SEI ASSET ALLOCATION TRUST
485APOS, 1996-09-16
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<PAGE>   1
   
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON September 16, 1996
    

                                                               File No. 33-64875
                                                               File No. 811-7445

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM N-1A

                        REGISTRATION STATEMENT UNDER THE
                              SECURITIES ACT OF 1933                    / /
                         POST-EFFECTIVE AMENDMENT NO. 1                 /X/

                                       and

                        REGISTRATION STATEMENT UNDER THE
                         INVESTMENT COMPANY ACT OF 1940                 / /
                                 AMENDMENT NO. 2                        /X/

                           SEI ASSET ALLOCATION TRUST
               (Exact Name of Registrant as Specified in Charter)

                          c/o The CT Corporation System
                                 2 Oliver Street
                           Boston, Massachusetts 02109
               (Address of Principal Executive Offices, Zip Code)

        Registrant's Telephone Number, including Area Code (610) 254-1000

                                  DAVID G. LEE
                               C/O SEI CORPORATION
                             680 E. SWEDESFORD ROAD
                            WAYNE, PENNSYLVANIA 19087
                     (Name and Address of Agent for Service)

                                   Copies to:

        RICHARD W. GRANT, ESQUIRE             JOHN H. GRADY, JR., ESQUIRE
        Morgan, Lewis & Bockius LLP           Morgan, Lewis & Bockius LLP
        2000 ONE LOGAN SQUARE                 1800 M STREET, NW
        PHILADELPHIA, PENNSYLVANIA  19103     WASHINGTON, DC  20036

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)
__ 60 days after filing pursuant to paragraph (a)
__ on [date] pursuant to paragraph (a)(1) of Rule 485
 X 75 days after filing pursuant to paragraph (a)(2)
- --
Pursuant to the provisions of Rule 24f-2 under the Investment Act of 1940, an
indefinite number of units of beneficial interest is being registered by this
Registration Statement.
<PAGE>   2
                           SEI ASSET ALLOCATION TRUST
                              CROSS REFERENCE SHEET

   
<TABLE>
<CAPTION>
N-1A ITEM NO.                                             LOCATION
- --------------------------------------------------------------------------------------------------------------------------
<S>            <C>                                        <C>
PART A -
 Item 1.       Cover Page                                 Cover Page
 Item 2.       Synopsis                                   Fund Expenses; Indirect Expenses
 Item 3.       Condensed Financial Information            Financial Highlights
 Item 4.       General Description of Registrant          Fund Expenses; Indirect Expenses;  Investment Objectives and
                                                          Policies of the Funds; General Investment Policies of the Funds;
                                                          Portfolio Turnover of the Funds; Risk Factors of the Funds;
                                                          Investment Limitations of the Funds; Investment Goals of the
                                                          Underlying Portfolios; Investment Objectives and Policies of the
                                                          Underlying Portfolios; General Investment Policies of the
                                                          Underlying Portfolios; Risk Factors of the Underlying Portfolios;
                                                          Fundamental Limitations of the Underlying Portfolios
 Item 5.       Management of the Trust                    General Information -- The Adviser and Manager of the Funds;
                                                          Distribution and Shareholder Servicing; The Advisers and Sub-
                                                          Advisers to the Underlying Portfolios; Transfer Agent;
                                                          Performance; General Information -- The Trust; Trustees of the
                                                          Trust
 Item 5A.      Management's Discussion of Fund                         *
               Performance
 Item 6.       Capital Stock and Other Securities         Voting Rights; Reporting; Shareholder Inquiries; Dividends;
                                                          Counsel and Independent Accountants; Custodian and Wire
                                                          Agent; Taxes
 Item 7.       Purchase of Securities Being Offered       Purchase and Redemption of Shares
 Item 8.       Redemption or Repurchase                   Purchase and Redemption of Shares
 Item 9.       Pending Legal Proceedings                               *

PART B -
 Item 10.      Cover Page                                 Cover Page
 Item 11.      Table of Contents                          Table of Contents
 Item 12.      General Information and History            The Trust
 Item 13.      Investment Objectives and Policies         Description of Permitted Investments of the Underlying
                                                          Portfolios; Description of Ratings; Investment Limitations of the
                                                          Funds; Investment Limitations of the Underlying Portfolios
 Item 14.      Management of the Registrant               The Manager
 Item 15.      Control Persons and Principal                           *
               Holders of Securities
 Item 16.      Investment Advisory and Other              The Manager; The Investment Adviser to the Funds;
               Services                                   The Advisers and Sub-Advisers to the Underlying Portfolios;
                                                          Experts
 Item 17.      Brokerage Allocation                       Portfolio Transactions
 Item 18.      Capital Stock and Other Securities         Description of Shares
 Item 19.      Purchase, Redemption, and Pricing          Purchase and Redemption of Shares
               of Securities Being Offered
 Item 20.      Tax Status                                 Taxes
 Item 21.      Underwriters                               Distribution
 Item 22.      Calculation of Yield Quotations            Performance
 Item 23.      Financial Statements                                   *
</TABLE>
    
<PAGE>   3
PART C -

        Information required to be included in Part C is set forth under the
        appropriate item, so numbered, in Part C of this Registration Statement.

* Not Applicable


                                       ii
<PAGE>   4
 
                PRELIMINARY PROSPECTUS DATED SEPTEMBER 16, 1996
                             SUBJECT TO COMPLETION
 
SEI ASSET ALLOCATION TRUST
DECEMBER 1, 1996
- --------------------------------------------------------------------------------
 
DIVERSIFIED CONSERVATIVE INCOME FUND
DIVERSIFIED CONSERVATIVE FUND
DIVERSIFIED GLOBAL MODERATE GROWTH FUND
DIVERSIFIED MODERATE GROWTH FUND
DIVERSIFIED GLOBAL GROWTH FUND
DIVERSIFIED GLOBAL STOCK FUND
DIVERSIFIED U.S. STOCK FUND
 
- --------------------------------------------------------------------------------
 
This Prospectus sets forth concisely information about the above-referenced
Funds. Please read this Prospectus carefully before investing, and keep it on
file for future reference.
 
A Statement of Additional Information dated December 1, 1996, has been filed
with the Securities and Exchange Commission ("SEC") and may be obtained upon
request and without charge by writing the Distributor, SEI Financial Services
Company (the "Distributor"), at 680 East Swedesford Road, Wayne, Pennsylvania
19087-1658, or by calling 1-800-342-5734. The Statement of Additional
Information is incorporated into this Prospectus by reference.
 
SEI Asset Allocation Trust (the "Trust") is an open-end management investment
company consisting of the following seven separate diversified investment
portfolios (each a "Fund" and, together, the "Funds"): Diversified Conservative
Income Fund, Diversified Conservative Fund, Diversified Global Moderate Growth
Fund, Diversified Moderate Growth Fund, Diversified Global Growth Fund (formerly
the Diversified Growth Fund), Diversified Global Stock Fund and Diversified U.S.
Stock Fund. Each Fund offers investors a convenient means of investing in shares
of certain mutual funds (the "Underlying Portfolios") managed by SEI Financial
Management Corporation ("SFM" or the "Adviser") within certain predetermined
percentage ranges. Each Fund offers two classes of shares, Class A Shares and
Class D Shares. Class A Shares are offered primarily to tax-advantaged and other
retirement accounts. Class D Shares are offered primarily to tax-advantaged and
other retirement accounts through banks, broker-dealers and other financial
institutions that have entered into arrangements with the Distributor to sell
Class D Shares to their customers. Class D Shares differ from Class A Shares
primarily in the allocation of certain distribution, shareholder servicing and
transfer agent expenses, and in the range and types of shareholder services
offered to investors. This Prospectus offers Class D Shares of the Funds.
- --------------------------------------------------------------------------------
 
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.
 
THE TRUST'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK. THE TRUST'S SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER GOVERNMENT
AGENCY. INVESTMENT IN THE FUNDS INVOLVES RISK, INCLUDING POSSIBLE LOSS OF THE
PRINCIPAL AMOUNT INVESTED.
 
     THE INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OF AMENDMENT. A
     REGISTRATION STATEMENT RELATING TO, AMONG OTHER THINGS, THIS PROSPECTUS HAS
     BEEN FILED WITH THE SECURITIES AND EXCHANGE COMMISSION. SECURITIES OF THE
     FUNDS REFERENCED IN THIS PROSPECTUS MAY NOT BE SOLD NOR MAY OFFERS TO BUY
     SUCH SECURITIES BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT
     BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR
     THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BY ANY SALE OF
     SECURITIES REFERENCED HEREIN IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION
     OR SALE WOULD BE UNLAWFUL PRIOR TO SUCH REGISTRATION OR QUALIFICATION UNDER
     THE SECURITIES LAWS OF ANY SUCH STATE.
<PAGE>   5
 
FUND EXPENSES
 
The purpose of the following table is to help you understand the various costs
and expenses that you, as a shareholder, will bear directly in connection with
an investment in each Fund's Class D Shares ("Direct Expenses"). The table below
does not reflect any of the operating costs and investment advisory fees of the
Underlying Portfolios. In addition to the Direct Expenses, Class D Shareholders
of the Funds will indirectly bear their pro rata share of the expenses of the
Underlying Portfolios ("Indirect Expenses"). See "Indirect Expenses."
 
SHAREHOLDER TRANSACTION EXPENSES (as a percentage of offering price)
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                               DIVERSIFIED
                                   DIVERSIFIED                   GLOBAL     DIVERSIFIED  DIVERSIFIED  DIVERSIFIED
                                   CONSERVATIVE  DIVERSIFIED    MODERATE     MODERATE      GLOBAL       GLOBAL     DIVERSIFIED
                                      INCOME     CONSERVATIVE    GROWTH       GROWTH       GROWTH        STOCK     U.S. STOCK
                                       FUND          FUND         FUND         FUND         FUND         FUND         FUND
                                   ------------  ------------  -----------  -----------  -----------  -----------  ----------
<S>                                <C>           <C>           <C>          <C>          <C>          <C>          <C>       
Maximum Sales Charge Imposed on
 Purchase                               None          None          None         None         None         None        None
Maximum Sales Charge Imposed on
  Reinvested Dividends                  None          None          None         None         None         None        None
Maximum Contingent Deferred Sales
  Charge                                None          None          None         None         None         None        None
Wire Redemption Fees                    None          None          None         None         None         None        None
Exchange Fees                           None          None          None         None         None         None        None
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>
 
ANNUAL OPERATING EXPENSES (DIRECT EXPENSES)
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                <C>           <C>           <C>          <C>          <C>          <C>          <C>       
Management/Advisory Fees (after
  waivers) (1)                          .00%          .00%          .00%         .00%         .00%         .00%        .00%
12b-1 Fees                              .75%          .75%          .75%         .75%         .75%         .75%        .75%
Total Other Expenses (after
  expense reimbursements) (2) (3)       .37%          .37%          .37%         .37%         .37%         .37%        .37%
      Shareholder Service Fees          .25%          .25%          .25%         .25%         .25%         .25%        .25%
- ---------------------------------------------------------------------------------------------------------------------
Total Operating Expenses (after
  waivers and
  expense reimbursements) (3)          1.12%         1.12%         1.12%        1.12%        1.12%        1.12%       1.12%
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>
 
(1)  SFM is currently waiving its advisory and management fees. Absent fee
    waivers, management and advisory fees for each Fund would be .30%. These fee
    waivers are voluntary and may be discontinued by SFM at any time in its sole
    discretion.
(2)  Absent SFM's expense reimbursement, other expenses are estimated to be .39%
    for the current fiscal year. Each Fund's Shareholder Servicing Fees will be
    reduced in an amount equal to the Fund's pro rata share of any Shareholder
    Servicing Servicing Fees paid by any Underlying Portfolio in which such Fund
    invests, but only to the extent necessary to comply with a condition of the
    Trust's SEC exemptive order. See "General Investment Policies of the Funds."
(3)  Absent SFM's fee waivers and expense reimbursements, the total operating
    expenses of each Fund's Class D Shares would be 1.44%.
 
EXAMPLE
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                          1 YR.    3 YRS.
                                                                                                          -----    ------
<S>                                                                                                       <C>      <C>
An investor in a Fund would pay the following expenses on a $1,000 investment assuming: (1) a 5% annual
  return, and (2) redemption at the end of each time period:
    Diversified Conservative Income Fund                                                                   $11      $ 36
    Diversified Conservative Fund                                                                          $11      $ 36
    Diversified Global Moderate Growth Fund                                                                $11      $ 36
    Diversified Moderate Growth Fund                                                                       $11      $ 36
    Diversified Global Growth Fund                                                                         $11      $ 36
    Diversified Global Stock Fund                                                                          $11      $ 36
    Diversified U.S. Stock Fund                                                                            $11      $ 36
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>
 
THE EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE
EXPENSES. ACTUAL EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.
 
The purpose of the expense tables and example is to assist the investor in
understanding the various costs and expenses that may be directly or indirectly
borne by investors in Class D Shares of each Fund. A person who purchases shares
through an account with a financial institution may be charged separate fees by
that institution in addition to those set forth above. The information set forth
in the foregoing table and example relates to the Class D Shares. Class D Shares
are subject to the same management and advisory expenses as Class A Shares, but
are also subject to different distribution, shareholder servicing and transfer
agent expenses. Additional information may be found under "The Adviser and
Manager of the Funds" and "Distribution of Fund Shares and Shareholder
Servicing."
 
Long-term Class D shareholders may pay more than the economic equivalent of the
maximum front-end sales charges otherwise permitted by the Compliance Rules of
the National Association of Securities Dealers.
 
                                        2
<PAGE>   6
 
INDIRECT EXPENSES
 
Investors in the Funds should recognize that they may invest directly in the
Underlying Portfolios and that, by investing in Underlying Portfolios through
the Funds, they will bear not only their proportionate share of the expenses of
the Funds (including operating costs and investment advisory and administrative
fees to the extent the Adviser has not elected to waive such fees), but will
also indirectly bear similar expenses of the Underlying Portfolios ("Indirect
Expenses"). Moreover, the investment returns of the Funds will be net of the
expenses of the Underlying Portfolios. Investors that purchase shares of the
Funds through managed account programs who pay separate advisory fees for asset
allocation services should recognize that the combined expenses of the program
and the Funds (including the expenses charged by the Underlying Portfolios) may
involve greater fees and expenses than those present in other types of
investments. In addition, a shareholder of a Fund will indirectly bear expenses
paid by an Underlying Portfolio related to the distribution of its shares, if
any. In the case of Class D Shares, any Fund shareholder servicing fees will be
reduced in an amount equal to the Fund's pro rata portion of the shareholder
servicing fees paid by any Underlying Portfolio in which the Fund invests, but
only to the extent necessary to comply with a condition of the Trust's SEC
exemptive Order. Currently, Class A Shares of the Underlying Portfolios are
subject to a shareholder servicing fee of up to .25%. See "Distribution of Fund
Shares and Shareholder Servicing."
 
The chart below sets forth the expense ratios for each of the Underlying
Portfolios in which the Funds will invest (based on information as of September
30, 1996).
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                    UNDERLYING PORTFOLIOS ELIGIBLE FOR PURCHASE                       UNDERLYING PORTFOLIOS' EXPENSE RATIOS*
<S>                                                                                   <C>
SIMT Large Cap Growth Portfolio                                                                        .85%
SIMT Large Cap Value Portfolio                                                                         .85%
SIMT Small Cap Growth Portfolio                                                                       1.10%
SIMT Small Cap Value Portfolio                                                                        1.10%
SIT International Equity Portfolio                                                                    1.28%
SIT Emerging Markets Equity Portfolio                                                                 1.95%
SIMT Core Fixed Income Portfolio                                                                       .60%
SIMT High Yield Bond Portfolio                                                                         .85%
SIT International Fixed Income Portfolio                                                              1.00%
SLAT Prime Obligation Portfolio                                                                        .44%
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>
 
* The Funds will purchase only Class A Shares of the Underlying Portfolios. The
  expense ratios of the Class A Shares of the Underlying Portfolios shown above
  reflect existing fee waivers and expense reimbursement arrangements that may
  be discontinued at any time. Absent these fee waivers on the Class A Shares of
  the Underlying Portfolios, these expense ratios would be higher.
 
Set forth below are the Expense Ranges of the Underlying Portfolios in which the
Funds invest. A range is provided since the average assets of each Fund invested
in each of the Underlying Portfolios may fluctuate. The investment ranges for
each Fund are set forth in the "Investment Objectives and Policies of the Funds"
section.
 
EXPENSE RANGES (INDIRECT EXPENSES)
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                                                                                   <C>
Based on the Expense Ratios of the Underlying Portfolios, the range of average weighted                    RANGE OF
  operating expenses for Class D shares of the Funds are expected to be as follows:                        EXPENSES
                                                                                                        ---------
    Diversified Conservative Income Fund                                                              .58% to  .80%
    Diversified Conservative Fund                                                                     .65% to  .90%
    Diversified Global Moderate Growth Fund                                                           .68% to 1.11%
    Diversified Moderate Growth Fund                                                                  .69% to  .97%
    Diversified Global Growth Fund                                                                    .78% to 1.22%
    Diversified Global Stock fund                                                                     .85% to 1.22%
    Diversified U.S. Stock Fund                                                                       .75% to  .95%
- -------------------------------------------------------------------------------------------------------------------
</TABLE>
 
                                        3
<PAGE>   7
 
FINANCIAL HIGHLIGHTS
For a Share Outstanding Throughout the Period -- Unaudited
<TABLE>
<CAPTION>
                                                    Net
                                                 Realized                                                                  Ratio of
                    Net                             and                             Net                         Net        Expenses
                   Asset           Net          Unrealized       Dividends         Asset                      Assets          to
                   Value        Investment         Gains          from Net         Value                      End of       Average
                 Beginning       Income/        (Losses) on      Investment         End           Total       Period         Net
                 of Period        (Loss)        Securities         Income        of Period       Return        (000)        Assets
<S>              <C>            <C>             <C>              <C>             <C>            <C>           <C>          <C>
- ---------------------------------------------------------------------------------------------------------------------
- -----------------------------------------
DIVERSIFIED CONSERVATIVE INCOME FUND
- -----------------------------------------
Class A
Period Ended
07/31/96 (1)      $ 10.12         $ 0.01          $ (0.08)         $(0.01)        $ 10.04        -0.69%**     $ 1,165        0.12%*
- --------------------------------
DIVERSIFIED CONSERVATIVE FUND
- --------------------------------
Class A
Period Ended
07/31/96 (2)      $  9.26         $(0.11)         $  0.03          $ 0.00         $  9.18        -0.85%**     $   976        0.12%*
- --------------------------------------
DIVERSIFIED MODERATE GROWTH FUND
- --------------------------------------
Class A
Period Ended
07/31/96 (3)      $ 10.19         $ 0.02          $ (0.27)         $ 0.00         $  9.94        -2.42%**     $ 5,300        0.12%*
- ----------------------------------
DIVERSIFIED GLOBAL GROWTH FUND
- ----------------------------------
Class A
Period Ended
07/31/96 (4)      $ 10.19         $ 0.01          $ (0.39)         $ 0.00         $  9.81        -3.72%**     $ 3,888        0.12%*
- ------------------------------
DIVERSIFIED U.S. STOCK FUND
- ------------------------------
Class A
Period Ended
07/31/96 (5)      $ 10.27         $ 0.03          $ (0.56)         $ 0.00         $  9.74        -5.16%**     $ 3,631        0.12%*
 
<CAPTION>
 
                                                                                Ratio of
                                               Ratio of       Ratio of      Net Investment
                                                  Net         Expenses          Income/
                                              Investment          to           (Loss) to
                                               Income/         Average          Average
                                              (Loss) to          Net              Net
                                               Average          Assets          Assets         Portfolio
                                                 Net          (Excluding      (Excluding       Turnover
                                                Assets         Waivers)        Waivers)          Rate
<S>                                            <C>            <C>             <C>              <C>
- ---------------------------------------------------------------------------------------------------------
- ------------------------------------
DIVERSIFIED CONSERVATIVE INCOME FUND
- ------------------------------------
Class A
Period Ended
07/31/96 (1)                                    4.79%*          8.51%*          -3.60%*           21%
- -----------------------------
DIVERSIFIED CONSERVATIVE FUND
- -----------------------------
Class A
Period Ended
07/31/96 (2)                                    3.43%*          8.69%*          -5.14%*            2%
- --------------------------------
DIVERSIFIED MODERATE GROWTH FUND
- --------------------------------
Class A
Period Ended
07/31/96 (3)                                    2.59%*          1.91%*           0.80%*            2%
- ------------------------------
DIVERSIFIED GLOBAL GROWTH FUND
- ------------------------------
Class A
Period Ended
07/31/96 (4)                                    2.19%*          2.89%*          -0.58%*            0%
- ---------------------------
DIVERSIFIED U.S. STOCK FUND
- ---------------------------
Class A
Period Ended
07/31/96 (5)                                    1.97%*          3.49%*          -1.40%*           33%
</TABLE>
 
 *  Annualized.
**  Total return has not been annualized.
(1) Commenced operations 06/13/96
(2) Commenced operations 06/26/96
(3) Commenced operations 06/10/96
(4) Commenced operations 06/13/96
(5) Commenced operations 05/13/96
 
                                        4
<PAGE>   8
 
INVESTMENT
OBJECTIVES AND
POLICIES OF
THE FUNDS
 
                      The Funds offer investors the opportunity to invest in
                      certain of the Underlying Portfolios, and are designed
                      primarily for tax-advantaged retirement and other long-
                      term investment or savings accounts, including: Individual
                      Retirement Accounts ("IRAs"), 403(b)(7) tax-sheltered
                      retirement accounts for employees of certain non-profit
                      organizations, 401(k) savings plans, profit-sharing and
                      money-purchase pension plans, and other employer-sponsored
                      pension and savings plans.
                             In order to achieve its investment objective, each
                      Fund invests a percentage of its assets within
                      predetermined percentage ranges in certain of the
                      Underlying Portfolios, which are separately-managed series
                      of the following investment companies: SEI Institutional
                      Managed Trust ("SIMT"), SEI International Trust ("SIT")
                      and SEI Liquid Asset Trust ("SLAT" and, together with SIMT
                      and SIT, the "Underlying Trusts"). The percentages reflect
                      the extent to which each Fund will invest in the
                      particular market segment represented by each Underlying
                      Portfolio, and the varying degrees of potential investment
                      risk and reward represented by each Fund's investments in
                      those market segments and their corresponding Underlying
                      Portfolios. The Adviser may alter these percentage ranges
                      when it deems appropriate. The assets of each Fund will be
                      allocated among each of the Underlying Portfolios in
                      accordance with its investment objective, the Adviser's
                      outlook for the economy, the financial markets and the
                      relative market valuations of the Underlying Portfolios.
                      In addition, in order to meet liquidity needs or for
                      temporary defensive purposes, each Fund may invest its
                      assets directly in cash, money market securities, or other
                      instruments, including stock or bond index futures and
                      options thereon. The investment objective of each Fund is
                      set forth below. Each Fund's investment objective is a
                      fundamental policy, and may not be changed without
                      shareholder approval. There can be no assurance that the
                      Funds will achieve their stated objectives.
 
DIVERSIFIED
CONSERVATIVE
INCOME FUND           The Diversified Conservative Income Fund seeks to provide
                      current income and an opportunity for capital appreciation
                      through limited participation in domestic equity markets.
                      In general, relative to the other Funds, the Diversified
                      Conservative Income Fund should offer investors the
                      potential for a medium to high level of income and the
                      potential for a low to medium level of capital growth,
                      while subjecting investors
 
                                        5
<PAGE>   9
 
to a medium level of principal risk. The Fund will invest in the following
Underlying Portfolios within the percentage ranges set forth below:
 
<TABLE>
<CAPTION>
                                                                      INVESTMENT RANGE (PERCENT OF THE
                               UNDERLYING PORTFOLIO            DIVERSIFIED CONSERVATIVE INCOME FUND'S ASSETS)
                      ---------------------------------------------------------------------------------------
                      <S>                                      <C>
                      SIMT Large Cap Growth                                         5-20%
                      SIMT Large Cap Value                                          5-20%
                      SIMT Small Cap Growth                                         0-15%
                      SIMT Small Cap Value                                          0-15%
                      SIMT Core Fixed Income                                       50-65%                       
                      SLAT Prime Obligation                                         0-30%
                      ---------------------------------------------------------------------------------------
</TABLE>
 
DIVERSIFIED
CONSERVATIVE FUND     The Diversified Conservative Fund seeks to provide current
                      income with the opportunity for capital appreciation
                      through limited participation in the domestic and
                      international equity markets. In general, relative to the
                      other Funds, the Diversified Conservative Fund should
                      offer investors the potential for a medium level of income
                      and the potential for a low to medium level of capital
                      growth, while subjecting investors to a medium level of
                      principal risk. The Fund will invest in the following
                      Underlying Portfolios within the percentage ranges set
                      forth below:
 
<TABLE>
<CAPTION>
                                                                      INVESTMENT RANGE (PERCENT OF THE
                               UNDERLYING PORTFOLIO               DIVERSIFIED CONSERVATIVE FUND'S ASSETS)
                      ---------------------------------------------------------------------------------------
                      <S>                                      <C>
                      SIMT Large Cap Growth                                         5-20%
                      SIMT Large Cap Value                                          5-20%
                      SIMT Small Cap Growth                                         0-15%
                      SIMT Small Cap Value                                          0-15%
                      SIT International Equity                                      5-20%
                      SIMT Core Fixed Income                                       40-55%
                      SIT International Fixed Income                               10-25%
                      SLAT Prime Obligation                                         0-30%
                      ---------------------------------------------------------------------------------------
</TABLE>
 
                                        6
<PAGE>   10
 
DIVERSIFIED GLOBAL
MODERATE
GROWTH FUND           The Diversified Global Moderate Growth Fund seeks to
                      provide long-term capital appreciation through
                      participation in the domestic and global equity markets
                      with a limited level of current income. In general,
                      relative to the other funds, the Diversified Global
                      Moderate Growth Fund should offer investors the potential
                      for a medium level of income and the potential for a
                      medium level of capital growth, while subjecting investors
                      to a medium level of principal risk. The Fund will invest
                      in the following Underlying Portfolios within the
                      percentage ranges set forth below:
 
<TABLE>
<CAPTION>
                                                                    INVESTMENT RANGE (PERCENT OF THE
                              UNDERLYING PORTFOLIO          DIVERSIFIED GLOBAL MODERATE GROWTH FUND'S ASSETS)
                      ---------------------------------------------------------------------------------------
                      <S>                                   <C>
                      SIMT Large Cap Growth                                       10-25%
                      SIMT Large Cap Value                                        10-25%
                      SIMT Small Cap Growth                                        0-15%
                      SIMT Small Cap Value                                         0-15%
                      SIT International Equity                                    10-25%
                      SIT Emerging Markets Equity                                  0-15%
                      SIMT Core Fixed Income                                      20-35%
                      SIMT High Yield Bond                                         5-20%
                      SIT International Fixed Income                               0-15%
                      SLAT Prime Obligation                                        0-30%
                      ---------------------------------------------------------------------------------------
</TABLE>
 
DIVERSIFIED
MODERATE
GROWTH FUND           The Diversified Moderate Growth Fund seeks to provide
                      long-term capital appreciation with a limited level of
                      current income. In general, relative to the other Funds,
                      the Diversified Moderate Growth Fund should offer
                      investors the potential for a medium level of income and
                      the potential for a medium level of capital growth, while
                      subjecting investors to a medium level of principal risk.
                      The Fund will invest in the following Underlying
                      Portfolios within the percentage ranges set forth below:
 
<TABLE>
<CAPTION>
                                                                    INVESTMENT RANGE (PERCENT OF THE
                              UNDERLYING PORTFOLIO             DIVERSIFIED MODERATE GROWTH FUND'S ASSETS)
                      ---------------------------------------------------------------------------------------
                      <S>                                   <C>
                      SIMT Large Cap Growth                                       10-25%
                      SIMT Large Cap Value                                        10-25%
                      SIMT Small Cap Growth                                        0-15%
                      SIMT Small Cap Value                                         0-15%
                      SIT International Equity                                    10-25%
                      SIMT Core Fixed Income                                      25-40%
                      SIT International Fixed Income                               5-20%
                      SLAT Prime Obligation                                        0-30%
                      ---------------------------------------------------------------------------------------
</TABLE>
 
DIVERSIFIED GLOBAL
GROWTH FUND           The Diversified Global Growth Fund (formerly the
                      Diversified Growth Fund) seeks to provide long-term
                      capital appreciation. Current income is a secondary
                      consideration. In general, relative to the other Funds,
                      the Diversified Global Growth
 
                                        7
<PAGE>   11
 
                      Fund should offer investors the potential for a low to 
                      medium level of income and the potential for a medium to 
                      high level of capital growth, while subjecting investors 
                      to a higher level of principal risk. The Fund will 
                      invest in the following Underlying Portfolios within the 
                      percentage ranges set forth below:
 
<TABLE>
<CAPTION>
                                                                      INVESTMENT RANGE (PERCENT OF THE
                                UNDERLYING PORTFOLIO                 DIVERSIFIED GROWTH FUND'S ASSETS)
                      -------------------------------------------------------------------------------------
                      <S>                                        <C>
                      SIMT Large Cap Growth                                        15-30%
                      SIMT Large Cap Value                                         15-30%
                      SIMT Small Cap Growth                                         0-15%
                      SIMT Small Cap Value                                          0-15%
                      SIT International Equity                                     10-25%
                      SIT Emerging Markets Equity                                   5-20%
                      SIMT Core Fixed Income                                        5-20%
                      SIMT High Yield Bond                                          0-15%
                      SIT International Fixed Income                                0-15%
                      SLAT Prime Obligation                                         0-30%
                      -------------------------------------------------------------------------------------
</TABLE>
 
DIVERSIFIED GLOBAL
STOCK FUND            The Diversified Global Stock Fund seeks to provide
                      long-term capital appreciation through a diversified
                      global equity strategy. In general, relative to the other
                      Funds, the Diversified Global Stock Fund should offer
                      investors the potential for a lower level of income and
                      the potential for a higher level of capital growth, while
                      subjecting investors to medium to high levels of principal
                      risk. The Fund will invest in the following Underlying
                      Portfolios within the percentage ranges set forth below:
 
<TABLE>
<CAPTION>
                                                                      INVESTMENT RANGE (PERCENT OF THE
                                UNDERLYING PORTFOLIO              DIVERSIFIED GLOBAL STOCK FUND'S ASSETS)
                      -------------------------------------------------------------------------------------
                      <S>                                        <C>
                      SIMT Large Cap Growth                                        20-35%
                      SIMT Large Cap Value                                         20-35%
                      SIMT Small Cap Growth                                         0-15%
                      SIMT Small Cap Value                                          0-15%
                      SIT International Equity                                     15-30%
                      SIT Emerging Markets Equity                                   5-20%
                      SLAT Prime Obligation                                         0-30%
                      -------------------------------------------------------------------------------------
</TABLE>
 
DIVERSIFIED
U.S. STOCK FUND       The Diversified U.S. Stock Fund seeks to provide long-term
                      capital appreciation through a diversified domestic equity
                      strategy. Current income is an incidental consideration.
                      In general, relative to the other Funds, the Diversified
                      U.S. Stock Fund should offer investors the potential for a
                      lower level of income and the potential for a high level
                      of capital growth, while subjecting investors to a medium
 
                                        8
<PAGE>   12
 
                      to high level of principal risk. The Fund will invest in 
                      the following Underlying Portfolios within the 
                      percentage ranges set forth below:
 
<TABLE>
<CAPTION>
                                                                       INVESTMENT RANGE (PERCENT OF THE
                                  UNDERLYING PORTFOLIO               DIVERSIFIED U.S. STOCK FUND'S ASSETS)
                      ------------------------------------------------------------------------------------
                      <S>                                            <C>
                      SIMT Large Cap Growth                                          30-45%
                      SIMT Large Cap Value                                           30-45%
                      SIMT Small Cap Growth                                           5-20%
                      SIMT Small Cap Value                                            5-20%
                      SLAT Prime Obligation                                           0-30%
                      ------------------------------------------------------------------------------------
</TABLE>
 
GENERAL
INVESTMENT
POLICIES
OF THE FUNDS
 
                      The Funds will attempt to achieve their investment
                      objectives by purchasing shares of the Underlying
                      Portfolios within the percentage ranges set forth above.
                      The SEC has issued an exemptive order to the Trust dated
                      December 20, 1995 (the "Order"), permitting the Funds to
                      acquire up to 100% of the Shares of any of the Underlying
                      Portfolios under certain conditions. Absent this Order,
                      the Investment Company Act of 1940 (the "1940 Act") would
                      substantially limit the ability of the Funds and
                      Underlying Portfolios to engage in these transactions.
                             In addition to purchasing shares of the Underlying
                      Portfolios, the Funds may use futures contracts and
                      options in order to remain effectively fully invested in
                      proportions consistent with SFM's current asset allocation
                      strategy in an efficient and cost effective manner.
                      Specifically, each Fund may enter into futures contracts
                      and options thereon provided that the aggregate deposits
                      required on these contracts do not exceed 5% of the Fund's
                      total assets.
                             Futures contracts and options may also be used to
                      reallocate the Funds' assets among asset categories while
                      minimizing transaction costs, to maintain cash reserves
                      while simulating full investment, to facilitate trading or
                      to seek higher investment returns or simulate full
                      investment when a futures contract is priced attractively
                      or is otherwise considered more advantageous than the
                      underlying security or index. The Funds will not use
                      futures contracts or options to leverage their portfolios.
                             In order to meet liquidity needs, or for temporary
                      defensive purposes, the Funds may purchase money market
                      securities or other short-term debt instruments rated in
                      one of the top two categories by a nationally recognized
                      statistical rating organization ("NRSRO") at the time of
                      purchase or, if not rated, determined to be of comparable
                      quality by the Adviser. To the extent that a Fund is
                      engaged in temporary defensive investing, it will not be
                      pursuing its investment objective. See "Description of
                      Permitted Investments and Risk Factors of the Underlying
                      Portfolios."
 
