------------
  Victor H. Pinter           Senior Portfolio Manager--    Since      Mr. Pinter joined the
   Vice President            CORE Large Cap Value CORE     1998       Investment Adviser in
                             U.S. Equity                   1996       1990. From 1985 to 1990,
                             CORE Large Cap Growth         1997       he was a project manager
                             CORE Small Cap Equity         1997       in the Information
                                                                      Technology Division of
                                                                      the Investment Adviser.
- ----------------------------------------------------------------------------------------------------
  Thomas S. Price            Senior Portfolio Manager--    Since      Mr. Price joined the
   Vice President            Growth and Income             1998       Investment Adviser in
                             Balanced (Equity)             1998       1997. From 1996 to 1997
                             Mid Cap Equity                1998       he was a Vice President
                                                                      and senior analyst at
                                                                      Franklin Mutual
                                                                      Advisors, Inc., the
                                                                      asset management
                                                                      division of Franklin
                                                                      Resources, Inc. From
                                                                      1993 to 1996 he was a
                                                                      Vice President and
                                                                      senior analyst at Heine
                                                                      Securities Corporation
                                                                      which was purchased by
                                                                      Franklin Resources, Inc.
- ----------------------------------------------------------------------------------------------------
  David G. Shell             Senior Portfolio Manager--    Since      Mr. Shell joined the
   Vice President            Capital Growth                1997       Investment Adviser in
                             Balanced (Equity)             1998       1997. From 1987 to 1997,
                                                                      he was a portfolio
                                                                      manager at Liberty
                                                                      Investment Management,
                                                                      Inc. and its predecessor
                                                                      firm, Eagle Asset
                                                                      Management.
- ----------------------------------------------------------------------------------------------------
  Ernest C. Segundo, Jr.     Senior Portfolio Manager--    Since      Mr. Segundo joined the
   Vice President            Capital Growth                1997       Investment Adviser in
                             Balanced (Equity)             1998       1997. From 1992 to 1997,
                                                                      he was a portfolio
                                                                      manager at Liberty
                                                                      Investment Management,
                                                                      Inc. From 1990 to 1992,
                                                                      he was an equity
                                                                      research analyst with
                                                                      Fidelity Management &
                                                                      Research Company.
- ----------------------------------------------------------------------------------------------------
  Lawrence S. Sibley         Senior Portfolio Manager--    Since      Mr. Sibley joined the
   Vice President            Growth and Income             1997       Investment Adviser in
                             Balanced (Equity)             1997       1997. From 1994 to 1997,
                             Mid Cap Equity                1997       he headed Institutional
                                                                      Equity Sales at J.P.
                                                                      Morgan Securities and
                                                                      from 1987 to 1994, he
                                                                      was a principal of
                                                                      Sanford C. Bernstein &
                                                                      Co. in its Institutional
                                                                      Sales Department.
- ----------------------------------------------------------------------------------------------------
  Karma Wilson              Senior Portfolio Manager--     Since      Ms. Wilson joined the
   Vice President           Growth and Income              1998       Investment Adviser in
                            Balanced (Equity)              1998       1994. Prior to 1994, she
                            Mid Cap Equity                 1998       was an investment
                                                                      analyst with Bankers
                                                                      Trust Australia Ltd.
                                                                      Before 1992 she was
                                                                      employed at Arthur
                                                                      Andersen LLP.
</TABLE>
 
  It is the responsibility of the Investment Adviser to make the investment
decisions for a Fund and to place the purchase and sale orders for the Fund's
portfolio transactions in U.S. and foreign markets. Such orders may be
directed to any broker including, to the extent and in the manner permitted by
applicable law, Goldman Sachs or its affiliates. In effecting purchases and
sales of portfolio securities for the Funds, the Investment Adviser will seek
the best price and execution of a Fund's orders. In doing so, where two or
more brokers or dealers offer comparable prices and execution for a particular
trade, consideration may be given to whether the broker or dealer provides
investment research or brokerage services or sells Shares of any Goldman Sachs
Fund. See the Additional Statement for a further description of the Investment
Adviser's brokerage allocation practices.
 
                                      37
<PAGE>
 
  As compensation for its services rendered and assumption of certain expenses
pursuant to separate Management Agreements, GSAM and GSFM are entitled to the
following fees, computed daily and payable monthly at the annual rates listed
below:
 
<TABLE>
<CAPTION>
                                                               FOR THE FISCAL
                                                CONTRACTUAL YEAR OR PERIOD ENDED
                                                   RATE*     JANUARY 31, 1998*
                                                ----------- --------------------
     <S>                                        <C>         <C>
     GSAM
     ----
     Balanced..................................    0.65%           0.65%
     Growth and Income.........................    0.70%           0.70%
     CORE Large Cap Value......................    0.60%             N/A
     CORE Large Cap Growth.....................    0.75%           0.60%
     CORE Small Cap Equity.....................    0.85%           0.75%
     Mid Cap Equity............................    0.75%           0.75%
     Small Cap Value...........................    1.00%           1.00%
     GSFM
     ----
     CORE U.S. Equity..........................    0.75%           0.59%
     Capital Growth............................    1.00%           1.00%
</TABLE>
 
- ---------------------
*All numbers are annualized. The difference, if any, between the stated fees
and the actual fees paid by the Funds reflects that the applicable Investment
Adviser did not charge the full amount of the fees to which it would have been
entitled. Effective September 1, 1998, the management fee for the CORE U.S.
Equity and CORE Small Cap Equity Funds will equal 0.70% and 0.85%,
respectively. As of January 31, 1998, the CORE Large Cap Value Fund had not
commenced operations. The Investment Adviser may discontinue or modify any
limitations in the future at its discretion.
 
  The Investment Adviser has voluntarily agreed to reduce or limit certain
"Other Expenses" of the Funds (excluding management fees, service fees,
transfer agency fees, taxes, interest and brokerage fees and litigation,
indemnification and other extraordinary expenses) to the extent such expenses
exceed 0.01%, 0.05%, 0.00%, 0.00%, 0.00%, 0.04%, 0.00%, 0.10% and 0.06% per
annum of the average daily net assets of the Balanced, Growth and Income, CORE
Large Cap Value, CORE U.S. Equity, CORE Large Cap Growth, CORE Small Cap
Equity, Capital Growth, Mid Cap Equity and Small Cap Value Funds,
respectively. Such reductions or limits, if any, may be discontinued or
modified by the applicable Investment Adviser in its discretion at any time.
 
  ACTIVITIES OF GOLDMAN SACHS AND ITS AFFILIATES AND OTHER ACCOUNTS MANAGED BY
GOLDMAN SACHS. The involvement of the Investment Adviser, Goldman Sachs and
their affiliates in the management of, or their interest in, other accounts
and other activities of Goldman Sachs may present conflicts of interest with
respect to a Fund or limit a Fund's investment activities. Goldman Sachs and
its affiliates engage in proprietary trading and advise accounts and funds
which have investment objectives similar to those of the Funds and/or which
engage in and compete for transactions in the same type of securities,
currencies and instruments as the Funds. Goldman Sachs and its affiliates will
not have any obligation to make available any information regarding their
proprietary activities or strategies, or the activities or strategies used for
other accounts managed by them, for the benefit of the management of the
Funds. The results of a Fund's investment activities, therefore, may differ
from those of Goldman Sachs and its affiliates and it is possible that a Fund
could sustain losses during periods in which Goldman Sachs and its affiliates
and other accounts achieve significant profits on their trading for
proprietary or other accounts. In addition, the Funds may, from time to time,
enter into transactions in which other clients of
 
                                      38
<PAGE>
 
Goldman Sachs have an adverse interest. From time to time, a Fund's activities
may be limited because of regulatory restrictions applicable to Goldman Sachs
and its affiliates, and/or their internal policies designed to comply with
such restrictions. See "Management--Activities of Goldman Sachs and its
Affiliates and Other Accounts Managed by Goldman Sachs" in the Additional
Statement for further information.
 
DISTRIBUTOR AND TRANSFER AGENT
 
  Goldman Sachs, 85 Broad Street, New York, New York 10004, serves as the
exclusive distributor (the "Distributor") of each Fund's Shares. Goldman
Sachs, 4900 Sears Tower, Chicago, Illinois 60606, also serves as each Fund's
transfer agent (the "Transfer Agent") and as such performs various shareholder
servicing functions. Shareholders with inquiries regarding a Fund should
contact Goldman Sachs (as Transfer Agent) at the address or the telephone
number set forth on the back cover page of this Prospectus. Goldman Sachs is
entitled to receive a transfer agency fee with respect to each Fund's
Institutional and Service Shares equal, on an annual basis, to 0.04% of
average daily net assets.
 
  From time to time, Goldman Sachs or any of its affiliates may purchase and
hold Shares of the Funds. Goldman Sachs reserves the right to redeem at any
time some or all of the Shares acquired for its own account.
 
YEAR 2000
 
  Many computer systems were designed using only two digits to signify the
year (for example, "98" for "1998"). On January 1, 2000, if these computer
systems are not corrected, they may incorrectly interpret "00" as the year
"1900" rather than the year "2000," leading to computer shutdowns or errors
(commonly known as the "Year 2000 Problem"). To the extent these systems
conduct forward-looking calculations, these computer problems may occur prior
to January 1, 2000. Like other investment companies and financial and business
organizations, the Funds could be adversely affected in their ability to
process securities trades, price securities, provide shareholder account
services and otherwise conduct normal business operations if the Investment
Adviser or other Fund service providers do not adequately address this problem
in a timely manner. The Investment Adviser has established a dedicated group
to analyze these issues and to implement the systems modifications necessary
to prepare for the Year 2000 Problem. Currently, the Investment Adviser does
not anticipate that the transition to the 21st Century will have any material
impact on its ability to continue to service the Funds at current levels. In
addition, the Investment Adviser has sought assurances from the Funds' other
service providers that they are taking the steps necessary so that they do not
experience Year 2000 Problems, and the Investment Adviser will continue to
monitor the situation. At this time, however, no assurance can be given that
the actions taken by the Investment Adviser and the Funds' other service
providers will be sufficient to avoid any adverse effect on the Funds due to
the Year 2000 Problem.
 
 
                                   EXPENSES
 
  The Funds are responsible for the payment of their expenses. The expenses
include, without limitation; fees payable to the Investment Adviser; custodial
and transfer agency fees; service fees paid to Service Organizations;
brokerage fees and commissions; filing fees for the registration or
qualification of the Funds' Shares under federal or state securities laws,
organizational expenses; fees and expenses incurred in connection with
membership in investment company organizations; taxes; interest; costs of
liability insurance, fidelity bonds or indemnification; any costs, expenses or
losses arising out of any liability of, or claim for damages or other relief
 
                                      39
<PAGE>
 
asserted against, the Funds for violation of any law; legal and auditing fees
and expenses (including the cost of legal and certain accounting services
rendered by employees of the Investment Adviser and its affiliates with
respect to the Funds); expenses of preparing and setting in type prospectuses,
Additional Statements, proxy material, financial reports and notices and the
printing and distributing of the same to shareholders and regulatory
authorities; compensation and expenses of the Trust's "non-interested"
Trustees; and extraordinary organizational expenses, if any, incurred by the
Trust.
 
 
                                NET ASSET VALUE
 
  The NAV per Share of each Class of a Fund is calculated by the Fund's
custodian as of the close of regular trading on the New York Stock Exchange
(which is normally, but not always, 3:00 p.m. Chicago time, 4:00 p.m. New York
time), on each Business Day (as such term is defined under "Additional
Information"). NAV per Share of each Class is calculated by determining the
net assets attributed to each Class and dividing by the number of outstanding
Shares of that Class. Portfolio securities are valued based on market
quotations or, if accurate quotations are not readily available, at fair value
as determined in good faith under procedures established by the Trustees.
 
 
                            PERFORMANCE INFORMATION
 
  From time to time each Fund may publish average annual total return and the
Balanced, CORE Large Cap Value and Growth and Income Funds may publish their
yield and distribution rates in advertisements and communications to
shareholders or prospective investors. Average annual total return is
determined by computing the average annual percentage change in value of
$1,000 invested at the maximum public offering price for specified periods
ending with the most recent calendar quarter, assuming reinvestment of all
dividends and distributions at NAV. The total return calculation assumes a
complete redemption of the investment at the end of the relevant period. Each
Fund may also from time to time advertise total return on a cumulative,
average, year-by-year or other basis for various specified periods by means of
quotations, charts, graphs or schedules. In addition, each Fund may furnish
total return calculations based on investments at various sales charge levels
or at NAV. Any performance information which is based on the NAV per Share
would be reduced if any applicable sales charge were taken into account. In
addition to the above, each Fund may from time to time advertise its
performance relative to certain averages, performance rankings, indices, other
information prepared by recognized mutual fund statistical services and
investments for which reliable performance information is available.
 
  The Balanced, CORE Large Cap Value and Growth and Income Funds compute their
yield by dividing net investment income earned during a recent thirty-day
period by the product of the average daily number of Shares outstanding and
entitled to receive dividends during the period and the maximum offering price
per Share on the last day of the relevant period. The results are compounded
on a bond equivalent (semi-annual) basis and then annualized. Net investment
income per Share is equal to the dividends and interest earned during the
period, reduced by accrued expenses for the period. The calculation of net
investment income for these purposes may differ from the net investment income
determined for accounting purposes. The Balanced, CORE Large Cap Value and
Growth and Income Funds' quotations of distribution rate are calculated by
annualizing the most
 
                                      40
<PAGE>
 
recent distribution of net investment income for a monthly, quarterly or other
relevant period and dividing this amount by the NAV per Share on the last day
of the period for which the distribution rate is being calculated.
 
  Each Fund's total return, yield and distribution rate will be calculated
separately for each Class of Shares in existence. Because each Class of Shares
may be subject to different expenses, the total return, yield and distribution
rate calculations with respect to each Class of Shares for the same period
will differ. See "Shares of the Trust."
 
  The Funds' performance quotations do not reflect any fees charged by a
Service Organization to its customer accounts in connection with investments
in the Funds. The investment results of a Fund will fluctuate over time and
any presentation of investment results for any prior period should not be
considered a representation of what an investment may earn or what the Fund's
performance may be in any future period. In addition to information provided
in shareholder reports, the Funds may, in their discretion, from time to time
make a list of their holdings available to investors upon request.
 
 
                              SHARES OF THE TRUST
 
  Goldman Sachs Trust was formed under the laws of the State of Delaware on
January 28, 1997. On April 30, 1997, Goldman Sachs Equity Portfolios, Inc., a
Maryland corporation was reorganized into the Trust. The Trustees have
authority under the Trust's Declaration of Trust to create and classify Shares
of beneficial interests in separate series, without further action by
shareholders. Additional series may be added in the future. The Trustees also
have authority to classify and reclassify any series or portfolio of Shares
into one or more Classes. Information about the Trust's other series and
Classes is contained in separate prospectuses.
 
  When issued, Shares are fully paid and non-assessable. In the event of
liquidation, shareholders of each class are entitled to share pro rata in the
net assets of the applicable Fund available for distribution to the
shareholders of such Class. All Shares are freely transferable and have no
preemptive, subscription or conversion rights. Shareholders are entitled to
one vote per Share, provided that, at the option of the Trustees, shareholders
will be entitled to a number of votes based upon the NAVs represented by their
Shares.
 
  The Trust does not intend to hold annual meetings of shareholders. However,
recordholders may, under certain circumstances, as permitted by the Act,
communicate with other shareholders in connection with requiring a special
meeting of shareholders. The Trustees will call a special meeting of
shareholders for the purpose of electing Trustees if, at any time, less than a
majority of Trustees holding office at the time were elected by shareholders.
 
  In the interest of economy and convenience, the Trust does not issue
certificates representing the Funds' Shares. Instead, the Transfer Agent
maintains a record of each shareholder's ownership. Each shareholder receives
confirmation of purchase and redemption orders from the Transfer Agent. Fund
Shares and any dividends and distributions paid by the Fund are reflected in
account statements from the Transfer Agent.
 
                                      41
<PAGE>
 
 
                                   TAXATION
 
FEDERAL TAXES
 
  Each Fund is treated as a separate entity for tax purposes. The CORE Large
Cap Value Fund intends to elect and each other Fund has elected to be treated
as a regulated investment company, and each Fund intends to continue to
qualify for such treatment for each taxable year under Subchapter M of the
Code. To qualify as such, a Fund must satisfy certain requirements relating to
the sources of its income, diversification of its assets and distribution of
its income to shareholders. As a regulated investment company, a Fund will not
be subject to federal income or excise tax on any net investment income and
net realized capital gains that are distributed to its shareholders in
accordance with certain timing requirements of the Code.
 
  Dividends paid by a Fund from net investment income, certain net realized
foreign exchange gains, the excess of net short-term capital gain over net
long-term capital loss and original issue discount or market discount income
will be taxable to its shareholders as ordinary income. Distributions out of
the net capital gain (the excess of net long-term capital gain over net short-
term capital loss), if any, of a Fund will be taxed to shareholders as long-
term capital gains, regardless of the length of time a shareholder has held
his or her Shares or whether such gain was reflected in the price paid for the
Shares. These tax consequences will apply whether distributions are received
in cash or reinvested in Shares. A Fund's dividends that are paid to its
corporate shareholders and are attributable to qualifying dividends such Fund
receives from U.S. domestic corporations may be eligible, in the hands of such
corporate shareholders, for the corporate dividends-received deduction,
subject to certain holding period requirements and debt financing limitations
under the Code. Certain distributions paid by a Fund in January of a given
year may be taxable to shareholders as if received the prior December 31.
Shareholders will be informed annually about the amount and character of
distributions received from the Funds for federal income tax purposes.
 
  Investors should consider the tax implications of buying Shares immediately
prior to a distribution. Investors who purchase Shares shortly before the
record date for a distribution will pay a per Share price that includes the
value of the anticipated distribution and will be taxed on the distribution
even though the distribution represents a return of a portion of the purchase
price.
 
  Redemptions and exchanges of Shares are taxable events.
 
  Individuals and certain other classes of shareholders may be subject to 31%
backup withholding of federal income tax on distributions, redemptions and
exchanges if they fail to furnish their correct taxpayer identification number
and certain certifications required by the Internal Revenue Service or if they
are otherwise subject to backup withholding. Individuals, corporations and
other shareholders that are not U.S. persons under the Code are subject to
different tax rules and may be subject to nonresident alien withholding at the
rate of 30% (or a lower rate provided by an applicable tax treaty, if any) on
amounts treated as ordinary dividends from the Funds.
 
  Each Fund may be subject to foreign withholding or other foreign taxes on
income or gain from certain foreign securities. In general, the Funds do not
anticipate that they will be eligible to pass any foreign tax credits through
to their shareholders; however, the Funds may deduct these taxes in computing
their taxable income, if any.
 
                                      42
<PAGE>
 
OTHER TAXES
 
  In addition to federal taxes, a shareholder may be subject to state, local
or foreign taxes on payments received from the Funds. A state income (and
possibly local income and/or intangible property) tax exemption may be
available to the extent (if any) a Fund's distributions are derived from
interest on (or, in the case of intangible property taxes, the value of its
assets is attributable to) certain U.S. Government obligations, provided in
some states that certain thresholds for holdings of such obligations and/or
reporting requirements are satisfied. For a further discussion of certain tax
consequences of investing in Shares of the Funds, see "Taxation" in the
Additional Statement. Shareholders are urged to consult their own tax advisers
regarding specific questions as to federal, state and local taxes as well as
to any foreign taxes.
 
 
                            ADDITIONAL INFORMATION
 
  As used in this Prospectus, the term "Business Day" means any day the New
York Stock Exchange is open for trading, which is Monday through Friday except
for holidays. The New York Stock Exchange is closed on the following holidays:
New Year's Day, Martin Luther King, Jr. Day, Presidents' Day (observed), Good
Friday, Memorial Day (observed), Independence Day, Labor Day, Thanksgiving Day
and Christmas Day.
 
                                      43
<PAGE>
 
 
                              ADDITIONAL SERVICES
 
 
  The Trust, on behalf of the Funds, has adopted a Service Plan with respect to
the Service Shares which authorizes a Fund to compensate certain institutions
("Service Organizations") for providing account administration and personal and
account maintenance services to their customers who are beneficial owners of
such Shares. The Trust, on behalf of the Funds, enters into agreements with
Service Organizations which purchase Service Shares on behalf of their custom-
ers ("Service Agreements"). The Service Agreements provide for compensation to
the Service Organizations in an amount up to 0.50% (on an annualized basis) of
the average daily net assets of the Service Shares of the Fund attributable to
or held in the name of the Service Organization for its customers; provided,
however, that the fee paid for personal and account maintenance services may
not exceed 0.25% of such average daily net assets. The services provided by the
Service Organizations may include acting, directly or through an agent, as the
sole shareholder of record, maintaining account records for customers, process-
ing orders to purchase, redeem or exchange Service Shares for customers, re-
sponding to inquiries from prospective and existing shareholders and assisting
customers with investment procedures.
 
  The Trust may authorize certain Service Organizations to accept on the
Trust's behalf, purchase, redemption and exchange orders placed by their
customers and, if approved by the Trust, to designate other intermediaries to
accept such orders. In these cases, a Fund will be deemed to have received an
order in proper form when the order is accepted by the authorized Service
Organization or intermediary on a Business Day, and the order will be priced at
a Fund's NAV per Share next determined after such acceptance. The Service
Organization or intermediary will be responsible for transmitting accepted
orders to the Trust within the period agreed upon by them. A customer may
contact its Service Organization to learn whether the Service Organization is
authorized to accept orders. Service Organizations that are authorized to
accept orders for the Trust may receive payments from the Funds or Goldman
Sachs that are in addition to the payments payable by the Trust under the
Service Plan.
 
  Holders of Service Shares of a Fund bear all expenses and fees paid to Serv-
ice Organizations under the Service Plan as well as any other expenses which
are directly attributable to such Shares.
 
  Service Organizations may charge fees directly to their customers who are the
beneficial owners of Service Shares in connection with their customer accounts.
These fees would be in addition to any amounts received by the Service Organi-
zation under a Service Agreement and may affect the return earned on an invest-
ment in a Fund. The Trust, on behalf of the Funds, accrues payments made pursu-
ant to a Service Agreement daily. All inquiries of beneficial owners of Service
Shares should be directed to such owners' Service Organization.
 
  For the fiscal year ended January 31, 1998, the Trust paid the Service
Organizations fees at the annual rate of 0.50% of each Fund's average daily net
assets attributable to Service Shares.
 
 
                            REPORTS TO SHAREHOLDERS
 
 
  Recordholders of Service Shares of the Funds will receive an annual report
containing audited financial statements and a semi-annual report. Each
recordholder of Service Shares will also be provided with a printed confirma-
tion for each transaction in its account and a quarterly account statement. A
year-to-date statement for any account will be provided to a Service Organiza-
tion upon request made to Goldman Sachs.
 
                                       44
<PAGE>
 
 
  Service Organizations will be responsible for providing services similar to
those described above to their customers who are the beneficial owners of such
Shares. For example, Service Organizations are responsible for providing each
customer exercising investment discretion with quarterly statements with re-
spect to such customer's account in lieu of an immediate confirmation of each
transaction.
 
 
                                   DIVIDENDS
 
 
  Each dividend from net investment income and capital gain distributions, if
any, declared by a Fund on its outstanding Service Shares will, at the election
of each shareholder, be paid: (i) in cash; or (ii) in additional Service Shares
of such Fund. This election should initially be made on a shareholder's Account
Information Form and may be changed upon written notice to Goldman Sachs at any
time prior to the record date for a particular dividend or distribution. If no
election is made, all dividends from net investment income and capital gain
distributions will be reinvested in Service Shares of the applicable Fund.
 
  The election to reinvest dividends and distributions paid by a Fund in addi-
tional Service Shares of the Fund will not affect the tax treatment of such
dividends and distributions, which will be treated as received by the share-
holder and then used to purchase Service Shares of a Fund.
 
  Each Fund intends that all or substantially all its net investment income and
net capital gains, after reduction by available capital losses, including any
capital losses carried forward from prior years, will be declared as dividends
for each taxable year. The Balanced, CORE Large Cap Value and Growth and Income
Funds will pay dividends from net investment income quarterly. Each other Fund
will pay dividends from net investment income, and dividends from net realized
capital gains, reduced by available capital losses, at least annually. From
time to time, a portion of a Fund's dividends may constitute a return of
capital.
 
  At the time of an investor's purchase of Shares of a Fund a portion of the
NAV per Share may be represented by undistributed income of the Fund or real-
ized or unrealized appreciation of the Fund's portfolio securities. Therefore,
subsequent distributions on such Shares from such income or realized apprecia-
tion may be taxable to the investor even if the NAV of the investor's Shares
is, as a result of the distributions, reduced below the cost of such Shares and
the distributions (or portions thereof) represent a return of a portion of the
purchase price.
 
 
                           PURCHASE OF SERVICE SHARES
 
 
  Customers of Service Organizations may invest in Service Shares only through
their Service Organizations. Service Shares may be purchased on any Business
Day at the NAV per Share next determined after receipt of an order by Goldman
Sachs from a Service Organization. (See "Additional Services" for a description
of limited situations where a Service Organization or other intermediary may be
authorized to accept orders for the Funds.) No sales load will be charged. Cur-
rently, the NAV is determined as of the close of regular trading on the New
York Stock Exchange (which is normally, but not always, 3:00 p.m. Chicago time,
4:00 p.m. New York time), as described under "Net Asset Value." Purchases of
Service Shares of the Funds must be settled within three (3) Business Days of
the receipt of a complete purchase order. Payment of the proceeds of redemption
of Shares purchased by check may be delayed for a period of time as described
under "Redemption of Service Shares."
 
                                       45
<PAGE>
 
 
  The Service Organizations are responsible for the timely transmittal of
purchase orders to Goldman Sachs and payments to State Street Bank and Trust
Company ("State Street"). In order to facilitate timely transmittal, the
Service Organizations have established times by which purchase orders and
payments must be received by them.
 
PURCHASE PROCEDURES
 
  Purchases of Service Shares may be made by a Service Organization placing an
order with Goldman Sachs at 800-621-2550 and either wiring federal funds to
State Street or initiating an ACH transfer. Purchases may also be made by a
Service Organization by check (except that the Trust will not accept a check
drawn on a foreign bank or a third party check) or Federal Reserve draft made
payable to "Goldman Sachs Domestic Equity Funds--Name of Fund and Class of
Shares" and should be directed to "Goldman Sachs Domestic Equity Funds--Name of
Fund and Class of Shares," c/o National Financial Data Services, Inc. ("NFDS"),
P.O. Box 419711, Kansas City, MO 64141-6711.
 
OTHER PURCHASE INFORMATION
 
  The Funds do not have any minimum purchase or account requirements with
respect to Service Shares. A Service Organization may, however, impose a
minimum amount for initial and subsequent investments in Service Shares, and
may establish other requirements such as a minimum account balance. A Service
Organization may effect redemptions of noncomplying accounts, and may impose a
charge for any special services rendered to its customers. Customers should
contact their Service Organization for further information concerning such
requirements and charges.
 
  The Investment Adviser, Distributor, and/or their affiliates also pay
additional compensation, from time to time, out of their assets and not as an
additional charge to the Funds, to selected Service Organizations and other
persons in connection with the sale of Shares of the Funds and other investment
portfolios of the Trust (such as additional payments based on new sales amounts
exceeding pre-established thresholds, or the length of time customer assets
have remained in the Trust) and, subject to applicable NASD regulations,
contribute to various non-cash and cash incentive arrangements to promote the
sale of Shares, as well as sponsor various educational programs, sales contests
and/or promotions in which participants may receive reimbursement of expenses,
entertainment and prizes such as travel awards, merchandise, cash, investment
research and educational information and related support materials. This
additional compensation can vary among Service Organizations depending upon
such factors as the amounts their customers have invested (or may invest) in
particular investment portfolios of the Trust, the particular program involved,
or the amount of reimbursable expenses. Additional compensation based on sales
may, but is currently not expected to, exceed 0.50% (annualized) of the amount
invested. For further information, see the Additional Statement.
 
  The Funds reserve the right to redeem Service Shares of any Service Organiza-
tion whose account balance is less than $50 as a result of earlier redemptions.
Such redemptions will not be implemented if the value of a recordholder's ac-
count falls below the minimum account balance solely as a result of market con-
ditions. The Trust will give 60 days' prior written notice to Service Organiza-
tions whose Service Shares are being redeemed to allow them to purchase suffi-
cient additional Service Shares to avoid such redemption.
 
  The Funds and Goldman Sachs each reserve the right to reject any specific
purchase order (including exchanges) or to restrict purchases or exchanges by a
particular purchaser (or group of related purchasers). This
 
                                       46
<PAGE>
 
may occur, for example, when a purchaser or group of purchaser's pattern of
frequent purchases, sales or exchanges of Service Shares of a Fund is evident,
or if purchases, sales, or exchanges are, or a subsequent abrupt redemption
might be, of a size that would disrupt management of a Fund.
 
  In the sole discretion of Goldman Sachs, a Fund may accept securities instead
of cash for the purchase of Shares of the Fund. Such purchases will be
permitted only if the Investment Adviser determines that any securities
acquired in this manner are consistent with the Fund's investment objectives,
restrictions and policies and are desirable investments for the Fund.
 
 
                               EXCHANGE PRIVILEGE
 
 
  Service Shares of the Funds may be exchanged by a Service Organization for:
(i) Service Shares of any other mutual fund sponsored by Goldman Sachs and des-
ignated as an eligible fund for this purpose; and (ii) the corresponding class
of any Goldman Sachs Money Market Fund at the NAV next determined either by
writing to Goldman Sachs, Attention: Goldman Sachs Domestic Equity Funds--Name
of Fund and Class of Shares, c/o GSAM Shareholder Services, 4900 Sears Tower,
Chicago, Illinois 60606 or, if previously elected in the Fund's Account Infor-
mation Form, by telephone at 800-621-2550 (7:00 a.m. to 5:30 p.m. Chicago
time). A shareholder should obtain and read the prospectus relating to any
other fund and its Shares and consider its investment objective, policies and
applicable fees before making an exchange. Service Shares acquired by telephone
exchange must be registered in the same name(s) and have the same address as
Service Shares of the Fund for which the exchange is being made.
 
   In an effort to prevent unauthorized or fraudulent exchanges by telephone,
Goldman Sachs employs reasonable procedures as set forth under "Redemption of
Service Shares" to confirm that such instructions are genuine. In times of
drastic economic or market changes the telephone exchange privilege may be dif-
ficult to implement. For federal income tax purposes, an exchange is treated as
a sale of the Service Shares surrendered in the exchange, on which an investor
may realize a gain or loss, followed by a purchase of Service Shares or the
corresponding class of any Goldman Sachs Money Market Fund received in the ex-
change. Shareholders should consult their own tax advisers concerning the tax
consequences of an exchange. Exchanges are available only in states where ex-
changes may legally be made. The exchange privilege may be materially modified
or withdrawn at any time on 60 days' written notice to recordholders of Service
Shares and is subject to certain limitations. See "Purchase of Service Shares."
 
 
                          REDEMPTION OF SERVICE SHARES
 
 
  The Funds will redeem their Service Shares upon request of a recordholder of
such Shares on any Business Day at the NAV next determined after the receipt of
a request in proper form by Goldman Sachs. (See "Additional Services" for a de-
scription of limited situations where a Service Organization or other interme-
diary may be authorized to accept requests for the Funds.) If Service Shares to
be redeemed were recently purchased by check, a Fund may delay transmittal of
redemption proceeds until such time as it has assured itself that good funds
have been collected for the purchase of such Service Shares. This may take up
to 15 days. Redemption
 
                                       47
<PAGE>
 
requests may be made by a Service Organization by writing to or calling the
Transfer Agent at the address or telephone number set forth on the back cover
of this Prospectus. A Service Organization may request redemptions by telephone
if the optional telephone redemption privilege is elected on the Account Infor-
mation Form. It may be difficult to implement redemptions by telephone in times
of drastic economic or market changes.
 
   In an effort to prevent unauthorized or fraudulent redemption or exchange
requests by telephone, Goldman Sachs employs reasonable procedures specified by
the Trust to confirm that such instructions are genuine. Among other things,
any redemption request that requires money to go to an account or address other
than that designated on the Account Information Form must be in writing and
signed by an authorized person designated on the Account Information Form. Any
such written request is also confirmed by telephone with both the requesting
party and the designated bank account to verify instructions. Exchanges among
accounts with different names, addresses and social security or other taxpayer
identification numbers must be in writing and signed by an authorized person
designated on the Account Information Form. Other procedures may be implemented
from time to time concerning telephone redemptions and exchanges. If reasonable
procedures are not implemented, the Trust may be liable for any loss due to
unauthorized or fraudulent transactions. In all other cases, neither the Funds,
the Trust nor Goldman Sachs will be responsible for the authenticity of
redemption or exchange instructions received by telephone.
 
  The Funds will arrange for the proceeds of redemptions effected by any means
to be wired to the recordholder of Service Shares or, if the recordholder
elects in writing, by check. Redemption proceeds paid by wire transfer will
normally be wired on the next Business Day in federal funds (for a total one-
day delay), but may be paid up to three days after receipt of a properly
executed redemption request. Wiring of redemption proceeds may be delayed one
additional Business Day if the Federal Reserve Bank is closed on the day
redemption proceeds would ordinarily be wired. Redemption proceeds paid by
check will normally be mailed to the address of record within three Business
Days of receipt of a properly executed redemption request. Once wire transfer
instructions have been given by Goldman Sachs, neither the Funds, the Trust nor
Goldman Sachs assumes any further responsibility for the performance of
intermediaries or the customer's Service Organization in the transfer process.
If a problem with such performance arises, the customer should deal directly
with such intermediaries or Service Organizations.
 
  Additional documentation regarding a redemption by any means may be required
to effect a redemption when deemed appropriate by the Transfer Agent. The
request for such redemption will not be considered to have been received in
proper form until such additional documentation has been submitted to the
Transfer Agent by the recordholder of Service Shares.
 
  Service Organizations are responsible for the timely transmittal of
redemption requests by their customers to the Transfer Agent. In order to
facilitate timely transmittal of redemption requests, Service Organizations
have established times by which redemption requests must be received by them.
Additional documentation may be required when deemed appropriate by a Service
Organization.
 
                              --------------------
 
                                       48
<PAGE>
 
 
                                 APPENDIX A
 
 
 
                   GUIDELINES FOR CERTIFICATION OF TAXPAYER
               IDENTIFICATION NUMBER ON ACCOUNT INFORMATION FORM
 
  You are required by law to provide a Fund with your correct Taxpayer
Identification Number (TIN), regardless of whether you file tax returns.
Failure to do so may subject you to penalties. Failure to provide your correct
TIN and to sign your name in the Certification section of the Account
Information Form could result in withholding of 31% by a Fund for the federal
backup withholding tax on distributions, redemptions, exchanges and other
payments relating to your account.
 
  Any tax withheld may be credited against taxes owed on your federal income
tax return.
 
  If you do not have a TIN, you should apply for one immediately by contacting
your local office of the Social Security Administration or the Internal
Revenue Service (IRS). Backup withholding could also apply to payments
relating to your account prior to a Fund's receipt of your TIN.
 
  Special rules apply for certain entities. For example, for an account
established under a Uniform Gifts or Transfers to Minors Act, the TIN of the
minor should be furnished.
 
  If you have been notified by the IRS that you are subject to backup
withholding because you failed to report all your interest and/or dividend
income on your tax return and you have not been notified by the IRS that such
withholding should cease, you must cross out item (2) in the Certification
section of the Account Information Form.
 
  If you are an exempt recipient, you should furnish your TIN and certify your
exemption by signing the Certification section and writing "exempt" after your
signature. Exempt recipients include: corporations, tax-exempt pension plans
and IRAs, governmental agencies, financial institutions, registered securities
and commodities dealers and others.
 
  If you are a nonresident alien or foreign entity, you must provide a
completed Form W-8 to a Fund in order to avoid backup withholding on certain
payments. Other payments to you may be subject to nonresident alien
withholding of up to 30%.
 
  For further information regarding backup and nonresident alien withholding,
see Sections 3406, 1441 and 1442 of the Code and consult your tax adviser.
 
                                      A-1
<PAGE>
 
- --------------------------------------------------------------------------------
 
GOLDMAN SACHS ASSET
MANAGEMENT
ONE NEW YORK PLAZA
NEW YORK, NEW YORK 10004
 
GOLDMAN SACHS FUNDS
MANAGEMENT, L.P.
ONE NEW YORK PLAZA
NEW YORK, NEW YORK 10004
 
GOLDMAN, SACHS & CO.
DISTRIBUTOR
85 BROAD STREET
NEW YORK, NEW YORK 10004
 
GOLDMAN, SACHS & CO.
TRANSFER AGENT
4900 SEARS TOWER
CHICAGO, ILLINOIS 60606
 
STATE STREET BANK AND TRUST COMPANY
CUSTODIAN
1776 HERITAGE DRIVE
NORTH QUINCY, MASSACHUSETTS 02171
 
ARTHUR ANDERSEN, LLP
INDEPENDENT PUBLIC ACCOUNTANTS
225 FRANKLIN STREET
BOSTON, MASSACHUSETTS 02110
 
TOLL FREE (IN U.S.) . . . . . . . . 800-621-2550
 
EQDOMPROSVC
501418
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
GOLDMAN SACHS
DOMESTIC
EQUITY FUNDS
 
- --------------------------------------------------------------------------------
 
PROSPECTUS
 
SERVICE SHARES
 
 
 
Goldman
Sachs
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
 
                                    PART B
                      STATEMENT OF ADDITIONAL INFORMATION
                                CLASS A SHARES
                                CLASS B SHARES
                                CLASS C SHARES
                                SERVICE SHARES
                             INSTITUTIONAL SHARES

                          GOLDMAN SACHS BALANCED FUND
                     GOLDMAN SACHS GROWTH AND INCOME FUND
                    GOLDMAN SACHS CORE LARGE CAP VALUE FUND
                      GOLDMAN SACHS CORE U.S. EQUITY FUND
                   GOLDMAN SACHS CORE LARGE CAP GROWTH FUND
                   GOLDMAN SACHS CORE SMALL CAP EQUITY FUND
                 GOLDMAN SACHS CORE INTERNATIONAL EQUITY FUND
                       GOLDMAN SACHS CAPITAL GROWTH FUND
                       GOLDMAN SACHS MID CAP EQUITY FUND
                    GOLDMAN SACHS INTERNATIONAL EQUITY FUND
                      GOLDMAN SACHS SMALL CAP VALUE FUND
                      GOLDMAN SACHS EUROPEAN EQUITY FUND
                      GOLDMAN SACHS JAPANESE EQUITY FUND
                  GOLDMAN SACHS INTERNATIONAL SMALL CAP FUND
                  GOLDMAN SACHS EMERGING MARKETS EQUITY FUND
                        GOLDMAN SACHS ASIA GROWTH FUND
                   GOLDMAN SACHS REAL ESTATE SECURITIES FUND

                  (EQUITY PORTFOLIOS OF GOLDMAN SACHS TRUST)

                               4900 Sears Tower
                         Chicago, Illinois  60606-6303

     This Statement of Additional Information (the "Additional Statement") is
not a Prospectus.  This Additional Statement should be read in conjunction with
the Prospectuses for the Class A Shares, Class B Shares, Class C Shares, Service
Shares and Institutional Shares of: Goldman Sachs Balanced Fund, Goldman Sachs
Growth and Income Fund, Goldman Sachs CORE Large Cap Value Fund, Goldman Sachs
CORE U.S. Equity Fund, Goldman Sachs CORE Large Cap Growth Fund, Goldman Sachs
CORE Small Cap Equity Fund, Goldman Sachs Capital Growth Fund,  Goldman Sachs
Mid Cap Equity Fund and Goldman Sachs Small Cap Value Fund dated January 8,
1999; Goldman Sachs CORE International Equity Fund, Goldman Sachs International
Equity Fund, Goldman Sachs European Equity Fund, Goldman Sachs Japanese Equity
Fund, Goldman Sachs International Small Cap Fund, Goldman Sachs Emerging Markets
Equity Fund and Goldman Sachs Asia Growth Fund dated October 1, 1998; and
Goldman Sachs Real Estate Securities Fund dated October 1, 1997, as revised
December 10, 1998 (the "Prospectuses"), which may be obtained without charge
from Goldman, Sachs & Co. by calling the telephone number, or writing to one of
the addresses, listed below.
<PAGE>
                              TABLE OF CONTENTS  

<TABLE>
<CAPTION>
                                                                                                     Page
                                                                                                     -----
<S>                                                                                                  <C>
INTRODUCTION.......................................................................................    B-4
INVESTMENT POLICIES................................................................................    B-5
INVESTMENT RESTRICTIONS............................................................................   B-41
MANAGEMENT.........................................................................................   B-44
PORTFOLIO TRANSACTIONS AND BROKERAGE...............................................................   B-62
NET ASSET VALUE....................................................................................   B-68
PERFORMANCE INFORMATION............................................................................   B-70
SHARES OF THE TRUST................................................................................   B-79
TAXATION...........................................................................................   B-84
FINANCIAL STATEMENTS...............................................................................   B-92
OTHER INFORMATION..................................................................................   B-92
DISTRIBUTION AND SERVICE PLANS.....................................................................   B-93
OTHER INFORMATION REGARDING MAXIMUM SALES CHARGE, PURCHASES, REDEMPTIONS, EXCHANGES AND DIVIDENDS..  B-101
SERVICE PLAN.......................................................................................  B-105
APPENDIX A.........................................................................................    1-A
APPENDIX B.........................................................................................    1-B
</TABLE> 

           The date of this Additional Statement is January 8, 1998.

                                      B-2
<PAGE>
 
<TABLE>
<S>                                                         <C> 
GOLDMAN SACHS FUNDS MANAGEMENT, L.P.                        GOLDMAN, SACHS & CO.                        
Adviser to:                                                 Distributor                                 
Goldman Sachs CORE U.S. Equity Fund                         85 Broad Street                             
Goldman Sachs Capital Growth Fund                           New York, New York 10004                    
One New York Plaza                                                                                      
New York, New York 10004                                                                                
                                                            GOLDMAN SACHS ASSET                          
GOLDMAN SACHS ASSET MANAGEMENT                              MANAGEMENT INTERNATIONAL                      
Adviser to:                                                 Adviser to:                                   
Goldman Sachs Balanced Fund                                 Goldman Sachs International Equity Fund       
Goldman Sachs Growth and Income Fund                        Goldman Sachs European Equity Fund            
Goldman Sachs CORE Large Cap Value Fund                     Goldman Sachs Japanese Equity Fund            
Goldman Sachs CORE Large Cap Growth Fund                    Goldman Sachs International Small Cap Fund    
Goldman Sachs CORE Small Cap Equity Fund                    Goldman Sachs Emerging Markets Equity Fund    
Goldman Sachs CORE International Equity Fund                Goldman Sachs Asia Growth Fund                
Goldman Sachs Mid Cap Equity Fund                           133 Peterborough Court                        
Goldman Sachs Small Cap Value Fund                          London, England EC4A 2BB                      
Goldman Sachs Real Estate Securities Fund                                                                 
One New York Plaza
New York, New York  10004

GOLDMAN, SACHS & CO.
Transfer Agent
4900 Sears Tower
Chicago, Illinois  60606
</TABLE> 
                                             


                              Toll free (in U.S.)
                     Class A, B and C Shares -- 800-526-7384
                Institutional and Services Shares -- 800-621-2550

                                      B-3
<PAGE>
 
                                 INTRODUCTION

     Goldman Sachs Trust (the "Trust") is an open-end, management investment
company. The following series of the Trust are described in this Additional
Statement: Goldman Sachs Balanced Fund ("Balanced Fund"), Goldman Sachs Growth
and Income Fund ("Growth and Income Fund"), Goldman Sachs CORE Large Cap Value
Fund ("CORE Large Cap Value Fund"), Goldman Sachs CORE U.S. Equity Fund ("CORE
U.S. Equity Fund")(formerly known as "Goldman Sachs Select Equity Fund"),
Goldman Sachs CORE Large Cap Growth Fund ("CORE Large Cap Growth Fund"), Goldman
Sachs CORE Small Cap Equity Fund ("CORE Small Cap Equity Fund"), Goldman Sachs
CORE International Equity Fund ("CORE International Equity Fund"), Goldman Sachs
Mid Cap Equity Fund ("Mid Cap Equity Fund"), Goldman Sachs Capital Growth Fund
("Capital Growth Fund"),  Goldman Sachs International Equity Fund
("International Equity Fund"), Goldman Sachs Small Cap Value Fund ("Small Cap
Value Fund"), Goldman Sachs European Equity Fund ("European Equity Fund"),
Goldman Sachs Japanese Equity Fund ("Japanese Equity Fund"), Goldman Sachs
International Small Cap Fund ("International Small Cap Fund"), Goldman Sachs
Emerging Markets Equity Fund ("Emerging Markets Equity Fund"), Goldman Sachs
Asia Growth Fund ("Asia Growth Fund") and Goldman Sachs Real Estate Securities
Fund ("Real Estate Securities Fund") (collectively referred to herein as the
"Funds").

     The Funds, except the European Equity, Japanese Equity, International Small
Cap, CORE Large Cap Value, CORE Large Cap Growth, CORE International Equity,
CORE Small Cap Equity and Real Estate Securities Funds, were initially organized
as a series of a corporation formed under the laws of the State of Maryland on
September 27, 1989 and were reorganized as a Delaware business trust as of April
30, 1997.  The Trustees have authority under the Trust's charter to create and
classify shares into separate series and to classify and reclassify any series
or portfolio of shares into one or more classes without further action by
shareholders.  Pursuant thereto, the Trustees have created the Funds and other
series.  Additional series may be added in the future from time to time.  Each
Fund currently offers five classes of shares: Class A Shares, Class B Shares,
Class C Shares, Institutional Shares and Service Shares.  See "Shares of the
Trust."

     Goldman Sachs Asset Management, ("GSAM") a separate operating division of
Goldman, Sachs & Co. ("Goldman Sachs"), serves as investment adviser to the
Balanced, Growth and Income, CORE Large Cap Value, CORE Large Cap Growth, CORE
Small Cap Equity, CORE International Equity, Real Estate Securities, Mid Cap
Equity and Small Cap Equity Funds.  Goldman Sachs Fund Management, L.P.,
("GSFM") an affiliate of Goldman Sachs, serves as investment adviser to the CORE
U.S. Equity and Capital Growth Funds.  Goldman Sachs Asset Management
International ("GSAMI"), an affiliate of Goldman Sachs, serves as investment
adviser to the International Equity, European Equity, Japanese Equity,
International Small Cap, Emerging Markets Equity and Asia Growth Funds.  GSAM,
GSFM and GSAMI are sometimes referred to collectively herein as the "Advisers."
Goldman Sachs serves as each Fund's distributor and transfer agent.  Each Fund's
custodian is State Street Bank and Trust Company ("State Street").

     The following information relates to and supplements the description of
each Fund's investment policies contained in the Prospectuses.  See the
Prospectuses for a fuller description of the Funds' investment objectives and
policies.  There is no assurance that each Fund will achieve its objective.

                                      B-4
<PAGE>
 
                              INVESTMENT POLICIES

     Each Fund's share price will fluctuate with market, economic and, to the
extent applicable, foreign exchange conditions, so that an investment in any of
the Funds may be worth more or less when redeemed than when purchased.  None of
the Funds should be relied upon as a complete investment program.

BALANCED FUND
- -------------

     The investment objective of the Balanced Fund is to provide shareholders
with long-term capital growth and current income.  The Balanced Fund seeks to
achieve its investment objective by investing in a balanced portfolio
diversified among both equity and fixed-income securities.

     Balanced Fund is intended to provide a foundation on which an investor can
build an investment portfolio or to serve as the core of an investment program,
depending on the investor's goals. Balanced Fund is designed for relatively
conservative investors who seek a combination of long-term capital growth and
current income in a single investment.  Balanced Fund offers a portfolio of
equity and fixed-income securities intended to provide less volatility than a
portfolio completely invested in equity securities and greater diversification
than a portfolio invested in only one asset class.  Balanced Fund may be
appropriate for people who seek capital appreciation but are concerned about the
volatility typically associated with a fund that invests solely in stocks and
other equity securities.

FIXED-INCOME STRATEGIES DESIGNED TO MAXIMIZE RETURN AND MANAGE RISK
- -------------------------------------------------------------------

     GSAM's approach to managing the fixed-income portion of Balanced Fund's
portfolio seeks to provide high returns relative to a market benchmark, the
Lehman Brothers Aggregate Bond Index, while also seeking to provide high current
income.  This approach emphasizes (1) sector allocation strategies which enable
GSAM to tactically overweight or underweight one sector of the fixed-income
market (i.e., mortgages, corporate bonds, U.S. Treasuries, non-dollar bonds,
emerging market debt) versus another; (2) individual security selection based on
identifying relative value (fixed-income securities inexpensive relative to
others in their sector); and (3) to a lesser extent, strategies based on GSAM's
expectation of the direction of interest rates or the spread between short-term
and long-term interest rates such as yield curve strategy.

     GSAM seeks to manage fixed-income portfolio risk in a number of ways.
These include diversifying the fixed-income portion of the Balanced Fund's
portfolio among various types of fixed-income securities and utilizing
sophisticated quantitative models to understand how the fixed-income portion of
the portfolio will perform under a  variety of market and economic scenarios.
In addition, GSAM uses extensive credit analysis to select and to monitor any
investment-grade or non-investment grade bonds that may be included in the
Balanced Fund's portfolio.  In employing this and other investment strategies,
the GSAM team has access to extensive fundamental research and analysis
available through Goldman Sachs and a broad range of other sources.

     A number of investment strategies will be used in selecting fixed-income
securities for the Fund's portfolio.  GSAM's fixed-income investment philosophy
is to actively manage the portfolio within a risk-controlled framework.  The
Adviser de-emphasizes interest rate anticipation by 

                                      B-5
<PAGE>
 
monitoring the duration of the portfolio within a narrow range of the Adviser's
target duration, and instead focuses on seeking to add value through sector
selection, security selection and yield curve strategies.

     MARKET SECTOR SELECTION.  Market sector selection is the underweighting or
overweighting of one or more market sectors (i.e., U.S. Treasuries, U.S.
Government agency securities, corporate securities, mortgage-backed securities
and asset-backed securities).  GSAM may decide to overweight or underweight a
given market sector or subsector (e.g., within the corporate sector,
industrials, financial issuers and utilities) based on, among other things,
expectations of future yield spreads between different sectors or subsectors.

     ISSUER SELECTION.  Issuer selection is the purchase and sale of corporate
securities based on a corporation's current and expected credit standing (within
the constraints imposed by Balanced Fund's minimum credit quality requirements).
This strategy focuses on four types of investment-grade corporate issuers.
Selection of securities from the first type of issuers - those with low but
stable credit - is intended to enhance total returns by providing incremental
yield.  Selecting securities from the second type of issuers - those with low
and intermediate but improving credit quality - is intended to enhance total
returns in two stages.  Initially, these securities are expected to provide
incremental yield.  Eventually, price appreciation should occur relative to
alternative securities as credit quality improves, the nationally recognized
statistical rating organizations upgrade credit ratings, and credit spreads
narrow.  Securities from the third type of issuers - issuers with deteriorating
credit quality - will be avoided, since total returns are typically enhanced by
avoiding the widening of credit spreads and the consequent relative price
depreciation.  Finally, total returns can be enhanced by focusing on securities
that are rated differently by different rating organizations.  If the securities
are trading in line with the higher published quality rating while GSAM concurs
with the lower published quality rating, the securities would generally be sold
and any potential price deterioration avoided.  On the other hand, if the
securities are trading in line with the lower published quality rating while the
higher published quality rating is considered more realistic, the securities may
be purchased in anticipation of the expected market reevaluation and relative
price appreciation.

     YIELD CURVE STRATEGY.  Yield curve strategy consists of overweighting or
underweighting different maturity sectors relative to a benchmark to take
advantage of the shape of the yield curve.  Three alternative maturity sector
selections are available:  a "barbell" strategy in which short and long maturity
sectors are overweighted while intermediate maturity sectors are underweighted;
a "bullet" strategy in which, conversely, short-and long-maturity sectors are
underweighted while intermediate-maturity sectors are overweighted; and a
"neutral yield curve" strategy in which the maturity distribution mirrors that
of a benchmark.

CORE LARGE CAP VALUE, CORE U.S. EQUITY, CORE LARGE CAP GROWTH, CORE SMALL CAP
EQUITY AND CORE INTERNATIONAL EQUITY FUNDS                                  
- --------------------------------------------------------------------------------

     Under normal circumstances, these Funds will invest at least 90% of their
total assets in equity securities.

     The investment strategy of the CORE Large Cap Value, CORE U.S. Equity, CORE
Large Cap Growth, CORE Small Cap Equity and CORE International Equity Funds will
be implemented 

                                      B-6
<PAGE>
 
to the extent it is consistent with maintaining a Fund's qualification as a
regulated investment company under the Internal Revenue Code.

     Since normal settlement for equity securities is three trading days (for
certain international markets settlement may be longer), the Funds will need to
hold cash balances to satisfy shareholder redemption requests.  Such cash
balances will normally range from 2% to 5% of a Fund's net assets. The CORE
Large Cap Value, CORE U.S. Equity and CORE Large Cap Equity Funds may purchase
futures contracts only with respect to the S&P 500 Index (in the case of CORE
U.S. Equity Fund) and a representative index (in the case of CORE Large Cap
Value, CORE Large Cap Growth Funds) in order to keep a Fund's effective equity
exposure close to 100%.  The CORE Small Cap Equity and CORE International Equity
Funds may purchase other types of futures contracts as described under
"Investment Policies  Futures Contracts and Options on Futures Contracts."  The
other Funds may purchase and sell futures contracts based on various securities
(such as U.S. Government Securities), securities indicies, foreign currencies
and other financial instruments and indicies.  For example, if cash balances are
equal to 10% of the net assets, the Fund may enter into long futures contracts
covering an amount equal to 10% of the Fund's net assets.  As cash balances
fluctuate based on new contributions or withdrawals, a Fund may enter into
additional contracts or close out existing positions.

     THE MULTIFACTOR MODELS.  The Multifactor Models are rigorous computerized
rating systems for evaluating different equity markets, currencies and
individual equity securities according to a variety of investment
characteristics (or factors).  The factors used by the Multifactor Models
incorporate many variables studied by traditional fundamental analysts and cover
measures of value, growth, momentum, risk (e.g. price/earnings ratio, book/price
ratio, growth forecasts, earning estimate revisions, price momentum, volatility
and earnings stability).  All of these factors have been shown to significantly
impact the performance of  the equity securities, currencies and markets they
were designated to forecast.

     Because they include many disparate factors, the Adviser believes that the
Multifactor Models are broader in scope and provide a more thorough evaluation
than most conventional, value-oriented quantitative models.  As a result, the
securities, currencies and markets ranked highest by the Multifactor Models do
not have one dominant investment characteristic (such as a low price/earnings
ratio); rather, such securities or markets possess many different investment
characteristics.  By using a variety of relevant factors to select securities,
currencies or markets, the Adviser believes that the Fund will be better
balanced and have more consistent performance than an investment portfolio that
uses only one or two factors to select such investments.

     The Adviser will monitor, and may occasionally suggest and make changes to,
the method by which securities, currencies or markets are selected for or
weighted in a Fund.  Such changes (which may be the result of changes in the
Multifactor Models or the method of applying the Multifactor Models) may
include: (i) evolutionary changes to the structure of the Multifactor Models
(e.g., the addition of new factors or a new means of weighting the factors);
(ii) changes in trading procedures (e.g., trading frequency or the manner in
which a Fund uses futures); or (iii) changes in the method by which securities,
currencies or markets are weighted in a Fund.  Any such changes will preserve a
Fund's basic investment philosophy of combining qualitative and quantitative
methods of selecting securities using a disciplined investment process.

                                      B-7
<PAGE>
 
INTERNATIONAL EQUITY FUND
- -------------------------

     International Equity Fund will seek to achieve its investment objective by
investing primarily in equity and equity-related securities of issuers that are
organized outside the United States or whose securities are principally traded
outside the United States.  Because research coverage outside the United States
is fragmented and relatively unsophisticated, many foreign companies that are
well-positioned to grow and prosper have not come to the attention of investors.
GSAMI believes that the high historical returns and less efficient pricing of
foreign markets create favorable conditions for the International Equity Fund's
highly focused investment approach.  For a description of the risks of the
International Equity Fund's investments in Asia, see "Investing in Emerging
Markets, including Asia and Eastern European."

     A RIGOROUS PROCESS OF STOCK SELECTION.  Using fundamental industry and
company research, GSAMI's equity team in London, Singapore and Tokyo seeks to
identify companies that may achieve superior long-term returns.  Stocks are
carefully selected for International Equity Fund's portfolio through a three-
stage investment process.  Because the International Equity Fund is a long-term
holder of stocks, the portfolio managers adjust the Fund's portfolio only when
expected returns fall below acceptable levels or when the portfolio managers
identify substantially more attractive investments.

     Using the research of Goldman Sachs as well as information gathered from
other sources in Europe and the Asia-Pacific region, the Adviser seeks to
identify attractive industries around the world.  Such industries are expected
to have favorable underlying economics and allow companies to generate
sustainable and predictable high returns.  As a rule, they are less economically
sensitive, relatively free of regulation and favor strong franchises.

     Within these industries the Adviser seeks to identify well-run companies
that enjoy a stable competitive advantage and are able to benefit from the
favorable dynamics of the industry.  This stage includes analyzing the current
and expected financial performance of the company; contacting suppliers,
customers and competitors; and meeting with management.  In particular, the
portfolio managers look for companies whose managers have a strong commitment to
both maintaining the high returns of the existing business and reinvesting the
capital generated at high rates of return.  Management should act in the
interests of the owners and seek to maximize returns to all stockholders.

     GSAMI's currency team manages the foreign exchange risk embedded in foreign
equities by means of a currency overlay program.  The program may be utilized to
protect the value of foreign investments in sustained periods of dollar
appreciation and to add returns by seeking to take advantage of foreign exchange
fluctuations.

     The members of GSAMI's international equity team bring together years of
experience in analyzing and investing in companies in Europe and the Asia-
Pacific region.  Their expertise spans a wide range of skills including
investment analysis, investment management, investment banking and business
consulting.  GSAM's worldwide staff of over 300 professionals includes portfolio
managers based in London, Singapore and Tokyo who bring firsthand knowledge of
their local markets and companies to every investment decision.

                                      B-8
<PAGE>
 
CORPORATE DEBT OBLIGATIONS
- --------------------------

     Each Fund may, under normal market conditions, invest in corporate debt
obligations, including obligations of industrial, utility and financial issuers.
CORE Large Cap Value, CORE U.S. Equity, CORE Large Cap Growth, CORE Small Cap
Equity and CORE International Equity Funds may only invest in debt securities
that are cash equivalents. Corporate debt obligations are subject to the risk of
an issuer's inability to meet principal and interest payments on the obligations
and may also be subject to price volatility due to such factors as market
interest rates, market perception of the creditworthiness of the issuer and
general market liquidity.

     An economic downturn could severely affect the ability of highly leveraged
issuers of junk bond securities to service their debt obligations or to repay
their obligations upon maturity.  Factors having an adverse impact on the market
value of junk bonds will have an adverse effect on a Fund's net asset value to
the extent it invests in such securities.  In addition, a Fund may incur
additional expenses to the extent it is required to seek recovery upon a default
in payment of principal or interest on its portfolio holdings.

     The secondary market for junk bonds, which is concentrated in relatively
few market makers, may not be as liquid as the secondary market for more highly
rated securities.  This reduced liquidity may have an adverse effect on the
ability of Balanced, Growth and Income, Capital Growth, Mid Cap Equity, Small
Cap Value, International Equity, European Equity, Japanese Equity, International
Small Cap, Emerging Markets Equity, Asia Growth and Real Estate Securities Funds
to dispose of a particular security when necessary to meet their redemption
requests or other liquidity needs.  Under adverse market or economic conditions,
the secondary market for junk bonds could contract further, independent of any
specific adverse changes in the condition of a particular issuer.  As a result,
the Advisers could find it difficult to sell these securities or may be able to
sell the securities only at prices lower than if such securities were widely
traded.  Prices realized upon the sale of such lower rated or unrated
securities, under such circumstances, may be less than the prices used in
calculating a Fund's net asset value.

     Since investors generally perceive that there are greater risks associated
with the medium to lower rated securities of the type in which Balanced, Growth
and Income, Capital Growth, Mid Cap Equity, Small Cap Value, International
Equity, European Equity, Japanese Equity, International Small Cap, Emerging
Markets Equity, Asia Growth and Real Estate Securities Funds may invest, the
yields and prices of such securities may tend to fluctuate more than those for
higher rated securities.  In the lower quality segments of the fixed-income
securities market, changes in perceptions of issuers' creditworthiness tend to
occur more frequently and in a more pronounced manner than do changes in higher
quality segments of the fixed-income securities market, resulting in greater
yield and price volatility.