                                        9
<PAGE>   13
 
RISK FACTORS
OF THE FUNDS
 
                      Prospective investors in the Funds should consider the
                      following risk factors:
                      - Any investment in a mutual fund involves risk and,
                        although the Funds invest in a number of Underlying
                        Portfolios, this practice does not eliminate investment
                        risk;
                      - Under certain circumstances, an Underlying Portfolio may
                        determine to make payment of a redemption request by a
                        Fund wholly or partly by a distribution in kind of
                        securities from its portfolio, instead of cash, in
                        accordance with the rules of the SEC. In such cases, the
                        Funds may hold securities distributed by an Underlying
                        Portfolio until the Adviser determines that it is
                        appropriate to dispose of such securities;
                      - Certain Underlying Portfolios may: invest a portion of
                        their assets in foreign securities; enter into forward
                        currency transactions; lend their portfolio securities;
                        enter into stock index, interest rate and currency
                        futures contracts, and options on such contracts; engage
                        in other types of options transactions; make short
                        sales; purchase zero coupon and payment-in-kind bonds;
                        and engage in various other investment practices.
                        Further information about these investment policies and
                        practices can be found under "Investment Objectives and
                        Policies of the Underlying Portfolios" and "Description
                        of Permitted Investments and Risk Factors of the
                        Underlying Portfolios" in this Prospectus and in the
                        Trust's Statement of Additional Information, and in the
                        prospectuses of each of the Underlying Portfolios;
                      - The Diversified Global Growth Fund can invest as much as
                        15% of its assets in the SIMT High Yield Bond Portfolio.
                        As a result, this Fund will be subject to the risks
                        associated with high yield investing;
                      - Certain Funds invest at least 10% and can invest as much
                        as 25% of their assets in the SIT International Fixed
                        Income Portfolio, which invests primarily in foreign
                        fixed-income securities. Certain other Funds invest at
                        least 20% and can invest as much as 50% of their assets
                        in Underlying Portfolios that invest primarily in
                        foreign equity securities. These investments will
                        subject the Funds to risks associated with investing in
                        foreign securities; and
                      - The officers and trustees of the Trust also serve as
                        officers and trustees of the Underlying Trusts. In
                        addition, the Adviser to each Fund serves as investment
                        adviser to certain of the Underlying Portfolios.
                        Conflicts may arise as these persons seek to fulfill
                        their fiduciary responsibilities at both levels.
 
                      Further information regarding these risk factors may be
                      found elsewhere in this Prospectus and in the Statement of
                      Additional Information.
 
                                       10
<PAGE>   14
 
INVESTMENT
LIMITATIONS OF
THE FUNDS
 
                      The following investment limitations are fundamental for
                      each Fund, and may not be changed without shareholder
                      approval.
                      1. Each Fund will concentrate its investments in mutual
                         fund shares.
                      2. Each Fund may borrow money in an amount up to 33 1/3%
                         of the value of its total assets, provided that, for
                         purposes of this limitation, investment strategies
                         which either obligate a Fund to purchase securities or
                         require a Fund to segregate assets are not considered
                         to be borrowings. Except where a Fund has borrowed
                         money for temporary purposes in amounts not exceeding
                         5% of its assets, asset coverage of 300% is required
                         for all borrowings.
 
                      Each Fund is subject to further fundamental and
                      non-fundamental limitations which are described in the
                      Trust's Statement of Additional Information.
 
PORTFOLIO TURNOVER
OF THE FUNDS
 
                      Each Fund's portfolio turnover rate (i.e., the rate at
                      which the Fund buys and sells shares of the Underlying
                      Portfolios) is not expected to exceed 10%. Asset
                      reallocation decisions typically will occur only once
                      every quarter. However, if market conditions warrant, SFM
                      may make more frequent reallocation decisions, which will
                      result in a higher portfolio turnover rate. The Funds will
                      purchase or sell shares of the Underlying Portfolios: (a)
                      to accommodate purchases and redemptions of each Fund's
                      shares; (b) in response to market or other economic
                      conditions; and (c) to maintain or modify the allocation
                      of each Fund's assets among the Underlying Portfolios
                      within the percentage limits described above or as altered
                      by SFM from time to time. It is important to note,
                      however, that the portfolio turnover rate of certain of
                      the Underlying Portfolios (i.e., the rate at which the
                      Underlying Portfolios buy and sell securities), may exceed
                      100%. Such a turnover rate may result in higher
                      transaction costs and may result in additional tax
                      consequences for shareholders (including the Funds).
 
                                       11
<PAGE>   15
 
INVESTMENT GOALS
OF THE UNDERLYING
PORTFOLIOS
 
                      The following table describes the investment goal of each
                      Underlying Portfolio:
 
<TABLE>
<CAPTION>
                        UNDERLYING PORTFOLIO                 INVESTMENT GOAL
                        -----------------------------------------------------------------------------
                        <S>                                  <C>
                        SIMT Large Cap Growth                Growth of Capital
                        SIMT Large Cap Value                 Growth of Capital and Income
                        SIMT Small Cap Growth                Aggressive Growth of Capital
                        SIMT Small Cap Value                 Aggressive Growth of Capital and Income
                        SIT International Equity             Growth of Capital
                        SIT Emerging Markets Equity          Aggressive Growth of Capital
                        SIMT Core Fixed Income               Income
                        SIMT High Yield Bond                 Aggressive Income
                        SIT International Fixed Income       Income
                        SLAT Prime Obligation                Price Stability
                        -----------------------------------------------------------------------------
</TABLE>
 
INVESTMENT
OBJECTIVES AND
POLICIES OF THE
UNDERLYING
PORTFOLIOS
 
                      Set forth below are the investment objectives and policies
                      that apply to the Underlying Portfolios. The investment
                      objective of each Underlying Portfolio is a fundamental
                      policy of that Portfolio, and may not be changed without
                      approval of such Portfolio's shareholders, which may
                      include the Fund. Certain general investment policies that
                      apply to two or more of the Underlying Portfolios are set
                      forth in the "General Investment Policies of the
                      Underlying Portfolios" section, below. There can be no
                      assurance that the Underlying Portfolios will achieve
                      their respective investment objectives. For additional
                      information regarding the investments and investment
                      techniques of the Underlying Portfolios, as well as the
                      risk factors attendant with those investments and
                      investment techniques, please see the "Description of
                      Permitted Investments and Risk Factors of the Underlying
                      Portfolios" section of the Prospectus.
 
SIMT LARGE CAP
GROWTH PORTFOLIO      The SIMT Large Cap Growth Portfolio seeks to provide
                      capital appreciation. Under normal market conditions, the
                      Portfolio will invest at least 65% of its total assets in
                      equity securities of large companies (i.e., companies with
                      market capitalizations of more than $1 billion) which, in
                      the advisers' opinion, possess significant growth
                      potential. Any remaining assets may be invested in fixed
                      income securities or in equity securities of smaller
                      companies that the Portfolio's advisers believe are
 
                                       12
<PAGE>   16
 
                      appropriate in light of the Portfolio's objective. 
                      Equity securities include common stock, preferred stock, 
                      warrants or rights to subscribe to common stock and, in 
                      general, any security that is convertible into or 
                      exchangeable for common stock. Fixed income securities 
                      must be rated investment grade or better, i.e., rated at 
                      least BBB by Standard & Poor's Corporation ("S&P") or 
                      Baa by Moody's Investors Service, Inc. ("Moody's").
 
SIMT LARGE CAP
VALUE PORTFOLIO       The SIMT Large Cap Value Portfolio seeks to provide
                      long-term growth of capital and income. Under normal
                      market conditions, the Portfolio will invest at least 65%
                      of its total assets in a diversified portfolio of high
                      quality, income-producing common stocks of large companies
                      (i.e., companies with market capitalizations of more than
                      $1 billion) which, in the advisers' opinion, are
                      undervalued in the marketplace at the time of purchase. In
                      general, the advisers characterize high quality securities
                      as those that have above-average reinvestment rates. The
                      advisers also consider other factors, such as earnings and
                      dividend growth prospects as well as industry outlook and
                      market share. Equity securities include common stock,
                      preferred stock, warrants or rights to subscribe to common
                      stock and, in general, any security that is convertible
                      into or exchangeable for common stock. Any remaining
                      assets may be invested in investment grade fixed income
                      securities.
 
SIMT SMALL CAP
GROWTH PORTFOLIO      The SIMT Small Cap Growth Portfolio seeks to provide
                      long-term capital appreciation. Under normal market
                      conditions, the Portfolio will invest at least 65% of its
                      total assets in the equity securities of smaller growth
                      companies (i.e., companies with market capitalizations of
                      less than $1 billion) which, in the advisers' opinion, are
                      in an early stage or transitional point in their
                      development and have demonstrated or have the potential
                      for above average capital growth. The advisers will select
                      companies that have the potential to gain market share in
                      their industry, achieve and maintain high and consistent
                      profitability or produce increases in earnings. The
                      advisers also seek companies with strong company
                      management and superior fundamental strength.
                             Small capitalization companies have the potential
                      to show earnings growth over time that is well above the
                      growth rate of the overall economy. Any remaining assets
                      may be invested in the equity securities of more
                      established companies that the advisers believe may offer
                      strong capital appreciation potential due to their
                      relative market position, anticipated earnings growth,
                      changes in management or other similar opportunities.
                      Equity securities include common stock, preferred stock,
                      warrants and rights to subscribe to common stock and, in
                      general, any security that is convertible into or
                      exchangeable for common stock.
                             In order to meet liquidity needs, or for temporary
                      defensive purposes, the Portfolio may invest all or a
                      portion of its assets in common stocks of larger, more
                      established companies, fixed income securities, cash or
                      money market securities. Fixed income securities will only
                      be purchased if they are rated investment grade or
 
                                       13
<PAGE>   17
 
                      better. Investment grade bonds include securities rated 
                      at least BBB by S&P or Baa by Moody's. Money market 
                      securities will only be purchased if they have been
                      given one of the two top ratings by a nationally 
                      recognized statistical rating organization ("NRSRO"), or 
                      if not rated, determined to be of comparable quality by
                      the Portfolio's advisers.
 
SIMT SMALL CAP
VALUE PORTFOLIO       The SIMT Small Cap Value Portfolio seeks to provide
                      capital appreciation. Under normal market conditions, the
                      Portfolio will invest at least 65% of its total assets in
                      the equity securities of smaller companies (i.e.,
                      companies with market capitalizations of less than $1
                      billion) which, in the advisers' opinion, have prices that
                      appear low relative to certain fundamental characteristics
                      such as earnings, book value, or return on equity. Any
                      remaining assets may be invested in fixed income
                      securities or equity securities of larger, more
                      established companies that the Portfolio's advisers
                      believe are appropriate in light of the Portfolio's
                      objective. Equity securities include common stock,
                      preferred stock, warrants and rights to subscribe to
                      common stock and, in general, any security that is
                      convertible into or exchangeable for common stock. Fixed
                      income securities must be rated investment grade or
                      better, i.e., rated at least BBB by S&P or Baa by Moody's.
 
SIT INTERNATIONAL
EQUITY PORTFOLIO      The SIT International Equity Portfolio seeks to provide
                      long-term capital appreciation by investing primarily in a
                      diversified portfolio of equity securities of non-U.S.
                      issuers. Under normal circumstances, at least 65% of the
                      Portfolio's assets will be invested in equity securities
                      of non-U.S. issuers located in at least three countries
                      other than the United States. The Portfolio may enter into
                      forward foreign currency contracts as a hedge against
                      possible variations in foreign exchange rates. A forward
                      foreign currency contract is a commitment to purchase or
                      sell a specified currency, at a specified future date, at
                      a specified price. The Portfolio may enter into forward
                      foreign currency contracts to hedge a specific security
                      transaction or to hedge a portfolio position. These
                      contracts may be bought or sold to protect the Portfolio,
                      to some degree, against a possible loss resulting from an
                      adverse change in the relationship between foreign
                      currencies and the U.S. dollar. The Portfolio may also
                      invest in options on currencies.
                             Securities of non-U.S. issuers purchased by the
                      Portfolio may be purchased in foreign markets, on U.S.
                      registered exchanges, the over-the-counter market or in
                      the form of sponsored or unsponsored American Depositary
                      Receipts ("ADRs") traded on registered exchanges or NASDAQ
                      or sponsored or unsponsored European Depositary Receipts
                      ("EDRs"), Continental Depositary Receipts ("CDRs") or
                      Global Depositary Receipts ("GDRs"). The Portfolio will
                      typically invest in equity securities listed on recognized
                      foreign exchanges, but may also invest in securities
                      traded in over-the-counter markets. The Portfolio expects
                      its investments to emphasize both large and intermediate
                      capitalization companies.
 
                                       14
<PAGE>   18
 
                             The Portfolio expects to be fully invested in its
                      primary investments described above, but may invest up to
                      35% of its total assets in U.S. or non-U.S. cash reserves;
                      money market instruments; swaps; options on securities,
                      non-U.S. indices and currencies; futures contracts,
                      including stock index futures contracts; and options on
                      futures contracts.
                             Permissible money market instruments include
                      securities issued or guaranteed by the United States
                      Government, its agencies or instrumentalities; securities
                      issued or guaranteed by non-U.S. governments, which are
                      rated at time of purchase A or higher by S&P or Moody's,
                      or are determined by the advisers to be of comparable
                      quality; repurchase agreements; certificates of deposit
                      and bankers' acceptances issued by banks or savings and
                      loan associations having net assets of at least $500
                      million as of the end of their most recent fiscal year;
                      high-grade commercial paper; and other long- and
                      short-term debt instruments which are rated at the time of
                      purchase A or higher by S&P or Moody's and which, with
                      respect to such long-term debt instruments, are within 397
                      days of their maturity.
                             The Portfolio is also permitted to acquire floating
                      and variable rate securities and purchase securities on a
                      when-issued or delayed delivery basis. Although permitted
                      to do so, the Portfolio does not currently intend to
                      invest in securities issued by passive foreign investment
                      companies or to engage in securities lending.
                             For temporary defensive purposes, when an adviser
                      determines that market conditions warrant, the Portfolio
                      may invest up to 50% of its assets in the U.S. and
                      non-U.S. money market instruments described above and
                      other U.S. and non-U.S. long- and short-term debt
                      instruments which are rated BBB or higher by S&P or Baa or
                      higher by Moody's at the time of purchase, or are
                      determined by the adviser to be of comparable quality; may
                      hold a portion of such assets in cash; and may invest in
                      securities of supranational entities which are rated A or
                      higher by S&P or Moody's at the time of purchase, or are
                      determined by the adviser to be of comparable quality.
 
SIT EMERGING
MARKETS EQUITY
PORTFOLIO             The SIT Emerging Markets Equity Portfolio seeks to provide
                      capital appreciation by investing primarily in a
                      diversified portfolio of equity securities of emerging
                      market issuers. Under normal circumstances, at least 65%
                      of the Portfolio's assets will be invested in equity
                      securities of emerging market issuers. Under normal market
                      conditions, the Portfolio maintains investments in at
                      least six emerging market countries and does not invest
                      more than 35% of its total assets in any one emerging
                      market country. For these purposes, the Portfolio defines
                      an emerging market country as any country the economy and
                      market of which the World Bank or the United Nations
                      considers to be emerging or developing. The Portfolio's
                      advisers consider emerging market issuers to be companies
                      the securities of which are principally traded in the
                      capital markets of emerging market countries: that derive
                      at least 50% of their total revenue from either goods
                      produced or services
 
                                       15
<PAGE>   19
 
                      rendered in emerging market countries, regardless of 
                      where the securities of such companies are principally 
                      traded; or that are organized under the laws of and have 
                      a principal office in an emerging market country. In 
                      addition to its primary investments, described above, 
                      the Portfolio may invest up to 35% of its total assets 
                      in debt securities, including up to 5% of its total 
                      assets in debt securities rated below investment grade. 
                      These debt securities will include debt securities of 
                      emerging market companies. Bonds rated below investment 
                      grade are often referred to as "junk bonds." Such 
                      securities involve greater risk of default or price 
                      declines than investment grade securities.
                             The Portfolio may invest in certain debt securities
                      issued by the governments of emerging market countries
                      that are or may be eligible for conversion into
                      investments in emerging market companies under debt
                      conversion programs sponsored by such governments.
                             The Portfolio may invest in futures contracts and
                      purchase securities on a when-issued or delayed delivery
                      basis. The Portfolio may also purchase and write options
                      to buy or sell futures contracts.
                             For temporary defensive purposes, when an adviser
                      determines that market conditions warrant, the Portfolio
                      may invest up to 20% of its total assets in the equity
                      securities of companies constituting the Morgan Stanley
                      Capital International Europe, Australia, Far East Index
                      (the "EAFE Index"). These companies typically have larger
                      average market capitalizations than the emerging market
                      companies in which the Portfolio generally invests.
                             The SIT Emerging Markets Equity Portfolio uses a
                      proprietary, quantitative asset allocation model. This
                      model employs mean-variance optimization, a process used
                      in developed markets based on modern portfolio theory and
                      statistics. Mean-variance optimization helps determine the
                      percentage of assets to invest in each country to maximize
                      expected returns for a given risk level. The Portfolio
                      invests in those countries that the advisers expect to
                      have the highest risk/reward tradeoff when incorporated
                      into a total portfolio context. The advisers attempt to
                      construct a portfolio of emerging market investments that
                      approximates the risk level of an internationally
                      diversified portfolio of securities in developed markets.
                      This "top-down" country selection is combined with
                      "bottom-up" fundamental industry analysis and stock
                      selection based on original research, publicly available
                      information, and company visits.
                             The Portfolio's investments in emerging markets can
                      be considered speculative, and therefore may offer higher
                      potential for gains and losses than developed markets of
                      the world. With respect to any emerging country, there is
                      the greater potential for nationalization, expropriation
                      or confiscatory taxation, political changes, government
                      regulation, social instability or diplomatic developments
                      (including war) which could affect adversely the economies
                      of such countries or investments in such countries. The
                      economies of developing countries generally are
 
                                       16
<PAGE>   20
 
                      heavily dependent upon international trade and, 
                      accordingly, have been and may continue to be adversely 
                      affected by trade barriers, exchange controls, managed
                      adjustments in relative currency values and other 
                      protectionist measures imposed or negotiated by the 
                      countries with which they trade.
 
SIMT CORE FIXED
INCOME PORTFOLIO      The SIMT Core Fixed Income Portfolio seeks to provide
                      current income consistent with the preservation of
                      capital. Under normal market conditions, the Portfolio
                      will invest at least 65% of its total assets in fixed
                      income securities that are rated investment grade or
                      better, i.e., rated in one of the four highest rating
                      categories by an NRSRO at the time of purchase, or, if not
                      rated, determined to be of comparable quality by the
                      advisers. Fixed income securities in which the Portfolio
                      may invest consist of: (i) corporate bonds and debentures;
                      (ii) obligations issued by the United States Government,
                      its agencies and instrumentalities; (iii) municipal
                      securities of issuers located in all fifty states, the
                      District of Columbia, Puerto Rico and other U.S.
                      territories and possessions, consisting of municipal bond,
                      municipal notes, tax-exempt commercial paper and municipal
                      lease obligations; (iv) receipts involving U.S. Treasury
                      obligations; (v) mortgage-backed securities; (vi)
                      asset-backed securities; and (vii) zero coupon,
                      pay-in-kind or deferred payment securities.
                             Any remaining assets may be invested in: (i)
                      interest-only and principal-only components of
                      mortgage-backed securities; (ii) mortgage dollar rolls;
                      (iii) securities issued on a when-issued and
                      delayed-delivery basis, including TBA mortgage-backed
                      securities; (iv) warrants; (v) money market securities;
                      and (vi) Yankee obligations. In addition, the Portfolio
                      may purchase or write options, futures (including futures
                      on U.S. Treasury obligations and Eurodollar instruments)
                      and options on futures.
                             Duration is a measure of the expected life of a
                      fixed income security on a cash flow basis. Most debt
                      obligations provide interest payments and a final payment
                      at maturity. Some also have put or call provisions that
                      allow the security to be redeemed at specified dates prior
                      to maturity. Duration incorporates yield, coupon interest
                      payments, final maturity and call features into a single
                      measure. The advisers therefore consider it a more
                      accurate measure of a security's expected life and
                      sensitivity to interest rate changes than is the
                      security's term to maturity.
                             The Portfolio invests in a portfolio with a
                      dollar-weighted average duration that will, under normal
                      market conditions, stay within plus or minus 20% of what
                      the advisers believe to be the average duration of the
                      domestic bond market as a whole. The advisers base their
                      analysis of the average duration of the domestic bond
                      market on bond market indices which they believe to be
                      representative. The advisers currently use the Lehman
                      Aggregate Bond Index for this purpose.
 
SIMT HIGH YIELD
BOND PORTFOLIO        The SIMT High Yield Bond Portfolio seeks to maximize total
                      return. Under normal market conditions, the Portfolio will
                      invest at least 65% of its total assets in fixed-income
                      securities that are rated below investment grade (i.e.,
                      rated below the top four rating categories by an NRSRO at
                      the time of purchase), or, if not rated, are
 
                                       17
<PAGE>   21
 
                      determined to be of comparable quality by the Portfolio's
                      advisers. Below investment grade securities are commonly 
                      referred to as "junk bonds," and generally entail 
                      increased credit and market risk. The achievement of the
                      Portfolio's investment objective may be more dependent 
                      on the advisers' own credit analysis than would be the 
                      case if the Portfolio invested in higher rated 
                      securities. There is no bottom limit on the ratings of 
                      high yield securities that may be purchased or held by 
                      the Portfolio.
                             The Portfolio may invest in all types of fixed
                      income securities issued by domestic and foreign issuers,
                      including: (i) mortgage-backed securities; (ii) asset-
                      backed securities; (iii) zero coupon, pay-in-kind or
                      deferred payment securities; and (iv) variable and
                      floating rate instruments.
                             Any assets of the Portfolio not invested in the
                      fixed income securities described above may be invested
                      in: (i) convertible securities; (ii) preferred stocks;
                      (iii) equity securities; (iv) investment grade fixed
                      income securities; (v) money market securities; (vi)
                      securities issued on a when-issued and delayed-delivery
                      basis, including TBA mortgage-backed securities; (vii)
                      forward foreign currency contracts; and (viii) Yankee
                      obligations. In addition, the Portfolio may purchase or
                      write options, futures and options on futures. The
                      advisers may vary the average maturity of the securities
                      in the Portfolio without limit, and there is no
                      restriction on the maturity of any individual security.
                             The securities purchased by the Portfolio may be
                      rated in the lowest rating category for fixed income
                      securities. Bonds rated C by Moody's are the lowest rated
                      class of bonds, and issues so rated can be regarded as
                      having extremely poor prospects of ever attaining any real
                      investment standing. Bonds are rated D by S&P when the
                      issue is in payment default, or the obligor has filed for
                      bankruptcy. The D rating is used when interest or
                      principal payments are not made on the date due, even if
                      the applicable grace period has not expired, unless S&P
                      believes that such payments will be made during such grace
                      period. The ratings established by each NRSRO represents
                      its opinions of the safety of principal and interest
                      payments (and not the market risk) of bonds and other debt
                      securities they undertake to rate at the time of issuance.
                      Ratings are not absolute standards of quality and may not
                      reflect changes in an issuer's creditworthiness.
                      Accordingly, although the Portfolio's advisers will
                      consider ratings, they will perform their own analyses and
                      will not rely principally on ratings. The advisers will
                      consider, among other things, the price of the security
                      and the financial history and condition, the prospects and
                      the management of an issuer in selecting securities for
                      the Portfolio.
                             RISK FACTORS RELATING TO INVESTING IN LOWER RATED
                      SECURITIES-- Fixed income securities are subject to the
                      risk of an issuer's ability to meet principal and interest
                      payments on the obligation (credit risk), and may also be
                      subject to price volatility due to such factors as
                      interest rate sensitivity, market perception of the
                      creditworthiness of the issuer and general market
                      liquidity (market risk). Lower
 
                                       18
<PAGE>   22
 
                      rated or unrated (i.e., high yield) securities are more 
                      likely to react to developments affecting market and 
                      credit risk than are more highly rated securities, which 
                      primarily react to movements in the general level of 
                      interest rates. The market values of fixed-income 
                      securities tend to vary inversely with the level of 
                      interest rates. Yields and market values of high yield 
                      securities will fluctuate over time, reflecting not only 
                      changing interest rates but the market's perception of 
                      credit quality and the outlook for economic growth. When
                      economic conditions appear to be deteriorating, medium 
                      to lower rated securities may decline in value due to 
                      heightened concern over credit quality, regardless of the
                      prevailing interest rates. Investors should carefully 
                      consider the relative risks of investing in high yield 
                      securities and understand that such securities are not 
                      generally meant for short-term investing.
                             The high yield market is relatively new and its
                      growth has paralleled a long period of economic expansion
                      and an increase in merger, acquisition and leveraged
                      buyout activity. Adverse economic developments can disrupt
                      the market for high yield securities, and severely affect
                      the ability of issuers, especially highly leveraged
                      issuers, to service their debt obligations or to repay
                      their obligations upon maturity which may lead to a higher
                      incidence of default on such securities. In addition, the
                      secondary market for high yield securities, which is
                      concentrated in relatively few market makers, may not be
                      as liquid as the secondary market for more highly rated
                      securities. As a result, the Portfolio could find it more
                      difficult to sell these securities or may be able to sell
                      the securities only at prices lower than if such
                      securities were widely traded. Furthermore, the Portfolio
                      may experience difficulty in valuing certain securities at
                      certain times. Prices realized upon the sale of such lower
                      rated or unrated securities, under these circumstances,
                      may be less than the prices used in calculating the
                      Portfolio's net asset value.
                             Lower rated debt obligations also present risks
                      based on payment expectations. If an issuer calls an
                      obligation for redemption, the Portfolio may have to
                      replace the security with a lower yielding security,
                      resulting in a decreased return for investors. If the
                      Portfolio experiences unexpected net redemptions, it may
                      be forced to sell its higher rated securities, resulting
                      in a decline in the overall credit quality of the
                      Portfolio's investment portfolio and increasing the
                      exposure of the Portfolio to the risks of high yield
                      securities.
 
SIT INTERNATIONAL
FIXED INCOME
PORTFOLIO             The SIT International Fixed Income Portfolio seeks to
                      provide capital appreciation and current income through
                      investment primarily in high quality, non-U.S. dollar
                      denominated government and corporate fixed income
                      securities or debt obligations. Under normal
                      circumstances, at least 65% of the Portfolio's assets will
                      be invested in high quality foreign government and foreign
                      corporate fixed income securities or debt obligations of
                      issuers located in at least three countries other than the
                      United States.
 
                                       19
<PAGE>   23
 
                             The fixed income securities in which the SIT
                      International Fixed Income Portfolio may invest are: (i)
                      fixed income securities issued or guaranteed by a foreign
                      government or one of its agencies, authorities,
                      instrumentalities or political subdivisions; (ii) fixed
                      income securities issued or guaranteed by supranational
                      entities; (iii) fixed income securities issued by foreign
                      corporations; (iv) convertible securities; and (v) fixed
                      income securities issued by foreign banks or bank holding
                      companies. All such investments will be in high quality
                      securities denominated in various currencies, including
                      the European Currency Unit. High quality securities are
                      rated in one of the highest four rating categories by an
                      NRSRO or, of comparable quality at the time of purchase as
                      determined by the adviser.
                             Any remaining assets of the Portfolio will be
                      invested in any of the fixed income securities described
                      above, obligations issued or guaranteed as to principal
                      and interest by the United States Government, its agencies
                      or instrumentalities ("U.S. Government Securities"),
                      swaps, options and futures. The Portfolio may also
                      purchase and write options to buy or sell futures
                      contracts. The Portfolio also may enter into forward
                      currency contracts, purchase securities on a when-issued
                      or delayed delivery basis and engage in short selling.
                      Furthermore, although the Portfolio will concentrate its
                      investments in relatively developed countries, the
                      Portfolio may invest up to 5% of its assets in similar
                      securities or debt obligations that are denominated in the
                      currencies of developing countries and that are of
                      comparable quality to such securities and debt obligations
                      at the time of purchase as determined by the adviser.
                             There are no restrictions on the average maturity
                      of the securities held by the Portfolio or the maturity of
                      any single instrument. Maturities may vary widely
                      depending on the adviser's assessment of interest rate
                      trends and other economic and market factors. In the event
                      a security owned by the Portfolio is downgraded below the
                      rating categories discussed above, the adviser will review
                      the situation and take appropriate action with regard to
                      the security.
                             The Portfolio is a non-diversified investment
                      company, as defined in the 1940 Act, which means that more
                      than 5% of its assets may be invested in one or more
                      issuers, although the adviser does not intend to invest
                      more than 5% of its assets in any single issuer with the
                      exception of securities which are issued or guaranteed by
                      a national government. The value of shares of the
                      Portfolio may be more susceptible to any single economic,
                      political or regulatory occurrence than the shares of a
                      diversified investment company would be. The Portfolio
                      intends to satisfy the diversification requirements
                      necessary to qualify as a regulated investment company
                      under the Internal Revenue Code of 1986, as amended (the
                      "Code").
                             For temporary defensive purposes, when an adviser
                      determines that market conditions warrant, the Portfolio
                      may invest up to 100% of its assets in U.S. dollar
                      denominated fixed income securities and the following
                      domestic and foreign money
 
                                       20
<PAGE>   24
 
                      market instruments: government obligations, certificates 
                      of deposit, bankers' acceptances, time deposits, 
                      commercial paper, short-term corporate debt issues and
                      repurchase agreements. The Portfolio may hold a portion 
                      of its assets in cash for liquidity purposes.
 
SLAT PRIME
OBLIGATION PORTFOLIO  The SLAT Prime Obligation Portfolio seeks to preserve
                      principal value and maintain a high degree of liquidity
                      while providing current income. The Portfolio invests
                      exclusively in: (i) commercial paper rated at least A-1 by
                      S&P or Prime-1 by Moody's at the time of investment or, if
                      not rated, determined by the Adviser to be of comparable
                      quality; (ii) obligations (including certificates of
                      deposit, time deposits, bankers' acceptances and bank
                      notes) of U.S. commercial banks or other institutions that
                      are members of the Federal Reserve System or are insured
                      by the Federal Deposit Insurance Corporation, which banks
                      or institutions have total assets of $500 million or more
                      as shown on their most recent public financial statements
                      at the time of investment, provided that such obligations
                      are rated in the top two short-term rating categories by
                      two or more NRSROs, or one NRSRO if only one NRSRO has
                      rated the security at the time of investment or, if not
                      rated, determined by the adviser to be of comparable
                      quality; (iii) short-term corporate obligations rated AAA
                      or AA by S&P or Aaa or Aa by Moody's at the time of
                      investment or, if not rated, determined by the adviser to
                      be of comparable quality; (iv) short-term obligations
                      issued by state and local governmental issuers, which are
                      rated, at the time of investment, by at least two NRSROs
                      in one of the two highest municipal bond rating
                      categories, and which carry yields that are competitive
                      with those of other types of money market instruments of
                      comparable quality; (v) U.S. Treasury obligations or
                      obligations issued or guaranteed as to principal and
                      interest by agencies or instrumentalities of the U.S.
                      Government; and (vi) repurchase agreements involving any
                      of the foregoing obligations.
                             The Portfolio may invest up to 10% of its net
                      assets in illiquid securities. However, restricted
                      securities, including Rule 144A Securities and Section
                      4(2) commercial paper, that meet the criteria established
                      by the Board of Trustees of the Trust may be considered
                      liquid.
                             The Portfolio may only purchase securities with a
                      remaining maturity of 365 days or less, and, as a matter
                      of non-fundamental policy, will maintain a dollar-weighted
                      average portfolio maturity of 90 days or less. An
                      investment in the Portfolio is neither insured or
                      guaranteed by the U.S. Government and there can be no
                      assurance that the Portfolio will be able to maintain a
                      stable net asset value of $1.00 per share.
 
                                       21
<PAGE>   25
 
GENERAL
INVESTMENT
POLICIES OF THE
UNDERLYING
PORTFOLIOS
Borrowing             Each Underlying Portfolio, except the SLAT Prime
                      Obligation Portfolio, may borrow money to meet redemptions
                      or for temporary or emergency purposes. An Underlying
                      Portfolio will not purchase securities while its
                      borrowings exceed 5% of its total assets.
 
Common Stocks         Each Underlying Portfolio, except the SLAT Prime
                      Obligation, SIMT Core Fixed Income, SIMT High Yield Bond
                      and SIT International Fixed Income Portfolios, will invest
                      in common stocks; provided, however, that the Underlying
                      Portfolios may only invest in such securities if they are
                      listed on registered exchanges or actively traded in the
                      over-the-counter market.
 
Forward Foreign
Currency Contracts    The Underlying Portfolios, except the SIMT Core Fixed
                      Income, SIMT Large Cap Growth, SIMT Small Cap Growth, SIMT
                      Large Cap Value, SIMT Small Cap Value, and SLAT Prime
                      Obligation Portfolios may purchase forward foreign
                      currency contracts.
 
Illiquid Securities   Each Underlying Portfolio's investment in illiquid
                      securities will be limited to 15% of its net assets (10%
                      with respect to the SLAT Prime Obligation, SIT
                      International Equity, SIT Emerging Markets Equity, and SIT
                      International Fixed Income Portfolios).
 
Investment Company
Securities            Each Underlying Portfolio, except the SLAT Prime
                      Obligation Portfolio, may purchase investment company
                      securities, which will result in additional layering of
                      expenses. However, there are legal limits on the amount of
                      such securities that may be acquired by an Underlying
                      Portfolio. As a condition to the Order that was granted to
                      the Trust by the SEC, no Underlying Portfolio in which a
                      Fund invests may purchase: (i) more than 3 percent of the
                      total outstanding voting securities of another registered
                      investment company; (ii) securities issued by such
                      investment company if such securities have an aggregate
                      value of more than 5 percent of the total assets of such
                      Underlying Portfolio; or (iii) securities issued by such
                      investment company and all other investment companies if
                      such securities have an aggregate value of more than 10
                      percent of the total assets of such Underlying Portfolio.
 
Investment Grade
Debt Securities       Each Underlying Portfolio, except the SLAT Prime
                      Obligation Portfolio, may invest in investment grade debt
                      securities. Interest payments and principal security for
                      securities rated in the fourth highest rating category
                      (i.e., BBB by S&P or Baa by Moody's) appear adequate for
                      the present, but certain protective elements may be
                      lacking or may be characteristically unreliable over any
                      great length of time. Such
 
                                       22
<PAGE>   26
 
                      securities lack outstanding investment characteristics
                      and in fact have speculative characteristics as well.
 
Money Market
Instruments           In order to meet liquidity needs or for temporary
                      defensive purposes, the Underlying Portfolios may hold
                      cash reserves and invest in money market instruments
                      (including securities issued or guaranteed by the U.S.
                      Government, its agencies or instrumentalities, repurchase
                      agreements, certificates of deposit and bankers'
                      acceptances issued by banks or savings and loan
                      associations having net assets of at least $500 million as
                      of the end of their most recent fiscal year, high-grade
                      commercial paper and other short-term debt securities)
                      rated at the time of purchase in the top two categories by
                      an NRSRO, or, if not rated, determined by the adviser to
                      be of comparable quality at the time of purchase. To the
                      extent any Underlying Portfolio is engaged in temporary
                      defensive investing, it will not be pursuing its
                      investment objective.
 
Options and Futures   Each Underlying Portfolio, except the SLAT Prime
                      Obligation Portfolio, may purchase or sell options,
                      futures and options on futures. Risks associated with
                      investing in options and futures may include lack of a
                      liquid secondary market, trading restrictions which may be
                      imposed by an exchange and government regulations which
                      may restrict trading.
 
Securities Lending    Each Underlying Portfolio, except the SLAT Prime
                      Obligation Portfolio, may lend its securities to qualified
                      investors for the purpose of realizing additional income.
 
U.S. Dollar Denominated
Securities of Foreign
Issuers               Each Underlying Portfolio, except the SLAT Prime
                      Obligation, SIMT Small Cap Growth, and SIMT Core Fixed
                      Income Portfolios, may invest in U.S. dollar denominated
                      securities of foreign issuers, including American
                      Depositary Receipts that are traded on registered
                      exchanges or listed on NASDAQ.
 
Warrants              Consistent with any applicable state law limitations, each
                      Underlying Portfolio, except the SLAT Prime Obligation
                      Portfolio, may purchase warrants in order to increase
                      total return.
 
When-Issued and Delayed
Delivery Securities   The Underlying Portfolios may purchase securities on a
                      when-issued or delayed-delivery basis.
 
                             For additional information regarding the permitted
                      investments of the Underlying Portfolios see the
                      "Description of Permitted Investments and Risk Factors of
                      the Underlying Portfolios" in this Prospectus, the Trust's
                      Statement of Additional Information, the "Description of
                      Permitted Investments and Risk Factors" in the Underlying
                      Portfolios' Prospectuses and the "Description of Permitted
                      Investments" in the Underlying Portfolios' Statements of
                      Additional Information.
 
                                       23
<PAGE>   27
 
RISK FACTORS OF
THE UNDERLYING
PORTFOLIOS
                      From time to time, the Underlying Portfolios may
                      experience relatively large purchases or redemptions due
                      to asset allocation decisions made by the Adviser for its
                      clients, including the Trust. These transactions may have
                      a material effect on the Underlying Portfolios, since
                      Underlying Portfolios that experience redemptions as a
                      result of reallocations may have to sell portfolio
                      securities and because Underlying Portfolios that receive
                      additional cash will have to invest it. While it is
                      impossible to predict the overall impact of these
                      transactions over time, there could be adverse effects on
                      portfolio management to the extent that Underlying
                      Portfolios may be required to sell securities at times
                      when they would not otherwise do so, or receive cash that
                      cannot be invested in an expeditious manner. There may be
                      tax consequences associated with purchases and sales of
                      securities, and such sales may also increase transaction
                      costs. The Adviser is committed to minimizing the impact
                      of these transactions on the Underlying Portfolios to the
                      extent it is consistent with pursuing the investment
                      objectives of its asset allocation clients. The Adviser
                      will monitor the impact of asset allocation decisions on
                      the Underlying Portfolios and, where practicable, a Fund
                      will, at any one time, only redeem shares of an Underlying
                      Portfolio to reduce its allocation to that particular
                      Portfolio in increments of up to 5% (e.g., from 20% to
                      15%), except where such redemptions are to meet Fund
                      shareholder redemption requests. The Adviser will
                      nevertheless face conflicts in fulfilling its
                      responsibilities because of the possible differences
                      between the interests of its asset allocation clients
                      (including shareholders of the Funds) and the interests of
                      the Underlying Portfolios.
 
FUNDAMENTAL
LIMITATIONS OF
THE UNDERLYING
PORTFOLIOS
                      Each Underlying Portfolio, except the SIT International
                      Fixed Income Fund, may not invest more than 5% of its
                      assets in the securities of a single issuer. (This
                      limitation applies to 75% of the assets of the SIMT and
                      the other SIT Portfolios, and does not apply to securities
                      issued by the U.S. Government, its agencies or
                      instrumentalities.)
                             Each Underlying Portfolio may not purchase
                      securities which would cause more than 25% of such
                      Portfolio's assets to be invested in the securities of
                      issuers conducting business in the same industry. (This
                      limitation does not apply to investments in securities
                      issued by the U.S. Government, its agencies or
 
                                       24
<PAGE>   28
 
                      instrumentalities and, with respect to the SLAT Prime
                      Obligation Portfolio, obligations of domestic banks.)
                             The foregoing percentage limitations will apply at
                      the time of the purchase of the security by an Underlying
                      Portfolio. Additional fundamental and non-fundamental
                      investment limitations are set forth in the Underlying
                      Portfolios' Prospectuses and Statements of Additional
                      Information.
 
THE ADVISER AND
MANAGER OF
THE FUNDS
                      Under an Investment Advisory Agreement with the Trust, SEI
                      Financial Management Corporation ("SFM" or the "Adviser")
                      acts as the investment adviser to each Fund. Under the
                      Agreement, the Adviser provides its proprietary asset
                      allocation services to the Funds, and exercises investment
                      discretion over the assets of the Funds. The Adviser
                      monitors the allocation of each Fund's assets, and is
                      responsible for supervising compliance with each Fund's
                      fundamental investment objective and policies. Although it
                      is expected that each Fund will typically be fully
                      invested in the Underlying Portfolios, the Adviser may,
                      from time to time, direct the investment of each Fund's
                      cash balances in money market securities or in other
                      instruments, including stock or bond index futures and
                      options thereon.
                             For its investment advisory services to the Trust,
                      the Adviser is entitled to a fee, which is calculated
                      daily and paid monthly, at an annual rate of .10% of each
                      Fund's average daily net assets. The Adviser has
                      voluntarily agreed to waive this fee for the foreseeable
                      future. This waiver may be terminated by the Adviser at
                      any time in its sole discretion.
                             The Adviser is a wholly-owned subsidiary of SEI
                      Corporation ("SEI"), a financial services company located
                      in Wayne, Pennsylvania. The principal business address of
                      the Adviser is 680 East Swedesford Road, Wayne,
                      Pennsylvania 19087-1658. SEI was founded in 1968, and is a
                      leading provider of investment solutions to banks,
                      institutional investors, investment advisers and insurance
                      companies. Affiliates of the Adviser have provided
                      consulting advice to institutional investors for more than
                      20 years, including advice regarding the selection and
                      evaluation of investment advisers and advice regarding
                      asset allocation strategies. The Adviser currently serves
                      as manager or administrator to more than 39 investment
                      companies including more than 290 portfolios, which
                      investment companies had more than $66 billion in assets
                      as of August 31, 1996.
                             Investment and asset allocation decisions for the
                      Funds are made by a committee within SFM.
                             SEI Fund Management ("SEI Management") provides the
                      Trust with overall management services, regulatory
                      reporting, all necessary office space, equipment,
 
                                       25
<PAGE>   29
 
                      personnel, and facilities, and acts as dividend disbursing
                      agent and shareholder servicing agent.
                             For its management services, SEI Management is
                      entitled to a fee, which is calculated daily and paid
                      monthly, at an annual rate of .20% of the average daily
                      net assets of each Fund. SEI Management has agreed to
                      waive its administration fee for the foreseeable future.
                      This waiver is voluntary and may be discontinued at any
                      time in SEI Management's sole discretion.
 
THE ADVISERS
AND SUB-ADVISERS
TO THE UNDERLYING
PORTFOLIOS
 
                      The following table sets forth information about the
                      advisers and sub-advisers to the Underlying Portfolios
                      approved by the Boards of Trustees of the Underlying
                      Trusts as of September 30, 1996:
 
<TABLE>
<CAPTION>
                                UNDERLYING PORTFOLIO        INVESTMENT ADVISOR             SUB-ADVISER(S)
                           ---------------------------------------------------------------------------------------
                           <S>                              <C>                  <C>
                           SIMT Large Cap Growth             SFM                 Alliance Capital Management, L.P.
                                                                                 IDS Advisory Group Inc.
                                                                                 Provident Investment Counsel, Inc.
                           ---------------------------------------------------------------------------------------
                           SIMT Large Cap Value              SFM                 LSV Asset Management
                                                                                 Mellon Equity Associates
                                                                                 Pacific Alliance Capital
                                                                                   Management
                           ---------------------------------------------------------------------------------------
                           SIMT Small Cap Growth             SFM                 Apodaca-Johnston Capital
                                                                                   Management
                                                                                 First of America Investment
                                                                                   Corporation
                                                                                 Nicholas-Applegate Capital
                                                                                   Management
                                                                                 Wall Street Associates
                           ---------------------------------------------------------------------------------------
                           SIMT Small Cap Value              SFM                 Boston Partners Asset Management,
                                                                                   L.P.
                                                                                 1838 Investment Advisors, L.P.
                           ---------------------------------------------------------------------------------------
                           SIT International Equity          SFM                 Acadian Asset Management, Inc.
                                                                                 Farrell Wako Global Investment
                                                                                   Management, Inc.
                                                                                 Morgan Grenfell Investment
                                                                                   Services, Ltd.
                                                                                 Seligman Henderson, Co.
                                                                                 Yamaichi Capital Management, Inc.
                                                                                   and Yamaichi Capital Management
                                                                                   (Singapore) Limited
                           ---------------------------------------------------------------------------------------
</TABLE>
 
                                       26
<PAGE>   30
 
<TABLE>
<CAPTION>
                                UNDERLYING PORTFOLIO        INVESTMENT ADVISOR             SUB-ADVISER(S)
                           <S>                              <C>                  <C>
                           ---------------------------------------------------------------------------------------
                           SIT Emerging Markets Equity       SFM                 Montgomery Asset Management, L.P.
                           ---------------------------------------------------------------------------------------
                           SIMT Core Fixed Income            SFM                 BlackRock Financial Management,
                                                                                   Inc.
                                                                                 Firstar Investment Research &
                                                                                   Management Company
                                                                                 Western Asset Management Company
                           ---------------------------------------------------------------------------------------
                           SIMT High Yield Bond              SFM                 BEA Associates
                           ---------------------------------------------------------------------------------------
                           SIT International Fixed Income    Strategic Fixed     None
                                                             Income, L.P.
                           ---------------------------------------------------------------------------------------
                           SLAT Prime Obligation             Wellington          None
                                                             Management
                                                             Company
                           ---------------------------------------------------------------------------------------
</TABLE>
 
SEI FINANCIAL
MANAGEMENT
CORPORATION           In addition to serving as the Trust's Adviser, SFM serves
                      as investment adviser to each Underlying Portfolio except
                      the SIT International Fixed Income and SLAT Prime
                      Obligation Portfolios.
                             Under the advisory agreement with each Underlying
                      Portfolio for which it serves as investment adviser (an
                      "Underlying SEI Portfolio"), SFM is authorized to make
                      investment decisions for the assets of the Underlying SEI
                      Portfolio, and to continuously review, supervise and
                      administer the Underlying SEI Portfolio's investment
                      program.
                             SFM acts as a "manager of managers" for the
                      Underlying SEI Portfolios. As Adviser, SFM oversees the
                      investment advisory services provided to the Underlying
                      SEI Portfolios and manages the cash portion of the
                      Portfolios' assets. Pursuant to separate sub-advisory
                      agreements with SFM, and under the supervision of both the
                      Adviser and the Boards of Trustees of the Underlying SEI
                      Portfolios, the sub-advisers are responsible for the
                      day-to-day investment management of all or a discrete
                      portion of the assets of the Underlying SEI Portfolios.
                      The sub-advisers are selected based primarily upon the
                      research and recommendations of SFM, which evaluates
                      quantitatively and qualitatively each such sub-adviser's
                      skills and investment results in managing assets for
                      specific asset classes, investment styles and strategies.
                      Subject to Board review, SFM allocates and, when
                      appropriate, reallocates the Underlying SEI Portfolios'
                      assets among sub-advisers, monitors and evaluates
                      sub-adviser performance, and oversees sub-adviser
                      compliance with the Portfolios' investment objectives,
                      policies and restrictions. SFM HAS THE ULTIMATE
                      RESPONSIBILITY FOR THE INVESTMENT PERFORMANCE OF THE
                      UNDERLYING SEI PORTFOLIOS DUE TO ITS RESPONSIBILITY TO
                      OVERSEE SUB-ADVISERS AND RECOMMEND THEIR HIRING,
                      TERMINATION AND REPLACEMENT.
 
                                       27
<PAGE>   31
 
                             SFM has obtained an exemptive order from the
                      Securities and Exchange Commission (the "SEC") that
                      permits SFM, with the approval of the Underlying SEI
                      Portfolios' Boards for Trustees, to retain sub-advisers
                      unaffiliated with SFM for the Portfolios without
                      submitting the sub-advisory agreements to a vote of the
                      Portfolios' shareholders. The exemptive relief permits the
                      disclosure of only the aggregate amount payable by SFM
                      under all such sub-advisory agreements. The Underlying SEI
                      Portfolios will notify shareholders in the event of any
                      addition or change in the identity of its sub-advisers.
                             For its advisory services to the Underlying
                      Portfolios, SFM is entitled to a fee, which is calculated
                      daily and paid monthly, at an annual rate of .40% of the
                      average daily net assets of the SIMT Large Cap Growth
                      Portfolio, .35% of the average daily net assets of the
                      SIMT Large Cap Value Portfolio, .65% of the average daily
                      net assets of the SIMT Small Cap Growth and Small Cap
                      Value Portfolios, .505% of the average daily net assets of
                      the SIT International Equity Portfolio, 1.05% of the
                      average daily net assets of the SIT Emerging Markets
                      Equity Portfolio, .275% of the average daily net assets of
                      the SIMT Core Fixed Income Portfolio, and .4875% of the
                      average daily net assets of the SIMT High Yield Bond
                      Portfolio.
 
STRATEGIC FIXED
INCOME L.P.           Strategic Fixed Income L.P. ("SFI") acts as the investment
                      adviser to the SIT International Fixed Income Portfolio.
                      SFI is a limited partnership formed in 1991 under the laws
                      of the State of Delaware to manage multi-currency fixed
                      income portfolios. The general partner of the firm is
                      Kenneth Windheim and the limited partner is Strategic
                      Investment Partners ("SIP"). As of March 1, 1996, SFI
                      managed $5.4 billion of client assets. Together, SFI and
                      SIP managed over $10.2 billion in client assets as of that
                      date. The principal address of SFI is 1001 Nineteenth
                      Street North, 16th Floor, Arlington, Virginia 22209.
                             SFI is entitled to a fee, which is calculated and
                      paid monthly, at an annual rate of .30% of the average
                      daily net assets of the SIT International Fixed Income
                      Portfolio. SFI has voluntarily agreed to waive all or a
                      portion of its fee in order to limit the total operating
                      expenses of the Portfolio. SFI reserves the right to
                      terminate its voluntary waiver at any time in its sole
                      discretion.
 
WELLINGTON
MANAGEMENT
COMPANY               Wellington Management Company ("WMC"), 75 State Street,
                      Boston, Massachusetts 02109, serves as the investment
                      adviser to the SLAT Prime Obligation Portfolio.
                             As of March 1, 1996, WMC had investment management
                      authority with respect to approximately $109 billion of
                      assets. WMC is a professional investment counseling firm
                      which provides investment services to investment
                      companies, employee benefit plans, endowments,
                      foundations, and other institutions and individuals. WMC's
                      predecessor organizations have provided investment
                      advisory services to investment companies since 1933, and
                      to investment counseling clients since 1960. WMC is a
                      Massachusetts general partnership of which the following
 
                                       28
<PAGE>   32
 
                      persons are managing partners: Robert W. Doran, Duncan M.
                      McFarland and John R. Ryan.

                             WMC is entitled to a fee, which is calculated daily
                      and paid monthly, at an annual rate of .075% of the
                      combined average daily net assets of the various
                      portfolios of SLAT up to $500 million, and .02% of such
                      average daily net assets in excess of $500 million. Such
                      fees are allocated daily among the various portfolios of
                      SLAT on the basis of their relative net assets.
 
ACADIAN ASSET
MANAGEMENT, INC.      Acadian Asset Management, Inc. ("Acadian") acts as an
                      investment sub-adviser to the SIT International Equity
                      Portfolio pursuant to a sub-advisory agreement with the
                      Adviser. In accordance with the Portfolio's investment
                      objectives and policies and under the supervision of the
                      Adviser and the Underlying Trust's Board of Trustees,
                      Acadian is responsible for the day-to-day investment
                      management of the portion of the Portfolio assigned to it
                      by the Board of Trustees and, with respect thereto, places
                      orders on behalf of the Portfolio to effect the investment
                      decisions made.
                             Acadian, a wholly-owned subsidiary of United Asset
                      Management Corporation, was founded in 1977, and manages
                      approximately $3 billion in assets invested globally.
                      Acadian's business address is Two International Place,
                      Boston, Massachusetts 02110.
                             The Adviser pays Acadian a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIT International Equity Portfolio assigned
                      to Acadian.
 
ALLIANCE CAPITAL
MANAGEMENT L.P.       Alliance Capital Management L.P. ("Alliance Capital")
                      serves as investment sub-adviser to a portion of the
                      assets of the SIMT Large Cap Growth Portfolio. Alliance is
                      a registered investment adviser organized as a Delaware
                      limited partnership which originated as Alliance Capital
                      Management Corporation in 1971. Alliance Capital
                      Management Corporation, an indirect wholly-owned
                      subsidiary of The Equitable Life Assurance Society of the
                      United States, is the general partner of Alliance . As of
                      March 1, 1996, Alliance managed over $149 billion in
                      assets. The principal business address of Alliance is 1345
                      Avenue of the Americas, New York, New York 10105.
                             The Adviser pays Alliance a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIMT Large Cap Growth Portfolio managed by
                      Alliance.
 
APODACA-JOHNSTON
CAPITAL
MANAGEMENT            Apodaca-Johnston Capital Management ("Apodaca") serves as
                      an investment sub-adviser to a portion of the assets of
                      the SIMT Small Cap Growth Portfolio. Apodaca is a
                      California corporation with its principal address at 50
                      California Street, Suite 3315, San Francisco, California
                      94014. Apodaca is owned equally by Scott Johnson, Jerry C.
                      Apodaca, Jr., and Jerry Apodaca, Sr. Apodaca's predecessor
                      was founded in 1985, and as of September 30, 1995, Apodaca
                      had approximately $290 million in assets under management.
                      Apodaca's clients include pension and profit sharing
                      plans, an endowment fund and an investment company
                      portfolio.
 
                                       29
<PAGE>   33
 
                             The Adviser pays Apodaca a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIMT Small Cap Growth Portfolio managed by
                      Apodaca.
 
BEA ASSOCIATES        BEA Associates ("BEA") serves as investment sub-adviser to
                      the SIMT High Yield Bond Portfolio. BEA is a general
                      partnership organized under the laws of the State of New
                      York and, together with its predecessor firms, has been
                      engaged in the investment advisory business for over 50
                      years. BEA's principal offices are located at One Citicorp
                      Center, 153 East 53rd Street, New York, New York 10022.
                      Credit Suisse Capital Corporation ("CS Capital") is an 80%
                      partner in BEA and CS Advisers Corp., a New York
                      corporation which is a wholly-owned subsidiary of CS
                      Capital, is a 20% partner in BEA. CS Capital is a
                      wholly-owned subsidiary of Credit Suisse Investment
                      Corporation, which is a wholly-owned subsidiary of Credit
                      Suisse, the second largest Swiss bank, which, in turn, is
                      a subsidiary of CS Holding, a Swiss corporation. BEA is
                      registered as an investment adviser under the Investment
                      Advisers Act of 1940.
                             BEA is a diversified asset manager, handling global
                      equity, balanced, fixed income and derivative securities
                      accounts for private individuals, as well as corporate
                      pension and profit-sharing plans, state pension funds,
                      union funds, endowments and other charitable institutions.
                      As of March 1, 1996, BEA managed approximately $28 billion
                      in assets.
                             The Adviser pays BEA a fee based on a percentage of
                      the average monthly market value of the assets of the SIMT
                      High Yield Bond Portfolio managed by BEA.
 
BLACKROCK FINANCIAL
MANAGEMENT, INC.      BlackRock Financial Management, Inc. ("BlackRock") serves
                      as an investment sub-adviser to a portion of the assets of
                      the SIMT Core Fixed Income Portfolio. BlackRock, a
                      registered investment adviser, is a Delaware corporation
                      with its principal business address at 345 Park Avenue,
                      30th Floor, New York, New York 10154. BlackRock's
                      predecessor was founded in 1988, and as of March 1, 1996,
                      BlackRock had $36.5 billion in assets under management.
                      BlackRock is wholly-owned by PNC Asset Management Group,
                      Inc., a wholly-owned subsidiary of PNC Bank, N.A. PNC
                      Bank, N.A.'s ultimate parent is PNC Bank Corp., One PNC
                      Plaza, Pittsburgh, Pennsylvania 15265, a bank holding
                      company. BlackRock provides investment advice to
                      investment companies, trusts, charitable organizations,
                      pension and profit sharing plans and government entities.
                             The Adviser pays BlackRock a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIMT Core Fixed Income Portfolio managed by
                      BlackRock.
 
BOSTON PARTNERS
ASSET MANAGEMENT,
L.P.                  Boston Partners Asset Management, L.P. ("BPAM") serves as
                      investment sub-adviser to a portion of the assets of the
                      SIMT Small Cap Value Portfolio. BPAM, a Delaware limited
                      partnership, is a registered investment adviser with its
                      principal business
 
                                       30
<PAGE>   34
 
                      address at One Financial Center, 43rd Floor, Boston,
                      Massachusetts 02111. BPAM's general partner, Boston
                      Partners, Inc., One Financial Center, 43rd Floor, Boston,
                      Massachusetts 02111, whose sole shareholder is Desmond J.
                      Heathwood, Chief Investment Officer of BPAM, owns
                      approximately 20% of BPAM's partnership interests. BPAM
                      was founded in April, 1995, and as of December 31, 1995,
                      it had approximately $5.5 billion in assets under
                      management. BPAM's clients include corporations,
                      endowments, foundations, pension and profit sharing plans
                      and two other investment companies.
                             The Adviser pays BPAM a fee based on a percentage
                      of the average monthly market value of the assets of the
                      SIMT Small Cap Value Portfolio managed by BPAM.
 
1838 INVESTMENT
ADVISORS, L.P.        1838 Investment Advisors, L.P. ("1838") serves as
                      investment sub-adviser to a portion of the assets of the
                      SIMT Small Cap Value Portfolio. 1838 is a Delaware limited
                      partnership located at 100 Matsonford Road, Radnor,
                      Pennsylvania. As of March 1, 1996, 1838 managed $4.7
                      billion in assets in large and small capitalization
                      equity, fixed income and balanced account portfolios.
                      Clients include corporate employee benefit plans,
                      municipalities, endowments, foundations, jointly trusteed
                      plans, insurance companies and wealthy individuals.
                             The Adviser pays 1838 a fee based on a percentage
                      of the average monthly market value of the assets of the
                      SIMT Small Cap Value Portfolio managed by 1838.
 
FARRELL WAKO
GLOBAL INVESTMENT
MANAGEMENT, INC.      Farrell Wako Global Investment Management, Inc. ("Farrell
                      Wako") acts as sub-adviser to a portion of the SIT
                      International Equity Portfolio. Farrell Wako, a Delaware
                      corporation and a wholly-owned subsidiary of Wako
                      Securities, was founded in 1991 and is a registered
                      investment advisor in the U.S. and Japan. Farrell Wako
                      currently manages over $200 million. The principal address
                      of Farrell Wako is 780 Third Avenue, New York, New York
                      10017.
                             The Advisor pays Farrell Wako a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIT International Equity Portfolio managed
                      by Farrell Wako.
 
FIRST OF AMERICA
INVESTMENT
CORPORATION           First of America Investment Corporation ("First America")
                      acts as sub-adviser to a portion of the SIMT Small Cap
                      Growth Portfolio. First of America is a Michigan
                      Corporation that is a wholly-owned subsidiary of First of
                      America Bank -- Michigan, N.A., a national banking
                      association, which is in turn a wholly-owned subsidiary of
                      First of America Bank Corporation, a registered bank
                      holding company. First of America is registered as an
                      investment adviser under the Investment Advisers Act of
                      1940. First of America, together with its predecessor, has
                      been engaged in the investment advisory business since
                      1932. First America's principal business address is 303
                      North Rose Street, Suite 500, Kalamazoo, Michigan 49007.
 
                                       31
<PAGE>   35
 
                             As of March 31, 1996, First of America had
                      approximately $13.7 billion in assets under management.
                      First of America's clients include mutual funds, trust
                      funds, and individually managed institutional and
                      individual accounts.
                             The Adviser pays First of America a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIMT Small Cap Growth Portfolio assigned to
                      First of America.
 
FIRSTAR INVESTMENT
RESEARCH &
MANAGEMENT
COMPANY               Firstar Investment Research & Management Company
                      ("FIRMCO") serves as an investment sub-adviser to a
                      portion of the assets of the SIMT Core Fixed Income
                      Portfolio. FIRMCO is a registered investment adviser with
                      its principal business address at 777 East Wisconsin
                      Avenue, Suite 800, Milwaukee, Wisconsin 53202. FIRMCO was
                      founded in 1986, and as of December 31, 1995, it had
                      approximately $15.6 billion in assets under management.
                      FIRMCO is a wholly-owned subsidiary of Firstar
                      Corporation, a bank holding company located at 777 East
                      Wisconsin Avenue, Milwaukee, Wisconsin 53202. FIRMCO's
                      clients include pension and profit sharing plans, trusts
                      and estates and one other investment company.
                             The Adviser pays FIRMCO a fee based on a percentage
                      of the average monthly market value of the assets of the
                      SIMT Core Fixed Income Portfolio managed by FIRMCO.
 
IDS ADVISORY
GROUP INC.            IDS Advisory Group Inc. ("IDS") serves as investment
                      sub-adviser to a portion of the assets of the SIMT Large
                      Cap Growth Portfolio. IDS is a registered investment
                      adviser and wholly-owned subsidiary of American Express
                      Financial Corporation. As of March 1, 1996, IDS managed
                      over $24 billion in assets, with $5 billion of this total
                      in large capitalization growth domestic equities. IDS was
                      founded in 1972 to manage tax-exempt assets for
                      institutional clients. The principal business address of
                      IDS is IDS Tower 10, Minneapolis, Minnesota 55440.
                             The Adviser pays IDS a fee based on a annual
                      percentage of the average monthly market value of the
                      assets of the SIMT Large Cap Growth Portfolio managed by
                      IDS.
 
LSV ASSET
MANAGEMENT            LSV Asset Management ("LSV") serves as investment
                      sub-adviser to a portion of the assets of the SIMT Large
                      Cap Value Portfolio. LSV is a registered investment
                      adviser organized as a Delaware general partnership. An
                      affiliate of the Adviser owns a majority interest of LSV.
                      The principal business address of LSV is 181 W. Madison
                      Avenue, Chicago, Illinois 60602.
                             LSV makes investment decisions based on a
                      quantitative computer model and, based on its ongoing
                      research and statistical analysis, make adjustments to the
                      model. Securities are identified for purchase or sale by
                      the Portfolio based upon the computer model and defined
                      variance tolerances. Purchases and sales are effected by
                      LSV based upon the output from the model.
                             The Adviser pays LSV a fee based on a percentage of
                      the average monthly market value of the assets of the SIMT
                      Large Cap Value Portfolio managed by LSV.
 
                                       32
<PAGE>   36
 
MELLON EQUITY
ASSOCIATES            Mellon Equity Associates ("Mellon Equity") serves as
                      investment sub-adviser to a portion of the assets of the
                      SIMT Large Cap Value Portfolio. Mellon Equity is a
                      Pennsylvania business trust founded in 1987, whose
                      beneficial owners are Mellon Bank, N.A. and MMIP, Inc.
                      Mellon Equity is a professional investment counseling firm
                      that provides investment management services to the equity
                      and balanced pension, public fund and profit-sharing
                      investment management markets, and is a registered
                      investment adviser under the Investment Advisers Act of
                      1940. Mellon Equity had discretionary management authority
                      with respect to approximately $8.8 billion of assets as of
                      December 31, 1995. Mellon Equity's predecessor
                      organization had managed domestic equity tax-exempt
                      institutional accounts since 1947. The business address
                      for Mellon Equity is 500 Grant Street, Suite 3700,
                      Pittsburgh, Pennsylvania 15258.
                             The Adviser pays Mellon Equity a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIMT Large Cap Value Portfolio managed by
                      Mellon Equity.
 