     Another factor which causes fluctuations in the prices of fixed-income
securities is the supply and demand for similarly rated securities.  In
addition, the prices of fixed-income securities fluctuate in response to the
general level of interest rates.  Fluctuations in the prices of portfolio
securities subsequent to their acquisition will not affect cash income from such
securities but will be reflected in a Fund's net asset value.

                                      B-9
<PAGE>
 
     Medium to lower rated and comparable non-rated securities tend to offer
higher yields than higher rated securities with the same maturities because the
historical financial condition of the issuers of such securities may not have
been as strong as that of other issuers.  Since medium to lower rated securities
generally involve greater risks of loss of income and principal than higher
rated securities, investors should consider carefully the relative risks
associated with investment in securities which carry medium to lower ratings and
in comparable unrated securities.  In addition to the risk of default, there are
the related costs of recovery on defaulted issues.  The Advisers will attempt to
reduce these risks through portfolio diversification and by analysis of each
issuer and its ability to make timely payments of income and principal, as well
as broad economic trends and corporate developments.

ZERO COUPON BONDS
- -----------------

     A Fund's investments in fixed-income securities may include zero coupon
bonds, which are debt obligations issued or purchased at a significant discount
from face value.  The discount approximates the total amount of interest the
bonds would have accrued and compounded over the period until maturity.  Zero
coupon bonds do not require the periodic payment of interest.  Such investments
benefit the issuer by mitigating its need for cash to meet debt service but also
require a higher rate of return to attract investors who are willing to defer
receipt of such cash.  Such investments may experience greater volatility in
market value than debt obligations which provide for regular payments of
interest.  In addition, if an issuer of zero coupon bonds held by a Fund
defaults, the Fund may obtain no return at all on its investment.  Each Fund
will accrue income on such investments for each taxable year which (net of
deductible expenses, if any) is distributable to shareholders and which, because
no cash is generally received at the time of accrual, may require the
liquidation of other portfolio securities to obtain sufficient cash to satisfy
the Fund's distribution obligations.  See "Taxation."

VARIABLE AND FLOATING RATE SECURITIES
- -------------------------------------

     The interest rates payable on certain fixed-income securities in which a
Fund may invest are not fixed and may fluctuate based upon changes in market
rates.  A variable rate obligation has an interest rate which is adjusted at
predesignated periods in response to changes in the market rate of interest on
which the interest rate is based.  Variable and floating rate obligations are
less effective than fixed rate instruments at locking in a particular yield.
Nevertheless, such obligations may fluctuate in value in response to interest
rate changes if there is a delay between changes in market interest rates and
the interest reset date for the obligation.

                                      B-10
<PAGE>
 
CUSTODIAL RECEIPTS
- ------------------

     Each Fund may invest up to 5% of its net assets in custodial receipts in
respect of securities issued or guaranteed as to principal and interest by the
U.S. Government, its agencies, instrumentalities, political subdivisions or
authorities.  Such custodial receipts evidence ownership of future interest
payments, principal payments or both on certain notes or bonds issued by the
U.S. Government, its agencies, instrumentalities, political subdivisions or
authorities.  These custodial receipts are known by various names, including
"Treasury Receipts," "Treasury Investors Growth Receipts" ("TIGRs"), and
"Certificates of Accrual on Treasury Securities" ("CATs"). For securities law
purposes, custodial receipts are not considered U.S. Government securities.

MUNICIPAL SECURITIES
- --------------------

     Balanced Fund may invest up to 5% of its net assets in municipal
securities.  Municipal securities consist of bonds, notes and other instruments
issued by or on behalf of states, territories and possessions of the United
States (including the District of Columbia) and their political subdivisions,
agencies or instrumentalities, the interest on which is exempt from regular
federal income tax.  Municipal securities are often issued to obtain funds for
various public purposes.  Municipal securities also include "private activity
bonds" or industrial development bonds, which are issued by or on behalf of
public authorities to obtain funds for privately operated facilities, such as
airports and waste disposal facilities, and, in some cases, commercial and
industrial facilities.

     The yields and market values of municipal securities are determined
primarily by the general level of interest rates, the creditworthiness of the
issuers of municipal securities and economic and political conditions affecting
such issuers.  Due to their tax exempt status, the yields and market prices of
municipal securities may be adversely affected by changes in tax rates and
policies, which may have less effect on the market for taxable fixed-income
securities.  Moreover, certain types of municipal securities, such as housing
revenue bonds, involve prepayment risks which could affect the yield on such
securities.

     Investments in municipal securities are subject to the risk that the issuer
could default on its obligations.  Such a default could result from the
inadequacy of the sources or revenues from which interest and principal payments
are to be made or the assets collateralizing such obligations.  Revenue bonds,
including private activity bonds, are backed only by specific assets or revenue
sources and not by the full faith and credit of the governmental issuer.

MORTGAGE-BACKED SECURITIES
- --------------------------

     GENERAL CHARACTERISTICS.  Each Fund (other than CORE Large Cap Value, CORE
U.S. Equity, CORE Large Cap Growth, CORE Small Cap Equity and CORE International
Equity Funds) may invest in mortgage-backed securities.  Each mortgage pool
underlying mortgage-backed securities consists of mortgage loans evidenced by
promissory notes secured by first mortgages or first deeds of trust or other
similar security instruments creating a first lien on owner occupied and non-
owner occupied one-unit to four-unit residential properties, multifamily (i.e.,
five or more) properties, agriculture properties, commercial properties and
mixed use properties (the "Mortgaged Properties").  The Mortgaged Properties may
consist of detached individual dwelling units, multifamily dwelling units,
individual condominiums, townhouses, duplexes, triplexes, 

                                      B-11
<PAGE>
 
fourplexes, row houses, individual units in planned unit developments and other
attached dwelling units. The Mortgaged Properties may also include residential
investment properties and second homes.

     The investment characteristics of adjustable and fixed rate mortgage-backed
securities differ from those of traditional fixed-income securities.  The major
differences include the payment of interest and principal on mortgage-backed
securities on a more frequent (usually monthly) schedule, and the possibility
that principal may be prepaid at any time due to prepayments on the underlying
mortgage loans or other assets.  These differences can result in significantly
greater price and yield volatility than is the case with traditional fixed-
income securities.  As a result, if a Fund purchases mortgage-backed securities
at a premium, a faster than expected prepayment rate will reduce both the market
value and the yield to maturity from those which were anticipated.  A prepayment
rate that is slower than expected will have the opposite effect of increasing
yield to maturity and market value.  Conversely, if a Fund purchases mortgage-
backed securities at a discount, faster than expected prepayments will increase,
while slower than expected prepayments will reduce yield to maturity and market
values.  To the extent that a Fund invests in mortgage-backed securities, the
Advisers may seek to manage these potential risks by investing in a variety of
mortgage-backed securities and by using certain hedging techniques.

     GOVERNMENT GUARANTEED MORTGAGE-BACKED SECURITIES.  There are several types
of guaranteed mortgage-backed securities currently available, including
guaranteed mortgage pass-through certificates and multiple class securities,
which include guaranteed Real Estate Mortgage Investment Conduit Certificates
("REMIC Certificates"), collateralized mortgage obligations and stripped
mortgage-backed securities.  A Fund is permitted to invest in other types of
mortgage-backed securities that may be available in the future to the extent
consistent with its investment policies and objective.

     A Fund's investments in mortgage-backed securities may include securities
issued or guaranteed by the U.S. Government or one of its agencies, authorities,
instrumentalities or sponsored enterprises, such as the Government National
Mortgage Association ("Ginnie Mae"), the Federal National Mortgage Association
("Fannie Mae") and the Federal Home Loan Mortgage Corporation ("Freddie Mac").

     GINNIE MAE CERTIFICATES.  Ginnie Mae is a wholly-owned corporate
instrumentality of the United States.  Ginnie Mae is authorized to guarantee the
timely payment of the principal of and interest on certificates that are based
on and backed by a pool of mortgage loans insured by the Federal Housing
Administration ("FHA Loans"), or guaranteed by the Veterans Administration ("VA
Loans"), or by pools of other eligible mortgage loans.  In order to meet its
obligations under any guaranty, Ginnie Mae is authorized to borrow from the
United States Treasury in an unlimited amount.

     FANNIE MAE CERTIFICATES.  Fannie Mae is a stockholder-owned corporation
chartered under an act of the United States Congress. Each Fannie Mae
Certificate is issued and guaranteed by Fannie Mae and represents an undivided
interest in a pool of mortgage loans (a "Pool") formed by Fannie Mae.  Each Pool
consists of residential mortgage loans ("Mortgage Loans") either previously
owned by Fannie Mae or purchased by it in connection with the formation of the
Pool.  The Mortgage Loans may be either conventional Mortgage Loans (i.e., not
insured or guaranteed 

                                      B-12
<PAGE>
 
by any U.S. Government agency) or Mortgage Loans that are either insured by the
Federal Housing Administration ("FHA") or guaranteed by the Veterans
Administration ("VA"). However, the Mortgage Loans in Fannie Mae Pools are
primarily conventional Mortgage Loans. The lenders originating and servicing the
Mortgage Loans are subject to certain eligibility requirements established by
Fannie Mae.

     Fannie Mae has certain contractual responsibilities.  With respect to each
Pool, Fannie Mae is obligated to distribute scheduled monthly installments of
principal and interest after Fannie Mae's servicing and guaranty fee, whether or
not received, to Certificate holders.  Fannie Mae also is obligated to
distribute to holders of Certificates an amount equal to the full principal
balance of any foreclosed Mortgage Loan, whether or not such principal balance
is actually recovered.  The obligations of Fannie Mae under its guaranty of the
Fannie Mae Certificates are obligations solely of Fannie Mae.

     FREDDIE MAC CERTIFICATES.  Freddie Mac is a publicly held U.S. Government
sponsored enterprise.  The principal activity of Freddie Mac currently is the
purchase of first lien, conventional, residential mortgage loans and
participation interests in such mortgage loans and their resale in the form of
mortgage securities, primarily Freddie Mac Certificates.  A Freddie Mac
Certificate represents a pro rata interest in a group of mortgage loans or
participation in mortgage loans (a "Freddie Mac Certificate group") purchased by
Freddie Mac.

     Freddie Mac guarantees to each registered holder of a Freddie Mac
Certificate the timely payment of interest at the rate provided for by such
Freddie Mac Certificate (whether or not received on the underlying loans).
Freddie Mac also guarantees to each registered Certificate holder ultimate
collection of all principal of the related mortgage loans, without any offset or
deduction, but does not, generally, guarantee the timely payment of scheduled
principal.  The obligations of Freddie Mac under its guaranty of Freddie Mac
Certificates are obligations solely of Freddie Mac.

     The mortgage loans underlying the Freddie Mac and Fannie Mae Certificates
consist of adjustable rate or fixed rate mortgage loans with original terms to
maturity of between five and thirty years.  Substantially all of these mortgage
loans are secured by first liens on one-to-four-family residential properties or
multifamily projects.  Each mortgage loan must meet the applicable standards set
forth in the law creating Freddie Mac or Fannie Mae.  A Freddie Mac Certificate
group may include whole loans, participation interests in whole loans and
undivided interests in whole loans and participations comprising another Freddie
Mac Certificate group.

     MORTGAGE PASS-THROUGH SECURITIES.  Each Fund (other than CORE Large Cap
Value, CORE U.S. Equity, CORE Large Cap Growth, CORE Small Cap Equity and CORE
International Equity Funds) may invest in both government guaranteed and
privately issued mortgage pass-through securities ("Mortgage Pass-Throughs");
that is, fixed or adjustable rate mortgage-backed securities which provide for
monthly payments that are a "pass-through" of the monthly interest and principal
payments (including any prepayments) made by the individual borrowers on the
pooled mortgage loans, net of any fees or other amounts paid to any guarantor,
administrator and/or servicer of the underlying mortgage loans.

                                      B-13
<PAGE>
 
     The following discussion describes only a few of the wide variety of
structures of Mortgage Pass-Throughs that are available or may be issued.

     DESCRIPTION OF CERTIFICATES.  Mortgage Pass-Throughs may be issued in one
or more classes of senior certificates and one or more classes of subordinate
certificates.  Each such class may bear a different pass-through rate.
Generally, each certificate will evidence the specified interest of the holder
thereof in the  payments of principal or interest or both in respect of the
mortgage pool comprising part of the trust fund for such certificates.

     Any class of certificates may also be divided into subclasses entitled to
varying amounts of principal and interest.  If a REMIC election has been made,
certificates of such subclasses may be entitled to payments on the basis of a
stated principal balance and stated interest rate, and payments among different
subclasses may be made on a sequential, concurrent, pro rata or disproportionate
                                                    --------                    
basis, or any combination thereof.  The stated interest rate on any such
subclass of certificates may be a fixed rate or one which varies in direct or
inverse relationship to an objective interest index.

     Generally, each registered holder of a certificate will be entitled to
receive its pro rata share of monthly distributions of all or a portion of
            --------                                                      
principal of the underlying mortgage loans or of interest on the principal
balances thereof, which accrues at the applicable mortgage pass-through rate, or
both.  The difference between the mortgage interest rate and the related
mortgage pass-through rate (less the amount, if any, of retained yield) with
respect to each mortgage loan will generally be paid to the servicer as a
servicing fee.  Since certain adjustable rate mortgage loans included in a
mortgage pool may provide for deferred interest (i.e., negative amortization),
the amount of interest actually paid by a mortgagor in any month may be less
than the amount of interest accrued on the outstanding principal balance of the
related mortgage loan during the relevant period at the applicable mortgage
interest rate.  In such event, the amount of interest that is treated as
deferred interest will be added to the principal balance of the related mortgage
loan and will be distributed pro rata to certificate-holders as principal of
                             --------                                       
such mortgage loan when paid by the mortgagor in subsequent monthly payments or
at maturity.

     RATINGS.  The ratings assigned by a rating organization to Mortgage Pass-
Throughs address the likelihood of the receipt of all distributions on the
underlying mortgage loans by the related certificate-holders under the
agreements  pursuant to which such certificates are issued.  A rating
organization's ratings take into consideration the credit quality of the related
mortgage pool, including any credit support providers, structural and legal
aspects associated with such certificates, and the extent to which the payment
stream on such mortgage pool is adequate to make payments required by such
certificates.  A rating organization's ratings on such certificates do not,
however, constitute a statement regarding frequency of prepayments on the
related mortgage loans.  In addition, the rating assigned by a rating
organization to a certificate does not address the remote possibility that, in
the event of the insolvency of the issuer of certificates where a subordinated
interest was retained, the issuance and sale of the senior certificates may be
recharacterized as a financing and, as a result of such recharacterization,
payments on such certificates may be affected.

     CREDIT ENHANCEMENT.  Credit support falls generally into two categories:
(i) liquidity protection and (ii) protection against losses resulting from
default by an obligor on the underlying assets.  Liquidity protection refers to
the provision of advances, generally by the entity administering the pools of
mortgages, the provision of a reserve fund, or a combination thereof, to 

                                      B-14
<PAGE>
 
ensure, subject to certain limitations, that scheduled payments on the
underlying pool are made in a timely fashion. Protection against losses
resulting from default ensures ultimate payment of the obligations on at least a
portion of the assets in the pool. Such credit support can be provided by among
other things, payment guarantees, letters of credit, pool insurance,
subordination, or any combination thereof.

     SUBORDINATION; SHIFTING OF INTEREST; RESERVE FUND.  In order to achieve
ratings on one or more classes of Mortgage Pass-Throughs, one or more classes of
certificates may be subordinate certificates which provide that the rights of
the subordinate certificate-holders to receive any or a specified portion of
distributions with respect to the underlying mortgage loans may be subordinated
to the rights of the senior certificate-holders.  If so structured, the
subordination feature may be enhanced by distributing to the senior certificate-
holders on certain distribution dates, as payment of principal, a specified
percentage (which generally declines over time) of all principal payments
received during the preceding prepayment period ("shifting interest credit
enhancement").  This will have the effect of accelerating the amortization of
the senior certificates while increasing the interest in the trust fund
evidenced by the subordinate certificates.  Increasing the interest of the
subordinate certificates relative to that of the senior certificates is intended
to preserve the availability of the subordination provided by the subordinate
certificates.  In addition, because the senior certificate-holders in a shifting
interest credit enhancement structure are entitled to receive a percentage of
principal prepayments which is greater than their proportionate interest in the
trust fund, the rate of principal prepayments on the mortgage loans will have an
even greater effect on the rate of principal payments and the amount of interest
payments on, and the yield to maturity of, the senior certificates.

     In addition to providing for a preferential right of the senior
certificate-holders to receive current distributions from the mortgage pool, a
reserve fund may be established relating to such certificates (the "Reserve
Fund").  The Reserve Fund may be created with an initial cash deposit by the
originator or servicer and augmented by the retention of distributions otherwise
available to the subordinate certificate-holders or by excess servicing fees
until the Reserve Fund reaches a specified amount.

     The subordination feature, and any Reserve Fund, are intended to enhance
the likelihood of timely receipt by senior certificate-holders of the full
amount of scheduled monthly payments of principal and interest due them and will
protect the senior certificate-holders against certain losses; however, in
certain circumstances the Reserve Fund could be depleted and temporary
shortfalls could result.  In the event the Reserve Fund is depleted before the
subordinated amount is reduced to zero, senior certificate-holders will
nevertheless have a preferential right to receive current distributions from the
mortgage pool to the extent of the then outstanding subordinated amount.  Unless
otherwise specified, until the subordinated amount is reduced to zero, on any
distribution date any amount otherwise distributable to the subordinate
certificates or, to the extent specified, in the Reserve Fund will generally be
used to offset the amount of any losses realized with respect to the mortgage
loans ("Realized Losses").  Realized Losses remaining after application of such
amounts will generally be applied to reduce the ownership interest of the
subordinate certificates in the mortgage pool.  If the subordinated amount has
been reduced to zero, Realized Losses generally will be allocated pro rata among
                                                                  --------      
all certificate-holders in proportion to their respective outstanding interests
in the mortgage pool.

                                      B-15
<PAGE>
 
     ALTERNATIVE CREDIT ENHANCEMENT.  As an alternative, or in addition to the
credit enhancement afforded by subordination, credit enhancement for Mortgage
Pass-Throughs may be provided by mortgage insurance, hazard insurance, by the
deposit of cash, certificates of deposit, letters of credit, a limited guaranty
or by such other methods as are acceptable to a rating agency.  In certain
circumstances, such as where credit enhancement is provided by guarantees or a
letter of credit, the security is subject to credit risk because of its exposure
to an external credit enhancement provider.

     VOLUNTARY ADVANCES.  Generally, in the event of delinquencies in payments
on the mortgage loans underlying the Mortgage Pass-Throughs, the servicer agrees
to make advances of cash for the benefit of certificate-holders, but only to the
extent that it determines such voluntary advances will be recoverable from
future payments and collections on the mortgage loans or otherwise.

     OPTIONAL TERMINATION.  Generally, the servicer may, at its option with
respect to any certificates, repurchase all of the underlying mortgage loans
remaining outstanding at such time as the aggregate outstanding principal
balance of such mortgage loans is less than a specified percentage (generally 5-
10%) of the aggregate outstanding principal balance of the mortgage loans as of
the cut-off date specified with respect to such series.

     MULTIPLE CLASS MORTGAGE-BACKED SECURITIES AND COLLATERALIZED MORTGAGE
OBLIGATIONS.  A Fund may invest in multiple class securities including
collateralized mortgage obligations ("CMOs") and REMIC Certificates.  These
securities may be issued by U.S. Government agencies and instrumentalities such
as Fannie Mae or Freddie Mac or by trusts formed by private originators of, or
investors in, mortgage loans, including savings and loan associations, mortgage
bankers, commercial banks, insurance companies, investment banks and special
purpose subsidiaries of the foregoing.  In general, CMOs are debt obligations of
a legal entity that are collateralized by, and multiple class mortgage-backed
securities represent direct ownership interests in, a pool of mortgage loans or
mortgage-backed securities the payments on which are used to make payments on
the CMOs or multiple class mortgage-backed securities.

     Fannie Mae REMIC Certificates are issued and guaranteed as to timely
distribution of principal and interest by Fannie Mae.  In addition, Fannie Mae
will be obligated to distribute the principal balance of each class of REMIC
Certificates in full, whether or not sufficient funds are otherwise available.

     Freddie Mac guarantees the timely payment of interest on Freddie Mac REMIC
Certificates and also guarantees the payment of principal as payments are
required to be made on the underlying mortgage participation certificates
("PCs").  PCs represent undivided interests in specified level payment,
residential mortgages or participation therein purchased by Freddie Mac and
placed in a PC pool.  With respect to principal payments on PCs, Freddie Mac
generally guarantees ultimate collection of all principal of the related
mortgage loans without offset or deduction.  Freddie Mac also guarantees timely
payment of principal of certain PCs.

     CMOs and guaranteed REMIC Certificates issued by Fannie Mae and Freddie Mac
are types of multiple class mortgage-backed securities.  Investors may purchase
beneficial interests in REMICs, which are known as "regular" interests or
"residual" interests. The Funds do not intend to

                                     B-16
<PAGE>
 
purchase residual interests in REMICs. The REMIC Certificates represent
beneficial ownership interests in a REMIC trust, generally consisting of
mortgage loans or Fannie Mae, Freddie Mac or Ginnie Mae guaranteed mortgage-
backed securities (the "Mortgage Assets"). The obligations of Fannie Mae or
Freddie Mac under their respective guaranty of the REMIC Certificates are
obligations solely of Fannie Mae or Freddie Mac, respectively.

     CMOs and REMIC Certificates are issued in multiple classes.  Each class of
CMOs or REMIC Certificates, often referred to as a "tranche," is issued at a
specific adjustable or fixed interest rate and must be fully retired no later
than its final distribution date.  Principal prepayments on the Mortgage Loans
or the Mortgage Assets underlying the CMOs or REMIC Certificates may cause some
or all of the classes of CMOs or REMIC Certificates to be retired substantially
earlier than their final distribution dates.  Generally, interest is paid or
accrues on all classes of CMOs or REMIC Certificates on a monthly basis.

     The principal of and interest on the Mortgage Assets may be allocated among
the several classes of CMOs or REMIC Certificates in various ways.  In certain
structures (known as "sequential pay" CMOs or REMIC Certificates), payments of
principal, including any principal prepayments, on the Mortgage Assets generally
are applied to the classes of CMOs or REMIC Certificates in the order of their
respective final distribution dates.  Thus, no payment of principal will be made
on any class of sequential pay CMOs or REMIC Certificates until all other
classes having an earlier final distribution date have been paid in full.

     Additional structures of CMOs and REMIC Certificates include, among others,
"parallel pay" CMOs and REMIC Certificates.  Parallel pay CMOs or REMIC
Certificates are those which are structured to apply principal payments and
prepayments of the Mortgage Assets to two or more classes concurrently on a
proportionate or disproportionate basis.  These simultaneous payments are taken
into account in calculating the final distribution date of each class.

     A wide variety of REMIC Certificates may be issued in parallel pay or
sequential pay structures.  These securities include accrual certificates (also
known as "Z-Bonds"), which only accrue interest at a specified rate until all
other certificates having an earlier final distribution date have been retired
and are converted thereafter to an interest-paying security, and planned
amortization class ("PAC") certificates, which are parallel pay REMIC
Certificates that generally require that specified amounts of principal be
applied on each payment date to one or more classes or REMIC Certificates (the
"PAC Certificates"), even though all other principal payments and prepayments of
the Mortgage Assets are then required to be applied to one or more other classes
of the Certificates.  The scheduled principal payments for the PAC Certificates
generally have the highest  priority on each payment date after interest due has
been paid to all classes entitled to receive interest currently.  Shortfalls, if
any, are added to the amount payable on the next payment date.  The PAC
Certificate payment schedule is taken into account in calculating the final
distribution date of each class of PAC.  In order to create PAC tranches, one or
more tranches generally must be created that absorb most of the volatility in
the underlying mortgage assets.  These tranches tend to have market prices and
yields that are much more volatile than other PAC classes.

     STRIPPED MORTGAGE-BACKED SECURITIES.  The Balanced and Real Estate
Securities Funds may invest in stripped mortgage-backed securities ("SMBS"),
which are derivative multiclass

                                     B-17
<PAGE>
 
mortgage securities. Although the market for such securities is increasingly
liquid, certain SMBS may not be readily marketable and will be considered
illiquid for purposes of the Fund's limitation on investments in illiquid
securities. The market value of the class consisting entirely of principal
payments generally is unusually volatile in response to changes in interest
rates. The yields on a class of SMBS that receives all or most of the interest
from Mortgage Assets are generally higher than prevailing market yields on other
mortgage-backed securities because their cash flow patterns are more volatile
and there is a greater risk that the initial investment will not be fully
recouped.

INVERSE FLOATING RATE SECURITIES
- --------------------------------

     Balanced Fund may invest up to 5% of its net assets in leveraged inverse
floating rate debt instruments ("inverse floaters").  The interest rate on an
inverse floater resets in the opposite direction from the market rate of
interest to which the inverse floater is indexed.  An inverse floater may be
considered to be leveraged to the extent that its interest rate varies by a
magnitude that exceeds the magnitude of the change in the index rate of
interest.  The higher degree of leverage inherent in inverse floaters is
associated with greater volatility in their market values.  Accordingly, the
duration of an inverse floater may exceed its stated final maturity.  Certain
inverse floaters may be deemed to be illiquid securities for purposes of the
Fund's 15% limitation on investments in such securities.

ASSET-BACKED SECURITIES
- -----------------------

     Asset-backed securities represent participation in, or are secured by and
payable from, assets such as motor vehicle installment sales, installment loan
contracts, leases of various types of real and personal property, receivables
from revolving credit (credit card) agreements and other categories of
receivables.  Such assets are securitized through the use of trusts and special
purpose corporations. Payments or distributions of principal and interest may be
guaranteed up to certain amounts and for a certain time period by a letter of
credit or a pool insurance policy issued by a financial institution unaffiliated
with the trust or corporation, or other credit enhancements may be present.

     Like mortgage-backed securities, asset-backed securities are often subject
to more rapid repayment than their stated maturity date would indicate as a
result of the pass-through of prepayments of principal on the underlying loans.
A Fund's ability to maintain positions in such securities will be affected by
reductions in the principal amount of such securities resulting from
prepayments, and its ability to reinvest the returns of principal at comparable
yields is subject to generally prevailing interest rates at that time.  To the
extent that a Fund invests in asset-backed securities, the values of such Fund's
portfolio securities will vary with changes in market interest rates generally
and the differentials in yields among various kinds of asset-backed securities.

     Asset-backed securities present certain additional risks that are not
presented by mortgage-backed securities because asset-backed securities
generally do not have the benefit of a security interest in collateral that is
comparable to mortgage assets. Credit card receivables are generally unsecured
and the debtors on such receivables are entitled to the protection of a number
of state and federal consumer credit laws, many of which give such debtors the
right to set-off certain amounts owed on the credit cards, thereby reducing the
balance due.  Automobile receivables generally are secured, but by automobiles
rather than residential real property.  Most

                                     B-18
<PAGE>
 
issuers of automobile receivables permit the loan servicers to retain possession
of the underlying obligations. If the servicer were to sell these obligations to
another party, there is a risk that the purchaser would acquire an interest
superior to that of the holders of the asset-backed securities. In addition,
because of the large number of vehicles involved in a typical issuance and
technical requirements under state laws, the trustee for the holders of the
automobile receivables may not have a proper security interest in the underlying
automobiles. Therefore, there is the possibility that, in some cases, recoveries
on repossessed collateral may not be available to support payments on these
securities.

LOAN PARTICIPATIONS
- -------------------

     The Balanced Fund may invest in loan participations.  Such loans must be to
issuers in whose obligations the Balanced Fund may invest.  A loan participation
is an interest in a loan to a U.S. or foreign company or other borrower which is
administered and sold by a financial intermediary.  In a typical corporate loan
syndication, a number of lenders, usually banks (co-lenders), lend a corporate
borrower a specified sum pursuant to the terms and conditions of a loan
agreement.  One of the co-lenders usually agrees to act as the agent bank with
respect to the loan.

     Participation interests acquired by the Balanced Fund may take the form of
a direct or co-lending relationship with the corporate borrower, an assignment
of an interest in the loan by a co-lender or another participant, or a
participation in the seller's share of the loan.  When the Balanced Fund acts as
co-lender in connection with a participation interest or when the Balanced Fund
acquires certain participation interests, the Balanced Fund will have direct
recourse against the borrower if the borrower fails to pay scheduled principal
and interest.  In cases where the Balanced Fund lacks direct recourse, it will
look to the agent bank to enforce appropriate credit remedies against the
borrower.  In these cases, the Balanced Fund may be subject to delays, expenses
and risks that are greater than those that would have been involved if the Fund
had purchased a direct obligation (such as commercial paper) of such borrower.
For example, in the event of the bankruptcy or insolvency of the corporate
borrower, a loan participation may be subject to certain defenses by the
borrower as a result of improper conduct by the agent bank.  Moreover, under the
terms of the loan participation, the Balanced Fund may be regarded as a creditor
of the agent bank (rather than of the underlying corporate borrower), so that
the Balanced Fund may also be subject to the risk that the agent bank may become
insolvent.  The secondary market, if any, for these loan participations is
limited and any loan participations purchased by the Balanced Fund will be
regarded as illiquid.

     For purposes of certain investment limitations pertaining to
diversification of the Balanced Fund's portfolio investments, the issuer of a
loan participation will be the underlying borrower.  However, in cases where the
Balanced Fund does not have recourse directly against the borrower, both the
borrower and each agent bank and co-lender interposed between the Balanced Fund
and the borrower will be deemed issuers of a loan participation.

FUTURES CONTRACTS AND OPTIONS ON FUTURES CONTRACTS
- --------------------------------------------------

     Each Fund may purchase and sell futures contracts and may also purchase and
write options on futures contracts.  CORE Large Cap Value, CORE U.S. Equity and
CORE Large Cap Growth Funds may only enter into such transactions with respect
to the S&P 500 Index, for the CORE U.S.

                                     B-19
<PAGE>
 
Equity Fund and a representative index in the case of the CORE Large Cap Value
and CORE Large Cap Growth Funds. The other Funds may purchase and sell futures
contracts based on various securities (such as U.S. Government securities),
securities indices, foreign currencies and other financial instruments and
indices. Each Fund will engage in futures and related options transactions, only
for bona fide hedging purposes as defined below or for purposes of seeking to
increase total return to the extent permitted by regulations of the Commodity
Futures Trading Commission ("CFTC"). Futures contracts entered into by a Fund
are traded on U.S. exchanges or boards of trade that are licensed and regulated
by the CFTC or on foreign exchanges. Neither the CFTC, National Futures
Association nor any domestic exchange regulates activities of any foreign
exchange or boards of trade, including the execution, delivery and clearing of
transactions, or has the power to compel enforcement of the rules of a foreign
exchange or board of trade or any applicable foreign law. This is true even if
the exchange is formally linked to a domestic market so that a position taken on
the market may be liquidated by a transaction on another market. Moreover, such
laws or regulations will vary depending on the foreign country in which the
foreign futures or foreign options transaction occurs. For these reasons,
persons who trade foreign futures or foreign options contracts may not be
afforded certain of the protective measures provided by the Commodity Exchange
Act, the CFTC's regulations and the rules of the National Futures Association
and any domestic exchange, including the right to use reparations proceedings
before the CFTC and arbitration proceedings provided by the National Futures
Association or any domestic futures exchange. In particular, a Fund's
investments in foreign futures or foreign options transactions may not be
provided the same protections in respect of transactions on United States
futures exchanges.

     FUTURES CONTRACTS.  A futures contract may generally be described as an
agreement between two parties to buy and sell particular financial instruments
for an agreed price during a designated month (or to deliver the final cash
settlement price, in the case of a contract relating to an index or otherwise
not calling for physical delivery at the end of trading in the contract).

     When interest rates are rising or securities prices are falling, a Fund can
seek through the sale of futures contracts to offset a decline in the value of
its current portfolio securities.  When rates are falling or prices are rising,
a Fund, through the purchase of futures contracts, can attempt to secure better
rates or prices than might later be available in the market when it effects
anticipated purchases.  Similarly, each Fund (other than CORE Large Cap Value,
CORE U.S. Equity, CORE Large Cap Growth and CORE Small Cap Equity Funds) can
sell futures contracts on a specified currency to protect against a decline in
the value of such currency and its portfolio securities which are quoted or
denominated in such currency. Each Fund (other than CORE Large Cap Value, CORE
U.S. Equity, CORE Large Cap Growth and CORE Small Cap Equity Funds) can purchase
futures contracts on foreign currency to establish the price in U.S. dollars of
a security quoted or denominated in such currency that such Fund has acquired or
expects to acquire.  The Balanced Fund may also use futures contracts to manage
the term structure and duration of its fixed-income securities holdings in
accordance with that Fund's investment objectives and policies.

     Positions taken in the futures market are not normally held to maturity,
but are instead liquidated through offsetting transactions which may result in a
profit or a loss.  While each  Fund will usually liquidate futures contracts on
securities or currency in this manner, a Fund may instead make or take delivery
of the underlying securities or currency whenever it appears economically
advantageous for the Fund to do so.  A clearing corporation associated with the
exchange on which

                                     B-20
<PAGE>
 
futures are traded guarantees that, if still open, the sale or purchase will be
performed on the settlement date.

     HEDGING STRATEGIES.  Hedging, by use of futures contracts, seeks to
establish with more certainty than would otherwise be possible the effective
price, rate of return or currency exchange rate on portfolio securities or
securities that a Fund owns or proposes to acquire.  A Fund may, for example,
take a "short" position in the futures market by selling futures contracts to
seek to hedge against an anticipated rise in interest rates or a decline in
market prices or (other than CORE Large Cap Value, CORE U.S. Equity, CORE Large
Cap Growth and CORE Small Cap Equity Funds) foreign currency rates that would
adversely affect the dollar value of such Fund's portfolio securities.
Similarly, each Fund (other than CORE Large Cap Value, CORE U.S. Equity, CORE
Large Cap Growth and CORE Small Cap Equity Funds) may sell futures contracts on
a currency in which its portfolio securities are quoted or denominated or in one
currency to seek to hedge against fluctuations in the value of securities quoted
or denominated in a different currency if there is an established historical
pattern of correlation between the two currencies.  If, in the opinion of the
applicable Adviser, there is a sufficient degree of correlation between price
trends for a Fund's portfolio securities and futures contracts based on other
financial instruments, securities indices or other indices, a Fund may also
enter into such futures contracts as part of its hedging strategy.  Although
under some circumstances prices of securities in a Fund's portfolio may be more
or less volatile than prices of  such futures contracts, the Advisers will
attempt to estimate the extent of this volatility difference based on historical
patterns and compensate for any such differential by having a Fund enter into a
greater or lesser number of futures contracts or by attempting to achieve only a
partial hedge against price changes affecting a Fund's securities portfolio.
When hedging of this character is successful, any depreciation in the value of
portfolio securities will be substantially offset by appreciation in the value
of the futures position.  On the other hand, any unanticipated appreciation in
the value of a Fund's portfolio securities would be substantially offset by a
decline in the value of the futures position.

     On other occasions, a Fund may take a "long" position by purchasing such
futures contracts.  This would be done, for example, when a Fund anticipates the
subsequent purchase of particular securities when it has the necessary cash, but
expects the prices or currency exchange rates then available in the applicable
market to be less favorable than prices or rates that are currently available.

     OPTIONS ON FUTURES CONTRACTS.  The acquisition of put and call options on
futures contracts will give a Fund the right (but not the obligation), for a
specified price, to sell or to purchase, respectively, the underlying futures
contract at any time during the option period.  As the purchaser of an option on
a futures contract, a Fund obtains the benefit of the futures position if prices
move in a favorable direction but limits its risk of loss in the event of an
unfavorable price movement to the loss of the premium and transaction costs.

     The writing of a call option on a futures contract generates a premium
which may partially offset a decline in the value of a Fund's assets.  By
writing a call option, a Fund becomes obligated, in exchange for the premium, to
sell a futures contract if the option is exercised, which may have a value
higher than the exercise price.  Conversely, the writing of a put option on a
futures contract generates a premium, which may partially offset an increase in
the price of securities that a Fund intends to purchase.  However, a Fund
becomes obligated to purchase a futures contract if the

                                     B-21
<PAGE>
 
option is exercised, which may have a value lower than the exercise price. Thus,
the loss incurred by a Fund in writing options on futures is potentially
unlimited and may exceed the amount of the premium received. A Fund will incur
transaction costs in connection with the writing of options on futures.

     The holder or writer of an option on a futures contract may terminate its
position by selling or purchasing an offsetting option on the same financial
instrument.  There is no guarantee that such closing transactions can be
effected.  A Fund's ability to establish and close out positions on such options
will be subject to the development and maintenance of a liquid market.

     OTHER CONSIDERATIONS.  Each Fund will engage in futures transactions and
will engage in related options transactions only for bona fide hedging as
defined in the regulations of the CFTC or to seek to increase total return to
the extent permitted by such regulations.  A Fund will determine that the price
fluctuations in the futures contracts and options on futures used for hedging
purposes are substantially related to price fluctuations in securities held by
the Fund or which it expects to purchase.  Except as stated below, each Fund's
futures transactions will be entered into for traditional hedging purposes --
i.e., futures contracts will be sold to protect against a decline in the price
of securities (or the currency in which they are quoted or denominated) that the
Fund owns, or futures contracts will be purchased to protect the Fund against an
increase in the price of securities (or the currency in which they are quoted or
denominated) it intends to purchase.

     In addition to bona fide hedging, a CFTC regulation permits a Fund to
engage in other future transactions if the aggregate initial margin and premiums
required to establish such positions in futures contracts and options on futures
do not exceed 5% of the net asset value of such Fund's portfolio, after taking
into account unrealized profits and losses on any such positions and excluding
the amount by which such options were in-the-money at the time of purchase.  A
Fund will engage in transactions in futures contracts and, for a Fund permitted
to do so, related options transactions only to the extent such transactions are
consistent  with the requirements of the Code for maintaining its qualification
as a regulated investment company for federal income tax purposes (see
"Taxation").

     Transactions in futures contracts and options on futures involve brokerage
costs, require margin deposits and, in certain cases, require the Fund to
segregate with its custodian cash or liquid assets in an amount equal to the
underlying value of such contracts and options.

     While transactions in futures contracts and options on futures may reduce
certain risks, such transactions themselves entail certain other risks.  Thus,
unanticipated changes in interest rates, securities prices or currency exchange
rates may result in a poorer overall performance for a Fund than if it had not
entered into any futures contracts or options transactions.  In the event of an
imperfect correlation between a futures position and a portfolio position which
is intended to be protected, the desired protection may not be obtained and a
Fund may be exposed to risk of loss.

     Perfect correlation between a Fund's futures positions and portfolio
positions will be difficult to achieve because no futures contracts based on
individual equity or corporate fixed-income securities are currently available.
In addition, it is not possible for a Fund to hedge fully or perfectly against
currency fluctuations affecting the value of securities quoted or denominated in

                                     B-22
<PAGE>
 
foreign currencies because the value of such securities is likely to fluctuate
as a result of independent factors not related to currency fluctuations.

OPTIONS ON SECURITIES AND SECURITIES INDICES
- --------------------------------------------

     WRITING COVERED OPTIONS.  Each Fund may write (sell) covered call and put
options on any securities in which it may invest (other than CORE Large Cap
Value, CORE U.S. Equity and CORE Large Cap Growth Funds).  A call option written
by a Fund obligates such Fund to sell specified securities to the holder of the
option at a specified price if the option is exercised at any time before the
expiration date.  All call options written by a Fund are covered, which means
that such Fund will own the securities subject to the option as  long as the
option is outstanding or such Fund will use the other methods described below.
A Fund's purpose in writing covered call options is to realize greater income
than would be realized on portfolio securities transactions alone.  However, a
Fund may forego the opportunity to profit from an increase in the market price
of the underlying security.

     A put option written by a Fund would obligate such Fund to purchase
specified securities from the option holder at a specified price if the option
is exercised at any time before the expiration date.  All put options written by
a Fund would be covered, which means that such Fund would have deposited with
its custodian cash or liquid assets with a value at least equal to the exercise
price of the put option.  The purpose of writing such options is to generate
additional income for the Fund.  However, in return for the option premium, each
Fund accepts the risk that it may be required to purchase the underlying
securities at a price in excess of the securities' market value at the time of
purchase.

     Call and put options written by a Fund will also be considered to be
covered to the extent that the Fund's liabilities under such options are wholly
or partially offset by its rights under call and put options purchased by the
Fund.

     In addition, a written call option or put option may be covered by
maintaining segregated cash or liquid assets (either of which may be quoted or
denominated in any currency), by entering into an offsetting forward contract
and/or by purchasing an offsetting option which, by virtue of its exercise price
or otherwise, reduces a Fund's net exposure on its written option position.

     A Fund may also write (sell) covered call and put options on any securities
index composed of securities in which it may invest.  Options on securities
indices are similar to options on securities, except that the exercise of
securities index options requires cash payments and does not involve the actual
purchase or sale of securities.  In addition, securities index options are
designed to reflect price fluctuations in a group of securities or segment of
the securities market rather than price fluctuations in a single security.

     A Fund may cover call options on a securities index by owning securities
whose price changes are expected to be similar to those of the underlying index,
or by having an absolute and immediate right to acquire such securities without
additional cash consideration (or for additional cash consideration which has
been segregated by the Fund) upon conversion or exchange of other securities in
its portfolio.  A Fund may cover call and put options on a securities index by
segregating cash or liquid assets with a value equal to the exercise price.

                                     B-23
<PAGE>
 
     A Fund may terminate its obligations under an exchange traded call or put
option by purchasing an option identical to the one it has written.  Obligations
under over-the-counter options may be terminated only by entering into an
offsetting transaction with the counterparty to such option.  Such purchases are
referred to as "closing purchase transactions."

     PURCHASING OPTIONS.  Each Fund (other than the CORE Large Cap Value, CORE
U.S. Equity and CORE Large Cap Growth Funds) may purchase put and call options
on any securities in which it may invest or options on any securities index
composed of securities in which it may invest.  A Fund would also be able to
enter into closing sale transactions in order to realize gains or minimize
losses on options it had purchased.

     A Fund would normally purchase call options in anticipation of an increase
in the market value of securities of the type in which it may invest.  The
purchase of a call option would entitle a Fund, in return for the premium paid,
to purchase specified securities at a specified price during the option period.
A Fund would ordinarily realize a gain if, during the option period, the value
of such securities exceeded the sum of the exercise price, the premium paid and
transaction costs; otherwise such a Fund would realize either no gain or a loss
on the purchase of the call option.

     A Fund would normally purchase put options in anticipation of a decline in
the market value of securities in its portfolio ("protective puts") or in
securities in which it may invest.  The purchase of a put option would entitle a
Fund, in exchange for the premium paid, to sell specified securities at a
specified price during the option period.  The purchase of protective puts is
designed to offset or hedge against a decline in the market value of a Fund's
securities.  Put options may also be purchased by a Fund for the purpose of
affirmatively benefiting from a decline in the price of securities which it does
not own.  A Fund would ordinarily realize a gain if, during the option period,
the value of the underlying securities decreased below the exercise price
sufficiently to more than cover the premium and transaction costs; otherwise
such a Fund would realize either no gain or a loss on the purchase of the put
option.  Gains and losses on the purchase of protective put options would tend
to be offset by countervailing changes in the value of the underlying portfolio
securities.

     A Fund would purchase put and call options on securities indices for the
same purposes as it would purchase options on individual securities.  For a
description of options on securities indices, see "Writing Covered Options"
above.

     YIELD CURVE OPTIONS.  Balanced Fund, with respect to up to 5% of its net
assets, may enter into options on the yield "spread" or differential between two
securities.  Such transactions are referred to as "yield curve" options.  In
contrast to other types of options, a yield curve option is based on the
difference between the yields of designated securities, rather than the prices
of the individual securities, and is settled through cash payments.
Accordingly, a yield curve option is profitable to the holder if this
differential widens (in the case of a call) or narrows (in the case of a put),
regardless of whether the yields of the underlying securities increase or
decrease.

     Balanced Fund may purchase or write yield curve options for the same
purposes as other options on securities.  For example,  Balanced Fund may
purchase a call option on the yield spread between two securities if it owns one
of the securities and anticipates purchasing the other security

                                     B-24
<PAGE>
 
and wants to hedge against an adverse change in the yield spread between the two
securities. Balanced Fund may also purchase or write yield curve options in an
effort to increase its current income if, in the judgment of the Adviser,
Balanced Fund will be able to profit from movements in the spread between the
yields of the underlying securities. The trading of yield curve options is
subject to all of the risks associated with the trading of other types of
options. In addition, however, such options present risk of loss even if the
yield of one of the underlying securities remains constant, if the spread moves
in a direction or to an extent which was not anticipated.

     Yield curve options written by the Balanced Fund will be "covered."  A call
(or put) option is covered if the Balanced Fund holds another call (or put)
option on the spread between the same two securities and segregates cash or
liquid assets sufficient to cover the Balanced Fund's net liability under the
two options.  Therefore, the Balanced Fund's liability for such a covered option
is generally limited to the difference between the amount of the Balanced Fund's
liability under the option written by the Balanced Fund less the value of the
option held by the Balanced Fund.  Yield curve options may also be covered in
such other manner as may be in accordance with the requirements of the
counterparty with which the option is traded and applicable laws and
regulations.  Yield curve options are traded over-the-counter, and because they
have been only recently introduced, established trading markets for these
options have not yet developed.

     RISKS ASSOCIATED WITH OPTIONS TRANSACTIONS.  There is no assurance that a
liquid secondary market on an options exchange will exist for any particular
exchange-traded option or at any particular time.  If a Fund is unable to effect
a closing purchase  transaction with respect to covered options it has written,
the Fund will not be able to sell the underlying securities or dispose of
segregated assets until the options expire or are exercised.  Similarly, if a
Fund is unable to effect a closing sale transaction with respect to options it
has purchased, it will have to exercise the options in order to realize any
profit and will incur transaction costs upon the purchase or sale of underlying
securities.

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

     Each Fund may purchase and sell both options that are traded on U.S. and
foreign exchanges and options traded over-the-counter with broker-dealers who
make markets in these options.  The ability to terminate over-the-counter
options is more limited than with exchange-traded options and may involve the
risk that broker-dealers participating in such transactions will not fulfill
their obligations.

                                     B-25
<PAGE>
 
     Transactions by each Fund in options on securities and indices will be
subject to limitations established by each of the exchanges, boards of trade or
other trading facilities governing the maximum number of options in each class
which may be written or purchased by a single investor or group of investors
acting in concert.  Thus, the number of options which a Fund may write or
purchase may be affected by options written or purchased by other investment
advisory clients of the Advisers.  An exchange, board of trade or other trading
facility may order the liquidation of positions found to be in excess of these
limits, and it may impose certain other sanctions.

     The writing and purchase of options is a highly specialized activity which
involves investment techniques and risks different from those associated with
ordinary portfolio securities transactions.  The successful use of protective
puts for hedging purposes depends in part on the Adviser's ability to predict
future price fluctuations and the degree of correlation between the options and
securities markets.

REAL ESTATE INVESTMENT TRUSTS
- -----------------------------

     Each Fund may invest in shares of REITs.  The Real Estate Securities Fund
expects that a substantial portion of its total assets will be invested in
REITs.  REITs are pooled investment vehicles which invest primarily in income
producing real estate or real estate related loans or interest.  REITs are
generally classified as equity REITs, mortgage REITs or a combination of equity
and mortgage REITs.  Equity REITs invest the majority of their assets directly
in real property and derive income primarily from the collection of rents.
Equity REITs can also realize capital gains by selling properties that have
appreciated in value.  Mortgage REITs invest the majority of their assets in
real estate mortgages and derive income from the collection of interest
payments. Like regulated investment companies such as the Funds, REITs are not
taxed on income distributed to shareholders provided they comply with certain
requirements under the Code. A Fund will indirectly bear its proportionate share
of any expenses paid by REITs in which it invests in addition to the expenses
paid by a Fund.

     Investing in REITs involves certain unique risks.  Equity REITs may be
affected by changes in the value of the underlying property owned by such REITs,
while mortgage REITs may be affected by the quality of any credit extended.
REITs are dependent upon management skills, are not diversified (except to the
extent the Code requires), and are subject to the risks of financing projects.
REITs are subject to heavy cash flow dependency, default by borrowers, self-
liquidation, and the possibilities of failing to qualify for the exemption from
tax for distributed  income under the Code and failing to maintain their
exemptions from the Investment Company Act of 1940, as amended (the "Act").
REITs (especially mortgage REITs) are also subject to interest rate risks.

WARRANTS AND STOCK PURCHASE RIGHTS
- ----------------------------------

     Each Fund may invest up to 5% of its net assets, calculated at the time of
purchase, in warrants or rights (other than those acquired in units or attached
to other securities) which entitle the holder to buy equity securities at a
specific price for a specific period of time.  A Fund will invest in warrants
and rights only if such equity securities are deemed appropriate by the Adviser
for investment by the Fund.  CORE Large Cap Value, CORE U.S. Equity, CORE Large
Cap Growth, CORE Small Cap Equity and CORE International Equity Funds have no
present intention

                                     B-26
<PAGE>
 
of acquiring warrants or rights. Warrants and rights have no voting rights,
receive no dividends and have no rights with respect to the assets of the
issuer.

FOREIGN SECURITIES
- ------------------

     Investments in foreign securities may offer potential benefits not
available from investments solely in U.S. dollar-denominated or quoted
securities of domestic issuers.  Such benefits may include the opportunity to
invest in foreign issuers that appear, in the opinion of the applicable Adviser,
to offer better opportunity for long-term growth of capital and income than
investments in U.S. securities, the opportunity to invest in foreign countries
with economic policies or business cycles different from those of the United
States and the opportunity to reduce fluctuations in portfolio value by taking
advantage of foreign stock markets that do not necessarily move in a manner
parallel to U.S. markets.

     Investing in foreign securities involves certain special risks, including
those set forth below, which are not typically associated with investing in U.S.
dollar-denominated or quoted securities of U.S. issuers.  Investments in foreign
securities usually involve currencies of foreign countries. Accordingly, any
Fund that invests in foreign securities may be affected favorably or unfavorably
by changes in currency rates and in exchange control regulations and may incur
costs in connection with conversions between various currencies.  The Balanced,
CORE International Equity, International Equity, European Equity, International
Small Cap, Emerging Markets Equity and Asia Growth Funds may be subject to
currency exposure independent of their securities positions.

     Currency exchange rates may fluctuate significantly over short periods of
time.  They generally are determined by the forces of supply and demand in the
foreign exchange markets and the relative merits of investments in different
countries, actual or anticipated changes in interest rates and other complex
factors,  as seen from an international perspective.  Currency exchange rates
also can be affected unpredictably by intervention by U.S. or foreign
governments or central banks or the failure to intervene or by currency controls
or political developments in the United States or abroad.

     Since foreign issuers generally are not subject to uniform accounting,
auditing and financial reporting standards, practices and requirements
comparable to those applicable to U.S. companies, there may be less publicly
available information about a foreign company than about a U.S. company.  Volume
and liquidity in most foreign securities markets are less than in the United
States and securities of many foreign companies are less liquid and more
volatile than securities of comparable U.S. companies.  Fixed commissions on
foreign securities exchanges are generally higher than negotiated commissions on
U.S. exchanges, although each Fund endeavors to achieve the most favorable net
results on its portfolio transactions.  There is generally less government
supervision and regulation of foreign securities exchanges, brokers, dealers and
listed and unlisted companies than in the United States.

     Foreign markets also have different clearance and settlement procedures,
and in certain markets there have been times when settlements have been unable
to keep pace with the volume of securities transactions, making it difficult to
conduct such transactions.  Such delays in settlement could result in temporary
periods when some of a Fund's assets are uninvested and no return is earned on
such assets.  The inability of a Fund to make intended security purchases due to

                                     B-27
<PAGE>
 
settlement problems could cause the Fund to miss attractive investment
opportunities.  Inability to dispose of portfolio securities due to settlement
problems could result either in losses to the Fund due to subsequent declines in
value of the portfolio securities or, if the Fund has entered into a contract to
sell the securities, could result in possible liability to the purchaser.  In
addition, with respect to certain foreign countries, there is the possibility of
expropriation or confiscatory taxation, political or social instability, or
diplomatic developments which could affect a Fund's investments in those
countries.  Moreover, individual foreign economies may differ favorably or
unfavorably from the U.S. economy in such respects as growth of gross national
product, rate of inflation, capital reinvestment, resource self-sufficiency and
balance of payments position.

     Each Fund may invest in foreign securities which take the form of sponsored
and unsponsored American Depository Receipts ("ADRs") and Global Depository
Receipts ("GDRs") and (except for CORE Large Cap Value, CORE U.S. Equity, CORE
Large Cap Growth and CORE Small Cap Equity Funds) may also invest in European
Depository Receipts ("EDRs") or other similar instruments representing
securities of foreign issuers (together, "Depository Receipts").

     ADRs represent the right to receive securities of foreign issuers deposited
in a domestic bank or a correspondent bank.  ADRs are traded on domestic
exchanges or in the U.S. over-the-counter market and, generally, are in
registered form.  EDRs and GDRs are receipts evidencing an arrangement with a
non-U.S. bank similar to that for ADRs and are designed for use in the non-U.S.
securities markets.  EDRs and GDRs are not necessarily quoted in the same
currency as the underlying security.

     To the extent a Fund acquires Depository Receipts through banks which do
not have a contractual relationship with the foreign issuer of the security
underlying the Depository Receipts to issue and service such Depository Receipts
(unsponsored), there may be an increased possibility that the Fund would not
become aware of and be able to respond to corporate actions such as stock splits
or rights offerings involving the foreign issuer in a timely manner.  In
addition, the lack of information may result in inefficiencies in the valuation
of such instruments.

     Each Fund (except CORE Large Cap Value, CORE U.S. Equity, CORE Large Cap
Growth and CORE Small Cap Equity Funds) may invest in countries with emerging
economies or securities markets.  Political and economic structures in many of
such countries may be undergoing significant evolution and rapid development,
and such countries may lack the social, political and economic stability
characteristic of more developed countries.  Certain of such countries may have
in the past failed to recognize private property rights and have at times
nationalized or expropriated the assets of private companies.  As a result, the
risks described above, including the risks of nationalization or expropriation
of assets, may be heightened. See "Investing in Emerging Markets, including Asia
and Eastern Europe," below.

     A Fund (other than CORE Large Cap Value, CORE U.S. Equity, CORE Large Cap
Growth and CORE Small Cap Equity Funds) may invest in securities of issuers
domiciled in a country other than the country in whose currency the instrument
is denominated or quoted.  The Funds may also invest in securities quoted or
denominated in the European Currency Unit ("ECU"), which is a "basket"
consisting of specified amounts of the currencies of certain of the member
states of the European Community.  The specific amounts of currencies comprising
the ECU may be adjusted by the Council of Ministers of the European Community
from time to time to reflect changes in

                                     B-28
<PAGE>
 
relative values of the underlying currencies. In addition, the Funds may invest
in securities quoted or denominated in other currency "baskets."

     INVESTING IN EMERGING MARKETS, INCLUDING ASIA AND EASTERN EUROPE.  CORE
International Equity, International Equity, European Equity, International Small
Cap, Asia Growth and Emerging Markets Equity Funds are intended for long-term
investors who can accept the risks associated with investing primarily in equity
and equity-related securities of foreign issuers, including Emerging Country
issuers and Asian Companies (as defined in the Prospectus) (in the case of Asia
Growth Fund), as well as the risks associated with investments quoted or
denominated in foreign currencies.  The Balanced, Growth and Income, Small Cap
Value, Mid Cap Equity and Capital Growth Funds may invest, to a lesser extent,
in equity and equity-related securities of foreign issuers, including Emerging
Country issuers.

     Each of the securities markets of the Emerging Countries is less liquid and
subject to greater price volatility and has a smaller market capitalization than
the U.S. securities markets.  Issuers and securities markets in such countries
are not subject to as extensive and frequent accounting, financial and other
reporting requirements or as comprehensive government regulations as are issuers
and securities markets in the U.S. In particular, the assets and profits
appearing on the financial statements of Emerging Country issuers may not
reflect their financial position or results of operations in the same manner as
financial statements for U.S. issuers.  Substantially less information may be
publicly available about Emerging Country issuers than is available about
issuers in the United States.

     Certain of the Emerging Country securities markets are marked by a high
concentration of market capitalization and trading volume in a small number of
issuers representing a limited number of industries, as well as a high
concentration of ownership of such securities by a limited number of investors.
The markets for securities in certain Emerging Countries are in the earliest
stages of their development.  Even the markets for relatively widely traded
securities in Emerging Countries may not be able to absorb, without price
disruptions, a significant increase in trading volume or trades of a size
customarily undertaken by institutional investors in the securities markets of
developed countries.  Additionally, market making and arbitrage activities are
generally less extensive in such markets, which may contribute to increased
volatility and reduced liquidity of such markets. The limited liquidity of
Emerging Country markets may also affect a Fund's ability to accurately value
its portfolio securities or to acquire or dispose of securities at the price and
time it wishes to do so or in order to meet redemption requests.

     Transaction costs, including brokerage commissions or dealer mark-ups, in
Emerging Countries may be higher than in the United States and other developed
securities markets.  In addition, existing laws and regulations are often
inconsistently applied.  As legal systems in Emerging Countries develop, foreign
investors may be adversely affected by new or amended laws and regulations.  In
circumstances where adequate laws exist, it may not be possible to obtain swift
and equitable enforcement of the law.

     Foreign investment in the securities markets of certain Emerging Countries
is restricted or controlled to varying degrees.  These restrictions may limit a
Fund's investment in certain Emerging Countries and may increase the expenses of
the Fund.  Certain Emerging Countries require governmental approval prior to
investments by foreign persons or limit investment by foreign

                                     B-29
<PAGE>
 
persons to only a specified percentage of an issuer's outstanding securities or
a specific class of securities which may have less advantageous terms (including
price) than securities of the company available for purchase by nationals. In
addition, the repatriation of both investment income and capital from several of
the Emerging Countries (such as Malaysia) is subject to restrictions which
require governmental comments or prohibit repatriation entirely for a period of
time. Even where there is no outright restriction on repatriation of capital,
the mechanics of repatriation may affect certain aspects of the operation of a
Fund. A Fund may be required to establish special custodial or other
arrangements before investing in certain Emerging Countries.

     Each of the Emerging Countries may be subject to a substantially greater
degree of economic, political and social instability and disruption than is the
case in the United States, Japan and most Western European countries.  Such
instability may result from, among other things, the following: (i)
authoritarian governments or military involvement in political and economic
decision making, including changes or attempted changes in governments through
extra-constitutional means; (ii) popular unrest associated with demands for
improved political, economic or social conditions; (iii) internal insurgencies;
(iv) hostile relations with neighboring countries; and (v) ethnic, religious and
racial disaffection or conflict.  Such economic, political and social
instability could disrupt the principal financial markets in which the Funds may
invest and adversely affect the value of the Funds' assets.

     The economies of Emerging Countries may differ unfavorably from the U.S.
economy in such respects as growth of gross domestic product, rate of inflation,
capital reinvestment, resources, self-sufficiency and balance of payments.  Many
Emerging Countries have experienced in the past, and continue to experience,
high rates of inflation.  In certain countries inflation has at times
accelerated rapidly to hyperinflationary levels, creating a negative interest
rate environment and sharply eroding the value of outstanding financial assets
in those countries.  The economies of many Emerging Countries are heavily
dependent upon international trade and are accordingly affected by protective
trade barriers and the economic conditions of their trading partners.  In
addition, the economies of some Emerging Countries are vulnerable to weakness in
world prices for their commodity exports.

     A Fund's income and, in some cases, capital gains from foreign stocks and
securities will be subject to applicable taxation in certain of the countries in
which it invests, and treaties between the U.S. and such countries may not be
available in some cases to reduce the otherwise applicable tax rates.  See
"Taxation."

     Foreign markets also have different clearance and settlement procedures,
and in certain markets there have been times when settlements have been unable
to keep pace with the volume of securities transactions, making it difficult to
conduct such transactions.  Such delays in settlement could result in temporary
periods when a portion of the assets of a Fund is uninvested and no return is
earned on such assets.  The inability of a Fund to make intended security
purchases or sales due to settlement problems could result either in losses to
the Fund due to subsequent declines in value of the portfolio securities or, if
the Fund has entered into a contract to sell the securities, could result in
possible liability to the purchaser.