MONTGOMERY ASSET
MANAGEMENT L.P.       Montgomery Asset Management, L.P. ("MAM") acts as the
                      investment sub-adviser to the SIT Emerging Markets Equity
                      Portfolio. In accordance with the Portfolio's investment
                      objective and policies and under the supervision of the
                      Adviser and the Underlying Trust's Board of Trustees, MAM
                      is responsible for the day-to-day investment management of
                      the Portfolio and places orders on behalf of the Portfolio
                      to effect the investment decisions made.
                             MAM is an affiliate of Montgomery Securities, a San
                      Francisco-based investment banking firm. As of February
                      29, 1996, MAM had approximately $7.1 billion in assets
                      under management. MAM has over four years experience
                      providing investment management services. The principal
                      address of MAM is 600 Montgomery Street, San Francisco,
                      California 94111.
                             The Adviser pays MAM a fee based on a percentage of
                      the average monthly market value of the assets of the SIT
                      International Equity Portfolio assigned to MAM.
 
MORGAN GRENFELL
INVESTMENT SERVICES
LIMITED               Morgan Grenfell Investment Services Limited ("MG") acts as
                      the investment sub-adviser to the SIT International Equity
                      Portfolio. MG, a subsidiary of Morgan Grenfell Asset
                      Management Limited, managed over $12 billion in assets as
                      of December 31, 1995. Morgan Grenfell Asset Management
                      Limited, a wholly-owned subsidiary of Deutsche Bank, A.G.,
                      a German financial services conglomerate, managed over $94
                      billion in assets as of December 31, 1995. MG has over 11
                      years experience in managing international portfolios for
                      North American clients. MG attempts to exploit perceived
                      inefficiencies present in the European markets with
                      original research and an emphasis on stock selection. The
                      principal address of MG is 20 Finsbury Circus, London,
                      England, EC2M 1NB.
 
                                       33
<PAGE>   37
 
                             The Adviser pays MG a fee based on a percentage of
                      the average monthly market value of the assets of the SIT
                      International Equity Portfolio assigned to MG.
 
NICHOLAS-APPLEGATE
CAPITAL
MANAGEMENT            Nicholas-Applegate Capital Management
                      ("Nicholas-Applegate") serves as investment sub-adviser to
                      a portion of the assets of the SIMT Small Cap Growth
                      Portfolio. Nicholas-Applegate has operated as an
                      investment adviser which provides investment services to
                      employee benefit plans, endowments, foundations, other
                      institutions and investment companies since 1984. As of
                      December 31, 1995, Nicholas-Applegate had discretionary
                      management authority with respect to approximately $29
                      billion of assets. The principal business address of
                      Nicholas-Applegate is 600 West Broadway, 29th Floor, San
                      Diego, California 92101. Nicholas-Applegate, pursuant to a
                      partnership agreement, is controlled by its general
                      partner Nicholas-Applegate Capital Management Holdings,
                      L.P., a limited partnership controlled by Arthur E.
                      Nicholas.
                             The Adviser pays Nicholas-Applegate a fee based on
                      a percentage of the average monthly market value of the
                      assets of the SIMT Small Cap Growth Portfolio managed by
                      Nicholas-Applegate.
 
PACIFIC ALLIANCE
CAPITAL
MANAGEMENT            Pacific Alliance Capital Management ("Pacific") serves as
                      investment sub-adviser to a portion of the assets of the
                      SIMT Large Cap Value Portfolio. Pacific is a division of
                      Union Bank of California, N.A., and provides equity and
                      fixed-income management services to a broad array of
                      corporate and municipal clients. Union Bank of California,
                      N.A. is a wholly-owned subsidiary of The Bank of
                      Tokyo-Mitsubishi Limited. As of December 31, 1995, Pacific
                      had discretionary management authority with respect to
                      approximately $11.9 billion of assets. The principal
                      business address of Pacific is 475 Sansome Street, San
                      Francisco, California 94111.
                             The Adviser pays Pacific a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIMT Large Cap Value Portfolio managed by
                      Pacific.
 
PROVIDENT
INVESTMENT
COUNSEL, INC.         Provident Investment Counsel, Inc. ("Provident"), is a
                      registered investment adviser with its principal business
                      address at 300 North Lake Avenue, Pasadena, California
                      91101. Provident, which, through its predecessors, has
                      been in business since 1951, and is a wholly-owned
                      subsidiary of UAM. Provident provides investment advice to
                      corporations, public entities, foundations and labor
                      unions, as well as to other investment companies. As of
                      December 31, 1995, Provident had over $16 billion in
                      client assets under management.
                             The Adviser pays Provident a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIMT Large Cap Growth Portfolio managed by
                      Provident.
 
SELIGMAN
HENDERSON CO.         Seligman Henderson Co. ("Seligman") acts as sub-adviser to
                      a portion of the assets of the SIT International Equity
                      Portfolio. Seligman Henderson Co. is a New York general
                      partnership and is structured as an equal partnership
                      between J&W Seligman & Co. and Henderson International
                      Inc., a controlled affiliate of
 
                                       34
<PAGE>   38
 
                      Henderson Administration Group plc. Seligman Henderson Co.
                      was established in 1991 and manages over $3 billion in
                      global and international equity portfolios for U.S.
                      institutional and retail clients. The principal address of
                      Seligman is 100 Park Avenue, New York, New York 10017.
                             The Adviser pays Seligman a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIT International Equity Portfolio managed
                      by Seligman.
 
WALL STREET
ASSOCIATES            Wall Street Associates ("WSA") serves as investment
                      sub-adviser to a portion of the assets of the SIMT Small
                      Cap Growth Portfolio. WSA is organized as a corporation
                      with its principal business address at 1200 Prospect
                      Street, Suite 100, La Jolla, California 92037. WSA was
                      founded in 1987, and as of December 31, 1995, had
                      approximately $900 million in assets under management. WSA
                      is owned equally by William Jeffery III, Kenneth F.
                      McCain, and Richard S. Coons. WSA provides investment
                      advisory services for institutional clients, an investment
                      partnership for which it serves as general partner, a
                      group trust, for which it serves as sole investment
                      manager, and an offshore fund for foreign investors for
                      which it serves as the sole investment manager.
                             The Adviser pays WSA a fee based on a percentage of
                      the average monthly market value of the assets of the SIMT
                      Small Cap Growth Portfolio assigned to WSA.
 
WESTERN ASSET
MANAGEMENT
COMPANY               Western Asset Management Company ("Western") serves as an
                      investment sub-adviser to a portion of the assets of the
                      SIMT Core Fixed Income Portfolio. Western is located at
                      117 East Colorado Boulevard, Pasadena, California 91105,
                      and is a wholly owned subsidiary of Legg Mason, Inc., a
                      financial services company located in Baltimore, Maryland.
                      Western was founded in 1971, and specializes in the
                      management of fixed income portfolios. As of March 1,
                      1996, Western managed approximately $19.7 billion in
                      client assets, including $2 billion of investment company
                      assets.
                             The Adviser pays Western a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIMT Core Fixed Income Portfolio managed by
                      Western.
 
YAMAICHI CAPITAL
MANAGEMENT, INC.
AND YAMAICHI
CAPITAL
MANAGEMENT
(SINGAPORE)
LIMITED               Yamaichi Capital Management, Inc. ("Yamaichi") and
                      Yamaichi Capital Management (Singapore) Limited ("YCMS")
                      jointly act as sub-adviser to a portion of the assets of
                      the SIT International Equity Portfolio. Yamaichi is a New
                      York Corporation established in 1981 and YCMS is a
                      Singapore corporation established in 1979, and each is a
                      wholly-owned subsidiary of Yamaichi International Capital
                      Management Co., Ltd ("YICM"). Yamaichi, YCMS and YICM are
                      controlled by Yamaichi Securities Co., Ltd., which is
                      located in Tokyo, Japan. YCMS and its affiliates manage
                      approximately $22 billion worldwide. The principal address
                      of Yamaichi is 2 World Trade Center, Suite 9828, New York,
                      New York 10048. The principal address of YCMS is 138
                      Robinson Road, #19-01, Hong Leong Centre, Singapore
                      068906.
 
                                       35
<PAGE>   39
 
                             The Adviser pays Yamaichi a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIT International Equity Portfolio managed
                      by Yamaichi.
                             Information regarding the portfolio managers
                      employed by the advisers and sub-advisers to the
                      Underlying Portfolios is set forth in the Trust's
                      Statement of Additional Information.
 
TRANSFER AGENT
 
                      The Trust and DST Systems, Inc. (the "Transfer Agent"),
                      1004 Baltimore Street, 2nd Floor, Kansas City, Missouri
                      64105, have entered into a transfer agent agreement with
                      respect to the Trust's Class D shares.
 
DISTRIBUTION
AND SHAREHOLDER
SERVICING
                      SEI Financial Services Company (the "Distributor"), a
                      wholly-owned subsidiary of SEI, serves as each Fund's
                      distributor pursuant to a distribution agreement (the
                      "Distribution Agreement") with the Trust. The Trustees of
                      the Trust have adopted a distribution plan for the Trust's
                      Class D shares (the "Class D Plan") pursuant to Rule 12b-1
                      under the 1940 Act.
                             The Class D Plan provides for payments to the
                      Distributor for distribution-related services at an annual
                      rate of .75% of each Fund's average daily net assets
                      attributable to Class D Shares. In addition, pursuant to a
                      Shareholder Service Plan and Agreement (the "Service
                      Plan"), each Fund is authorized to pay the Distributor a
                      fee in connection with the ongoing servicing of
                      shareholder accounts owning such Class D Shares, which is
                      calculated and payable monthly, at the annual rate of .25%
                      of the value of the average daily net assets attributable
                      to Class D Shares of the Fund.
                             The distribution-related payments under the Class D
                      Plan may be used by the Distributor to provide initial and
                      ongoing sales compensation to its investment executives
                      and to other broker-dealers and financial intermediaries
                      in respect of sales of Class D Shares, to compensate third
                      parties for the provision of distribution-related services
                      relating to Class D Shares, and to pay for advertising and
                      promotional expenses in connection with the distribution
                      of Class D Shares. These advertising and promotional
                      expenses may include: costs of printing and mailing
                      prospectuses, statements of additional information and
                      shareholder reports to prospective investors; preparation
                      and distribution of sales literature; advertising of any
                      type; an allocation of other expenses of the Distributor
                      related to the distribution of Class D Shares; and
                      payments to, and expenses of, officers, employees or
                      representatives of the Distributor, of other
                      broker-dealers, banks or
 
                                       36
<PAGE>   40
 
                      other financial institutions, and of any other persons who
                      provide support services in connection with the
                      distribution of Fund Shares.
                             The service fees payable to the Distributor under
                      the Service Plan are intended to compensate the
                      Distributor for the provision of shareholder services, and
                      may be used by the Distributor to provide compensation to
                      financial intermediaries for ongoing service and/or
                      maintenance of shareholder accounts with respect to Class
                      D Shares of the applicable Funds. Such shareholder
                      services may include: telephone service to shareholders;
                      acceptance and processing of written correspondence, new
                      account applications and subsequent purchases by check;
                      mailing of confirmations, statements and tax forms
                      directly to shareholders; maintenance of customer
                      accounts, and acceptance of payment for trades by check,
                      Federal Reserve wire or Automatic Clearing House payment.
                      The Distributor shall perform or supervise the performance
                      by others of other shareholder services in connection with
                      the operation of the Funds, as agreed from time to time.
                             Payments under the Class D Plan are not tied
                      exclusively to the expenses for distribution activities
                      actually incurred by the Distributor or third parties, so
                      that such payments may exceed expenses actually incurred
                      by the Distributor. Similarly, payments to the Distributor
                      under the Service Plan are not directly tied to
                      shareholder servicing expenses incurred. The Trust's Board
                      of Trustees will evaluate the appropriateness of the Class
                      D Plan and the Service Plan and their payment terms on a
                      continuing basis and, in doing so, will consider all
                      relevant factors, including expenses borne by the
                      Distributor and amounts it receives under the Class D Plan
                      and the Service Plan.
                             Periodically, the Distributor may waive a portion
                      of the fees payable to it under the Service Plan in order
                      to keep within certain limits imposed by the Trust's SEC
                      Order. Specifically, any Fund's shareholder servicing fees
                      will be reduced in an amount equal to the Fund's pro rata
                      portion of any shareholder servicing fees paid by any
                      Underlying Portfolio in which the Fund invests, but only
                      to the extent necessary to comply with the Trust's SEC
                      Order.
                             It is possible that an institution may offer
                      different categories of shares to its customers and thus
                      receive different compensation with respect to the
                      different categories. These financial institutions may
                      also charge separate fees to their customers.
                             The Distributor may, from time to time in its sole
                      discretion, institute one or more promotional incentive
                      programs, which will be paid for by the Distributor from
                      its own resources. Under any such program, the Distributor
                      will provide promotional incentives, in the form of cash
                      or other compensation, including merchandise, airline
                      vouchers, trips and vacation packages, to all dealers
                      selling shares of the Funds. Such promotional incentives
                      will be offered uniformly to all shares of the Funds and
                      also will be offered uniformly to all dealers, predicated
                      upon the amount of shares of the Funds sold by such
                      dealer.
 
                                       37
<PAGE>   41
 
PURCHASE AND
REDEMPTION OF
SHARES
 
                      Financial institutions may acquire Class D Shares of the
                      Funds for their own account or as record owner on behalf
                      of fiduciary, agency or custody accounts by placing orders
                      with the Transfer Agent. State securities laws may require
                      financial institutions purchasing shares for their
                      customers to register as dealers pursuant to state laws.
                      To allow for processing and transmittal of orders to the
                      Transfer Agent on the same day, financial institutions may
                      impose earlier cut-off times for receipt of purchase
                      orders directed through them. Certain financial
                      institutions may charge separate customer account fees.
                      Information concerning shareholder services and any
                      charges will be provided to the customer by the
                      Intermediary.
                             Class D shares are offered to tax-advantaged
                      retirement accounts. If you are investing in a Fund
                      through a 401(k) or other retirement plan, you should
                      contact your plan sponsor for the services and procedures
                      which pertain to your account.
                             Shares of each Fund may be purchased or redeemed on
                      days on which the New York Stock Exchange is open for
                      business (a "Business Day"). Shares of the Funds are
                      offered only to residents of states in which the shares
                      are eligible for purchase.
                             Shareholders who desire to purchase or redeem
                      shares for cash must place their orders with the Transfer
                      Agent prior to 4:00 p.m. Eastern time on any Business Day
                      for the order to be accepted on that Business Day.
                      Generally, cash investments must be transmitted or
                      delivered in federal funds to the wire agent by 12 noon on
                      the next Business Day following the day the order is
                      placed. The Trust reserves the right to reject a purchase
                      order when the Distributor determines that it is not in
                      the best interest of the Trust or its shareholders to
                      accept such order. In circumstances where a purchase order
                      is received and payment is made, but no instructions are
                      given as to which Fund should be purchased, the
                      Distributor may invest such payment in an affiliated money
                      market fund until the purchase instructions have been
                      clarified. Until the Transfer Agent receives purchase
                      instructions in good order, such purchase request will not
                      be accepted by the Trust.
                             Purchases will be made in full and fractional
                      shares of the Funds calculated to three decimal places.
                      The Trust will send shareholders of record a statement of
                      shares owned after each transaction. The purchase price of
                      shares is the net asset value next determined after the
                      receipt of the purchase order by the Transfer Agent.
                             The net asset value per share of each Fund is
                      determined by dividing the total market value of such
                      Fund's investments and other assets, less any liabilities,
                      by the total number of outstanding shares of that Fund.
                      The assets of each Fund consist primarily of shares of the
                      Underlying Portfolios, which are valued at their
 
                                       38
<PAGE>   42
 
                      respective net asset values. The Underlying Portfolios
                      value their portfolio securities at the last quoted sales
                      price for such securities, or, if there is no such
                      reported sales price on the valuation date, at the most
                      recent quoted bid price. An Underlying Portfolio may also
                      use a pricing service to obtain the last sale price of
                      each equity or fixed income security held in its
                      portfolio. Unlisted securities for which market quotations
                      are readily available are valued at the most recent quoted
                      bid price. Net asset value per share is determined daily
                      as of the close of business of the New York Stock Exchange
                      (currently, 4:00 p.m. Eastern time) on each Business Day.
                             The minimum initial investment in a Fund's Class D
                      shares is $25,000; however, the minimum investment may be
                      waived at the Distributor's discretion. All subsequent
                      purchases must be at least $100.
                             Shareholders who desire to redeem shares of the
                      Funds must place their redemption orders with Transfer
                      Agent prior to 4:00 p.m. Eastern time on any Business Day.
                      The redemption price is the net asset value per share of
                      the Fund next determined after receipt by the Transfer
                      Agent of the redemption order. Payment or redemption will
                      be made as promptly as possible and, in any event, within
                      seven days after the redemption order is received.
                             The Trust intends to generally make redemptions in
                      cash. The Trust may, however, make redemptions in whole or
                      in part by a distribution in kind of readily marketable
                      securities in lieu of cash. Shareholders may incur
                      brokerage costs on the sale of any such securities so
                      received in payment of redemptions.
                             Purchase and redemption orders may be placed by
                      telephone by calling 1-800-342-5734. Neither the Trust nor
                      the Transfer Agent will be responsible for any loss,
                      liability, cost or expense for acting upon wire
                      instructions or upon telephone instructions that it
                      reasonably believes to be genuine. The Trust and the
                      Trust's Transfer Agent will each employ reasonable
                      procedures to confirm that instructions communicated by
                      telephone are genuine, including requiring a form of
                      personal identification prior to acting upon instructions
                      received by telephone and recording telephone
                      instructions. If reasonable procedures are not employed,
                      the Trust and/or Trust's Transfer Agent may be liable for
                      any losses due to unauthorized or fraudulent telephone
                      transactions. If market conditions are extraordinarily
                      active, or other extraordinary circumstances exist, and
                      you experience difficulties placing redemption orders by
                      telephone, you may wish to consider placing your order by
                      other means.
                             You may redeem shares at any time. For an IRA or
                      other tax-deferred account, you must make your redemption
                      request in writing. You should be aware that any
                      distributions personally received by you from the account
                      prior to age 59 1/2 are generally subject to a 10% penalty
                      tax, as well as to ordinary income taxes. To avoid the 10%
                      penalty, you must generally roll over your distribution to
                      another tax-deferred account or tax-qualified retirement
                      plan (if permitted) within 60 days.
 
                                       39
<PAGE>   43
 
PERFORMANCE
 
                      From time to time, the Funds may advertise yield and total
                      return. These figures will be based on historical earnings
                      and are not intended to indicate future performance. The
                      yield of a Fund refers to the annualized income generated
                      by an investment in the Fund over a specified 30-day
                      period. The yield is calculated by assuming that the same
                      amount of income generated by the investment during that
                      period is generated in each 30-day period over one year
                      and is shown as a percentage of the investment.
                             The total return of a Fund refers to the average
                      compounded rate of return to a hypothetical investment for
                      designated time periods (including but not limited to, the
                      period from which the Fund commenced operations through
                      the specified date), assuming that the entire investment
                      is redeemed at the end of each period and assuming the
                      reinvestment of all dividend and capital gain
                      distributions. The total return of a Fund may also be
                      quoted as a dollar amount or on an aggregate basis or an
                      actual basis, without inclusion of any front-end or
                      contingent sales charges, or with a reduced sales charge
                      in advertisements distributed to investors entitled to a
                      reduced sales charge.
                             A Fund may periodically compare its performance to
                      that of: (i) other mutual funds tracked by mutual fund
                      rating services (such as Lipper Analytical), financial and
                      business publications and periodicals; (ii) broad groups
                      of comparable mutual funds; (iii) unmanaged indices which
                      may assume investment of dividends but generally do not
                      reflect deductions for administrative and management
                      costs; or (iv) other investment alternatives. The Fund may
                      quote Morningstar, Inc., a service that ranks mutual funds
                      on the basis of risk-adjusted performance, and Ibbotson
                      Associates of Chicago, Illinois, which provides historical
                      returns of the capital markets in the U.S. The Fund may
                      use long-term performance of these capital markets to
                      demonstrate general long-term risk versus reward scenarios
                      and could include the value of a hypothetical investment
                      in any of the capital markets. The Fund may also quote
                      financial and business publications and periodicals as
                      they relate to fund management, investment philosophy, and
                      investment techniques.
                             The Fund may quote various measures of volatility
                      and benchmark correlation in advertising and may compare
                      these measures to those of other funds. Measures of
                      volatility attempt to compare historical share price
                      fluctuations or total returns to a benchmark while
                      measures of benchmark correlation indicate how valid a
                      comparative benchmark might be. Measures of volatility and
                      correlation are calculated using averages of historical
                      data and cannot be calculated precisely.
                             For each Fund, the performance of Class A Shares
                      will normally be higher than the performance of the Class
                      D shares of that Fund because of the additional
                      distribution, shareholder servicing and transfer agent
                      expenses charged to Class D Shares.
 
                                       40
<PAGE>   44
 
TAXES
 
                      The following summary of federal income tax consequences
                      is based on current tax laws and regulations, which may be
                      changed by legislative, judicial, or administrative
                      action. No attempt has been made to present a detailed
                      explanation of the federal, state, or local tax treatment
                      of the Funds or their shareholders. In addition, state and
                      local tax consequences of an investment in a Fund may
                      differ from the federal income tax consequences described
                      below. Accordingly, shareholders are urged to consult
                      their tax advisers regarding specific questions as to
                      federal, state, and local taxes. Additional information
                      concerning taxes is set forth in the Statement of
                      Additional Information.
                             IRAs and participants in other tax-qualified
                      retirement plans generally will not be subject to federal
                      tax liability on either dividend and capital gain
                      distributions from the Funds or redemption of shares of
                      the Funds. Rather, participants in such plans will be
                      taxed when they begin taking distributions from their IRAs
                      and/or the plans. There are various restrictions under the
                      Code on eligibility, contributions and withdrawals,
                      depending on the type of tax-deferred account or
                      tax-qualified retirement plan. The rules governing
                      tax-deferred accounts and tax-qualified retirement plans
                      are complex, and failure to comply with the governing
                      rules and regulations may result in a substantial cost to
                      you, including the loss of tax advantages and the
                      imposition of additional taxes and penalties by the IRS.
                      You should consult with a tax professional on the specific
                      rules governing your own plan.
 
TAX STATUS OF THE
FUNDS                 Each Fund is treated as a separate entity for federal
                      income tax purposes and is not combined with the Trust's
                      other Funds. Each Fund intends to continue to qualify for
                      the special tax treatment afforded regulated investment
                      companies ("RICs") under Subchapter M of the Code, so as
                      to be relieved of federal income tax on net investment
                      income and net capital gain (the excess of net long-term
                      capital gain over net short-term capital loss) distributed
                      to shareholders.
 
TAX STATUS OF
DISTRIBUTIONS         Each Fund will distribute substantially all of its net
                      investment income (including net short-term capital gain)
                      and net capital gain to shareholders. Dividends from a
                      Fund's net investment income will be taxable to its
                      shareholders as ordinary income, whether received in cash
                      or in additional shares, to the extent of the Fund's
                      earnings and profits. Dividends from a Fund's net
                      investment income will qualify for the dividends received
                      deduction for corporate shareholders to the extent such
                      dividends are derived from dividends paid by Underlying
                      Portfolios that qualify for such deduction. Distributions
                      of net capital gain are taxable to shareholders as long-
                      term capital gain regardless of how long the shareholders
                      have held shares or whether the distributions are received
                      in cash or in additional shares. Each Fund will make
                      annual reports to shareholders of the federal income tax
                      status of all distributions. Each Fund intends to make
                      sufficient distributions to avoid liability for
 
                                       41
<PAGE>   45
 
                      the federal excise tax applicable to RICs. Dividends
                      declared by a Fund in October, November or December of any
                      year and payable to shareholders of record on a date in
                      such a month will be deemed to have been paid by the Fund
                      and received by the shareholders on December 31 of that
                      year if paid by the Fund at any time during the following
                      January.
                             Investment income received by the Funds from
                      sources within foreign countries may be subject to foreign
                      income taxes withheld at the source. The Funds will not be
                      able to treat shareholders as having paid their
                      proportionate share of such taxes for foreign tax credit
                      purposes.
                             Each sale or redemption of a Fund's shares is a
                      taxable transaction to the shareholder.
 
GENERAL
INFORMATION
 
The Trust             The Trust was organized as a Massachusetts business trust
                      under a Declaration of Trust dated November 20, 1995. The
                      Declaration of Trust permits the Trust to offer separate
                      portfolios of shares and different classes of each
                      portfolio. Shareholders may purchase shares in each Fund
                      through two separate classes of shares: Class A Shares and
                      Class D Shares, which provide for variations in
                      distribution, shareholder servicing and transfer agent
                      costs, voting rights and dividends. Additional information
                      pertaining to the Trust may be obtained by writing to SEI
                      Financial Management Corporation, 680 East Swedesford
                      Road, Wayne, Pennsylvania 19087-1658, or by calling
                      1-800-342-5734. All consideration received by the Trust
                      for shares of any Fund and all assets of such Fund belong
                      to that Fund and would be subject to liabilities related
                      thereto.
                             The Trust pays its expenses, including fees of its
                      service providers, audit and legal expenses, expenses of
                      preparing prospectuses, proxy solicitation materials and
                      reports to shareholders, costs of custodial services and
                      registering the shares under federal and state securities
                      laws, pricing, insurance expenses, including litigation
                      and other extraordinary expenses, brokerage costs,
                      interest charges, taxes and organization expenses.
 
Trustees of the Trust The management and affairs of the Trust are supervised by
                      the Trustees under the laws of the Commonwealth of
                      Massachusetts. The Trustees have approved contracts under
                      which, as described above, certain companies provide
                      essential management services to the Trust.
 
Voting Rights         Each share held entitles the shareholder of record to one
                      vote. Each portfolio of the Trust will vote separately on
                      matters relating solely to that portfolio. Each class will
                      vote separately on matters pertaining to its distribution
                      plan. Each Fund will vote its
 
                                       42
<PAGE>   46
 
                      Underlying Portfolio shares in proportion to the votes of
                      all other shareholders of each respective Underlying
                      Portfolio.
                             As a Massachusetts business trust, the Trust is not
                      required to hold annual meetings of shareholders, but
                      approval will be sought for certain changes in the
                      operation of the Trust and for the election of Trustees
                      under certain circumstances. In addition, a Trustee may be
                      removed by the remaining Trustees or by shareholders at a
                      special meeting called upon written request of
                      shareholders owning at least 10% of the outstanding shares
                      of the Trust. In the event that such a meeting is
                      requested, the Trust will provide appropriate assistance
                      and information to the shareholders requesting the
                      meeting.
 
Reporting             The Trust issues unaudited financial information
                      semi-annually and audited financial statements annually.
                      The Trust furnishes proxy statements and other reports to
                      shareholders of record.
 
Shareholder Inquiries Shareholder inquiries should be directed to DST Systems,
                      Inc., P.O. Box 419240, Kansas City, Missouri 64141-6240.
 
Dividends             Substantially all of the net investment income (exclusive
                      of capital gain) of each Fund is periodically declared and
                      paid as a dividend. Capital gains, if any, are distributed
                      at least annually.
                             Shareholders automatically receive all income
                      dividends and capital gain distributions in additional
                      shares at the net asset value next determined following
                      the record date, unless the shareholder has elected to
                      take such payment in cash. Shareholders may change their
                      election by providing written notice to the Adviser at
                      least 15 days prior to the distribution.
                             Dividends and capital gains of each Fund are paid
                      on a per-share basis. The value of each share will be
                      reduced by the amount of any such payment. If shares are
                      purchased shortly before the record date for dividend or
                      capital gain distributions, a shareholder will pay the
                      full price for the shares and receive some portion of the
                      price back as a taxable dividend or distribution.
 
Counsel and Independent
Accountants           Morgan, Lewis & Bockius LLP serves as counsel to the
                      Trust. Price Waterhouse LLP serves as the independent
                      accountants of the Trust.
 
Custodian and Wire Agent
                      SFM, which serves as transfer agent for the Underlying
                      Portfolios, also maintains custody of assets of each Fund
                      that consist of uncertificated shares of the Underlying
                      Portfolios. CoreStates Bank, N.A., Broad and Chestnut
                      Streets, P.O. Box 7618, Philadelphia, Pennsylvania 19101,
                      acts as Custodian for the non-mutual fund assets of each
                      Fund (the "Custodian"). The Custodian holds cash,
                      securities and other assets of the Trust as required by
                      the 1940 Act, and acts as wire agent of the Trust's
                      assets.
 
                                       43
<PAGE>   47
 
DESCRIPTION OF
PERMITTED
INVESTMENTS AND
RISK FACTORS OF
THE UNDERLYING
PORTFOLIOS
 
                      The following is a brief description of the permitted
                      investment practices for the Underlying Portfolios, and
                      the associated risk factors:
 
American Depositary
Receipts ("ADRs"),
Continental Depositary
Receipts ("CDRs"),
European Depositary
Receipts ("EDRs") and
Global Depositary
Receipts ("GDRs")     ADRs are securities, typically issued by a U.S. financial
                      institution (a "depositary"), that evidence ownership
                      interests in a security or a pool of securities issued by
                      a foreign issuer and deposited with the depositary. ADRs
                      include American Depositary Shares and New York Shares.
                      EDRs, which are sometimes referred to as Continental
                      Depositary Receipts ("CDRs"), are securities, typically
                      issued by a non-U.S. financial institution, that evidence
                      ownership interests in a security or a pool of securities
                      issued by either a U.S. or foreign issuer. GDRs are issued
                      globally and evidence similar ownership.
 
Asset-Backed Securities
                      Asset-backed securities are securities secured by
                      non-mortgage assets such as company receivables, truck and
                      auto loans, leases and credit card receivables. Such
                      securities are generally issued as pass-through
                      certificates, which represent undivided fractional
                      ownership interests in the underlying pools of assets.
                      Such securities also may be debt obligations and are
                      generally issued as the debt of a special purpose entity,
                      such as a trust, organized solely for the purpose of
                      owning such assets and issuing such debt.
 
Convertible
Securities            Convertible securities are corporate securities that are
                      exchangeable for a set number of another security at a
                      prestated price. Convertible securities typically have
                      characteristics similar to both fixed income and equity
                      securities. Because of the conversion feature, the market
                      value of a convertible security tends to move with the
                      market value of the underlying stock. The value of a
                      convertible security is also affected by prevailing
                      interest rates, the credit quality of the issuer, and any
                      call provisions.
 
Demand Instruments    Demand instruments are instruments which may involve a
                      conditional or unconditional demand feature which permits
                      the holder to demand payment of the principal amount of
                      the instrument. They may include variable amount master
                      demand notes.
 
Derivatives           Derivatives are securities that derive their value from
                      other securities, assets or indices. The following are
                      considered derivative securities: options on futures,
                      futures, options (e.g., puts and calls), swap agreements,
                      mortgage-backed securities and forward commitments,
                      floating and variable rate securities, convertible
 
                                       44
<PAGE>   48
 
                      securities, "stripped" U.S. Treasury securities (e.g.,
                      Receipts and STRIPs) and privately issued stripped
                      securities (e.g., TGRs, TRs and CATS).
 
Equity Securities     Equity securities represent ownership interests in a
                      company or corporation and consist of common stock,
                      preferred stock, warrants and rights to subscribe to
                      common stock and, in general, any security that is
                      convertible into or exchangeable for common stock.
                      Investments in common stocks are subject to market risks
                      which may cause their prices to fluctuate over time. The
                      value of convertible securities is also affected by
                      prevailing interest rates, the credit quality of the
                      issuer and any call provisions. Changes in the value of
                      fund securities will not necessarily affect cash income
                      derived from these securities, but will affect a
                      Portfolio's net asset value.
 
Fixed Income Securities
                      Fixed income securities are debt obligations issued by
                      corporations, municipalities and other borrowers. The
                      market value of fixed income investments will generally
                      change in response to interest rate changes and other
                      factors. During periods of falling interest rates, the
                      values of outstanding fixed income securities generally
                      rise. Conversely, during periods of rising interest rates,
                      the values of such securities generally decline.
                             The Portfolios may invest in securities rated in
                      the fourth highest category by an NRSRO; such securities,
                      while still investment grade, are considered to have
                      speculative characteristics. The SIMT High Yield Bond Fund
                      must invest at least 65%, and the SIT Emerging Markets
                      Equity Portfolio may invest, up to 5% of its net assets in
                      securities rated lower than investment grade. Bonds rated
                      below investment grade are often referred to as "junk
                      bonds." Such securities involve greater risk of default or
                      price declines than investment grade securities due to
                      changes in the issuer's creditworthiness and the outlook
                      for economic growth.
 