     INVESTING IN JAPAN.  The Japanese Equity Fund invests in the equity
securities of Japanese companies.  Japan's economy, the second-largest in the
world, has grown substantially over the last 

                                     B-30
<PAGE>
 
three decades. The boom in Japan's equity and property markets during the
expansion of the late 1980's supported high rates of investment and consumer
spending on durable goods, but both of these components of demand have now
retreated sharply following the decline in asset prices. Profits have fallen
sharply, unemployment has reached a historical high and consumer confidence is
low. The banking sector continues to suffer from non-performing loans and this
economy is subject to deflationary pressures. Numerous discount-rate cuts since
its peak in 1991, a succession of fiscal stimulus packages, support plans for
the debt-burdened financial system and spending for reconstruction following the
Kobe earthquake may help to contain the recessionary forces, but substantial
uncertainties remain.

     In addition to the cyclical downturn, Japan is suffering through structural
adjustments.  Like the Europeans, the Japanese have seen a deterioration of
their competitiveness due to high wages, a strong currency and structural
rigidities.  Finally, Japan is reforming its political process and deregulating
its economy.  This has brought about turmoil, uncertainty and a crisis of
confidence.

     While the Japanese governmental system itself seems stable, the dynamics of
the country's politics have been unpredictable in recent years.  The economic
crisis of 1990-92 brought the downfall of the conservative Liberal Democratic
Party, which had ruled since 1955.  Since then, the country has seen a series of
unstable multi-party coalitions and several prime ministers come and go, because
of politics as well as personal scandals.  While there appears to be no reason
for anticipating civic unrest, it is impossible to know when the political
instability will end and what trade and fiscal policies might be pursued by the
government that emerges.

     Japan's heavy dependence on international trade has been adversely affected
by trade tariffs and other protectionist measures as well as the economic
condition of its trading partners.  While Japan subsidizes its agricultural
industry, only 19% of its land is suitable for cultivation and it is only 50%
self-sufficient in food production.  Accordingly, it is highly dependent on
large imports of wheat, sorghum and soybeans.  In addition, industry, its most
important economic sector, depends on imported raw materials and fuels,
including iron ore, copper, oil and many forest products.  Japan's high volume
of exports, such as automobiles, machine tools and semiconductors, have caused
trade tensions, particularly with the United States.  Some trade agreements,
however, have been implemented to reduce these tensions.  The relaxing of
official and de facto barriers to imports, or hardships created by any pressures
brought by trading partners, could adversely affect Japan's economy.  A
substantial rise in world oil or commodity prices could also have a negative
affect.  The strength of the yen itself may prove an impediment to strong
continued exports and economic recovery, because it makes Japanese goods sold in
other countries more expensive and reduces the value of foreign earnings
repatriated to Japan.  Because the Japanese economy is so dependent on exports,
any fall-off in exports may be seen as a sign of economic weakness, which may
adversely affect the market.

     Geologically, Japan is located in a volatile area of the world, and has
historically been vulnerable to earthquakes, volcanoes and other natural
disasters.  As demonstrated by the Kobe earthquake in January of 1995, in which
5,000 people were killed and billions of dollars of damage was sustained, these
natural disasters can be significant enough to affect the country's economy.

     FORWARD FOREIGN CURRENCY EXCHANGE CONTRACTS.  The Growth and Income, Mid
Cap Equity, Capital Growth and Small Cap Value Funds may enter into forward
foreign currency 

                                     B-31
<PAGE>
 
exchange contracts for hedging purposes. The Balanced, CORE International
Equity, International Equity, European Equity, Japanese Equity, International
Small Cap, Emerging Markets Equity and Asia Growth Funds may enter into forward
foreign currency exchange contracts for hedging purposes and to seek to increase
total return. A forward foreign currency exchange contract involves an
obligation to purchase or sell a specific currency at a future date, which may
be any fixed number of days from the date of the contract agreed upon by the
parties, at a price set at the time of the contract. These contracts are traded
in the interbank market between currency traders (usually large commercial
banks) and their customers. A forward contract generally has no deposit
requirement, and no commissions are generally charged at any stage for trades.

     At the maturity of a forward contract a Fund may either accept or make
delivery of the currency specified in the contract or, at or prior to maturity,
enter into a closing transaction involving the purchase or sale of an offsetting
contract. Closing  transactions with respect to forward contracts are often, but
not always, effected with the currency trader who is a party to the original
forward contract.

     A Fund may enter into forward foreign currency exchange contracts in
several circumstances.  First, when a Fund enters into a contract for the
purchase or sale of a security denominated or quoted in a foreign currency, or
when a Fund anticipates the receipt in a foreign currency of dividend or
interest payments on such a security which it holds, the Fund may desire to
"lock in" the U.S. dollar price of the security or the U.S. dollar equivalent of
such dividend or interest payment, as the case may be.  By entering into a
forward contract for the purchase or sale, for a fixed amount of dollars, of the
amount of foreign currency involved in the underlying transactions, the Fund
will attempt to protect itself against an adverse change in the relationship
between the U.S. dollar and the subject foreign currency during the period
between the date on which the security is purchased or sold, or on which the
dividend or interest payment is declared, and the date on which such payments
are made or received.

     Additionally, when the Adviser believes that the currency of a particular
foreign country may suffer a substantial decline against the U.S. dollar, it may
enter into a forward contract to sell, for a fixed amount of U.S. dollars, the
amount of foreign currency approximating the value of some or all of such Fund's
portfolio securities quoted or denominated in such foreign currency.  The
precise matching of the forward contract amounts and the value of the securities
involved will not generally be possible because the future value of such
securities in foreign currencies will change as a consequence of market
movements in the value of those securities between the date on which the
contract is entered into and the date it matures.  Using forward contracts to
protect the value of a Fund's portfolio securities against a decline in the
value of a currency does not eliminate fluctuations in the underlying prices of
the securities.  It simply establishes a rate of exchange which a Fund can
achieve at some future point in time.  The precise projection of short-term
currency market movements is not possible, and short-term hedging provides a
means of fixing the U.S. dollar value of only a portion of a Fund's foreign
assets.

     Balanced, CORE International Equity, International Equity, European Equity,
Japanese Equity, International Small Cap, Emerging Markets Equity and Asia
Growth Funds may engage in cross-hedging by using forward contracts in one
currency to hedge against fluctuations in the value of securities quoted or
denominated in a different currency if GSAM or GSAMI determines that there is a
pattern of correlation between the two currencies.  Balanced, CORE International
Equity, 

                                     B-32
<PAGE>
 
International Equity, European Equity, Japanese Equity, International Small Cap,
Emerging Markets Equity and Asia Growth Funds may also purchase and sell forward
contracts to seek to increase total return when GSAM or GSAMI anticipates that
the foreign currency will appreciate or depreciate in value, but securities
quoted or denominated in that currency do not present attractive investment
opportunities and are not held in the Fund's portfolio.

     Balanced, CORE International Equity, International Equity, European Equity,
Japanese Equity, International Small Cap, Emerging Markets Equity and Asia
Growth Funds may also enter into forward contracts to seek to increase total
return.  Unless otherwise covered in accordance with applicable regulations,
cash or liquid assets of a Fund will be segregated in an amount equal to the
value of the Fund's total assets committed to the consummation of forward
foreign currency exchange contracts.  If the value of the segregated assets
declines, additional cash or liquid assets will be segregated on a daily basis
so that the value of the assets will equal the amount of a Fund's commitments
with respect to such contracts.  The segregated assets will be marked-to-market
on a daily basis.  Although the contracts are not presently regulated by the
CFTC, the CFTC may in the future assert authority to regulate these contracts.
In such event, a Fund's ability to utilize forward foreign currency exchange
contracts may be restricted.

     While a Fund may enter into forward contracts to reduce currency exchange
rate risks, transactions in such contracts involve certain other risks.  Thus,
while the Fund may benefit from such transactions, unanticipated changes in
currency prices may result in a poorer overall performance for the Fund than if
it had not engaged in any such transactions.  Moreover, there may be imperfect
correlation between a Fund's portfolio holdings of securities quoted or
denominated in a particular currency and forward contracts entered into by such
Fund.  Such imperfect correlation may cause a Fund to sustain losses which will
prevent the Fund from achieving a complete hedge or expose the Fund to risk of
foreign exchange loss.

      Markets for trading foreign forward currency contracts offer less
protection against defaults than is available when trading in currency
instruments on an exchange.  Since a forward foreign currency exchange contract
is not guaranteed by an exchange or clearinghouse, a default on the contract
would deprive a Fund of unrealized profits or force the Fund to cover its
commitments for purchase or resale, if any, at the current market price.

     WRITING AND PURCHASING CURRENCY CALL AND PUT OPTIONS. Each Fund (except
CORE Large Cap Value, CORE U.S. Equity, CORE Large Cap Growth and CORE Small Cap
Equity Funds) may write covered put and call options and purchase put and call
options on foreign currencies for the purpose of protecting against declines in
the U.S. dollar value of portfolio securities and against increases in the U.S.
dollar cost of securities to be acquired.  As with other kinds of option
transactions, however, the writing of an option on foreign currency will
constitute only a partial hedge, up to the amount of the premium received.  If
and when a Fund seeks to close out an option, the Fund could be required to
purchase or sell foreign currencies at disadvantageous exchange rates, thereby
incurring losses.  The purchase of an option on foreign currency may constitute
an effective hedge against exchange rate fluctuations; however, in the event of
exchange rate movements adverse to a Fund's position, the Fund may forfeit the
entire amount of the premium plus related transaction costs.  Options on foreign
currencies to be written or purchased by a Fund will be traded on U.S. and
foreign exchanges or over-the-counter.

                                     B-33
<PAGE>
 
     Balanced, CORE International Equity, International Equity, European Equity,
Japanese Equity, International Small Cap, Emerging Markets Equity and Asia
Growth Funds may use options on currency to cross-hedge, which involves writing
or purchasing options on one currency to hedge against changes in exchange rates
for a different currency with a pattern of correlation.  In addition, Balanced,
CORE International Equity, International Equity, European Equity, Japanese
Equity, International Small Cap, Emerging Markets Equity and Asia Growth Funds
may purchase call or put options on currency to seek to increase total return
when the Adviser anticipates that the currency will appreciate or depreciate in
value, but the securities quoted or denominated in that currency do not present
attractive investment opportunities and are not included in the Fund's
portfolio.

     A call option written by a Fund obligates a Fund to sell specified currency
to the holder of the option at a specified price if the option is exercised at
any time before the expiration date.  A put option written by a Fund would
obligate a Fund to purchase specified currency from the option holder at a
specified price if the option is exercised at any time before the expiration
date.  The writing of currency options involves a risk that a Fund  will, upon
exercise of the option, be required to sell currency subject to a call at a
price that is less than the currency's market value or be required to purchase
currency subject to a put at a price that exceeds the currency's market value.
For a description of how to cover written put and call options, see "Written
Covered Options" above.

     A Fund may terminate its obligations under a call or put option by
purchasing an option identical to the one it has written.  Such purchases are
referred to as "closing purchase transactions."  A Fund would also be able to
enter into closing sale transactions in order to realize gains or minimize
losses on options purchased by the Fund.

     A Fund would normally purchase call options on foreign currency in
anticipation of an increase in the U.S. dollar value of currency in which
securities to be acquired by a Fund are quoted or denominated.  The purchase of
a call option would entitle the Fund, in return for the premium paid, to
purchase specified currency at a specified price during the option period.  A
Fund would ordinarily realize a gain if, during the option period, the value of
such currency exceeded the sum of the exercise price, the premium paid and
transaction costs; otherwise the Fund would realize either no gain or a loss on
the purchase of the call option.

     A Fund would normally purchase put options in anticipation of a decline in
the U.S. dollar value of currency in which securities in its portfolio are
quoted or denominated ("protective puts"). The purchase of a put option would
entitle a Fund, in exchange for the premium paid, to sell specified currency at
a specified price during the option period.  The purchase of protective puts is
designed merely to offset or hedge against a decline in the dollar value of a
Fund's portfolio securities due to currency exchange rate fluctuations.  A Fund
would ordinarily realize a gain if, during the option period, the value of the
underlying currency decreased below the exercise price sufficiently to more than
cover the premium and transaction costs; otherwise the Fund would realize either
no gain or a loss on the purchase of the put option.  Gains and losses on the
purchase of protective put options would tend to be offset by countervailing
changes in the value of underlying currency or portfolio securities.

                                     B-34
<PAGE>
 
     In addition to using options for the hedging purposes described above,
Balanced, CORE International Equity, International Equity, European Equity,
Japanese Equity, International Small Cap, Emerging Markets Equity and Asia
Growth Funds may use options on currency to seek to increase total return.
Balanced, CORE International Equity, International Equity, European Equity,
Japanese Equity, International Small Cap, Emerging Markets Equity and Asia
Growth Funds may write (sell) covered put and call options on any currency in
order to realize greater income than would be realized on portfolio securities
transactions alone.  However, in writing covered call options for additional
income, Balanced, CORE International Equity, International Equity, European
Equity, Japanese Equity, International Small Cap, Emerging Markets Equity and
Asia Growth Funds may forego the opportunity to profit from an increase in the
market value of the  underlying currency.  Also, when writing put options,
Balanced, CORE International Equity, International Equity, European Equity,
Japanese Equity, International Small Cap, Emerging Markets Equity and Asia
Growth Funds accept, in return for the option premium, the risk that they may be
required to purchase the underlying currency at a price in excess of the
currency's market value at the time of purchase.

     SPECIAL RISKS ASSOCIATED WITH OPTIONS ON CURRENCY. An exchange traded
options position may be closed out only on an options exchange which provides a
secondary market for an option of the same series.  Although a Fund will
generally purchase or write only those options for which there appears to be an
active secondary market, there is no assurance that a liquid secondary market on
an exchange will exist for any particular option, or at any particular time.
For some options no secondary market on an exchange may exist.  In such event,
it might not be possible to effect closing transactions in particular options,
with the result that a Fund would have to exercise its options in order to
realize any profit and would incur transaction costs upon the sale of underlying
securities pursuant to the exercise of put options.  If a Fund as a covered call
option writer is unable to effect a closing purchase transaction in a secondary
market, it will not be able to sell the underlying currency (or security quoted
or denominated in that currency) until the option expires or it delivers the
underlying currency upon exercise.

     There is no assurance that higher than anticipated trading activity or
other unforeseen events might not, at times, render certain of the facilities of
the Options Clearing Corporation inadequate, and thereby result in the
institution by an exchange of special procedures which may interfere with the
timely execution of customers' orders.

     A Fund may purchase and write over-the-counter options to the extent
consistent with its limitation on investments in illiquid securities.  Trading
in over-the-counter options is subject to the risk that the other party will be
unable or unwilling to close out options purchased or written by a Fund.

     The amount of the premiums which a Fund may pay or receive may be adversely
affected as new or existing institutions, including other investment companies,
engage in or increase their option purchasing and writing activities.

                                     B-35
<PAGE>
 
CURRENCY SWAPS, MORTGAGE SWAPS, CREDIT SWAPS, INDEX SWAPS AND INTEREST RATE
- ---------------------------------------------------------------------------
SWAPS, CAPS, FLOORS AND COLLARS
- -------------------------------

     The Balanced, CORE International Equity, International Equity, European
Equity, Japanese Equity, International Small Cap, Emerging Markets Equity and
Asia Growth Funds may, with respect to up to 5% of their net assets, enter into
currency swaps for both hedging purposes and to seek to increase total return.
In addition, the Balanced and Real Estate Securities Funds may, with respect to
5% of their net assets, enter into mortgage, credit, index and interest rate
swaps and other interest rate swap arrangements such as rate caps, floors and
collars, for hedging purposes or to seek to increase total return.  Currency
swaps involve the exchange by a Fund with another party of their respective
rights to make or receive payments in specified currencies.  Interest rate swaps
involve the exchange by a Fund with another party of their respective
commitments to pay or receive interest, such as an exchange of fixed rate
payments for floating rate payments.  Mortgage swaps are similar to interest
rate swaps in that they represent commitments to pay and receive interest.  The
notional principal amount, however, is tied to a reference pool or pools of
mortgages.  Index swaps involve the exchange by a Fund with another party of the
respective amounts payable with respect to a notional principal amount at
interest rates equal to two specified indices.  Credit swaps involve the receipt
of floating or fixed rate payments in exchange for assuming potential credit
losses of an underlying security.  Credit swaps give one party to a transaction
the right to dispose of or acquire an asset (or group of assets), or the right
to receive or make a payment for the other party, upon the occurrence of
specified credit events.  The purchase of an interest rate cap entitles the
purchaser, to the extent that a specified index exceeds a predetermined interest
rate, to receive payment of interest on a notional principal amount from the
party selling such interest rate cap.  The purchase of an interest rate floor
entitles the purchaser, to the extent that a specified index falls below a
predetermined interest rate, to receive payments of interest on a notional
principal amount from the party selling the interest rate floor.  An interest
rate collar is the combination of a cap and a floor that preserves a certain
return within a predetermined range of interest rates.

     A Fund will enter into interest rate, mortgage and index swaps only on a
net basis, which means that the two payment streams are netted out, with the
Fund receiving or paying, as the case may be, only the net amount of the two
payments.  Interest rate, index and mortgage swaps do not involve the delivery
of securities, other underlying assets or principal.  Accordingly, the risk of
loss with respect to interest rate, index and mortgage swaps is limited to the
net amount of interest payments that the Fund is contractually obligated to
make.  If the other party to an interest rate, index or mortgage swap defaults,
the Fund's risk of loss consists of the net amount of interest payments that the
Fund is contractually entitled to receive.  In contrast, currency swaps usually
involve the delivery of a gross payment stream in one designated currency in
exchange for the gross payment stream in another designated currency.
Therefore, the entire payment stream under a currency swap is subject to the
risk that the other party to the swap will default on its contractual delivery
obligations.  To the extent that the net amount payable under an interest rate,
index or mortgage swap and the entire amount of the payment stream payable by a
Fund under a currency swap or an interest rate floor, cap or collar is
segregated in cash or liquid assets, the Funds and the Advisers believe that
swaps do not constitute senior securities under the Act and, accordingly, will
not treat them as being subject to a Fund's borrowing restrictions.

                                     B-36
<PAGE>
 
     A Fund will not enter into swap transactions unless the unsecured
commercial paper, senior debt or claims paying ability of the other party
thereto is considered to be investment grade by the Adviser.

     The use of interest rate, mortgage, index, credit and currency swaps, as
well as interest rate caps, floors and collars, is a highly specialized activity
which involves investment techniques and risks different from those associated
with ordinary portfolio securities transactions.  If an Adviser is incorrect in
its forecasts of market values, interest rates and currency exchange rates, the
investment performance of a Fund would be less favorable than it would have been
if this investment technique were not used.  The Advisers, under the supervision
of the Board of Trustees, are responsible for determining and monitoring the
liquidity of the Funds' transactions in swaps, caps, floors and collars.

EQUITY SWAPS
- ------------

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

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

     The swap market has grown substantially in recent years with a large number
of banks and investment banking firms acting both as principals and as agents
utilizing standardized swap documentation.  As a result, the swap market has
become relatively liquid in comparison with the 

                                     B-37
<PAGE>
 
markets for other similar instruments which are traded in the over-the-counter
market. The Advisers, under the supervision of the Board of Trustees, are
responsible for determining and monitoring the liquidity of the Funds'
transactions in swaps, caps, floors and collars.

     The Funds will not enter into any swap transactions unless the unsecured
commercial paper, senior debt or claims-paying ability of the other party is
rated A or better by a nationally recognized statistical rating organization. If
there is a default by the other party to such a transaction, a Fund will have
contractual remedies pursuant to the agreements related to the transaction.

     The use of equity swaps is a highly specialized activity which involves
investment techniques and risks different from those associated with ordinary
portfolio securities transactions.  If the Advisers are incorrect in their
forecasts of market values, the investment performance of a Fund would be less
favorable than it would have been if this investment technique were not used.

LENDING OF PORTFOLIO SECURITIES
- -------------------------------

     Each Fund may lend portfolio securities.  Under present regulatory
policies, such loans may be made to institutions such as brokers or dealers and
would be required to be secured continuously by collateral in cash, cash
equivalents or U.S. Government securities maintained on a current basis at an
amount at least equal to the market value of the securities loaned.  A Fund
would be required to have the right to call a loan and obtain the securities
loaned at any time on five days' notice.  For the duration of a loan, a Fund
would continue to receive the equivalent of the interest or dividends paid by
the issuer on the securities loaned and would also receive compensation from
investment of the collateral.  A Fund would not have the right to vote any
securities having voting rights during the existence of the loan, but a Fund
would call the loan in anticipation of an important vote to be taken among
holders of the securities or the giving or withholding of their consent on a
material matter affecting the investment.  As with other extensions of credit
there are risks of delay in recovering, or even loss of rights in, the
collateral should the borrower of the securities fail financially.  However, the
loans would be made only to firms deemed by the Advisers to be of good standing,
and when, in the judgment of the Advisers, the consideration which can be earned
currently from securities loans of this type justifies the attendant risk.  If
the Advisers determine to make securities loans, it is intended that the value
of the securities loaned would not exceed one-third of the value of the total
assets of a Fund (including the loan collateral).

WHEN-ISSUED SECURITIES AND FORWARD COMMITMENTS
- ----------------------------------------------

     Each Fund  may  purchase securities on a when-issued basis or purchase or
sell securities on a forward commitment basis.  These transactions involve a
commitment by a Fund to purchase or sell securities at a future date.  The price
of the underlying securities (usually expressed in terms of yield) and the date
when the securities will be delivered and paid for (the settlement date) are
fixed at the time the transaction is negotiated.  When-issued purchases and
forward commitment transactions are negotiated directly with the other party,
and such commitments are not traded on exchanges.  A Fund will purchase
securities on a when-issued basis or purchase or sell securities on a forward
commitment basis only with the intention of completing the transaction and
actually purchasing or selling the securities.  If deemed advisable as a matter
of investment strategy, however, a Fund may dispose of or negotiate a commitment
after entering into it.  A Fund may realize a capital gain or loss in connection
with these transactions.  For purposes of determining a 

                                     B-38
<PAGE>
 
Fund's duration, the maturity of when-issued or forward commitment securities
will be calculated from the commitment date. A Fund is required to segregate
until three days prior to the settlement date, cash and liquid assets in an
amount sufficient to meet the purchase price. Alternatively, a Fund may enter
into offsetting contracts for the forward sale of other securities that it owns.
Securities purchased or sold on a when-issued or forward commitment basis
involve a risk of loss if the value of the security to be purchased declines
prior to the settlement date or if the value of the security to be sold
increases prior to the settlement date.

INVESTMENT IN UNSEASONED COMPANIES
- ----------------------------------

     Each Fund may invest up to 5% of its net assets, calculated at the time of
purchase, in companies (including predecessors) which have operated less than
three years, except that this limitation does not apply to debt securities which
have been rated investment grade or better by at least one nationally recognized
statistical rating organization.  The securities of such companies may have
limited liquidity, which can result in their being priced higher or lower than
might otherwise be the case.  In addition, investments in unseasoned companies
are more speculative and entail greater risk than do investments in companies
with an established operating record.

OTHER INVESTMENT COMPANIES
- --------------------------

     A Fund reserves the right to invest up to 5% of its net assets in the
securities of other investment companies (including SPDRs) but may not acquire
more than 3% of the voting securities of any other investment company.  Pursuant
to an exemptive order obtained from the SEC, the Funds may invest in money
market funds for which an Adviser or any of its affiliates serves as investment
adviser.  A Fund will indirectly bear its proportionate share of any management
fees and other expenses paid by investment companies in which it invests in
addition to the advisory and administration fees paid by the Fund.  However, to
the extent that the Fund invests in a money market fund for which an Adviser or
any of its affiliates acts as adviser, the advisory and administration fees
payable by the Fund to an Adviser will be reduced by an amount equal to the
Fund's proportionate share of the advisory and administration fees paid by such
money market fund to the Adviser.

     SPDRs are interests in a unit investment trust ("UIT") that may be obtained
from the UIT or purchased in the secondary market (SPDRs are listed on the
American Stock Exchange).  The UIT will issue SPDRs in aggregations known as
"Creation Units" in exchange for a "Portfolio Deposit" consisting of (a) a
portfolio of securities substantially similar to the component securities
("Index Securities") of the Standard & Poor's 500 Composite Stock Price Index
(the "S&P Index"), (b) a cash payment equal to a pro rata portion of the
dividends accrued on the UIT's portfolio securities since the last dividend
payment by the UIT, net of expenses and liabilities, and (c) a cash payment or
credit ("Balancing Amount") designed to equalize the net asset value of the S&P
Index and the net asset value of a Portfolio Deposit.

     SPDRs are not individually redeemable, except upon termination of the UIT.
To redeem, the Portfolio must accumulate enough SPDRs to reconstitute a Creation
Unit.  The liquidity of small holdings of SPDRs, therefore, will depend upon the
existence of a secondary market.  Upon redemption of a Creation Unit, the
Portfolio will receive Index Securities and cash identical to the Portfolio
Deposit required of an investor wishing to purchase a Creation Unit that day.

                                     B-39
<PAGE>
 
     The price of SPDRs is derived from and based upon the securities held by
the UIT.  Accordingly, the level of risk involved in the purchase or sale of a
SPDR is similar to the risk involved in the purchase or sale of traditional
common stock, with the exception that the pricing mechanism for SPDRs is based
on a basket of stocks.  Disruptions in the markets for the securities underlying
SPDRs purchased or sold by the Funds could result in losses on SPDRs.

     Each Fund (other than CORE Large Cap Value, CORE U.S. Equity, CORE Large
Cap Growth and CORE Small Cap Equity Funds) may also purchase shares of
investment companies investing primarily in foreign securities, including
"country funds."  Country funds have portfolios consisting primarily of
securities of issuers located in one foreign country or region.  Each Fund
(other than the Real Estate Securities Fund) may, subject to the limitations
stated above, invest in World Equity Benchmark Shares ("WEBS") and similar
securities that invest in securities included in foreign securities indices.

REPURCHASE AGREEMENTS
- ---------------------

     Each Fund may enter into repurchase agreements with selected broker-
dealers, banks or other financial institutions.  A repurchase agreement is an
arrangement under which a Fund purchases securities and the seller agrees to
repurchase the securities within a particular time and at a specified price.
Custody of the securities is maintained by a Fund's custodian.  The repurchase
price may be higher than the purchase price, the difference being income to a
Fund, or the purchase and repurchase prices may be the same, with interest at a
stated rate due to a Fund together with the repurchase price on repurchase.  In
either case, the income to a Fund is unrelated to the interest rate on the
security subject to the repurchase agreement.

     For purposes of the Act and generally for tax purposes, a repurchase
agreement is deemed to be a loan from a Fund to the seller of the security.  For
other purposes, it is not always clear whether a court would consider the
security purchased by a Fund subject to a repurchase agreement as being owned by
a Fund or as being collateral for a loan by a Fund to the seller.  In the event
of commencement of bankruptcy or insolvency proceedings with respect to the
seller of the security before repurchase of the security under a repurchase
agreement, a Fund may encounter delay and incur costs before being able to sell
the security.  Such a delay may involve loss of interest or a decline in price
of the security.  If the court characterizes the transaction as a loan  and a
Fund has not perfected a security interest in the security, a Fund may be
required to return the security to the seller's estate and be treated as an
unsecured creditor of the seller.  As an unsecured creditor, a Fund would be at
risk of losing some or all of the principal and interest involved in the
transaction.

     As with any unsecured debt instrument purchased for a Fund, the Advisers
seek to minimize the risk of loss from repurchase agreements by analyzing the
creditworthiness of the obligor, in this case the seller of the security.  Apart
from the risk of bankruptcy or insolvency proceedings, there is also the risk
that the seller may fail to repurchase the security.  However, if the market
value of the security subject to the repurchase agreement becomes less than the
repurchase price (including accrued interest), a Fund will direct the seller of
the security to deliver additional securities so that the market value of all
securities subject to the repurchase agreement equals or exceeds the repurchase
price.  Certain repurchase agreements which provide for settlement in more 

                                     B-40
<PAGE>
 
than seven days can be liquidated before the nominal fixed term on seven days or
less notice. Such repurchase agreements will be regarded as liquid instruments.

     In addition, a Fund, together with other registered investment companies
having advisory agreements with the Advisers or their affiliates, may transfer
uninvested cash balances into a single joint account, the daily aggregate
balance of which will be invested in one or more repurchase agreements.

REVERSE REPURCHASE AGREEMENTS
- -----------------------------

     The Balanced Fund may borrow money for temporary purposes by entering into
transactions called reverse repurchase agreements. Under these arrangements, the
Fund will sell portfolio securities to dealers in U.S. Government Securities or
members of the Federal Reserve System, with an agreement to repurchase the
security on an agreed date, price and interest payment. Reverse repurchase
agreements involve the possible risk that the value of portfolio securities the
Fund relinquishes may decline below the price the Fund must pay when the
transaction closes. Borrowings may magnify the potential for gain or loss on
amounts invested resulting in an increase in the speculative character of the
Fund's outstanding shares.

     When a Fund enters into a reverse repurchase agreement, it places in a
separate custodial account either liquid assets or other high grade debt
securities that have a value equal to or greater than the repurchase price. The
account is then continuously monitored to make sure that an appropriate value is
maintained. Reverse repurchase agreements are considered to be borrowings under
the 1940 Act

                            INVESTMENT RESTRICTIONS

     The following investment restrictions have been adopted by the Trust as
fundamental policies that cannot be changed without the affirmative vote of the
holders of a majority (as defined in the Act) of the outstanding voting
securities of the affected Fund. The investment objective of each Fund and all
other investment policies or practices of each Fund are considered by the Trust
not to be fundamental and accordingly may be changed without shareholder
approval.  See "Investment Objectives and Policies" in the Prospectus.  For
purposes of the Act, "majority" means the lesser of (a) 67% or more of the
shares of the Trust or a Fund present at a meeting, if the holders of more than
50% of the outstanding shares of the Trust or a Fund are present or represented
by proxy, or (b) more than 50% of the shares of the Trust or a Fund.  For
purposes of the following limitations, any limitation which involves a maximum
percentage shall not be considered violated unless an excess over the percentage
occurs immediately after, and is caused by, an acquisition or encumbrance of
securities or assets of, or borrowings by, a Fund.  With respect to the Funds'
fundamental investment restriction no. 3, asset coverage of at least 300% (as
defined in the Act), inclusive of any amounts borrowed, must be maintained at
all times.

     A Fund may not:

               (1)  Make any investment inconsistent with the Fund's
                    classification as a diversified company under the Investment
                    Company Act of 1940, as

                                     B-41
<PAGE>
 
                    amended (the "Act"). This restriction does not, however,
                    apply to any Fund classified as a non-diversified company
                    under the Act.

               (2)  Invest 25% or more of its total assets in the securities of
                    one or more issuers conducting their principal business
                    activities in the same industry (other than the Goldman
                    Sachs Real Estate Securities Fund, which will invest at
                    least 25% or more of its total assets in the real estate
                    industry) (excluding the U.S. Government or any of its
                    agencies or instrumentalities).

               (3)  Borrow money, except (a) the Fund may borrow from banks (as
                    defined in the Act) or through reverse repurchase agreements
                    in amounts up to 33-1/3% of its total assets (including the
                    amount borrowed), (b) the Fund may, to the extent permitted
                    by applicable law, borrow up to an additional 5% of its
                    total assets for temporary purposes, (c) the Fund may obtain
                    such short-term credits as may be necessary for the
                    clearance of purchases and sales of portfolio securities,
                    (d) the Fund may purchase securities on margin to the extent
                    permitted by applicable law and (e) the Fund may engage in
                    transactions in mortgage dollar rolls which are accounted
                    for as financings.

               (4)  Make loans, except through (a) the purchase of debt
                    obligations in accordance with the Fund's investment
                    objective and policies, (b) repurchase agreements with
                    banks, brokers, dealers and other financial institutions,
                    and (c) loans of securities as permitted by applicable law.

               (5)  Underwrite securities issued by others, except to the extent
                    that the sale of portfolio securities by the Fund may be
                    deemed to be an underwriting.

               (6)  Purchase, hold or deal in real estate, although a Fund may
                    purchase and sell securities that are secured by real estate
                    or interests therein, securities of real estate investment
                    trusts and mortgage-related securities and may hold and sell
                    real estate acquired by a Fund as a result of the ownership
                    of securities.

               (7)  Invest in commodities or commodity contracts, except that
                    the Fund may invest in currency and financial instruments
                    and contracts that are commodities or commodity contracts.

               (8)  Issue senior securities to the extent such issuance would
                    violate applicable law.

          Each Fund may, notwithstanding any other fundamental investment
restriction or policy, invest some or all of its assets in a single open-end
investment company or series thereof with substantially the same investment
objective, restrictions and policies as the Fund.

                                     B-42
<PAGE>
 
          In addition to the fundamental policies mentioned above, the Trustees
have adopted the following non-fundamental policies which can be changed or
amended by action of the Trustees without approval of shareholders.

          A Fund may not:

          (a)  Invest in companies for the purpose of exercising control or
               management.

          (b)  Invest more than 15% of the Fund's net assets in illiquid
               investments including repurchase agreements maturing in more than
               seven days, securities which are not readily marketable and
               restricted securities not eligible for resale pursuant to Rule
               144A under the 1933 Act.

          (c)  Purchase additional securities if the Fund's borrowings
               (excluding covered mortgage dollar rolls) exceed 5% of its net
               assets.

          (d)  Make short sales of securities, except short sales against the
               box.

                                     B-43
<PAGE>
 
                                  MANAGEMENT

          Information pertaining to the Trustees and officers of the Trust is
set forth below.  Trustees and officers deemed to be "interested persons" of the
Trust for purposes of the Act are indicated by an asterisk.


<TABLE>
<CAPTION>
NAME, AGE                            POSITIONS            PRINCIPAL OCCUPATION(S)
AND ADDRESS                          WITH TRUST             DURING PAST 5 YEARS
- -----------                          ----------           -----------------------
<S>                                  <C>                  <C>                     
Ashok N. Bakhru, 56                  Chairman             Executive Vice President - Finance and
1325 Ave. of the Americas            & Trustee            Administration and Chief Financial
New York, NY  10019                                       Officer, Coty Inc. (since April 1996);
                                                          President, ABN Associates (July 1994
                                                          - March 1996); Senior Vice President of
                                                          Scott Paper Company (until June 1994);
                                                          Director of Arkwright Mutual Insurance
                                                          Company (1994 - Present); Trustee of
                                                          International House of Philadelphia
                                                          (1989 - Present); Member of Cornell
                                                          University Council (1992 - Present);
                                                          Trustee of the Walnut Street Theater
                                                          (1992 - Present).

*David B. Ford, 52                   Trustee              Director, Commodities Corp. LLC (since
One New York Plaza                                        April 1997); Managing Director, J. Aron
New York, NY  10004                                       & Company (since November 1996);
                                                          Managing Director, Goldman, Sachs & Co.
                                                          Investment Banking Division (since
                                                          November 1996); Director, CIN Management
                                                          (since August 1996); Chief Executive
                                                          Officer & Managing Director and
                                                          Director, Goldman Sachs Asset Management
                                                          International (since November 1995 and
                                                          December 1994, respectively); Co-Head,
                                                          Goldman, Sachs & Co. Asset Management
                                                          Division (since November 1995); Co-Head
                                                          and Director, Goldman Sachs Funds
                                                          Management Inc. (since November 1995 and
                                                          December 1994, respectively); Chairman
                                                          and Director, Goldman Sachs Asset
                                                          Management Japan Limited (since November
                                                          1994).
</TABLE>

                                      B-44
<PAGE>
 
<TABLE>
<CAPTION>
NAME, AGE                            POSITIONS            PRINCIPAL OCCUPATION(S)
AND ADDRESS                          WITH TRUST             DURING PAST 5 YEARS
- -----------                          ----------           -----------------------
<S>                                  <C>                  <C>                     
*Douglas C. Grip, 36                 Trustee              Managing Director, Goldman, Sachs & Co.
One New York Plaza                   & President          Asset Management Division (since
New York, NY  10004                                       November 1997); President, Goldman Sachs
                                                          Fund Group (since April 1996); President,
                                                          MFS Retirement Services Inc., of
                                                          Massachusetts Financial Services (prior
                                                          thereto).
 
*John P. McNulty, 46                 Trustee              Managing Director, Goldman Sachs (since
One New York Plaza                                        1996); General Partner, J. Aron &
New York, NY  10004                                       Company (since November 1995); Director
                                                          and Co-Head, Goldman Sachs Funds
                                                          Management Inc. (since November 1995);
                                                          Director, Goldman Sachs Asset Management
                                                          International (since January 1996);
                                                          Director, Global Capital Reinsurance
                                                          (since 1989); Director, Commodities
                                                          Corp. LLC (since April 1997); Limited
                                                          Partner of Goldman, Sachs & Co. (1994 -
                                                          November 1995).
                                                           
Mary P. McPherson, 63                Trustee              Vice President and Senior Program
The Andrew W. Mellon                                      Officer, The Andrew W. Mellon Foundation
Foundation                                                (since October 1997); President Emeritus    
140 East 62nd Street                                      of Bryn Mawr College (1978 - 1997);            
New York, NY  10021                                       Director of Josiah Macy, Jr. Foundation      
                                                          (since 1977); Director of the                
                                                          Philadelphia Contributionship (since         
                                                          1985); Director of Amherst College           
                                                          (since 1986); Director of Dayton Hudson      
                                                          Corporation (1988 - 1997); Director of the     
                                                          Spenser Foundation (since 1993); and         
                                                          member of PNC Advisory Board (since          
                                                          1993).                                       
                                                                                                       
*Alan A. Shuch, 49                   Trustee              Limited Partner, Goldman, Sachs &
One New York Plaza                                        Co.(since 1994); Consultant to Goldman
New York, NY  10004                                       Sachs Asset Management (since 1994);
                                                          Director, Chief Operating Officer and
                                                          Vice President of Goldman Sachs Funds
                                                          Management, Inc. (from November 1993 -
                                                          November 1994); President and Chief
                                                          Operating Officer, GSAM - Japan 
</TABLE> 

                                      B-45
<PAGE>
 
<TABLE> 
<CAPTION> 
NAME, AGE                            POSITIONS            PRINCIPAL OCCUPATION(S)
AND ADDRESS                          WITH TRUST             DURING PAST 5 YEARS
- -----------                          ----------           -----------------------
<S>                                  <C>                  <C>                     
                                                          Limited (November 1993  November 1994);
                                                          Director, Goldman Sachs Asset Management
                                                          International (November 1993 - November
                                                          1994); General Partner, Goldman, Sachs &
                                                          Co. Investment Banking (December 1986 -
                                                          November 1994).
 
Jackson W. Smart, Jr. 68             Trustee              Chairman, Executive Committee, First
One Northfield Plaza Suite 218                            Commonwealth, Inc. (a managed dental
Northfield, IL  60093                                     care company) (since January 1996);
                                                          Chairman and Chief Executive Officer,
                                                          MSP Communications Inc. (a company
                                                          engaged in radio broadcasting) (November
                                                          1988 - December 1997); Director, Federal
                                                          Express Corporation (NYSE) (since 1976);
                                                          Director, Evanston Hospital Corporation
                                                          (since 1980).
 
William H. Springer, 69              Trustee              Director, Walgreen Co. (a retail drug
701 Morningside Drive                                     store business) (since April 1998);
Lake Forest, IL  60045                                    Director of Baker, Fentress & Co. (a
                                                          closed-end, non-diversified management
                                                          investment company) (April 1992 -
                                                          present); Trustee, Northern
                                                          Institutional Funds (since April 1984).
 
Richard P. Strubel, 59               Trustee              Managing Director, Tandem Partners, Inc.
737 N. Michigan Ave., Suite 1405                          (since 1990); Director of Kaynar
Chicago, IL  60611                                        Technologies Inc. (since March 1997);
                                                          President and Chief Executive Officer,
                                                          Microdot, Inc. (a diversified
                                                          manufacturer of fastening systems and
                                                          connectors) (January 1984 - October
                                                          1994); Trustee, Northern Institutional
                                                          Funds (since December 1982).
 
*Nancy L. Mucker, 49                 Vice President       Vice President, Goldman, Sachs & Co.
4900 Sears Tower                                          (since April 1985); Co-Manager of
Chicago, IL  60606                                        Shareholder Servicing of GSAM (since
                                                          November 1989).
</TABLE> 
 
                                      B-46
<PAGE>
 
<TABLE> 
<CAPTION> 
NAME, AGE                            POSITIONS            PRINCIPAL OCCUPATION(S)
AND ADDRESS                          WITH TRUST             DURING PAST 5 YEARS
- -----------                          ----------           -----------------------
<S>                                  <C>                  <C>                     
*John M. Perlowski, 34               Treasurer            Vice President, Goldman, Sachs & Co.
One New York Plaza                                        Incorporated (since July 1995);
New York, NY  10004                                       Director, Investors Bank and Trust
                                                          (November 1993 - July 1995).
 
*James A. Fitzpatrick, 38            Vice President       Vice President of Goldman Sachs Asset
4900 Sears Tower                                          Management (since April 1997); Vice
Chicago, IL  60606                                        President and General Manager, First
                                                          Data Corporation - Investor Services
                                                          Group (prior thereto).
 
*Jesse Cole, 35                      Vice President       Vice President, Goldman Sachs Asset
4900 Sears Tower                                          Management June 1998 to Present); Vice
Chicago, IL  60606                                        President, AIM Management Group, Inc.
                                                          (April 1996 - June 1998); Assistant Vice
                                                          President, The Northern Trust Company
                                                          (June 1987 - April 1996)
 
*Philip V. Giuca , Jr., 36           Assistant            Vice President, Goldman, Sachs & Co.
10 Hanover Square                    Treasurer            (May 1992 - Present); Tax Accountant,
New York, NY  10004                                       Goldman, Sachs & Co. (December 1990 - May
                                                          1992).
 
*Anne Marcel, 40                     Vice President       Vice President, Goldman Sachs Assets
4900 Sears Tower                                          Management (June 1998 - Present); Vice
Chicago, IL  60606                                        President, Stein Roe & Farnham, Inc.
                                                          (October 1992 - June 1998).
 
*Michael J. Richman, 38              Secretary            General Counsel of the Funds Group of
85 Broad Street                                           Goldman Sachs Asset Management (since
New York, NY  10004                                       December 1997); Associate General
                                                          Counsel of Goldman Sachs Asset
                                                          Management (February 1994 - December
                                                          1997); Vice President and Assistant
                                                          General Counsel of Goldman, Sachs & Co.
                                                          (since June 1992); Counsel to the Funds
                                                          Group, GSAM (June 1992 - December 1997);
                                                          Partner, Hale and Dorr (September 1991 -
                                                          June 1992).
</TABLE> 
 
                                      B-47
<PAGE>
 
<TABLE> 
<CAPTION> 
NAME, AGE                            POSITIONS            PRINCIPAL OCCUPATION(S)
AND ADDRESS                          WITH TRUST             DURING PAST 5 YEARS
- -----------                          ----------           -----------------------
<S>                                  <C>                  <C>                      
*Howard B. Surloff, 33               Assistant            Assistant General Counsel, Goldman Sachs
85 Broad Street                      Secretary            Asset Management and Associate General
New York, NY  10004                                       Counsel to the Funds Group (since
                                                          December 1997); Assistant General
                                                          Counsel and Vice President, Goldman,
                                                          Sachs & Co. (since November 1993 and May
                                                          1994, respectively); Counsel to the
                                                          Funds Group, Goldman Sachs Asset
                                                          Management (November 1993 - December
                                                          1997); Associate of Shereff, Friedman,
                                                          Hoffman & Goodman (prior thereto).
 
*Valerie A. Zondorak, 32             Assistant            Assistant General Counsel, Goldman Sachs
85 Broad Street                      Secretary            Asset Management and Assistant General
New York, NY  10004                                       Counsel to the Funds Group (since
                                                          December 1997); Vice President and
                                                          Assistant General Counsel, Goldman,
                                                          Sachs & Co. (since March 1997 and
                                                          December 1997, respectively); Counsel to
                                                          the Funds Group, Goldman Sachs Asset
                                                          Management (March 1997 - December 1997);
                                                          Associate of Shereff, Friedman, Hoffman
                                                          & Goodman (prior thereto).
 
*Steven E. Hartstein, 35             Assistant            Associate, Goldman, Sachs & Co.
85 Broad Street                      Secretary            (December 1998 - present); Legal
New York, NY  10004                                       Products Analyst, Goldman, Sachs & Co.
                                                          (June 1993 - December 1998).
 
*Deborah A. Farrell, 27              Assistant            Legal Assistant, Goldman, Sachs & Co.
85 Broad Street                      Secretary            (since January 1996); Executive
New York, NY  10004                                       Secretary, Goldman, Sachs & Co. (January
                                                          1994 - January 1996); Legal Secretary,
                                                          Cleary, Gottlieb, Steen and Hamilton
                                                          (September 1990 - January 1994).
</TABLE> 
 
                                      B-48
<PAGE>
 
<TABLE> 
<CAPTION> 
NAME, AGE                            POSITIONS            PRINCIPAL OCCUPATION(S)
AND ADDRESS                          WITH TRUST             DURING PAST 5 YEARS
- -----------                          ----------           -----------------------
<S>                                  <C>                  <C>                      
*Kaysie P. Uniacke, 37               Assistant            Managing Director, Goldman Sachs Asset
One New York Plaza                   Secretary            Management (since 1997), Vice President
New York, NY  10004                                       and Senior Portfolio Manager, Goldman
                                                          Sachs Asset Management (since 1988).
 
 
*Elizabeth D. Anderson, 29           Assistant            Portfolio Manager, Goldman Sachs Asset
One New York Plaza                   Secretary            Management (since April 1996); Junior
New York, NY  10004                                       Portfolio Manager, Goldman Sachs Asset
                                                          Management (1995 - April 1996); Funds
                                                          Trading Assistant, Goldman Sachs Asset
                                                          Management (1993 - 1995); Compliance
                                                          Analyst, Prudential Insurance (1991 -
                                                          1993).
</TABLE>

     Each interested Trustee and officer holds comparable positions with certain
other companies of which Goldman Sachs, GSAM or an affiliate thereof is the
investment adviser, administrator and/or distributor.  As of April 3, 1998, the
Trustees and officers of the Trust as a group owned less than 1% of the
outstanding shares of beneficial interest of each Fund.

     The Trust pays each Trustee, other than those who are "interested persons"
of Goldman Sachs, a fee for each Trustee meeting attended and an annual fee.
Such Trustees are also reimbursed for travel expenses incurred in connection
with attending such meetings.

                                      B-49
<PAGE>
 
The following table sets forth certain information with respect to the
compensation of each Trustee of the Trust (or its predecessors) for the one-year
period ended January 31, 1998:

<TABLE>
<CAPTION>
                                   Aggregate           Pension or Retirement Benefits       Total Compensation from Goldman
                                  Compensation           Accrued as Part of Funds'        Sachs Mutual Funds (including the
                                                         -------------------------
Name of Trustee                  from the Funds                  Expenses                               Funds)**
- ---------------                  --------------                  --------                               ------
<S>                              <C>                   <C>                                <C>
Ashok N. Bakhru*                      $93,750                       $0                                   $93,750
David B. Ford                               0                        0                                         0
Douglas C. Grip                             0                        0                                         0       
John P. McNulty                             0                        0                                         0
Mary P. McPherson                      70,500                        0                                    70,500
Alan A. Shuch                               0                        0                                         0
Jackson W. Smart                       70,500                        0                                    70,500
William H. Springer                    70,500                        0                                    70,500
Richard P. Strubel                     70,500                        0                                    70,500
</TABLE>

___________________
    *   Includes compensation as Chairman of the Board of Trustees.
    **  The Goldman Sachs Funds consisted of 43 mutual funds on January
        31, 1998.

                                       B-50
<PAGE>
 
MANAGEMENT SERVICES
===================

          As stated in the Funds' Prospectus, GSFM, One New York Plaza, New
York, New York, a Delaware limited partnership and an affiliate of Goldman
Sachs, 85 Broad Street, New York, New York, serves as investment adviser to CORE
U.S. Equity and Capital Growth Funds.  GSAM, One New York Plaza, New York, New
York, a separate operating division of Goldman Sachs, serves as investment
adviser to Balanced, Growth and Income, CORE Large Cap Value, CORE Large Cap
Growth, CORE Small Cap Equity, CORE International Equity, Real Estate
Securities, Mid Cap Equity and Small Cap Value Funds.  GSAMI, 133 Peterborough
Court, London, England, EC4A 2BB serves as investment adviser to International
Equity, European Equity, Japanese Equity, International Small Cap, Emerging
Markets Equity and Asia Growth Funds. See "Management" in the Funds' Prospectus
for a description of the applicable Adviser's duties to the Funds.

          Founded in 1869, Goldman Sachs is among the oldest and largest
investment banking firms in the United States.  Goldman Sachs is a leader in
developing portfolio strategies and in many fields of investing and financing,
participating in financial markets worldwide and serving individuals,
institutions, corporations and governments.  Goldman Sachs is also among the
principal market sources for current and thorough information on companies,
industrial sectors, markets, economies and currencies,  and trades and makes
markets in a wide range of equity and debt securities 24-hours a day.  The firm
is headquartered in New York and has offices throughout the U.S. and in Beijing,
Frankfurt, George Town, Hong Kong, London, Madrid, Mexico City, Milan, Montreal,
Osaka, Paris, Sao Paulo, Seoul, Shanghai, Singapore, Sydney, Taipei, Tokyo,
Toronto, Vancouver and Zurich.  It has trading professionals throughout the
United States, as well as in London, Tokyo, Hong Kong and Singapore.  The active
participation of Goldman Sachs in the world's financial markets enhances its
ability to identify attractive investments.

          The Advisers have access to the substantial research and market
expertise of Goldman Sachs whose investment research effort is one of the
largest in the industry.  The Goldman Sachs Global Investment Research
Department covers approximately 1,700 companies, including approximately 2,000
U.S. corporations in 60 industries.  The in-depth information and analyses
generated by Goldman Sachs' research analysts are available to the Advisers. For
more than a decade, Goldman Sachs has been among the top-ranked firms in
Institutional Investor's annual "All-America Research Team" survey.  In
addition, many of Goldman Sachs' economists, securities analysts, portfolio
strategists and credit analysts have consistently been highly ranked in
respected industry surveys conducted in the U.S. and abroad.  Goldman Sachs is
also among the leading investment firms using quantitative analytics (now used
by a growing number of investors) to structure and evaluate portfolios.

          In managing the Funds, the Advisers have access to Goldman Sachs'
economics research.  The Economics Research Department conducts economic,
financial and currency markets research which analyzes economic trends and
interest and exchange rate movement worldwide.  The Economics Research
Department tracks factors such as inflation and money supply figures, balance of
trade figures, economic growth, commodity prices, monetary and fiscal policies,
and political events that can influence interest rates and currency trends.  The
success of Goldman Sachs' international research team has brought wide
recognition to its members.  The team has 

                                     B-51
<PAGE>
 
earned top rankings in the Institutional Investor's annual "All British Research
Team Survey" in the following categories: Economics (U.K.) 1986-1993;
Economics/International 1989-1993; and Currency Forecasting 1986-1993. In
addition, the team has also earned top rankings in the annual "Extel Financial
Survey" of U.K. investment managers in the following categories: U.K. Economy
1989-1995; International Economies 1986, 1988-1995; and Currency Movements 1986-
1993.

          In allocating assets among foreign countries and currencies for the
Funds which can invest in foreign securities (in particular, the CORE
International Equity, International Equity, International Small Cap, Emerging
Markets Equity and Asia Growth Funds), the Advisers will have access to the
Global Asset Allocation Model. The model is based on the observation that the
prices of all financial assets, including foreign currencies, will adjust until
investors globally are comfortable holding the pool of outstanding assets.
Using the model, the Advisers will estimate the total returns from each currency
sector which are consistent with the average investor holding a portfolio equal
to the market capitalization of the financial assets among those currency
sectors.  These estimated equilibrium returns are then combined with the
expectations of Goldman Sachs' research professionals to produce an optimal
currency and asset allocation for the level of risk suitable for a Fund given
its investment objectives and criteria.

          Each Fund's management agreement provides that the Advisers may render
similar services to others as long as the services provided by the Advisers
thereunder are not impaired thereby.

          The  CORE Large Cap Value, European Equity, Japanese Equity and
International Small Cap Funds' management agreements were initially approved by
the Trustees, including a majority of the non-interested Trustees (as defined
below) who are not parties to the management agreement on November 3, 1998, July
22, 1998, April 23, 1998 and April 23, 1998, respectively.  The CORE Small Cap
Equity, CORE International Equity and Real Estate Securities Funds' management
agreements were initially approved by the Trustees, including a majority of the
non-interested Trustees (as defined below) who are not parties to the management
agreements, on July 22, 1997.  The CORE Large Cap Growth and Emerging Markets
Equity Funds' management agreements were initially approved by the Trustees,
including a majority of the non-interested Trustees (as defined below) who are
not parties to the management agreements, on April 23, 1997. The other Funds'
management agreements were most recently approved by the Trustees, including a
majority of the Trustees who are not parties to the management agreements or
"interested persons" (as such term is defined in the Act) of any party thereto
(the "non-interested Trustees"), on April 22, 1998. These arrangements were most
recently approved by the shareholders of each Fund (other than CORE Large Cap
Value, CORE Large Cap Growth, CORE Small Cap Equity, CORE International Equity,
Real Estate Securities, European Equity, Japanese Equity, International Small
Cap and Emerging Markets Equity Funds) on April 21, 1997.  The sole shareholder
of the CORE Large Cap Value, CORE Large Cap Growth, CORE Small Cap Equity, CORE
International Equity, Emerging Markets Equity, Real Estate Securities, Japanese
Equity, International Small Cap and European Equity Funds approved these
arrangements on November 3, 1998, April 30, 1997, July 21, 1997, July 21, 1997,
January 28, 1997, July 21, 1997, April 23, 1998, April 23, 1998 and July 22,
1998, respectively.  Each management agreement will remain in effect until June
30, 1999 and from year to year thereafter provided such continuance is
specifically approved at least annually by (a) the vote of a majority 

                                     B-52
<PAGE>
 
of the outstanding voting securities of such Fund or a majority of the Trustees,
and (b) the vote of a majority of the non-interested Trustees, cast in person at
a meeting called for the purpose of voting on such approval. Each management
agreement will terminate automatically if assigned (as defined in the Act) and
is terminable at any time without penalty by the Trustees or by vote of a
majority of the outstanding voting securities of the affected Fund on 60 days'
written notice to the Adviser and by the Adviser on 60 days' written notice to
the Trust.

          Pursuant to the management agreements the Advisers are entitled to
receive the fees listed below, payable monthly based on such Fund's average
daily net assets.  In addition, the Advisers are voluntarily limiting their
management fees for certain funds to the annual rates also listed below:

<TABLE>
<CAPTION>
                                                               Management            Management
                                                               With Fee              Without Fee
Fund                                                           Limitations           Limitations
- ----                                                           -----------           -----------
<S>                                                            <C>                   <C>
GSAM
Balanced Fund                                                  0.65%                 0.65%
Growth and Income Fund                                         0.70%                 0.70%
CORE Large Cap Value Fund                                      0.60%                 0.60%
CORE Large Cap Growth Fund                                     0.60%                 0.75%
CORE Small Cap Equity Fund                                     0.85%                 0.85%
CORE International Equity Fund                                 0.85%                 0.85%
Mid Cap Equity Fund                                            0.75%                 0.75%
Small Cap Value Fund                                           1.00%                 1.00%
Real Estate Securities Fund                                    1.00%                 1.00%
 
GSFM
CORE U.S. Equity Fund                                          0.70%                 0.75%
Capital Growth Fund                                            1.00%                 1.00%
 
GSAMI
International Equity Fund                                      1.00%                 1.00%
European Equity                                                1.00%                 1.00%
Japanese Equity Fund                                           1.00%                 1.00%
International Small Cap Fund                                   1.20%                 1.20%
Emerging Markets Equity Fund                                   1.20%                 1.20%
Asia Growth Fund                                               1.00%                 1.00%
</TABLE>


          GSAM, GSFM and GSAMI may discontinue or modify the above limitations
in the future at their discretion.

          Prior to May 1, 1997, the Funds then in operation had separate
investment advisory (and subadvisory, in the case of the International Equity
Fund) and administration agreements. Effective May 1, 1997, the services under
such agreements were combined in the management agreement. The services required
to be performed for the Funds and the combined advisory (and subadvisory, in the
case of the International Equity Fund) and administration fees payable by the
Funds under the

                                     B-53
<PAGE>
 
former advisory (and subadvisory, in the case of the International Equity Fund)
and administration agreements are identical to the services and fees under the
management agreement.

          For the last three fiscal years the amounts of the combined investment
advisory (and subadvisory, in the case of the International Equity Fund) and
administration fees incurred by each Fund then in existence were as follows
(with and without the fee limitations that were then in effect):

<TABLE>
<CAPTION>
                                           1998                     1997                      1996
                                 ========================  ========================  ========================
                                 With Fee     Without Fee  With Fee     Without Fee  With Fee     Without Fee
                                 Limitations  Limitations  Limitations  Limitations  Limitations  Limitations
                                 -----------  -----------  -----------  -----------  -----------  -----------
<S>                              <C>          <C>          <C>          <C>          <C>          <C>
Balanced Fund                    $   870,444  $   870,844   $  402,183   $  402,183   $  193,041   $  193,041
Growth and Income Fund             7,740,380    7,740,380    3,541,318    3,541,318    2,225,553    2,225,553
CORE Large Cap Value Fund/1/             N/A          N/A          N/A          N/A          N/A          N/A
CORE U.S. Equity Fund              3,087,383    3,924,639    1,667,381    2,119,552      817,563    1,019,639
CORE Large Cap Growth Fund/1/        182,628      228,283          N/A          N/A          N/A          N/A
CORE Small Cap Equity Fund/1/         65,418       74,140          N/A          N/A          N/A          N/A
CORE International Equity Fund/1/     51,031       57,835          N/A          N/A          N/A          N/A
Capital Growth Fund               10,913,224   10,913,224    8,697,265    8,697,265    9,335,745    9,335,745
Mid Cap Equity Fund                1,653,946    1,653,946      964,945      964,945      489,043      489,043
International Equity Fund          6,772,826    7,525,362    4,124,076    4,638,203    2,794,872    2,794,872
Small Cap Value Fund               3,206,411    3,206,411    2,130,703    2,130,703    2,908,839    2,908,839
European Equity Fund/1/                  N/A          N/A          N/A          N/A          N/A          N/A
Japanese Equity Fund/1/                  N/A          N/A          N/A          N/A          N/A          N/A
International Small Cap Fund/1/          N/A          N/A          N/A          N/A          N/A          N/A
Emerging Market Equity Fund/1/        31,937       34,840          N/A          N/A          N/A          N/A
Asia Growth Fund                   1,874,193    2,179,299    2,221,857    2,583,555    1,563,641    1,563,641
Real Estate Securities Fund/1/           N/A          N/A          N/A          N/A          N/A          N/A
</TABLE>


1         The CORE Large Cap Value, CORE Large Cap Growth, CORE Small Cap
          Equity, CORE International Equity, European Equity, Japanese Equity,
          International Small Cap, Emerging Markets Equity and Real Estate
          Securities Funds commenced operations on December 15, 1998, May 1,
          1997, August 15, 1997, August 15, 1997, October 1, 1998, May 1, 1998,
          May 1, 1998, December 15, 1997 and July 27, 1998, respectively.

          Under the Management Agreement, each Adviser also: (i) supervises all
non-advisory operations of each Fund that it advises; (ii) provides personnel to
perform such executive, administrative and clerical services as are reasonably
necessary to provide effective administration of each Fund; (iii) arranges for
at each Fund's expense: (a) the preparation of all required tax returns, (b) the
preparation and submission of reports to existing shareholders, (c) the periodic
updating of prospectuses and statements of additional information and (d) the
preparation of reports to be filed with the SEC and other regulatory
authorities; (iv) maintains each Fund's records; and (v) provides office space
and all necessary office equipment and services.


          ACTIVITIES OF GOLDMAN SACHS AND ITS AFFILIATES AND OTHER ACCOUNTS
MANAGED BY GOLDMAN SACHS. The involvement of the Advisers and Goldman Sachs and
their affiliates in the management of, or their interest in, other accounts and
other activities of Goldman Sachs may present conflicts of interest with respect
to the Funds or impede their investment activities.

                                     B-54
<PAGE>
 
          Goldman Sachs and its affiliates, including, without limitation, the
Advisers and their advisory affiliates, have proprietary interests in, and may
manage or advise with respect to, accounts or funds (including separate accounts
and other funds and collective investment vehicles) which have investment
objectives similar to those of the Funds and/or which engage in transactions in
the same types of securities, currencies and instruments as the Funds.  Goldman
Sachs and its affiliates are major participants in the global currency,
equities, swap and fixed-income markets, in each case both on a proprietary
basis and for the accounts of customers.  As such, Goldman Sachs and its
affiliates are actively engaged in transactions in the same securities,
currencies and instruments in which the Funds invest.  Such activities could
affect the prices and availability of the securities, currencies and instruments
in which the Funds will invest, which could have an adverse impact on each
Fund's performance.  Such transactions, particularly in respect of proprietary
accounts or customer accounts other than those included in the Advisers' and
their advisory affiliates' asset management activities, will be executed
independently of the Funds' transactions and thus at prices or rates that may be
more  or less favorable.  When the Advisers and their advisory affiliates seek
to purchase or sell the same assets for their managed accounts, including the
Funds, the assets actually purchased or sold may be allocated among the accounts
on a basis determined in its good faith discretion to be equitable.  In some
cases, this system may adversely affect the size or the price of the assets
purchased or sold for the Funds.

          From time to time, the Funds' activities may be restricted because of
regulatory restrictions applicable to Goldman Sachs and its affiliates, and/or
their internal policies designed to comply with such restrictions.  As a result,
there may be periods, for example, when the Advisers and/or their affiliates
will not initiate or recommend certain types of transactions in certain
securities or instruments with respect to which the Advisers and/or their
affiliates are performing services or when position limits have been reached.

          In connection with their management of the Funds, the Advisers may
have access to certain fundamental analysis and proprietary technical models
developed by Goldman Sachs and other affiliates. The Advisers will not be under
any obligation, however, to effect transactions on behalf of the Funds in
accordance with such analysis and models. In addition, neither Goldman Sachs nor
any of its affiliates will have any obligation to make available any information
regarding their proprietary activities or strategies, or the activities or
strategies used for other accounts managed by them, for the benefit of the
management of the Funds and it is not anticipated that the Advisers will have
access to such information for the purpose of managing the Funds. The
proprietary activities or portfolio strategies of Goldman Sachs and its
affiliates or the activities or strategies used for accounts managed by them or
other customer accounts could conflict with the transactions and strategies
employed by the Advisers in managing the Funds.

          The results of each Fund's investment activities may differ
significantly from the results achieved by the Advisers and their affiliates for
their proprietary accounts or accounts (including investment companies or
collective investment vehicles) managed or advised by them. It is possible that
Goldman Sachs and its affiliates and such other accounts will achieve investment
results which are substantially more or less favorable than the results achieved
by a Fund. Moreover, it is possible that a Fund will sustain losses during
periods in which Goldman Sachs and its affiliates achieve significant profits on
their trading for proprietary or other accounts. The opposite result is also
possible.

                                     B-55
<PAGE>
 
          The investment activities of Goldman Sachs and its affiliates for
their proprietary accounts and accounts under their management may also limit
the investment opportunities for the Fund in certain emerging markets in which
limitations are imposed upon the aggregate amount of investment, in the
aggregate or individual issuers, by affiliated foreign investors.

          An investment policy committee which may include partners of Goldman
Sachs and its affiliates may develop general policies regarding a Fund's
activities but will not be involved in the day-to-day management of such Fund.
In such instances, those individuals may, as a result, obtain information
regarding the Fund's proposed investment activities which is not generally
available to the public. In addition, by virtue of their affiliation with
Goldman Sachs, any such member of an investment policy committee will have
direct or indirect interests in the activities of Goldman Sachs and its
affiliates in securities and investments similar to those in which the Fund
invests.

          In addition, certain principals and certain of the employees of the
Advisers are also principals or employees of Goldman Sachs or their affiliated
entities.  As a result, the performance by these principals and employees of
their obligations to such other entities may be a consideration of which
investors in the Funds should be aware.

          Each Adviser may enter into transactions and invest in currencies or
instruments on behalf of a Fund in which customers of Goldman Sachs serve as the
counterparty, principal or issuer.  In such cases, such party's interests in the
transaction will be adverse to the interests of a Fund, and such party may have
no incentive to assure that the Funds obtain the best possible prices or terms
in connection with the transactions.  Goldman Sachs and its affiliates may also
create, write or issue derivative instruments for customers of Goldman Sachs or
its affiliates, the underlying securities or instruments of which may be those
in which a Fund invests or which may be based on the performance of a Fund.  The
Funds may, subject to applicable law, purchase investments which are the subject
of an underwriting or other distribution by Goldman Sachs or its affiliates and
may also enter transactions with other clients of Goldman Sachs or its
affiliates where such other clients have interests adverse to those of the
Funds.  At times, these activities may cause departments of the Firm to give
advice to clients that may cause these clients to take actions adverse to the
interests of the client. To the extent affiliated transactions are permitted,
the Funds will deal with Goldman Sachs and its affiliates on an arms-length
basis.

          Each Fund will be required to establish business relationships with
its counterparties based on the Fund's own credit standing. Neither Goldman
Sachs nor its affiliates will have any obligation to allow their credit to be
used in connection with a Fund's establishment of its business relationships,
nor is it expected that a Fund's counterparties will rely on the credit of
Goldman Sachs or any of its affiliates in evaluating the Fund's
creditworthiness.

          From time to time, Goldman Sachs or any of its affiliates may, but is
not required to, purchase and hold shares of a Fund in order to increase the
assets of the Fund. Increasing a Fund's assets may enhance investment
flexibility and diversification and may contribute to economies of scale that
tend to reduce the Fund's expense ratio. Goldman Sachs reserves the right to
redeem at any time some or all of the shares of a Fund acquired for its own
account. A large redemption of shares of a Fund by Goldman Sachs could
significantly reduce the asset size of the Fund, which might have an adverse
effect on the Fund's investment flexibility, portfolio diversification and

                                     B-56
<PAGE>
 
expense ratio. Goldman Sachs will consider the effect of redemptions on a Fund
and other shareholders in deciding whether to redeem its shares.

          It is possible that a Fund's holdings will include securities of
entities for which Goldman Sachs performs investment banking services as well as
securities of entities in which Goldman Sachs makes a market. From time to time,
Goldman Sachs' activities may limit the Funds' flexibility in purchases and
sales of securities. When Goldman Sachs is engaged in an underwriting or other
distribution of securities of an entity, the Advisers may be prohibited from
purchasing or recommending the purchase of certain securities of that entity for
the Funds.


DISTRIBUTOR AND TRANSFER AGENT
==============================

          Goldman Sachs serves as the exclusive distributor of shares of the
Funds pursuant to a "best efforts" arrangement as provided by a distribution
agreement with the Trust on behalf of each Fund. Pursuant to the distribution
agreement, after the Prospectus and periodic reports have been prepared, set in
type and mailed to shareholders, Goldman Sachs will pay for the printing and
distribution of copies thereof used in connection with the offering to
prospective investors. Goldman Sachs will also pay for other supplementary sales
literature and advertising costs. Goldman Sachs may enter into sales agreements
with certain investment dealers and other financial service firms (the
"Authorized Dealers") to solicit subscriptions for Shares of the Funds. Goldman
Sachs receives a portion of the sales charge imposed on the sale, in the case of
Class A Shares, or redemption in the case of Class B and Class C Shares (and in
certain cases, Class A Shares), of such Fund shares. No Class B Shares were
outstanding during the fiscal year ended January 31, 1996. No Class C Shares
were outstanding during the fiscal years ended January 31, 1996 and 1997.

          Goldman Sachs retained the following commissions on sales of Class A,
Class B and Class C Shares during the following periods:

<TABLE>
<CAPTION>
                                                 Class A & B          Class A & B            Class A
                                                 -----------          -----------            -------
                                                     1998                1997                  1997
                                                     ====                ====                  ====          
<S>                                              <C>                  <C>                    <C>
Balanced Fund                                    $  387,000           $   94,000              $ 28,000
Growth and Income Fund                            2,405,000              555,000               771,000
CORE Large Cap Value Fund/1/                            N/A                  N/A                   N/A
CORE U.S. Equity Fund                               566,000              380,000               108,000
CORE Large Cap Growth Fund/1/                       129,000                  N/A                   N/A
CORE Small Cap Equity Fund/1/                        49,000                  N/A                   N/A
CORE International Equity Fund/1/                    24,000                  N/A                   N/A
Capital Growth Fund                                 743,000              323,000               523,000
Mid Cap Equity Fund                                 704,000                  N/A                   N/A
International Equity Fund                         1,091,000            1,563,000               211,000
Small Cap Value Fund                                662,000              219,000               202,000
European Equity/1/                                      N/A                  N/A                   N/A
Japanese Equity Fund/1/                                 N/A                  N/A                   N/A
International Small Cap Fund/1/                         N/A                  N/A                   N/A
Emerging Market Equity Fund/1/                      107,000                  N/A                   N/A
Asia Growth Fund                                    414,000            1,397,000               507,000
Real Estate Securities Fund/1/                          N/A                  N/A                   N/A
</TABLE>

                                     B-57
<PAGE>
 
- ---------------------------------

1         The CORE Large Cap Value, CORE Large Cap Growth, CORE Small Cap
          Equity, CORE International Equity, European Equity, Japanese Equity,
          International Small Cap, Emerging Markets Equity and Real Estate
          Securities Funds commenced operations on December 15, 1998, May 1,
          1997, August 15, 1997, August 15, 1997, October 1, 1998, May 1, 1998,
          May 1, 1998, December 15, 1997 and July 27, 1998, respectively.

          Goldman Sachs serves as the Trust's transfer agent. Under its transfer
agency agreement with the Trust, Goldman Sachs has undertaken with the Trust to
(i) record the issuance, transfer and redemption of shares, (ii) provide
confirmations of purchases and redemptions, and quarterly statements, as well as
certain other statements, (iii) provide certain information to the Trust's
custodian and the relevant sub-custodian in connection with redemptions, (iv)
provide dividend crediting and certain disbursing agent services, (v) maintain
shareholder accounts, (vi) provide certain state Blue Sky and other information,
(vii) provide shareholders and certain regulatory authorities with tax related
information, (viii) respond to shareholder inquiries, and (ix) render certain
other miscellaneous services. For the last three fiscal years the amounts paid
to Goldman Sachs by each Fund then in existence performed were as follows under
the fee schedules then in effect:

                                     B-58
<PAGE>
 
<TABLE>
<CAPTION>
                                  Class A , B & C    Class A & B       Class A
                                  ---------------    -----------       -------
                                       1998              1997            1996
                                       ====              ====            ====
<S>                               <C>                <C>               <C>
Balanced Fund                       $  240,869          $148,576       $ 72,067
Growth and Income Fund               1,545,495           870,527        542,671
CORE Large Cap Value Fund/1/               N/A               N/A            N/A
CORE U.S. Equity Fund                  483,534           319,246        103,682
CORE Large Cap Growth Fund/1/          107,944               N/A            N/A
CORE Small Cap Equity Fund/1/           62,625               N/A            N/A
CORE International Equity Fund/1/       36,474               N/A            N/A
Capital Growth Fund                    992,678           908,310        549,844
MidCap Equity Fund                     142,558               N/A            N/A
International Equity Fund              860,719           586,243        129,313
Small Cap Value Fund                   595,479           511,883        254,292
European Equity/1/                         N/A               N/A            N/A
Japanese Equity Fund/1/                    N/A               N/A            N/A
International Small Cap Fund/1/            N/A               N/A            N/A
Emerging Markets Equity Fund/1/          1,907               N/A            N/A
Asia Growth Fund                       370,233           385,114        192,097
Real Estate Securities Fund/1/             N/A               N/A            N/A
</TABLE>


<TABLE>
<CAPTION>
                                                   Institutional Shares                                 Service Shares
                                      ----------------------------------------------             -------------------------------
                                         1998               1997               1996                  1998              1997
                                         ====               ====               ====                  ====              ====   
<S>                                   <C>              <C>               <C>                     <C>                 <C> 
Balanced Fund/1/                      $    N/A         $     N/A         $      N/A                $  N/A            $  N/A
Growth and Income Fund                   2,593                15                N/A                 5,033               488
CORE Large Cap Value Fund/1/               N/A               N/A                N/A                   N/A               N/A
CORE U.S. Equity Fund                        0               N/A             11,571                     0               N/A
CORE Large Cap Growth Fund/1/               49               N/A                N/A                    21               N/A
CORE Small Cap Equity Fund/1/                0               N/A                N/A                     0               N/A
CORE International Equity Fund/1/            0               N/A                N/A                     0               N/A
Capital Growth Fund/1/                     683               N/A                N/A                     0               N/A
Mid Cap Equity Fund/1/                  74,315            51,464             26,082                     1               N/A
International Equity Fund                    0               N/A                N/A                     0               N/A
Small Cap Value Fund/1/                  2,674               N/A                N/A                     0               N/A
European Equity/1/                         N/A               N/A                N/A                   N/A               N/A
Japanese Equity Fund/1/                    N/A               N/A                N/A                   N/A               N/A
International Small Cap Fund/1/            N/A               N/A                N/A                   N/A               N/A
Emerging Markets Equity Fund/1/            617               N/A                N/A                     0               N/A
Asia Growth Fund                             0               N/A                N/A                     0               N/A
Real Estate Securities Fund/1/             N/A               N/A                N/A                   N/A               N/A
</TABLE>

- ---------------------------
 
1    The CORE Large Cap Value, CORE Large Cap Growth, CORE Small Cap Equity,
     CORE International Equity, European Equity, Japanese Equity, International
     Small Cap, Emerging Markets Equity and Real Estate Securities Funds
     commenced operations on December 15, 1998, May 1, 1997, August 15, 1997,
     August 15, 1997, October 1, 1998, May 1, 1998, May 1, 1998, December 15,
     1997 and July 27, 1998, respectively.

                                      B-59
<PAGE>
 
     The Trust's distribution and transfer agency agreements each provide that
Goldman Sachs may render similar services to others so long as the services
Goldman Sachs provides thereunder are not impaired thereby. Such agreements also
provide that the Trust will indemnify Goldman Sachs against certain liabilities.

EXPENSES
========

     Except as set forth in the Prospectus under "Management," the Trust is
responsible for the payment of its expenses. The expenses include, without
limitation, the fees payable to the Advisers, the fees and expenses payable to
the Trust's custodian and subcustodians, transfer agent fees, brokerage fees and
commissions, filing fees for the registration or qualification of the Trust's
shares under federal or state securities laws, expenses of the organization of
the Trust, fees and expenses incurred by the Trust in connection with membership
in investment company organizations, taxes, interest, costs of liability
insurance, fidelity bonds or indemnification, any costs, expenses or losses
arising out of any liability of, or claim for damages or other relief asserted
against, the Trust for violation of any law, legal and auditing fees and
expenses (including the cost of legal and certain accounting services rendered
by employees of GSAM, GSAMI and Goldman Sachs with respect to the Trust),
expenses of preparing and setting in type prospectuses, statements of additional
information, proxy material, reports and notices and the printing and
distributing of the same to the Trust's shareholders and regulatory authorities,
any expenses assumed by a Fund pursuant to its distribution and service plans,
compensation and expenses of its "non-interested" Trustees and extraordinary
expenses, if any, incurred by the Trust. Except for fees under any distribution
and service plans applicable to a particular class and transfer agency fees, all
Fund expenses are borne on a non-class specific basis.

     The Advisers voluntarily have agreed to reduce or limit certain "Other
Expenses" (excluding management, distribution and service fees, transfer agency
fees, taxes, interest and brokerage fees and litigation, indemnification and
other extraordinary expenses) for the following Funds to the extent such
expenses exceed the following percentage of average daily net assets:

<TABLE>
<CAPTION>
                                                  Other
                                                  Expenses
                                                  --------
<S>                                               <C>
Balanced Fund                                     0.01%
Growth and Income Fund                            0.05%
CORE Large Cap Value Fund                         0.00%
CORE U.S. Equity Fund                             0.00%
CORE Large Cap Growth Fund                        0.00%
CORE Small Cap Equity Fund                        0.04%
CORE International Equity Fund                    0.12%
Capital Growth Fund                               0.00%
Mid Cap Equity Fund                               0.10%
Small Cap Value Fund                              0.06%
International Equity Fund                         0.10%
European Equity Fund                              0.10%
Japanese Equity Fund                              0.01%
International Small Cap Fund                      0.16%
</TABLE> 

                                      B-60
<PAGE>
 
<TABLE> 
     <S>                                              <C>  
     Emerging Markets Equity Fund                     0.15%
     Asia Growth Fund                                 0.16%
     Real Estate Securities Fund                      0.00% 
</TABLE>


     Such reductions or limits, if any, are calculated monthly on a cumulative
basis and may be discontinued or modified by the applicable Adviser in its
discretion at any time.

     Fees and expenses of legal counsel, registering shares of a Fund, holding
meetings and communicating with shareholders may include an allocable portion of
the cost of maintaining an internal legal and compliance department. Each Fund
may also bear an allocable portion of the applicable Adviser's costs of
performing certain accounting services not being provided by a Fund's Custodian.

     For the last three fiscal years the amounts of certain "Other Expenses" of
each Fund then in existence that were reduced or otherwise limited were as
follows under the expense limitations that were then in effect:


<TABLE>
<CAPTION>
                                            1998          1997        1996
                                            ====          ====        ====
<S>                                       <C>          <C>         <C>
Balanced Fund                             $420,659     $319,552    $192,405
Growth and Income Fund                           0            0           0
CORE Large Cap Value Fund/1/                   N/A          N/A         N/A
CORE U.S. Equity Fund                       63,253      104,833     110,581
CORE Large Cap Growth Fund/1/              332,713          N/A         N/A
CORE Small Cap Equity Fund/1/              202,498          N/A         N/A
CORE International Equity Fund/1/          206,055          N/A         N/A
Capital Growth Fund                              0          N/A         N/A
Mid Cap Equity Fund                        264,378       72,441      85,515
International Equity Fund                        0      144,265         N/A
Small Cap Value Fund                             0          N/A         N/A
European Equity Fund/1/                        N/A          N/A         N/A
Japanese Equity Fund/1/                        N/A          N/A         N/A
International Small Cap Fund/1/                N/A          N/A         N/A
Emerging Markets Equity Fund/1/            112,725          N/A         N/A
Asia Growth Fund                           125,828       50,407           0
Real Estate Securities Fund/1/                  N/A         N/A         N/A
</TABLE>

________________

1    The CORE Large Cap Value, CORE Large Cap Growth, CORE Small Cap Equity,
     CORE International Equity, European Equity, Japanese Equity, International
     Small Cap, Emerging Markets Equity and Real Estate Securities Funds
     commenced operations on December 15, 1998, May 1, 1997, August 15, 1997,
     August 15, 1997, October 1, 1998, May 1, 1998, May 1, 1998, December 15,
     1997 and July 27, 1998, respectively.

                                      B-61
<PAGE>
 
CUSTODIAN AND SUB-CUSTODIANS
============================

     State Street, P.O. Box 1713, Boston, Massachusetts 02105, is the custodian
of the Trust's portfolio securities and cash. State Street also maintains the
Trust's accounting records. State Street may appoint domestic and foreign sub-
custodians from time to time to hold certain securities purchased by the Trust
and to hold cash for the Trust.

INDEPENDENT PUBLIC ACCOUNTANTS
==============================

     Arthur Andersen LLP, independent public accountants, 225 Franklin Street,
Boston, Massachusetts 02110, have been selected as auditors of the Trust. In
addition to audit services, Arthur Andersen LLP, prepares the Trust's federal
and state tax returns, and provides consultation and assistance on accounting,
internal control and related matters.


                     PORTFOLIO TRANSACTIONS AND BROKERAGE

     The Advisers are responsible for decisions to buy and sell securities for
the Funds, the selection of brokers and dealers to effect the transactions and
the negotiation of brokerage commissions, if any. Purchases and sales of
securities on a securities exchange are effected through brokers who charge a
commission for their services. Orders may be directed to any broker including,
to the extent and in the manner permitted by applicable law, Goldman Sachs.

     In the over-the-counter market, securities are generally traded on a "net"
basis with dealers acting as principal for their own accounts without a stated
commission, although the price of a security usually includes a profit to the
dealer. In underwritten offerings, securities are purchased at a fixed price
which includes an amount of compensation to the underwriter, generally referred
to as the underwriter's concession or discount. On occasion, certain money
market instruments may be purchased directly from an issuer, in which case no
commissions or discounts are paid.

     In placing orders for portfolio securities of a Fund, the Advisers are
generally required to give primary consideration to obtaining the most favorable
price and efficient execution under the circumstances. This means that an
Adviser will seek to execute each transaction at a price and commission, if any,
which provides the most favorable total cost or proceeds reasonably attainable
in the circumstances. As permitted by Section 28(e) of the Securities Exchange
Act of 1934, the Fund may pay a broker which provides brokerage and research
services to the Fund an amount of disclosed commission in excess of the
commission which another broker would have charged for effecting that
transaction. Such practice is subject to a good faith determination that such
commission is reasonable in light of the services provided and to such policies
as the Trustees may adopt from time to time. While the Advisers generally seek
reasonably competitive spreads or commissions, a Fund will not necessarily be
paying the lowest spread or commission available. Within the framework of this
policy, the Advisers will consider research and investment services provided by
brokers or dealers who effect or are parties to portfolio transactions of a
Fund, the Advisers and their affiliates, or their other clients. Such research
and investment services are those which brokerage houses customarily provide to
institutional investors and include research reports on particular industries
and companies, economic surveys and analyses, recommendations as to specific
securities and other products or services (e.g., quotation equipment and
computer related

                                      B-62
<PAGE>
 
costs and expenses), advice concerning the value of securities, the advisability
of investing in, purchasing or selling securities, the availability of
securities or the purchasers or sellers of securities, furnishing analyses and
reports concerning issuers, industries, securities, economic factors and trends,
portfolio strategy and performance of accounts, effecting securities
transactions and performing functions incidental thereto (such as clearance and
settlement) and providing lawful and appropriate assistance to the Advisers in
the performance of their decision-making responsibilities. Such services are
used by the Advisers in connection with all of their investment activities, and
some of such services obtained in connection with the execution of transactions
for a Fund may be used in managing other investment accounts. Conversely,
brokers furnishing such services may be selected for the execution of
transactions of such other accounts, whose aggregate assets are far larger than
those of a Fund, and the services furnished by such brokers may be used by the
Advisers in providing management services for the Trust.

     In circumstances where two or more broker-dealers offer comparable prices
and execution capability, preference may be given to a broker-dealer which has
sold shares of the Fund as well as shares of other investment companies or
accounts managed by the Advisers. This policy does not imply a commitment to
execute all portfolio transactions through all broker-dealers that sell shares
of the Fund.

     On occasions when an Adviser deems the purchase or sale of a security to be
in the best interest of a Fund as well as its other customers (including any
other fund or other investment company or advisory account for which such
Adviser acts as investment adviser or subadviser), the Adviser, to the extent
permitted by applicable laws and regulations, may aggregate the securities to be
sold or purchased for the Fund with those to be sold or purchased for such other
customers in order to obtain the best net price and most favorable execution
under the circumstances. In such event, allocation of the securities so
purchased or sold, as well as the expenses incurred in the transaction, will be
made by the applicable Adviser in the manner it considers to be equitable and
consistent with its fiduciary obligations to such Fund and such other customers.
In some instances, this procedure may adversely affect the price and size of the
position obtainable for a Fund.

     Commission rates in the U.S. are established pursuant to negotiations with
the broker based on the quality and quantity of execution services provided by
the broker in the light of generally prevailing rates. The allocation of orders
among brokers and the commission rates paid are reviewed periodically by the
Trustees.

     Subject to the above considerations, the Advisers may use Goldman Sachs as
a broker for a Fund. In order for Goldman Sachs to effect any portfolio
transactions for each Fund, the commissions, fees or other remuneration received
by Goldman Sachs must be reasonable and fair compared to the commissions, fees
or other remuneration paid to other brokers in connection with comparable
transactions involving similar securities being purchased or sold on a
securities exchange during a comparable period of time. This standard would
allow Goldman Sachs to receive no more than the remuneration which would be
expected to be received by an unaffiliated broker in a commensurate arm's-length
transaction. Furthermore, the Trustees, including a majority of the Trustees who
are not "interested" Trustees, have adopted procedures which are reasonably
designed to provide that any commissions, fees or other remuneration paid to
Goldman Sachs are consistent with the foregoing standard. Brokerage transactions
with Goldman Sachs are also subject to such fiduciary standards as may be
imposed upon Goldman Sachs by applicable law.

                                      B-63
<PAGE>
 
For the past three fiscal years, each Fund in existence paid brokerage
commissions as follows:


<TABLE>
<CAPTION>
                                                                  Total                   Total                Brokerage
                                                                 Brokerage               Amount of            Commissions
                                                Total           Commissions             Transaction             Paid
                                              Brokerage           Paid to                 on which            to Brokers
                                             Commissions        Affiliated              Commissions           Providing
                                                Paid              Persons                   Paid               Research
                                             ===========       ==============        ===================      ===========
<S>                                          <C>               <C>                   <C>                      <C>
Fiscal Year Ended                                                       
January 31, 1998:                                                       

Balanced Fund                                 $  111,054         $ 13,185(12%)1      $2,731,475,157(1%)2           N/A
Growth and Income Fund                         1,550,312          190,001(12%)1       9,046,102,538(3%)2           N/A
CORE Large Cap Value Fund/3/                         N/A                    N/A                      N/A           N/A
CORE U.S. Equity Fund                            944,895                0 (0%)1       1,996,000,522(0%)2           N/A
CORE Large Cap Growth Fund                        54,360              288 (1%)1         200,813,608(0%)2           N/A
CORE Small Cap Equity Fund                        59,517                0 (0%)1         159,674,227(0%)2           N/A
CORE International Equity Fund                    43,120                0 (0%)1         142,395,942(0%)2           N/A
Capital Growth Fund                              514,890           37,947 (7%)1       2,748,868,081(5%)2           N/A
Mid Cap Equity Fund                              480,808           76,398(15%)1       2,584,258,044(2%)2           N/A
International Equity Fund                        506,607                0 (0%)1       3,898,716,988(0%)2           N/A
Small Cap Value Fund                             646,533           82,143(13%)1       5,686,763,232(1%)2           N/A
European Equity Fund/3/                              N/A                    N/A                      N/A           N/A
Japanese Equity Fund/3/                              N/A                    N/A                      N/A           N/A
International Small Cap Fund/3/                      N/A                    N/A                      N/A           N/A
Emerging Markets Equity Fund                      59,999            6,230(10%)1         236,915,108(1%)2           N/A
Asia Growth Fund                                 814,656            2,885 (0%)1       2,160,632,195(1%)2           N/A
Real Estate Securities Fund/3/                       N/A                    N/A                      N/A           N/A
</TABLE>
___________________

1  Percentage of total commissions paid.
2  Percentage of total amount of transactions involving the payment of
   commissions effected through affiliated persons.
3  Not operational.

                                     B-64
<PAGE>
 
<TABLE>
<CAPTION>
                                                                    Total                  Total                Brokerage
                                                                   Brokerage             Amount of             Commissions
                                                 Total            Commissions           Transaction               Paid
                                               Brokerage            Paid to              on which               to Brokers
                                              Commissions         Affiliated           Commissions               Providing
                                                 Paid               Persons                Paid                  Research
                                              ===========     ==================     ===================       ===========
<S>                                           <C>             <C>                    <C>                       <C>
Fiscal Year Ended
January 31, 1997:
 

Balanced Fund                                  $   62,072      $      5,112 (8%)/1/   $   1,057,742(15%)/2/     $        0
Growth and Income Fund                            779,396            77,587(10%)/1/       13,310,208(9%)/2/              0
CORE Large Cap Value Fund/3/                          N/A                      N/A                     N/A             N/A
CORE U.S. Equity Fund                             279,620                  0(0%)/1/        6,706,824(0%)/2/              0
CORE Large Cap Growth Fund/3/                         N/A                      N/A                     N/A             N/A
CORE Small Cap Equity Fund/3/                         N/A                      N/A                     N/A             N/A
CORE International Equity Fund/3/                     N/A                      N/A                     N/A             N/A
Capital Growth Fund                             1,460,140           304,052(21%)/1/       29,920,578(1%)/2/         42,039
Mid Cap Equity Fund                               364,294             22,134(6%)/1/        6,655,100(7%)/2/              0
International Equity Fund                       1,529,436                     0(0%)       48,059,958(0%)/2/              0
European Equity Fund/3/                               N/A                      N/A                     N/A             N/A
Small Cap Value Fund                              758,205             36,087(5%)/1/       16,439,842(1%)/2/              0
Japanese Equity Fund/3/                               N/A                      N/A                     N/A             N/A
International Small Cap Fund/3/                       N/A                      N/A                     N/A             N/A
Emerging Markets Equity Fund/3/                       N/A                      N/A                     N/A             N/A
Asia Growth Fund                                1,554,313             50,624(3%)/1/      102,609,295(4%)/2/              0
Real Estate Securities Fund/3/                        N/A                      N/A                     N/A             N/A
</TABLE>
__________________

1  Percentage of total commissions paid.
2  Percentage of total amount of transactions involving the payment of
   commissions effected through affiliated persons.
3  Not operational.

                                     B-65
<PAGE>
 
<TABLE>
<CAPTION>
                                                                Total                Total            Brokerage
                                                              Brokerage            Amount of         Commissions
                                                 Total       Commissions          Transaction           Paid
                                               Brokerage       Paid to              on which         to Brokers
                                              Commissions     Affiliated          Commissions         Providing
                                                 Paid          Persons                Paid            Research
                                              ===========     ==========          ============       ===========
 
Fiscal Year Ended
January 31, 1996:
<S>                                           <C>          <C>               <C>                     <C>
Balanced Fund                                  $   56,860  $  7,391(13%)/1/  $   29,697,202(13%)/2/           $0
Growth and Income Fund                            841,605     71,218(8%)/1/      425,040,430(9%)/2/            0
CORE Large Cap Value Fund/3/                          N/A               N/A                     N/A          N/A
CORE U.S. Equity Fund                             121,424          0(0%)/1/      148,427,497(0%)/2/            0
CORE Large Cap Growth Fund/3/                         N/A               N/A                     N/A          N/A
CORE Small Cap Equity Fund/3/                         N/A               N/A                     N/A          N/A
CORE International Equity Fund/3/                     N/A               N/A                     N/A          N/A
Capital Growth Fund                             1,979,949   284,660(14%)/1/   1,034,755,196(11%)/2/            0
Mid Cap Equity Fund                               315,212    40,935(13%)/1/     142,547,552(11%)/2/            0
International Equity Fund                       1,260,992     13,629(1%)/1/      359,700,166(1%)/2/            0
Small Cap Value Fund                              690,234    72,980(11%)/1/      170,616,044(6%)/2/            0
European Equity Fund/3/                               N/A               N/A                     N/A          N/A
Japanese Equity Fund/3/                               N/A               N/A                     N/A          N/A
International Small Cap Fund/3/                       N/A               N/A                     N/A          N/A
Emerging Markets Equity Fund/3/                       N/A               N/A                     N/A          N/A
Asia Growth Fund                                1,676,525      3,778(0%)/1/      247,662,049(2%)/2/            0
Real Estate Securities Fund/3/                        N/A               N/A                     N/A          N/A
</TABLE>

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

1    Percentage of total commissions paid.
2    Percentage of total amount of transactions involving the payment of
     commissions effected through affiliated persons.
3    Not operational.

                                     B-66
<PAGE>
 
During the fiscal year ended January 31, 1998, the Trust acquired and sold
securities of its regular broker-dealers.  As of January 31, 1998, the Trust
held the following amounts of securities of its regular broker/dealers, as
defined in Rule 10b-1 under the Act, or their parents ($ in thousands):

<TABLE> 
<CAPTION> 
Fund                   Broker/Dealer         Amount
- ----                   -------------         ------
<S>                    <C>                   <C>     
Balanced Fund          Bear Stearns          $ 7,534
                       Lehman Brothers         5,954
                       Nomura Securities       5,901
                       Salomon Smith Barney    2,511
                       Morgan Stanley            425
 
Growth and Income      Morgan Stanley         51,948
  Fund                 Bear Stearns           32,164
                       Lehman Brothers        25,420
                       Nomura Securities      25,195
                       Salomon Smith Barney   10,721
 
Capital Growth Fund    State Street           13,026
                       Bear Stearns            9,494
                       Lehman Brothers         7,504
                       Nomura Securities       7,437
                       Salomon Smith Barney    3,165
 
Small Cap Value        Bear Stearns           12,074
 Fund                  Lehman Brothers         9,543
                       Nomura Securities       9,458
                       Salomon Smith Barney    4,025
 
International          State Street           24,412
Equity Fund
 
Asia Growth Fund       State Street            4,920
 
Mid Cap Equity Fund    Bear Stearns           10,870
                       Lehman Brothers         8,591
                       Nomura Securities       8,515
                       Salomon Smith Barney    3,623
 
Emerging Markets       State Street            5,727
 Equity Fund
</TABLE> 

                                      B-67
<PAGE>
 
<TABLE> 
<CAPTION> 
Fund                   Broker/Dealer         Amount
- ----                   -------------         ------ 
<S>                    <C>                   <C>     
CORE U.S. Equity       Morgan Stanley        $ 6,707
 Fund                  Lehman Brothers         4,434
                       Merrill Lynch           2,878
                       Bear Stearns            1,823
                       Nomura Securities       1,428
                       Salomon Smith Barney      608
 
CORE Large Cap         Merrill Lynch           1,578
 Growth Fund           Morgan Stanley          1,080
                       Lehman Brothers           929
                       Bear Stearns              722
                       Nomura Securities         566
                       Lehman Brothers           358
                       Salomon Smith Barney      241
 
CORE International     State Street            2,391
Fund
 
CORE Small Cap Fund    Bear Stearns              275
                       Lehman Brothers           217
                       Nomura Securities         216
                       Salomon Smith Barney       92
</TABLE> 

                                NET ASSET VALUE

     Under the Act, the Trustees are responsible for determining in good faith
the fair value of securities of each Fund.  In accordance with procedures
adopted by the Trustees, the net value per share of each class of each Fund is
calculated by determining the value of the net assets attributed to each class
of that Fund and dividing by the number of outstanding shares of that class.
All securities are valued as of the close of regular trading on the New York
Stock Exchange (normally, but not always, 4:00 p.m. New York time) on each
Business Day (as defined in the Prospectus).

     In the event that the New York Stock Exchange or the national securities
exchange on which stock options are traded adopt different trading hours on
either a permanent or temporary basis, the Trustees will reconsider the time at
which net asset value is computed.  In addition, each Fund may compute its net
asset value as of any time permitted pursuant to any exemption, order or
statement of the SEC or its staff.

     Portfolio securities of the Fund for which accurate market quotations are
available are valued as follows:  (a) securities listed on any U.S. or foreign
stock exchange or on the National Association of Securities Dealers Automated
Quotations System ("NASDAQ") will be valued at 

                                      B-68
<PAGE>
 
the last sale price on the exchange or system in which they are principally
traded, on the valuation date. If there is no sale on the valuation day,
securities traded will be valued at the mean between the closing bid and asked
prices, or if closing bid and asked prices are not available, at the exchange
defined close price on the exchange or system in which such securities are
principally traded. If the relevant exchange or system has not closed by the
above-mentioned time for determining the Funds net asset value, the securities
will be valued at the mean between the bid and asked prices at the time the net
asset value is determined; (b) over-the-counter securities not quoted on NASDAQ
will be valued at the last sale price on the valuation day or, if no sale
occurs, at the mean between the last bid and asked price; (c) equity securities
for which no prices are obtained under section (a) or (b) including those for
which a pricing service supplies no exchange quotation or a quotation that is
believed by the portfolio manager/trader to be inaccurate, will be valued at
their fair value in accordance with procedures approved by the Board of
Trustees; (d) fixed-income securities with a remaining maturity of 60 days or
more for which accurate market quotations are readily available will be valued
according to dealer-supplied bid quotations or bid quotations from a recognized
pricing service (e.g., Merrill Lynch, J.J. Kenny, Muller Data Corp., Bloomberg,
EJV, Reuters or Standard & Poor's); (e) fixed-income securities for which
accurate market quotations are not readily available are valued by the Advisers
based on valuation models that take into account spread and daily yield changes
on government securities in the appropriate market (i.e., matrix pricing); (f)
debt securities with a remaining maturity of 60 days or less are valued by the
Adviser at amortized cost, which the Trustees have determined to approximate
fair value; and (g) all other instruments, including those for which a pricing
service supplies no exchange quotation or a quotation that is believed by the
portfolio manager/trader to be inaccurate, will be valued at fair value in
accordance with the valuation procedures approved by the Board of Trustees.

     The value of all assets and liabilities expressed in foreign currencies
will be converted into U.S. dollar values at current exchange rates of such
currencies against U.S. dollars last quoted by any major bank.  If such
quotations are not available, the rate of exchange will be determined in good
faith by or under procedures established by the Board of Trustees.

     Generally, trading in securities on European and Far Eastern securities
exchanges and on over-the-counter markets is substantially completed at various
times prior to the close of business on each Business Day in New York (i.e., a
day on which the New York Stock Exchange is open for trading).  In addition,
European or Far Eastern securities trading generally or in a particular country
or countries may not take place on all Business Days in New York.  Furthermore,
trading takes place in various foreign markets on days which are not Business
Days in New York and days on which the Funds' net asset values are not
calculated.  Such calculation does not take place contemporaneously with the
determination of the prices of the majority of the portfolio securities used in
such calculation.  Events affecting the values of portfolio securities that
occur between the time their prices are determined and the close of regular
trading on the New York Stock Exchange will not be reflected in a Fund's
calculation of net asset values unless the Trust's Valuation Committee deem that
the particular event would materially affect net asset value, in which case an
adjustment may be made.

     The proceeds received by each Fund and each other series of the Trust from
the issue or sale of its shares, and all net investment income, realized and
unrealized gain and proceeds thereof, 

                                      B-69
<PAGE>
 
subject only to the rights of creditors, will be specifically allocated to such
Fund and constitute the underlying assets of that Fund or series. The underlying
assets of each Fund will be segregated on the books of account, and will be
charged with the liabilities in respect of such Fund and with a share of the
general liabilities of the Trust. Expenses of the Trust with respect to the
Funds and the other series of the Trust are generally allocated in proportion to
the net asset values of the respective Funds or series except where allocations
of direct expenses can otherwise be fairly made.

                            PERFORMANCE INFORMATION

     A Fund may from time to time quote or otherwise use total return, yield
and/or distribution rate information in advertisements, shareholder reports or
sales literature.  Average annual total return and yield are computed pursuant
to formulas specified by the SEC.

     Yield is computed by dividing net investment income earned during a recent
thirty-day period by the product of the average daily number of shares
outstanding and entitled to receive dividends during the period and the maximum
public offering price per share on the last day of the relevant period.  The
results are compounded on a bond equivalent (semi-annual) basis and then
annualized.  Net investment income per share is equal to the dividends and
interest earned during the period, reduced by accrued expenses for the period.
The calculation of net investment income for these purposes may differ from the
net investment income determined for accounting purposes.

     The distribution rate for a specified period is calculated by annualizing
distributions of net investment income for such period and dividing this amount
by the net asset value per share or maximum public offering price on the last
day of the period.

     Average annual total return for a specified period is derived by
calculating the actual dollar amount of the investment return on a $1,000
investment made at the maximum public offering price at the beginning of the
period, and then calculating the annual compounded rate of return which would
produce that amount, assuming a redemption at the end of the period.  This
calculation assumes a complete redemption of the investment.  It also assumes
that all dividends and distributions are reinvested at net asset value on the
reinvestment dates during the period.

     Year-by-year total return and cumulative total return for a specified
period are each derived by calculating the percentage  rate required to make a
$1,000 investment (made at the maximum public offering price with all
distributions reinvested) at the beginning of such period equal to the actual
total value of such investment at the end of such period.  The table set forth
below indicates the total return (capital changes plus reinvestment of all
distributions) on a hypothetical investment of $1,000 in a Fund for the periods
indicated.

     Occasionally, statistics may be used to specify Fund volatility or risk.
Measures of volatility or risk are generally used to compare a Fund's net asset
value or performance relative to a market index.  One measure of volatility is
beta.  Beta is the volatility of a fund relative to the total market.  A beta of
more than 1.00 indicates volatility greater than the market, and a beta of less
than 1.00 indicates volatility less than the market.  Another measure of
volatility or risk is standard deviation.  Standard deviation is used to measure
variability of net asset value or total return around 

                                      B-70
<PAGE>
 
an average, over a specified period of time. The premise is that greater
volatility connotes greater risk undertaken in achieving performance.

     From time to time the Trust may publish an indication of a Fund's past
performance as measured by independent sources such as (but not limited to)
Lipper Analytical Services, Inc., Morningstar Mutual Funds, Weisenberger
Investment Companies Service, Donoghue's Money Fund Report, Micropal, Barron's,
Business Week, Consumer's Digest, Consumer's Report, Investors Business Daily,
The New York Times, Kiplinger's Personal Finance Magazine, Changing Times,
Financial World, Forbes, Fortune, Money, Personal Investor, Sylvia Porter's
Personal Finance and The Wall Street Journal.  The Trust may also advertise
information which has been provided to the NASD for publication in regional and
local newspapers.  In addition, the Trust may from time to time advertise a
Fund's performance relative to certain indices and benchmark investments,
including:  (a) the Lipper Analytical Services, Inc. Mutual Fund Performance
Analysis, Fixed-income Analysis and Mutual Fund Indices (which measure total
return and average current yield for the mutual fund industry and rank mutual
fund performance); (b) the CDA Mutual Fund Report published by CDA Investment
Technologies, Inc. (which analyzes price, risk and various measures of return
for the mutual fund industry); (c) the Consumer Price Index published by the
U.S. Bureau of Labor Statistics (which measures changes in the price of goods
and services); (d) Stocks, Bonds, Bills and Inflation published by Ibbotson
Associates (which provides historical performance figures for stocks, government
securities and inflation); (e) the Salomon Brothers' World Bond Index (which
measures the total return in U.S. dollar terms of government bonds, Eurobonds
and foreign bonds of ten countries, with all such bonds having a minimum
maturity of five years); (f) the Lehman Brothers Aggregate Bond Index or its
component indices; (g) the Standard & Poor's Bond Indices (which measure yield
and price of corporate, municipal and U.S.  Government bonds); (h) the J.P.
Morgan Global Government Bond Index; (i) other taxable investments including
certificates of deposit (CDs), money market deposit  accounts (MMDAs), checking
accounts, savings accounts, money market mutual funds and repurchase agreements;
(j) Donoghues' Money Fund Report (which provides industry averages for 7-day
annualized and compounded yields of taxable, tax-free and U.S. Government money
funds);  (k) the Hambrecht & Quist Growth Stock Index; (l) the NASDAQ OTC
Composite Prime Return; (m) the Russell Midcap Index; (n) the Russell 2000 Index
- - Total Return; (o) the Russell 1000 Value Index; (p) the Russell 1000 Growth
Index-Total Return; (q) the Value-Line Composite-Price Return; (r) the Wilshire
4500 Index; (s) the FT-Actuaries Europe and Pacific Index; (t) historical
investment data supplied by the research departments of Goldman Sachs, Lehman
Brothers, First Boston Corporation, Morgan Stanley including the EAFE Indices,
and the Morgan Stanley Capital International Combined Asia ex Japan Free Index,
the Morgan Stanley Capital International Emerging Markets Free Index, Salomon
Brothers, Merrill Lynch, Donaldson Lufkin and Jenrette or other providers of
such data; (u) the FT-Actuaries Europe and Pacific Index; (v) CDA/Wiesenberger
Investment Companies Services or Wiesenberger Investment Companies Service; (w)
The Goldman Sachs Commodities Index; (x) information produced by Micropal, Inc.;
and (y) The Toykyo Price Index.  The composition of the investments in such
indices and the characteristics of such benchmark investments are not identical
to, and in some cases are very different from, those of the Fund's portfolio.
These indices and averages are generally unmanaged and the items included in the
calculations of such indices and averages may not be identical to the formulas
used by a Fund to calculate its performance figures.

                                      B-71
<PAGE>
 
     Information used in advertisements and materials furnished to present and
prospective investors may include statements or illustrations relating to the
appropriateness of certain types of securities and/or mutual funds to meet
specific financial goals.  Such information may address:

     .         cost associated with aging parents;

     .         funding a college education (including its actual and estimated
               cost);

     .         health care expenses (including actual and projected expenses);

     .         long-term disabilities (including the availability of, and
               coverage provided by, disability insurance);

     .         retirement (including the availability of social security
               benefits, the tax treatment of such benefits and statistics and
               other information relating to maintaining a particular standard
               of living and outliving existing assets);

     .         asset allocation strategies and the benefits of diversifying
               among asset classes;

     .         the benefits of international and emerging market investments;

     .         the effects of inflation on investing and saving;

     .         the benefits of establishing and maintaining a regular pattern of
               investing and the benefits of dollar-cost averaging; and

     .         measures of portfolio risk, including but not limited to, alpha,
               beta and standard deviation.

The Trust may from time to time use comparisons, graphs or charts in
advertisements to depict the following types of information:

     .         the performance of various types of securities (common stocks,
               small company stocks, long-term government bonds, treasury bills
               and certificates of deposit) over time. However, the
               characteristics of these securities are not identical to, and may
               be very different from, those of a Fund's portfolio;

     .         the dollar and non-dollar based returns of various market indices
               (i.e., Morgan Stanley Capital International EAFE Index, FT-
               Actuaries Europe & Pacific Index and the Standard & Poor's Index
               of 500 Common Stocks) over varying periods of time;

                                      B-72
<PAGE>
 
     .         total stock market capitalizations of specific countries and
               regions on a global basis;

     .         performance of securities markets of specific countries and
               regions; and

     .         value of a dollar amount invested in a particular market or type
               of security over different periods of time.

     In addition, the Trust may from time to time include rankings of Goldman,
Sachs & Co.'s research department by publications such as the Institutional
Investor and the Wall Street Journal in advertisements.

     The CORE Large Cap Growth Fund was organized on May 1, 1997 and has no
operating or performance history prior thereto. However, in accordance with
interpretive positions expressed by the staff of the SEC, the Fund has adopted
the adjusted performance record of a separate account managed by the Advisers
for periods prior to the Funds' commencement of operations which converted into
Class A Shares as of the commencement date. Any quotation of performance data of
this Fund relating to this period will include the adjusted performance record
of the applicable separate account. The performance record of the separate
account quoted by the Fund have been adjusted downward based on the expenses
applicable to Class A Shares (the class into which the separate account
transferred) to reflect the expenses expected to be incurred by the Fund as
stated in the expense table in the Prospectus. These expenses include any sales
charges and asset-based charges (i.e., fees under Distribution and Service
Plans) imposed and other operating expenses. Total return quotations will be
calculated pursuant to SEC approved methodology. Prior to May 1, 1997, the
separate account was a separate investment advisory account under discretionary
management by the Adviser and had substantially similar investment objectives,
policies and strategies as the Fund. Unlike the Fund, the separate account was
not registered as an investment company under the Act and therefore was not
subject to certain investment restrictions and operational requirements that are
imposed on investment companies by the Act. If the separate account had been
registered as an investment company under the Act, the separate account's
performance may have been adversely affected by such restrictions and
requirements. On May 1, 1997, the separate account transferred a portion of its
assets to the Fund in exchange for Fund shares. The performance record of each
other class has been linked to the performance of the separate account (based on
Class A expenses) and the Class A performance for any periods prior to
commencement of operations of a class of shares.

     The Service Shares of the Balanced, Capital Growth, Small Cap Value, Growth
and Income, CORE U.S. Equity, CORE Large Cap Growth and International Equity
Funds commenced operations on August 15, 1997, August 15, 1997, August 15, 1997,
March 16, 1996, June 7, 1996, May 1, 1997 and March 6, 1996, respectively. The
Service Shares of these Funds had no operating or performance history prior
thereto. However, in accordance with interpretive positions expressed by the
staff of the SEC, each of these Funds has adopted the performance records of its
respective Class A Shares from that class' inception date (October 12, 1994,
April 20, 1990, October 22, 1992, 

                                      B-73
<PAGE>
 
February 5, 1993, May 24, 1991, May 1, 1997 and December 1, 1992 respectively)
to the inception dates of Service Shares stated above. Quotations of performance
data of these Funds relating to this period include the adjusted performance
record of the applicable Class A Shares (excluding the impact of any applicable
front-end sales charge). The performance records of the applicable Class A
Shares reflect the expenses incurred by the Fund. These expenses include asset-
based charges (i.e., fees under Distribution and Service Plans) imposed and
other operating expenses. Total return quotations are calculated pursuant to 
SEC-approved methodology.

                                      B-74
<PAGE>
 
                                 INTRODUCTION
                          VALUE OF $1,000 INVESTMENT
                         (AVERAGE ANNUAL TOTAL RETURN)


<TABLE>
<CAPTION>
                                                                                                            Assuming no voluntary
                                                                                                            waiver of fees and no
                                                                                                            expense reimbursements
                                                                                                           -----------------------
 
                                                                                  Assumes                   Assumes    
                                                                                  Maximum                   maximum  
                                                                                 Applicable    Assumes     Applicable      Assumes
                                                                                  Sales        no sales      sales        no sales
Fund                      Class            Time Period                           Charge**      Charge       Charge**       Charge
- ----                      -----            ------------                          --------      ------       ---------      ------  
<S>                       <C>              <C>                                   <C>          <C>          <C>            <C>
Balanced Fund             A                10/12/94-7/31/98 - Since inception       15.12%      16.84%       13.73%         15.44%
Balanced Fund             A                8/1/97-7/31/98 - One year                -3.42        2.18        -3.91           1.67 
Balanced Fund             B                5/1/96-7/31/97 - Since inception         13.14       14.48        12.89          14.23 
Balanced Fund             B                8/1/97-7/31/98 - One year                -3.63        1.44        -3.87           1.20 
Balanced Fund             C                8/15/97-7/31/98 - Since inception*        1.39        2.41         1.15           2.17 
Balanced Fund             Institutional    8/15/97-7/31/98 - Since inception*        N/A         3.39         N/A            3.05 
Balanced Fund             Service          10/12/94-7/31/98 - Since inception        N/A        16.78         N/A           15.43 
Balanced Funds            Service          8/1/97-7/31/98 - One Year                 N/A         1.97         N/A            1.62 
                                                                                                                                  
Growth and Income         A                2/5/93-7/31/98 - Since inception         16.48       17.69        15.87          17.07 
Growth and Income         A                8/1/97-7/31/98 - One year                -6.80       -1.36        -6.95          -1.52 
Growth and Income         B                5/1/96-7/31/98 - Since inception         17.63       18.94        17.64          18.95 
Growth and Income         B                8/1/97-7/31/98 - One year                -6.92       -2.02        -6.93          -2.03 
Growth and Income         C                8/15/97-7/31/98 - Since inception*       -2.12       -1.13        -2.14          -1.15 
Growth and Income         Institutional    6/3/96-7/31/98 - Since inception          N/A        20.05         N/A           20.03 
Growth and Income         Institutional    8/1/97-7/31/98 - One year                 N/A        -0.93         N/A           -0.93 
Growth and Income         Service          2/5/93-7/31/98 - Since inception          N/A        17.66         N/A           17.13 
Growth and Income         Service          8/1/97-7/31/98 - One year                 N/A        -1.41         N/A           -1.41 
                                                                                                                                  
CORE U.S. Equity          A                5/24/91-7/31/98 - Since inception        16.11       17.02        15.86          16.77 
CORE U.S. Equity          A                8/1/93-7/31/98 - Five year               20.93       22.30        20.68          22.05 
CORE U.S. Equity          A                8/1/97-7/31/98 - One year                 9.96       16.37         9.75          16.15 
CORE U.S. Equity          B                5/1/96-7/31/98 - Since inception         24.49       25.64        24.44          25.59 
CORE U.S. Equity          B                8/1/97-7/31/98 - One year                10.34%      15.81%       10.14%         15.61%
CORE U.S. Equity          C                8/15/97-7/31/98 - Since inception*       17.82       18.92        17.62          18.72 
CORE U.S. Equity          Institutional    6/15/95-7/31/98 - Since inception         N/A        27.66         N/A           27.39 
CORE U.S. Equity          Institutional    8/1/97-7/31/98 - One year                 N/A        17.08         N/A           16.88 
CORE U.S. Equity          Service          5/24/91-7/31/98 - Since inception         N/A        17.07         N/A           16.80 
CORE U.S. Equity          Service          8/1/93-7/31/98 - Five year                N/A        22.37         N/A           22.10 
CORE U.S. Equity          Service          8/1/97-7/31/98 - One year                 N/A        16.49         N/A           16.29 
                                                                                                                                  
CORE Large Cap Growth     A                11/11/91-7/31/98 - Since inception       20.96       22.01        20.70          21.75 
CORE Large Cap Growth     A                8/1/93-7/31/98 - Five year               26.39       27.80        26.03          27.43  
</TABLE> 

                                      B-75
<PAGE>
 
                                 INTRODUCTION
                          VALUE OF $1,000 INVESTMENT
                         (AVERAGE ANNUAL TOTAL RETURN)
 
<TABLE>
<CAPTION>
                                                                                                              Assuming no voluntary
                                                                                                              waiver of fees and no
                                                                                                              expense reimbursements
                                                                                                              ----------------------

 
                                                                                    Assumes                   Assumes           
                                                                                    Maximum                   maximum
                                                                                    Applicable    Assumes     Applicable    Assumes
                                                                                    Sales         no sales    sales         no sales
Fund                         Class            Time Period                           Charge**      Charge      Charge**      Charge
- ----                         -----            -----------                           --------      ------      --------      ------
<S>                          <C>              <C>                                   <C>           <C>         <C>           <C>
CORE Large Cap Growth        A                8/1/97-7/31/98 - One year                  14.04       20.73       12.80      19.42
CORE Large Cap Growth        B                5/1/97-7/31/98 - Since inception*          30.14       33.22       28.95      32.03
CORE Large Cap Growth        C                8/15/97-7/31/98 - Since inception*         20.27       21.30       19.31      20.34
CORE Large Cap Growth        Institutional    11/11/91-7/31/98 - Since inception           N/A       22.05         N/A      21.84
CORE Large Cap Growth        Institutional    8/1/93-7/31/98 - Five year                   N/A       27.85         N/A      27.55
CORE Large Cap Growth        Institutional    8/1/97-7/31/98 - One year                    N/A       20.99         N/A      19.95
CORE Large Cap Growth        Service          11/11/91-7/31/98 - Since inception           N/A       21.95         N/A      21.75
CORE Large Cap Growth        Service          8/1/93-7/31/98 - Five year                   N/A       27.72         N/A      27.43
CORE Large Cap Growth        Service          8/1/97-7/31/98 One year                      N/A       20.46         N/A      19.45
                                                                                                                         
CORE Small Cap Equity        A                8/15/97-7/31/98 - Since inception*          1.58        7.47       -0.11       5.69
CORE Small Cap Equity        B                8/15/97-7/31/98 - Since inception*          1.75        6.77        0.20       5.22
CORE Small Cap Equity        C                8/15/97-7/31/98 - Since inception*          5.87        6.87        4.33       5.33
CORE Small Cap Equity        Institutional    8/15/97-7/31/98 - Since inception*           N/A        7.77         N/A       6.21
CORE Small Cap Equity        Service          8/15/97-7/31/98 - Since inception*           N/A        7.47         N/A       5.81
                                                                                                                         
CORE International Equity    A                8/15/97-7/31/98 - Since inception*         -4.21        1.34       -5.97      -0.51
CORE International Equity    B                8/15/97-7/31/98 - Since inception*         -4.10        0.90       -5.84      -0.84
CORE International Equity    C                8/15/97-7/31/98 - Since inception*          0.00        1.00       -1.74      -0.74
CORE International Equity    Institutional    8/15/97-7/31/98 - Since inception*           N/A        1.86         N/A       0.11
CORE International Equity    Service          8/15/97-7/31/98 - Since inception*           N/A        1.50         N/A      -0.35
                                                                                                                         
Capital Growth               A                4/20/90-7/31/98 - Since inception          18.52       19.33       18.21      19.02
Capital Growth               A                8/1/93-7/31/98 - Five year                 20.20%      21.57%      19.95%     21.31%
Capital Growth               A                8/1/97-7/31/98 - One year                  17.27       24.09       16.99      23.80
Capital Growth               B                5/1/96-7/31/98 - Since inception           28.75       30.02       28.93      30.20
Capital Growth               B                8/1/97-7/31/98 - One year                  17.39       23.26       17.39      23.26
Capital Growth               C                8/15/97-7/31/98 - Since inception*         26.63       27.80       26.62      27.79
Capital Growth               Institutional    8/15/97-7/31/98 - Since inception*           N/A       29.04         N/A      29.01
Capital Growth               Service          4/20/90-7/31/98 - Since inception            N/A       19.31         N/A      19.03
Capital Growth               Service          8/1/93-7/31/98 - Five year                   N/A       21.54         N/A      21.32
Capital Growth               Service          8/1/97-7/31/98 - One year                    N/A       23.96         N/A      23.79
</TABLE> 

                                      B-76
<PAGE>
 
                                 INTRODUCTION 
                          VALUE OF $1,000 INVESTMENT
                         (AVERAGE ANNUAL TOTAL RETURN)


<TABLE>
<CAPTION>
                                                                                                           Assuming no voluntary
                                                                                                           waiver of fees and no
                                                                                                           expense reimbursements
                                                                                                           ----------------------
 
                                                                                 Assumes                  Assumes         
                                                                                 Maximum                  maximum
                                                                                 Applicable    Assumes    Applicable     Assumes 
                                                                                 Sales         no sales   sales          no sales
Fund                       Class           Time Period                           Charge**      Charge     Charge**       Charge   
- ----                      -------         ------------                           --------      ------     --------       ------    
<S>                      <C>              <C>                                    <C>           <C>        <C>            <C>
Mid Cap Equity           A                8/15/97-7/31/98 - Since inception*         -5.73       -0.22      -5.83           -0.33
Mid Cap Equity           B                8/15/97-7/31/98 - Since inception*         -5.62       -0.66      -5.72           -0.76
Mid Cap Equity           C                8/15/97-7/31/98 - Since inception*         -1.60       -0.60      -1.71           -0.71
Mid Cap Equity           Institutional    8/1/95-7/31/98 - Since inception             N/A       19.34        N/A           19.23
Mid Cap Equity           Institutional    8/1/97-7/31/98 - One year                    N/A        0.16        N/A            0.03
Mid Cap Equity           Service          7/18/97-7/31/98 - Since inception*           N/A        2.52        N/A            2.38
Mid Cap Equity           Service          8/1/97-7/31/98 - One year                    N/A       -0.25        N/A           -0.39
                                                                                                                                
International Equity     A                12/1/92-7/31/98 - Since inception          11.88       13.00      11.69           12.81
International Equity     A                8/1/93-7/31/98 - Five year                 11.52       12.79      11.37           12.63
International Equity     A                8/1/97-7/31/98 - One year                   0.58        6.44       0.44            6.30
International Equity     B                5/1/96-7/31/98 - Since inception           11.55       12.80      11.61           12.86
International Equity     B                8/1/97-7/31/98 - One year                   0.59        5.88       0.48            5.77
International Equity     C                8/15/97-7/31/98 - Since inception*          7.52        8.60       7.40            8.48
International Equity     Institutional    2/7/96-7/31/98 - Since inception             N/A       16.49        N/A           16.39
International Equity     Institutional    8/1/97-7/31/98 - One year                    N/A        7.11        N/A            6.99
International Equity     Service          12/1/92-7/31/98 - Since inception            N/A       13.06        N/A           12.88
International Equity     Service          8/1/93-7/31/98 - Five year                   N/A       12.86        N/A           12.72
International Equity     Service          8/1/97-7/31/98 - One year                    N/A        6.59        N/A            6.49
                                                                                                              
Small Cap Value          A                10/22/92-7/31/98 - Since inception         13.16       14.27      12.89           14.00 
Small Cap Value          A                8/1/93-7/31/98 - Five year                  8.89       10.13       8.68            9.91 
Small Cap Value          A                8/1/97-7/31/98 - One year                   0.55        6.40       0.31            6.14 
Small Cap Value          B                5/1/96-7/31/98 - Since inception           11.20%      12.54%     11.22%          12.56%
Small Cap Value          B                8/1/97-7/31/98 - One year                   0.31        5.59       0.31            5.59 
Small Cap Value          C                8/15/97-7/31/98 - Since inception*          3.26        4.30       3.26            4.30 
Small Cap Value          Institutional    8/15/97-7/31/98 - Since inception*           N/A        5.42        N/A            5.41
Small Cap Value          Service          10/22/92-7/31/98 - Since inception           N/A       14.27        N/A           14.06
Small Cap Value          Service          8/1/93-7/31/98 - Five year                   N/A       10.13        N/A            9.98
Small Cap Value          Service          8/1/97-7/31/98 - One year                    N/A        6.40        N/A            6.38
                                                                                                                          
Japanese Equity Fund     A                5/1/98-7/31/98 - Since inception           -4.63        0.90      -5.37            0.13
Japanese Equity Fund     B                5/1/98-7/31/98 - Since inception           -4.20        0.80      -4.96            0.04
</TABLE> 

                                     B-77
<PAGE>
 
                                 INTRODUCTION
                          VALUE OF $1,000 INVESTMENT
                         (AVERAGE ANNUAL TOTAL RETURN)


<TABLE> 
<CAPTION> 
                                                                                                            Assuming no voluntary
                                                                                                            waiver of fees and no
                                                                                                            expense reimbursements
                                                                                                            ----------------------
                                                                                     Assumes                Assumes
                                                                                     Maximum                maximum   
                                                                                     Applicable   Assumes   Applicable   Assumes 
                                                                                     Sales        no sales  Sales        no sales
Fund                            Class           Time Period                          Charge/**/   Charge    Charge/**/   Charge  
- ----                            -----           -----------                          ----------   --------  ----------   --------
<S>                             <C>             <C>                                  <C>          <C>       <C>          <C>        
Japanese Equity Fund            C               5/1/98-7/31/98 - Since inception       -0.20        0.80       -0.96       0.04     
Japanese Equity Fund            Institutional   5/1/98-7/31/98 - Since inception         N/A        1.00         N/A       0.23     
Japanese Equity Fund            Service         5/1/98-7/31/98 - Since inception         N/A        0.90         N/A       0.10     

International Small Cap Fund    A               5/1/98-7/31/98 - Since inception        0.38        6.20       -0.54       5.25     
International Small Cap Fund    B               5/1/98-7/31/98 - Since inception        1.20        6.20        0.24       5.24     
International Small Cap Fund    C               5/1/98-7/31/98 - Since inception        5.20        6.20        4.25       5.25     
International Small Cap Fund    Institutional   5/1/98-7/31/98 - Since inception         N/A        6.30         N/A       5.34     
International Small Cap Fund    Service         5/1/98-7/31/98 - Since inception         N/A        6.20         N/A       5.24     

Asia Growth                     A               7/8/94-7/31/98 - Since inception      -16.49      -15.32      -16.69     -15.53     
Asia Growth                     A               8/1/97-7/31/98 - One year             -59.91      -57.58      -60.06     -57.74     
Asia Growth                     B               5/1/96-7/31/98 - Since inception      -34.26      -33.36      -34.29     -33.39     
Asia Growth                     B               8/1/97-7/31/98 - One year             -59.87      -57.76      -60.01     -57.90     
Asia Growth                     C               8/15/97-7/31/98 - Since inception*    -56.47      -56.03      -56.61     -56.17     
Asia Growth                     Institutional   2/2/96-7/31/98 - Since inception         N/A      -28.74         N/A     -28.88     
Asia Growth                     Institutional   8/1/97-7/31/98 - One year                N/A      -57.28         N/A     -57.42     

Emerging Markets Equity         A               12/15/97-7/31/98 - Since inception*   -16.92      -12.10      -17.63     -12.81     
Emerging Markets Equity         B               12/15/97-7/31/98 - Since inception*   -16.59      -12.20      -17.29     -12.90     
Emerging Markets Equity         C               12/15/97-7/31/98 - Since inception*   -12.98      -12.10      -13.69     -12.81     
Emerging Markets Equity         Institutional   12/15/97-7/31/98 - Since inception*      N/A      -11.60         N/A     -12.29     
Emerging Markets Equity         Service         12/15/97-7/31/98 - Since inception*      N/A      -13.80         N/A     -13.87
</TABLE>

__________________________
All returns are average annual total returns.

*  Represents an aggregate total return (not annualized) since this class has
not completed a full twelve months of operations.