Forward Foreign
Currency Contracts    A forward contract involves an obligation to purchase or
                      sell a specific currency amount at a future date, agreed
                      upon by the parties, at a price set at the time of the
                      contract. A Portfolio may also enter into a contract to
                      sell, for a fixed amount of U.S. dollars or other
                      appropriate currency, the amount of foreign currency
                      approximating the value of some or all of the Portfolio's
                      securities denominated in such foreign currency.
 
Futures Contracts and
Options on Futures
Contracts             Futures contracts provide for the future sale by one party
                      and purchase by another party of a specified amount of a
                      specific security at a specified future time and at a
                      specified price. An option on a futures contract gives the
                      purchaser the right, in exchange for a premium, to assume
                      a position in a futures contract at a specified exercise
                      price during the term of the option. A Portfolio may use
                      futures contracts and related options for bona fide
                      hedging purposes, to offset changes in the value of
                      securities held or expected to be acquired or be disposed
                      of, to minimize fluctuations in foreign currencies, or to
                      gain exposure to a particular market or instrument. A
                      Portfolio will minimize the risk that it will be unable to
                      close out a
 
                                       45
<PAGE>   49
 
                      futures contract by only entering into futures contracts
                      which are traded on national futures exchanges. In
                      addition, a Portfolio will only sell covered futures
                      contracts and options on futures contracts.
                             Stock and bond index futures are futures contracts
                      for various stock and bond indices that are traded on
                      registered securities exchanges. Stock and bond index
                      futures contracts obligate the seller to deliver (and the
                      purchaser to take) an amount of cash equal to a specific
                      dollar amount times the difference between the value of a
                      specific stock or bond index at the close of the last
                      trading day of the contract and the price at which the
                      agreement is made.
                             Stock and bond index futures contracts are
                      bilateral agreements pursuant to which two parties agree
                      to take or make delivery of an amount of cash equal to a
                      specified dollar amount times the difference between the
                      stock or bond index value at the close of trading of the
                      contract and the price at which the futures contract is
                      originally struck. No physical delivery of the stocks or
                      bonds comprising the Index is made; generally contracts
                      are closed out prior to the expiration date of the
                      contracts.
                             No price is paid upon entering into futures
                      contracts. Instead, a Portfolio would be required to
                      deposit an amount of cash or U.S. Treasury securities
                      known as "initial margin." Subsequent payments, called
                      "variation margin," to and from the broker, would be made
                      on a daily basis as the value of the futures position
                      varies (a process known as "marking to market"). The
                      margin is in the nature of a performance bond or
                      good-faith deposit on a futures contract.
                             Eurodollar instruments are U.S. dollar-denominated
                      futures contracts or options thereon which are linked to
                      the London Interbank Offered Rate ("LIBOR"), although
                      foreign currency denominated instruments are available
                      from time to time. Eurodollar futures contracts enable
                      purchasers to obtain a fixed rate for the lending of the
                      funds and sellers to obtain a fixed rate for borrowings.
                             There are risks associated with these activities,
                      including the following: (1) the success of a hedging
                      strategy may depend on an ability to predict movements in
                      the prices of individual securities, fluctuations in
                      markets and movements in interest rates; (2) there may be
                      an imperfect or no correlation between the changes in
                      market value of the securities held by the Portfolio and
                      the prices of futures and options on futures; (3) there
                      may not be a liquid secondary market for a futures
                      contract or option; (4) trading restrictions or
                      limitations may be imposed by an exchange; and (5)
                      government regulations may restrict trading in futures
                      contracts and futures options.
                             A Portfolio may enter into futures contracts and
                      options on futures contracts traded on an exchange
                      regulated by the Commodities Futures Trading Commission
                      ("CFTC"), as long as, to the extent that such transactions
                      are not for "bona fide hedging purposes," the aggregate
                      initial margin and premiums on such positions (excluding
                      the amount by which such options are in the money) do not
                      exceed 5%
 
                                       46
<PAGE>   50
 
                      of a Portfolio's net assets. A Portfolio may buy and sell
                      futures contracts and related options to manage its
                      exposure to changing interest rates and securities prices.
                      Some strategies reduce a Portfolio's exposure to price
                      fluctuations, while others tend to increase its market
                      exposure. Futures and options on futures can be volatile
                      instruments and involve certain risks that could
                      negatively impact a Portfolio's return.
                             In order to avoid leveraging and related risks,
                      when a Portfolio purchases futures contracts, it will
                      collateralize its position by depositing an amount of cash
                      or liquid, high grade debt securities equal to the market
                      value of the futures positions held, less margin deposits,
                      in a segregated account with its custodian. Collateral
                      equal to the current market value of the futures position
                      will be marked to market on a daily basis.
 
Illiquid Securities   Illiquid securities are securities that cannot be disposed
                      of within seven business days at approximately the price
                      at which they are being carried on the Portfolio's books.
                      Illiquid securities include demand instruments with a
                      demand notice period exceeding seven days, when there is
                      no secondary market for such security and repurchase
                      agreements with durations over seven days in length.
 
Money Market
Instruments           Money market securities are high-quality,
                      dollar-denominated, short-term debt instruments. They
                      consist of: (i) bankers' acceptances, certificates of
                      deposits, notes and time deposits of highly-rated U.S.
                      banks and U.S. branches of foreign banks; (ii) U.S.
                      Treasury Obligations and obligations of agencies and
                      instrumentalities of the U.S. Government; (iii)
                      high-quality commercial paper issued by U.S. and foreign
                      corporations; (iv) debt obligations with a maturity of one
                      year or less issued by corporations that issue
                      high-quality commercial paper; and (v) repurchase
                      agreements involving any of the foregoing obligations
                      entered into with highly-rated banks and broker-dealers.
 
Mortgage-Backed
Securities            Mortgage-backed securities are instruments that entitle
                      the holder to a share of all interest and principal
                      payments from mortgages underlying the security. The
                      mortgages backing these securities include conventional
                      fifteen- and thirty-year fixed rate mortgages, graduated
                      payment mortgages, adjustable rate mortgages, and balloon
                      mortgages. During periods of declining interest rates,
                      prepayment of mortgages underlying mortgage-backed
                      securities can be expected to accelerate. Prepayment of
                      mortgages which underlie securities purchased at a premium
                      often results in capital losses, while prepayment of
                      mortgages purchased at a discount often results in capital
                      gains. Because of these unpredictable prepayment
                      characteristics, it is often not possible to predict
                      accurately the average life or realized yield of a
                      particular issue.
                             Government Pass-Through Securities.  These are
                      securities that are issued or guaranteed by a U.S.
                      Government agency representing an interest in a pool of
 
                                       47
<PAGE>   51
 
                      mortgage loans. The primary issuers or guarantors of these
                      mortgage-backed securities are GNMA, FNMA and FHLMC. GNMA,
                      FNMA and FHLMC guarantee timely distributions of interest
                      to certificate holders. GNMA and FNMA also guarantee
                      timely distributions of scheduled principal. FNMA and
                      FHLMC obligations are not backed by the full faith and
                      credit of the U.S. Government as GNMA certificates are,
                      but FNMA and FHLMC securities are supported by the
                      instrumentalities' right to borrow from the U.S. Treasury.
                             Private Pass-Through Securities.  These are
                      mortgage-backed securities issued by a non-governmental
                      entity, such as a trust or corporate entity. These
                      securities include collateralized mortgage obligations
                      ("CMOs") and real estate mortgage investment conduits
                      ("REMICs"). While they are generally structured with one
                      or more types of credit enhancement, private pass-through
                      securities typically lack a guarantee by an entity having
                      the credit status of a governmental agency or
                      instrumentality.
                             Collateralized Mortgage Obligations ("CMOs").  CMOs
                      are debt obligations or multiclass pass-through
                      certificates issued by agencies or instrumentalities of
                      the U.S. Government or by private originators or investors
                      in mortgage loans. Principal payments on the underlying
                      mortgage assets may cause CMOs to be retired substantially
                      earlier than their stated maturities or final distribution
                      dates, resulting in a loss of all or part of any premium
                      paid.
                             Parallel Pay Securities; PAC Bonds.  Parallel pay
                      CMOs and REMICS are structured to provide payments of
                      principal on each payment date to more than one class.
                      These simultaneous payments are taken into account in
                      calculating the stated maturity date or final distribution
                      date of each class, which must be retired by its stated
                      maturity date or final distribution date, but may be
                      retired earlier. Planned Amortization Class CMOs ("PAC
                      Bonds") generally require payments of a specified amount
                      of principal on each payment date. PAC Bonds are always
                      parallel pay CMOs with the required principal payment on
                      such securities having the highest priority after interest
                      has been paid to all classes.
                             REMICs.  A REMIC is a CMO that qualifies for
                      special tax treatment under the Internal Revenue Code and
                      invests in certain mortgages principally secured by
                      interests in real property. Investors may purchase
                      beneficial interests in REMICs, which are known as
                      "regular" interests, or "residual" interests. Guaranteed
                      REMIC pass-through certificates ("REMIC Certificates")
                      issued by FNMA or FHLMC represent beneficial ownership
                      interests in a REMIC trust consisting principally of
                      mortgage loans or FNMA, FHLMC or GNMA-guaranteed mortgage
                      pass-through certificates.
                             Stripped Mortgage-Backed Securities ("SMBs").  SMBs
                      are usually structured with two classes that receive
                      specified proportions of the monthly interest and
                      principal payments from a pool of mortgage securities. One
                      class may receive all of the interest payments and is thus
                      termed an interest-only class ("IO"), while the
 
                                       48
<PAGE>   52
 
                      other class may receive all of the principal payments and
                      is thus termed the principal-only class ("PO"). The value
                      of IOs tends to increase as rates rise and decrease as
                      rates fall; the opposite is true of POs. SMB's are
                      extremely sensitive to changes in interest rates because
                      of the impact thereon of prepayment of principal on the
                      underlying mortgage securities.
 
Mortgage Dollar Rolls Mortgage "dollar rolls" are transactions in which
                      mortgage-backed securities are sold for delivery in the
                      current month and the seller simultaneously contracts to
                      repurchase substantially similar securities on a specified
                      future date. The difference between the sale price and the
                      purchase price (plus any interest earned on the cash
                      proceeds of the sale) is netted against the interest
                      income foregone on the securities sold to arrive at an
                      implied borrowing rate. Alternatively, the sale and
                      purchase transactions can be executed at the same price,
                      with the Portfolio being paid a fee as consideration for
                      entering into the commitment to purchase.
 
Municipal Securities  Municipal securities consist of: (i) debt obligations
                      issued by or on behalf of public authorities to obtain
                      funds to be used for various public facilities, for
                      refunding outstanding obligations, for general operating
                      expenses, and for lending such funds to other public
                      institutions and facilities, and (ii) certain private
                      activity and industrial development bonds issued by or on
                      behalf of public authorities to obtain funds to provide
                      for the construction, equipment, repair or improvement of
                      privately operated facilities.
 
Obligations of
Supranational
Entities              Obligations of supranational entities are obligations of
                      entities established through the joint participation of
                      several governments, such as the Asian Development Bank,
                      the Inter-American Development Bank, International Bank
                      for Reconstruction and Development (World Bank), African
                      Development Bank, European Economic Community, European
                      Investment Bank and the Nordic Investment Bank.
 
Options               A put option gives the purchaser of the option the right
                      to sell, and the writer of the option the obligation to
                      buy, the underlying security at any time during the option
                      period. A call option gives the purchaser of the option
                      the right to buy, and the writer of the option the
                      obligation to sell, the underlying security at any time
                      during the option period. The premium paid to the writer
                      is the consideration for undertaking the obligations under
                      the option contract. The initial purchase (sale) of an
                      option contract is an "opening transaction." In order to
                      close out an option position, a Portfolio may enter into a
                      "closing transaction," which is simply the sale (purchase)
                      of an option contract on the same security with the same
                      exercise price and expiration date as the option contract
                      originally opened. If a Portfolio is unable to effect a
                      closing purchase transaction with respect to an option it
                      has written, it will not be able to sell the underlying
                      security until the option expires or the Portfolio
                      delivers the security upon exercise.
 
                                       49
<PAGE>   53
 
                             A Portfolio may purchase put and call options to
                      protect against a decline in the market value of the
                      securities in its portfolio or to anticipate an increase
                      in the market value of securities that the Portfolio may
                      seek to purchase in the future. A Portfolio purchasing put
                      and call options pays a premium therefor. If price
                      movements in the underlying securities are such that
                      exercise of the options would not be profitable for the
                      Portfolio, loss of the premium paid may be offset by an
                      increase in the value of the Portfolio's securities or by
                      a decrease in the cost of acquisition of securities by the
                      Portfolio.
                             A Portfolio may write covered call options as a
                      means of increasing the yield on its fund and as a means
                      of providing limited protection against decreases in its
                      market value. When a fund sells an option, if the
                      underlying securities do not increase or decrease to a
                      price level that would make the exercise of the option
                      profitable to the holder thereof, the option generally
                      will expire without being exercised and the Portfolio will
                      realized as profit the premium received for such option.
                      When a call option written by a Portfolio is exercised,
                      the Portfolio will be required to sell the underlying
                      securities to the option holder at the strike price, and
                      will not participate in any increase in the price of such
                      securities above the strike price. When a put option
                      written by a Portfolio is exercised, the Portfolio will be
                      required to purchase the underlying securities at the
                      strike price, which may be in excess of the market value
                      of such securities.
                             A Portfolio may purchase and write options on an
                      exchange or over-the-counter. Over-the-counter options
                      ("OTC options") differ from exchange-traded options in
                      several respects. They are transacted directly with
                      dealers and not with a clearing corporation, and therefore
                      entail the risk of non-performance by the dealer. OTC
                      options are available for a greater variety of securities
                      and for a wider range of expiration dates and exercise
                      prices than are available for exchange-traded options.
                      Because OTC options are not traded on an exchange, pricing
                      is done normally by reference to information from a market
                      maker. It is the position of the SEC that OTC options are
                      generally illiquid.
                             A Portfolio may purchase and write put and call
                      options on foreign currencies (traded on U.S. and foreign
                      exchanges or over-the-counter markets) to manage its
                      exposure to exchange rates. Call options on foreign
                      currency written by a Portfolio will be "covered," which
                      means that the Portfolio will own an equal amount of the
                      underlying foreign currency. With respect to put options
                      on foreign currency written by a Portfolio, the Portfolio
                      will establish a segregated account with its Custodian
                      consisting of cash or liquid, high grade debt securities
                      in an amount equal to the amount the Portfolio would be
                      required to pay upon exercise of the put.
                             A Portfolio may purchase and write put and call
                      options on indices and enter into related closing
                      transactions. Put and call options on indices are similar
                      to options on securities except that options on an index
                      give the holder the right to
 
                                       50
<PAGE>   54
 
                      receive, upon exercise of the option, an amount of cash if
                      the closing level of the underlying index is greater than
                      (or less than, in the case of puts) the exercise price of
                      the option. This amount of cash is equal to the difference
                      between the closing price of the index and the exercise
                      price of the option, expressed in dollars multiplied by a
                      specified number. Thus, unlike options on individual
                      securities, all settlements are in cash, and gain or loss
                      depends on price movements in the particular market
                      represented by the index generally, rather than the price
                      movements in individual securities. A Portfolio may choose
                      to terminate an option position by entering into a closing
                      transaction. The ability of a Portfolio to enter into
                      closing transactions depends upon the existence of a
                      liquid secondary market for such transactions.
                             All options written on indices must be covered.
                      When a Portfolio writes an option on an index, it will
                      establish a segregated account containing cash or liquid,
                      high grade debt securities with its custodian in an amount
                      at least equal to the market value of the option and will
                      maintain the account while the option is open or will
                      otherwise cover the transaction.
                             Risk Factors:  Risks associated with options
                      transactions include: (1) the success of a hedging
                      strategy may depend on an ability to predict movements in
                      the prices of individual securities, fluctuations in
                      markets and movements in interest rates; (2) there may be
                      an imperfect correlation between the movement in prices of
                      options and the securities underlying them; (3) there may
                      not be a liquid secondary market for options; and (4)
                      while a Portfolio will receive a premium when it writes
                      covered call options, it may not participate fully in a
                      rise in the market value of the underlying security.
 
Receipts              Receipts are sold as zero coupon securities, which means
                      that they are sold at a substantial discount and redeemed
                      at face value at their maturity date without interim cash
                      payments of interest or principal. This discount is
                      accreted over the life of the security, and such accretion
                      will constitute the income earned on the security for both
                      accounting and tax purposes. Because of these features,
                      such securities may be subject to greater interest rate
                      volatility than interest paying investments. See also
                      "Taxes."
 
REITs                 REITs are trusts that invest primarily in commercial real
                      estate or real estate-related loans. The value of
                      interests in REITs may be affected by the value of the
                      property owned or the quality of the mortgages held by the
                      trust.
 
Repurchase Agreements Repurchase agreements are agreements by which a Portfolio
                      obtains a security and simultaneously commits to return
                      the security to the seller at an agreed upon price
                      (including principal and interest) on an agreed upon date
                      within a number of days from the date of purchase.
                      Repurchase agreements are considered loans under the 1940
                      Act.
 
                                       51
<PAGE>   55
 
Securities Lending    In order to generate additional income, a Portfolio may
                      lend securities which it owns pursuant to agreements
                      requiring that the loan be continuously secured by
                      collateral consisting of cash or securities of the U.S.
                      Government or its agencies equal to at least 100% of the
                      market value of the loaned securities. A Portfolio
                      continues to receive interest on the loaned securities
                      while simultaneously earning interest on the investment of
                      cash collateral. Collateral is marked to market daily.
                      There may be risks of delay in recovery of the securities
                      or even loss of rights in the collateral should the
                      borrower of the securities fail financially or become
                      insolvent.
 
Securities of
Foreign Issuers       There are certain risks connected with investing in
                      foreign securities. These include risks of adverse
                      political and economic developments (including possible
                      governmental seizure or nationalization of assets), the
                      possible imposition of exchange controls or other
                      governmental restrictions, less uniformity in accounting
                      and reporting requirements, the possibility that there
                      will be less information on such securities and their
                      issuers available to the public, the difficulty of
                      obtaining or enforcing court judgments abroad,
                      restrictions on foreign investments in other
                      jurisdictions, difficulties in effecting repatriation of
                      capital invested abroad and difficulties in transaction
                      settlements and the effect of delay on shareholder equity.
                      Foreign securities may be subject to foreign taxes, and
                      may be less marketable than comparable U.S. securities.
                      The value of a Portfolio's investments denominated in
                      foreign currencies will depend on the relative strengths
                      of those currencies and the U.S. dollars, and a Portfolio
                      may be affected favorably or unfavorably by changes in the
                      exchange rates or exchange control regulations between
                      foreign currencies and the U.S. dollar. Changes in foreign
                      currency exchange rates also may affect the value of
                      dividends and interest earned, gains and losses realized
                      on the sale of securities and net investment income and
                      gains if any, to be distributed to shareholders by a
                      Portfolio. Furthermore, emerging market countries may have
                      less stable political environments than more developed
                      countries. Also, it may be more difficult to obtain a
                      judgment in a court outside the United States.
 
Short Sales           A Portfolio may sell securities short against the box. A
                      short sale is "against the box" if at all times during
                      which the short position is open, the Portfolio owns at
                      least an equal amount of the securities or securities
                      convertible into, or exchangeable without further
                      consideration for, securities of the same issue as the
                      securities that are sold short.
 
Swaps, Caps, Floors
and Collars           Interest rate swaps, mortgage swaps, currency swaps and
                      other types of swap agreements such as caps, floors and
                      collars are designed to permit the purchaser to preserve a
                      return or spread on a particular investment or portion of
                      its portfolio, and to protect against any increase in the
                      price of securities a Portfolio anticipates purchasing at
                      a later date. In a typical interest rate swap, one party
                      agrees to make
 
                                       52
<PAGE>   56
 
                      regular payments equal to a floating interest rate times a
                      "notional principal amount," in return for payments equal
                      to a fixed rate times the same amount, for a specific
                      period of time. Swaps may also depend on other prices or
                      rates, such as the value of an index or mortgage
                      prepayment rates.
                             In a typical cap or floor agreement, one party
                      agrees to make payments only under specified
                      circumstances, usually in return for payment of a fee by
                      the other party.
                             Swap agreements will tend to shift the Fund's
                      investment exposure from one type of investment to
                      another. Depending on how they are used, swap agreements
                      may increase or decrease the overall volatility of the
                      Fund's investment and their share price and yield.
 
U.S. Government Agency
Obligations           Obligations issued or guaranteed by agencies of the U.S.
                      Government, including, among others, the Federal Farm
                      Credit Bank, the Federal Housing Administration and the
                      Small Business Administration, and obligations issued or
                      guaranteed by instrumentalities of the U.S. Government,
                      including, among others, the Federal Home Loan Mortgage
                      Corporation, the Federal Land Banks and the U.S. Postal
                      Service. Some of these securities are supported by the
                      full faith and credit of the U.S. Treasury (e.g., GNMA
                      securities), and others are supported by the right of the
                      issuer to borrow from the Treasury (e.g., Federal Farm
                      Credit Bank securities), while still others are supported
                      only by the credit of the instrumentality (e.g., FNMA
                      securities).
 
U.S. Treasury
Obligations           U.S. Treasury obligations consist of bills, notes and
                      bonds issued by the U.S. Treasury, as well as separately
                      traded interest and principal component parts of such
                      obligations known as Separately Traded Registered Interest
                      and Principal Securities ("STRIPS") that are transferable
                      through the Federal book-entry system. STRIPS are sold as
                      zero coupon securities.
 
U.S. Treasury
Receipts              U.S. Treasury receipts are interests in separately traded
                      interest and principal component parts of U.S. Treasury
                      obligations that are issued by banks or brokerage firms
                      and are created by depositing U.S. Treasury notes and
                      obligations into a special account at a custodian bank.
                      The custodian holds the interest and principal payments
                      for the benefit of the registered owners of the
                      certificates of receipts. The custodian arranges for the
                      issuance of the certificates or receipts evidencing
                      ownership and maintains the register.
 
Variable and Floating
Rate Instruments      Certain obligations may carry variable or floating rates
                      of interest and may involve conditional or unconditional
                      demand features. Such instruments bear interest at rates
                      which are not fixed, but which vary with changes in
                      specified market rates or indices. The interest rates on
                      these securities may be reset daily, weekly, quarterly or
                      some other reset period, and may have a floor or ceiling
                      on interest rate changes.
 
                                       53
<PAGE>   57
 
Warrants              Warrants are instruments giving holders the right, but not
                      the obligation, to buy equity or fixed income securities
                      of a company at a given price during a specified period.
 
When-Issued and Delayed
Delivery Securities   When-issued or delayed delivery transactions involve the
                      purchase of an instrument with payment and delivery taking
                      place in the future. Delivery of and payment for these
                      securities may occur a month or more after the date of the
                      purchase commitment.
 
Yankee Obligations    Yankee obligations ("Yankees") are U.S. dollar-denominated
                      instruments of foreign issuers who either register with
                      the Securities and Exchange Commission or issue securities
                      under Rule 144A of the Securities Exchange Act of 1933.
                      These consist of debt securities (including preferred or
                      preference stock of non-governmental issuers),
                      certificates of deposit, fixed time deposits and bankers'
                      acceptances issued by foreign banks, and debt obligations
                      of foreign governments or their subdivisions, agencies and
                      instrumentalities, international agencies and
                      supranational entities.
 
Zero Coupon, Pay In-Kind
and Deferred Payment
Securities            Zero coupon securities are securities that are sold at a
                      discount to par value and securities on which interest
                      payments are not made during the life of the security.
                      Upon maturity, the holder is entitled to receive the par
                      value of the security. While interest payments are not
                      made on such securities, holders of such securities are
                      deemed to have received "phantom income" annually. Because
                      a Portfolio will distribute its "phantom income" to
                      shareholders, to the extent that shareholders elect to
                      receive dividends in cash rather than reinvesting such
                      dividends in additional shares, a Portfolio will have
                      fewer assets with which to purchase income producing
                      securities. Zero coupon, pay-in-kind and deferred payment
                      securities may be subject to greater fluctuation in value
                      and lesser liquidity in the event of adverse market
                      conditions that comparably rated securities paying cash
                      interest at regular interest payment periods.
 
                             Additional information on other permitted
                      investments can be found in the Trust's Statement of
                      Additional Information and in the Underlying Portfolios'
                      Prospectuses and Statements of Additional Information.
 
                                       54
<PAGE>   58
 
TABLE OF CONTENTS
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                                 <C>
Fund Expenses (Class D Shares)....................     2
Indirect Expenses.................................     3
Financial Highlights..............................     4
Investment Objectives and Policies of the Funds...     5
General Investment Policies of the Funds..........     9
Risk Factors of the Funds.........................    10
Investment Limitations of the Funds...............    11
Portfolio Turnover of the Funds...................    11
Investment Goals of the Underlying Portfolios.....    12
Investment Objectives and Policies of the
  Underlying Portfolios...........................    12
General Investment Policies of the Underlying
  Portfolios......................................    22
Risk Factors of the Underlying Portfolios.........    24
Fundamental Limitations of the Underlying
  Portfolios......................................    24
The Adviser and Manager of the Funds..............    25
The Advisers and Sub-Advisers to the Underlying
  Portfolios......................................    26
Transfer Agent....................................    36
Distribution of Fund Shares and Shareholder
  Servicing.......................................    36
Purchase and Redemption of Shares.................    38
Performance.......................................    40
Taxes.............................................    41
General Information...............................    42
Description of Permitted Investments and Risk
  Factors of the Underlying Portfolios............    44
</TABLE>
 
                                       55
<PAGE>   59
 
                PRELIMINARY PROSPECTUS DATED SEPTEMBER 16, 1996
                             SUBJECT TO COMPLETION
 
SEI ASSET ALLOCATION TRUST
DECEMBER 1, 1996
- --------------------------------------------------------------------------------
 
DIVERSIFIED CONSERVATIVE INCOME FUND
DIVERSIFIED CONSERVATIVE FUND
DIVERSIFIED GLOBAL MODERATE GROWTH FUND
DIVERSIFIED MODERATE GROWTH FUND
DIVERSIFIED GLOBAL GROWTH FUND
DIVERSIFIED GLOBAL STOCK FUND
DIVERSIFIED U.S. STOCK FUND
 
- --------------------------------------------------------------------------------
 
This Prospectus sets forth concisely information about the above-referenced
Funds. Please read this Prospectus carefully before investing, and keep it on
file for future reference.
 
A Statement of Additional Information dated December 1, 1996, has been filed
with the Securities and Exchange Commission ("SEC") and may be obtained upon
request and without charge by writing the Distributor, SEI Financial Services
Company (the "Distributor"), at 680 East Swedesford Road, Wayne, Pennsylvania
19087-1658, or by calling 1-800-342-5734. The Statement of Additional
Information is incorporated into this Prospectus by reference.
 
SEI Asset Allocation Trust (the "Trust") is an open-end management investment
company consisting of the following seven separate diversified investment
portfolios (each a "Fund" and, together, the "Funds"): Diversified Conservative
Income Fund, Diversified Conservative Fund, Diversified Global Moderate Growth
Fund, Diversified Moderate Growth Fund, Diversified Global Growth Fund (formerly
the Diversified Growth Fund), Diversified Global Stock Fund and Diversified U.S.
Stock Fund. Each Fund offers investors a convenient means of investing in shares
of certain mutual funds (the "Underlying Portfolios") managed by SEI Financial
Management Corporation ("SFM" or the "Adviser") within certain predetermined
percentage ranges. Each Fund offers two classes of shares, Class A Shares and
Class D Shares. Class A Shares are offered primarily to tax-advantaged and other
retirement accounts. Class D Shares are offered primarily to tax-advantaged and
other retirement accounts through banks, broker-dealers and other financial
institutions that have entered into arrangements with the Distributor to sell
Class D Shares to their customers. Class D Shares differ from Class A Shares
primarily in the allocation of certain distribution, shareholder servicing and
transfer agent expenses, and in the range and types of shareholder services
offered to investors. This Prospectus offers Class A Shares of the Funds.
- --------------------------------------------------------------------------------
 
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.
 
THE TRUST'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK. THE TRUST'S SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER GOVERNMENT
AGENCY. INVESTMENT IN THE FUNDS INVOLVES RISK, INCLUDING POSSIBLE LOSS OF THE
PRINCIPAL AMOUNT INVESTED.
 
     THE INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OF AMENDMENT. A
     REGISTRATION STATEMENT RELATING TO, AMONG OTHER THINGS, THIS PROSPECTUS HAS
     BEEN FILED WITH THE SECURITIES AND EXCHANGE COMMISSION. SECURITIES OF THE
     FUNDS REFERENCED IN THIS PROSPECTUS MAY NOT BE SOLD NOR MAY OFFERS TO BUY
     SUCH SECURITIES BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT
     BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR
     THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BY ANY SALE OF
     SECURITIES REFERENCED HEREIN IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION
     OR SALE WOULD BE UNLAWFUL PRIOR TO SUCH REGISTRATION OR QUALIFICATION UNDER
     THE SECURITIES LAWS OF ANY SUCH STATE.
<PAGE>   60
 
FUND EXPENSES
 
The purpose of the following table is to help you understand the various costs
and expenses that you, as a shareholder, will bear directly in connection with
an investment in each Fund's Class A Shares ("Direct Expenses"). The table below
does not reflect any of the operating costs and investment advisory fees of the
Underlying Portfolios. In addition to the Direct Expenses, Class A Shareholders
of the Funds will indirectly bear their pro rata share of the expenses of the
Underlying Portfolios ("Indirect Expenses"). See "Indirect Expenses."
 
ANNUAL OPERATING EXPENSES (DIRECT EXPENSES)
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                               DIVERSIFIED
                                   DIVERSIFIED                   GLOBAL     DIVERSIFIED  DIVERSIFIED  DIVERSIFIED
                                   CONSERVATIVE  DIVERSIFIED    MODERATE     MODERATE      GLOBAL       GLOBAL     DIVERSIFIED
                                      INCOME     CONSERVATIVE    GROWTH       GROWTH       GROWTH        STOCK     U.S. STOCK
                                       FUND          FUND         FUND         FUND         FUND         FUND         FUND
                                   ------------  ------------  -----------  -----------  -----------  -----------  ----------
<S>                                <C>           <C>           <C>          <C>          <C>          <C>          <C>
Management/Advisory Fees (after
  waivers) (1)                       .00%          .00%          .00%         .00%         .00%         .00%         .00%
12b-1 Fees                           None          None          None         None         None         None         None
Total Other Expenses (after
  expense reimbursements) (2) (3)    .12%          .12%          .12%         .12%         .12%         .12%         .12%
- -----------------------------------------------------------------------------------------------------------------------------
Total Operating Expenses (after
  waivers and expense
  reimbursement) (3)                 .12%          .12%          .12%         .12%         .12%         .12%         .12%
- -----------------------------------------------------------------------------------------------------------------------------
</TABLE>
 
(1)  SFM is currently waiving its advisory and management fees. Absent fee
     waivers, management and advisory fees for each Fund would be .30%. These
     fee waivers are voluntary and may be discontinued by SFM at any time in its
     sole discretion.

(2)  Absent SFM's expense reimbursement, other expenses are estimated to be .14%
     for the current fiscal year.
(3)  Absent SFM's fee waivers and expense reimbursements, the total operating
     expenses of each Fund's Class A Shares would be .44%.
 
EXAMPLE
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                          1 YR.    3 YRS.
                                                                                                          -----    ------
<S>                                                                                                       <C>      <C>
An investor in a Fund would pay the following expenses on a $1,000 investment assuming: (1) a 5% annual
  return, and (2) redemption at the end of each time period:
    Diversified Conservative Income Fund                                                                   $ 1       $4
    Diversified Conservative Fund                                                                          $ 1       $4
    Diversified Global Moderate Growth Fund                                                                $ 1       $4
    Diversified Moderate Growth Fund                                                                       $ 1       $4
    Diversified Global Growth Fund                                                                         $ 1       $4
    Diversified Global Stock Fund                                                                          $ 1       $4
    Diversified U.S. Stock Fund                                                                            $ 1       $4
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>
 
THE EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE
EXPENSES. ACTUAL EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.
 