** Total return reflects a maximum initial sales charge of 5.5% for Class A
Shares, the assumed deferred sales charge for Class B Shares (5% maximum
declining to 0% after six years) and the assumed deferred sales charge for Class
C Shares (1% if redeemed within 12 months of purchase).

                                     B-78
<PAGE>
 
     From time to time, advertisements or information may include a discussion
of certain attributes or benefits to be derived by an investment in the Fund.
Such advertisements or information may include symbols, headlines or other
material which highlight or summarize the information discussed in more detail
in the communication.

     The Trust may from time to time summarize the substance of discussions
contained in shareholder reports in advertisements and publish the adviser's
views as to markets, the rationale for a Fund's investments and discussions of a
Fund's current asset allocation.

     In addition, from time to time, advertisements or information may include a
discussion of asset allocation models developed by GSAM and/or its affiliates,
certain attributes or benefits to be derived from asset allocation strategies
and the Goldman Sachs mutual funds that may be offered as investment options for
the strategic asset allocations. Such advertisements and information may also
include GSAM's current economic outlook and domestic and international market
views to suggest periodic tactical modifications to current asset allocation
strategies. Such advertisements and information may include other materials
which highlight or summarize the services provided in support of an asset
allocation program.

     A Fund's performance data will be based on historical results and will not
be intended to indicate future performance. A Fund's total return and yield will
vary based on market conditions, portfolio expenses, portfolio investments and
other factors. The value of a Fund's shares will fluctuate and an investor's
shares may be worth more or less than their original cost upon redemption. The
Trust may also, at its discretion, from time to time make a list of a Fund's
holdings available to investors upon request.

     Total return will be calculated separately for each class of shares in
existence. Because each class of shares may be subject to different expenses,
total return with respect to each class of shares of a Fund will differ.

                              SHARES OF THE TRUST

     The Funds, except the CORE International Equity, CORE Small Cap Equity,
CORE Large Cap Value, CORE Large Cap Growth, European Equity, Japanese Equity,
International Small Cap, Emerging Markets Equity and Real Estate Securities
Funds were reorganized from series of a Maryland corporation as part of Goldman
Sachs Trust, a Delaware business trust, by a Declaration of Trust dated January
28, 1997, on April 30, 1997.

     The Act requires that where more than one class or series of shares exists,
each class or series must be preferred over all other classes or series in
respect of assets specifically allocated to such class or series. The Trustees
also have authority to classify and reclassify any series of shares into one or
more classes of shares. As of the date of this Additional Statement, the
Trustees have classified the shares of the Funds into five classes:
Institutional Shares, Service Shares, Class A Shares, Class B Shares and Class C
Shares.

                                     B-79
<PAGE>
 
     Each Institutional Share, Service Share, Class A Share, Class B Share and
Class C Share of a Fund represents a proportionate interest in the assets
belonging to the applicable class of the Fund. All expenses of a Fund are borne
at the same rate by each class of shares, except that fees under Service Plans
are borne exclusively by Service Shares, fees under Distribution and Service
Plans are borne exclusively by Class A, Class B or Class C Shares and transfer
agency fees may be borne at different rates by different share classes. The
Trustees may determine in the future that it is appropriate to allocate other
expenses differently between classes of shares and may do so to the extent
consistent with the rules of the SEC and positions of the Internal Revenue
Service. Each class of shares may have different minimum investment requirements
and be entitled to different shareholder services. With limited exceptions,
shares of a class may only be exchanged for shares of the same or an equivalent
class of another fund. See "Exchange Privilege" in the Prospectus.

     Institutional Shares may be purchased at net asset value without a sales
charge for accounts in the name of an investor or institution that is not
compensated by a Fund under a Plan for services provided to the institution's
customers.

     Service Shares may be purchased at net asset value without a sales charge
for accounts held in the name of an institution that, directly or indirectly,
provides certain account administration and shareholder liaison services to its
customers, including maintenance of account records and processing orders to
purchase, redeem and exchange Service Shares. Service Shares bear the cost of
account administration fees at the annual rate of up to 0.50% of the average
daily net assets of the Fund attributable to Service Shares.

     Class A Shares are sold, with an initial sales charge of up to 5.5%,
through brokers and dealers who are members of the National Association of
Securities Dealers, Inc. and certain other financial service firms that have
sales agreements with Goldman Sachs. Class A Shares bear the cost of
distribution and service fees at the aggregate rate of up to 0.25% of the
average daily net assets of such Class A Shares (.50% with respect to the CORE
International Equity, International Equity, European Equity, Japanese Equity,
International Small Cap, Emerging Markets, Asia Growth, Global Income and Real
Estate Securities Funds). With respect to Class A Shares, the Distributor at its
discretion may use compensation for distribution services paid under the
Distribution and Services Plan for personal and account maintenance services and
expenses so long as such total compensation under the Plan does not exceed the
maximum cap on "service fees" imposed by the NASD.

     Class B Shares of the Funds are sold subject to a contingent deferred sales
charge of up to 5.0% through brokers and dealers who are members of the National
Association of Securities Dealers Inc. and certain other financial services
firms that have sales arrangements with Goldman Sachs. Class B Shares bear the
cost of distribution (Rule 12b-1) fees at the aggregate rate of up to 0.75% of
the average daily net assets attributable to Class B Shares. Class B Shares also
bear the cost of service fees at an annual rate of up to 0.25% of the average
daily net assets attributable to Class B Shares.

     Class C Shares of the Funds are sold subject to a contingent deferred sales
charge of up to 1.0% through brokers and dealers who are members of the National
Association of Securities Dealers Inc. and certain other financial services
firms that have sales arrangements with Goldman Sachs. Class C Shares bear the
cost of distribution (Rule 12b-1) fees at the aggregate rate of up to 0.75% of
the average 

                                     B-80
<PAGE>
 
daily net assets attributable to Class C Shares. Class C Shares also bear the
cost of service fees at an annual rate of up to 0.25% of the average daily net
assets attributable to Class C Shares.

     It is possible that an institution or its affiliate may offer different
classes of shares (i.e., Institutional, Service, Class A Shares, Class B Shares
and Class C Shares) to its customers and thus receive different compensation
with respect to different classes of shares of each Fund. Dividends paid by each
Fund, if any, with respect to each class of shares will be calculated in the
same manner, at the same time on the same day and will be the same amount,
except for differences caused by the differences in expenses discussed above.
Similarly, the net asset value per share may differ depending upon the class of
shares purchased.

     Certain aspects of the shares may be altered after advance notice to
shareholders if it is deemed necessary in order to satisfy certain tax
regulatory requirements.

     When issued, shares are fully paid and non-assessable. In the event of
liquidation, shareholders are entitled to share pro rata in the net assets of
the applicable class of the relevant Fund available for distribution to such
shareholders. All shares are freely transferable and have no preemptive,
subscription or conversion rights.

     As of December 8, 1998, State Street Bank & Trust Company as Trustee (GS
Profit Sharing Master Trust), P.O. Box 1992, Boston, MA 02105, was recordholder
of 13% of CORE U.S. Equity Fund's Institutional shares outstanding; Goldman
Sachs CORE Large Cap Fund, Omnibus A/C - Growth Strategy, 4900 Sears Tower,
Chicago, IL 60606, was recordholder of 11%, Goldman Sachs CORE Large Cap Growth
Fund, Omnibus A/C - Growth Fund, 4900 Sears Tower, Chicago, IL 60606, was
recordholder of 12%, and Fleet National Bank as custodian for The Hotchkiss
School, Goldman Sachs, Attn: 0006295110, P.O. Box 92800, Rochester, NY 14692,
was recordholder of 7% of CORE Large Cap Growth Fund's Institutional shares
outstanding; State Street Bank & Trust Company as Trustee (GS Profit Sharing
Master Trust), P.O. Box 1992, Boston, MA 02105, was recordholder of 52% of Mid
Cap Equity Fund's Institutional shares outstanding; Resources Trust Co., FBO
Various Accounts, 8051 E. Maplewood Ave., Englewood, CO 80111, was recordholder
of 17% of CORE International Equity Fund's Class A shares outstanding; Goldman
Sachs International Equity Fund, Omnibus A/C Income Strategy, 4900 Sears Tower,
Chicago, IL 60606, was recordholder of 6%, Goldman Sachs International Equity
Fund, Omnibus A/C Growth & Income Strategy, 4900 Sears Tower, Chicago, IL 60606,
was recordholder of 28%, Goldman Sachs International Equity Fund, Omnibus A/C
Growth Strategy, 4900 Sears Tower, Chicago, IL 60606, was recordholder of 23%
and Goldman Sachs International Equity Fund, Omnibus A/C Aggressive Growth
Strategy, 4900 Sears Tower, Chicago, IL 60606, was recordholder of 9% of CORE
International Equity Fund's Institutional shares outstanding; Merrill Lynch
Pierce Fenner & Smith, for the sole benefit of its customers, Attn: Service Team
Seq, Goldman Sachs Funds, 4800 Deer Lake Rd East 3rd floor, Jacksonville, FL
32246, was recordholder of 5% of International Equity Fund's Class A shares
outstanding; Goldman Sachs & Co., c/o Mutual Fund Operations, FBO Acct
#010100683, 85 Broad St., New York, NY 10004 was recordholder of 8% of European
Equity Fund's Class A shares outstanding; Goldman Sachs Seed Account, Attn:
Darin Pritchett, 4900 Sears Tower, Chicago, IL 60606 was recordholder of 20% of
European Equity Fund's Institutional shares outstanding; Southbridge Securities,
150 Water St South, Cambridge, ON N1R 3E2, was recordholder of 5% of Japanese
Equity Fund's Class A shares 

                                     B-81
<PAGE>
 
outstanding; Goldman Sachs Seed Account, Attn: Darin Pritchett, 4900 Sears
Tower, Chicago, IL 60606 was recordholder of 56% of Japanese Equity Fund's
Institutional shares outstanding; Goldman Sachs International Small Cap Fund,
Omnibus A/C Growth & Income Strategy, 4900 Sears Tower, Chicago, IL 60606, was
recordholder of 22%, Goldman Sachs International Small Cap Fund, Omnibus A/C -
Growth Strategy, 4900 Sears Tower, Chicago, IL 60606, was recordholder of 19%,
Goldman Sachs International Small Cap Fund, Omnibus A/C Aggressive Growth
Strategy, 4900 Sears Tower, Chicago, IL 60606, was recordholder of 11%, Goldman
Sachs Seed Account, Attn: Darin Pritchett, 4900 Sears Tower, Chicago, IL 60606,
was recordholder of 29%, and Goldman Sachs & Co., c/o Mutual Fund Operations,
FBO Acct #029049525, 85 Broad St., New York, NY 10004 was recordholder of 9% of
International Small Cap Fund's Institutional shares outstanding; Resources Trust
Co., FBO Various Accounts, 8051 E. Maplewood Ave., Englewood, CO 80111, was
recordholder of 9% of Emerging Market Equity Fund's Class A shares; Goldman
Sachs Emerging Markets, Omnibus A/C Growth and Income Strategy, 4900 Sears
Tower, Chicago, IL 60606, was recordholder of 13%, Goldman Sachs Emerging
Markets, Omnibus A/C Growth Strategy, 4900 Sears Tower, Chicago, IL 60606, was
recordholder of 13%, Goldman Sachs Emerging Markets, Omnibus A/C Aggressive
Growth Strategy, 4900 Sears Tower, Chicago, IL 60606, was recordholder of 6%,
Board of Regents of the University of Texas System, Attn: Security Operations,
PO Box 2033, Austin, TX 78768, was recordholder of 9%, and Pennsylvania Public
School Employees Retirement System, Attn: Brian Carl, PO Box 125, Harrisburg, PA
17108, was recordholder of 10% of Emerging Market Fund's Institutional shares
outstanding; and State Street Bank and Trust Company, FBO Goldman Sachs Employee
Pension Plan, 200 Newport Ave, North Quincy, MA 02170, was recordholder of 7% of
Asia Growth Fund's Class A shares outstanding.

     Rule 18f-2 under the Act provides that any matter required to be submitted
by the provisions of the Act or applicable state law, or otherwise, to the
holders of the outstanding voting securities of an investment company such as
the Trust shall not be deemed to have been effectively acted upon unless
approved by the holders of a majority of the outstanding shares of each class or
series affected by such matter. Rule 18f-2 further provides that a class or
series shall be deemed to be affected by a matter unless the interests of each
class or series in the matter are substantially identical or the matter does not
affect any interest of such class or series. However, Rule 18f-2 exempts the
selection of independent public accountants, the approval of principal
distribution contracts and the election of directors from the separate voting
requirements of Rule 18f-2.

     The Trust is not required to hold annual meetings of shareholders and does
not intend to hold such meetings. In the event that a meeting of shareholders is
held, each share of the Trust will be entitled, as determined by the Trustees,
either to one vote for each share or to one vote for each dollar of net asset
value represented by such shares on all matters presented to shareholders
including the elections of Trustees (this method of voting being referred to as
"dollar based voting"). However, to the extent required by the Act or otherwise
determined by the Trustees, series and classes of the Trust will vote separately
from each other. Shareholders of the Trust do not have cumulative voting rights
in the election of Trustees. Meetings of shareholders of the Trust, or any
series or class thereof, may be called by the Trustees, certain officers or upon
the written request of holders of 10% or more of the shares entitled to vote at
such meetings. The shareholders of the Trust will have voting rights only with
respect to the limited number of matters specified in the Declaration of Trust
and such other matters as the Trustees may determine or may be required by law.

                                     B-82
<PAGE>
 
     The Declaration of Trust provides for indemnification of Trustees,
officers, employees and agents of the Trust unless the recipient is adjudicated
(i) to be liable by reason of willful misfeasance, bad faith, gross negligence
or reckless disregard of the duties involved in the conduct of such person's
office or (ii) not to have acted in good faith in the reasonable belief that
such person's actions were in the best interest of the Trust. The Declaration of
Trust provides that, if any shareholder or former shareholder of any series is
held personally liable solely by reason of being or having been a shareholder
and not because of the shareholder's acts or omissions or for some other reason,
the shareholder or former shareholder (or heirs, executors, administrators,
legal representatives or general successors) shall be held harmless from and
indemnified against all loss and expense arising from such liability. The Trust,
acting on behalf of any affected series, must, upon request by such shareholder,
assume the defense of any claim made against such shareholder for any act or
obligation of the series and satisfy any judgment thereon from the assets of the
series.

     The Declaration of Trust permits the termination of the Trust or of any
series or class of the Trust (i) by a majority of the affected shareholders at a
meeting of shareholders of the Trust, series or class; or (ii) by a majority of
the Trustees without shareholder approval if the Trustees determine that such
action is in the best interest of the Trust, series or its respective
shareholders. The factors and events that the Trustees may take into account in
making such determination include (i) the inability of the Trust or any
successor series or class to maintain its assets at an appropriate size; (ii)
changes in laws or regulations governing the Trust, series or class or affecting
assets of the type in which it invests; or (iii) economic developments or trends
having a significant adverse impact on their business or operations.

     The Declaration of Trust authorizes the Trustees without shareholder
approval to cause the Trust, or any series thereof, to merge or consolidate with
any corporation, association, trust or their organization or sell or exchange
all or substantially all of the property belonging to the Trust or any series
thereof. In addition, the Trustees, without shareholder approval, may adopt a
master-feeder structure by investing all or a portion of the assets of a series
of the Trust in the securities of another open-end investment company.

     The Declaration of Trust permits the Trustees to amend the Declaration of
Trust without a shareholder vote. However, shareholders of the Trust have the
right to vote on any amendment (i) that would adversely affect the voting rights
of shareholder; (ii) that is required by law to be approved by shareholders;
(iii) that would amend the provisions of the Declaration of Trust regarding
amendments and supplements thereto; or (iv) that the Trustees determine to
submit to shareholders.

     The Trustees may appoint separate Trustees with respect to one or more
series or classes of the Trust's shares (the "Series Trustees"). Series Trustees
may, but are not required to, serve as Trustees of the Trust or any other series
or class of the Trust. The Series Trustees have, to the exclusion of any other
Trustees of the Delaware Trust, all the powers and authorities of Trustees under
the Trust Instrument with respect to any other series or class.

                                     B-83
<PAGE>
 
SHAREHOLDER AND TRUSTEE LIABILITY
- ---------------------------------

     Under Delaware Law, the shareholders of the Funds are not generally subject
to liability for the debts or obligations of the Trust. Similarly, Delaware law
provides that a series of the Trust will not be liable for the debts or
obligations of any other series of the Trust. However, no similar statutory or
other authority limiting business trust shareholder liability exists in other
states. As a result, to the extent that a Delaware business trust or a
shareholder is subject to the jurisdiction of courts of such other states, the
courts may not apply Delaware law and may thereby subject the Delaware business
trust shareholders to liability. To guard against this risk, the Declaration of
Trust contains an express disclaimer of shareholder liability for acts or
obligations of a Fund. Notice of such disclaimer will normally be given in each
agreement, obligation or instrument entered into or executed by a series or the
Trustees. The Declaration of Trust provides for indemnification by the relevant
Fund for all loss suffered by a shareholder as a result of an obligation of the
series. The Declaration of Trust also provides that a series shall, upon
request, assume the defense of any claim made against any shareholder for any
act or obligation of the series and satisfy any judgment thereon. In view of the
above, the risk of personal liability of shareholders of a Delaware business
trust is remote.

     In addition to the requirements under Delaware law, the Declaration of
Trust provides that shareholders of a series may bring a derivative action on
behalf of the series only if the following conditions are met: (a) shareholders
eligible to bring such derivative action under Delaware law who hold at least
10% of the outstanding shares of the series, or 10% of the outstanding shares of
the class to which such action relates, shall join in the request for the
Trustees to commence such action; and (b) the Trustees must be afforded a
reasonable amount of time to consider such shareholder request and to
investigate the basis and to employ other advisers in considering the merits of
the request and shall require an undertaking by the shareholders making such
request to reimburse the series for the expense of any such advisers in the
event that the Trustees determine not to bring such action.

     The Declaration of Trust further provides that the Trustees will not be
liable for error of judgment or mistakes of fact or law, but nothing in the
Declaration of Trust protects a Trustee against liability to which he or she
would otherwise be subject by reason of willful misfeasance, bad faith, gross
negligence, or reckless disregard of the duties involved in the conduct of his
or her office.

                                   TAXATION

     The following is a summary of the principal U.S. federal income, and
certain state and local, tax considerations regarding the purchase, ownership
and disposition of shares in each Fund of the Trust. This summary does not
address special tax rules applicable to certain classes of investors, such as
tax-exempt entities, insurance companies and financial institutions. Each
prospective shareholder is urged to consult his own tax adviser with respect to
the specific federal, state, local and foreign tax consequences of investing in
each Fund. The summary is based on the laws in effect on the date of this
Additional Statement, which are subject to change.

                                     B-84
<PAGE>
 
GENERAL
=======

     Each Fund is a separate taxable entity. CORE Large Cap Value, Real Estate
Securities, European Equity, Japanese Equity and International Small Cap Funds
each intend to elect and each other Fund has elected to be treated and intends
to qualify for each taxable year as a regulated investment company under
Subchapter M of the Code.

     Qualification as a regulated investment company under the Code requires,
among other things, that (a) a Fund derive at least 90% of its gross income for
its taxable year from dividends, interest, payments with respect to securities
loans and gains from the sale or other disposition of stocks or securities or
foreign currencies, or other income (including but not limited to gains from
options, futures, and forward contracts) derived with respect to its business of
investing in such stock, securities or currencies (the "90% gross income test");
and (b) such Fund diversify its holdings so that, at the close of each quarter
of its taxable year, (i) at least 50% of the market value of such Fund's total
(gross) assets is comprised of cash, cash items, U.S. Government securities,
securities of other regulated investment companies and other securities limited
in respect of any one issuer to an amount not greater in value than 5% of the
value of such Fund's total assets and to not more than 10% of the outstanding
voting securities of such issuer, and (ii) not more than 25% of the value of its
total (gross) assets is invested in the securities of any one issuer (other than
U.S. Government securities and securities of other regulated investment
companies) or two or more issuers controlled by the Fund and engaged in the
same, similar or related trades or businesses. For purposes of the 90% gross
income test, income that a Fund earns from equity interests in certain entities
that are not treated as corporations (e.g., partnerships or trusts) for U.S. tax
purposes will generally have the same character for such Fund as in the hands of
such an entity; consequently, a Fund may be required to limit its equity
investments in such entities that earn fee income, rental income, or other
nonqualifying income. In addition, future Treasury regulations could provide
that qualifying income under the 90% gross income test will not include gains
from foreign currency transactions that are not directly related to a Fund's
principal business of investing in stock or securities or options and futures
with respect to stock or securities. Using foreign currency positions or
entering into foreign currency options, futures and forward or swap contracts
for purposes other than hedging currency risk with respect to securities in a
Fund's portfolio or anticipated to be acquired may not qualify as "directly-
related" under these tests.

     If a Fund complies with such provisions, then in any taxable year in which
such Fund distributes, in compliance with the Code's timing and other
requirements, at least 90% of its "investment company taxable income" (which
includes dividends, taxable interest, taxable accrued original issue discount
and market discount income, income from securities lending, any net short-term
capital gain in excess of net long-term capital loss, certain net realized
foreign exchange gains and any other taxable income other than "net capital
gain," as defined below, and is reduced by deductible expenses), and at least
90% of the excess of its gross tax-exempt interest income (if any) over certain
disallowed deductions, such Fund (but not its shareholders) will be relieved of
federal income tax on any income of the Fund, including long-term capital gains,
distributed to shareholders. However, if a Fund retains any investment company
taxable income or "net capital gain" (the excess of net long-term capital gain
over net short-term capital loss), it will be subject to a tax at regular
corporate rates on the amount retained. If the Fund retains any net capital
gain, the Fund may designate the retained amount as undistributed capital gains
in a notice to its shareholders who, if subject to U.S. federal income tax 

                                     B-85
<PAGE>
 
on long-term capital gains, (i) will be required to include in income for
federal income tax purposes, as long-term capital gain, their shares of such
undistributed amount, and (ii) will be entitled to credit their proportionate
shares of the tax paid by the Fund against their U.S. federal income tax
liabilities, if any, and to claim refunds to the extent the credit exceeds such
liabilities. For U.S. federal income tax purposes, the tax basis of shares owned
by a shareholder of the Fund will be increased by an amount equal under current
law to 65% of the amount of undistributed net capital gain included in the
shareholder's gross income. Each Fund intends to distribute for each taxable
year to its shareholders all or substantially all of its investment company
taxable income, net capital gain and any net tax-exempt interest. Exchange
control or other foreign laws, regulations or practices may restrict
repatriation of investment income, capital or the proceeds of securities sales
by foreign investors such as the CORE International Equity, International
Equity, European Equity, Japanese Equity, International Small Cap, Emerging
Markets Equity or Asia Growth Funds and may therefore make it more difficult for
such a Fund to satisfy the distribution requirements described above, as well as
the excise tax distribution requirements described below. However, each Fund
generally expects to be able to obtain sufficient cash to satisfy such
requirements from new investors, the sale of securities or other sources. If for
any taxable year a Fund does not qualify as a regulated investment company, it
will be taxed on all of its investment company taxable income and net capital
gain at corporate rates, and its distributions to shareholders will be taxable
as ordinary dividends to the extent of its current and accumulated earnings and
profits.

     In order to avoid a 4% federal excise tax, each Fund must distribute (or be
deemed to have distributed) by December 31 of each calendar year at least 98% of
its taxable ordinary income for such year, at least 98% of the excess of its
capital gains over its capital losses (generally computed on the basis of the
one-year period ending on October 31 of such year), and all taxable ordinary
income and the excess of capital gains over capital losses for the previous year
that were not distributed for such year and on which the Fund paid no federal
income tax. For federal income tax purposes, dividends declared by a Fund in
October, November or December to shareholders of record on a specified date in
such a month and paid during January of the following year are taxable to such
shareholders as if received on December 31 of the year declared. The Funds
anticipate that they will generally make timely distributions of income and
capital gains in compliance with these requirements so that they will generally
not be required to pay the excise tax. For federal income tax purposes, each
Fund is permitted to carry forward a net capital loss in any year to offset its
own capital gains, if any, during the eight years following the year of the
loss. Asia Growth Fund had approximately $184,000, $5,487,000 and $10,408,000
and $14,137,000 at October 31, 1997 of capital loss carry forwards expiring in
2002, 2003, 2004 and 2005, respectively, for federal tax purposes. These amounts
are available to be carried forward to offset future capital gains to the extent
permitted by the Code and applicable tax regulations.

     Gains and losses on the sale, lapse, or other termination of options and
futures contracts, options thereon and certain forward contracts (except certain
foreign currency options, forward contracts and futures contracts) will
generally be treated as capital gains and losses. Certain of the futures
contracts, forward contracts and options held by a Fund will be required to be
"marked-to-market" for federal income tax purposes, that is, treated as having
been sold at their fair market value on the last day of the Fund's taxable year.
These provisions may require a Fund to recognize income or gains without a
concurrent receipt of cash. Any gain or loss recognized on actual or deemed
sales of these futures contracts, forward contracts, or options will (except for
certain foreign 

                                     B-86
<PAGE>
 
currency options, forward contracts, and futures contracts) be treated as 60%
long-term capital gain or loss and 40% short-term capital gain or loss. As a
result of certain hedging transactions entered into by a Fund, the Fund may be
required to defer the recognition of losses on futures contracts, forward
contracts, and options or underlying securities or foreign currencies to the
extent of any unrecognized gains on related positions held by such Fund and the
characterization of gains or losses as long-term or short-term may be changed.
The tax provisions described above applicable to options, futures and forward
contracts may affect the amount, timing and character of a Fund's distributions
to shareholders. Application of certain requirements for qualification as a
regulated investment company and/or these tax rules to certain investment
practices, such as dollar rolls, or certain derivatives such as interest rate
swaps, floors, caps and collars and currency, mortgage or index swaps may be
unclear in some respects, and a Fund may therefore be required to limit its
participation in such transactions. Certain tax elections may be available to a
Fund to mitigate some of the unfavorable consequences described in this
paragraph.

     Section 988 of the Code contains special tax rules applicable to certain
foreign currency transactions and instruments that may affect the amount, timing
and character of income, gain or loss recognized by a Fund. Under these rules,
foreign exchange gain or loss realized with respect to foreign currencies and
certain futures and options thereon, foreign currency-denominated debt
instruments, foreign currency forward contracts, and foreign currency-
denominated payables and receivables will generally be treated as ordinary
income or loss, although in some cases elections may be available that would
alter this treatment. If a net foreign exchange loss treated as ordinary loss
under Section 988 of the Code were to exceed a Fund's investment company taxable
income (computed without regard to such loss) for a taxable year, the resulting
loss would not be deductible by the Fund or its shareholders in future years.
Net loss, if any, from certain foregoing currency transactions or instruments
could exceed net investment income otherwise calculated for accounting purposes
with the result being either no dividends being paid or a portion of a Fund's
dividends being treated as a return of capital for tax purposes, nontaxable to
the extent of a shareholder's tax basis in his shares and, once such basis is
exhausted, generally giving rise to capital gains.

     A Fund's investment in zero coupon securities, deferred interest
securities, certain structured securities or other securities bearing original
issue discount or, if a Fund elects to include market discount in income
currently, market discount, as well as any "mark to market" gain from certain
options, futures or forward contracts, as described above, will generally cause
it to realize income or gain prior to the receipt of cash payments with respect
to these securities or contracts. In order to obtain cash to enable it to
distribute this income or gain, maintain its qualification as a regulated
investment company and avoid federal income or excise taxes, the Fund may be
required to liquidate portfolio securities that it might otherwise have
continued to hold.

     Each Fund (other than CORE Large Cap Value, CORE U.S. Equity, CORE Large
Cap Growth and CORE Small Cap Equity Funds) anticipates that it will be subject
to foreign taxes on its income (possibly including, in some cases, capital
gains) from foreign securities. Tax conventions between certain countries and
the U.S. may reduce or eliminate such taxes in some cases. If, as may occur for
CORE International Equity, International Equity, European Equity, Japanese
Equity, International Small Cap, Emerging Markets Equity and Asia Growth Funds,
more than 50% of a Fund's total assets at the close of any taxable year consists
of stock or securities of foreign corporations, the Fund may file 

                                     B-87
<PAGE>
 
an election with the Internal Revenue Service pursuant to which shareholders of
the Fund would be required to (i) include in ordinary gross income (in addition
to taxable dividends actually received) their pro rata shares of foreign income
taxes paid by the Fund that are treated as income taxes under U.S. tax
regulations (which excludes, for example, stamp taxes, securities transaction
taxes, and similar taxes) even though not actually received by such
shareholders, and (ii) treat such respective pro rata portions as foreign income
taxes paid by them.

     If the CORE International Equity, International Equity, European Equity,
Japanese Equity, International Small Cap, Emerging Markets Equity and Asia
Growth Funds make this election, its respective shareholders may then deduct
such pro rata portions of qualified foreign taxes in computing their taxable
incomes, or, alternatively, use them as foreign tax credits, subject to
applicable limitations, against their U.S. federal income taxes. Shareholders
who do not itemize deductions for federal income tax purposes will not, however,
be able to deduct their pro rata portion of foreign taxes paid by a Fund,
although such shareholders will be required to include their shares of such
taxes in gross income if the election is made.

     If a shareholder chooses to take credit for the foreign taxes deemed paid
by such shareholder as a result of any such election by CORE International
Equity, International Equity, European Equity, Japanese Equity, International
Small Cap, Emerging Markets Equity or Asia Growth Funds, the amount of the
credit that may be claimed in any year may not exceed the same proportion of the
U.S. tax against which such credit is taken which the shareholder's taxable
income from foreign sources (but not in excess of the shareholder's entire
taxable income) bears to his entire taxable income. For this purpose,
distributions from long-term and short-term capital gains or foreign currency
gains by a Fund will generally not be treated as income from foreign sources.
This foreign tax credit limitation may also be applied separately to certain
specific categories of foreign-source income and the related foreign taxes. As a
result of these rules, which have different effects depending upon each
shareholder's particular tax situation, certain shareholders of CORE
International Equity, International Equity, European Equity, Japanese Equity,
International Small Cap, Emerging Markets Equity and Asia Growth Funds may not
be able to claim a credit for the full amount of their proportionate share of
the foreign taxes paid by such Fund even if the election is made by such a Fund.

     Shareholders who are not liable for U.S. federal income taxes, including
tax-exempt shareholders, will ordinarily not benefit from this election. Each
year, if any, that the CORE International Equity, International Equity, European
Equity, Japanese Equity, International Small Cap, Emerging Markets Equity or
Asia Growth Funds files the election described above, its shareholders will be
notified of the amount of (i) each shareholder's pro rata share of qualified
foreign taxes paid by a Fund and (ii) the portion of Fund dividends which
represents income from each foreign country. The other Funds will not be
entitled to elect to pass foreign taxes and associated credits or deductions
through to their shareholders because they will not satisfy the 50% requirement
described above. If a Fund cannot or does not make this election, it may deduct
such taxes in computing the amount it is required to distribute.

     If a Fund acquires stock (including, under proposed regulations, an option
to acquire stock such as is inherent in a convertible bond) in certain foreign
corporations that receive at least 75% of their annual gross income from passive
sources (such as interest, dividends, rents, royalties or capital gain) 

                                     B-88
<PAGE>
 
or hold at least 50% of their assets in investments producing such passive
income ("passive foreign investment companies"), the Fund could be subject to
federal income tax and additional interest charges on "excess distributions"
received from such companies or gain from the sale of stock in such companies,
even if all income or gain actually received by the Fund is timely distributed
to its shareholders. The Fund would not be able to pass through to its
shareholders any credit or deduction for such a tax. In some cases, elections
may be available that would ameliorate these adverse tax consequences, but such
elections would require the Fund to include each year certain amounts as income
or gain (subject to the distribution requirements described above) without a
concurrent receipt of cash. Each Fund may limit and/or manage its holdings in
passive foreign investment companies to minimize its tax liability or maximize
its return from these investments.

     Investments in lower-rated securities may present special tax issues for a
Fund to the extent actual or anticipated defaults may be more likely with
respect to such securities. Tax rules are not entirely clear about issues such
as when a Fund may cease to accrue interest, original issue discount, or market
discount; when and to what extent deductions may be taken for bad debts or
worthless securities; how payments received on obligations in default should be
allocated between principal and income; and whether exchanges of debt
obligations in a workout context are taxable. These and other issues will be
addressed by a Fund, in the event it invests in such securities, in order to
seek to eliminate or minimize any adverse tax consequences.

TAXABLE U.S. SHAREHOLDERS - DISTRIBUTIONS
=========================================

For U.S. federal income tax purposes, distributions by a Fund, whether
reinvested in additional shares or paid in cash, generally will be taxable to
shareholders who are subject to tax. Shareholders receiving a distribution in
the form of newly issued shares will be treated for U.S. federal income tax
purposes as receiving a distribution in an amount equal to the amount of cash
they would have received had they elected to receive cash and will have a cost
basis in each share received equal to such amount divided by the number of
shares received.

     Distributions from investment company taxable income for the year will be
taxable as ordinary income. Distributions designated as derived from a Fund's
dividend income, if any, that would be eligible for the dividends received
deduction if such Fund were not a regulated investment company may be eligible,
for the dividends received deduction for corporate shareholders. The dividends-
received deduction, if available, is reduced to the extent the shares with
respect to which the dividends are received are treated as debt-financed under
federal income tax law and is eliminated if the shares are deemed to have been
held for less than a minimum period, generally 46 days. Because eligible
dividends are limited to those a Fund receives from U.S. domestic corporations,
it is unlikely that a substantial portion of the distributions made by CORE
International Equity, International Equity, European Equity, Japanese Equity,
International Small Cap, Asia Growth and Emerging Markets Equity Funds will
qualify for the dividends-received deduction. The entire dividend, including the
deducted amount, is considered in determining the excess, if any, of a corporate
shareholder's adjusted current earnings over its alternative minimum taxable
income, which may increase its liability for the federal alternative minimum
tax, and the dividend may, if it is treated as an "extraordinary dividend" under
the Code, reduce such shareholder's tax basis in its shares of a Fund. Capital
gain dividends (i.e., dividends from net capital gain) if designated as such in
a written notice to shareholders mailed not 

                                     B-89
<PAGE>
 
later than 60 days after a Fund's taxable year closes, will be taxed to
shareholders as long-term capital gain regardless of how long shares have been
held by shareholders, but are not eligible for the dividends received deduction
for corporations. Such long-term capital gain will be taxed at a maximum rate of
20%. Distributions, if any, that are in excess of a Fund's current and
accumulated earnings and profits will first reduce a shareholder's tax basis in
his shares and, after such basis is reduced to zero, will generally constitute
capital gains to a shareholder who holds his shares as capital assets.

     Different tax treatment, including penalties on certain excess
contributions and deferrals, certain pre-retirement and post-retirement
distributions, and certain prohibited transactions is accorded to accounts
maintained as qualified retirement plans. Shareholders should consult their tax
advisers for more information.

TAXABLE U.S. SHAREHOLDERS - SALE OF SHARES
==========================================

     When a shareholder's shares are sold, redeemed or otherwise disposed of in
a transaction that is treated as a sale for tax purposes, the shareholder will
generally recognize gain or loss equal to the difference between the
shareholder's adjusted tax basis in the shares and the cash, or fair market
value of any property, received. If the shareholder holds the shares as a
capital asset at the time of sale, the character of the gain or loss should be
capital, and treated as long-term if the shareholder's holding period is more
than one year, and short-term otherwise. In general, the maximum long-term
capital gain rate will be 20% for capital gains on assets held more than one
year. Shareholders should consult their own tax advisers with reference to their
particular circumstances to determine whether a redemption (including an
exchange) or other disposition of Fund shares is properly treated as a sale for
tax purposes, as is assumed in this discussion. If a shareholder receives a
capital gain dividend with respect to shares and such shares have a tax holding
period of six months or less at the time of a sale or redemption of such shares,
then any loss the shareholder realizes on the sale or redemption will be treated
as a long-term capital loss to the extent of such capital gain dividend. All or
a portion of any sales load paid upon the purchase of shares of a Fund will not
be taken into account in determining gain or loss on the redemption or exchange
of such shares within 90 days after their purchase to the extent the redemption
proceeds are reinvested, or the exchange is effected, without payment of an
additional sales load pursuant to the reinvestment or exchange privilege. The
load not taken into account will be added to the tax basis of the newly-acquired
shares. Additionally, any loss realized on a sale or redemption of shares of a
Fund may be disallowed under "wash sale" rules to the extent the shares disposed
of are replaced with other shares of the same Fund within a period of 61 days
beginning 30 days before and ending 30 days after the shares are disposed of,
such as pursuant to a dividend reinvestment in shares of such Fund. If
disallowed, the loss will be reflected in an adjustment to the basis of the
shares acquired.

     Each Fund may be required to withhold, as "backup withholding," federal
income tax at a rate of 31% from dividends (including capital gain dividends)
and share redemption and exchange proceeds to individuals and other non-exempt
shareholders who fail to furnish such Fund with a correct taxpayer
identification number ("TIN") certified under penalties of perjury, or if the
Internal Revenue Service or a broker notifies the Fund that the payee is subject
to backup withholding as a result of failing to properly report  interest or
dividend income to the Internal Revenue Service or that the TIN furnished 

                                     B-90
<PAGE>
 
by the payee to the Fund is incorrect, or if (when required to do so) the payee
fails to certify under penalties of perjury that it is not subject to backup
withholding. A Fund may refuse to accept an application that does not contain
any required TIN or certification that the TIN provided is correct. If the
backup withholding provisions are applicable, any such dividends and proceeds,
whether paid in cash or reinvested in additional shares, will be reduced by the
amounts required to be withheld. Any amounts withheld may be credited against a
shareholder's U.S. federal income tax liability.

NON-U.S. SHAREHOLDERS
=====================

     The discussion above relates solely to U.S. federal income tax law as it
applies to "U.S. persons" subject to tax under such law. Shareholders who, as to
the United States, are not "U.S. persons," (i.e., are nonresident aliens,
foreign corporations, fiduciaries of foreign trusts or estates, foreign
partnerships or other non-U.S. investors) generally will be subject to U.S.
federal withholding tax at the rate of 30% on distributions treated as ordinary
income unless the tax is reduced or eliminated pursuant to a tax treaty or the
dividends are effectively connected with a U.S. trade or business of the
shareholder. In the latter case the dividends will be subject to tax on a net
income basis at the graduated rates applicable to U.S. individuals or domestic
corporations. Distributions of net capital gain, including amounts retained by a
Fund which are designated as undistributed capital gains, to a non-U.S.
shareholder will not be subject to U.S. federal income or withholding tax unless
the distributions are effectively connected with the shareholder's trade or
business in the United States or, in the case of a shareholder who is a
nonresident alien individual, the shareholder is present in the United States
for 183 days or more during the taxable year and certain other conditions are
met. Non-U.S. shareholders may also be subject to U.S. federal withholding tax
on deemed income resulting from any election by CORE International Equity,
International Equity, European Equity, Japanese Equity, International Small Cap,
Emerging Markets Equity or Asia Growth Funds to treat qualified foreign taxes it
pays as passed through to shareholders (as described above), but they may not be
able to claim a U.S. tax credit or deduction with respect to such taxes.

     Any capital gain realized by a non-U.S. shareholder upon a sale or
redemption of shares of a Fund will not be subject to U.S. federal income or
withholding tax unless the gain is effectively connected with the shareholder's
trade or business in the U.S., or in the case of a shareholder who is a
nonresident alien individual, the shareholder is present in the U.S. for 183
days or more during the taxable year and certain other conditions are met.

     Non-U.S. persons who fail to furnish a Fund with an IRS Form W-8 or an
acceptable substitute may be subject to backup withholding at the rate of 31% on
capital gain dividends and the proceeds of redemptions and exchanges.  Each
shareholder who is not a U.S. person should consult his or her tax adviser
regarding the U.S. and non-U.S. tax consequences of ownership of shares of and
receipt of distributions from the Funds.

STATE AND LOCAL
===============

     Each Fund may be subject to state or local taxes in jurisdictions in which
such Fund may be deemed to be doing business.  In addition, in those states or
localities which have  income tax laws, the treatment of such Fund and its
shareholders under such laws may differ from their treatment under 

                                     B-91
<PAGE>
 
federal income tax laws, and investment in such Fund may have tax consequences
for shareholders different from those of a direct investment in such Fund's
portfolio securities. Shareholders should consult their own tax advisers
concerning these matters.

                              FINANCIAL STATEMENTS

     The audited financial statements and related Reports of Independent Public
Accountants, contained in the 1998 Annual Report of each of the Funds (except
Core Large Cap Value, Real Estate Securities, European Equity, Japanese Equity
and International Small Cap Funds), are incorporated herein by reference into
this Additional Statement.  In addition, the unaudited financial statements
contained in the Semi-Annual Report for the period ended July 31, 1998 of each
of the Funds (except CORE Large Cap Value, Real Estate Securities and European
Equity Funds) are incorporated by reference into this Additional Statement.  No
other part of the Annual or any Semi-Annual Report is incorporated by reference
herein.

                               OTHER INFORMATION

     Each Fund will redeem shares solely in cash up to the lesser of $250,000 or
1% of the net asset value of the Fund during any 90-day period for any one
shareholder.  Each Fund, however, reserves the right to pay redemptions
exceeding $250,000 or 1% of the net asset value of the Fund at the time of
redemption by a distribution in kind of securities (instead of cash) from such
Fund.  The securities distributed in kind would be readily marketable and would
be valued for this purpose using the same method employed in calculating the
Fund's net asset value per share.  See "Net Asset Value." If a shareholder
receives redemption proceeds in kind, the shareholder should expect to incur
transaction costs upon the disposition of the securities received in the
redemption.

     The right of a shareholder to redeem shares and the date of payment by each
Fund may be suspended for more than seven days for any period during which the
New York Stock Exchange is closed, other than the customary weekends or
holidays, or when trading on such Exchange is restricted as determined by the
SEC; or during any emergency, as determined by the SEC, as a result of which it
is not reasonably practicable for such Fund to dispose of securities owned by it
or fairly to determine the value of its net assets; or for such other period as
the SEC may by order permit for the protection of shareholders of such Fund.

     As stated in the Prospectuses, the Trust may authorize Service
Organizations and other institutions that provide recordkeeping, reporting and
processing services to their customers to accept on the Trust's behalf purchase,
redemption and exchange orders placed by or on behalf of their customers and, if
approved by the Trust, to designate other intermediaries to accept such orders.
These institutions may receive payments from the Trust or Goldman Sachs for
their services.  In some, but not all, cases these payments will be pursuant to
a Distribution or Service Plan described in the Prospectuses and this Additional
Statement.  Certain Service Organizations or institutions may enter into sub-
transfer agency agreements with the Trust or Goldman Sachs with respect to their
services.

     The Adviser, Distributor and/or their affiliates may pay, out of their own
assets, compensation to Authorized Dealers for the sale and distribution of
Shares of the Funds and/or for the servicing of 

                                     B-92
<PAGE>
 
those Shares. These payments ("Additional Payments") would be in addition to the
payments by the Funds described in the Funds' Prospectus and this Additional
Statement for distribution and shareholder servicing and processing, and would
also be in addition to the sales commissions payable to dealers as set forth in
the Prospectus. These Additional Payments may take the form of "due diligence"
payments for an Authorized Dealer's examination of the Funds and payments for
providing extra employee training and information relating to the Funds;
"listing" fees for the placement of the Funds on a dealer's list of mutual funds
available for purchase by its customers; "finders" or "referral" fees for
directing investors to the Funds; "marketing support" fees for providing
assistance in promoting the sale of the Funds' Shares; and payments for the sale
of Shares and/or the maintenance of Share balances. In addition, the Adviser,
Distributor and/or their affiliates may make Additional Payments for
subaccounting, administrative and/or shareholder processing services that are in
addition to the shareholder servicing and processing fees paid by the Funds. The
Additional Payments made by the Adviser, Distributor and their affiliates may be
a fixed dollar amount, may be based on the number of customer accounts
maintained by an Authorized Dealer, or may be based on a percentage of the value
of Shares sold to, or held by, customers of the Authorized Dealers involved, and
may be different for different Authorized Dealers. Furthermore, the Adviser,
Distributor and/or their affiliates may contribute to various non-cash and cash
incentive arrangements to promote the sale of shares, as well as sponsor various
educational programs, sales contests and/or promotions in which participants may
receive prizes such as travel awards, merchandise and cash and/or investment
research pertaining to particular securities and other financial instruments or
to the securities and financial markets generally, educational information and
related support materials and software. The Adviser, Distributor and their
affiliates may also pay for the travel expenses, meals, lodging and
entertainment of Authorized Dealers and their salespersons and guests in
connection with educational, sales and promotional programs subject to
applicable NASD regulations.

     The Prospectuses and this Additional Statement do not contain all the
information included in the Registration Statement filed with the SEC under the
1933 Act with respect to the securities offered by the Prospectuses.  Certain
portions of the Registration Statement have been omitted from the Prospectuses
and this Additional Statement pursuant to the rules and regulations of the SEC.
The Registration Statement including the exhibits filed  therewith may be
examined at the office of the SEC in Washington, D.C.

     Statements contained in the Prospectuses or in this Additional Statement as
to the contents of any contract or other document referred to are not
necessarily complete, and, in each instance, reference is made to the copy of
such contract or other document filed as an exhibit to the Registration
Statement of which the Prospectuses and this Additional Statement form a part,
each such statement being qualified in all respects by such reference.

                         DISTRIBUTION AND SERVICE PLANS
            (CLASS A SHARES, CLASS B SHARES AND CLASS C SHARES ONLY)

     DISTRIBUTION AND SERVICE PLANS.  As described in the Prospectus, the Trust
has adopted, on behalf of Class A, Class B and Class C Shares of each Fund,
distribution and service plans (each a "Plan") pursuant to Rule 12b-1 under the
Act.  See "Distribution and Service Plans" in the Prospectus.

                                     B-93
<PAGE>
 
     The Plans for each Fund were most recently approved on July 22, 1998 by a
majority vote of the Trustees of the Trust, including a majority of the non-
interested Trustees of the Trust who have no direct or indirect financial
interest in the Plans, cast in person at a meeting called for the purpose of
approving the Plans.

     The compensation for distribution services payable under a Plan may not
exceed 0.25%, 0.75% and 0.75%, per annum of a Fund's average daily net assets
attributable to Class A, Class B and Class C Shares respectively, of such Fund.
Under the Plans for Class A (CORE International Equity, International Equity,
European Equity, Japanese Equity, International Small Cap, Emerging Markets
Equity, Asia Growth and Real Estate Securities Funds only), Class B and Class C
Shares, Goldman Sachs is also entitled to received a separate fee for personal
and account maintenance services equal to an annual basis of 0.25% of each
Fund's average daily net assets attributable to Class A, Class B or Class C
Shares.  With respect to Class A Shares, the Distributor at its discretion may
use compensation for distribution services paid under the Plan for personal and
account maintenance services and expenses so long as such total compensation
under the Plan does not exceed the maximum cap on "service fees" imposed by the
NASD.

     Each Plan is a compensation plan which provides for the payment of a
specified fee without regard to the expenses actually incurred by Goldman Sachs.
If such fee exceeds Goldman Sachs' expenses, Goldman Sachs may realize a profit
from these arrangements.  The distribution fees received by Goldman Sachs under
the Plans and contingent deferred sales charge on Class B and Class C Shares may
be sold by Goldman Sachs as distributor to entities which provide financing for
payments to Authorized Dealers in respect of sales of Class A, Class B and Class
C Shares.  To the extent such fees are not paid to such dealers, Goldman Sachs
may retain such fee as compensation for its services and expenses of
distributing the Funds' Class A, Class B and Class C Shares.

     Under each Plan, Goldman Sachs, as distributor of each Fund's Class A,
Class B and Class C Shares, will provide to the Trustees of the Trust for their
review, and the Trustees of the Trust will review at least quarterly, a written
report of the services provided and amounts expended by Goldman Sachs under the
Plans and the purposes for which such services were performed and expenditures
were made.

     The Plans will remain in effect until May 1, 1999 and from year to year
thereafter, provided that such continuance is approved annually by a majority
vote of the Trustees of the Trust, including a majority of the non-interested
Trustees of the Trust who have no direct or indirect financial interest in the
Plans. The Plans may not be amended to increase materially the amount of
distribution compensation without approval of a majority of the outstanding
Class A, Class B or Class C Shares of the affected Fund and share class.  All
material amendments of a Plan must also be approved by the Trustees of the Trust
in the manner described above.  A Plan may be terminated at any time as to any
Fund without payment of any penalty by a vote of a majority of the non-
interested Trustees of the Trust or by vote of a majority of the Class A, Class
B or Class C Shares, respectively, of the applicable Fund and share class. If a
Plan was terminated by the Trustees of the Trust and no successor plan was
adopted, the Fund would cease to make payments to Goldman Sachs under the Plan
and Goldman Sachs would be unable to recover the amount of any of its
unreimbursed expenditures.  So long as a Plan is in effect, the selection and
nomination of non-interested Trustees of the Trust will be committed 

                                     B-94
<PAGE>
 
to the discretion of the non-interested Trustees of the Trust. The Trustees of
the Trust have determined that in their judgment there is a reasonable
likelihood that the Plans will benefit the Funds and their Class A, Class B and
Class C Shareholders.

     For the fiscal years ended January 31, 1998, January 31, 1997 and January
31, 1996 the distribution fees paid to Goldman Sachs pursuant to its Class A
Plan by each Fund then in existence were as follows:

<TABLE>
<CAPTION>
 
                                      1998       1997      1996
                                   ----------  --------  --------
<S>                                <C>         <C>       <C>
Balanced Fund                      $        0  $      0  $ 10,103
Growth and Income Fund                723,634   139,025   191,414
CORE Large Cap Value Fund/1/              N/A       N/A       N/A
CORE U.S. Equity Fund                 720,025   363,264   264,159
CORE Large Cap Growth Fund/1/               0       N/A       N/A
CORE Small Cap Equity Fund/1/           1,380       N/A       N/A
CORE International Equity Fund/1/       2,751       N/A       N/A
Capital Growth Fund                         0         0   770,488
Mid Cap Equity Fund/1/                 67,478       N/A       N/A
International Equity Fund           1,416,253   900,274   231,028
Small Cap Value Fund                        0         0   272,353
European Equity Fund/1/                   N/A       N/A       N/A
Japanese Equity Fund/1/                   N/A       N/A       N/A
International Small Cap Fund/1/           N/A       N/A       N/A
Emerging Markets Equity Fund/1/         3,381       N/A       N/A
Asia Growth Fund                      431,390   526,448   114,156
Real Estate Securities Fund/1/            N/A       N/A       N/A
</TABLE>
______________

1.   The Class A Share class of the CORE Large Cap Value, CORE Large Cap Growth,
CORE Small Cap Equity, CORE International Equity, Mid Cap Equity, European
Equity, Japanese Equity, International Small Cap, Emerging Markets Equity and
Real Estate Securities Funds commenced operations on December 15, 1998, May 1,
1997, August 15, 1997, August 15, 1997, August 15, 1997, October 1, 1998, May 1,
1998, May 1, 1998, December 15, 1997 and July 27, 1998, respectively.

                                     B-95
<PAGE>
 
          Without the voluntary limitations then in effect, the Funds would have
paid Goldman Sachs the following distribution fees during the fiscal years ended
January 31, 1998, January 31, 1997 and January 31, 1996 pursuant to their
respective Class A Plans:

<TABLE>
<CAPTION>
 
                                      1998        1997        1996
                                   ----------  ----------  ----------
<S>                                <C>         <C>         <C>
Balanced Fund                      $  301,397  $  153,392  $   84,350
Growth and Income Fund              2,324,970   1,252,257     986,255
CORE Large Cap Value Fund/1/              N/A         N/A         N/A
CORE U.S. Equity Fund                 771,451     432,457     389,883
CORE Large Cap Growth Fund/1/          61,924         N/A         N/A
CORE Small Cap Equity Fund/1/           6,898         N/A         N/A
CORE International Equity Fund/1/       2,751         N/A         N/A
Capital Growth Fund                 2,678,370   2,171,462   3,104,424
Mid Cap Equity Fund/1/                 67,478         N/A         N/A
International Equity Fund           1,632,745   1,071,755     929,746
Small Cap Value Fund                  727,298     529,684     999,563
European Equity Fund/1/                   N/A         N/A         N/A
Japanese Equity Fund/1/                   N/A         N/A         N/A
International Small Cap Fund/1/           N/A         N/A         N/A
Emerging Markets Equity Fund/1/         3,381         N/A         N/A
Asia Growth Fund                      513,560     626,724     505,066
Real Estate Securities Fund/1/            N/A         N/A         N/A
</TABLE>
_____________________

1.   The Class A Share class of the CORE Large Cap Value, CORE Large Cap Growth,
CORE Small Cap Equity, CORE International Equity, Mid Cap Equity, European
Equity, Japanese Equity, International Small Cap, Emerging Markets Equity and
Real Estate Securities Funds commenced operations on December 15, 1998, May 1,
1997, August 15, 1997, August 15, 1997, August 15, 1997, October 1, 1998, May 1,
1998, May 1, 1998, December 15, 1997 and July 27, 1998, respectively.

                                     B-96
<PAGE>
 
     During the fiscal years ended January 31, 1998, January 31, 1997 and
January 31, 1996 Goldman Sachs was paid the following distribution fees under
the Class B Plan of each applicable Fund with Class B shares then in existence:

<TABLE>
<CAPTION>
                                       1998      1997      1996
                                   ----------  -------     ----
<S>                                <C>         <C>         <C>
Balanced Fund                      $   74,569  $ 3,861     N/A
Growth and Income Fund              1,117,813   28,075     N/A
CORE Large Cap Value Fund/1/              N/A      N/A     N/A
CORE U.S. Equity Fund                 265,025   36,508     N/A
CORE Large Cap Growth Fund/1/          34,332      N/A     N/A
CORE Small Cap Equity Fund/1/          20,064      N/A     N/A
CORE International Equity Fund/1/       5,700      N/A     N/A
Capital Growth Fund                   127,395    7,632     N/A
Mid Cap Equity Fund/1/                 47,585      N/A     N/A
International Equity Fund             314,578   44,148     N/A
Small Cap Value Fund                  160,608    8,973     N/A
European Equity Fund/1/                   N/A      N/A     N/A
Japanese Equity Fund/1/                   N/A      N/A     N/A
International Small Cap Fund/1/           N/A      N/A     N/A
Emerging Markets Equity Fund/1/            38      N/A     N/A
Asia Growth Fund                       28,550   10,229     N/A
Real Estate Securities Fund/1/            N/A      N/A     N/A 
</TABLE>
_______________________

1    The Class B Share class of the CORE Large Cap Value, CORE Large Cap Growth,
CORE Small Cap Equity, CORE International Equity, Mid Cap Equity, European
Equity, Japanese Equity, International Small Cap, Emerging Markets Equity and
Real Estate Securities Funds commenced operations on December 15, 1998, May 1,
1997, August 15, 1997, August 15, 1997, August 15, 1997, October 1, 1998, May 1,
1998, May 1, 1998, December 15, 1997 and July 27, 1998, respectively.

                                     B-97
<PAGE>
 
     During the fiscal year ended January 31, 1998, Goldman Sachs was paid the
following distribution fees under the Class C Plan of each applicable Fund with
Class C shares then in existence:

<TABLE>
<CAPTION>
                                    1998
                                  -------
<S>                               <C>
Balanced                          $13,290
Growth and Income                  57,542
CORE Large Cap Value Fund/1/          N/A
CORE U.S. Equity Fund              14,614
CORE Large Cap Growth Fund          6,880
CORE Small Cap Equity Fund          4,038
CORE International Equity Fund      3,118
Capital Growth Fund                 9,607
Mid Cap Equity Fund                10,495
International Equity Fund           7,485
Small Cap Value Fund               12,158
European Equity Fund/1/               N/A
Japanese Equity Fund/1/               N/A
International Small Cap Fund/1/       N/A
Emerging Markets Fund                  28
Asia Growth Fund                    2,854
Real Estate Securities Fund/1/        N/A
</TABLE>
___________________________

1    Not Operational

No distribution fees were paid to Goldman Sachs under the Class C Plans during
the fiscal year ended January 31, 1997.

                                     B-98
<PAGE>
 
     During the fiscal year ended January 31, 1998, Goldman Sachs incurred the
following expenses in connection with distribution under the Class A Plan of
each applicable Fund with Class A Shares then in existence:

<TABLE>
<CAPTION>
                                                         Compensation                       Printing and     Preparation       
                                                         and Expenses       Allocable       Mailing of       and               
                                                         of the             Overhead,       Prospectuses     Distribution      
                                                         Distributor        Telephone       to Other         of Sales          
                                       Compensation      & Its Sales        and Travel      Than Current     Literature and    
                                       to Dealers        Personnel          Expenses        Shareholders     Advertising        
                                       ------------      ---------          --------        ------------     -----------
<S>                                    <C>               <C>                <C>             <C>              <C>
Fiscal Year Ended January 31, 1998:
 
Balanced Fund/1/                       $     N/A         $      N/A         $      N/A       $      N/A       $      N/A
Growth and Income Fund                    80,177          2,763,000          1,137,000          164,000          235,000
CORE Large Cap Value Fund/2/                 N/A                N/A                N/A              N/A              N/A
CORE U.S. Equity Fund                     41,621            546,000            260,000           29,000           69,000
CORE Large Cap Growth Fund                   N/A                N/A                N/A              N/A              N/A
CORE Small Cap Equity Fund                   534            338,000            138,000           19,000           33,000
CORE International Equity Fund                 0            294,000            126,000           16,000           22,000
Capital Growth Fund/1/                       N/A                N/A                N/A              N/A              N/A
Mid Cap Equity                            10,090            539,000            154,000           32,000           44,000
International Equity Fund/1/             240,271            537,000            236,000           32,000           50,000
European Equity Fund/2/                      N/A                N/A                N/A              N/A              N/A
Japanese Equity Fund/2                       N/A                N/A                N/A              N/A              N/A
International Small Cap/2/                   N/A                N/A                N/A              N/A              N/A
Small Cap Value Fund/1/                      N/A                N/A                N/A              N/A              N/A
Asia Growth Fund                         112,925            281,000            114,000           17,000           31,000
Emerging Market Equity Fund                  N/A                N/A                N/A              N/A              N/A
Real Estate Securities Fund/2/               N/A                N/A                N/A              N/A              N/A
</TABLE>

The table above reflects amounts expended by Goldman Sachs, which amounts are in
excess of the compensation received by Goldman Sachs under the Class A Plans.
The payments under the Class A Plan were used by Goldman Sachs to compensate it
for the expenses shown above on a pro-rata basis.

___________________

/1/ For the period presented, Goldman Sachs did not impose the 0.25% 12b-1 fee
for these Funds. As no distribution expenses were incurred during this period
for these Funds, no expenses are reflected above.

/2/ Not Operational.

                                     B-99
<PAGE>
 
          For the fiscal years and periods indicated below, Goldman Sachs
received service fees from the Fund pursuant to the service Plans then in
existence at the rate of 0.25% of each Fund's average daily net assets
attributable to Class A, Class B, or Class C Shares, which totaled:

<TABLE>
<CAPTION>
                                                     Class A                          Class B            Class C         
                                        ----------------------------------      --------------------     -------        
                                           1998        1997       1996/1/         1998      1997/2/       1998          
                                        ==========  ==========  ==========      ========  ==========     =======        
<S>                                     <C>         <C>         <C>             <C>       <C>            <C>            
Balanced Fund                           $  301,397  $  153,392  $   64,145      $ 24,856  $ 1,294        $ 4,430         
Growth and Income Fund                   2,324,970   1,252,257     603,426       372,604    9,358         19,181         
CORE Large Cap Value Fund/3/                   N/A         N/A         N/A           N/A      N/A            N/A         
CORE U.S. Equity Fund                      771,451     432,457     182,881        88,342   12,169          4,871        
CORE Large Cap Growth Fund/3/               61,924         N/A         N/A        11,444      N/A          2,293        
CORE Small Cap Equity Fund/3/                6,898         N/A         N/A         6,688      N/A          1,346        
CORE International Equity Fund/3/            2,748         N/A         N/A         1,900      N/A          1,040        
Capital Growth Fund                      2,678,370   2,171,462   1,563,448        42,465    2,854          3,202        
Mid Cap Equity Fund                         67,485         N/A         N/A        15,862      N/A          3,499        
International Equity Fund                1,632,745   1,071,755     470,027       104,859   14,733          2,496        
Small Cap Value Fund                       727,298     569,684     458,857        53,536    2,992          4,052        
European Equity Fund/3/                        N/A         N/A         N/A           N/A      N/A            N/A        
Japanese Equity Fund/3/                        N/A         N/A         N/A           N/A      N/A            N/A        
International Small Cap Fund/3/                N/A         N/A         N/A           N/A      N/A            N/A        
Emerging Market Equity Fund/3/               3,424         N/A         N/A            13      N/A             10        
Asia Growth Fund                           513,560     626,724     276,754         9,517    3,410            951        
Real Estate Securities Fund/3/                 N/A         N/A         N/A           N/A      N/A            N/A         
</TABLE> 

- -------------------
/1/ For the period commencing June 1, 1995.

/2/ For the period commencing May 1, 1996.

/3/ The CORE Large Cap Value, CORE Large Cap Growth, CORE Small Equity, CORE
International Equity, European Equity, Japanese Equity, International Small Cap,
Emerging Markets Equity and Real Estate Securities Funds commenced operations on
December 15, 1998, May 1, 1997, August 15, 1997, August 15, 1997, October 1,
1998, May 1, 1998, May 1, 1998, December 15, 1997 and July 27, 1998,
respectively.

                                     B-100
<PAGE>
 
   OTHER INFORMATION REGARDING MAXIMUM SALES CHARGE, PURCHASES, REDEMPTIONS,
                            EXCHANGES AND DIVIDENDS
           (CLASS A SHARES, CLASS B SHARES AND CLASS C SHARES ONLY)

MAXIMUM SALES CHARGES
- ---------------------

          Class A Shares of each Fund are sold at a maximum sales charge of
5.5%. Using the initial offering price per share, as of July 31, 1998 and $10.00
for the CORE Large Cap Value, Real Estate Securities and European Equity Funds,
the maximum offering price of each Fund's Class A shares would be as follows:

<TABLE>
<CAPTION>
                                                       Maximum   Offering 
                                         Net Asset      Sales    Price to
                                           Value       Charge     Public 
                                        -----------    -------   -------- 
<S>                                     <C>            <C>       <C>
Balanced Fund                             $20.29        5.5%      $21.47 
Growth and Income Fund                     25.93        5.5%       27.44 
CORE U.S. Equity Fund                      26.59        5.5%       28.14 
CORE Large Cap Value Fund                  10.00        5.5%       10.55 
CORE Large Cap Growth Fund                 11.97        5.5%       12.67 
CORE Small Cap Equity Fund                 10.59        5.5%       11.21 
CORE International Equity Fund              9.22        5.5%        9.76 
Capital Growth Fund                        18.48        5.5%       19.56 
Mid Cap Equity Fund                        21.61        5.5%       22.87 
International Equity Fund                  19.85        5.5%       21.01 
Small Cap Value Fund                       24.05        5.5%       25.45 
European Equity Fund                       10.00        5.5%       10.55 
Japanese Equity Fund                       10.09        5.5%       10.68 
International Small Cap Fund               10.62        5.5%       11.24 
Emerging Market Equity Fund                 9.69        5.5%       10.25 
Asia Growth Fund                            8.38        5.5%        8.87 
Real Estate Securities Fund                10.00        5.5%       10.55 
</TABLE>

The following information supplements the information in the Prospectus under
the captions "How to Invest," "How to Sell Shares of the Funds" and "Dividends."
Please see the Prospectus for more complete information.

OTHER PURCHASE INFORMATION
- --------------------------

If shares of a Fund are held in a "street name" account with an Authorized
Dealer, all recordkeeping, transaction processing and payments of distributions
relating to the beneficial owner's account will be performed by the Authorized
Dealer, and not by the Fund and its Transfer Agent. Since the Funds will have no
record of the beneficial owner's transactions, a beneficial owner should contact
the Authorized Dealer to purchase, redeem or exchange shares, to make 

                                     B-101
<PAGE>
 
changes in or give instructions concerning the account or to obtain information
about the account. The transfer of shares in a "street name" account to an
account with another dealer or to an account directly with the Fund involves
special procedures and will require the beneficial owner to obtain historical
purchase information about the shares in the account from the Authorized Dealer.

RIGHT OF ACCUMULATION (CLASS A)
- -------------------------------

A Class A shareholder qualifies for cumulative quantity discounts if the current
purchase price of the new investment plus the shareholder's current holdings of
existing Class A Shares (acquired by purchase or exchange) of the Funds and
Class A Shares of any other Goldman Sachs Fund (as defined in the Prospectus)
total the requisite amount for receiving a discount. For example, if a
shareholder owns shares with a current market value of $35,000 and purchases
additional Class A Shares of any Fund with a purchase price of $25,000, the
sales charge for the $25,000 purchase would be 4.75% (the rate applicable to a
single purchase of more than $50,000). Class A Shares purchased without the
imposition of a sales charge may not be aggregated with Class A Shares purchased
subject to a sales charge. Class A Shares of the Funds and any other Goldman
Sachs Fund purchased (i) by an individual, his spouse and his children, and (ii)
by a trustee, guardian or other fiduciary of a single trust estate or a single
fiduciary account, will be combined for the purpose of determining whether a
purchase will qualify for such right of accumulation and, if qualifying, the
applicable sales charge level. For purposes of applying the right of
accumulation, shares of the Funds and any other Goldman Sachs Fund purchased by
an existing client of the Private Client Services Division of Goldman Sachs will
be combined with Class A Shares held by any other Private Client Services
account. In addition, Class A Shares of the Funds and Class A Shares of any
other Goldman Sachs Fund purchased by partners, directors, officers or employees
of the same business organization, groups of individuals represented by and
investing on the recommendation of the same accounting firm, certain affinity
groups or other similar organizations (collectively, "eligible persons") may be
combined for the purpose of determining whether a purchase will qualify for the
right of accumulation and, if qualifying, the applicable sales charge level.
This right of accumulation is subject to the following conditions: (i) the
business organization's, group's or firm's agreement to cooperate in the
offering of the Funds' shares to eligible persons; and (ii) notification to the
Funds at the time of purchase that the investor is eligible for this right of
accumulation. In addition, in connection with SIMPLE IRA accounts, cumulative
quantity discounts are available on a per plan basis if (1) your employee has
been assigned a cumulative discount number by Goldman Sachs, and (2) your
account, alone or in combination with the accounts of other plan participants
also invested in Class A Shares of the Goldman Sachs Funds, totals the requisite
aggregate amount as described in the Prospectus.

                                     B-102
<PAGE>
 
STATEMENT OF INTENTION (CLASS A)
- --------------------------------

If a shareholder anticipates purchasing at least $50,000 of Class A Shares of a
Fund alone or in combination with Class A shares of any other Goldman Sachs Fund
within a 13-month period, the shareholder may purchase shares of the Fund at a
reduced sales charge by submitting a Statement of Intention (the "Statement").
Shares purchased pursuant to a Statement will be eligible for the same sales
charge discount that would have been available if all of the purchases had been
made at the same time. The shareholder or his Authorized Dealer must inform
Goldman Sachs that the Statement is in effect each time shares are purchased.
There is no obligation to purchase the full amount of shares indicated in the
Statement. A shareholder may include the value of all Class A Shares on which a
sales charge has previously been paid as an "accumulation credit" toward the
completion of the Statement, but a price readjustment will be made only on Class
A Shares purchased within ninety (90) days before submitting the Statement. The
Statement authorizes the Transfer Agent to hold in escrow a sufficient number of
shares which can be redeemed to make up any difference in the sales charge on
the amount actually invested. For purposes of satisfying the amount specified on
the Statement, the gross amount of each investment, exclusive of any
appreciation on shares previously purchased, will be taken into account.

CROSS-REINVESTMENT OF DIVIDENDS AND DISTRIBUTIONS
- -------------------------------------------------

A Fund shareholder should obtain and read the prospectus relating to any other
Fund, Goldman Sachs Fund or ILA Portfolio (as defined in the Prospectus) and its
shares or units and consider its investment objective, policies and applicable
fees before electing cross-reinvestment into that Fund or Portfolio. The
election to cross-reinvest dividends and capital gain distributions will not
affect the tax treatment of such dividends and distributions, which will be
treated as received by the shareholder and then used to purchase shares of the
acquired fund. Such reinvestment of dividends and distributions in shares of
other Goldman Sachs Funds or in units of ILA Portfolios is available only in
states where such reinvestment may legally be made.

AUTOMATIC EXCHANGE PROGRAM
- --------------------------

A Fund shareholder may elect to exchange automatically a specified dollar amount
of shares of a Fund into an identical account of another Fund or an account
registered in a different name or with a different address, social security or
other taxpayer identification number, provided that the account in the acquired
fund has been established, appropriate signatures have been obtained and the
minimum initial investment requirement has been satisfied. A Fund shareholder
should obtain and read the prospectus relating to any other Goldman Sachs Fund
and its shares and consider its investment objective, policies and applicable
fees and expenses before electing an automatic exchange into that Goldman Sachs
Fund.

SYSTEMATIC WITHDRAWAL PLAN
- --------------------------

A systematic withdrawal plan (the "Systematic Withdrawal Plan") is available to
shareholders of a Fund whose shares are worth at least $5,000. The Systematic
Withdrawal Plan provides for monthly payments to the participating shareholder
of any amount not less than $50.

                                     B-103
<PAGE>
 
Dividends and capital gain distributions on shares held under the Systematic
Withdrawal Plan are reinvested in additional full and fractional shares of the
applicable Fund at net asset value. The Transfer Agent acts as agent for the
shareholder in redeeming sufficient full and fractional shares to provide the
amount of the systematic withdrawal payment. The Systematic Withdrawal Plan may
be terminated at any time. Goldman Sachs reserves the right to initiate a fee of
up to $5 per withdrawal, upon thirty (30) days written notice to the
shareholder. Withdrawal payments should not be considered to be dividends, yield
or income. If periodic withdrawals continuously exceed new purchases and
reinvested dividends and capital gains distributions, the shareholder's original
investment will be correspondingly reduced and ultimately exhausted. The
maintenance of a withdrawal plan concurrently with purchases of additional Class
A, Class B or Class C Shares would be disadvantageous because of the sales
charge imposed on purchases of Class A Shares or the imposition of a CDSC on
redemptions of Class A, Class B or Class C Shares. The CDSC applicable to Class
A, Class B or Class C Shares redeemed under a systematic withdrawal plan may be
waived. See "How to Invest -- Waiver or Reduction of Continent Deferred Sales
Charge" in the Prospectus. In addition, each withdrawal constitutes a redemption
of shares, and any gain or loss realized must be reported for federal and state
income tax purposes. A shareholder should consult his or her own tax adviser
with regard to the tax consequences of participating in the Systematic
Withdrawal Plan. For further information or to request a Systematic Withdrawal
Plan, please write or call the Transfer Agent.

                                     B-104
<PAGE>
 
                                 SERVICE PLAN
                             (SERVICE SHARES ONLY)

The Funds have adopted a service plan (the "Plan") with respect to its Service
Shares which authorizes it to compensate Service Organizations for providing
certain administration services and personal and account maintenance services to
their customers who are or may become beneficial owners of such Shares. Pursuant
to the Plan, each Fund enters into agreements with Service Organizations which
purchase Service Shares of the Fund on behalf of their customers ("Service
Agreements"). Under such Service Agreements the Service Organizations may
perform some or all of the following services: (a) act, directly or through an
agent, as the sole shareholder of record and nominee for all customers, (b)
maintain account records for each customer who beneficially owns Service Shares
of a Fund, (c) answer questions and handle correspondence from customers
regarding their accounts, (d) process customer orders to purchase, redeem and
exchange Service Shares of a Fund, and handle the transmission of funds
representing the customers' purchase price or redemption proceeds, (e) issue
confirmations for transactions in shares by customers, (f) provide facilities to
answer questions from prospective and existing investors about Service Shares of
a Fund, (g) receive and answer investor correspondence, including requests for
prospectuses and statements of additional information, (h) display and make
prospectuses available on the Service Organization's premises, (i) assist
customers in completing application forms, selecting dividend and other account
options and opening custody accounts with the Service Organization and (j) act
as liaison between customers and a Fund, including obtaining information from
the Fund, working with the Fund to correct errors and resolve problems and
providing statistical and other information to a Fund. As compensation for such
services, each Fund will pay each Service Organization a service fee in an
amount up to 0.50% (on an annualized basis) of the average daily net assets of
the Service Shares of such Fund attributable to or held in the name of such
Service Organization.

The Funds have adopted the Plan pursuant to Rule 12b-1 under the Act in order to
avoid any possibility that payments to the Service Organizations pursuant to the
Service Agreements might violate the Act. Rule 12b-1, which was adopted by the
SEC under the Act, regulates the circumstances under which an investment company
or series thereof may bear expenses associated with the distribution of its
shares. In particular, such an investment company or series thereof cannot
engage directly or indirectly in financing any activity which is primarily
intended to result in the sale of shares issued by the company unless it has
adopted a plan pursuant to, and complies with the other requirements of, such
Rule. The Trust believes that fees paid for the services provided in the Plan
and described above are not expenses incurred primarily for effecting the
distribution of Service Shares. However, should such payments be deemed by a
court or the SEC to be distribution expenses, such payments would be duly
authorized by the Plan.

The Glass-Steagall Act prohibits all entities which receive deposits from
engaging to any extent in the business of issuing, underwriting, selling or
distributing securities, although institutions such as national banks are
permitted to purchase and sell securities upon the order and for the account of
their customers. In addition, under some state securities laws, banks and other
financial institutions purchasing Service Shares on behalf of their customers
may be required to register as dealers. Should future legislative or
administrative action or judicial or administrative decisions or

                                     B-105
<PAGE>
 
interpretations prohibit or restrict the activities of one or more of the
Service Organizations in connection with a Fund, such Service Organizations
might be required to alter materially or discontinue the services performed
under their Service Agreements. If one or more of the Service Organizations were
restricted from effecting purchases or sales of Service Shares automatically
pursuant to pre-authorized instructions, for example, effecting such
transactions on a manual basis might affect the size and/or growth of a Fund.
Any such alteration or discontinuance of services could require the Board of
Trustees to consider changing a Fund's method of operations or providing
alternative means of offering Service Shares of the Fund to customers of such
Service Organizations, in which case the operation of such Fund, its size and/or
its growth might be significantly altered. It is not anticipated, however, that
any alteration of a Fund's operations would have any effect on the net asset
value per share or result in financial losses to any shareholder.

Conflict of interest restrictions (including the Employee Retirement Income
Security Act of 1974) may apply to a Service Organization's receipt of
compensation paid by a Fund in connection with the investment of fiduciary
assets in Service Shares of a Fund. Service Organizations, including banks
regulated by the Comptroller of the Currency, the Federal Reserve Board or the
Federal Deposit Insurance Corporation, and investment advisers and other money
managers subject to the jurisdiction of the SEC, the Department of Labor or
state securities commissions, are urged to consult legal advisers before
investing fiduciary assets in Service Shares of a Fund. In addition, under some
state securities laws, banks and other financial institutions purchasing Service
Shares on behalf of their customers may be required to register as dealers.

The Trustees, including a majority of the Trustees who are not interested
persons of the Trust and who have no direct or indirect financial interest in
the operation of the Plan or the related Service Agreements, most recently voted
to approve the Plan and related Service Agreements at a meeting called for the
purpose of voting on such Plan and Service Agreements on April 22, 1998. The
Plan and related Service Agreements will remain in effect until May 1, 1999 and
will continue in effect thereafter only if such continuance is specifically
approved annually by a vote of the Trustees in the manner described above. The
Plan may not be amended to increase materially the amount to be spent for the
services described therein without approval of the Service Shareholders of the
affected Fund and all material amendments of the Plan must also be approved by
the Trustees in the manner described above. The Plan may be terminated at any
time by a majority of the Trustees as described above or by a vote of a majority
of the outstanding Service Shares of the affected Fund. The Service Agreements
may be terminated at any time, without payment of any penalty, by vote of a
majority of the Trustees as described above or by a vote of a majority of the
outstanding Service Shares of the affected Fund on not more than sixty (60)
days' written notice to any other party to the Service Agreements. The Service
Agreements will terminate automatically if assigned. So long as the Plan is in
effect, the selection and nomination of those Trustees who are not interested
persons will be committed to the discretion of the non-interested Trustees. The
Trustees have determined that, in its judgment, there is a reasonable likelihood
that the Plans will benefit the Funds and the holders of Service Shares of the
Funds. In the Trustees' quarterly review of the Plan and related Service
Agreements, the Board will consider their continued appropriateness and the
level of compensation provided therein.

                                     B-106
<PAGE>
 
                                  APPENDIX A

                          DESCRIPTION OF BOND RATINGS*

                        MOODY'S INVESTORS SERVICE, 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 edged." 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.

__________________________

*         THE RATING SYSTEMS DESCRIBED HEREIN ARE BELIEVED TO BE THE MOST RECENT
          RATING SYSTEMS AVAILABLE FROM MOODY'S INVESTORS SERVICE, INC. AND
          STANDARD AND POOR'S RATINGS GROUP AT THE DATE OF THIS ADDITIONAL
          STATEMENT FOR THE SECURITIES LISTED. RATINGS ARE GENERALLY GIVEN TO
          SECURITIES AT THE TIMES OF ISSUANCE. WHILE THE RATING AGENCIES MAY
          FROM TIME TO TIME REVISE SUCH RATINGS, THEY UNDERTAKE NO OBLIGATION TO
          DO SO, AND THE RATINGS INDICATED DO NOT NECESSARILY REPRESENT RATINGS
          WHICH WILL BE GIVEN TO THESE SECURITIES ON THE DATE OF THE FUND'S
          FISCAL YEAR END.

                                      1-A
<PAGE>
 
          B:  Bonds which are rated B generally lack characteristics of
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 which
may be in default, and issues so rated can be regarded as having extremely poor
prospects of ever attaining any real investment standing.

          UNRATED:  Where no rating has been assigned or where a rating has been
suspended or withdrawn, it may be for reasons unrelated to the quality of the
issue.

          Should no rating be assigned, the reason may be one of the following:

          1.  An application for rating was not received or accepted.

          2.  The issue or issuer belongs to a group of securities or companies
              that are not rated as a matter of policy.

          3.  There is a lack of essential data pertaining to the issue or
              issuer.

          4.  The issue was privately placed, in which case the rating is not
              published in Moody's publications.

          Suspension or withdrawal may occur if new and material circumstances
arise, the effects of which preclude satisfactory analysis; if there is no
longer available reasonable up-to-date data to permit a judgment to be formed;
if a bond is called for redemption; or for other reasons.

          NOTE:  Those bonds in the Aa, A, Baa, Ba and B groups which Moody's
believes possess the strongest investment attributes are designated by the
symbols Aa1, A1, Baa1, Ba1 and B1.

          Moody's also provides credit ratings for commercial paper.  These are
promissory obligations (1) not having an original maturity in excess of one
year, unless explicitly noted.

                 Description of Ratings of State and Municipal
                               Commercial Paper
              ---------------------------------------------------

          Moody's commercial paper ratings are opinions of the ability of
issuers to repay punctually senior debt obligations which have an original
maturity in excess of nine months.  Moody's three highest commercial paper
rating categories are as follows:

                                      2-A
<PAGE>
 
          PRIME 1:  Issuers rated Prime-1 (or supporting institutions) have a
          superior ability for repayment of senior short-term debt obligations.
          Prime-1 repayment ability will often be evidenced by many of the
          following characteristics:

                -  Leading market positions in well established industries.

                -  High rates of return on funds employed.

                -  Conservative capitalization structures with moderate reliance
                   on debt and ample asset protection.

                -  Broad margins in earnings coverage of fixed financial charges
                   and high internal cash generation.

                -  Well established access to a range of financial markets and
                   assured sources of alternate liquidity.

          PRIME-2: Issuers rated Prime-2 (or supporting institutions) have a
          strong ability for repayment of senior short-term debt obligations.
          This will normally be evidenced by many of the characteristics cited
          above but to a lesser degree. Earnings trends and coverage ratios,
          while sound, may be more subject to variation. Capitalized
          characteristics, while still appropriate, may be more affected by
          external conditions. Ample alternate liquidity is maintained.

          PRIME-3:  Issuers rated Prime-3 (or supporting institutions) have an
          acceptable ability for repayment of senior short-term obligations. The
          effect of industry characteristics and market compositions may be more
          pronounced. Variability in earnings and profitability may result in
          changes in the level of debt protection measurements and may require
          relatively high financial leverage. Adequate alternate liquidity is
          maintained.


                        STANDARD & POOR'S RATINGS GROUP

          AAA: Bonds and debt rated AAA have the highest rating assigned by
Standard & Poor's.  Capacity to meet the financial commitment on the obligation
is extremely strong.

          AA:  Bonds and debt rated AA have a very strong capacity to meet the
financial commitment on the obligation and differ from the higher rated issues
only in small degree.

          A:   Bonds and debt rated  A have a strong capacity to meet the
financial commitment on the obligation although they are somewhat more
susceptible to the adverse effects of changes in circumstances and economic
conditions than bonds in  higher rated categories.

                                      3-A
<PAGE>
 
          BBB: Bonds and debt rated BBB are regarded as having an adequate
capacity to meet the financial commitment on the obligation.  Whereas they
normally exhibit adequate protection parameters, adverse economic conditions or
changing circumstances are more likely to lead to a weakened capacity of the
obligor.

          BB, B, CCC, CC, C:  Bonds and debt rated BB, B, CCC, CC and C are
regarded as having significant speculative characteristics with respect to the
capacity to meet the financial commitment on the obligation.  BB indicates the
least degree of speculation and C the highest.  While such bonds will likely
have some quality and protective characteristics, these are outweighed by large
uncertainties of major risk exposures to adverse conditions.

          BB:  Bonds and debt rated BB have less vulnerability to nonpayment
than other speculative issues.  However, such securities face major ongoing
uncertainties or exposure to adverse business, financial, or economic conditions
which could lead to the obligor's inadequate capacity to meet the financial
commitment on the obligation.

          B:   Bonds and debt rated B are more vulnerable to non-payment but the
obligor currently has the capacity to meet its financial commitment on the
obligation.  Adverse business, financial or economic conditions will likely
impair capacity or willingness to meet its financial commitment on the
obligation.

          CCC: Bonds and debt rated CCC are currently vulnerable to non-
payment, and are dependent upon favorable business, financial, and economic
conditions to meet their financial commitment on the obligation.  In the event
of adverse business, financial, or economic conditions, such securities are not
likely to have the capacity to meet their financial commitment on the
obligation.

          CC:  The rating CC is typically applied to bonds and debt that are
currently highly vulnerable to non-payment.

          C:   The C rating may be used to cover a situation where a bankruptcy
petition has been filed or similar action has been taken, but debt service
payments on this obligation are continued.

          D:   Bonds and debt rated D are in payment default.  The D rating
category is used when payments on an obligation are not made on the date due
even if the applicable grace period has not expired, unless Standard & Poor's
believes that such payments will be made during such grace period.  The D rating
also will be used upon the filing of a bankruptcy petition if debt service
payments are jeopardized.

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

          R:   This rating is attached to highlight derivative, hybrid, and
certain other obligations that Standard & Poor's believes may experience high
volatility or high variability in expected returns due to non-credit risks.
Examples of such obligations are: securities whose principal or 

                                      4-A
<PAGE>
 
interest return is indexed to equities, commodities, or currencies, certain
swaps and options; and interest-only and principal-only mortgage securities. The
absence of an "r" symbol should not be taken as an indication that an obligation
will exhibit no volatility or variability in total return.

                        STANDARD & POOR'S RATINGS GROUP

          A Standard & Poor's commercial paper rating is a current assessment of
the likelihood of timely payment of debt having an original maturity of no more
than 365 days. Standard & Poor's commercial paper rating categories are as
follows:

          A-1  Obligations are rated in the highest category indicating that the
obligor's capacity to meet its financial commitment is strong.  Within this
category, certain obligations are designated with a plus sign (+).  This
indicates that the obligor's capacity to meet its financial commitment on these
obligations is extremely strong.

          A-2  Obligations are somewhat more susceptible to the adverse effects
of changes in circumstances and economic conditions than obligations rated "A-
1".  However, the obligor's capacity to meet its financial commitment on the
obligation is satisfactory.

          A-3  Obligations exhibit adequate protection parameters.  However,
adverse economic conditions or changing circumstances are more likely to lead to
a weakened capacity of the obligor to meet its financial commitment on the
obligation.

          B-   Obligations are regarded as having significant speculative
characteristics.  The obligor currently has the  capacity to meet its financial
commitment on the obligation; however, it faces major ongoing uncertainties
which could lead to the obligor's inadequate capacity to meet its financial
commitment on the obligation.

          C-   Obligations are currently vulnerable to nonpayment and are
dependent on favorable business, financial, and economic conditions for the
obligor to meet its financial obligation.

          D-   Obligations are in payment default.  The "D" rating category is
used when payments on an obligation are not made on the date due, even if the
applicable grace period has not expired, unless Standard & Poor's believes such
payments will be made during such grace period.  The "D" rating will also be
used upon the filing of a bankruptcy petition or the taking of a similar action
if payments on an obligation are jeopardized.

                               FITCH IBCA, INC.

Bond Ratings
- ------------

          The ratings represent Fitch's assessment of the issuer's ability to
meet the obligations of a specific debt issue or class of debt.  The ratings
take into consideration special features of the issue, its relationship to other
obligations of the issuer, the current financial condition and operative

                                      5-A
<PAGE>
 
performance of the issuer and of any guarantor, as well as the political and
economic environment that might affect the issuer's future financial strength
and credit quality.

          AAA: Bonds rated AAA are considered to be investment grade and of the
highest credit quality.  The obligor has an exceptionally strong capacity for
timely payment of financial commitments, which is unlikely to be adversely
affected by reasonably foreseeable events.

          AA:  Bonds rated AA are considered to be investment grade and of very
high credit quality.  These ratings denote a very low expectation of investment
risk and indicate very strong capacity for timely payment of financial
commitments.  This capacity is not significantly vulnerable to foreseeable
events.

          A:   Bonds rated A are considered to be investment grade and of high
credit quality.  These ratings denote a low expectation of investment risk and
indicate strong capacity of timely payment of financial commitments.

          BBB: Bonds rated BBB are considered to be investment grade and of
good credit quality.  These ratings denote that there is currently a low
expectation of investment risk.  The capacity for timely payment of financial
commitments is adequate, but adverse circumstances  and in economic conditions
are more likely to impair this category.

          BB:  Bonds are considered to be speculative.  These ratings indicate
that there is a possibility of credit risk developing, particularly as the
result of adverse economic changes over time; however, business or financial
alternatives may be available to allow financial commitments to be met.
Securities rated in this category are not investment grade.

          B:   Bonds are considered highly speculative.  These ratings indicate
that significant credit risk is present, but a limited margin of safety remains.
Financial commitments are currently being met; however, capacity for continued
payment is contingent upon a sustained, favorable business and economic
environment.

          CCC: Bonds have certain identifiable characteristics that, if not
remedied, may lead to default.  The ability to meet obligations requires an
advantageous business and economic environment.

          CC:  Bonds are minimally protected. Default in payment of interest
and/or principal seems probable over time.

          C:   Bonds are in imminent default in payment of interest or
principal.

          DDD, DD, AND D:  Bonds are in default on interest and/or principal
payments.  Such bonds are extremely speculative and should be valued on the
basis of their ultimate recovery value in liquidation or reorganization of the
obligor.  DDD represents the highest potential for recovery on these bonds, and
D represents the lowest potential for recovery.

                                      6-A
<PAGE>
 
          PLUS (+) AND MINUS (-) signs are used with a rating symbol to indicate
the relative position of a credit within the rating category.  The Fitch IBCA
ratings from and including "AA" to "B" may be modified by the addition of a plus
or minus sign.

Investment Grade Short-Term Ratings
- -----------------------------------

          Fitch IBCA's short-term ratings apply to debt obligations that have
time horizons of less than 12 months for most obligations or up to three years
for U.S. public finance securities.

F 1:           Highest Credit Quality. Issues assigned this rating reflect the
               strongest capacity for timely payment of financial commitments;
               may have an added "+" to denote any exceptionally strong credit
               feature.

F 2:           Good Credit Quality. Issues assigned this rating have a
               satisfactory capacity for timely payment of financial
               commitments, but the margin of safety is not as great as for
               issues assigned F 1 ratings.

F 3:           Fair Credit Quality. Issues assigned this rating have
               characteristics suggesting that the degree of capacity for timely
               payment of financial commitments is adequate; however, near-term
               adverse changes could result in a reduction to non-investment
               grade.

B:             Securities possess speculative credit quality. This designation
               indicates minimal capacity for timely payment of financial
               commitments, plus vulnerability to near-term adverse changes in
               financial and economic conditions.

C:             Securities possess high default risk. This designation indicates
               that the capacity for meeting financial commitments is solely
               reliant upon a sustained, favorable business and economic
               environment.

D:             Default. Issues assigned this rating are in actual or imminent
               payment default.

LOC:           The symbol LOC indicates that the rating is based on a letter of
               credit issued by a commercial bank.

                                 DUFF & PHELPS
                                 -------------
                                        
Long Term Debt and Preferred Stock
- ----------------------------------

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

          AA+, AA, AA-:  High credit quality.  Protection  factors are strong.
Risk is modest but may vary slightly from time to time because of economic
conditions.  However, risk factors are more variable and greater in periods of
economic stress.

                                      7-A
<PAGE>
 
          A+, A, A-:  Debt possesses protection factors which are average but
adequate. However, risk factors are more variable and greater in periods of
economic stress.

          BBB+, BBB, BBB-:  Below average protection factors but still
considered sufficient for prudent investment.  Considerable variability in risk
during economic cycles.

          BB+, BB, BB-:  Below investment grade but deemed likely to meet
obligations when due.  Present or prospective financial protection factors
fluctuate according to industry conditions or company fortunes.  Overall quality
may move up or down frequently within this category.

          B+, B, B-:  Below investment  grade and possessing risk that
obligations will not be met when due.  Financial protection factors will
fluctuate widely according to economic cycles, industry conditions and/or
company fortunes.  Potential exists for frequent changes in the rating within
this category or into a higher or lower rating grade.

          CCC:  Well below investment grade securities.  Considerable
uncertainty exists as to timely payment of principal, interest or preferred
dividends.  Protection factors are narrow and risk can be substantial with
unfavorable economic/industry conditions, and/or with unfavorable company
developments.

          D:  Defaulted debt obligation.

Commercial Paper/Certificates of Deposits
- -----------------------------------------

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

D-1:           Very high certainty of timely payment. Liquidity factors are
               excellent and supported by good fundamental protection factors.
               Risk factors are minor.

D-1-:          High certainty of timely payment. Liquidity factors are strong
               and supported by good fundamental protection factors. Risk
               factors are very small.

D-2:           Good certainty of timely payment. Liquidity factors and company
               fundamentals are sound. Although ongoing funding needs may
               enlarge total financing requirements, access to capital markets
               is good. Risk factors are small.

D-3:           Satisfactory liquidity and other protection factors qualify
               issues as investment grade. Risk factors are larger and subject
               to more variation. Nevertheless, timely payment is expected.

                                      8-A
<PAGE>
 
D-4:           Speculative investment characteristics. Liquidity is not
               sufficient to insure against disruption in debt service.
               Operating factors and market access may be subject to a high
               degree of variation.

D-5:           Issuer failed to meet scheduled principal and/or interest
               payments.

NOTES:         Bonds which are unrated may expose the investor to risks with
               respect to capacity to pay interest or repay principal which are
               similar to the risks of lower-rated bonds. The Fund is dependent
               on the Investment Adviser's judgment, analysis and experience in
               the evaluation of such bonds.

               Investors should note that the assignment of a rating to a bond
               by a rating service may not reflect the effect of recent
               developments on the issuer's ability to make interest and
               principal payments.

Description of Ratings of State and Municipal Notes
- ---------------------------------------------------

MOODY'S INVESTORS SERVICE, INC.

          Moody's ratings for state and municipal short-term obligations  will
be designated Moody's Investment Grade ("MIG") and variable rate demand
obligations are designated Variable Moody's Investment Grade ("VMIG").  Such
ratings recognize the differences between short-term credit risk and long-term
risk.  Symbols used will be as follows:

          MIG-1/VMIG-1:  This designation denotes best quality enjoying strong
protection by established cash flows, superior liquidity support or demonstrated
broad based access to the market for refinancing.

          MIG-2/VMIG-2:  This designation denotes high quality.  Margins of
protection are ample although not so large as in the preceding group.

          MIG-3/VMIG-3:  This designation denotes favorable quality.  All
security elements are accounted for but there is lacking the undeniable strength
of the preceding grades.  Liquidity and cash flow protection may be narrow and
market access for refinancing is likely to be less well established.

          MIG-4/VMIG-4:  This designation denotes adequate quality carrying
specific risk but having protection commonly regarded as required of an
investment security and not distinctly or predominantly speculative.

          SG:  This designation denotes speculative quality.  Debt instruments
in this category lack margins of protection.

                                      9-A
<PAGE>
 
STANDARD & POOR'S RATINGS GROUP

          A Standard and Poor's note rating reflects the liquidity concerns and
market access risks unique to notes.  Notes due in three years or less will
likely receive a note rating.

          Note rating symbols are as follows:

SP-1:          Strong capacity to pay principal and interest. Those issues
               determined to possess very strong characteristics will be given a
               plus (+) designation.

SP-2:          Satisfactory capacity to pay principal and interest with some
               vulnerability to adverse financial and economic changes over the
               term of the notes.

SP-3:          Speculative capacity to pay principal and interest.

                                     10-A
<PAGE>
 
APPENDIX B

BUSINESS PRINCIPLES OF GOLDMAN, SACHS & CO.

          Goldman Sachs is noted for its Business Principles, which guide all of
the firm's activities and serve as the basis for its distinguished reputation
among investors worldwide.

          OUR CLIENT'S INTERESTS ALWAYS COME FIRST.  Our experience shows that
if we serve our clients well, our own success will follow.

          OUR ASSETS ARE OUR PEOPLE, CAPITAL AND REPUTATION.  If any of these
assets diminish, reputation is the most difficult to restore.  We are dedicated
to complying fully with the letter and spirit of the laws, rules and ethical
principles that govern us. Our continued success depends upon unswerving
adherence to this standard.

          WE TAKE GREAT PRIDE IN THE PROFESSIONAL QUALITY OF OUR WORK. We have
an uncompromising determination to achieve excellence in everything we
undertake.  Though we may be involved in a wide variety and heavy volume of
activity, we would, if it came to a choice, rather be best than biggest.

          WE STRESS CREATIVITY AND IMAGINATION IN EVERYTHING WE DO. While
recognizing that the old way may still be the best way, we constantly strive to
find a better solution to a client's problems.  We pride ourselves on having
pioneered many of the practices and techniques that have become standard in the
industry.

          WE MAKE AN UNUSUAL EFFORT TO IDENTIFY AND RECRUIT THE VERY BEST PERSON
FOR EVERY JOB.  Although our activities are measured in billions of dollars, we
select our people one by one.  In a service business, we know that without the
best people, we cannot be the best firm.

          WE OFFER OUR PEOPLE THE OPPORTUNITY TO MOVE AHEAD MORE RAPIDLY THAN IS
POSSIBLE AT MOST OTHER PLACES.  We have yet to find limits to the responsibility
that our best people are able to assume.  Advancement depends solely on ability,
performance and contribution to the Firm's success, without regard to race,
color, religion, sex, age, national origin, disability, sexual orientation, or
any impermissible criterion or circumstance.

          WE STRESS TEAMWORK IN EVERYTHING WE DO.  While individual creativity
is always encouraged, we have found that team effort often produces the best
results.  We have no room for those who put their personal interests ahead of
the interests of the Firm and its clients.

          THE DEDICATION OF OUR PEOPLE TO THE FIRM AND THE INTENSE EFFORT THEY
GIVE THEIR JOBS ARE GREATER THAN ONE FINDS IN MOST OTHER ORGANIZATIONS.  We
think that this is an important part of our success.

          WE CONSIDER OUR SIZE AN ASSET THAT WE TRY HARD TO PRESERVE.  We want
to be big enough to undertake the largest project that any of our clients could
contemplate, yet small enough to

                                      1-B
<PAGE>
 
maintain the loyalty, the intimacy and the esprit de corps that we all
treasure and that contribute greatly to our success.

          WE CONSTANTLY STRIVE TO ANTICIPATE THE RAPIDLY CHANGING NEEDS OF OUR
CLIENTS AND TO DEVELOP NEW SERVICES TO MEET THOSE NEEDS.  We know that the world
of finance will not stand still and that complacency can lead to distinction.

          WE REGULARLY RECEIVE CONFIDENTIAL INFORMATION AS PART OF OUR NORMAL
CLIENT RELATIONSHIPS.  To breach a confidence or to use confidential information
improperly or carelessly would be unthinkable.

          OUR BUSINESS IS HIGHLY COMPETITIVE, AND WE AGGRESSIVELY SEEK TO EXPAND
OUR CLIENT RELATIONSHIPS.  However, we must always be fair competitors and must
never denigrate other firms.

          INTEGRITY AND HONESTY ARE THE HEART OF OUR BUSINESS.  We expect our
people to maintain high ethical standards in everything they do, both in their
work for the firm and in their personal lives.

     GOLDMAN, SACHS & CO.'S INVESTMENT BANKING AND SECURITIES ACTIVITIES

          Goldman, Sachs & Co. is a leading global investment banking and
securities firm with a number of distinguishing characteristics.

          Privately owned and ranked among Wall Street's best capitalized firms,
with partners' capital of approximately $6.1 billion as of November 28, 1997.

          With thirty-seven offices around the world, Goldman Sachs employs over
11,000 professionals focused on opportunities in major markets.

          The number one underwriter of all international equity issuers from
(1993-1996).

          A research budget of $200 million for 1997.

          Premier lead manager of negotiated municipal bond offerings over the
past six years (1990-1996).*

          The number one lead manager of U.S. common stock offerings for the 
past eight years (1989-1996).

____________________________
*         SOURCE: SECURITIES DATA CORPORATION. COMMON STOCK RANKING EXCLUDES 
          ====================================        
          REITS, INVESTMENT TRUSTS AND RIGHTS.

                                      2-B
<PAGE>
 
          The number one lead manager for initial public offerings (IPOs) 
worldwide (1989-1996).

                                      3-B
<PAGE>
 
GOLDMAN, SACHS & CO.'S HISTORY OF EXCELLENCE

1865    End of Civil War

1869    Marcus Goldman opens Goldman Sachs

1890    Dow Jones Industrial Average first published

1896    Goldman Sachs joins New York Stock Exchange

1906    Goldman Sachs takes Sears Roebuck & Co. public (longest-standing client
        relationship)
 
        Dow Jones Industrial Average tops 100
 
1925    Goldman Sachs finances Warner Brothers, producer of the first talking
        film

1956    Goldman Sachs co-manages Ford's public offering, the largest to date

1970    London office opens

1972    Dow Jones Industrial Average breaks 1000
 
1986    Goldman Sachs takes Microsoft public
 
1991    Provides advisory services for the largest privatization in the region
        of the sale of Telefonos de Mexico

1995    Dow Jones Industrial Average breaks 5000

1996    Goldman Sachs takes Deutsche Telecom public

        Dow Jones Industrial Average breaks 6000

1997    Dow Jones Industrial Average breaks 7000

        Goldman Sachs increases assets under management by 100% over 1996

                                      4-B
<PAGE>
 
                                    PART C
                               OTHER INFORMATION

ITEM 23. EXHIBITS
         --------
    
     The following exhibits relating to Goldman Sachs Trust are incorporated
herein by reference to Post-Effective Amendment No. 26 to Goldman Sachs Trust's
Registration Statement on Form N-1A (Accession No. 000950130-95-002856); to
Post-Effective Amendment No. 27 to such Registration Statement (Accession No.
0000950130-96-004931); to Post-Effective Amendment No. 29 to such Registration
Statement (Accession No. 0000950130-97-000573); to Post-Effective Amendment No.
31 to such Registration Statement (Accession No. 0000950130-97-000805); to Post-
Effective Amendment No. 32 to such Registration Statement (Accession No.
0000950130-97-0001846); to Post-Effective Amendment No. 40 to such Registration
Statement (Accession No. 0000950130-97-004495); to Post-Effective Amendment No.
41 to such Registration Statement (Accession No 0000950130-98-000676); Post-
Effective Amendment No. 43 to such Registration Statement (Accession No.
0000950130-98-000965); to Post-Effective Amendment No. 44 to such Registration
Statement (Accession No. 0000950130-98-002160); to Post-Effective Amendment No.
46 to such Registration Statement (Accession No. 0000950130-98-003563); to Post-
Effective Amendment No. 47 to such Registration Statement (Accession No.
0000950130-98-004845), to Post-Effective Amendment No. 48 to such Registration
Statement (Accession No. 0000950109-98-005275) and to Post-Effective Amendment
No. 50 to such Registration Statement (Accession No. 0000950130-98-006081).     
    
     (a)(1).   Agreement and Declaration of Trust dated January 28, 1997.
               (Accession No. 0000950130-97-000573).     
    
     (a)(2).   Amendment No. 1 dated April 24, 1997 to Agreement and Declaration
               of Trust January 28, 1997.  (Accession No. 0000950130-97-004495).
     

    
     (a)(3).   Amendment No. 2 dated July 21, 1997 to Agreement and Declaration
               of Trust, as amended, dated January 28, 1997.  (Accession No.
               0000950130-97-004495).     
    
     (a)(4).   Amendment No.3 dated October 21, 1997 to the Agreement and
               Declaration of Trust, as amended, dated January 28, 1997.
               (Accession No. 0000950130-98-000676).     

     (a)(5).   Amendment No. 4 dated January 28, 1998 to the Agreement and
               Declaration of Trust, as amended, 
<PAGE>
 
    
              dated January 28, 1997. (Accession No. 0000950130-98-000676).     
    
     (a)(6).   Amendment No. 5 dated April 23, 1998 to Agreement and Declaration
               of Trust as amended, dated January 28, 1997.  (Accession No.
               0000950130-98-004845).     
    
     (a)(7).   Amendment No. 6 dated July 22, 1998 to Agreement and Declaration
               of Trust as amended, dated January 28, 1997.  (Accession No.
               0000950130-98-004845).     

    
     (a)(8).   Amendment No. 7 dated November 3, 1998 to Agreement and
               Declaration of Trust as amended, dated January 28, 1997
               (Accession No. 0000950130-98-006081).     
    
     (b).      Amended and Restated By-laws of the Delaware business trust dated
               January 28, 1997. (Accession No. 0000950130-97-000573).     

     (c).      Not applicable.
    
     (d)(1).   Management Agreement dated April 30, 1997 between Registrant, on
               behalf of Goldman Sachs Short Duration Government Fund, and
               Goldman Sachs Funds Management, L.P.  (Accession No. 0000950130-
               98-000676).     
    
     (d)(2).   Management Agreement dated April 30, 1997 between Registrant, on
               behalf of Goldman Sachs Adjustable Rate Government Fund, and
               Goldman Sachs Funds Management, L.P.  (Accession No. 0000950130-
               98-000676).     
    
     (d)(3).   Management Agreement dated April 30, 1997 between Registrant, on
               behalf of Goldman Sachs Short Duration Tax-Free Fund, and Goldman
               Sachs Asset Management.  (Accession No. 0000950130-98-000676).
                                                                                

    
     (d)(4).   Management Agreement dated April 30, 1997 between Registrant, on
               behalf of Goldman Sachs Core Fixed Income Fund, and Goldman Sachs
               Asset Management.  (Accession No. 0000950130-98-000676).     
    
     (d)(5).   Management Agreement dated April 30, 1997 between the Registrant,
               on behalf of Goldman Sachs - Institutional Liquid Assets, and
               Goldman Sachs Asset Management.  (Accession No. 0000950130-98-
               000676).     
<PAGE>
 
     (d)(6).    Management Agreement dated April 30, 1997 as amended November 3,
                1998, between Registrant, Goldman Sachs Asset Management,
                Goldman Sachs Fund Management L.P. and Goldman, Sachs Asset
                Management International (Accession No. 0000950109-98-005275).
    
     (d)(7).    Management Agreement dated January 1, 1998 on behalf of the
                Goldman Sachs Asset Allocation Portfolios and Goldman Sachs
                Asset Management (Accession No. 0000950130-98-000676).     

     (e)(1).    Distribution Agreement dated April 30, 1997 as amended November
                3, 1998 between Registrant and Goldman, Sachs & Co. (Accession
                No. 0000950109-98-005275).

     (f).      Not applicable.
    
     (g)(1).   Custodian Agreement dated July 15, 1991, between Registrant and
               State Street Bank and Trust Company. (Accession No. 0000950130-
               95-002856).     


     (g)(2).   Custodian Agreement dated December 27, 1978 between Registrant
               and State Street Bank and Trust Company, on behalf of Goldman
               Sachs - Institutional Liquid Assets, filed as Exhibit 8(a).
               (Accession No. 0000950130-98-000965).


     (g)(3).   Letter-agreement dated December 27, 1978 between Registrant and
               State Street Bank and Trust Company, on behalf of Goldman Sachs -
               Institutional Liquid Assets, pertaining to the fees payable by
               Registrant pursuant to the Custodian Agreement, filed as Exhibit
               8(b). (Accession No. 0000950130-98-000965).


     (g)(4).   Amendment dated May 28, 1981 to the Custodian Agreement referred
               to above as Exhibit (g)(2) (Accession No. 0000950130-98-000965).


     (g)(5).   Fee schedule relating to the Custodian Agreement between
               Registrant on behalf of the Goldman Sachs Asset Allocation
               Portfolios and State Street Bank and Trust Company.  (Accession
               No. 0000950130-97-004495).


     (g)(6).   Letter Agreement dated June 14, 1984 between Registrant and State
               Street Bank and Trust Company, on behalf of Goldman Sachs -
               Institutional Liquid Assets, pertaining to a change in wire
               charges under the Custodian 
<PAGE>
 
               Agreement, filed as Exhibit 8(d).(Accession No. 0000950130-98-
               000965).




     (g)(7).   Letter Agreement dated March 29, 1983 between Registrant and
               State Street Bank and Trust Company, on behalf of Goldman Sachs -
               Institutional Liquid Assets, pertaining to the latter's
               designation of Bank of America, N.T. and S.A. as its subcustodian
               and certain other matters, filed as Exhibit 8(f). (Accession No.
               0000950130-98-000965).



     (g)(8).   Letter Agreement dated March 21, 1985 between Registrant and
               State Street Bank and Trust Company, on behalf of Goldman Sachs -
               Institutional Liquid Assets, pertaining to the creation of a
               joint repurchase agreement account, filed as Exhibit 8(g).
               (Accession No. 0000950130-98-000965).



     (g)(9).   Letter Agreement dated November 7, 1985, with attachments,
               between Registrant and State Street Bank and Trust Company, on
               behalf of Goldman Sachs - Institutional Liquid Assets,
               authorizing State Street Bank and Trust Company to permit
               redemption of units by check, filed as Exhibit 8(h). (Accession
               No. 0000950130-98-000965).



     (g)(10).  Money Transfer Services Agreement dated November 14, 1985,
               including attachment, between Registrant and State Street Bank
               and Trust Company, on behalf of Goldman Sachs - Institutional
               Liquid Assets, pertaining to transfers of funds on deposit with
               State Street Bank and Trust Company, filed as Exhibit 8(i).
               (Accession No. 0000950130-98-000965).



     (g)(11).  Letter Agreement dated November 27, 1985 between Registrant and
               State Street Bank and Trust Company, on behalf of Goldman Sachs -
               Institutional Liquid Assets, amending the Custodian Agreement.
               (Accession No. 0000950130-98-000965).



     (g)(12).  Letter Agreement dated July 22, 1986 between Registrant and State
               Street Bank and Trust Company, on behalf of Goldman Sachs -
               Institutional Liquid Assets, pertaining to a change in wire
               charges. (Accession No. 0000950130-98-000965).



     (g)(13).  Letter Agreement dated June 20, 1987 between Registrant and State
               Street Bank and Trust 
<PAGE>
 
               Company, on behalf of Goldman Sachs -
               Institutional Liquid Assets, amending the Custodian Agreement.
               (Accession No. 0000950130-98-000965).



     (g)(14).  Letter Agreement between Registrant and State Street Bank and
               Trust Company, on behalf of Goldman Sachs - Institutional Liquid
               Assets, pertaining to the latter's designation of Security
               Pacific National Bank as its sub-custodian and certain other
               matters. (Accession No. 0000950130-98-000965).



     (g)(15).  Amendment dated July 19, 1988 to the Custodian Agreement between
               Registrant and State Street Bank and Trust Company, on behalf of
               Goldman Sachs - Institutional Liquid Assets. (Accession No.
               0000950130-98-000965).


     (g)(16).  Amendment dated December 19, 1988 to the Custodian Agreement
               between Registrant and State Street Bank and Trust Company, on
               behalf of Goldman Sachs - Institutional Liquid Assets. (Accession
               No. 0000950130-98-000965).
    
     (g)(17).  Custodian Agreement dated April 6, 1990 between Registrant and
               State Street Bank and Trust Company on behalf of Goldman Sachs
               Capital Growth Fund. (Accession No. 0000950130-98-006081).     

    
     (g)(18).  Sub-Custodian Agreement dated March 29, 1983 between State Street
               Bank and Trust Company and Bank of America, National Trust and
               Savings Association on behalf of Goldman Sachs Institutional
               Liquid Assets. (Accession No. 0000950130-98-006081).     


     (h)(1).   Wiring Agreement dated June 20, 1987 among Goldman, Sachs & Co.,
               State Street Bank and Trust Company and The Northern Trust
               Company. (Accession No. 0000950130-98-000965).



     (h)(2).   Letter Agreement dated June 20, 1987 regarding use of checking
               account between Registrant and The Northern Trust Company.
               (Accession No. 0000950130-98-000965).


     (h)(3).  Transfer Agency Agreement dated July 15, 1991 between Registrant
              and Goldman, Sachs & Co.  (Accession No. 0000950130-95-002856).
<PAGE>
 
     (h)(4).   Fee schedule relating to Transfer Agency Agreement between
               Registrant on behalf of the Goldman Sachs Asset Allocation
               Portfolios and Goldman, Sachs & Co.  (Accession No. 0000950130-
               97-004495).


     (h)(7).   Fee schedule dated July 31, 1998 relating to Transfer Agency
               Agreement between Registrant and Goldman, Sachs & Co. on behalf
               of all Funds of Goldman Sachs Trust other than the Institutional
               Liquid Assets and Financial Square Money Market Funds.
               (Accession No. 0000950130-98-004845).

    
     (h)(8).   Transfer Agency Agreement dated May 1, 1988 between Goldman Sachs
               Institutional Liquid Assets and Goldman, Sachs & Co.  (Accession
               No. 0000950130-98-006081).     
    
     (h)(9).   Transfer Agency Agreement dated April 30, 1997 between Registrant
               and Goldman, Sachs & Co. on behalf of the Financial Square Funds.
               (Accession No. 0000950130-98-006081).     
    
     (h)(10).  Transfer Agency Agreement dated April 6, 1990 between GS-Capital
               Growth Fund, Inc. and Goldman Sachs & Co.  (Accession No.
               0000950130-98-006081).     
    
     (h)(11).  Goldman Sachs - Institutional Liquid Assets Administration Class
               Administration Plan dated April 22, 1998.  (Accession No.
               0000950130-98-006081).     
    
     (h)(12).  FST Administration Class Administration Plan dated April 22,
               1998.  (Accession No. 0000950130-98-006081).     
    
     (h)(13).  Goldman Sachs - Institutional Liquid Assets Service Class Service
               Plan dated April 22, 1998. (Accession No. 
               0000950130-98-006081).     
    
     (h)(14).  FST Service Class Service Plan dated April 22, 1998.  (Accession
               No. 0000950130-98-006081).     
    
     (h)(15).  FST Preferred Class Preferred Administration Plan dated April 22,
               1998.  (Accession No. 0000950130-98-006081).     
<PAGE>
 
    
     (h)(16).  Goldman Sachs Trust Administration Class Administration Plan
               dated April 23, 1998. (Accession No. 0000950130-98-006081).     
    
     (h)(17).  Goldman Sachs Trust Service Class Service Plan dated April 22,
               1998  (Accession No. 0000950130-98-006081).     
    
     (h)(18).  Cash Management Shares Service Plan dated May 1, 1998.
               (Accession No. 0000950130-98-006081).     
    
     (h)(19).  Form of Retail Service Agreement on behalf of Goldman Sachs Trust
               relating to Class A Shares of Goldman Sachs Asset Allocation
               Portfolios, Goldman Sachs Fixed Income Funds, Goldman Sachs
               Domestic Equity Funds and Goldman Sachs International Equity
               Funds.  (Accession No. 0000950130-98-006081).     
    
     (h)(20).  Form of Retail Service Agreement on behalf of Goldman Sachs Trust
               relating to the Preferred Class, Administration Class, Service
               Class and Cash Management Class, as applicable, of Goldman Sachs
               Financial Square Funds, Goldman Sachs - International Liquid
               Asset Portfolios, Goldman Sachs Fixed Income Funds, Goldman Sachs
               Domestic Equity Funds, Goldman Sachs International Equity Funds
               and Goldman Sachs Asset Allocation Portfolios.  (Accession No.
               0000950130-98-006081).     
    
     (h)(21).  Form of Supplemental Service Agreement on behalf of Goldman Sachs
               Trust relating to the Administrative Class, Service Class and
               Cash Management Class of Goldman Sachs - Institutional Liquid
               Assets Portfolios.  (Accession No. 0000950130-98-006081).     
    
     (h)(22).  Form of Supplemental Service Agreement on behalf of Goldman Sachs
               Trust relating to the FST Shares, FST Preferred Shares, FST
               Administration Shares and FST Service Shares of Goldman Sachs
               Financial Square Funds.  (Accession No. 
               0000950130-98-006081).     
<PAGE>
 
    
     (h)(23).  Fee Schedule dated July 31, 1998 relating to Transfer Agency
               Agreement between Registrant and Goldman, Sachs & Co. on behalf
               of ILA Money Market Funds.  (Accession No. 
               0000950130-98-006081).     

     (i)(1).   Opinion of Drinker, Biddle & Reath LLP.  (With respect to the
               Asset Allocation Portfolios). (Accession No. 0000950130-97-
               004495).

     (i)(2).   Opinion of Morris, Nichols, Arsht & Tunnell. (Accession No.
               0000950130-97-001846)

     (i)(3).   Opinion of Drinker, Biddle & Reath LLP.(With respect to Japanese
               Equity and International Small Cap).  (Accession No. 0000950130-
               98-003563).

     (i)(4).   Opinion of Drinker Biddle & Reath LLP.  (With respect to Cash
               Management Shares).  (Accession No. 0000950130-98-003563)
    
     (i)(5).   Opinion of Drinker Biddle & Reath LLP.  (With respect to the
               European Equity Fund).  (Accession No. 
               0000950130-98-006081).     
    
     (i)(6).   Opinion of Drinker Biddle & Reath LLP.  (With respect to the CORE
               Large Cap Value Fund).  (Accession No. 
               0000950130-98-006081).     

     (k).      Not applicable.

     (l).      Not applicable.

     (m)(1).   Class A Distribution and Service Plan amended and restated as of
               September 1, 1998.  (Accession No. 0000950130-98-004845)

     (m)(2).   Class B Distribution and Service Plan amended and restated as of
               September 1, 1998.  (Accession No. 0000950130-98-004845)

     (m)(3).   Class C Distribution and Service Plan amended and restated as of
               September 1, 1998.  (Accession No. 0000950130-98-004845)
    
     (m)(4).   Cash Management Shares Plan of Distribution pursuant to Rule 12b-
               1 dated May 1, 1998.  (Accession No. 0000950130-98-006081).     

     (o).      Plan dated September 1, 1998 entered into by Registrant pursuant
               to Rule 18f-3.  (Accession No. 0000950130-98-004845)
<PAGE>
 
     (p)(1).   Powers of Attorney of Messrs. Bakhru, Ford, Grip, Shuch, Smart,
               Springer, Strubel, McNulty, Mosior, Gilman, Perlowski, Richman,
               Surloff, Mmes. MacPherson, Mucker and Taylor.  (Accession No.
               0000950130-97-000805)

     (p)(2).   Powers of Attorney dated October 21, 1997 on behalf of James A.
               Fitzpatrick and Valerie A. Zondorak.  (Accession No. 0000950130-
               98-000676)

The following exhibits relating to Goldman Sachs Trust are filed herewith
electronically pursuant to EDGAR rules:
    
     (j). Consent of Independent Auditors.     

     (n).      Financial Data Schedules.

ITEM 24.  PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH REGISTRANT.
          ------------------------------------------------------------- 

Not Applicable.

ITEM 25. INDEMNIFICATION
         ---------------

Article IV of the Declaration of Trust of Goldman Sachs Trust, Delaware business
trust, provides for indemnification of the Trustees, officers and agents of the
Trust, subject to certain limitations.  The Declaration of Trust is incorporated
by reference to Exhibit (a)(1).

The Management Agreement with each of the Funds (other than the ILA Portfolios)
provides that the applicable Investment Adviser will not be liable for any error
of judgment or mistake of law or for any loss suffered by a Fund, except a loss
resulting from willful misfeasance, bad faith or gross negligence on the part of
the Investment Adviser or from reckless disregard by the Investment Adviser of
its obligations or duties under the Management Agreement.  Section 7 of the
Management Agreement with respect to the ILA Portfolios provides that the ILA
Portfolios will indemnify the Adviser against certain liabilities; provided,
however, that such indemnification does not apply to any loss by reason of its
willful misfeasance, bad faith or gross negligence or the Adviser's reckless
disregard of its obligation under the Management Agreement.  The Management
Agreements are incorporated by reference to Exhibits (d)(1) through (d)(6);

Section 9 of the Distribution Agreement between the Registrant and Goldman Sachs
dated April 30, 1997, as amended November 3, 1998 and Section 7 of the Transfer
Agency Agreements between the Registrant and Goldman, Sachs & Co. dated July 15,
1991, May 1, 
<PAGE>
 
    
1988, April 30, 1997 and April 6, 1990 each provide that the Registrant will
indemnify Goldman, Sachs & Co. against certain liabilities. A copy of such
Agreements are incorporated by reference as Exhibits (e)(1), (h)(3), (h)(8),
(h)(9) and (h)(10), respectively, to the Registrant's Registration 
Statement.     