The purpose of the expense tables and example is to assist the investor in
understanding the various costs and expenses that may be directly or indirectly
borne by investors in Class A Shares of each Fund. A person who purchases shares
through an account with a financial institution may be charged separate fees by
that institution in addition to those set forth above. The information set forth
in the foregoing table and example relates to the Class A Shares. Class A Shares
are subject to the same management and advisory expenses as Class D Shares, but
are subject to different distribution, shareholder servicing and transfer agent
expenses. Additional information may be found under "The Adviser and Manager of
the Funds" and "Distribution of Fund Shares and Shareholder Servicing."
 
                                        2
<PAGE>   61
 
INDIRECT EXPENSES
 
Investors in the Funds should recognize that they may invest directly in the
Underlying Portfolios and that, by investing in Underlying Portfolios through
the Funds, they will bear not only their proportionate share of the expenses of
the Funds (including operating costs and investment advisory and administrative
fees to the extent the Adviser has not elected to waive such fees), but will
also indirectly bear similar expenses of the Underlying Portfolios ("Indirect
Expenses"). Moreover, the investment returns of the Funds will be net of the
expenses of the Underlying Portfolios. Investors that purchase shares of the
Funds through managed account programs who pay separate advisory fees for asset
allocation services should recognize that the combined expenses of the program
and the Funds (including the expenses charged by the Underlying Portfolios) may
involve greater fees and expenses than those present in other types of
investments. In addition, a shareholder of a Fund will indirectly bear expenses
paid by an Underlying Portfolio related to the distribution of its shares, if
any. Currently, Class A Shares of the Underlying Portfolios are subject to a
shareholder servicing fee of up to .25%. See "Distribution of Fund Shares and
Shareholder Servicing."
 
The chart below sets forth the expense ratios for each of the Underlying
Portfolios in which the Funds will invest (based on information as of September
30, 1996).
 
<TABLE>
<CAPTION>
                   UNDERLYING PORTFOLIOS ELIGIBLE FOR PURCHASE                     UNDERLYING PORTFOLIOS' EXPENSE RATIOS*
<S>                                                                                <C>
SIMT Large Cap Growth Portfolio                                                                     .85%
SIMT Large Cap Value Portfolio                                                                      .85%
SIMT Small Cap Growth Portfolio                                                                    1.10%
SIMT Small Cap Value Portfolio                                                                     1.10%
SIT International Equity Portfolio                                                                 1.28%
SIT Emerging Markets Equity Portfolio                                                              1.95%
SIMT Core Fixed Income Portfolio                                                                    .60%
SIMT High Yield Bond Portfolio                                                                      .85%
SIT International Fixed Income Portfolio                                                           1.00%
SLAT Prime Obligation Portfolio                                                                     .44%
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>
 
* The Funds will purchase only Class A Shares of the Underlying Portfolios. The
  expense ratios of the Class A Shares of the Underlying Portfolios shown above
  reflect existing fee waivers and expense reimbursement arrangements that may
  be discontinued at any time. Absent these fee waivers on the Class A Shares of
  the Underlying Portfolios, these expense ratios would be higher.
 
Set forth below are the Expense Ranges of the Underlying Portfolios in which the
Funds invest. A range is provided since the average assets of each Fund invested
in each of the Underlying Portfolios may fluctuate. The investment ranges for
each Fund are set forth in the "Investment Objectives and Policies of the Funds"
section.
 
EXPENSE RANGES (INDIRECT EXPENSES)
 
<TABLE>
- -------------------------------------------------------------------------------------------------------------------
<S>                                                                                                   <C>
Based on the expense ratios of the Underlying Portfolios, the range of average weighted                    RANGE OF
  operating expenses for Class A shares of the Funds are expected to be as follows:                        EXPENSES
                                                                                                        ---------
    Diversified Conservative Income Fund                                                               .58% to .80%
    Diversified Conservative Fund                                                                      .65% to .90%
    Diversified Global Moderate Growth Fund                                                           .68% to 1.11%
    Diversified Moderate Growth Fund                                                                   .69% to .97%
    Diversified Growth Fund                                                                           .78% to 1.22%
    Diversified Global Stock Fund                                                                     .85% to 1.22%
    Diversified U.S. Stock Fund                                                                        .75% to .95%
- -------------------------------------------------------------------------------------------------------------------
</TABLE>
 
                                        3
<PAGE>   62
 
FINANCIAL HIGHLIGHTS
 
For a Share Outstanding Throughout the Period -- Unaudited
<TABLE>
<CAPTION>
                                                    Net
                                                 Realized                                                                  Ratio of
                    Net                             and                             Net                         Net        Expenses
                   Asset           Net          Unrealized       Dividends         Asset                      Assets          to
                   Value        Investment         Gains          from Net         Value                      End of       Average
                 Beginning       Income/        (Losses) on      Investment         End           Total       Period         Net
                 of Period        (Loss)        Securities         Income        of Period       Return        (000)        Assets
<S>              <C>            <C>             <C>              <C>             <C>            <C>           <C>          <C>
- -----------------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------
DIVERSIFIED CONSERVATIVE INCOME FUND
- -----------------------------------------
Class D
Period Ended
07/31/96 (1)      $ 10.09         $(0.01)         $ (0.05)         $(0.01)        $ 10.02        -0.61%**     $   303        1.12%*
- --------------------------------
DIVERSIFIED CONSERVATIVE FUND
- --------------------------------
Class D
Period Ended
07/31/96 (2)      $  9.33         $(0.12)         $ (0.05)         $ 0.00         $  9.16        -1.82%**     $   279        1.12%*
- --------------------------------------
DIVERSIFIED MODERATE GROWTH FUND
- --------------------------------------
Class D
Period Ended
07/31/96 (3)      $ 10.21         $ 0.01          $ (0.31)         $ 0.00         $  9.91        -2.94%**     $ 3,687        1.12%*
- ---------------------------
DIVERSIFIED GLOBAL GROWTH FUND
- ---------------------------
Class D
Period Ended
07/31/96 (4)      $ 10.24         $ 0.00          $ (0.45)         $ 0.00         $  9.79        -4.39%**     $ 5,213        1.12%*
- ------------------------------
DIVERSIFIED U.S. STOCK FUND
- ------------------------------
Class D
Period Ended
07/31/96 (5)      $ 10.36         $ 0.01          $ (0.66)         $ 0.00         $  9.71        -6.27%**     $ 4,010        1.12%*
 
<CAPTION>
                                                Ratio of
                                                  Net
                              Ratio of         Investment
               Ratio of       Expenses          Income/
              Investment          to           (Loss) to
               Income/         Average          Average
              (Loss) to          Net              Net
               Average          Assets          Assets         Portfolio
                 Net          (Excluding      (Excluding       Turnover
                Assets         Waivers)        Waivers)          Rate
<S>              <C>          <C>             <C>              <C>
- -------------------------------------------------------------------------
- ------------------------------------
DIVERSIFIED CONSERVATIVE INCOME FUND
- ------------------------------------
Class D
Period Ended
07/31/96 (1)    3.56%*         15.91%*         -11.23%*           21%
- -----------------------------
DIVERSIFIED CONSERVATIVE FUND
- -----------------------------
Class D
Period Ended
07/31/96 (2)    1.66%*         16.86%*         -14.08%*            2%
- --------------------------------
DIVERSIFIED MODERATE GROWTH FUND
- --------------------------------
Class D
Period Ended
07/31/96 (3)    0.74%*          4.75%*          -2.89%*            2%
- ------------------------------
DIVERSIFIED GLOBAL GROWTH FUND
- ------------------------------
Class D
Period Ended
07/31/96 (4)    0.01%*          4.19%*          -3.06%*            0%
- ---------------------------
DIVERSIFIED U.S. STOCK FUND
- ---------------------------
Class D
Period Ended
07/31/96 (5)   -1.03%*          3.03%*          -2.94%*           33%
</TABLE>
 
 *  Annualized.
**  Total return has not been annualized.
(1) Commenced operations 06/21/96
(2) Commenced operations 07/01/96
(3) Commenced operations 05/30/96
(4) Commenced operations 05/30/96
(5) Commenced operations 07/01/96
 
                                        4
<PAGE>   63
 
INVESTMENT
OBJECTIVES AND
POLICIES OF
THE FUNDS
 
                      The Funds offer investors the opportunity to invest in
                      certain of the Underlying Portfolios, and are designed
                      primarily for tax-advantaged retirement and other long-
                      term investment or savings accounts, including: Individual
                      Retirement Accounts ("IRAs"), 403(b)(7) tax-sheltered
                      retirement accounts for employees of certain non-profit
                      organizations, 401(k) savings plans, profit-sharing and
                      money-purchase pension plans, and other employer-sponsored
                      pension and savings plans.
                             In order to achieve its investment objective, each
                      Fund invests a percentage of its assets within
                      predetermined percentage ranges in certain of the
                      Underlying Portfolios, which are separately-managed series
                      of the following investment companies: SEI Institutional
                      Managed Trust ("SIMT"), SEI International Trust ("SIT")
                      and SEI Liquid Asset Trust ("SLAT" and, together with SIMT
                      and SIT, the "Underlying Trusts"). The percentages reflect
                      the extent to which each Fund will invest in the
                      particular market segment represented by each Underlying
                      Portfolio, and the varying degrees of potential investment
                      risk and reward represented by each Fund's investments in
                      those market segments and their corresponding Underlying
                      Portfolios. The Adviser may alter these percentage ranges
                      when it deems appropriate. The assets of each Fund will be
                      allocated among each of the Underlying Portfolios in
                      accordance with its investment objective, the Adviser's
                      outlook for the economy, the financial markets and the
                      relative market valuations of the Underlying Portfolios.
                      In addition, in order to meet liquidity needs or for
                      temporary defensive purposes, each Fund may invest its
                      assets directly in cash, money market securities, or other
                      instruments, including stock or bond index futures and
                      options thereon. The investment objective of each Fund is
                      set forth below. Each Fund's investment objective is a
                      fundamental policy, and may not be changed without
                      shareholder approval. There can be no assurance that the
                      Funds will achieve their stated objectives.
 
DIVERSIFIED
CONSERVATIVE
INCOME FUND           The Diversified Conservative Income Fund seeks to provide
                      current income and an opportunity for capital appreciation
                      through limited participation in domestic equity markets.
                      In general, relative to the other Funds, the Diversified
                      Conservative Income Fund should offer investors the
                      potential for a medium to high level of income and the
                      potential for a low to medium level of capital growth,
                      while subjecting investors
 
                                        5
<PAGE>   64
 
                        to a medium level of principal risk. The Fund will
                        invest in the following Underlying Portfolios within the
                        percentage ranges set forth below:
  
<TABLE>
<CAPTION>
                                                                        INVESTMENT RANGE (PERCENT OF THE
                        UNDERLYING PORTFOLIO                     DIVERSIFIED CONSERVATIVE INCOME FUND'S ASSETS)
                        ---------------------------------------------------------------------------------------
                        <S>                                      <C>
                        SIMT Large Cap Growth                                         5-20%
                        SIMT Large Cap Value                                          5-20%
                        SIMT Small Cap Growth                                         0-15%
                        SIMT Small Cap Value                                          0-15%
                        SIMT Core Fixed Income                                       50-65%
                        SLAT Prime Obligation                                         0-30%
                        ---------------------------------------------------------------------------------------
</TABLE>
 
DIVERSIFIED
CONSERVATIVE FUND     The Diversified Conservative Fund seeks to provide current
                      income with the opportunity for capital appreciation
                      through limited participation in the domestic and
                      international equity markets. In general, relative to the
                      other Funds, the Diversified Conservative Fund should
                      offer investors the potential for a medium level of income
                      and the potential for a low to medium level of capital
                      growth, while subjecting investors to a medium level of
                      principal risk. The Fund will invest in the following
                      Underlying Portfolios within the percentage ranges set
                      forth below:
 
<TABLE>
<CAPTION>
                                                                        INVESTMENT RANGE (PERCENT OF THE
                      UNDERLYING PORTFOLIO                        DIVERSIFIED CONSERVATIVE FUND'S ASSETS)
                      ---------------------------------------------------------------------------------------
                      <S>                                      <C>
                      SIMT Large Cap Growth                                         5-20%
                      SIMT Large Cap Value                                          5-20%
                      SIMT Small Cap Growth                                         0-15%
                      SIMT Small Cap Value                                          0-15%
                      SIT International Equity                                      5-20%
                      SIMT Core Fixed Income                                       40-55%
                      SIT International Fixed Income                               10-25%
                      SLAT Prime Obligation                                         0-30%
                      ---------------------------------------------------------------------------------------
</TABLE>
 
                                        6
<PAGE>   65
 
DIVERSIFIED GLOBAL
MODERATE
GROWTH FUND           The Diversified Global Moderate Growth Fund seeks to
                      provide long-term capital appreciation through
                      participation in the domestic and global equity markets
                      with a limited level of current income. In general,
                      relative to the other Funds, the Diversified Global
                      Moderate Growth Fund should offer investors the potential
                      for a medium level of income and the potential for a
                      medium level of capital growth, while subjecting investors
                      to a medium level of principal risk. The Fund will invest
                      in the following Underlying Portfolios within the
                      percentage ranges set forth below:
 
<TABLE>
<CAPTION>
                                                                      INVESTMENT RANGE (PERCENT OF THE
                        UNDERLYING PORTFOLIO                  DIVERSIFIED GLOBAL MODERATE GROWTH FUND'S ASSETS)
                        ---------------------------------------------------------------------------------------
                        <S>                                   <C>
                        SIMT Large Cap Growth                                       10-25%
                        SIMT Large Cap Value                                        10-25%
                        SIMT Small Cap Growth                                        0-15%
                        SIMT Small Cap Value                                         0-15%
                        SIT International Equity                                    10-25%
                        SIT Emerging Markets Equity                                  0-15%
                        SIMT Core Fixed Income                                      20-35%
                        SIMT High Yield Bond                                         5-20%
                        SIT International Fixed Income                               0-15%
                        SLAT Prime Obligation                                        0-30%
                        ---------------------------------------------------------------------------------------
</TABLE>
 
DIVERSIFIED
MODERATE
GROWTH FUND           The Diversified Moderate Growth Fund seeks to provide
                      long-term capital appreciation with a limited level of
                      current income. In general, relative to the other Funds,
                      the Diversified Moderate Growth Fund should offer
                      investors the potential for a medium level of income and
                      the potential for a medium level of capital growth, while
                      subjecting investors to a medium level of principal risk.
                      The Fund will invest in the following Underlying
                      Portfolios within the percentage ranges set forth below:
 
<TABLE>
<CAPTION>
                                                                      INVESTMENT RANGE (PERCENT OF THE
                        UNDERLYING PORTFOLIO                    DIVERSIFIED MODERATE GROWTH FUND'S ASSETS)
                        ---------------------------------------------------------------------------------------
                        <S>                                   <C>
                        SIMT Large Cap Growth                                       10-25%
                        SIMT Large Cap Value                                        10-25%
                        SIMT Small Cap Growth                                        0-15%
                        SIMT Small Cap Value                                         0-15%
                        SIT International Equity                                    10-25%
                        SIMT Core Fixed Income                                      25-40%
                        SIT International Fixed Income                               5-20%
                        SLAT Prime Obligation                                        0-30%
                        ---------------------------------------------------------------------------------------
</TABLE>
 
DIVERSIFIED GLOBAL
GROWTH FUND           The Diversified Global Growth Fund (formerly Diversified
                      Growth Fund) seeks to provide long-term capital
                      appreciation. Current income is a secondary consideration.
                      In general, relative to the other Funds, the Diversified
                      Global Growth Fund should
 
                                        7
<PAGE>   66
 
                        offer investors the potential for a low to medium level
                        of income and the potential for a medium to high level
                        of capital growth, while subjecting investors to a
                        higher level of principal risk. The Fund will invest in
                        the following Underlying Portfolios within the
                        percentage ranges set forth below:
 
<TABLE>
<CAPTION>
                                                                        INVESTMENT RANGE (PERCENT OF THE
                        UNDERLYING PORTFOLIO                           DIVERSIFIED GROWTH FUND'S ASSETS)
                        -------------------------------------------------------------------------------------
                        <S>                                        <C>
                        SIMT Large Cap Growth                                        15-30%
                        SIMT Large Cap Value                                         15-30%
                        SIMT Small Cap Growth                                         0-15%
                        SIMT Small Cap Value                                          0-15%
                        SIT International Equity                                     10-25%
                        SIT Emerging Markets Equity                                   5-20%
                        SIMT Core Fixed Income                                        5-20%
                        SIMT High Yield Bond                                          0-15%
                        SIT International Fixed Income                                0-15%
                        SLAT Prime Obligation                                         0-30%
                        -------------------------------------------------------------------------------------
</TABLE>
 
DIVERSIFIED GLOBAL
STOCK FUND            The Diversified Global Stock Fund seeks to provide
                      long-term capital appreciation through a diversified
                      global equity strategy. In general, relative to the other
                      Funds, the Diversified Global Stock Fund should offer
                      investors the potential for a lower level of income and
                      the potential for a higher level of capital growth, while
                      subjecting investors to medium to high levels of principal
                      risk. The Fund will invest in the following Underlying
                      Portfolios within the percentage ranges set forth below:
 
<TABLE>
<CAPTION>
                                                                        INVESTMENT RANGE (PERCENT OF THE
                        UNDERLYING PORTFOLIO                        DIVERSIFIED GLOBAL STOCK FUND'S ASSETS)
                        -------------------------------------------------------------------------------------
                        <S>                                        <C>
                        SIMT Large Cap Growth                                        20-35%
                        SIMT Large Cap Value                                         20-35%
                        SIMT Small Cap Growth                                         0-15%
                        SIMT Small Cap Value                                          0-15%
                        SIT International Equity                                     15-30%
                        SIT Emerging Markets Equity                                   5-20%
                        SLAT Prime Obligation                                         0-30%
                        -------------------------------------------------------------------------------------
</TABLE>
 
DIVERSIFIED
U.S. STOCK FUND       The Diversified U.S. Stock Fund seeks to provide long-term
                      capital appreciation through a diversified domestic equity
                      strategy. Current income is an incidental consideration.
                      In general, relative to the other Funds, the Diversified
                      U.S. Stock Fund should offer investors the potential for a
                      lower level of income and the potential for a high level
                      of capital growth, while subjecting investors to a medium
 
                                        8
<PAGE>   67
 
                        to high level of principal risk. The Fund will invest in
                        the following Underlying Portfolios within the
                        percentage ranges set forth below:
 
<TABLE>
<CAPTION>
                                                                         INVESTMENT RANGE (PERCENT OF THE
                        UNDERLYING PORTFOLIO                           DIVERSIFIED U.S. STOCK FUND'S ASSETS)
                        ------------------------------------------------------------------------------------
                        <S>                                            <C>
                        SIMT Large Cap Growth                                          30-45%
                        SIMT Large Cap Value                                           30-45%
                        SIMT Small Cap Growth                                           5-20%
                        SIMT Small Cap Value                                            5-20%
                        SLAT Prime Obligation                                           0-30%
                        ------------------------------------------------------------------------------------
</TABLE>
 
GENERAL
INVESTMENT
POLICIES
OF THE FUNDS
 
                      The Funds will attempt to achieve their investment
                      objectives by purchasing shares of the Underlying
                      Portfolios within the percentage ranges set forth above.
                      The SEC has issued an exemptive order to the Trust dated
                      December 20, 1995 (the "Order"), permitting the Funds to
                      acquire up to 100% of the Shares of any of the Underlying
                      Portfolios under certain conditions. Absent this Order,
                      the Investment Company Act of 1940 (the "1940 Act") would
                      substantially limit the ability of the Funds and
                      Underlying Portfolios to engage in these transactions.
                             In addition to purchasing shares of the Underlying
                      Portfolios, the Funds may use futures contracts and
                      options in order to remain effectively fully invested in
                      proportions consistent with SFM's current asset allocation
                      strategy in an efficient and cost effective manner.
                      Specifically, each Fund may enter into futures contracts
                      and options thereon provided that the aggregate deposits
                      required on these contracts do not exceed 5% of the Fund's
                      total assets.
                             Futures contracts and options may also be used to
                      reallocate the Funds' assets among asset categories while
                      minimizing transaction costs, to maintain cash reserves
                      while simulating full investment, to facilitate trading or
                      to seek higher investment returns or simulate full
                      investment when a futures contract is priced attractively
                      or is otherwise considered more advantageous than the
                      underlying security or index. The Funds will not use
                      futures contracts or options to leverage their portfolios.
                             In order to meet liquidity needs, or for temporary
                      defensive purposes, the Funds may purchase money market
                      securities or other short-term debt instruments rated in
                      one of the top two categories by a nationally recognized
                      statistical rating organization ("NRSRO") at the time of
                      purchase or, if not rated, determined to be of comparable
                      quality by the Adviser. To the extent that a Fund is
                      engaged in temporary defensive investing, it will not be
                      pursuing its investment objective. See "Description of
                      Permitted Investments and Risk Factors of the Underlying
                      Portfolios."
 
                                        9
<PAGE>   68
 
RISK FACTORS
OF THE FUNDS
 
                      Prospective investors in the Funds should consider the
                      following risk factors:
                      - Any investment in a mutual fund involves risk and,
                        although the Funds invest in a number of Underlying
                        Portfolios, this practice does not eliminate investment
                        risk;
                      - Under certain circumstances, an Underlying Portfolio may
                        determine to make payment of a redemption request by a
                        Fund wholly or partly by a distribution in kind of
                        securities from its portfolio, instead of cash, in
                        accordance with the rules of the SEC. In such cases, the
                        Funds may hold securities distributed by an Underlying
                        Portfolio until the Adviser determines that it is
                        appropriate to dispose of such securities;
                      - Certain Underlying Portfolios may: invest a portion of
                        their assets in foreign securities; enter into forward
                        currency transactions; lend their portfolio securities;
                        enter into stock index, interest rate and currency
                        futures contracts, and options on such contracts; engage
                        in other types of options transactions; make short
                        sales; purchase zero coupon and payment-in-kind bonds;
                        and engage in various other investment practices.
                        Further information about these investment policies and
                        practices can be found under "Investment Objectives and
                        Policies of the Underlying Portfolios" and "Description
                        of Permitted Investments and Risk Factors of the
                        Underlying Portfolios" in this Prospectus and in the
                        Trust's Statement of Additional Information, and in the
                        prospectuses of each of the Underlying Portfolios;
                      - The Diversified Global Growth Fund can invest as much as
                        15% of its assets in the SIMT High Yield Bond Portfolio.
                        As a result, this Fund will be subject to the risks
                        associated with high yield investing;
                      - Certain Funds invest at least 10% and can invest as much
                        as 25% of their assets in the SIT International Fixed
                        Income Portfolio, which invests primarily in foreign
                        fixed-income securities. Certain other Funds invest at
                        least 20% and can invest as much as 50% of their assets
                        in Underlying Portfolios that invest primarily in
                        foreign equity securities. These investments will
                        subject the Funds to risks associated with investing in
                        foreign securities; and
                      - The officers and trustees of the Trust also serve as
                        officers and trustees of the Underlying Trusts. In
                        addition, the Adviser to each Fund serves as investment
                        adviser to certain of the Underlying Portfolios.
                        Conflicts may arise as these persons seek to fulfill
                        their fiduciary responsibilities at both levels.
 
                      Further information regarding these risk factors may be
                      found elsewhere in this Prospectus and in the Statement of
                      Additional Information.
 
                                       10
<PAGE>   69
 
INVESTMENT
LIMITATIONS OF
THE FUNDS
 
                      The following investment limitations are fundamental for
                      each Fund, and may not be changed without shareholder
                      approval.
                      1. Each Fund will concentrate its investments in mutual
                         fund shares.
                      2. Each Fund may borrow money in an amount up to 33 1/3%
                         of the value of its total assets, provided that, for
                         purposes of this limitation, investment strategies
                         which either obligate a Fund to purchase securities or
                         require a Fund to segregate assets are not considered
                         to be borrowings. Except where a Fund has borrowed
                         money for temporary purposes in amounts not exceeding
                         5% of its assets, asset coverage of 300% is required
                         for all borrowings.
 
                      Each Fund is subject to further fundamental and
                      non-fundamental limitations which are described in the
                      Trust's Statement of Additional Information.
 
PORTFOLIO TURNOVER
OF THE FUNDS
 
                      Each Fund's portfolio turnover rate (i.e., the rate at
                      which the Fund buys and sells shares of the Underlying
                      Portfolios) is not expected to exceed 10%. Asset
                      reallocation decisions typically will occur only once
                      every quarter. However, if market conditions warrant, SFM
                      may make more frequent reallocation decisions, which will
                      result in a higher portfolio turnover rate. The Funds will
                      purchase or sell shares of the Underlying Portfolios: (a)
                      to accommodate purchases and redemptions of each Fund's
                      shares; (b) in response to market or other economic
                      conditions; and (c) to maintain or modify the allocation
                      of each Fund's assets among the Underlying Portfolios
                      within the percentage limits described above or as altered
                      by SFM from time to time. It is important to note,
                      however, that the portfolio turnover rate of certain of
                      the Underlying Portfolios (i.e., the rate at which the
                      Underlying Portfolios buy and sell securities), may exceed
                      100%. Such a turnover rate may result in higher
                      transaction costs and may result in additional tax
                      consequences for shareholders (including the Funds).
 
                                       11
<PAGE>   70
 
INVESTMENT GOALS
OF THE UNDERLYING
PORTFOLIOS
 
                      The following table describes the investment goal of each
                      Underlying Portfolio:
 
<TABLE>
<CAPTION>
                        UNDERLYING PORTFOLIO                 INVESTMENT GOAL
                        -----------------------------------------------------------------------------
                        <S>                                  <C>
                        SIMT Large Cap Growth                Growth of Capital
                        SIMT Large Cap Value                 Growth of Capital and Income
                        SIMT Small Cap Growth                Aggressive Growth of Capital
                        SIMT Small Cap Value                 Aggressive Growth of Capital and Income
                        SIT International Equity             Growth of Capital
                        SIT Emerging Markets Equity          Aggressive Growth of Capital
                        SIMT Core Fixed Income               Income
                        SIMT High Yield Bond                 Aggressive Income
                        SIT International Fixed Income       Income
                        SLAT Prime Obligation                Price Stability
                        -----------------------------------------------------------------------------
</TABLE>
 
INVESTMENT
OBJECTIVES AND
POLICIES OF THE
UNDERLYING
PORTFOLIOS
 
                      Set forth below are the investment objectives and policies
                      that apply to the Underlying Portfolios. The investment
                      objective of each Underlying Portfolio is a fundamental
                      policy of that Portfolio, and may not be changed without
                      approval of such Portfolio's shareholders, which may
                      include the Fund. Certain general investment policies that
                      apply to two or more of the Underlying Portfolios are set
                      forth in the "General Investment Policies of the
                      Underlying Portfolios" section, below. There can be no
                      assurance that the Underlying Portfolios will achieve
                      their respective investment objectives. For additional
                      information regarding the investments and investment
                      techniques of the Underlying Portfolios, as well as the
                      risk factors attendant with those investments and
                      investment techniques, please see the "Description of
                      Permitted Investments and Risk Factors of the Underlying
                      Portfolios" section of this Prospectus.
 
SIMT LARGE CAP
GROWTH PORTFOLIO      The SIMT Large Cap Growth Portfolio seeks to provide
                      capital appreciation. Under normal market conditions, the
                      Portfolio will invest at least 65% of its total assets in
                      equity securities of large companies (i.e., companies with
                      market capitalizations of more than $1 billion) which, in
                      the advisers' opinion, possess significant growth
                      potential. Any remaining assets may be invested in fixed
                      income securities or in equity securities of smaller
                      companies that the Portfolio's advisers believe are
 
                                       12
<PAGE>   71
 
                      appropriate in light of the Portfolio's objective. Equity
                      securities include common stock, preferred stock, warrants
                      or rights to subscribe to common stock and, in general,
                      any security that is convertible into or exchangeable for
                      common stock. Fixed income securities must be rated
                      investment grade or better, i.e., rated at least BBB by
                      Standard & Poor's Corporation ("S&P") or Baa by Moody's
                      Investors Service, Inc. ("Moody's").
 
SIMT LARGE CAP
VALUE PORTFOLIO       The SIMT Large Cap Value Portfolio seeks to provide
                      long-term growth of capital and income. Under normal
                      market conditions, the Portfolio will invest at least 65%
                      of its total assets in a diversified portfolio of high
                      quality, income-producing common stocks of large companies
                      (i.e., companies with market capitalizations of more than
                      $1 billion) which, in the advisers' opinion, are
                      undervalued in the marketplace at the time of purchase. In
                      general, the advisers characterize high quality securities
                      as those that have above-average reinvestment rates. The
                      advisers also consider other factors, such as earnings and
                      dividend growth prospects as well as industry outlook and
                      market share. Equity securities include common stock,
                      preferred stock, warrants or rights to subscribe to common
                      stock and, in general, any security that is convertible
                      into or exchangeable for common stock. Any remaining
                      assets may be invested in investment grade fixed income
                      securities.
 
SIMT SMALL CAP
GROWTH PORTFOLIO      The SIMT Small Cap Growth Portfolio seeks to provide
                      long-term capital appreciation. Under normal market
                      conditions, the Portfolio will invest at least 65% of its
                      total assets in the equity securities of smaller growth
                      companies (i.e., companies with market capitalizations of
                      less than $1 billion) which, in the advisers' opinion, are
                      in an early stage or transitional point in their
                      development and have demonstrated or have the potential
                      for above average capital growth. The advisers will select
                      companies that have the potential to gain market share in
                      their industry, achieve and maintain high and consistent
                      profitability or produce increases in earnings. The
                      advisers also seek companies with strong company
                      management and superior fundamental strength.
                             Small capitalization companies have the potential
                      to show earnings growth over time that is well above the
                      growth rate of the overall economy. Any remaining assets
                      may be invested in the equity securities of more
                      established companies that the advisers believe may offer
                      strong capital appreciation potential due to their
                      relative market position, anticipated earnings growth,
                      changes in management or other similar opportunities.
                      Equity securities include common stock, preferred stock,
                      warrants and rights to subscribe to common stock and, in
                      general, any security that is convertible into or
                      exchangeable for common stock.
                             In order to meet liquidity needs, or for temporary
                      defensive purposes, the Portfolio may invest all or a
                      portion of its assets in common stocks of larger, more
                      established companies, fixed income securities, cash or
                      money market securities. Fixed income securities will only
                      be purchased if they are rated investment grade or
 
                                       13
<PAGE>   72
 
                      better. Investment grade bonds include securities rated at
                      least BBB by S&P or Baa by Moody's. Money market
                      securities will only be purchased if they have been given
                      one of the two top ratings by a nationally recognized
                      statistical rating organization ("NRSRO"), or if not
                      rated, determined to be of comparable quality by the
                      Portfolio's advisers.
 
SIMT SMALL CAP
VALUE PORTFOLIO       The SIMT Small Cap Value Portfolio seeks to provide
                      capital appreciation. Under normal market conditions, the
                      Portfolio will invest at least 65% of its total assets in
                      the equity securities of smaller companies (i.e.,
                      companies with market capitalizations of less than $1
                      billion) which, in the advisers' opinion, have prices that
                      appear low relative to certain fundamental characteristics
                      such as earnings, book value, or return on equity. Any
                      remaining assets may be invested in fixed income
                      securities or equity securities of larger, more
                      established companies that the Portfolio's advisers
                      believe are appropriate in light of the Portfolio's
                      objective. Equity securities include common stock,
                      preferred stock, warrants and rights to subscribe to
                      common stock and, in general, any security that is
                      convertible into or exchangeable for common stock. Fixed
                      income securities must be rated investment grade or
                      better, i.e., rated at least BBB by S&P or Baa by Moody's.
 
SIT INTERNATIONAL
EQUITY PORTFOLIO      The SIT International Equity Portfolio seeks to provide
                      long-term capital appreciation by investing primarily in a
                      diversified portfolio of equity securities of non-U.S.
                      issuers. Under normal circumstances, at least 65% of the
                      Portfolio's assets will be invested in equity securities
                      of non-U.S. issuers located in at least three countries
                      other than the United States. The Portfolio may enter into
                      forward foreign currency contracts as a hedge against
                      possible variations in foreign exchange rates. A forward
                      foreign currency contract is a commitment to purchase or
                      sell a specified currency, at a specified future date, at
                      a specified price. The Portfolio may enter into forward
                      foreign currency contracts to hedge a specific security
                      transaction or to hedge a portfolio position. These
                      contracts may be bought or sold to protect the Portfolio,
                      to some degree, against a possible loss resulting from an
                      adverse change in the relationship between foreign
                      currencies and the U.S. dollar. The Portfolio may also
                      invest in options on currencies.
                             Securities of non-U.S. issuers purchased by the
                      Portfolio may be purchased in foreign markets, on U.S.
                      registered exchanges, the over-the-counter market or in
                      the form of sponsored or unsponsored American Depositary
                      Receipts ("ADRs") traded on registered exchanges or NASDAQ
                      or sponsored or unsponsored European Depositary Receipts
                      ("EDRs"), Continental Depositary Receipts ("CDRs") or
                      Global Depositary Receipts ("GDRs"). The Portfolio will
                      typically invest in equity securities listed on recognized
                      foreign exchanges, but may also invest in securities
                      traded in over-the-counter markets. The Portfolio expects
                      its investments to emphasize both large and intermediate
                      capitalization companies.
 
                                       14
<PAGE>   73
 
                             The Portfolio expects to be fully invested in its
                      primary investments described above, but may invest up to
                      35% of its total assets in U.S. or non-U.S. cash reserves;
                      money market instruments; swaps; options on securities,
                      non-U.S. indices and currencies; futures contracts,
                      including stock index futures contracts; and options on
                      futures contracts.
                             Permissible money market instruments include
                      securities issued or guaranteed by the United States
                      Government, its agencies or instrumentalities; securities
                      issued or guaranteed by non-U.S. governments, which are
                      rated at time of purchase A or higher by S&P or Moody's,
                      or are determined by the advisers to be of comparable
                      quality; repurchase agreements; certificates of deposit
                      and bankers' acceptances issued by banks or savings and
                      loan associations having net assets of at least $500
                      million as of the end of their most recent fiscal year;
                      high-grade commercial paper; and other long- and
                      short-term debt instruments which are rated at the time of
                      purchase A or higher by S&P or Moody's and which, with
                      respect to such long-term debt instruments, are within 397
                      days of their maturity.
                             The Portfolio is also permitted to acquire floating
                      and variable rate securities, and purchase securities on a
                      when-issued or delayed delivery basis. Although permitted
                      to do so, the Portfolio does not currently intend to
                      invest in securities issued by passive foreign investment
                      companies or to engage in securities lending.
                             For temporary defensive purposes, when an adviser
                      determines that market conditions warrant, the Portfolio
                      may invest up to 50% of its assets in the U.S. and
                      non-U.S. money market instruments described above and
                      other U.S. and non-U.S. long- and short-term debt
                      instruments which are rated BBB or higher by S&P or Baa or
                      higher by Moody's at the time of purchase, or are
                      determined by the adviser to be of comparable quality; may
                      hold a portion of such assets in cash; and may invest in
                      securities of supranational entities which are rated A or
                      higher by S&P or Moody's at the time of purchase, or are
                      determined by the adviser to be of comparable quality.
 
SIT EMERGING
MARKETS EQUITY
PORTFOLIO             The SIT Emerging Markets Equity Portfolio seeks to provide
                      capital appreciation by investing primarily in a
                      diversified portfolio of equity securities of emerging
                      market issuers. Under normal circumstances, at least 65%
                      of the Portfolio's assets will be invested in equity
                      securities of emerging market issuers. Under normal market
                      conditions, the Portfolio maintains investments in at
                      least six emerging market countries and does not invest
                      more than 35% of its total assets in any one emerging
                      market country. For these purposes, the Portfolio defines
                      an emerging market country as any country the economy and
                      market of which the World Bank or the United Nations
                      considers to be emerging or developing. The Portfolio's
                      advisers consider emerging market issuers to be companies
                      the securities of which are principally traded in the
                      capital markets of emerging market countries: that
 
                                       15
<PAGE>   74
 
                      derive at least 50% of their total revenue from either
                      goods produced or services rendered in emerging market
                      countries, regardless of where the securities of such
                      companies are principally traded; or that are organized
                      under the laws of and have a principal office in an
                      emerging market country. In addition to its primary
                      investments, described above, the Portfolio may invest up
                      to 35% of its total assets in debt securities, including
                      up to 5% of its total assets in debt securities rated
                      below investment grade. These debt securities will include
                      debt securities of emerging market companies. Bonds rated
                      below investment grade are often referred to as "junk
                      bonds." Such securities involve greater risk of default or
                      price declines than investment grade securities.

                             The Portfolio may invest in certain debt securities
                      issued by the governments of emerging market countries
                      that are or may be eligible for conversion into
                      investments in emerging market companies under debt
                      conversion programs sponsored by such governments.
                             The Portfolio may invest in futures contracts and
                      purchase securities on a when-issued or delayed delivery
                      basis. The Portfolio may also purchase and write options
                      to buy or sell futures contracts.
                             For temporary defensive purposes, when an adviser
                      determines that market conditions warrant, the Portfolio
                      may invest up to 20% of its total assets in the equity
                      securities of companies constituting the Morgan Stanley
                      Capital International Europe, Australia, Far East Index
                      (the "EAFE Index"). These companies typically have larger
                      average market capitalizations than the emerging market
                      companies in which the Portfolio generally invests.
                             The SIT Emerging Markets Equity Portfolio uses a
                      proprietary, quantitative asset allocation model. This
                      model employs mean-variance optimization, a process used
                      in developed markets based on modern portfolio theory and
                      statistics. Mean-variance optimization helps determine the
                      percentage of assets to invest in each country to maximize
                      expected returns for a given risk level. The Portfolio
                      invests in those countries that the advisers expect to
                      have the highest risk/reward tradeoff when incorporated
                      into a total portfolio context. The advisers attempt to
                      construct a portfolio of emerging market investments that
                      approximates the risk level of an internationally
                      diversified portfolio of securities in developed markets.
                      This "top-down" country selection is combined with
                      "bottom-up" fundamental industry analysis and stock
                      selection based on original research, publicly available
                      information, and company visits.
                             The Portfolio's investments in emerging markets can
                      be considered speculative, and therefore may offer higher
                      potential for gains and losses than developed markets of
                      the world. With respect to any emerging country, there is
                      the greater potential for nationalization, expropriation
                      or confiscatory taxation, political changes, government
                      regulation, social instability or diplomatic developments
                      (including war) which could affect adversely the economies
                      of such countries or
 
                                       16
<PAGE>   75
 
                      investments in such countries. The economies of developing
                      countries generally are heavily dependent upon
                      international trade and, accordingly, have been and may
                      continue to be adversely affected by trade barriers,
                      exchange controls, managed adjustments in relative
                      currency values and other protectionist measures imposed
                      or negotiated by the countries with which they trade.
 
SIMT CORE FIXED
INCOME PORTFOLIO      The SIMT Core Fixed Income Portfolio seeks to provide
                      current income consistent with the preservation of
                      capital. Under normal market conditions, the Portfolio
                      will invest at least 65% of its total assets in fixed
                      income securities that are rated investment grade or
                      better, i.e., rated in one of the four highest rating
                      categories by an NRSRO at the time of purchase, or, if not
                      rated, determined to be of comparable quality by the
                      advisers. Fixed income securities in which the Portfolio
                      may invest consist of: (i) corporate bonds and debentures;
                      (ii) obligations issued by the United States Government,
                      its agencies and instrumentalities; (iii) municipal
                      securities of issuers located in all fifty states, the
                      District of Columbia, Puerto Rico and other U.S.
                      territories and possessions, consisting of municipal bond,
                      municipal notes, tax-exempt commercial paper and municipal
                      lease obligations; (iv) receipts involving U.S. Treasury
                      obligations; (v) mortgage-backed securities; (vi)
                      asset-backed securities; and (vii) zero coupon, 
                      pay-in-kind or deferred payment securities.
                             Any remaining assets may be invested in: (i)
                      interest-only and principal-only components of
                      mortgage-backed securities; (ii) mortgage dollar rolls;
                      (iii) securities issued on a when-issued and
                      delayed-delivery basis, including TBA mortgage-backed
                      securities; (iv) warrants; (v) money market securities;
                      and (vi) Yankee obligations. In addition, the Portfolio
                      may purchase or write options, futures (including futures
                      on U.S. Treasury obligations and Eurodollar instruments)
                      and options on futures.
                             Duration is a measure of the expected life of a
                      fixed income security on a cash flow basis. Most debt
                      obligations provide interest payments and a final payment
                      at maturity. Some also have put or call provisions that
                      allow the security to be redeemed at specified dates prior
                      to maturity. Duration incorporates yield, coupon interest
                      payments, final maturity and call features into a single
                      measure. The advisers therefore consider it a more
                      accurate measure of a security's expected life and
                      sensitivity to interest rate changes than is the
                      security's term to maturity.
                             The Portfolio invests in a portfolio with a
                      dollar-weighted average duration that will, under normal
                      market conditions, stay within plus or minus 20% of what
                      the advisers believe to be the average duration of the
                      domestic bond market as a whole. The advisers base their
                      analysis of the average duration of the domestic bond
                      market on bond market indices which they believe to be
                      representative. The advisers currently use the Lehman
                      Aggregate Bond Index for this purpose.
 
SIMT HIGH YIELD
BOND PORTFOLIO        The SIMT High Yield Bond Portfolio seeks to maximize total
                      return. Under normal market conditions, the Portfolio will
                      invest at least 65% of its total assets in fixed-income
                      securities that are rated below investment grade (i.e.,
                      rated below the top
 
                                       17
<PAGE>   76
 
                      four rating categories by an NRSRO at the time of
                      purchase), or, if not rated, are determined to be of
                      comparable quality by the Portfolio's advisers. Below
                      investment grade securities are commonly referred to as
                      "junk bonds," and generally entail increased credit and
                      market risk. The achievement of the Portfolio's investment
                      objective may be more dependent on the advisers' own
                      credit analysis than would be the case if the Portfolio
                      invested in higher rated securities. There is no bottom
                      limit on the ratings of high yield securities that may be
                      purchased or held by the Portfolio.

                             The Portfolio may invest in all types of fixed
                      income securities issued by domestic and foreign issuers,
                      including: (i) mortgage-backed securities; (ii) asset-
                      backed securities; (iii) zero coupon, pay-in-kind or
                      deferred payment securities; and (iv) variable and
                      floating rate instruments.
                             Any assets of the Portfolio not invested in the
                      fixed income securities described above may be invested
                      in: (i) convertible securities; (ii) preferred stocks;
                      (iii) equity securities; (iv) investment grade fixed
                      income securities; (v) money market securities; (vi)
                      securities issued on a when-issued and delayed-delivery
                      basis, including TBA mortgage-backed securities; (vii)
                      forward foreign currency contracts; and (viii) Yankee
                      obligations. In addition, the Portfolio may purchase or
                      write options, futures and options on futures. The
                      advisers may vary the average maturity of the securities
                      in the Portfolio without limit, and there is no
                      restriction on the maturity of any individual security.
                             The securities purchased by the Portfolio may be
                      rated in the lowest rating category for fixed income
                      securities. Bonds rated C by Moody's are the lowest rated
                      class of bonds, and issues so rated can be regarded as
                      having extremely poor prospects of ever attaining any real
                      investment standing. Bonds are rated D by S&P when the
                      issue is in payment default, or the obligor has filed for
                      bankruptcy. The D rating is used when interest or
                      principal payments are not made on the date due, even if
                      the applicable grace period has not expired, unless S&P
                      believes that such payments will be made during such grace
                      period. The ratings established by each NRSRO represents
                      its opinions of the safety of principal and interest
                      payments (and not the market risk) of bonds and other debt
                      securities they undertake to rate at the time of issuance.
                      Ratings are not absolute standards of quality and may not
                      reflect changes in an issuer's creditworthiness.
                      Accordingly, although the Portfolio's advisers will
                      consider ratings, they will perform their own analyses and
                      will not rely principally on ratings. The advisers will
                      consider, among other things, the price of the security
                      and the financial history and condition, the prospects and
                      the management of an issuer in selecting securities for
                      the Portfolio.
                             RISK FACTORS RELATING TO INVESTING IN LOWER RATED
                      SECURITIES-- Fixed income securities are subject to the
                      risk of an issuer's ability to meet principal and interest
                      payments on the obligation (credit risk), and may also be
                      subject to price volatility due to such factors as
                      interest rate sensitivity, market perception of
 
                                       18
<PAGE>   77
 
                      the creditworthiness of the issuer and general market
                      liquidity (market risk). Lower rated or unrated (i.e.,
                      high yield) securities are more likely to react to
                      developments affecting market and credit risk than are
                      more highly rated securities, which primarily react to
                      movements in the general level of interest rates. The
                      market values of fixed-income securities tend to vary
                      inversely with the level of interest rates. Yields and
                      market values of high yield securities will fluctuate over
                      time, reflecting not only changing interest rates but the
                      market's perception of credit quality and the outlook for
                      economic growth. When economic conditions appear to be
                      deteriorating, medium to lower rated securities may
                      decline in value due to heightened concern over credit
                      quality, regardless of the prevailing interest rates.
                      Investors should carefully consider the relative risks of
                      investing in high yield securities and understand that
                      such securities are not generally meant for short-term
                      investing.

                             The high yield market is relatively new and its
                      growth has paralleled a long period of economic expansion
                      and an increase in merger, acquisition and leveraged
                      buyout activity. Adverse economic developments can disrupt
                      the market for high yield securities, and severely affect
                      the ability of issuers, especially highly leveraged
                      issuers, to service their debt obligations or to repay
                      their obligations upon maturity which may lead to a higher
                      incidence of default on such securities. In addition, the
                      secondary market for high yield securities, which is
                      concentrated in relatively few market makers, may not be
                      as liquid as the secondary market for more highly rated
                      securities. As a result, the Portfolio could find it more
                      difficult to sell these securities or may be able to sell
                      the securities only at prices lower than if such
                      securities were widely traded. Furthermore, the Portfolio
                      may experience difficulty in valuing certain securities at
                      certain times. Prices realized upon the sale of such lower
                      rated or unrated securities, under these circumstances,
                      may be less than the prices used in calculating the
                      Portfolio's net asset value.
                             Lower rated debt obligations also present risks
                      based on payment expectations. If an issuer calls an
                      obligation for redemption, the Portfolio may have to
                      replace the security with a lower yielding security,
                      resulting in a decreased return for investors. If the
                      Portfolio experiences unexpected net redemptions, it may
                      be forced to sell its higher rated securities, resulting
                      in a decline in the overall credit quality of the
                      Portfolio's investment portfolio and increasing the
                      exposure of the Portfolio to the risks of high yield
                      securities.
 
SIT INTERNATIONAL
FIXED INCOME
PORTFOLIO             The SIT International Fixed Income Portfolio seeks to
                      provide capital appreciation and current income through
                      investment primarily in high quality, non-U.S. dollar
                      denominated government and corporate fixed income
                      securities or debt obligations. Under normal
                      circumstances, at least 65% of the Portfolio's assets will
                      be invested in high quality foreign government and foreign
                      corporate fixed income securities or
 
                                       19
<PAGE>   78
 
                      debt obligations of issuers located in at least three
                      countries other than the United States.

                             The fixed income securities in which the SIT
                      International Fixed Income Portfolio may invest are: (i)
                      fixed income securities issued or guaranteed by a foreign
                      government or one of its agencies, authorities,
                      instrumentalities or political subdivisions; (ii) fixed
                      income securities issued or guaranteed by supranational
                      entities; (iii) fixed income securities issued by foreign
                      corporations; (iv) convertible securities; and (v) fixed
                      income securities issued by foreign banks or bank holding
                      companies. All such investments will be in high quality
                      securities denominated in various currencies, including
                      the European Currency Unit. High quality securities are
                      rated in one of the highest four rating categories by an
                      NRSRO or, of comparable quality at the time of purchase as
                      determined by the adviser.
                             Any remaining assets of the Portfolio will be
                      invested in any of the fixed income securities described
                      above, obligations issued or guaranteed as to principal
                      and interest by the United States Government, its agencies
                      or instrumentalities ("U.S. Government Securities"),
                      swaps, options and futures. The Portfolio may also
                      purchase and write options to buy or sell futures
                      contracts. The Portfolio also may enter into forward
                      currency contracts, purchase securities on a when-issued
                      or delayed delivery basis and engage in short selling.
                      Furthermore, although the Portfolio will concentrate its
                      investments in relatively developed countries, the
                      Portfolio may invest up to 5% of its assets in similar
                      securities or debt obligations that are denominated in the
                      currencies of developing countries and that are of
                      comparable quality to such securities and debt obligations
                      at the time of purchase as determined by the adviser.
                             There are no restrictions on the average maturity
                      of the securities held by the Portfolio or the maturity of
                      any single instrument. Maturities may vary widely
                      depending on the adviser's assessment of interest rate
                      trends and other economic and market factors. In the event
                      a security owned by the Portfolio is downgraded below the
                      rating categories discussed above, the adviser will review
                      the situation and take appropriate action with regard to
                      the security.
                             The Portfolio is a non-diversified investment
                      company, as defined in the 1940 Act, which means that more
                      than 5% of its assets may be invested in one or more
                      issuers, although the adviser does not intend to invest
                      more than 5% of its assets in any single issuer with the
                      exception of securities which are issued or guaranteed by
                      a national government. The value of shares of the
                      Portfolio may be more susceptible to any single economic,
                      political or regulatory occurrence than the shares of a
                      diversified investment company would be. The Portfolio
                      intends to satisfy the diversification requirements
                      necessary to qualify as a regulated investment company
                      under the Internal Revenue Code of 1986, as amended (the
                      "Code").
 
                                       20
<PAGE>   79
 
                             For temporary defensive purposes, when an adviser
                      determines that market conditions warrant, the Portfolio
                      may invest up to 100% of its assets in U.S. dollar
                      denominated fixed income securities and the following
                      domestic and foreign money market instruments: government
                      obligations, certificates of deposit, bankers'
                      acceptances, time deposits, commercial paper, short-term
                      corporate debt issues and repurchase agreements. The
                      Portfolio may hold a portion of its assets in cash for
                      liquidity purposes.
 
SLAT PRIME
OBLIGATION PORTFOLIO  The SLAT Prime Obligation Portfolio seeks to preserve
                      principal value and maintain a high degree of liquidity
                      while providing current income. The Portfolio invests
                      exclusively in: (i) commercial paper rated at least A-1 by
                      S&P or Prime-1 by Moody's at the time of investment or, if
                      not rated, determined by the Adviser to be of comparable
                      quality; (ii) obligations (including certificates of
                      deposit, time deposits, bankers' acceptances and bank
                      notes) of U.S. commercial banks and other institutions
                      that are members of the Federal Reserve System or are
                      insured by the Federal Deposit Insurance Corporation,
                      which banks or institutions have total assets of $500
                      million or more as shown on their most recent public
                      financial statements at the time of investment, provided
                      that such obligations are rated in the top two short-term
                      rating categories by two or more NRSROs, or one NRSRO if
                      only one NRSRO has rated the security at the time of
                      investment or, if not rated, determined by the adviser to
                      be of comparable quality; (iii) short-term corporate
                      obligations rated AAA or AA by S&P or Aaa or Aa by Moody's
                      at the time of investment or, if not rated, determined by
                      the adviser to be of comparable quality; (iv) short-term
                      obligations issued by state and local governmental
                      issuers, which are rated, at the time of investment, by at
                      least two NRSROs in one of the two highest municipal bond
                      rating categories, and which carry yields that are
                      competitive with those of other types of money market
                      instruments of comparable quality; (v) U.S. Treasury
                      obligations or obligations issued or guaranteed as to
                      principal and interest by agencies or instrumentalities of
                      the U.S. Government; and (vi) repurchase agreements
                      involving any of the foregoing obligations.
                             The Portfolio may invest up to 10% of its net
                      assets in illiquid securities. However, restricted
                      securities, including Rule 144A Securities and Section
                      4(2) commercial paper, that meet the criteria established
                      by the Board of Trustees of the Trust may be considered
                      liquid.
                             The Portfolio may only purchase securities with a
                      remaining maturity of 365 days or less, and, as a matter
                      of non-fundamental policy, will maintain a dollar-weighted
                      average portfolio maturity of 90 days or less. An
                      investment in the Portfolio is neither insured or
                      guaranteed by the U.S. Government and there can be no
                      assurance that the Portfolio will be able to maintain a
                      stable net asset value of $1.00 per share.
 
                                       21
<PAGE>   80
 
GENERAL
INVESTMENT
POLICIES OF THE
UNDERLYING
PORTFOLIOS

Borrowing             Each Underlying Portfolio, except the SLAT Prime
                      Obligation Portfolio, may borrow money to meet redemptions
                      or for temporary or emergency purposes. An Underlying
                      Portfolio will not purchase securities while its
                      borrowings exceed 5% of its total assets.
 
Common Stocks         Each Underlying Portfolio, except the SLAT Prime
                      Obligation, SIMT Core Fixed Income, SIMT High Yield Bond
                      and SIT International Fixed Income Portfolios, will invest
                      in common stocks; provided, however, that the Underlying
                      Portfolios may only invest in such securities if they are
                      listed on registered exchanges or actively traded in the
                      over-the-counter market.
 
Forward Foreign
Currency Contracts    The Underlying Portfolios, except the SIMT Core Fixed
                      Income, SIMT Large Cap Growth, SIMT Small Cap Growth, SIMT
                      Large Cap Value, SIMT Small Cap Value, and SLAT Prime
                      Obligation Portfolios may purchase forward foreign
                      currency contracts.
 
Illiquid Securities   Each Underlying Portfolio's investment in illiquid
                      securities will be limited to 15% of its net assets (10%
                      with respect to the SLAT Prime Obligation, SIT
                      International Equity, SIT Emerging Markets Equity, and SIT
                      International Fixed Income Portfolios).
 
Investment Company
Securities            Each Underlying Portfolio, except the SLAT Prime
                      Obligation Portfolio, may purchase investment company
                      securities, which will result in additional layering of
                      expenses. However, there are legal limits on the amount of
                      such securities that may be acquired by an Underlying
                      Portfolio. As a condition to the Order that was granted to
                      the Trust by the SEC, no Underlying Portfolio in which a
                      Fund invests may purchase: (i) more than 3 percent of the
                      total outstanding voting securities of another registered
                      investment company; (ii) securities issued by such
                      investment company if such securities have an aggregate
                      value of more than 5 percent of the total assets of such
                      Underlying Portfolio; or (iii) securities issued by such
                      investment company and all other investment companies if
                      such securities have an aggregate value of more than 10
                      percent of the total assets of such Underlying Portfolio.
 
Investment Grade
Debt Securities       Each Underlying Portfolio, except the SLAT Prime
                      Obligation Portfolio, may invest in investment grade debt
                      securities. Interest payments and principal security for
                      securities rated in the fourth highest rating category
                      (i.e., BBB by S&P or Baa by Moody's) appear adequate for
                      the present, but certain protective elements may be
                      lacking or may be characteristically unreliable over any
                      great length of time. Such
 
                                       22
<PAGE>   81
 
                      securities lack outstanding investment characteristics and
                      in fact have speculative characteristics as well.
 
Money Market
Instruments           In order to meet liquidity needs or for temporary
                      defensive purposes, the Underlying Portfolios may hold
                      cash reserves and invest in money market instruments
                      (including securities issued or guaranteed by the U.S.
                      Government, its agencies or instrumentalities, repurchase
                      agreements, certificates of deposit and bankers'
                      acceptances issued by banks or savings and loan
                      associations having net assets of at least $500 million as
                      of the end of their most recent fiscal year, high-grade
                      commercial paper and other short-term debt securities)
                      rated at the time of purchase in the top two categories by
                      an NRSRO, or, if not rated, determined by the adviser to
                      be of comparable quality at the time of purchase. To the
                      extent any Underlying Portfolio is engaged in temporary
                      defensive investing, it will not be pursuing its
                      investment objective.
 
Options and Futures   Each Underlying Portfolio, except the SLAT Prime
                      Obligation Portfolio, may purchase or sell options,
                      futures and options on futures. Risks associated with
                      investing in options and futures may include lack of a
                      liquid secondary market, trading restrictions which may be
                      imposed by an exchange and government regulations which
                      may restrict trading.
 
Securities Lending    Each Underlying Portfolio, except the SLAT Prime
                      Obligation Portfolio, may lend its securities to qualified
                      investors for the purpose of realizing additional income.
 
U.S. Dollar Denominated
Securities of Foreign
Issuers               Each Underlying Portfolio, except the SLAT Prime
                      Obligation, SIMT Small Cap Growth, and SIMT Core Fixed
                      Income Portfolios, may invest in U.S. dollar denominated
                      securities of foreign issuers, including American
                      Depositary Receipts that are traded on registered
                      exchanges or listed on NASDAQ.
 
Warrants              Consistent with any applicable state law limitations, each
                      Underlying Portfolio, except the SLAT Prime Obligation
                      Portfolio, may purchase warrants in order to increase
                      total return.
 
When-Issued and Delayed
Delivery Securities   The Underlying Portfolios may purchase securities on a
                      when-issued or delayed-delivery basis.
 
                             For additional information regarding the permitted
                      investments of the Underlying Portfolios see the
                      "Description of Permitted Investments and Risk Factors of
                      the Underlying Portfolios" in this Prospectus, the Trust's
                      Statement of Additional Information, the "Description of
                      Permitted Investments and Risk Factors" in the Underlying
                      Portfolios' Prospectuses and the "Description of Permitted
                      Investments" in the Underlying Portfolios' Statements of
                      Additional Information.
 
                                       23
<PAGE>   82
 
RISK FACTORS OF
THE UNDERLYING
PORTFOLIOS
                      From time to time, the Underlying Portfolios may
                      experience relatively large purchases or redemptions due
                      to asset allocation decisions made by the Adviser for its
                      clients, including the Trust. These transactions may have
                      a material effect on the Underlying Portfolios, since
                      Underlying Portfolios that experience redemptions as a
                      result of reallocations may have to sell portfolio
                      securities and because Underlying Portfolios that receive
                      additional cash will have to invest it. While it is
                      impossible to predict the overall impact of these
                      transactions over time, there could be adverse effects on
                      portfolio management to the extent that Underlying
                      Portfolios may be required to sell securities at times
                      when they would not otherwise do so, or receive cash that
                      cannot be invested in an expeditious manner. There may be
                      tax consequences associated with purchases and sales of
                      securities, and such sales may also increase transaction
                      costs. The Adviser is committed to minimizing the impact
                      of these transactions on the Underlying Portfolios to the
                      extent it is consistent with pursuing the investment
                      objectives of its asset allocation clients. The Adviser
                      will monitor the impact of asset allocation decisions on
                      the Underlying Portfolios and, where practicable, a Fund
                      will, at any one time, only redeem shares of an Underlying
                      Portfolio to reduce its allocation to that particular
                      Portfolio in increments of up to 5% (e.g., from 20% to
                      15%), except where such redemptions are to meet Fund
                      shareholder redemption requests. The Adviser will
                      nevertheless face conflicts in fulfilling its
                      responsibilities because of the possible differences
                      between the interests of its asset allocation clients
                      (including shareholders of the Funds) and the interests of
                      the Underlying Portfolios.
 
FUNDAMENTAL
LIMITATIONS OF
THE UNDERLYING
PORTFOLIOS
                      Each Underlying Portfolio, except the SIT International
                      Fixed Income Fund, may not invest more than 5% of its
                      assets in the securities of a single issuer. (This
                      limitation applies to 75% of the assets of the SIMT and
                      the other SIT Portfolios, and does not apply to securities
                      issued by the U.S. Government, its agencies or
                      instrumentalities.)
                             Each Underlying Portfolio may not purchase
                      securities which would cause more than 25% of such
                      Portfolio's assets to be invested in the securities of
                      issuers conducting business in the same industry. (This
                      limitation does not apply to investments in securities
                      issued by the U.S. Government, its agencies or
 
                                       24
<PAGE>   83
 
                      instrumentalities and, with respect to the SLAT Prime
                      Obligation Portfolio, obligations of domestic banks.)

                             The foregoing percentage limitations will apply at
                      the time of the purchase of the security by an Underlying
                      Portfolio. Additional fundamental and non-fundamental
                      investment limitations are set forth in the Underlying
                      Portfolios' Prospectuses and Statements of Additional
                      Information.
 
THE ADVISER AND
MANAGER OF
THE FUNDS
                      Under an Investment Advisory Agreement with the Trust, SEI
                      Financial Management Corporation ("SFM" or the "Adviser")
                      acts as the investment adviser to each Fund. Under the
                      Agreement, the Adviser provides its proprietary asset
                      allocation services to the Funds, and exercises investment
                      discretion over the assets of the Funds. The Adviser
                      monitors the allocation of each Fund's assets, and is
                      responsible for supervising compliance with each Fund's
                      fundamental investment objective and policies. Although it
                      is expected that each Fund will typically be fully
                      invested in the Underlying Portfolios, the Adviser may,
                      from time to time, direct the investment of each Fund's
                      cash balances in money market securities or in other
                      instruments, including stock or bond index futures and
                      options thereon.
                             For its investment advisory services to the Trust,
                      the Adviser is entitled to a fee, which is calculated
                      daily and paid monthly, at an annual rate of .10% of each
                      Fund's average daily net assets. The Adviser has
                      voluntarily agreed to waive this fee for the foreseeable
                      future. This waiver may be terminated by the Adviser at
                      any time in its sole discretion.
                             The Adviser is a wholly-owned subsidiary of SEI
                      Corporation ("SEI"), a financial services company located
                      in Wayne, Pennsylvania. The principal business address of
                      the Adviser is 680 East Swedesford Road, Wayne,
                      Pennsylvania 19087-1658. SEI was founded in 1968, and is a
                      leading provider of investment solutions to banks,
                      institutional investors, investment advisers and insurance
                      companies. Affiliates of the Adviser have provided
                      consulting advice to institutional investors for more than
                      20 years, including advice regarding the selection and
                      evaluation of investment advisers and advice regarding
                      asset allocation strategies. The Adviser currently serves
                      as manager or administrator to more than 39 investment
                      companies including more than 290 portfolios, which
                      investment companies had more than $66 billion in assets
                      as of August 31, 1996.
                             Investment and asset allocation decisions for the
                      Funds are made by a committee within SFM.
                             SEI Fund Management ("SEI Management") provides the
                      Trust with overall management services, regulatory
                      reporting, all necessary office space, equipment,
 
                                       25
<PAGE>   84
 
                      personnel, and facilities, and acts as dividend disbursing
                      agent and shareholder servicing agent.

                             For its management services, SEI Management is
                      entitled to a fee, which is calculated daily and paid
                      monthly, at an annual rate of .20% of the average daily
                      net assets of each Fund. SEI Management has agreed to
                      waive its administration fee for the foreseeable future.
                      This waiver is voluntary and may be discontinued at any
                      time in SEI Management's sole discretion.
 