Mutual fund and Trustees and officers liability policies purchased jointly by
the Registrant, Trust for Credit Unions, The Northern Institutional Funds
(formerly The Benchmark Funds), Goldman Sachs Variable Insurance Trust and The
Commerce Funds insure such persons and their respective trustees, partners,
officers and employees, subject to the policies' coverage limits and exclusions
and varying deductibles, against loss resulting from claims by reason of any
act, error, omission, misstatement, misleading statement, neglect or breach of
duty.

ITEM 26.  BUSINESS AND OTHER CONNECTIONS OF INVESTMENT ADVISER.
          ---------------------------------------------------- 

The business and other connections of the officers and Managing Directors of
Goldman, Sachs & Co., Goldman Sachs Funds Management, L.P., and Goldman Sachs
Asset Management International are listed on their respective Forms ADV as
currently filed with the Commission (File Nos. 801-16048, 801-37591 and 801-
38157, respectively) the texts of which are hereby incorporated by reference.

ITEM 27. PRINCIPAL UNDERWRITERS.
         ---------------------- 

(a)  Goldman, Sachs & Co. or an affiliate or a division thereof currently serves
as investment adviser and distributor of the units of Trust for Credit Unions,
for shares of Goldman Sachs Trust and for shares of Goldman Sachs Variable
Insurance Trust. Goldman, Sachs & Co., or a division thereof currently serves as
administrator and distributor of the units or shares of Northern Institutional
Funds (formerly The Benchmark Funds) and The Commerce Funds.

(b)  Set forth below is certain information pertaining to the Managing Directors
of Goldman, Sachs & Co., the Registrant's principal underwriter, who are members
of Goldman, Sachs & Co.'s Executive Committee.  None of the members of the
executive committee holds a position or office with the Registrant.

     GOLDMAN SACHS EXECUTIVE COMMITTEE

     Name and Principal
     Business Address               Position
     ----------------               --------

     Jon S. Corzine (1)             Chief Executive Officer
     Robert J. Hurst (1)            Managing Director
     Henry M. Paulson, Jr. (1)      Chief Operating Officer
<PAGE>
 
     John A. Thain (1)(3)           Chief Financial Officer
     John L. Thornton (3)           Managing Director
     Roy J. Zuckerberg (2)          Managing Director
     _______________________

     (1)  85 Broad Street, New York, NY 10004
     (2)  One New York Plaza, New York, NY 10004
     (3)  Peterborough Court, 133 Fleet Street, London EC4A 2BB, England

(c) Not Applicable.

ITEM 28.  LOCATION OF ACCOUNTS AND RECORDS.
          -------------------------------- 

The Declaration of Trust, By-laws, minute books of the Registrant and certain
investment adviser records are in the physical possession of Goldman Sachs Asset
Management, One New York Plaza, New York, New York  10004.  All other accounts,
books and other documents required to be maintained under Section 31(a) of the
Investment Company Act of 1940 and the Rules promulgated thereunder are in the
physical possession of State Street Bank and Trust Company, P.O. Box 1713,
Boston, Massachusetts 02105 except for certain transfer agency records which are
maintained by Goldman, Sachs & Co., 4900 Sears Tower, Chicago, Illinois 60606.

ITEM 29. MANAGEMENT SERVICES
         -------------------

Not applicable.

Item 30. UNDERTAKINGS
         ------------

Not applicable.
<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 No. 51 to its Registration Statement to be signed on its behalf by the
undersigned, duly authorized, in the City and State of New York on the 12th day
of January, 1999.     


GOLDMAN SACHS TRUST
(A Delaware business trust)


By: /s/ Michael Richman
    --------------------
    Michael J. Richman
    Secretary

Pursuant to the requirements of the Securities Act of 1933, this Post-Effective
Amendment to said Registration Statement has been signed below by the following
persons in the capacities and on the date indicated.
<TABLE>     
<CAPTION>
<S>                                       <C>                               <C> 
NAME                                        TITLE                             DATE
- ----                                        -----                             ----
*Douglas C. Grip                           President and                     January 12, 1999  
- ----------------                           Trustee                           ----------------    
Douglas C. Grip                                                                                 
                                                                                              
*John M. Perlowski                         Principal Accounting              January 12, 1999
- ------------------                         Officer And Principal             ---------------- 
John M. Perlowski                          Financial Officer                                        
                                           
                                                                             
*David B. Ford                             Trustee                           January 12, 1999
- --------------                                                               ----------------
 David B. Ford                
                              
*Mary Patterson McPherson                  Trustee                           January 12, 1999
- -------------------------                                                    ----------------
 Mary Patterson McPherson     
                              
*Ashok N. Bakhru                           Chairman and Trustee              January 12, 1999
- ----------------                                                             ---------------- 
 Ashok N. Bakhru              
                              
*Alan A. Shuch                             Trustee                           January 12, 1999
- --------------                                                               ----------------
 Alan A. Shuch                
                              
*Jackson W. Smart                          Trustee                           January 12, 1999
- -----------------                                                            ----------------
 Jackson W. Smart, Jr.        
                              
*John P. McNulty                           Trustee                           January 12, 1999
- ----------------                                                             ----------------
 John P. McNulty              
                              
*William H. Springer                       Trustee                           January 12, 1999
- --------------------                                                         ----------------
 William H. Springer          
                              
*Richard P. Strubel                        Trustee                           January 12, 1999
- -------------------                                                          ----------------
 Richard P. Strubel
</TABLE>     



*By: /s/ Michael Richman 
    --------------------  
    Michael J. Richman,
    Attorney-In-Fact
         *  Pursuant to a power of attorney previously filed.
<PAGE>
 
                              GOLDMAN SACHS TRUST

                           Certificate of Secretary



     The undersigned Secretary of Goldman Sachs Trust hereby certifies that the
following resolution was duly adopted by the Board of Trustees of said Trust on
April 22, 1998 and remains in effect on the date hereof:


          FURTHER RESOLVED, that the Trustees and Officers of the Trusts who may
     be required to execute any amendments to the Trust's Registration Statement
     be, and each hereby is, authorized to execute a power of attorney
     appointing James A. Fitzpatrick, Douglas C. Grip, John W. Mosior, Nancy L.
     Mucker, John W. Perlowski, Michael J. Richman, Howard B. Surloff and
     Valerie A. Zondorak, jointly and severally, their attorneys-in-fact, each
     with power of substitution, for said Trustees and Officers in any and all
     capacities to sign the Registration Statement under the Securities Act of
     1933 and the Investment Company Act of 1940 of the Trusts and any and all
     amendments to such Registration Statement, and to file the same, with
     exhibits thereto, and other documents in connection therewith, with the
     Securities and Exchange Commission, hereby ratifying and confirming all
     that each of said attorneys-in-fact, or his or her substitute or
     substitutes, may do or cause to be done by virtue hereof.



     IN WITNESS WHEREOF, I have hereunto set my hand this 12th day of January,
1999.



                                                     GOLDMAN SACHS TRUST


                                                     /s/ Michael J. Richman
                                                     ----------------------
                                                     Michael J. Richman
                                                     Secretary
<PAGE>
 
                                 EXHIBIT INDEX
                                        

     (j).      Consent of Independent Auditors

     (n).      Financial Data Schedules.

<PAGE>
 
                                                                       Exhibit J


                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


As independent public accountants, we hereby consent to the use of our report
for Goldman Sachs Trust - Domestic Equity Funds dated March 12, 1998 (and to all
references to our firm) included in or made a part of Post-Effective Amendment
No. 51 and Amendment No. 53 to Registration Statement File Nos. 33-17619 and 
811-5349, respectively.



                                                 /s/ ARTHUR ANDERSEN LLP
                                                 ----------------------------
                                                 ARTHUR ANDERSEN LLP

Boston, Massachusetts
January 8, 1999

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 561
   <NAME> GOLDMAN SACHS ASIA GROWTH FUND-CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      100,932,491
<INVESTMENTS-AT-VALUE>                      70,192,367
<RECEIVABLES>                                1,713,594
<ASSETS-OTHER>                                 137,698
<OTHER-ITEMS-ASSETS>                           721,897
<TOTAL-ASSETS>                              72,765,556
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,879,093
<TOTAL-LIABILITIES>                          1,879,093
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   184,699,934
<SHARES-COMMON-STOCK>                        9,231,029
<SHARES-COMMON-PRIOR>                       10,430,282
<ACCUMULATED-NII-CURRENT>                      473,668
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                    83,619,423
<ACCUM-APPREC-OR-DEPREC>                  (30,667,716)
<NET-ASSETS>                                70,886,463
<DIVIDEND-INCOME>                            1,053,932
<INTEREST-INCOME>                              191,270
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 909,421
<NET-INVESTMENT-INCOME>                        335,781
<REALIZED-GAINS-CURRENT>                   (9,989,697)
<APPREC-INCREASE-CURRENT>                  (4,633,261)
<NET-CHANGE-FROM-OPS>                     (14,287,177)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      7,137,705
<NUMBER-OF-SHARES-REDEEMED>                  8,336,958
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                    (21,219,064)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                     23,347,264
<OVERDIST-NET-GAINS-PRIOR>                  50,144,575
<GROSS-ADVISORY-FEES>                          458,773
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,142,097
<AVERAGE-NET-ASSETS>                        92,515,094
<PER-SHARE-NAV-BEGIN>                             8.38
<PER-SHARE-NII>                                    .04
<PER-SHARE-GAIN-APPREC>                         (1.43)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               6.99
<EXPENSE-RATIO>                                   1.97
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 562
   <NAME> GOLDMAN SACHS ASIA GROWTH FUND-CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      100,932,491
<INVESTMENTS-AT-VALUE>                      70,192,367
<RECEIVABLES>                                1,713,594
<ASSETS-OTHER>                                 137,698
<OTHER-ITEMS-ASSETS>                           721,897
<TOTAL-ASSETS>                              72,765,556
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,879,093
<TOTAL-LIABILITIES>                          1,879,093
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   184,699,934
<SHARES-COMMON-STOCK>                          629,855
<SHARES-COMMON-PRIOR>                          404,337
<ACCUMULATED-NII-CURRENT>                      473,668
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                    83,619,423
<ACCUM-APPREC-OR-DEPREC>                  (30,667,716)
<NET-ASSETS>                                70,886,463
<DIVIDEND-INCOME>                            1,053,932
<INTEREST-INCOME>                              191,270
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 909,421
<NET-INVESTMENT-INCOME>                        335,781
<REALIZED-GAINS-CURRENT>                   (9,989,697)
<APPREC-INCREASE-CURRENT>                  (4,633,261)
<NET-CHANGE-FROM-OPS>                     (14,287,177)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        283,041
<NUMBER-OF-SHARES-REDEEMED>                     57,523
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                    (21,219,064)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                     23,347,264
<OVERDIST-NET-GAINS-PRIOR>                  50,144,575
<GROSS-ADVISORY-FEES>                          458,773
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,142,097
<AVERAGE-NET-ASSETS>                        92,515,094
<PER-SHARE-NAV-BEGIN>                             8.31
<PER-SHARE-NII>                                      0
<PER-SHARE-GAIN-APPREC>                         (1.40)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               6.91
<EXPENSE-RATIO>                                   2.51
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 567
   <NAME> GOLDMAN SACHS ASIA GROWTH FUND-CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      100,932,491
<INVESTMENTS-AT-VALUE>                      70,192,367
<RECEIVABLES>                                1,713,594
<ASSETS-OTHER>                                 137,698
<OTHER-ITEMS-ASSETS>                           721,897
<TOTAL-ASSETS>                              72,765,556
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,879,093
<TOTAL-LIABILITIES>                          1,879,093
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   184,699,934
<SHARES-COMMON-STOCK>                          111,977
<SHARES-COMMON-PRIOR>                           52,511
<ACCUMULATED-NII-CURRENT>                      473,668
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                    83,619,423
<ACCUM-APPREC-OR-DEPREC>                  (30,667,716)
<NET-ASSETS>                                70,886,463
<DIVIDEND-INCOME>                            1,053,932
<INTEREST-INCOME>                              191,270
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 909,421
<NET-INVESTMENT-INCOME>                        335,781
<REALIZED-GAINS-CURRENT>                   (9,989,697)
<APPREC-INCREASE-CURRENT>                  (4,633,261)
<NET-CHANGE-FROM-OPS>                     (14,287,177)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        129,668
<NUMBER-OF-SHARES-REDEEMED>                     70,202
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                    (21,219,064)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                     23,347,264
<OVERDIST-NET-GAINS-PRIOR>                  50,144,575
<GROSS-ADVISORY-FEES>                          458,773
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,142,097
<AVERAGE-NET-ASSETS>                        92,515,094
<PER-SHARE-NAV-BEGIN>                             8.29
<PER-SHARE-NII>                                    .01
<PER-SHARE-GAIN-APPREC>                         (1.40)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               6.90
<EXPENSE-RATIO>                                   2.51
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 563
   <NAME> GOLDMAN SACHS ASIA GROWTH FUND-INST.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      100,932,491
<INVESTMENTS-AT-VALUE>                      70,192,367
<RECEIVABLES>                                1,713,594
<ASSETS-OTHER>                                 137,698
<OTHER-ITEMS-ASSETS>                           721,897
<TOTAL-ASSETS>                              72,765,556
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,879,093
<TOTAL-LIABILITIES>                          1,879,093
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   184,699,934
<SHARES-COMMON-STOCK>                          179,302
<SHARES-COMMON-PRIOR>                          103,588
<ACCUMULATED-NII-CURRENT>                      473,668
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                    83,619,423
<ACCUM-APPREC-OR-DEPREC>                  (30,667,716)
<NET-ASSETS>                                70,886,463
<DIVIDEND-INCOME>                            1,053,932
<INTEREST-INCOME>                              191,270
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 909,421
<NET-INVESTMENT-INCOME>                        335,781
<REALIZED-GAINS-CURRENT>                   (9,989,697)
<APPREC-INCREASE-CURRENT>                  (4,633,261)
<NET-CHANGE-FROM-OPS>                     (14,287,177)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        231,777
<NUMBER-OF-SHARES-REDEEMED>                    156,063
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                    (21,219,064)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                     23,347,264
<OVERDIST-NET-GAINS-PRIOR>                  50,144,575
<GROSS-ADVISORY-FEES>                          458,773
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,142,097
<AVERAGE-NET-ASSETS>                        92,515,094
<PER-SHARE-NAV-BEGIN>                             8.44
<PER-SHARE-NII>                                    .07
<PER-SHARE-GAIN-APPREC>                         (1.44)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               7.07
<EXPENSE-RATIO>                                   1.10
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 511
   <NAME> GOLDMAN SACHS BALANCED FUND-CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      265,524,624
<INVESTMENTS-AT-VALUE>                     264,782,956
<RECEIVABLES>                               12,119,101
<ASSETS-OTHER>                                 191,142
<OTHER-ITEMS-ASSETS>                            50,181
<TOTAL-ASSETS>                             277,143,380
<PAYABLE-FOR-SECURITIES>                    21,071,385
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      954,700
<TOTAL-LIABILITIES>                         22,026,085
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   244,428,942
<SHARES-COMMON-STOCK>                        9,526,414
<SHARES-COMMON-PRIOR>                        8,064,620
<ACCUMULATED-NII-CURRENT>                      571,765
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     10,876,964
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     (760,376)
<NET-ASSETS>                               255,117,295
<DIVIDEND-INCOME>                            1,056,222
<INTEREST-INCOME>                            3,644,966
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               1,380,656
<NET-INVESTMENT-INCOME>                      3,320,532
<REALIZED-GAINS-CURRENT>                     6,490,959
<APPREC-INCREASE-CURRENT>                 (11,610,626)
<NET-CHANGE-FROM-OPS>                      (1,799,135)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    2,529,348
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      2,230,239
<NUMBER-OF-SHARES-REDEEMED>                    872,134
<SHARES-REINVESTED>                            103,689
<NET-CHANGE-IN-ASSETS>                      50,609,050
<ACCUMULATED-NII-PRIOR>                        410,404
<ACCUMULATED-GAINS-PRIOR>                    4,386,005
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          791,642
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,864,518
<AVERAGE-NET-ASSETS>                       245,600,676
<PER-SHARE-NAV-BEGIN>                            20.29
<PER-SHARE-NII>                                    .29
<PER-SHARE-GAIN-APPREC>                          (.21)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                          .28
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              20.09
<EXPENSE-RATIO>                                   1.00
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 512
   <NAME> GOLDMAN SACHS BALANCED FUND-CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      265,524,624
<INVESTMENTS-AT-VALUE>                     264,782,956
<RECEIVABLES>                               12,119,101
<ASSETS-OTHER>                                 191,142
<OTHER-ITEMS-ASSETS>                            50,181
<TOTAL-ASSETS>                             277,143,380
<PAYABLE-FOR-SECURITIES>                    21,071,385
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      954,700
<TOTAL-LIABILITIES>                         22,026,085
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   244,428,942
<SHARES-COMMON-STOCK>                        1,946,992
<SHARES-COMMON-PRIOR>                        1,170,246
<ACCUMULATED-NII-CURRENT>                      571,765
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     10,876,964
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     (760,376)
<NET-ASSETS>                               255,117,295
<DIVIDEND-INCOME>                            1,056,222
<INTEREST-INCOME>                            3,644,966
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               1,380,656
<NET-INVESTMENT-INCOME>                      3,320,532
<REALIZED-GAINS-CURRENT>                     6,490,959
<APPREC-INCREASE-CURRENT>                 (11,610,626)
<NET-CHANGE-FROM-OPS>                      (1,799,135)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      347,480
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        873,368
<NUMBER-OF-SHARES-REDEEMED>                    111,028
<SHARES-REINVESTED>                             14,406
<NET-CHANGE-IN-ASSETS>                      50,609,050
<ACCUMULATED-NII-PRIOR>                        410,404
<ACCUMULATED-GAINS-PRIOR>                    4,386,005
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          791,642
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,864,518
<AVERAGE-NET-ASSETS>                       245,600,676
<PER-SHARE-NAV-BEGIN>                            20.20
<PER-SHARE-NII>                                    .20
<PER-SHARE-GAIN-APPREC>                          (.20)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                          .21
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              19.99
<EXPENSE-RATIO>                                   1.75
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 517
   <NAME> GOLDMAN SACHS BALANCED FUND-CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      265,524,624
<INVESTMENTS-AT-VALUE>                     264,782,956
<RECEIVABLES>                               12,119,101
<ASSETS-OTHER>                                 191,142
<OTHER-ITEMS-ASSETS>                            50,181
<TOTAL-ASSETS>                             277,143,380
<PAYABLE-FOR-SECURITIES>                    21,071,385
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      954,700
<TOTAL-LIABILITIES>                         22,026,085
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   244,428,942
<SHARES-COMMON-STOCK>                          786,453
<SHARES-COMMON-PRIOR>                          438,867
<ACCUMULATED-NII-CURRENT>                      571,765
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     10,876,964
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     (760,376)
<NET-ASSETS>                               255,117,295
<DIVIDEND-INCOME>                            1,056,222
<INTEREST-INCOME>                            3,644,966
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               1,380,656
<NET-INVESTMENT-INCOME>                      3,320,532
<REALIZED-GAINS-CURRENT>                     6,490,959
<APPREC-INCREASE-CURRENT>                 (11,610,626)
<NET-CHANGE-FROM-OPS>                      (1,799,135)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      140,623
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        407,086
<NUMBER-OF-SHARES-REDEEMED>                     64,943
<SHARES-REINVESTED>                              5,443
<NET-CHANGE-IN-ASSETS>                      50,609,050
<ACCUMULATED-NII-PRIOR>                        410,404
<ACCUMULATED-GAINS-PRIOR>                    4,386,005
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          791,642
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,864,518
<AVERAGE-NET-ASSETS>                       245,600,676
<PER-SHARE-NAV-BEGIN>                            20.17
<PER-SHARE-NII>                                    .20
<PER-SHARE-GAIN-APPREC>                          (.21)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                          .21
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              19.95
<EXPENSE-RATIO>                                   1.75
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 513
   <NAME> GOLDMAN SACHS BALANCED FUND-INST.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      265,524,624
<INVESTMENTS-AT-VALUE>                     264,782,956
<RECEIVABLES>                               12,119,101
<ASSETS-OTHER>                                 191,142
<OTHER-ITEMS-ASSETS>                            50,181
<TOTAL-ASSETS>                             277,143,380
<PAYABLE-FOR-SECURITIES>                    21,071,385
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      954,700
<TOTAL-LIABILITIES>                         22,026,085
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   244,428,942
<SHARES-COMMON-STOCK>                          430,378
<SHARES-COMMON-PRIOR>                          412,422
<ACCUMULATED-NII-CURRENT>                      571,765
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     10,876,964
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     (760,376)
<NET-ASSETS>                               255,117,295
<DIVIDEND-INCOME>                            1,056,222
<INTEREST-INCOME>                            3,644,966
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               1,380,656
<NET-INVESTMENT-INCOME>                      3,320,532
<REALIZED-GAINS-CURRENT>                     6,490,959
<APPREC-INCREASE-CURRENT>                 (11,610,626)
<NET-CHANGE-FROM-OPS>                      (1,799,135)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      141,516
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         75,472
<NUMBER-OF-SHARES-REDEEMED>                     63,815
<SHARES-REINVESTED>                              6,299
<NET-CHANGE-IN-ASSETS>                      50,609,050
<ACCUMULATED-NII-PRIOR>                        410,404
<ACCUMULATED-GAINS-PRIOR>                    4,386,005
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          791,642
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,864,518
<AVERAGE-NET-ASSETS>                       245,600,676
<PER-SHARE-NAV-BEGIN>                            20.29
<PER-SHARE-NII>                                    .32
<PER-SHARE-GAIN-APPREC>                          (.21)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                          .31
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              20.09
<EXPENSE-RATIO>                                    .75
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 516
   <NAME> GOLDMAN SACHS BALANCED FUND-SERV.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      265,524,624
<INVESTMENTS-AT-VALUE>                     264,782,956
<RECEIVABLES>                               12,119,101
<ASSETS-OTHER>                                 191,142
<OTHER-ITEMS-ASSETS>                            50,181
<TOTAL-ASSETS>                             277,143,380
<PAYABLE-FOR-SECURITIES>                    21,071,385
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      954,700
<TOTAL-LIABILITIES>                         22,026,085
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   244,428,942
<SHARES-COMMON-STOCK>                           22,250
<SHARES-COMMON-PRIOR>                              780
<ACCUMULATED-NII-CURRENT>                      571,765
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     10,876,964
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     (760,376)
<NET-ASSETS>                               255,117,295
<DIVIDEND-INCOME>                            1,056,222
<INTEREST-INCOME>                            3,644,966
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               1,380,656
<NET-INVESTMENT-INCOME>                      3,320,532
<REALIZED-GAINS-CURRENT>                     6,490,959
<APPREC-INCREASE-CURRENT>                 (11,610,626)
<NET-CHANGE-FROM-OPS>                      (1,799,135)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                          204
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         21,460
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                 10
<NET-CHANGE-IN-ASSETS>                      50,609,050
<ACCUMULATED-NII-PRIOR>                        410,404
<ACCUMULATED-GAINS-PRIOR>                    4,386,005
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          791,642
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,864,518
<AVERAGE-NET-ASSETS>                       245,600,676
<PER-SHARE-NAV-BEGIN>                            20.28
<PER-SHARE-NII>                                    .26
<PER-SHARE-GAIN-APPREC>                          (.21)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                          .25
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              20.08
<EXPENSE-RATIO>                                   1.25
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 531
   <NAME> GOLDMAN SACHS CAPITAL GROWTH FUND-CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                    1,228,465,100
<INVESTMENTS-AT-VALUE>                   1,796,302,656
<RECEIVABLES>                               27,340,361
<ASSETS-OTHER>                                  85,160
<OTHER-ITEMS-ASSETS>                            30,184
<TOTAL-ASSETS>                           1,823,758,361
<PAYABLE-FOR-SECURITIES>                     5,787,162
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    9,906,411
<TOTAL-LIABILITIES>                         15,693,573
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,200,364,042
<SHARES-COMMON-STOCK>                       75,217,102
<SHARES-COMMON-PRIOR>                       67,981,133
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                       1,297,973
<ACCUMULATED-NET-GAINS>                     41,161,163
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   567,837,556
<NET-ASSETS>                             1,808,064,788
<DIVIDEND-INCOME>                            8,602,135
<INTEREST-INCOME>                            1,456,263
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              11,356,371
<NET-INVESTMENT-INCOME>                    (1,297,973)
<REALIZED-GAINS-CURRENT>                    37,897,023
<APPREC-INCREASE-CURRENT>                  204,813,265
<NET-CHANGE-FROM-OPS>                      241,412,315
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                     14,379,015
<NUMBER-OF-SHARES-REDEEMED>                  7,143,046
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     497,984,095
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    3,264,140
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        7,953,076
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             13,216,138
<AVERAGE-NET-ASSETS>                     1,603,813,983
<PER-SHARE-NAV-BEGIN>                            18.48
<PER-SHARE-NII>                                  (.01)
<PER-SHARE-GAIN-APPREC>                           3.32
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              21.79
<EXPENSE-RATIO>                                   1.39
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 532
   <NAME> GOLDMAN SACHS CAPITAL GROWTH FUND-CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                    1,228,465,100
<INVESTMENTS-AT-VALUE>                   1,796,302,656
<RECEIVABLES>                               27,340,361
<ASSETS-OTHER>                                  85,160
<OTHER-ITEMS-ASSETS>                            30,184
<TOTAL-ASSETS>                           1,823,758,361
<PAYABLE-FOR-SECURITIES>                     5,787,162
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    9,906,411
<TOTAL-LIABILITIES>                         15,693,573
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,200,364,042
<SHARES-COMMON-STOCK>                        5,826,554
<SHARES-COMMON-PRIOR>                        2,234,279
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                       1,297,973
<ACCUMULATED-NET-GAINS>                     41,161,163
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   567,837,556
<NET-ASSETS>                             1,808,064,788
<DIVIDEND-INCOME>                            8,602,135
<INTEREST-INCOME>                            1,456,263
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              11,356,371
<NET-INVESTMENT-INCOME>                    (1,297,973)
<REALIZED-GAINS-CURRENT>                    37,897,023
<APPREC-INCREASE-CURRENT>                  204,813,265
<NET-CHANGE-FROM-OPS>                      241,412,315
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      3,710,874
<NUMBER-OF-SHARES-REDEEMED>                    118,599
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     497,984,095
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    3,264,140
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        7,953,076
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             13,216,138
<AVERAGE-NET-ASSETS>                     1,603,813,983
<PER-SHARE-NAV-BEGIN>                            18.27
<PER-SHARE-NII>                                  (.06)
<PER-SHARE-GAIN-APPREC>                           3.26
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              21.47
<EXPENSE-RATIO>                                   2.14
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 537
   <NAME> GOLDMAN SACHS CAPITAL GROWTH FUND-CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                    1,228,465,100
<INVESTMENTS-AT-VALUE>                   1,796,302,656
<RECEIVABLES>                               27,340,361
<ASSETS-OTHER>                                  85,160
<OTHER-ITEMS-ASSETS>                            30,184
<TOTAL-ASSETS>                           1,823,758,361
<PAYABLE-FOR-SECURITIES>                     5,787,162
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    9,906,411
<TOTAL-LIABILITIES>                         15,693,573
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,200,364,042
<SHARES-COMMON-STOCK>                        1,278,409
<SHARES-COMMON-PRIOR>                          295,829
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                       1,297,973
<ACCUMULATED-NET-GAINS>                     41,161,163
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   567,837,556
<NET-ASSETS>                             1,808,064,788
<DIVIDEND-INCOME>                            8,602,135
<INTEREST-INCOME>                            1,456,263
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              11,356,371
<NET-INVESTMENT-INCOME>                    (1,297,973)
<REALIZED-GAINS-CURRENT>                    37,897,023
<APPREC-INCREASE-CURRENT>                  204,813,265
<NET-CHANGE-FROM-OPS>                      241,412,315
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      1,040,192
<NUMBER-OF-SHARES-REDEEMED>                     57,612
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     497,984,095
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    3,264,140
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        7,953,076
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             13,216,138
<AVERAGE-NET-ASSETS>                     1,603,813,983
<PER-SHARE-NAV-BEGIN>                            18.24
<PER-SHARE-NII>                                  (.05)
<PER-SHARE-GAIN-APPREC>                           3.23
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              21.42
<EXPENSE-RATIO>                                   2.14
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 533
   <NAME> GOLDMAN SACHS CAPITAL GROWTH FUND-INST.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                    1,228,465,100
<INVESTMENTS-AT-VALUE>                   1,796,302,656
<RECEIVABLES>                               27,340,361
<ASSETS-OTHER>                                  85,160
<OTHER-ITEMS-ASSETS>                            30,184
<TOTAL-ASSETS>                           1,823,758,361
<PAYABLE-FOR-SECURITIES>                     5,787,162
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    9,906,411
<TOTAL-LIABILITIES>                         15,693,573
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,200,364,042
<SHARES-COMMON-STOCK>                          699,981
<SHARES-COMMON-PRIOR>                          393,638
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                       1,297,973
<ACCUMULATED-NET-GAINS>                     41,161,163
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   567,837,556
<NET-ASSETS>                             1,808,064,788
<DIVIDEND-INCOME>                            8,602,135
<INTEREST-INCOME>                            1,456,263
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              11,356,371
<NET-INVESTMENT-INCOME>                    (1,297,973)
<REALIZED-GAINS-CURRENT>                    37,897,023
<APPREC-INCREASE-CURRENT>                  204,813,265
<NET-CHANGE-FROM-OPS>                      241,412,315
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        682,259
<NUMBER-OF-SHARES-REDEEMED>                    375,916
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     497,984,095
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    3,264,140
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        7,953,076
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             13,216,138
<AVERAGE-NET-ASSETS>                     1,603,813,983
<PER-SHARE-NAV-BEGIN>                            18.45
<PER-SHARE-NII>                                    .01
<PER-SHARE-GAIN-APPREC>                           3.32
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              21.78
<EXPENSE-RATIO>                                   1.10
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 536
   <NAME> GOLDMAN SACHS CAPITAL GROWTH FUND-SERV.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                    1,228,465,100
<INVESTMENTS-AT-VALUE>                   1,796,302,656
<RECEIVABLES>                               27,340,361
<ASSETS-OTHER>                                  85,160
<OTHER-ITEMS-ASSETS>                            30,184
<TOTAL-ASSETS>                           1,823,758,361
<PAYABLE-FOR-SECURITIES>                     5,787,162
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    9,906,411
<TOTAL-LIABILITIES>                         15,693,573
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,200,364,042
<SHARES-COMMON-STOCK>                           56,220
<SHARES-COMMON-PRIOR>                               94
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                       1,297,973
<ACCUMULATED-NET-GAINS>                     41,161,163
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   567,837,556
<NET-ASSETS>                             1,808,064,788
<DIVIDEND-INCOME>                            8,602,135
<INTEREST-INCOME>                            1,456,263
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              11,356,371
<NET-INVESTMENT-INCOME>                    (1,297,973)
<REALIZED-GAINS-CURRENT>                    37,897,023
<APPREC-INCREASE-CURRENT>                  204,813,265
<NET-CHANGE-FROM-OPS>                      241,412,315
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         56,131
<NUMBER-OF-SHARES-REDEEMED>                          5
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     497,984,095
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    3,264,140
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        7,953,076
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             13,216,138
<AVERAGE-NET-ASSETS>                     1,603,813,983
<PER-SHARE-NAV-BEGIN>                            18.46
<PER-SHARE-NII>                                    .02
<PER-SHARE-GAIN-APPREC>                           3.30
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              21.74
<EXPENSE-RATIO>                                   1.60
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 611
   <NAME> GOLDMAN SACHS CORE INTERNATIONAL EQUITY FUND-CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      245,448,150
<INVESTMENTS-AT-VALUE>                     248,020,043
<RECEIVABLES>                                2,358,961
<ASSETS-OTHER>                                 161,416
<OTHER-ITEMS-ASSETS>                         1,178,536
<TOTAL-ASSETS>                             251,718,956
<PAYABLE-FOR-SECURITIES>                     5,142,686
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,138,017
<TOTAL-LIABILITIES>                          6,280,703
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   243,023,345
<SHARES-COMMON-STOCK>                        2,082,717
<SHARES-COMMON-PRIOR>                          768,392
<ACCUMULATED-NII-CURRENT>                    1,067,631
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                     1,219,404
<ACCUM-APPREC-OR-DEPREC>                     2,566,681
<NET-ASSETS>                               245,438,253
<DIVIDEND-INCOME>                            1,523,474
<INTEREST-INCOME>                              217,415
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 661,518
<NET-INVESTMENT-INCOME>                      1,079,371
<REALIZED-GAINS-CURRENT>                     (543,649)
<APPREC-INCREASE-CURRENT>                    2,466,573
<NET-CHANGE-FROM-OPS>                        3,002,295
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      1,424,896
<NUMBER-OF-SHARES-REDEEMED>                    110,571
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     216,302,746
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                        148,309
<OVERDIST-NET-GAINS-PRIOR>                     539,186
<GROSS-ADVISORY-FEES>                          505,202
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                979,484
<AVERAGE-NET-ASSETS>                       119,856,157
<PER-SHARE-NAV-BEGIN>                             9.22
<PER-SHARE-NII>                                    .05
<PER-SHARE-GAIN-APPREC>                            .86
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.13
<EXPENSE-RATIO>                                   1.50
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 612
   <NAME> GOLDMAN SACHS CORE INTERNATIONAL EQUITY FUND-CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      245,448,150
<INVESTMENTS-AT-VALUE>                     248,020,043
<RECEIVABLES>                                2,358,961
<ASSETS-OTHER>                                 161,416
<OTHER-ITEMS-ASSETS>                         1,178,536
<TOTAL-ASSETS>                             251,718,956
<PAYABLE-FOR-SECURITIES>                     5,142,686
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,138,017
<TOTAL-LIABILITIES>                          6,280,703
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   243,023,345
<SHARES-COMMON-STOCK>                          611,192
<SHARES-COMMON-PRIOR>                          295,542
<ACCUMULATED-NII-CURRENT>                    1,067,631
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                     1,219,404
<ACCUM-APPREC-OR-DEPREC>                     2,566,681
<NET-ASSETS>                               245,438,253
<DIVIDEND-INCOME>                            1,523,474
<INTEREST-INCOME>                              217,415
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 661,518
<NET-INVESTMENT-INCOME>                      1,079,371
<REALIZED-GAINS-CURRENT>                     (543,649)
<APPREC-INCREASE-CURRENT>                    2,466,573
<NET-CHANGE-FROM-OPS>                        3,002,295
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        322,482
<NUMBER-OF-SHARES-REDEEMED>                      6,832
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     216,302,746
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                        148,309
<OVERDIST-NET-GAINS-PRIOR>                     539,186
<GROSS-ADVISORY-FEES>                          505,202
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                979,484
<AVERAGE-NET-ASSETS>                       119,856,157
<PER-SHARE-NAV-BEGIN>                             9.21
<PER-SHARE-NII>                                    .03
<PER-SHARE-GAIN-APPREC>                            .85
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.09
<EXPENSE-RATIO>                                   2.00
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 617
   <NAME> GOLDMAN SACHS CORE INTERNATIONAL EQUITY FUND-CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      245,448,150
<INVESTMENTS-AT-VALUE>                     248,020,043
<RECEIVABLES>                                2,358,961
<ASSETS-OTHER>                                 161,416
<OTHER-ITEMS-ASSETS>                         1,178,536
<TOTAL-ASSETS>                             251,718,956
<PAYABLE-FOR-SECURITIES>                     5,142,686
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,138,071
<TOTAL-LIABILITIES>                          6,280,703
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   243,023,345
<SHARES-COMMON-STOCK>                          284,498
<SHARES-COMMON-PRIOR>                          174,438
<ACCUMULATED-NII-CURRENT>                    1,067,631
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                     1,219,404
<ACCUM-APPREC-OR-DEPREC>                     2,566,681
<NET-ASSETS>                               245,438,253
<DIVIDEND-INCOME>                            1,523,474
<INTEREST-INCOME>                              217,415
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 661,518
<NET-INVESTMENT-INCOME>                      1,079,371
<REALIZED-GAINS-CURRENT>                     (543,649)
<APPREC-INCREASE-CURRENT>                    2,466,573
<NET-CHANGE-FROM-OPS>                        3,002,295
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        147,294
<NUMBER-OF-SHARES-REDEEMED>                     37,234
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     216,302,746
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                        148,309
<OVERDIST-NET-GAINS-PRIOR>                     539,186
<GROSS-ADVISORY-FEES>                          505,202
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                979,484
<AVERAGE-NET-ASSETS>                       119,856,157
<PER-SHARE-NAV-BEGIN>                             9.22
<PER-SHARE-NII>                                    .04
<PER-SHARE-GAIN-APPREC>                            .84
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.10
<EXPENSE-RATIO>                                   2.00
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 613
   <NAME> GOLDMAN SACHS CORE INTERNATIONAL EQUITY FUND-INST.  
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      245,448,150
<INVESTMENTS-AT-VALUE>                     248,020,043
<RECEIVABLES>                                2,358,961
<ASSETS-OTHER>                                 161,416
<OTHER-ITEMS-ASSETS>                         1,178,536
<TOTAL-ASSETS>                             251,718,956
<PAYABLE-FOR-SECURITIES>                     5,142,686
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,138,017
<TOTAL-LIABILITIES>                          6,280,703
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   243,023,345
<SHARES-COMMON-STOCK>                       21,161,232
<SHARES-COMMON-PRIOR>                        1,920,464
<ACCUMULATED-NII-CURRENT>                    1,067,631
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                     1,219,404
<ACCUM-APPREC-OR-DEPREC>                     2,566,681
<NET-ASSETS>                               245,438,253
<DIVIDEND-INCOME>                            1,523,474
<INTEREST-INCOME>                              217,415
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 661,518
<NET-INVESTMENT-INCOME>                      1,079,371
<REALIZED-GAINS-CURRENT>                     (543,649)
<APPREC-INCREASE-CURRENT>                    2,466,573
<NET-CHANGE-FROM-OPS>                        3,002,295
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                     20,420,363
<NUMBER-OF-SHARES-REDEEMED>                  1,179,595
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     216,302,746
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                        148,309
<OVERDIST-NET-GAINS-PRIOR>                     539,186
<GROSS-ADVISORY-FEES>                          505,202
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                979,484
<AVERAGE-NET-ASSETS>                       119,856,157
<PER-SHARE-NAV-BEGIN>                             9.24
<PER-SHARE-NII>                                    .04
<PER-SHARE-GAIN-APPREC>                            .89
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.17
<EXPENSE-RATIO>                                   1.00
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 616
   <NAME> GOLDMAN SACHS CORE INTERNATIONAL EQUITY FUND-SERV.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      245,448,150
<INVESTMENTS-AT-VALUE>                     248,020,043
<RECEIVABLES>                                2,358,961
<ASSETS-OTHER>                                 161,416
<OTHER-ITEMS-ASSETS>                         1,178,536
<TOTAL-ASSETS>                             251,718,956
<PAYABLE-FOR-SECURITIES>                     5,142,686
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,138,017
<TOTAL-LIABILITIES>                          6,280,703
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   243,023,345
<SHARES-COMMON-STOCK>                            1,097
<SHARES-COMMON-PRIOR>                              161
<ACCUMULATED-NII-CURRENT>                    1,067,631
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                     1,219,404
<ACCUM-APPREC-OR-DEPREC>                     2,566,681
<NET-ASSETS>                               245,438,253
<DIVIDEND-INCOME>                            1,523,474
<INTEREST-INCOME>                              217,415
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 661,518
<NET-INVESTMENT-INCOME>                      1,079,371
<REALIZED-GAINS-CURRENT>                     (543,649)
<APPREC-INCREASE-CURRENT>                    2,466,573
<NET-CHANGE-FROM-OPS>                        3,002,295
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            936
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     216,302,746
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                        148,309
<OVERDIST-NET-GAINS-PRIOR>                     539,186
<GROSS-ADVISORY-FEES>                          505,202
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                979,484
<AVERAGE-NET-ASSETS>                       119,856,157
<PER-SHARE-NAV-BEGIN>                             9.23
<PER-SHARE-NII>                                    .01
<PER-SHARE-GAIN-APPREC>                            .91
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.15
<EXPENSE-RATIO>                                   1.50
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 601
   <NAME> GOLDMAN SACHS CORE LARGE CAP GROWTH FUND-CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      302,189,309
<INVESTMENTS-AT-VALUE>                     314,110,080
<RECEIVABLES>                                4,671,711
<ASSETS-OTHER>                                 249,575
<OTHER-ITEMS-ASSETS>                            29,294
<TOTAL-ASSETS>                             319,030,660
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      826,337
<TOTAL-LIABILITIES>                            826,337
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   299,819,035
<SHARES-COMMON-STOCK>                        8,381,989
<SHARES-COMMON-PRIOR>                        4,491,866
<ACCUMULATED-NII-CURRENT>                       73,976
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      6,493,653
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    11,817,659
<NET-ASSETS>                               318,204,323
<DIVIDEND-INCOME>                              648,922
<INTEREST-INCOME>                              310,863
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 869,145
<NET-INVESTMENT-INCOME>                         90,640
<REALIZED-GAINS-CURRENT>                     6,987,493
<APPREC-INCREASE-CURRENT>                    6,798,385
<NET-CHANGE-FROM-OPS>                       13,876,518
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      4,324,879
<NUMBER-OF-SHARES-REDEEMED>                    434,756
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     241,658,170
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                         16,664
<OVERDIST-NET-GAINS-PRIOR>                     493,840
<GROSS-ADVISORY-FEES>                          663,785
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,389,715
<AVERAGE-NET-ASSETS>                       178,476,423
<PER-SHARE-NAV-BEGIN>                            11.97
<PER-SHARE-NII>                                    .01
<PER-SHARE-GAIN-APPREC>                           1.97
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.95
<EXPENSE-RATIO>                                    .90
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 602
   <NAME> GOLDMAN SACHS CORE LARGE CAP GROWTH FUND-CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      302,189,309
<INVESTMENTS-AT-VALUE>                     314,110,080
<RECEIVABLES>                                4,671,711
<ASSETS-OTHER>                                 249,575
<OTHER-ITEMS-ASSETS>                            29,294
<TOTAL-ASSETS>                             319,030,660
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      826,337
<TOTAL-LIABILITIES>                            826,337
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   299,819,035
<SHARES-COMMON-STOCK>                        3,602,353
<SHARES-COMMON-PRIOR>                        1,162,113
<ACCUMULATED-NII-CURRENT>                       73,976
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      6,493,653
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    11,817,659
<NET-ASSETS>                               318,204,323
<DIVIDEND-INCOME>                              648,922
<INTEREST-INCOME>                              310,863
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 869,145
<NET-INVESTMENT-INCOME>                         90,640
<REALIZED-GAINS-CURRENT>                     6,987,493
<APPREC-INCREASE-CURRENT>                    6,798,385
<NET-CHANGE-FROM-OPS>                       13,876,518
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      2,555,049
<NUMBER-OF-SHARES-REDEEMED>                    114,809
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     241,658,170
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                         16,664
<OVERDIST-NET-GAINS-PRIOR>                     493,840
<GROSS-ADVISORY-FEES>                          663,785
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,389,715
<AVERAGE-NET-ASSETS>                       178,476,423
<PER-SHARE-NAV-BEGIN>                            11.92
<PER-SHARE-NII>                                  (.02)
<PER-SHARE-GAIN-APPREC>                           1.95
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.85
<EXPENSE-RATIO>                                   1.65
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 607
   <NAME> GOLDMAN SACHS CORE LARGE CAP GROWTH FUND-CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      302,189,309
<INVESTMENTS-AT-VALUE>                     314,110,080
<RECEIVABLES>                                4,671,711
<ASSETS-OTHER>                                 249,575
<OTHER-ITEMS-ASSETS>                            29,294
<TOTAL-ASSETS>                             319,030,660
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      826,337
<TOTAL-LIABILITIES>                            826,337
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   299,819,035
<SHARES-COMMON-STOCK>                        1,136,062
<SHARES-COMMON-PRIOR>                          346,492
<ACCUMULATED-NII-CURRENT>                       73,976
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      6,493,653
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    11,817,659
<NET-ASSETS>                               318,204,323
<DIVIDEND-INCOME>                              648,922
<INTEREST-INCOME>                              310,863
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 869,145
<NET-INVESTMENT-INCOME>                         90,640
<REALIZED-GAINS-CURRENT>                     6,987,493
<APPREC-INCREASE-CURRENT>                    6,798,385
<NET-CHANGE-FROM-OPS>                       13,876,518
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        832,280
<NUMBER-OF-SHARES-REDEEMED>                     42,710
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     241,658,170
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                         16,664
<OVERDIST-NET-GAINS-PRIOR>                     493,840
<GROSS-ADVISORY-FEES>                          663,785
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,389,715
<AVERAGE-NET-ASSETS>                       178,476,423
<PER-SHARE-NAV-BEGIN>                            11.93
<PER-SHARE-NII>                                  (.02)
<PER-SHARE-GAIN-APPREC>                           1.93
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.84
<EXPENSE-RATIO>                                   1.65
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 603
   <NAME> GOLDMAN SACHS CORE LARGE CAP GROWTH FUND-INST.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      302,189,309
<INVESTMENTS-AT-VALUE>                     314,110,080
<RECEIVABLES>                                4,671,711
<ASSETS-OTHER>                                 249,575
<OTHER-ITEMS-ASSETS>                            29,294
<TOTAL-ASSETS>                             319,030,660
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      826,337
<TOTAL-LIABILITIES>                            826,337
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   299,819,035
<SHARES-COMMON-STOCK>                        9,676,665
<SHARES-COMMON-PRIOR>                          388,928
<ACCUMULATED-NII-CURRENT>                       73,976
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      6,493,653
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    11,817,659
<NET-ASSETS>                               318,204,323
<DIVIDEND-INCOME>                              648,922
<INTEREST-INCOME>                              310,863
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 869,145
<NET-INVESTMENT-INCOME>                         90,640
<REALIZED-GAINS-CURRENT>                     6,987,493
<APPREC-INCREASE-CURRENT>                    6,798,385
<NET-CHANGE-FROM-OPS>                       13,876,518
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                     10,196,002
<NUMBER-OF-SHARES-REDEEMED>                    908,265
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     241,658,170
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                         16,664
<OVERDIST-NET-GAINS-PRIOR>                     493,840
<GROSS-ADVISORY-FEES>                          663,785
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,389,715
<AVERAGE-NET-ASSETS>                       178,476,423
<PER-SHARE-NAV-BEGIN>                            11.97
<PER-SHARE-NII>                                    .01
<PER-SHARE-GAIN-APPREC>                           1.99
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.97
<EXPENSE-RATIO>                                    .65
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 606
   <NAME> GOLDMAN SACHS CORE LARGE CAP GROWTH FUND-SERV.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      302,189,309
<INVESTMENTS-AT-VALUE>                     314,110,080
<RECEIVABLES>                                4,671,711
<ASSETS-OTHER>                                 249,575
<OTHER-ITEMS-ASSETS>                            29,294
<TOTAL-ASSETS>                             319,030,660
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      826,337
<TOTAL-LIABILITIES>                            826,337
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   299,819,035
<SHARES-COMMON-STOCK>                           36,483
<SHARES-COMMON-PRIOR>                            9,619
<ACCUMULATED-NII-CURRENT>                       73,976
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      6,493,653
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    11,817,659
<NET-ASSETS>                               318,204,323
<DIVIDEND-INCOME>                              648,922
<INTEREST-INCOME>                              310,863
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 869,145
<NET-INVESTMENT-INCOME>                         90,640
<REALIZED-GAINS-CURRENT>                     6,987,493
<APPREC-INCREASE-CURRENT>                    6,798,385
<NET-CHANGE-FROM-OPS>                       13,876,518
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         26,864
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     241,658,170
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                         16,664
<OVERDIST-NET-GAINS-PRIOR>                     493,840
<GROSS-ADVISORY-FEES>                          663,785
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,389,715
<AVERAGE-NET-ASSETS>                       178,476,423
<PER-SHARE-NAV-BEGIN>                            11.95
<PER-SHARE-NII>                                      0
<PER-SHARE-GAIN-APPREC>                           1.96
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.91
<EXPENSE-RATIO>                                   1.15
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 621
   <NAME> GOLDMAN SACHS CORE SMALL CAP EQUITY FUND-CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       87,076,392
<INVESTMENTS-AT-VALUE>                      84,046,673
<RECEIVABLES>                                1,059,729
<ASSETS-OTHER>                                 130,033
<OTHER-ITEMS-ASSETS>                            42,855
<TOTAL-ASSETS>                              85,279,290
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      378,321
<TOTAL-LIABILITIES>                            378,321
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    88,874,445
<SHARES-COMMON-STOCK>                        1,961,650
<SHARES-COMMON-PRIOR>                        1,049,487
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                          20,240
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                       698,317
<ACCUM-APPREC-OR-DEPREC>                   (3,254,919)
<NET-ASSETS>                                84,900,969
<DIVIDEND-INCOME>                              321,912
<INTEREST-INCOME>                              107,869
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 414,347
<NET-INVESTMENT-INCOME>                         15,434
<REALIZED-GAINS-CURRENT>                     (312,290)
<APPREC-INCREASE-CURRENT>                  (4,017,862)
<NET-CHANGE-FROM-OPS>                      (4,314,718)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      1,150,036
<NUMBER-OF-SHARES-REDEEMED>                    237,873
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      52,240,594
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                         35,674
<OVERDIST-NET-GAINS-PRIOR>                     386,027
<GROSS-ADVISORY-FEES>                          268,291
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                638,074
<AVERAGE-NET-ASSETS>                        63,650,418
<PER-SHARE-NAV-BEGIN>                            10.59
<PER-SHARE-NII>                                      0
<PER-SHARE-GAIN-APPREC>                            .11
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.70
<EXPENSE-RATIO>                                   1.25
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 622
   <NAME> GOLDMAN SACHS CORE SMALL CAP EQUITY FUND-CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       87,076,392
<INVESTMENTS-AT-VALUE>                      84,046,673
<RECEIVABLES>                                1,059,729
<ASSETS-OTHER>                                 130,033
<OTHER-ITEMS-ASSETS>                            42,855
<TOTAL-ASSETS>                              85,279,290
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      378,321
<TOTAL-LIABILITIES>                            378,321
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    88,874,445
<SHARES-COMMON-STOCK>                        1,396,084
<SHARES-COMMON-PRIOR>                          942,850
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                          20,240
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                       698,317
<ACCUM-APPREC-OR-DEPREC>                   (3,254,919)
<NET-ASSETS>                                84,900,969
<DIVIDEND-INCOME>                              321,912
<INTEREST-INCOME>                              107,869
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 414,347
<NET-INVESTMENT-INCOME>                         15,434
<REALIZED-GAINS-CURRENT>                     (312,290)
<APPREC-INCREASE-CURRENT>                  (4,017,862)
<NET-CHANGE-FROM-OPS>                      (4,314,718)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        494,617
<NUMBER-OF-SHARES-REDEEMED>                     41,383
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      52,240,594
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                         35,674
<OVERDIST-NET-GAINS-PRIOR>                     386,027
<GROSS-ADVISORY-FEES>                          268,291
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                638,074
<AVERAGE-NET-ASSETS>                        63,650,418
<PER-SHARE-NAV-BEGIN>                            10.56
<PER-SHARE-NII>                                  (.03)
<PER-SHARE-GAIN-APPREC>                            .10
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.63
<EXPENSE-RATIO>                                   1.95
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 627
   <NAME> GOLDMAN SACHS CORE SMALL CAP EQUITY FUND-CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       87,076,392
<INVESTMENTS-AT-VALUE>                      84,046,673
<RECEIVABLES>                                1,059,729
<ASSETS-OTHER>                                 130,033
<OTHER-ITEMS-ASSETS>                            42,855
<TOTAL-ASSETS>                              85,279,290
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      378,321
<TOTAL-LIABILITIES>                            378,321
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    88,874,445
<SHARES-COMMON-STOCK>                          416,656
<SHARES-COMMON-PRIOR>                          242,025
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                          20,240
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                       698,317
<ACCUM-APPREC-OR-DEPREC>                   (3,254,919)
<NET-ASSETS>                                84,900,969
<DIVIDEND-INCOME>                              321,912
<INTEREST-INCOME>                              107,869
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 414,347
<NET-INVESTMENT-INCOME>                         15,434
<REALIZED-GAINS-CURRENT>                     (312,290)
<APPREC-INCREASE-CURRENT>                  (4,017,862)
<NET-CHANGE-FROM-OPS>                      (4,314,718)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        209,566
<NUMBER-OF-SHARES-REDEEMED>                     34,935
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      52,240,594
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                         35,674
<OVERDIST-NET-GAINS-PRIOR>                     386,027
<GROSS-ADVISORY-FEES>                          268,291
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                638,074
<AVERAGE-NET-ASSETS>                        63,650,418
<PER-SHARE-NAV-BEGIN>                            10.57
<PER-SHARE-NII>                                  (.03)
<PER-SHARE-GAIN-APPREC>                            .10
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.73
<EXPENSE-RATIO>                                   1.95
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 623
   <NAME> GOLDMAN SACHS CORE SMALL CAP EQUITY FUND-INST.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       87,076,392
<INVESTMENTS-AT-VALUE>                      84,046,673
<RECEIVABLES>                                1,059,729
<ASSETS-OTHER>                                 130,033
<OTHER-ITEMS-ASSETS>                            42,855
<TOTAL-ASSETS>                              85,279,290
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      378,321
<TOTAL-LIABILITIES>                            378,321
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    88,874,445
<SHARES-COMMON-STOCK>                        4,156,687
<SHARES-COMMON-PRIOR>                          850,858
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                          20,240
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                       698,317
<ACCUM-APPREC-OR-DEPREC>                   (3,254,919)
<NET-ASSETS>                                84,900,969
<DIVIDEND-INCOME>                              321,912
<INTEREST-INCOME>                              107,869
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 414,347
<NET-INVESTMENT-INCOME>                         15,434
<REALIZED-GAINS-CURRENT>                     (312,290)
<APPREC-INCREASE-CURRENT>                  (4,017,862)
<NET-CHANGE-FROM-OPS>                      (4,314,718)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      3,503,433
<NUMBER-OF-SHARES-REDEEMED>                  2,343,275
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      52,240,594
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                         35,674
<OVERDIST-NET-GAINS-PRIOR>                     386,027
<GROSS-ADVISORY-FEES>                          268,291
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                638,074
<AVERAGE-NET-ASSETS>                        63,650,418
<PER-SHARE-NAV-BEGIN>                            10.61
<PER-SHARE-NII>                                    .02
<PER-SHARE-GAIN-APPREC>                            .10
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.73
<EXPENSE-RATIO>                                    .95
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 626
   <NAME> GOLDMAN SACHS CORE SMALL CAP EQUITY FUND-SERV.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       87,076,392
<INVESTMENTS-AT-VALUE>                      84,046,673
<RECEIVABLES>                                1,059,729
<ASSETS-OTHER>                                 130,033
<OTHER-ITEMS-ASSETS>                            42,855
<TOTAL-ASSETS>                              85,279,290
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      378,321
<TOTAL-LIABILITIES>                            378,321
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    88,874,445
<SHARES-COMMON-STOCK>                            2,099
<SHARES-COMMON-PRIOR>                              160
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                          20,240
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                       698,317
<ACCUM-APPREC-OR-DEPREC>                   (3,254,919)
<NET-ASSETS>                                84,900,969
<DIVIDEND-INCOME>                              321,912
<INTEREST-INCOME>                              107,869
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 414,347
<NET-INVESTMENT-INCOME>                         15,434
<REALIZED-GAINS-CURRENT>                     (312,290)
<APPREC-INCREASE-CURRENT>                  (4,017,862)
<NET-CHANGE-FROM-OPS>                      (4,314,718)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          1,939
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      52,240,594
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                         35,674
<OVERDIST-NET-GAINS-PRIOR>                     386,027
<GROSS-ADVISORY-FEES>                          268,291
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                638,074
<AVERAGE-NET-ASSETS>                        63,650,418
<PER-SHARE-NAV-BEGIN>                            10.60
<PER-SHARE-NII>                                  (.01)
<PER-SHARE-GAIN-APPREC>                            .11
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.70
<EXPENSE-RATIO>                                   1.45
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 591
   <NAME> GOLDMAN SACHS CORE US EQUITY FUND-CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      750,558,240
<INVESTMENTS-AT-VALUE>                     952,208,449
<RECEIVABLES>                                6,748,888
<ASSETS-OTHER>                                  80,182
<OTHER-ITEMS-ASSETS>                            77,690
<TOTAL-ASSETS>                             959,115,209
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    4,240,401
<TOTAL-LIABILITIES>                          4,240,401
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   708,284,493
<SHARES-COMMON-STOCK>                       17,461,477
<SHARES-COMMON-PRIOR>                       14,985,404
<ACCUMULATED-NII-CURRENT>                    1,531,939
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     44,084,376
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   200,974,000
<NET-ASSETS>                               954,874,808
<DIVIDEND-INCOME>                            5,658,623
<INTEREST-INCOME>                              534,719
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               4,736,436
<NET-INVESTMENT-INCOME>                      1,456,906
<REALIZED-GAINS-CURRENT>                    39,568,896
<APPREC-INCREASE-CURRENT>                   51,053,647
<NET-CHANGE-FROM-OPS>                       92,079,449
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      4,373,115
<NUMBER-OF-SHARES-REDEEMED>                  1,897,042
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     280,272,678
<ACCUMULATED-NII-PRIOR>                         75,033
<ACCUMULATED-GAINS-PRIOR>                    4,515,480
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        3,135,590
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              5,447,353
<AVERAGE-NET-ASSETS>                       843,086,650
<PER-SHARE-NAV-BEGIN>                            26.59
<PER-SHARE-NII>                                    .03
<PER-SHARE-GAIN-APPREC>                           3.61
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              30.23
<EXPENSE-RATIO>                                   1.26
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 592
   <NAME> GOLDMAN SACHS CORE US EQUITY FUND-CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      750,558,240
<INVESTMENTS-AT-VALUE>                     952,208,449
<RECEIVABLES>                                6,748,888
<ASSETS-OTHER>                                  80,812
<OTHER-ITEMS-ASSETS>                            77,690
<TOTAL-ASSETS>                             959,115,209
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    4,240,401
<TOTAL-LIABILITIES>                          4,240,401
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   708,284,493
<SHARES-COMMON-STOCK>                        3,435,462
<SHARES-COMMON-PRIOR>                        2,249,148
<ACCUMULATED-NII-CURRENT>                    1,531,939
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     44,084,376
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   200,974,000
<NET-ASSETS>                               954,874,808
<DIVIDEND-INCOME>                            5,658,623
<INTEREST-INCOME>                              534,719
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               4,736,436
<NET-INVESTMENT-INCOME>                      1,456,906
<REALIZED-GAINS-CURRENT>                    39,568,896
<APPREC-INCREASE-CURRENT>                   51,053,647
<NET-CHANGE-FROM-OPS>                       92,079,449
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      1,357,106
<NUMBER-OF-SHARES-REDEEMED>                    170,792
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     280,272,678
<ACCUMULATED-NII-PRIOR>                         75,033
<ACCUMULATED-GAINS-PRIOR>                    4,515,480
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        3,135,590
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              5,447,353
<AVERAGE-NET-ASSETS>                       843,086,650
<PER-SHARE-NAV-BEGIN>                            26.32
<PER-SHARE-NII>                                  (.04)
<PER-SHARE-GAIN-APPREC>                           3.58
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              29.86
<EXPENSE-RATIO>                                   1.76
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 597
   <NAME> GOLDMAN SACHS CORE US EQUITY FUND-CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      750,558,240
<INVESTMENTS-AT-VALUE>                     952,208,449
<RECEIVABLES>                                6,748,888
<ASSETS-OTHER>                                  80,182
<OTHER-ITEMS-ASSETS>                            77,690
<TOTAL-ASSETS>                             959,115,209
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    4,240,401
<TOTAL-LIABILITIES>                          4,240,401
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   708,284,493
<SHARES-COMMON-STOCK>                          514,584
<SHARES-COMMON-PRIOR>                          238,838
<ACCUMULATED-NII-CURRENT>                    1,531,939
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     44,084,376
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   200,974,000
<NET-ASSETS>                               954,874,808
<DIVIDEND-INCOME>                            5,658,623
<INTEREST-INCOME>                              534,719
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               4,736,436
<NET-INVESTMENT-INCOME>                      1,456,906
<REALIZED-GAINS-CURRENT>                    39,568,896
<APPREC-INCREASE-CURRENT>                   51,053,647
<NET-CHANGE-FROM-OPS>                       92,079,449
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        298,123
<NUMBER-OF-SHARES-REDEEMED>                     22,377
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     280,272,678
<ACCUMULATED-NII-PRIOR>                         75,033
<ACCUMULATED-GAINS-PRIOR>                    4,515,480
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        3,135,590
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              5,447,353
<AVERAGE-NET-ASSETS>                       843,086,650
<PER-SHARE-NAV-BEGIN>                            26.24
<PER-SHARE-NII>                                  (.04)
<PER-SHARE-GAIN-APPREC>                           3.56
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              29.76
<EXPENSE-RATIO>                                   1.76
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENC TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 593
   <NAME> GOLDMAN SACHS CORE US EQUITY FUND-INST.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      750,558,240
<INVESTMENTS-AT-VALUE>                     952,208,449
<RECEIVABLES>                                6,748,888
<ASSETS-OTHER>                                  80,182
<OTHER-ITEMS-ASSETS>                            77,690
<TOTAL-ASSETS>                             959,115,209
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    4,240,401
<TOTAL-LIABILITIES>                          4,240,401
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   708,284,493
<SHARES-COMMON-STOCK>                        9,782,463
<SHARES-COMMON-PRIOR>                        7,573,189
<ACCUMULATED-NII-CURRENT>                    1,531,939
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     44,084,376
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   200,974,000
<NET-ASSETS>                               954,874,808
<DIVIDEND-INCOME>                            5,658,623
<INTEREST-INCOME>                              534,719
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               4,736,436
<NET-INVESTMENT-INCOME>                      1,456,906
<REALIZED-GAINS-CURRENT>                    39,568,896
<APPREC-INCREASE-CURRENT>                   51,053,647
<NET-CHANGE-FROM-OPS>                       92,079,449
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      2,373,307
<NUMBER-OF-SHARES-REDEEMED>                    164,033
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     280,272,678
<ACCUMULATED-NII-PRIOR>                         75,033
<ACCUMULATED-GAINS-PRIOR>                    4,515,480
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        3,135,590
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              5,447,353
<AVERAGE-NET-ASSETS>                       843,086,650
<PER-SHARE-NAV-BEGIN>                            26.79
<PER-SHARE-NII>                                    .10
<PER-SHARE-GAIN-APPREC>                           3.66
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              30.55
<EXPENSE-RATIO>                                    .65
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 596
   <NAME> GOLDMAN SACHS CORE US EQUITY FUND-SERV.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      750,558,240
<INVESTMENTS-AT-VALUE>                     952,208,449
<RECEIVABLES>                                6,748,888
<ASSETS-OTHER>                                  80,182
<OTHER-ITEMS-ASSETS>                            77,690
<TOTAL-ASSETS>                             959,115,209
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    4,240,401
<TOTAL-LIABILITIES>                          4,240,401
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   708,284,493
<SHARES-COMMON-STOCK>                          344,244
<SHARES-COMMON-PRIOR>                          295,570
<ACCUMULATED-NII-CURRENT>                    1,531,939
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     44,084,376
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   200,974,000
<NET-ASSETS>                               954,874,808
<DIVIDEND-INCOME>                            5,658,623
<INTEREST-INCOME>                              534,719
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               4,736,436
<NET-INVESTMENT-INCOME>                      1,456,906
<REALIZED-GAINS-CURRENT>                    39,568,896
<APPREC-INCREASE-CURRENT>                   51,053,647
<NET-CHANGE-FROM-OPS>                       92,079,449
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         74,235
<NUMBER-OF-SHARES-REDEEMED>                     25,561
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     280,272,678
<ACCUMULATED-NII-PRIOR>                         75,033
<ACCUMULATED-GAINS-PRIOR>                    4,515,480
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        3,135,590
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              5,447,353
<AVERAGE-NET-ASSETS>                       843,086,650
<PER-SHARE-NAV-BEGIN>                            26.53
<PER-SHARE-NII>                                    .05
<PER-SHARE-GAIN-APPREC>                           3.60
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              30.18
<EXPENSE-RATIO>                                   1.15
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 581
   <NAME> GOLDMAN SACHS EMERGING MARKETS EQUITY FUND-CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      177,954,882
<INVESTMENTS-AT-VALUE>                     151,465,470
<RECEIVABLES>                                1,616,061
<ASSETS-OTHER>                                 191,740
<OTHER-ITEMS-ASSETS>                         3,012,499
<TOTAL-ASSETS>                             156,285,770
<PAYABLE-FOR-SECURITIES>                       553,408
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      527,313
<TOTAL-LIABILITIES>                          1,080,721
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   180,231,729
<SHARES-COMMON-STOCK>                        5,957,974
<SHARES-COMMON-PRIOR>                        1,824,207
<ACCUMULATED-NII-CURRENT>                    1,078,534
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        510,450
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (26,615,664)
<NET-ASSETS>                               155,205,049
<DIVIDEND-INCOME>                            1,485,665
<INTEREST-INCOME>                              446,293
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 873,296
<NET-INVESTMENT-INCOME>                      1,058,662
<REALIZED-GAINS-CURRENT>                       532,904
<APPREC-INCREASE-CURRENT>                 (25,752,101)
<NET-CHANGE-FROM-OPS>                     (24,160,535)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      5,166,538
<NUMBER-OF-SHARES-REDEEMED>                  1,032,771
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     118,266,011
<ACCUMULATED-NII-PRIOR>                          6,210
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                       8,792
<GROSS-ADVISORY-FEES>                          642,999
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,151,772
<AVERAGE-NET-ASSETS>                       108,054,607
<PER-SHARE-NAV-BEGIN>                             9.69
<PER-SHARE-NII>                                    .04
<PER-SHARE-GAIN-APPREC>                            .94
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               8.79
<EXPENSE-RATIO>                                   2.17
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 582
   <NAME> GOLDMAN SACHS EMERGING MARKETS EQUITY FUND-CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      177,954,882
<INVESTMENTS-AT-VALUE>                     151,465,470
<RECEIVABLES>                                1,616,061
<ASSETS-OTHER>                                 191,740
<OTHER-ITEMS-ASSETS>                         3,012,499
<TOTAL-ASSETS>                             156,285,770
<PAYABLE-FOR-SECURITIES>                       553,408
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      527,313
<TOTAL-LIABILITIES>                          1,080,721
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   180,231,729
<SHARES-COMMON-STOCK>                           49,880
<SHARES-COMMON-PRIOR>                            6,579
<ACCUMULATED-NII-CURRENT>                    1,078,534
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        510,450
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (26,615,664)
<NET-ASSETS>                               115,205,049
<DIVIDEND-INCOME>                            1,485,665
<INTEREST-INCOME>                              446,293
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 873,296
<NET-INVESTMENT-INCOME>                      1,058,662
<REALIZED-GAINS-CURRENT>                       532,904
<APPREC-INCREASE-CURRENT>                 (25,752,101)
<NET-CHANGE-FROM-OPS>                     (24,160,535)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         45,829
<NUMBER-OF-SHARES-REDEEMED>                      2,528
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     118,266,011
<ACCUMULATED-NII-PRIOR>                          6,210
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                       8,792
<GROSS-ADVISORY-FEES>                          642,999
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,151,772
<AVERAGE-NET-ASSETS>                       108,054,607
<PER-SHARE-NAV-BEGIN>                             9.69
<PER-SHARE-NII>                                    .02
<PER-SHARE-GAIN-APPREC>                            .93
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               8.79
<EXPENSE-RATIO>                                   2.67
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 587
   <NAME> GOLDMAN SACHS EMERGING MARKETS EQUITY FUND-CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      177,954,882
<INVESTMENTS-AT-VALUE>                     151,465,470
<RECEIVABLES>                                1,616,061
<ASSETS-OTHER>                                 191,740
<OTHER-ITEMS-ASSETS>                         3,012,499
<TOTAL-ASSETS>                             156,285,770
<PAYABLE-FOR-SECURITIES>                       553,408
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      527,313
<TOTAL-LIABILITIES>                          1,080,721
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   180,231,729
<SHARES-COMMON-STOCK>                           28,661
<SHARES-COMMON-PRIOR>                            7,520
<ACCUMULATED-NII-CURRENT>                    1,078,534
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        510,450
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (26,615,664)
<NET-ASSETS>                               155,205,049
<DIVIDEND-INCOME>                            1,485,665
<INTEREST-INCOME>                              446,293
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 873,296
<NET-INVESTMENT-INCOME>                      1,058,662
<REALIZED-GAINS-CURRENT>                       532,904
<APPREC-INCREASE-CURRENT>                 (25,752,101)
<NET-CHANGE-FROM-OPS>                     (24,160,535)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         24,991
<NUMBER-OF-SHARES-REDEEMED>                      3,850
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     118,266,011
<ACCUMULATED-NII-PRIOR>                          6,210
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                       8,792
<GROSS-ADVISORY-FEES>                          642,999
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,151,772
<AVERAGE-NET-ASSETS>                       108,054,607
<PER-SHARE-NAV-BEGIN>                             9.70
<PER-SHARE-NII>                                    .03
<PER-SHARE-GAIN-APPREC>                            .94
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               8.79
<EXPENSE-RATIO>                                   2.67
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 583
   <NAME> GOLDMAN SACHS EMERGING MARKETS EQUITY FUND-INST.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      177,954,882
<INVESTMENTS-AT-VALUE>                     151,465,470
<RECEIVABLES>                                1,616,061
<ASSETS-OTHER>                                 191,740
<OTHER-ITEMS-ASSETS>                         3,012,499
<TOTAL-ASSETS>                             156,285,770
<PAYABLE-FOR-SECURITIES>                       553,408
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      527,313
<TOTAL-LIABILITIES>                          1,080,721
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   180,231,729
<SHARES-COMMON-STOCK>                       11,546,320
<SHARES-COMMON-PRIOR>                        1,971,850
<ACCUMULATED-NII-CURRENT>                    1,078,534
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        510,450
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (26,615,664)
<NET-ASSETS>                               155,205,049
<DIVIDEND-INCOME>                            1,485,665
<INTEREST-INCOME>                              446,293
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 873,296
<NET-INVESTMENT-INCOME>                      1,058,662
<REALIZED-GAINS-CURRENT>                       532,904
<APPREC-INCREASE-CURRENT>                 (25,752,101)
<NET-CHANGE-FROM-OPS>                     (24,160,535)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                     10,666,551
<NUMBER-OF-SHARES-REDEEMED>                  1,092,081
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     118,266,011
<ACCUMULATED-NII-PRIOR>                          6,210
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                       8,792
<GROSS-ADVISORY-FEES>                          642,999
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,151,772
<AVERAGE-NET-ASSETS>                       108,054,607
<PER-SHARE-NAV-BEGIN>                             9.70
<PER-SHARE-NII>                                    .06
<PER-SHARE-GAIN-APPREC>                            .92
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               8.79
<EXPENSE-RATIO>                                   1.30
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 586
   <NAME> GOLDMAN SACHS EMERGING MARKETS EQUITY FUND-SERV.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      177,954,882
<INVESTMENTS-AT-VALUE>                     151,465,470
<RECEIVABLES>                                1,616,061
<ASSETS-OTHER>                                 191,740
<OTHER-ITEMS-ASSETS>                         3,012,499
<TOTAL-ASSETS>                             156,285,770
<PAYABLE-FOR-SECURITIES>                       553,408
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      527,313
<TOTAL-LIABILITIES>                          1,080,721
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   180,231,729
<SHARES-COMMON-STOCK>                              160
<SHARES-COMMON-PRIOR>                              160
<ACCUMULATED-NII-CURRENT>                    1,078,534
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        510,450
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (26,615,664)
<NET-ASSETS>                               115,205,049
<DIVIDEND-INCOME>                            1,485,665
<INTEREST-INCOME>                              446,293
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 873,296
<NET-INVESTMENT-INCOME>                      1,058,662
<REALIZED-GAINS-CURRENT>                       532,904
<APPREC-INCREASE-CURRENT>                 (25,752,101)
<NET-CHANGE-FROM-OPS>                     (24,160,535)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     118,266,011
<ACCUMULATED-NII-PRIOR>                          6,210
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                       8,792
<GROSS-ADVISORY-FEES>                          642,999
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                            108,054,607
<AVERAGE-NET-ASSETS>                             1,583
<PER-SHARE-NAV-BEGIN>                             9.69
<PER-SHARE-NII>                                  (.13)
<PER-SHARE-GAIN-APPREC>                            .94
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               8.79
<EXPENSE-RATIO>                                   1.80
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 521
   <NAME> GOLDMAN SACHS GROWTH AND INCOME FUND-CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1998
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                    2,037,859,226
<INVESTMENTS-AT-VALUE>                   2,019,787,384
<RECEIVABLES>                               64,997,709
<ASSETS-OTHER>                                  79,128
<OTHER-ITEMS-ASSETS>                            51,751
<TOTAL-ASSETS>                           2,084,915,972
<PAYABLE-FOR-SECURITIES>                    31,806,432
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   12,415,939
<TOTAL-LIABILITIES>                         44,222,371
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,909,601,006
<SHARES-COMMON-STOCK>                       53,147,731
<SHARES-COMMON-PRIOR>                       46,918,649
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                         376,702
<ACCUMULATED-NET-GAINS>                    149,541,139
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (18,071,842)
<NET-ASSETS>                             2,040,693,601
<DIVIDEND-INCOME>                           14,756,464
<INTEREST-INCOME>                            3,797,985
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              13,467,782
<NET-INVESTMENT-INCOME>                      5,086,667
<REALIZED-GAINS-CURRENT>                    89,244,504
<APPREC-INCREASE-CURRENT>                (162,876,752)
<NET-CHANGE-FROM-OPS>                     (68,545,581)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    4,157,463
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                     13,263,555
<NUMBER-OF-SHARES-REDEEMED>                  7,175,413
<SHARES-REINVESTED>                            140,940
<NET-CHANGE-IN-ASSETS>                     439,492,470
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                   60,296,635
<OVERDISTRIB-NII-PRIOR>                        614,031
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        7,017,056
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             14,595,666
<AVERAGE-NET-ASSETS>                     2,021,488,177
<PER-SHARE-NAV-BEGIN>                            25.93
<PER-SHARE-NII>                                    .09
<PER-SHARE-GAIN-APPREC>                          (.41)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                          .08
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              25.53
<EXPENSE-RATIO>                                   1.22
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 522
   <NAME> GOLDMAN SACHS GROWTH AND INCOME FUND-CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                    2,037,859,226
<INVESTMENTS-AT-VALUE>                   2,019,787,384
<RECEIVABLES>                               64,997,709
<ASSETS-OTHER>                                  79,128
<OTHER-ITEMS-ASSETS>                            51,751
<TOTAL-ASSETS>                           2,084,915,972
<PAYABLE-FOR-SECURITIES>                    31,806,432
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   12,415,939
<TOTAL-LIABILITIES>                         44,222,371
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,909,601,006
<SHARES-COMMON-STOCK>                       16,448,379
<SHARES-COMMON-PRIOR>                       11,963,607
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                         376,702
<ACCUMULATED-NET-GAINS>                    149,541,139
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (18,071,842)
<NET-ASSETS>                             2,040,693,601
<DIVIDEND-INCOME>                           14,756,464
<INTEREST-INCOME>                            3,797,985
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              13,467,782
<NET-INVESTMENT-INCOME>                      5,086,667
<REALIZED-GAINS-CURRENT>                    89,244,504
<APPREC-INCREASE-CURRENT>                (162,876,752)
<NET-CHANGE-FROM-OPS>                     (68,545,581)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      5,734,215
<NUMBER-OF-SHARES-REDEEMED>                  1,249,443
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     439,492,470
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                   60,296,635
<OVERDISTRIB-NII-PRIOR>                        614,031
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        7,017,056
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             14,595,666
<AVERAGE-NET-ASSETS>                     2,021,488,117
<PER-SHARE-NAV-BEGIN>                            25.73
<PER-SHARE-NII>                                      0
<PER-SHARE-GAIN-APPREC>                          (.41)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              25.32
<EXPENSE-RATIO>                                   1.88
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 527
   <NAME> GOLDMAN SACHS GROWTH AND INCOME FUND-CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                    2,037,859,226
<INVESTMENTS-AT-VALUE>                   2,019,787,384
<RECEIVABLES>                               64,997,709
<ASSETS-OTHER>                                  79,128
<OTHER-ITEMS-ASSETS>                            51,751
<TOTAL-ASSETS>                           2,084,915,972
<PAYABLE-FOR-SECURITIES>                    31,806,432
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   12,415,939
<TOTAL-LIABILITIES>                         44,222,371
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,909,601,006
<SHARES-COMMON-STOCK>                        2,495,856
<SHARES-COMMON-PRIOR>                        1,233,014
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                         376,702
<ACCUMULATED-NET-GAINS>                    149,541,139
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (18,071,842)
<NET-ASSETS>                             2,040,693,601
<DIVIDEND-INCOME>                           14,756,464
<INTEREST-INCOME>                            3,797,985
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              13,467,782
<NET-INVESTMENT-INCOME>                      5,086,667
<REALIZED-GAINS-CURRENT>                    89,244,504
<APPREC-INCREASE-CURRENT>                (162,876,752)
<NET-CHANGE-FROM-OPS>                     (68,545,581)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       22,272
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      1,539,698
<NUMBER-OF-SHARES-REDEEMED>                    277,488
<SHARES-REINVESTED>                                632
<NET-CHANGE-IN-ASSETS>                     439,492,470
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                   60,296,635
<OVERDISTRIB-NII-PRIOR>                        614,031
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        7,017,056
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             14,595,666
<AVERAGE-NET-ASSETS>                     2,021,488,177
<PER-SHARE-NAV-BEGIN>                            25.70
<PER-SHARE-NII>                                    .01
<PER-SHARE-GAIN-APPREC>                          (.43)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                          .01
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              25.27
<EXPENSE-RATIO>                                   1.88
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 523
   <NAME> GOLDMAN SACHS GROWTH AND INCOME FUND-INST.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                    2,037,859,226
<INVESTMENTS-AT-VALUE>                   2,019,787,384
<RECEIVABLES>                               64,997,709
<ASSETS-OTHER>                                  79,128
<OTHER-ITEMS-ASSETS>                            51,751
<TOTAL-ASSETS>                           2,084,915,972
<PAYABLE-FOR-SECURITIES>                    31,806,432
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   12,415,939
<TOTAL-LIABILITIES>                         44,222,371
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,909,601,006
<SHARES-COMMON-STOCK>                        7,518,494
<SHARES-COMMON-PRIOR>                        1,396,153
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                         376,702
<ACCUMULATED-NET-GAINS>                    149,541,139
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (18,071,842)
<NET-ASSETS>                             2,040,693,601
<DIVIDEND-INCOME>                           14,756,464
<INTEREST-INCOME>                            3,797,985
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              13,467,782
<NET-INVESTMENT-INCOME>                      5,086,667
<REALIZED-GAINS-CURRENT>                    89,244,504
<APPREC-INCREASE-CURRENT>                (162,876,752)
<NET-CHANGE-FROM-OPS>                     (68,545,581)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      641,067
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      6,710,128
<NUMBER-OF-SHARES-REDEEMED>                    592,594
<SHARES-REINVESTED>                              4,807
<NET-CHANGE-IN-ASSETS>                     439,492,470
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                   60,296,635
<OVERDISTRIB-NII-PRIOR>                        614,031
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        7,017,056
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             14,595,666
<AVERAGE-NET-ASSETS>                     2,021,488,177
<PER-SHARE-NAV-BEGIN>                            25.95
<PER-SHARE-NII>                                    .13
<PER-SHARE-GAIN-APPREC>                          (.40)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                          .13
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              25.55
<EXPENSE-RATIO>                                    .81
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 526
   <NAME> GOLDMAN SACHS GROWTH AND INCOME FUND-SERV.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                    2,037,859,226
<INVESTMENTS-AT-VALUE>                   2,019,787,384
<RECEIVABLES>                               64,997,709
<ASSETS-OTHER>                                  79,128
<OTHER-ITEMS-ASSETS>                            51,751
<TOTAL-ASSETS>                           2,084,915,972
<PAYABLE-FOR-SECURITIES>                    31,806,432
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   12,415,939
<TOTAL-LIABILITIES>                         44,222,371
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,909,601,006
<SHARES-COMMON-STOCK>                          483,317
<SHARES-COMMON-PRIOR>                          343,095
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                         376,702
<ACCUMULATED-NET-GAINS>                    149,541,139
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (18,071,842)
<NET-ASSETS>                             2,040,693,601
<DIVIDEND-INCOME>                           14,756,464
<INTEREST-INCOME>                            3,797,985
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              13,467,782
<NET-INVESTMENT-INCOME>                      5,086,667
<REALIZED-GAINS-CURRENT>                    89,244,504
<APPREC-INCREASE-CURRENT>                (162,876,752)
<NET-CHANGE-FROM-OPS>                     (68,545,581)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       28,536
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        151,968
<NUMBER-OF-SHARES-REDEEMED>                     12,651
<SHARES-REINVESTED>                                905
<NET-CHANGE-IN-ASSETS>                     439,492,470
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                   60,296,635
<OVERDISTRIB-NII-PRIOR>                        614,031
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        7,017,056
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             14,595,666
<AVERAGE-NET-ASSETS>                     2,021,488,177
<PER-SHARE-NAV-BEGIN>                            25.92
<PER-SHARE-NII>                                    .07
<PER-SHARE-GAIN-APPREC>                          (.39)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                          .07
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              25.53
<EXPENSE-RATIO>                                   1.30
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 631
   <NAME> GOLDMAN SACHS INTERNATIONAL SMALL CAP FUND-CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             MAY-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       33,866,031
<INVESTMENTS-AT-VALUE>                      34,487,824
<RECEIVABLES>                                6,367,654
<ASSETS-OTHER>                                  91,192
<OTHER-ITEMS-ASSETS>                             6,915
<TOTAL-ASSETS>                              40,953,585
<PAYABLE-FOR-SECURITIES>                     3,937,386
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      187,089
<TOTAL-LIABILITIES>                          4,124,475
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    35,965,811
<SHARES-COMMON-STOCK>                        2,434,371
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                       19,708
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        211,777
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       631,814
<NET-ASSETS>                                36,829,110
<DIVIDEND-INCOME>                               37,934
<INTEREST-INCOME>                               42,282
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  60,508
<NET-INVESTMENT-INCOME>                         19,708
<REALIZED-GAINS-CURRENT>                       211,777
<APPREC-INCREASE-CURRENT>                      631,814
<NET-CHANGE-FROM-OPS>                          863,299
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      2,435,135
<NUMBER-OF-SHARES-REDEEMED>                        764
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      36,829,110
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           46,263
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                200,919
<AVERAGE-NET-ASSETS>                        15,295,219
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                      0
<PER-SHARE-GAIN-APPREC>                            .62
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.62
<EXPENSE-RATIO>                                   1.90
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 632
   <NAME> GOLDMAN SACHS INTERNATIONAL SMALL CAP FUND-CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             MAY-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       33,866,031
<INVESTMENTS-AT-VALUE>                      34,487,824
<RECEIVABLES>                                6,367,654
<ASSETS-OTHER>                                  91,192
<OTHER-ITEMS-ASSETS>                             6,915
<TOTAL-ASSETS>                              40,953,585
<PAYABLE-FOR-SECURITIES>                     3,937,386
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      187,089
<TOTAL-LIABILITIES>                          4,124,475
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    35,965,811
<SHARES-COMMON-STOCK>                           23,343
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                       19,708
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        211,777
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       631,814
<NET-ASSETS>                                36,829,110
<DIVIDEND-INCOME>                               37,934
<INTEREST-INCOME>                               42,282
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  60,508
<NET-INVESTMENT-INCOME>                         19,708
<REALIZED-GAINS-CURRENT>                       211,777
<APPREC-INCREASE-CURRENT>                      631,814
<NET-CHANGE-FROM-OPS>                          863,299
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         23,362
<NUMBER-OF-SHARES-REDEEMED>                         19
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      36,829,110
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           46,263
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                200,919
<AVERAGE-NET-ASSETS>                        15,295,219
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                  (.01)
<PER-SHARE-GAIN-APPREC>                            .63
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.62
<EXPENSE-RATIO>                                   2.40
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS .

</LEGEND>
<SERIES>
   <NUMBER> 637
   <NAME> GOLDMAN SACHS INTERNATIONAL SMALL CAP FUND-CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             MAY-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       33,866,031
<INVESTMENTS-AT-VALUE>                      34,487,824
<RECEIVABLES>                                6,367,654
<ASSETS-OTHER>                                  91,192
<OTHER-ITEMS-ASSETS>                             6,915
<TOTAL-ASSETS>                              40,953,585
<PAYABLE-FOR-SECURITIES>                     3,937,386
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      187,089
<TOTAL-LIABILITIES>                          4,124,475
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    35,965,811
<SHARES-COMMON-STOCK>                            9,186
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                       19,708
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        211,777
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       631,814
<NET-ASSETS>                                36,829,110
<DIVIDEND-INCOME>                               37,934
<INTEREST-INCOME>                               42,282
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  60,508
<NET-INVESTMENT-INCOME>                         19,708
<REALIZED-GAINS-CURRENT>                       211,777
<APPREC-INCREASE-CURRENT>                      631,814
<NET-CHANGE-FROM-OPS>                          863,299
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          9,186
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      36,829,110
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           46,263
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                200,919
<AVERAGE-NET-ASSETS>                        15,295,219
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                  (.01)
<PER-SHARE-GAIN-APPREC>                            .63
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.62
<EXPENSE-RATIO>                                   2.40
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 633
   <NAME> GOLDMAN SACHS INTERNATIONAL SMALL CAP FUND-INST.
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             MAY-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       33,866,031
<INVESTMENTS-AT-VALUE>                      34,487,824
<RECEIVABLES>                                6,367,654
<ASSETS-OTHER>                                  91,192
<OTHER-ITEMS-ASSETS>                             6,915
<TOTAL-ASSETS>                              40,953,585
<PAYABLE-FOR-SECURITIES>                     3,937,386
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      187,089
<TOTAL-LIABILITIES>                          4,124,475
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    35,965,811
<SHARES-COMMON-STOCK>                        1,000,000
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                       19,708
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        211,777
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       631,814
<NET-ASSETS>                                36,829,110
<DIVIDEND-INCOME>                               37,934
<INTEREST-INCOME>                               42,282
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  60,508
<NET-INVESTMENT-INCOME>                         19,708
<REALIZED-GAINS-CURRENT>                       211,777
<APPREC-INCREASE-CURRENT>                      631,814
<NET-CHANGE-FROM-OPS>                          863,299
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      1,000,000
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      36,829,110
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           46,263
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                200,919
<AVERAGE-NET-ASSETS>                        15,295,219
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                    .03
<PER-SHARE-GAIN-APPREC>                            .60
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.63
<EXPENSE-RATIO>                                   1.40
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.

</LEGEND>
<SERIES>
   <NUMBER> 636
   <NAME> GOLDMAN SACHS INTERNATIONAL SMALL CAP FUND-SERV.
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             MAY-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       33,866,031
<INVESTMENTS-AT-VALUE>                      34,487,824
<RECEIVABLES>                                6,367,654
<ASSETS-OTHER>                                  91,192
<OTHER-ITEMS-ASSETS>                             6,915
<TOTAL-ASSETS>                              40,953,585
<PAYABLE-FOR-SECURITIES>                     3,937,386
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      187,089
<TOTAL-LIABILITIES>                          4,124,475
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    35,965,811
<SHARES-COMMON-STOCK>                              150
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                       19,708
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        211,777
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       631,814
<NET-ASSETS>                                36,829,110
<DIVIDEND-INCOME>                               37,934
<INTEREST-INCOME>                               42,282
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  60,508
<NET-INVESTMENT-INCOME>                         19,708
<REALIZED-GAINS-CURRENT>                       211,777
<APPREC-INCREASE-CURRENT>                      631,814
<NET-CHANGE-FROM-OPS>                          863,299
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            150
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      36,829,110
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           46,263
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                200,919
<AVERAGE-NET-ASSETS>                        15,295,219
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                    .01
<PER-SHARE-GAIN-APPREC>                            .61
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.62
<EXPENSE-RATIO>                                   1.90
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 551
   <NAME> GOLDMAN SACHS INTERNATIONAL EQUITY FUNDS-CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      904,513,056
<INVESTMENTS-AT-VALUE>                   1,087,661,956
<RECEIVABLES>                               28,814,058
<ASSETS-OTHER>                                  70,861
<OTHER-ITEMS-ASSETS>                           215,044
<TOTAL-ASSETS>                           1,116,761,919
<PAYABLE-FOR-SECURITIES>                    14,445,435
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   46,056,827
<TOTAL-LIABILITIES>                         60,502,262
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   831,414,641
<SHARES-COMMON-STOCK>                       38,495,187
<SHARES-COMMON-PRIOR>                       35,149,596
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                       6,495,192
<ACCUMULATED-NET-GAINS>                     46,482,372
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   184,857,836
<NET-ASSETS>                             1,056,259,657
<DIVIDEND-INCOME>                            8,658,965
<INTEREST-INCOME>                            1,025,426
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               8,194,898
<NET-INVESTMENT-INCOME>                      1,489,493
<REALIZED-GAINS-CURRENT>                    65,338,765
<APPREC-INCREASE-CURRENT>                   68,047,123
<NET-CHANGE-FROM-OPS>                      134,875,381
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                     34,723,847
<NUMBER-OF-SHARES-REDEEMED>                 31,378,942
<SHARES-REINVESTED>                                687
<NET-CHANGE-IN-ASSETS>                     240,679,468
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                     11,942,587
<OVERDIST-NET-GAINS-PRIOR>                  14,898,491
<GROSS-ADVISORY-FEES>                        4,854,415
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              8,797,238
<AVERAGE-NET-ASSETS>                       978,929,036
<PER-SHARE-NAV-BEGIN>                            19.85
<PER-SHARE-NII>                                    .03
<PER-SHARE-GAIN-APPREC>                           3.09
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              22.97
<EXPENSE-RATIO>                                   1.69
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 552
   <NAME> GOLDMAN SACHS INTERNATIONAL EQUITY FUND-CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      904,513,056
<INVESTMENTS-AT-VALUE>                   1,087,661,956
<RECEIVABLES>                               28,814,058
<ASSETS-OTHER>                                  70,861
<OTHER-ITEMS-ASSETS>                           215,044
<TOTAL-ASSETS>                           1,116,761,919
<PAYABLE-FOR-SECURITIES>                    14,445,435
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   46,056,827
<TOTAL-LIABILITIES>                         60,502,262
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   831,414,641
<SHARES-COMMON-STOCK>                        3,130,527
<SHARES-COMMON-PRIOR>                        2,808,047
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                       6,495,192
<ACCUMULATED-NET-GAINS>                     46,482,372
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   184,857,836
<NET-ASSETS>                             1,056,259,657
<DIVIDEND-INCOME>                            8,658,965
<INTEREST-INCOME>                            1,025,426
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               8,194,898
<NET-INVESTMENT-INCOME>                      1,489,493
<REALIZED-GAINS-CURRENT>                    65,338,765
<APPREC-INCREASE-CURRENT>                   68,047,123
<NET-CHANGE-FROM-OPS>                      134,875,381
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        552,213
<NUMBER-OF-SHARES-REDEEMED>                    229,971
<SHARES-REINVESTED>                                238
<NET-CHANGE-IN-ASSETS>                     240,679,468
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                     11,942,587
<OVERDIST-NET-GAINS-PRIOR>                  14,898,491
<GROSS-ADVISORY-FEES>                        4,854,415
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              8,797,238
<AVERAGE-NET-ASSETS>                       978,929,036
<PER-SHARE-NAV-BEGIN>                            19.70
<PER-SHARE-NII>                                  (.02)
<PER-SHARE-GAIN-APPREC>                           3.08
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              22.74
<EXPENSE-RATIO>                                   2.21
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 557
   <NAME> GOLDMAN SACHS INTERNATIONAL EQUITY FUND-CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      904,513,056
<INVESTMENTS-AT-VALUE>                   1,087,661,956
<RECEIVABLES>                               28,814,058
<ASSETS-OTHER>                                  70,861
<OTHER-ITEMS-ASSETS>                           215,044
<TOTAL-ASSETS>                           1,116,761,919
<PAYABLE-FOR-SECURITIES>                    14,445,435
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   46,056,827
<TOTAL-LIABILITIES>                         60,502,262
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   831,414,641
<SHARES-COMMON-STOCK>                          345,788
<SHARES-COMMON-PRIOR>                          172,210
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                       6,495,192
<ACCUMULATED-NET-GAINS>                     46,482,372
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   184,857,836
<NET-ASSETS>                             1,056,259,657
<DIVIDEND-INCOME>                            8,658,965
<INTEREST-INCOME>                            1,025,426
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               8,194,898
<NET-INVESTMENT-INCOME>                      1,489,493
<REALIZED-GAINS-CURRENT>                    65,338,765
<APPREC-INCREASE-CURRENT>                   68,047,123
<NET-CHANGE-FROM-OPS>                      134,875,381
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      1,487,005
<NUMBER-OF-SHARES-REDEEMED>                  1,313,427
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     240,679,468
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                     11,942,587
<OVERDIST-NET-GAINS-PRIOR>                  14,898,491
<GROSS-ADVISORY-FEES>                        4,854,415
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              8,797,238
<AVERAGE-NET-ASSETS>                       978,929,036
<PER-SHARE-NAV-BEGIN>                            19.56
<PER-SHARE-NII>                                  (.02)
<PER-SHARE-GAIN-APPREC>                           3.04
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              22.58
<EXPENSE-RATIO>                                   2.21
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 553
   <NAME> GOLDMAN SACHS INTERNATIONAL EQUITY FUND-INST.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      904,513,056
<INVESTMENTS-AT-VALUE>                   1,087,661,956
<RECEIVABLES>                               28,814,058
<ASSETS-OTHER>                                  70,861
<OTHER-ITEMS-ASSETS>                           215,044
<TOTAL-ASSETS>                           1,116,761,919
<PAYABLE-FOR-SECURITIES>                    14,445,435
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   46,056,827
<TOTAL-LIABILITIES>                         60,502,262
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   831,414,641
<SHARES-COMMON-STOCK>                        3,838,681
<SHARES-COMMON-PRIOR>                        2,817,977
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                       6,495,192
<ACCUMULATED-NET-GAINS>                     46,482,372
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   184,857,836
<NET-ASSETS>                             1,056,259,657
<DIVIDEND-INCOME>                            8,658,965
<INTEREST-INCOME>                            1,025,426
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               8,194,898
<NET-INVESTMENT-INCOME>                      1,489,493
<REALIZED-GAINS-CURRENT>                    65,338,765
<APPREC-INCREASE-CURRENT>                   68,047,123
<NET-CHANGE-FROM-OPS>                      134,875,381
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      1,288,018
<NUMBER-OF-SHARES-REDEEMED>                    267,314
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     240,679,468
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                     11,942,587
<OVERDIST-NET-GAINS-PRIOR>                  14,898,491
<GROSS-ADVISORY-FEES>                        4,854,415
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              8,797,238
<AVERAGE-NET-ASSETS>                       978,929,036
<PER-SHARE-NAV-BEGIN>                            19.97
<PER-SHARE-NII>                                    .07
<PER-SHARE-GAIN-APPREC>                           3.14
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              23.18
<EXPENSE-RATIO>                                   1.10
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 556
   <NAME> GOLDMAN SACHS INTERNATIONAL EQUITY FUND-SERV.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      904,513,056
<INVESTMENTS-AT-VALUE>                   1,087,661,956
<RECEIVABLES>                               28,814,058
<ASSETS-OTHER>                                  70,861
<OTHER-ITEMS-ASSETS>                           215,044
<TOTAL-ASSETS>                           1,116,761,919
<PAYABLE-FOR-SECURITIES>                    14,445,435
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   46,056,827
<TOTAL-LIABILITIES>                         60,502,262
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   831,414,641
<SHARES-COMMON-STOCK>                          173,083
<SHARES-COMMON-PRIOR>                          152,953
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                       6,495,192
<ACCUMULATED-NET-GAINS>                     46,482,372
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   184,857,836
<NET-ASSETS>                             1,056,259,657
<DIVIDEND-INCOME>                            8,658,965
<INTEREST-INCOME>                            1,025,426
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               8,194,898
<NET-INVESTMENT-INCOME>                      1,489,493
<REALIZED-GAINS-CURRENT>                    65,338,765
<APPREC-INCREASE-CURRENT>                   68,047,123
<NET-CHANGE-FROM-OPS>                      134,875,381
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         55,251
<NUMBER-OF-SHARES-REDEEMED>                     35,121
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     240,679,468
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                     11,942,587
<OVERDIST-NET-GAINS-PRIOR>                  14,898,491
<GROSS-ADVISORY-FEES>                        4,854,415
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              8,797,238
<AVERAGE-NET-ASSETS>                       978,929,036
<PER-SHARE-NAV-BEGIN>                            19.84
<PER-SHARE-NII>                                    .04
<PER-SHARE-GAIN-APPREC>                           3.10
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              22.98
<EXPENSE-RATIO>                                   1.60
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 641
   <NAME> GOLDMAN SACHS JAPANESE EQUITY FUND-CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             MAY-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       14,572,611
<INVESTMENTS-AT-VALUE>                      14,788,370
<RECEIVABLES>                                  207,511
<ASSETS-OTHER>                                  68,734
<OTHER-ITEMS-ASSETS>                           670,335
<TOTAL-ASSETS>                              15,734,950
<PAYABLE-FOR-SECURITIES>                        46,247
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       48,448
<TOTAL-LIABILITIES>                             94,695
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    15,452,687
<SHARES-COMMON-STOCK>                          461,444
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                          12,402
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                        20,859
<ACCUM-APPREC-OR-DEPREC>                       220,829
<NET-ASSETS>                                15,640,255
<DIVIDEND-INCOME>                                2,118
<INTEREST-INCOME>                               26,582
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  41,102
<NET-INVESTMENT-INCOME>                       (12,402)
<REALIZED-GAINS-CURRENT>                      (20,859)
<APPREC-INCREASE-CURRENT>                      220,829
<NET-CHANGE-FROM-OPS>                          187,568
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        577,828
<NUMBER-OF-SHARES-REDEEMED>                    116,384
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      15,640,255
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           35,290
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                148,046
<AVERAGE-NET-ASSETS>                        14,001,029
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                  (.02)
<PER-SHARE-GAIN-APPREC>                            .11
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.09
<EXPENSE-RATIO>                                   1.50
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 642
   <NAME> GOLDMAN SACHS JAPANESE EQUITY FUND-CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             MAY-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       14,572,611
<INVESTMENTS-AT-VALUE>                      14,788,370
<RECEIVABLES>                                  207,511
<ASSETS-OTHER>                                  68,734
<OTHER-ITEMS-ASSETS>                           670,335
<TOTAL-ASSETS>                              15,734,950
<PAYABLE-FOR-SECURITIES>                        46,247
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       48,448
<TOTAL-LIABILITIES>                             94,695
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    15,452,687
<SHARES-COMMON-STOCK>                           70,030
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                          12,402
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                        20,859
<ACCUM-APPREC-OR-DEPREC>                       220,829
<NET-ASSETS>                                15,640,255
<DIVIDEND-INCOME>                                2,118
<INTEREST-INCOME>                               26,582
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  41,102
<NET-INVESTMENT-INCOME>                       (12,402)
<REALIZED-GAINS-CURRENT>                      (20,859)
<APPREC-INCREASE-CURRENT>                      220,829
<NET-CHANGE-FROM-OPS>                          187,568
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         70,030
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      15,640,255
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           35,290
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                148,046
<AVERAGE-NET-ASSETS>                        14,001,029
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                  (.03)
<PER-SHARE-GAIN-APPREC>                            .11
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.08
<EXPENSE-RATIO>                                   2.00
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 647
   <NAME> GOLDMAN SACHS JAPANESE EQUITY FUND-CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             MAY-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       14,572,611
<INVESTMENTS-AT-VALUE>                      14,788,370
<RECEIVABLES>                                  207,511
<ASSETS-OTHER>                                  68,734
<OTHER-ITEMS-ASSETS>                           670,335
<TOTAL-ASSETS>                              15,734,950
<PAYABLE-FOR-SECURITIES>                        46,247
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       48,448
<TOTAL-LIABILITIES>                             94,695
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    15,452,687
<SHARES-COMMON-STOCK>                           17,643
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                          12,402
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                        20,859
<ACCUM-APPREC-OR-DEPREC>                       220,829
<NET-ASSETS>                                15,640,255
<DIVIDEND-INCOME>                                2,118
<INTEREST-INCOME>                               26,582
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  41,102
<NET-INVESTMENT-INCOME>                       (12,402)
<REALIZED-GAINS-CURRENT>                      (20,859)
<APPREC-INCREASE-CURRENT>                      220,829
<NET-CHANGE-FROM-OPS>                          187,568
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         17,845
<NUMBER-OF-SHARES-REDEEMED>                        202
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      15,640,255
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           35,290
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                148,046
<AVERAGE-NET-ASSETS>                        14,001,029
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                  (.02)
<PER-SHARE-GAIN-APPREC>                            .10
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.08
<EXPENSE-RATIO>                                   2.00
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 643
   <NAME> GOLDMAN SACHS JAPANESE EQUITY FUND-INST.
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             MAY-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       14,572,611
<INVESTMENTS-AT-VALUE>                      14,788,370
<RECEIVABLES>                                  207,511
<ASSETS-OTHER>                                  68,734
<OTHER-ITEMS-ASSETS>                           670,335
<TOTAL-ASSETS>                              15,734,950
<PAYABLE-FOR-SECURITIES>                        46,247
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       48,448
<TOTAL-LIABILITIES>                             94,695
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    15,452,687
<SHARES-COMMON-STOCK>                        1,000,000
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                          12,402
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                        20,859
<ACCUM-APPREC-OR-DEPREC>                       220,829
<NET-ASSETS>                                15,640,255
<DIVIDEND-INCOME>                                2,118
<INTEREST-INCOME>                               26,582
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  41,102
<NET-INVESTMENT-INCOME>                       (12,402)
<REALIZED-GAINS-CURRENT>                      (20,859)
<APPREC-INCREASE-CURRENT>                      220,829
<NET-CHANGE-FROM-OPS>                          187,568
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      1,000,000
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      15,640,255
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           35,290
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                148,046
<AVERAGE-NET-ASSETS>                        14,001,029
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                      0
<PER-SHARE-GAIN-APPREC>                            .10
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.10
<EXPENSE-RATIO>                                   1.00
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 646
   <NAME> GOLDMAN SACHS JAPANESE EQUITY FUND-SERV.
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             MAY-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       14,572,611
<INVESTMENTS-AT-VALUE>                      14,788,370
<RECEIVABLES>                                  207,511
<ASSETS-OTHER>                                  68,734
<OTHER-ITEMS-ASSETS>                           670,335
<TOTAL-ASSETS>                              15,734,950
<PAYABLE-FOR-SECURITIES>                        46,247
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       48,448
<TOTAL-LIABILITIES>                             94,695
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    15,452,687
<SHARES-COMMON-STOCK>                              150
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                          12,402
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                        20,859
<ACCUM-APPREC-OR-DEPREC>                       220,829
<NET-ASSETS>                                15,640,255
<DIVIDEND-INCOME>                                2,118
<INTEREST-INCOME>                               26,582
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  41,102
<NET-INVESTMENT-INCOME>                       (12,402)
<REALIZED-GAINS-CURRENT>                      (20,859)
<APPREC-INCREASE-CURRENT>                      220,829
<NET-CHANGE-FROM-OPS>                          187,568
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            150
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      15,640,255
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           35,290
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                148,046
<AVERAGE-NET-ASSETS>                        14,001,029
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                  (.01)
<PER-SHARE-GAIN-APPREC>                            .10
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.09
<EXPENSE-RATIO>                                   1.50
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 571
   <NAME> GOLDMAN SACHS MID CAP EQUITY FUND-CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      419,871,388
<INVESTMENTS-AT-VALUE>                     407,307,279
<RECEIVABLES>                               10,272,131
<ASSETS-OTHER>                                 269,177
<OTHER-ITEMS-ASSETS>                            34,732
<TOTAL-ASSETS>                             417,883,319
<PAYABLE-FOR-SECURITIES>                     7,443,427
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    2,559,857
<TOTAL-LIABILITIES>                         10,003,284
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   379,872,787
<SHARES-COMMON-STOCK>                        5,690,789
<SHARES-COMMON-PRIOR>                        4,191,937
<ACCUMULATED-NII-CURRENT>                    1,259,172
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     39,312,185
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (12,564,109)
<NET-ASSETS>                               407,880,035
<DIVIDEND-INCOME>                            2,751,354
<INTEREST-INCOME>                              782,027
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               2,404,302
<NET-INVESTMENT-INCOME>                      1,129,079
<REALIZED-GAINS-CURRENT>                    24,623,892
<APPREC-INCREASE-CURRENT>                 (45,742,535)
<NET-CHANGE-FROM-OPS>                     (19,989,564)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      3,127,975
<NUMBER-OF-SHARES-REDEEMED>                  1,629,123
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      45,656,420
<ACCUMULATED-NII-PRIOR>                        130,093
<ACCUMULATED-GAINS-PRIOR>                   14,688,293
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,618,705
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              2,652,835
<AVERAGE-NET-ASSETS>                       435,231,892
<PER-SHARE-NAV-BEGIN>                            21.61
<PER-SHARE-NII>                                    .03
<PER-SHARE-GAIN-APPREC>                          (.79)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              20.85
<EXPENSE-RATIO>                                   1.35
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 572
   <NAME> GOLDMAN SACHS MID CAP EQUITY FUND-CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      419,871,388
<INVESTMENTS-AT-VALUE>                     407,307,279
<RECEIVABLES>                               10,272,131
<ASSETS-OTHER>                                 269,177
<OTHER-ITEMS-ASSETS>                            34,732
<TOTAL-ASSETS>                             417,883,319
<PAYABLE-FOR-SECURITIES>                     7,443,427
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    2,559,857
<TOTAL-LIABILITIES>                         10,003,284
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   379,872,787
<SHARES-COMMON-STOCK>                        2,227,600
<SHARES-COMMON-PRIOR>                        1,332,295
<ACCUMULATED-NII-CURRENT>                    1,259,172
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     39,312,185
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (12,564,109)
<NET-ASSETS>                               407,880,035
<DIVIDEND-INCOME>                            2,751,354
<INTEREST-INCOME>                              782,027
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               2,404,302
<NET-INVESTMENT-INCOME>                      1,129,079
<REALIZED-GAINS-CURRENT>                    24,623,892
<APPREC-INCREASE-CURRENT>                 (45,742,535)
<NET-CHANGE-FROM-OPS>                     (19,989,564)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      1,003,946
<NUMBER-OF-SHARES-REDEEMED>                    108,641
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      45,656,420
<ACCUMULATED-NII-PRIOR>                        130,093
<ACCUMULATED-GAINS-PRIOR>                   14,688,293
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,618,705
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              2,652,835
<AVERAGE-NET-ASSETS>                       435,231,892
<PER-SHARE-NAV-BEGIN>                            21.57
<PER-SHARE-NII>                                  (.02)
<PER-SHARE-GAIN-APPREC>                          (.78)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              20.77
<EXPENSE-RATIO>                                   1.85
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 577
   <NAME> GOLDMAN SACHS MID CAP EQUITY FUND-CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      419,871,388
<INVESTMENTS-AT-VALUE>                     407,307,279
<RECEIVABLES>                               10,272,131
<ASSETS-OTHER>                                 269,177
<OTHER-ITEMS-ASSETS>                            34,732
<TOTAL-ASSETS>                             417,883,319
<PAYABLE-FOR-SECURITIES>                     7,443,427
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    2,559,857
<TOTAL-LIABILITIES>                         10,003,284
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   379,872,787
<SHARES-COMMON-STOCK>                          607,053
<SHARES-COMMON-PRIOR>                          298,521
<ACCUMULATED-NII-CURRENT>                    1,259,172
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     39,312,185
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (12,564,109)
<NET-ASSETS>                               407,880,035
<DIVIDEND-INCOME>                            2,751,354
<INTEREST-INCOME>                              782,027
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               2,404,302
<NET-INVESTMENT-INCOME>                      1,129,079
<REALIZED-GAINS-CURRENT>                    24,623,892
<APPREC-INCREASE-CURRENT>                 (45,742,535)
<NET-CHANGE-FROM-OPS>                     (19,989,564)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        353,053
<NUMBER-OF-SHARES-REDEEMED>                     44,521
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      45,656,420
<ACCUMULATED-NII-PRIOR>                        130,093
<ACCUMULATED-GAINS-PRIOR>                   14,688,293
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,618,705
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              2,652,835
<AVERAGE-NET-ASSETS>                       435,231,892
<PER-SHARE-NAV-BEGIN>                            21.59
<PER-SHARE-NII>                                  (.02)
<PER-SHARE-GAIN-APPREC>                          (.79)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              20.78
<EXPENSE-RATIO>                                   1.85
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 573
   <NAME> GOLDMAN SACHS MID CAP EQUITY FUND-INST.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      419,871,388
<INVESTMENTS-AT-VALUE>                     407,307,279
<RECEIVABLES>                               10,272,131
<ASSETS-OTHER>                                 269,177
<OTHER-ITEMS-ASSETS>                            34,732
<TOTAL-ASSETS>                             417,883,319
<PAYABLE-FOR-SECURITIES>                     7,443,427
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    2,559,857
<TOTAL-LIABILITIES>                         10,003,284
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   379,872,787
<SHARES-COMMON-STOCK>                       10,992,894
<SHARES-COMMON-PRIOR>                       10,921,229
<ACCUMULATED-NII-CURRENT>                    1,259,172
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     39,312,185
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (12,564,109)
<NET-ASSETS>                               407,880,035
<DIVIDEND-INCOME>                            2,751,354
<INTEREST-INCOME>                              782,027
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               2,404,302
<NET-INVESTMENT-INCOME>                      1,129,079
<REALIZED-GAINS-CURRENT>                    24,623,892
<APPREC-INCREASE-CURRENT>                 (45,742,535)
<NET-CHANGE-FROM-OPS>                     (19,989,564)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        556,447
<NUMBER-OF-SHARES-REDEEMED>                    484,782
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      45,656,420
<ACCUMULATED-NII-PRIOR>                        130,093
<ACCUMULATED-GAINS-PRIOR>                   14,688,293
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,618,705
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              2,652,835
<AVERAGE-NET-ASSETS>                       435,231,892
<PER-SHARE-NAV-BEGIN>                            21.65
<PER-SHARE-NII>                                    .09
<PER-SHARE-GAIN-APPREC>                          (.80)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              20.94
<EXPENSE-RATIO>                                    .85
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 576
   <NAME> GOLDMAN SACHS MID CAP EQUITY FUND-SERV.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      419,871,388
<INVESTMENTS-AT-VALUE>                     407,307,279
<RECEIVABLES>                               10,272,131
<ASSETS-OTHER>                                 269,177
<OTHER-ITEMS-ASSETS>                            34,732
<TOTAL-ASSETS>                             417,883,319
<PAYABLE-FOR-SECURITIES>                     7,443,427
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    2,559,857
<TOTAL-LIABILITIES>                         10,003,284
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   379,872,787
<SHARES-COMMON-STOCK>                            3,973
<SHARES-COMMON-PRIOR>                              360
<ACCUMULATED-NII-CURRENT>                    1,259,172
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     39,312,185
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (12,564,109)
<NET-ASSETS>                               407,880,035
<DIVIDEND-INCOME>                            2,751,354
<INTEREST-INCOME>                              782,027
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               2,404,302
<NET-INVESTMENT-INCOME>                      1,129,079
<REALIZED-GAINS-CURRENT>                    24,623,892
<APPREC-INCREASE-CURRENT>                 (45,742,535)
<NET-CHANGE-FROM-OPS>                     (19,989,564)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          3,613
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      45,656,420
<ACCUMULATED-NII-PRIOR>                        130,093
<ACCUMULATED-GAINS-PRIOR>                   14,688,293
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,618,705
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              2,652,835
<AVERAGE-NET-ASSETS>                       435,231,892
<PER-SHARE-NAV-BEGIN>                            21.62
<PER-SHARE-NII>                                      0
<PER-SHARE-GAIN-APPREC>                          (.75)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              20.87
<EXPENSE-RATIO>                                   1.35
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 541
   <NAME> GOLDMAN SACHS SMALL CAP VALUE FUND-CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      525,307,636
<INVESTMENTS-AT-VALUE>                     488,050,599
<RECEIVABLES>                                6,397,359
<ASSETS-OTHER>                                  98,497
<OTHER-ITEMS-ASSETS>                            56,454
<TOTAL-ASSETS>                             494,602,891
<PAYABLE-FOR-SECURITIES>                     5,076,379
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    4,907,251
<TOTAL-LIABILITIES>                          9,983,630
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   456,925,501
<SHARES-COMMON-STOCK>                       16,883,768
<SHARES-COMMON-PRIOR>                       15,394,383
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                         598,236
<ACCUMULATED-NET-GAINS>                     65,549,033
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (37,257,037)
<NET-ASSETS>                               484,619,261
<DIVIDEND-INCOME>                            1,823,834
<INTEREST-INCOME>                            1,612,602
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               4,034,672
<NET-INVESTMENT-INCOME>                      (598,236)
<REALIZED-GAINS-CURRENT>                    41,132,546
<APPREC-INCREASE-CURRENT>                 (51,792,387)
<NET-CHANGE-FROM-OPS>                     (11,258,077)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      4,823,269
<NUMBER-OF-SHARES-REDEEMED>                  3,333,884
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      51,463,958
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                   24,416,487
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        2,564,550
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              4,574,293
<AVERAGE-NET-ASSETS>                       517,271,203
<PER-SHARE-NAV-BEGIN>                            24.05
<PER-SHARE-NII>                                  (.02)
<PER-SHARE-GAIN-APPREC>                          (.17)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              23.86
<EXPENSE-RATIO>                                   1.50
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 542
   <NAME> GOLDMAN SACHS SMALL CAP VALUE FUND-CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      525,307,636
<INVESTMENTS-AT-VALUE>                     488,050,599
<RECEIVABLES>                                6,397,359
<ASSETS-OTHER>                                  98,479
<OTHER-ITEMS-ASSETS>                            56,454
<TOTAL-ASSETS>                             494,602,891
<PAYABLE-FOR-SECURITIES>                     5,076,379
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    4,907,251
<TOTAL-LIABILITIES>                          9,983,630
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   456,925,501
<SHARES-COMMON-STOCK>                        2,312,907
<SHARES-COMMON-PRIOR>                        1,798,680
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                         598,236
<ACCUMULATED-NET-GAINS>                     65,549,033
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (37,257,037)
<NET-ASSETS>                               484,619,261
<DIVIDEND-INCOME>                            1,823,834
<INTEREST-INCOME>                            1,612,602
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               4,034,672
<NET-INVESTMENT-INCOME>                      (598,236)
<REALIZED-GAINS-CURRENT>                    41,132,546
<APPREC-INCREASE-CURRENT>                 (51,792,387)
<NET-CHANGE-FROM-OPS>                     (11,258,077)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        674,342
<NUMBER-OF-SHARES-REDEEMED>                    160,155
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      51,463,958
<ACCUMULATED-NII-PRIOR>                     24,416,487
<ACCUMULATED-GAINS-PRIOR>                   14,535,350
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        2,564,550
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              4,574,293
<AVERAGE-NET-ASSETS>                       517,271,203
<PER-SHARE-NAV-BEGIN>                            23.73
<PER-SHARE-NII>                                  (.11)
<PER-SHARE-GAIN-APPREC>                          (.17)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              23.45
<EXPENSE-RATIO>                                   2.25
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 547
   <NAME> GOLDMAN SACHS SMALL CAP VALUE FUND-CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      525,307,636
<INVESTMENTS-AT-VALUE>                     488,050,599
<RECEIVABLES>                                6,397,359
<ASSETS-OTHER>                                  98,479
<OTHER-ITEMS-ASSETS>                            56,454
<TOTAL-ASSETS>                             494,602,891
<PAYABLE-FOR-SECURITIES>                     5,076,379
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    4,907,251
<TOTAL-LIABILITIES>                          9,983,630
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   456,925,501
<SHARES-COMMON-STOCK>                          396,832
<SHARES-COMMON-PRIOR>                          236,148
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                         598,236
<ACCUMULATED-NET-GAINS>                     65,549,033
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (37,257,037)
<NET-ASSETS>                               484,619,261
<DIVIDEND-INCOME>                            1,823,834
<INTEREST-INCOME>                            1,612,602
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               4,034,672
<NET-INVESTMENT-INCOME>                      (598,236)
<REALIZED-GAINS-CURRENT>                    41,132,546
<APPREC-INCREASE-CURRENT>                 (51,792,387)
<NET-CHANGE-FROM-OPS>                     (11,258,077)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        197,273
<NUMBER-OF-SHARES-REDEEMED>                     36,589
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      51,463,958
<ACCUMULATED-NII-PRIOR>                     24,416,487
<ACCUMULATED-GAINS-PRIOR>                   14,535,350
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        2,564,550
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              4,574,293
<AVERAGE-NET-ASSETS>                       517,271,203
<PER-SHARE-NAV-BEGIN>                            23.73
<PER-SHARE-NII>                                  (.09)
<PER-SHARE-GAIN-APPREC>                          (.19)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              23.45
<EXPENSE-RATIO>                                   2.25
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 543
   <NAME> GOLDMAN SACHS SMALL CAP VALUE FUND-INST.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      525,307,636
<INVESTMENTS-AT-VALUE>                     488,050,599
<RECEIVABLES>                                6,397,359
<ASSETS-OTHER>                                  98,479
<OTHER-ITEMS-ASSETS>                            56,454
<TOTAL-ASSETS>                             494,602,891
<PAYABLE-FOR-SECURITIES>                     5,076,379
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    4,907,251
<TOTAL-LIABILITIES>                          9,983,630
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   456,925,501
<SHARES-COMMON-STOCK>                          759,962
<SHARES-COMMON-PRIOR>                          607,122
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                         598,236
<ACCUMULATED-NET-GAINS>                     65,549,033
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (37,257,037)
<NET-ASSETS>                               484,619,261
<DIVIDEND-INCOME>                            1,823,834
<INTEREST-INCOME>                            1,612,602
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               4,034,672
<NET-INVESTMENT-INCOME>                      (598,236)
<REALIZED-GAINS-CURRENT>                    41,132,546
<APPREC-INCREASE-CURRENT>                 (51,792,387)
<NET-CHANGE-FROM-OPS>                     (11,258,077)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        155,023
<NUMBER-OF-SHARES-REDEEMED>                      2,183
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      51,463,958
<ACCUMULATED-NII-PRIOR>                     24,416,487
<ACCUMULATED-GAINS-PRIOR>                   14,535,350
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        2,564,550
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              4,574,293
<AVERAGE-NET-ASSETS>                       517,271,203
<PER-SHARE-NAV-BEGIN>                            24.09
<PER-SHARE-NII>                                    .03
<PER-SHARE-GAIN-APPREC>                           (.18)   
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              23.94
<EXPENSE-RATIO>                                   1.15
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GOLDMAN
SACHS EQUITY FUNDS SEMI ANNUAL REPORT DATED JULY 31, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 546
   <NAME> GOLDMAN SACHS SMALL CAP VALUE FUND-SERV.
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                      525,307,636
<INVESTMENTS-AT-VALUE>                     488,050,599
<RECEIVABLES>                                6,397,359
<ASSETS-OTHER>                                  98,479
<OTHER-ITEMS-ASSETS>                            56,454
<TOTAL-ASSETS>                             494,602,891
<PAYABLE-FOR-SECURITIES>                     5,076,379
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    4,907,251
<TOTAL-LIABILITIES>                          9,983,630
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   456,925,501
<SHARES-COMMON-STOCK>                            3,195
<SHARES-COMMON-PRIOR>                               70
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                         598,236
<ACCUMULATED-NET-GAINS>                     65,549,033
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                  (37,257,037)
<NET-ASSETS>                               484,619,261
<DIVIDEND-INCOME>                            1,823,834
<INTEREST-INCOME>                            1,612,602
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               4,034,672
<NET-INVESTMENT-INCOME>                      (598,236)
<REALIZED-GAINS-CURRENT>                    41,132,546
<APPREC-INCREASE-CURRENT>                 (51,792,387)
<NET-CHANGE-FROM-OPS>                     (11,258,077)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          3,125
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      51,463,958
<ACCUMULATED-NII-PRIOR>                     24,416,487
<ACCUMULATED-GAINS-PRIOR>                   14,535,350
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        2,564,550
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              4,574,293
<AVERAGE-NET-ASSETS>                       517,271,203
<PER-SHARE-NAV-BEGIN>                            24.05
<PER-SHARE-NII>                                      0
<PER-SHARE-GAIN-APPREC>                          (.19)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              23.86
<EXPENSE-RATIO>                                   1.65
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>


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