THE ADVISERS
AND SUB-ADVISERS
TO THE UNDERLYING
PORTFOLIOS
 
                      The following table sets forth information about the
                      advisers and sub-advisers to the Underlying Portfolios
                      approved by the Boards of Trustees of the Underlying
                      Trusts as of September 30, 1996:
 
<TABLE>
<CAPTION>
                                UNDERLYING PORTFOLIO        INVESTMENT ADVISOR             SUB-ADVISER(S)
                           ---------------------------------------------------------------------------------------
                           <S>                              <C>                  <C>
                           SIMT Large Cap Growth             SFM                 Alliance Capital Management, L.P.
                                                                                 IDS Advisory Group Inc.
                                                                                 Provident Investment Counsel, Inc.
                           ---------------------------------------------------------------------------------------
                           SIMT Large Cap Value              SFM                 LSV Asset Management
                                                                                 Mellon Equity Associates
                                                                                 Pacific Alliance Capital
                                                                                   Management
                           ---------------------------------------------------------------------------------------
                           SIMT Small Cap Growth             SFM                 Apodaca-Johnston Capital
                                                                                   Management
                                                                                 First of America Investment
                                                                                   Corporation
                                                                                 Nicholas-Applegate Capital
                                                                                   Management
                                                                                 Wall Street Associates
                           ---------------------------------------------------------------------------------------
                           SIMT Small Cap Value              SFM                 Boston Partners Asset Management,
                                                                                   L.P.
                                                                                 1838 Investment Advisors, L.P.
                           ---------------------------------------------------------------------------------------
                           SIT International Equity          SFM                 Acadian Asset Management, Inc.
                                                                                 Farrell Wako Global Investment
                                                                                   Management, Inc.
                                                                                 Morgan Grenfell Investment
                                                                                   Services, Ltd.
                                                                                 Seligman Henderson, Co.
                                                                                 Yamaichi Capital Management, Inc.
                                                                                   and Yamaichi Capital Management
                                                                                   (Singapore) Limited
                           ---------------------------------------------------------------------------------------
</TABLE>
 
                                       26
<PAGE>   85
 
<TABLE>
<CAPTION>
                                UNDERLYING PORTFOLIO        INVESTMENT ADVISOR             SUB-ADVISER(S)
                           ---------------------------------------------------------------------------------------
                           <S>                               <C>                 <C>
                           SIT Emerging Markets Equity       SFM                 Montgomery Asset Management, L.P.
                           ---------------------------------------------------------------------------------------
                           SIMT Core Fixed Income            SFM                 BlackRock Financial Management,
                                                                                   Inc.
                                                                                 Firstar Investment Research &
                                                                                   Management Company
                                                                                 Western Asset Management Company
                           ---------------------------------------------------------------------------------------
                           SIMT High Yield Bond              SFM                 BEA Associates
                           ---------------------------------------------------------------------------------------
                           SIT International Fixed Income    Strategic Fixed     None
                                                             Income, L.P.
                           ---------------------------------------------------------------------------------------
                           SLAT Prime Obligation             Wellington          None
                                                             Management
                                                             Company
                           ---------------------------------------------------------------------------------------
</TABLE>
 
SEI FINANCIAL
MANAGEMENT
CORPORATION           In addition to serving as the Trust's Adviser, SFM serves
                      as investment adviser to each Underlying Portfolio except
                      the SIT International Fixed Income and SLAT Prime
                      Obligation Portfolios.
                             Under its advisory agreement with each Underlying
                      Portfolio for which it serves as investment adviser (an
                      "Underlying SEI Portfolio"), SFM is authorized to make
                      investment decisions for the assets of the Underlying SEI
                      Portfolio, and to continuously review, supervise and
                      administer the Underlying SEI Portfolio's investment
                      program.
                             SFM acts as a "manager of managers" for the
                      Underlying SEI Portfolios. As Adviser, SFM oversees the
                      investment advisory services provided to the Underlying
                      SEI Portfolios and manages the cash portion of the
                      Portfolios' assets. Pursuant to separate sub-advisory
                      agreements with SFM, and under the supervision of both SFM
                      and the Boards of Trustees of the Underlying SEI
                      Portfolios, the sub-advisers are responsible for the
                      day-to-day investment management of all or a discrete
                      portion of the assets of the Underlying SEI Portfolios.
                      The sub-advisers are selected based primarily upon the
                      research and recommendations of SFM, which evaluates
                      quantitatively and qualitatively each such sub-adviser's
                      skills and investment results in managing assets for
                      specific asset classes, investment styles and strategies.
                      Subject to Board review, SFM allocates and, when
                      appropriate, reallocates the Underlying SEI Portfolios'
                      assets among sub-advisers, monitors and evaluates sub-
                      adviser performance, and oversees sub-adviser compliance
                      with the Portfolios' investment objectives, policies and
                      restrictions. SFM HAS THE ULTIMATE RESPONSIBILITY FOR THE
                      INVESTMENT PERFORMANCE OF THE UNDERLYING SEI PORTFOLIOS
                      DUE TO ITS RESPONSIBILITY TO OVERSEE SUB-ADVISERS AND
                      RECOMMEND THEIR HIRING, TERMINATION AND REPLACEMENT.
 
                                       27
<PAGE>   86
 
                             SFM has obtained an exemptive order from the
                      Securities and Exchange Commission (the "SEC") that
                      permits SFM, with the approval of the Underlying SEI
                      Portfolios' Boards for Trustees, to retain sub-advisers
                      unaffiliated with SFM for the Portfolios without
                      submitting the sub-advisory agreements to a vote of the
                      Portfolios' shareholders. The exemptive relief permits the
                      disclosure of only the aggregate amount payable by SFM
                      under all such sub-advisory agreements. The Underlying SEI
                      Portfolios will notify shareholders in the event of any
                      addition or change in the identity of its sub-advisers.
                             For its advisory services to the Underlying
                      Portfolios, SFM is entitled to a fee, which is calculated
                      daily and paid monthly, at an annual rate of .40% of the
                      average daily net assets of the SIMT Large Cap Growth
                      Portfolio, .35% of the average daily net assets of the
                      SIMT Large Cap Value Portfolio, .65% of the average daily
                      net assets of the SIMT Small Cap Growth and Small Cap
                      Value Portfolios, .505% of the average daily net assets of
                      the SIT International Equity Portfolio, 1.05% of the
                      average daily net assets of the SIT Emerging Markets
                      Equity Portfolio, .275% of the average daily net assets of
                      the SIMT Core Fixed Income Portfolio, and .4875% of the
                      average daily net assets of the SIMT High Yield Bond
                      Portfolio.
 
STRATEGIC FIXED
INCOME L.P.           Strategic Fixed Income L.P. ("SFI") acts as the investment
                      adviser to the SIT International Fixed Income Portfolio.
                      SFI is a limited partnership formed in 1991 under the laws
                      of the State of Delaware to manage multi-currency fixed
                      income portfolios. The general partner of the firm is
                      Kenneth Windheim and the limited partner is Strategic
                      Investment Partners ("SIP"). As of March 1, 1996, SFI
                      managed $5.4 billion of client assets. Together, SFI and
                      SIP managed over $10.2 billion in client assets as of that
                      date. The principal address of SFI is 1001 Nineteenth
                      Street North, 16th Floor, Arlington, Virginia 22209.
                             SFI is entitled to a fee, which is calculated and
                      paid monthly, at an annual rate of .30% of the average
                      daily net assets of the SIT International Fixed Income
                      Portfolio. SFI has voluntarily agreed to waive all or a
                      portion of its fee in order to limit the total operating
                      expenses of the Portfolio. SFI reserves the right to
                      terminate its voluntary waiver at any time in its sole
                      discretion.
 
WELLINGTON
MANAGEMENT
COMPANY               Wellington Management Company ("WMC"), 75 State Street,
                      Boston, Massachusetts 02109, serves as the investment
                      adviser to the SLAT Prime Obligation Portfolio.
                             As of March 1, 1996, WMC had investment management
                      authority with respect to approximately $109 billion of
                      assets. WMC is a professional investment counseling firm
                      which provides investment services to investment
                      companies, employee benefit plans, endowments,
                      foundations, and other institutions and individuals. WMC's
                      predecessor organizations have provided investment
                      advisory services to investment companies since 1933, and
                      to investment counseling clients since 1960. WMC is a
                      Massachusetts general partnership of which the following
 
                                       28
<PAGE>   87
 
                      persons are managing partners: Robert W. Doran, Duncan M.
                      McFarland and John R. Ryan.
                             WMC is entitled to a fee which is calculated daily
                      and paid monthly at an annual rate of .075% of the
                      combined average daily net assets of the various
                      portfolios of SLAT up to $500 million, and .02% of such
                      average daily net assets in excess of $500 million. Such
                      fees are allocated daily among the various portfolios of
                      SLAT on the basis of their relative net assets.
 
ACADIAN ASSET
MANAGEMENT, INC.      Acadian Asset Management, Inc. ("Acadian") acts as an
                      investment sub-adviser to the SIT International Equity
                      Portfolio pursuant to a sub-advisory agreement with the
                      Adviser. In accordance with the Portfolio's investment
                      objectives and policies and under the supervision of the
                      Adviser and the Underlying Trust's Board of Trustees,
                      Acadian is responsible for the day-to-day investment
                      management of the portion of the Portfolio assigned to it
                      by the Board of Trustees and, with respect thereto, places
                      orders on behalf of the Portfolio to effect the investment
                      decisions made.
                             Acadian, a wholly-owned subsidiary of United Asset
                      Management Corporation, was founded in 1977, and manages
                      approximately $3 billion in assets invested globally.
                      Acadian's business address is Two International Place,
                      Boston, Massachusetts 02110.
                             The Adviser pays Acadian a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIT International Equity Portfolio assigned
                      to it.
 
ALLIANCE CAPITAL
MANAGEMENT L.P.       Alliance Capital Management L.P. ("Alliance Capital")
                      serves as investment sub-adviser to a portion of the
                      assets of the SIMT Large Cap Growth Portfolio. Alliance is
                      a registered investment adviser organized as a Delaware
                      limited partnership which originated as Alliance Capital
                      Management Corporation in 1971. Alliance Capital
                      Management Corporation, an indirect wholly-owned
                      subsidiary of The Equitable Life Assurance Society of the
                      United States, is the general partner of Alliance. As of
                      March 1, 1996, Alliance managed over $149 billion in
                      assets. The principal business address of Alliance is 1345
                      Avenue of the Americas, New York, New York 10105.
                             The Adviser pays Alliance a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIMT Large Cap Growth Portfolio managed by
                      Alliance.
 
APODACA-JOHNSTON
CAPITAL
MANAGEMENT            Apodaca-Johnston Capital Management ("Apodaca") serves as
                      an investment sub-adviser to a portion of the assets of
                      the SIMT Small Cap Growth Portfolio. Apodaca is a
                      California corporation with its principal address at 50
                      California Street, Suite 3315, San Francisco, California
                      94014. Apodaca is owned equally by Scott Johnson, Jerry C.
                      Apodaca, Jr., and Jerry Apodaca, Sr. Apodaca's predecessor
                      was founded in 1985, and as of September 30, 1995, Apodaca
                      had approximately $290 million in assets under management.
                      Apodaca's clients include pension and profit sharing
                      plans, an endowment fund and an investment company
                      portfolio.
 
                                       29
<PAGE>   88
 
                             The Adviser pays Apodaca a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIMT Small Cap Growth Portfolio managed by
                      Apodaca.
 
BEA ASSOCIATES        BEA Associates ("BEA") serves as investment sub-adviser to
                      the SIMT High Yield Bond Portfolio. BEA is a general
                      partnership organized under the laws of the State of New
                      York and, together with its predecessor firms, has been
                      engaged in the investment advisory business for over 50
                      years. BEA's principal offices are located at One Citicorp
                      Center, 153 East 53rd Street, New York, New York 10022.
                      Credit Suisse Capital Corporation ("CS Capital") is an 80%
                      partner in BEA and CS Advisers Corp., a New York
                      corporation which is a wholly-owned subsidiary of CS
                      Capital, is a 20% partner in BEA. CS Capital is a
                      wholly-owned subsidiary of Credit Suisse Investment
                      Corporation, which is a wholly-owned subsidiary of Credit
                      Suisse, the second largest Swiss bank, which, in turn, is
                      a subsidiary of CS Holding, a Swiss corporation. BEA is
                      registered as an investment adviser under the Investment
                      Advisers Act of 1940.
                             BEA is a diversified asset manager, handling global
                      equity, balanced, fixed income and derivative securities
                      accounts for private individuals, as well as corporate
                      pension and profit-sharing plans, state pension funds,
                      union funds, endowments and other charitable institutions.
                      As of March 1, 1996, BEA managed approximately $28 billion
                      in assets.
                             The Adviser pays BEA a fee based on a percentage of
                      the average monthly market value of the assets of the SIMT
                      High Yield Bond Portfolio managed by BEA.
 
BLACKROCK FINANCIAL
MANAGEMENT, INC.      BlackRock Financial Management, Inc. ("BlackRock") serves
                      as an investment sub-adviser to a portion of the assets of
                      the SIMT Core Fixed Income Portfolio. BlackRock, a
                      registered investment adviser, is a Delaware corporation
                      with its principal business address at 345 Park Avenue,
                      30th Floor, New York, New York 10154. BlackRock's
                      predecessor was founded in 1988, and as of March 1, 1996,
                      BlackRock had $36.5 billion in assets under management.
                      BlackRock is wholly-owned by PNC Asset Management Group,
                      Inc., a wholly-owned subsidiary of PNC Bank, N.A. PNC
                      Bank, N.A.'s ultimate parent is PNC Bank Corp., One PNC
                      Plaza, Pittsburgh, Pennsylvania 15265, a bank holding
                      company. BlackRock provides investment advice to
                      investment companies, trusts, charitable organizations,
                      pension and profit sharing plans and government entities.
                             The Adviser pays BlackRock a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIMT Core Fixed Income Portfolio managed by
                      BlackRock.
 
                                       30
<PAGE>   89
 
BOSTON PARTNERS
ASSET MANAGEMENT,
L.P.                  Boston Partners Asset Management, L.P. ("BPAM") serves as
                      investment sub-adviser to a portion of the assets of the
                      SIMT Small Cap Value Portfolio. BPAM, a Delaware limited
                      partnership, is a registered investment adviser with its
                      principal business address at One Financial Center, 43rd
                      Floor, Boston, Massachusetts 02111. BPAM's general
                      partner, Boston Partners, Inc., One Financial Center, 43rd
                      Floor, Boston, Massachusetts 02111, whose sole shareholder
                      is Desmond J. Heathwood, Chief Investment Officer of BPAM,
                      owns approximately 20% of BPAM's partnership interests.
                      BPAM was founded in April, 1995, and as of December 31,
                      1995, it had approximately $5.5 billion in assets under
                      management. BPAM's clients include corporations,
                      endowments, foundations, pension and profit sharing plans
                      and two other investment companies.
 
                             The Adviser pays BPAM a fee based on a percentage
                      of the average monthly market value of the assets of the
                      SIMT Small Cap Value Portfolio managed by BPAM.
 
1838 INVESTMENT
ADVISORS, L.P.        1838 Investment Advisors, L.P. ("1838") serves as
                      investment sub-adviser to a portion of the assets of the
                      SIMT Small Cap Value Portfolio. 1838 is a Delaware limited
                      partnership located at 100 Matsonford Road, Radnor,
                      Pennsylvania. As of March 1, 1996, 1838 managed $4.7
                      billion in assets in large and small capitalization
                      equity, fixed income and balanced account portfolios.
                      Clients include corporate employee benefit plans,
                      municipalities, endowments, foundations, jointly trusteed
                      plans, insurance companies and wealthy individuals.
                             The Adviser pays 1838 a fee based on a percentage
                      of the average monthly market value of the assets of the
                      SIMT Small Cap Value Portfolio managed by 1838.
 
FARRELL WAKO
GLOBAL INVESTMENT
MANAGEMENT, INC.      Farrell Wako Global Investment Management, Inc. ("Farrell
                      Wako") acts as sub-adviser to a portion of the SIT
                      International Equity Portfolio. Farrell Wako, a Delaware
                      corporation and a wholly-owned subsidiary of Wako
                      Securities, was founded in 1991 and is a registered
                      investment advisor in the U.S. and Japan. Farrell Wako
                      currently manages over $200 million. The principal address
                      of Farrell Wako is 780 Third Avenue, New York, New York
                      10017.
                             The Adviser pays Farrell Wako a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIT International Equity Portfolio managed
                      by Farrell Wako.
 
FIRST OF AMERICA
INVESTMENT
CORPORATION           First of America Investment Corporation ("First America")
                      acts as sub-adviser to a portion of the SIMT Small Cap
                      Growth Portfolio. First of America is a Michigan
                      Corporation that is a wholly-owned subsidiary of First of
                      America Bank -- Michigan, N.A., a national banking
                      association, which is in turn a wholly-owned subsidiary of
                      First of America Bank Corporation, a registered bank
                      holding company. First of America is registered as an
                      investment adviser under the Investment Advisers Act of
 
                                       31
<PAGE>   90
 
                      1940. First of America, together with its predecessor, 
                      has been engaged in the investment advisory business 
                      since 1932. First America's principal business address 
                      is 303 North Rose Street, Suite 500, Kalamazoo, Michigan 
                      49007.
                             As of March 31, 1996, First of America had
                      approximately $13.7 billion in assets under management.
                      First of America's clients include mutual funds, trust
                      funds, and individually managed institutional and
                      individual accounts.
                             The Adviser pays First of America a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIMT Small Cap Growth Portfolio assigned to
                      First of America.
 
FIRSTAR INVESTMENT
RESEARCH &
MANAGEMENT
COMPANY               Firstar Investment Research & Management Company
                      ("FIRMCO") serves as an investment sub-adviser to a
                      portion of the assets of the SIMT Core Fixed Income
                      Portfolio. FIRMCO is a registered investment adviser with
                      its principal business address at 777 East Wisconsin
                      Avenue, Suite 800, Milwaukee, Wisconsin 53202. FIRMCO was
                      founded in 1986, and as of December 31, 1995, it had
                      approximately $15.6 billion in assets under management.
                      FIRMCO is a wholly-owned subsidiary of Firstar
                      Corporation, a bank holding company located at 777 East
                      Wisconsin Avenue, Milwaukee, Wisconsin 53202. FIRMCO's
                      clients include pension and profit sharing plans, trusts
                      and estates and one other investment company.
                             The Adviser pays FIRMCO a fee based on a percentage
                      of the average monthly market value of the assets of the
                      SIMT Core Fixed Income Portfolio managed by FIRMCO.
 
IDS ADVISORY
GROUP INC.            IDS Advisory Group Inc. ("IDS") serves as investment
                      sub-adviser to a portion of the assets of the SIMT Large
                      Cap Growth Portfolio. IDS is a registered investment
                      adviser and wholly-owned subsidiary of American Express
                      Financial Corporation. As of March 1, 1996, IDS managed
                      over $24 billion in assets, with $5 billion of this total
                      in large capitalization growth domestic equities. IDS was
                      founded in 1972 to manage tax-exempt assets for
                      institutional clients. The principal business address of
                      IDS is IDS Tower 10, Minneapolis, Minnesota 55440.
                             The Adviser pays IDS a fee based on a annual
                      percentage of the average monthly market value of the
                      assets of the SIMT Large Cap Growth Portfolio managed by
                      IDS.
 
LSV ASSET
MANAGEMENT            LSV Asset Management ("LSV") serves as investment
                      sub-adviser to a portion of the assets of the SIMT Large
                      Cap Value Portfolio. LSV is a registered investment
                      adviser organized as a Delaware general partnership. An
                      affiliate of the Adviser owns a majority interest of LSV.
                      The principal business address of LSV is 181 W. Madison
                      Avenue, Chicago, Illinois 60602.
                             LSV makes investment decisions based on a
                      quantitative computer model and, based on its ongoing
                      research and statistical analysis, make adjustments to the
                      model. Securities are identified for purchase or sale by
                      the Portfolio based upon the
 
                                       32
<PAGE>   91
 
                      computer model and defined variance tolerances. Purchases
                      and sales are effected by LSV based upon the output from 
                      the model.
                             The Adviser pays LSV a fee based on a percentage of
                      the average monthly market value of the assets of the SIMT
                      Large Cap Value Portfolio managed by LSV.
 
MELLON EQUITY
ASSOCIATES            Mellon Equity Associates ("Mellon Equity") serves as
                      investment sub-adviser to a portion of the assets of the
                      SIMT Large Cap Value Portfolio. Mellon Equity is a
                      Pennsylvania business trust founded in 1987, whose
                      beneficial owners are Mellon Bank, N.A. and MMIP, Inc.
                      Mellon Equity is a professional investment counseling firm
                      that provides investment management services to the equity
                      and balanced pension, public fund and profit-sharing
                      investment management markets, and is a registered
                      investment adviser under the Investment Advisers Act of
                      1940. Mellon Equity had discretionary management authority
                      with respect to approximately $8.8 billion of assets as of
                      December 31, 1995. Mellon Equity's predecessor
                      organization had managed domestic equity tax-exempt
                      institutional accounts since 1947. The business address
                      for Mellon Equity is 500 Grant Street, Suite 3700,
                      Pittsburgh, Pennsylvania 15258.
                             The Adviser pays Mellon Equity a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIMT Large Cap Value Portfolio managed by
                      Mellon Equity.
 
MONTGOMERY ASSET
MANAGEMENT L.P.       Montgomery Asset Management, L.P. ("MAM") acts as the
                      investment sub-adviser to the SIT Emerging Markets Equity
                      Portfolio. In accordance with the Portfolio's investment
                      objective and policies and under the supervision of the
                      Adviser and the Underlying Trust's Board of Trustees, MAM
                      is responsible for the day-to-day investment management of
                      the Portfolio and places orders on behalf of the Portfolio
                      to effect the investment decisions made.
                             MAM is an affiliate of Montgomery Securities, a San
                      Francisco-based investment banking firm. As of February
                      29, 1996, MAM had approximately $7.1 billion in assets
                      under management. MAM has over four years experience
                      providing investment management services. The principal
                      address of MAM is 600 Montgomery Street, San Francisco,
                      California 94111.
                             The Adviser pays MAM a fee based on a percentage of
                      the average monthly market value of the assets of the SIT
                      International Equity Portfolio assigned to MAM.
 
MORGAN GRENFELL
INVESTMENT SERVICES
LIMITED               Morgan Grenfell Investment Services Limited ("MG") acts as
                      the investment sub-adviser to the SIT International Equity
                      Portfolio. MG, a subsidiary of Morgan Grenfell Asset
                      Management Limited, managed over $12 billion in assets as
                      of December 31, 1995. Morgan Grenfell Asset Management
                      Limited, a wholly-owned subsidiary of Deutsche Bank, A.G.,
                      a German financial services conglomerate, managed over $94
                      billion in assets as of December 31, 1995. MG has over 11
                      years experience in managing international portfolios for
                      North American clients.
 
                                       33
<PAGE>   92
 
                      MG attempts to exploit perceived inefficiencies present 
                      in the European markets with original research and an 
                      emphasis on stock selection. The principal address of MG 
                      is 20 Finsbury Circus, London, England, EC2M 1NB.
                             The Adviser pays MG a fee based on a percentage of
                      the average monthly market value of the assets of the SIT
                      International Equity Portfolio assigned to MG.
 
NICHOLAS-APPLEGATE
CAPITAL
MANAGEMENT            Nicholas-Applegate Capital Management
                      ("Nicholas-Applegate") serves as investment sub-adviser to
                      a portion of the assets of the SIMT Small Cap Growth
                      Portfolio. Nicholas-Applegate has operated as an
                      investment adviser which provides investment services to
                      employee benefit plans, endowments, foundations, other
                      institutions and investment companies since 1984. As of
                      December 31, 1995, Nicholas-Applegate had discretionary
                      management authority with respect to approximately $29
                      billion of assets. The principal business address of
                      Nicholas-Applegate is 600 West Broadway, 29th Floor, San
                      Diego, California 92101. Nicholas-Applegate, pursuant to a
                      partnership agreement, is controlled by its general
                      partner Nicholas-Applegate Capital Management Holdings,
                      L.P., a limited partnership controlled by Arthur E.
                      Nicholas.
                             The Adviser pays Nicholas-Applegate a fee based on
                      a percentage of the average monthly market value of the
                      assets of the SIMT Small Cap Growth Portfolio managed by
                      Nicholas-Applegate.
 
PACIFIC ALLIANCE
CAPITAL
MANAGEMENT            Pacific Alliance Capital Management ("Pacific") serves as
                      investment sub-adviser to a portion of the assets of the
                      SIMT Large Cap Value Portfolio. Pacific is a division of
                      Union Bank of California, N.A., and provides equity and
                      fixed-income management services to a broad array of
                      corporate and municipal clients. Union Bank of California,
                      N.A. is a wholly-owned subsidiary of The Bank of
                      Tokyo-Mitsubishi Limited. As of December 31, 1995, Pacific
                      had discretionary management authority with respect to
                      approximately $11.9 billion of assets. The principal
                      business address of Pacific is 475 Sansome Street, San
                      Francisco, California 94111.
                             The Adviser pays Pacific a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIMT Large Cap Value Portfolio managed by
                      Pacific.
 
PROVIDENT
INVESTMENT
COUNSEL, INC.         Provident Investment Counsel, Inc. ("Provident"), is a
                      registered investment adviser with its principal business
                      address at 300 North Lake Avenue, Pasadena, California
                      91101. Provident, which, through its predecessors, has
                      been in business since 1951, and is a wholly-owned
                      subsidiary of UAM. Provident provides investment advice to
                      corporations, public entities, foundations and labor
                      unions, as well as to other investment companies. As of
                      December 31, 1995, Provident had over $16 billion in
                      client assets under management.
                             The Adviser pays Provident a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIMT Large Cap Growth Portfolio managed by
                      Provident.
 
                                       34
<PAGE>   93
 
SELIGMAN
HENDERSON CO.         Seligman Henderson Co. ("Seligman") acts as sub-adviser to
                      a portion of the assets of the SIT International Equity
                      Portfolio. Seligman Henderson Co. is a New York general
                      partnership and is structured as an equal partnership
                      between J&W Seligman & Co. and Henderson International
                      Inc., a controlled affiliate of Henderson Administration
                      Group plc. Seligman Henderson Co. was established in 1991
                      and manages over $3 billion in global and international
                      equity portfolios for U.S. institutional and retail
                      clients. The principal address of Seligman is 100 Park
                      Avenue, New York, New York 10017.
                             The Adviser pays Seligman a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIT International Equity Portfolio managed
                      by Seligman.
 
WALL STREET
ASSOCIATES            Wall Street Associates ("WSA") serves as investment
                      sub-adviser to a portion of the assets of the SIMT Small
                      Cap Growth Portfolio. WSA is organized as a corporation
                      with its principal business address at 1200 Prospect
                      Street, Suite 100, La Jolla, California 92037. WSA was
                      founded in 1987, and as of December 31, 1995, had
                      approximately $900 million in assets under management. WSA
                      is owned equally by William Jeffery III, Kenneth F.
                      McCain, and Richard S. Coons. WSA provides investment
                      advisory services for institutional clients, an investment
                      partnership for which it serves as general partner, a
                      group trust, for which it serves as sole investment
                      manager, and an offshore fund for foreign investors for
                      which it serves as the sole investment manager.
                             The Adviser pays WSA is based on the basis of a
                      percentage of the average monthly market value of the
                      assets of the SIMT Small Cap Growth Portfolio assigned to
                      WSA.
 
WESTERN ASSET
MANAGEMENT
COMPANY               Western Asset Management Company ("Western") serves as an
                      investment sub-adviser to a portion of the assets of the
                      SIMT Core Fixed Income Portfolio. Western is located at
                      117 East Colorado Boulevard, Pasadena, California 91105,
                      and is a wholly owned subsidiary of Legg Mason, Inc., a
                      financial services company located in Baltimore, Maryland.
                      Western was founded in 1971, and specializes in the
                      management of fixed income portfolios. As of March 1,
                      1996, Western managed approximately $19.7 billion in
                      client assets, including $2 billion of investment company
                      assets.
                             The Adviser pays Western a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIMT Core Fixed Income Portfolio managed by
                      Western.
 
YAMAICHI CAPITAL
MANAGEMENT, INC.
AND YAMAICHI
CAPITAL
MANAGEMENT
(SINGAPORE) LIMITED   Yamaichi Capital Management, Inc. ("Yamaichi") and
                      Yamaichi Capital Management (Singapore) Limited ("YCMS")
                      jointly act as sub-adviser to a portion of the assets of
                      the SIT International Equity Portfolio. Yamaichi is a New
                      York Corporation established in 1981 and YCMS is a
                      Singapore corporation established in 1979, and each is a
                      wholly-owned subsidiary of Yamaichi International Capital
                      Management
 
                                       35
<PAGE>   94
 
                      Co., Ltd ("YICM"). Yamaichi, YCMS and YICM are controlled
                      by Yamaichi Securities Co., Ltd., which is located in 
                      Tokyo, Japan. YCMS and its affiliates manage 
                      approximately $22 billion worldwide. The principal 
                      address of Yamaichi is 2 World Trade Center, Suite 9828,
                      New York, New York 10048. The principal address
                      of YCMS is 138 Robinson Road, #19-01, Hong Leong Centre,
                      Singapore 068906.
                             The Adviser pays Yamaichi a fee based on a
                      percentage of the average monthly market value of the
                      assets of the SIT International Equity Portfolio managed
                      by Yamaichi.
                             Information regarding the portfolio managers
                      employed by the advisers and sub-advisers to the
                      Underlying Portfolios is set forth in the Trust's
                      Statement of Additional Information.
 
TRANSFER AGENT
 
                      The Trust and DST Systems, Inc. (the "Transfer Agent"),
                      1004 Baltimore Street, 2nd Floor, Kansas City, Missouri
                      64105, have entered into a transfer agent agreement with
                      respect to the Trust's Class A shares.
 
DISTRIBUTION
AND SHAREHOLDER
SERVICING
 
                      SEI Financial Services Company (the "Distributor"), a
                      wholly-owned subsidiary of SEI, serves as each Fund's
                      distributor pursuant to a distribution agreement (the
                      "Distribution Agreement") with the Trust. The Trustees of
                      the Trust have adopted a distribution plan for the Trust's
                      Class D shares (the "Class D Plan") pursuant to Rule 12b-1
                      under the 1940 Act, as well as a shareholder servicing
                      plan. Class A Shares of the Funds are not subject to a
                      distribution plan.
                             It is possible that an institution may offer
                      different categories of shares to its customers and thus
                      receive different compensation with respect to the
                      different categories. These financial institutions may
                      also charge separate fees to their customers.
                             The Distributor may, from time to time in its sole
                      discretion, institute one or more promotional incentive
                      programs, which will be paid for by the Distributor from
                      its own resources. Under any such program, the Distributor
                      will provide promotional incentives, in the form of cash
                      or other compensation, including merchandise, airline
                      vouchers, trips and vacation packages, to all dealers
                      selling shares of the Funds. Such promotional incentives
                      will be offered uniformly to all shares of the Funds and
                      also will be offered uniformly to all dealers, predicated
                      upon the amount of shares of the Funds sold by such
                      dealer.
 
                                       36
<PAGE>   95
 
PURCHASE AND
REDEMPTION OF
SHARES
 
                      Financial institutions may acquire Class A Shares of the
                      Funds for their own account or as record owner on behalf
                      of fiduciary, agency or custody accounts by placing orders
                      with the Transfer Agent. State securities laws may require
                      financial institutions purchasing shares for their
                      customers to register as dealers pursuant to state laws.
                      To allow for processing and transmittal of orders to the
                      Transfer Agent on the same day, financial institutions may
                      impose earlier cut-off times for receipt of purchase
                      orders directed through them. Certain financial
                      institutions may charge separate customer account fees.
                      Information concerning shareholder services and any
                      charges will be provided to the customer by the
                      Intermediary.
                             Class A shares are offered to tax-advantaged
                      retirement accounts. If you are investing in a Fund
                      through a 401(k) or other retirement plan, you should
                      contact your plan sponsor for the services and procedures
                      which pertain to your account.
                             Shares of each Fund may be purchased or redeemed on
                      days on which the New York Stock Exchange is open for
                      business (a "Business Day"). Shares of the Funds are
                      offered only to residents of states in which the shares
                      are eligible for purchase.
                             Shareholders who desire to purchase or redeem
                      shares for cash must place their orders with the Transfer
                      Agent prior to 4:00 p.m. Eastern time on any Business Day
                      for the order to be accepted on that Business Day.
                      Generally, cash investments must be transmitted or
                      delivered in federal funds to the wire agent by 12 noon on
                      the next Business Day following the day the order is
                      placed. The Trust reserves the right to reject a purchase
                      order when the Distributor determines that it is not in
                      the best interest of the Trust or its shareholders to
                      accept such order. In circumstances where a purchase order
                      is received and payment is made, but no instructions are
                      given as to which Fund should be purchased, the
                      Distributor may invest such payment in an affiliated money
                      market fund until the purchase instructions have been
                      clarified. Until the Transfer Agent receives purchase
                      instructions in good order, such purchase request will not
                      be accepted by the Trust.
                             Purchases will be made in full and fractional
                      shares of the Funds calculated to three decimal places.
                      The Trust will send shareholders of record a statement of
                      shares owned after each transaction. The purchase price of
                      shares is the net asset value next determined after the
                      receipt of the purchase order by the Transfer Agent.
                             The net asset value per share of each Fund is
                      determined by dividing the total market value of such
                      Fund's investments and other assets, less any liabilities,
                      by the total number of outstanding shares of that Fund.
                      The assets of each Fund consist primarily of shares of the
                      Underlying Portfolios, which are valued at their
 
                                       37
<PAGE>   96
 
                      respective net asset values. The Underlying Portfolios 
                      value their portfolio securities at the last quoted 
                      sales price for such securities, or, if there is no such 
                      reported sales price on the valuation date, at the most 
                      recent quoted bid price. An Underlying Portfolio may 
                      also use a pricing service to obtain the last sale price 
                      of each equity or fixed income security held in its 
                      portfolio. Unlisted securities for which market 
                      quotations are readily available are valued at the most 
                      recent quoted bid price. Net asset value per share is 
                      determined daily as of the close of business of the 
                      New York Stock Exchange (currently, 4:00 p.m. Eastern 
                      time) on each Business Day.
                             The minimum initial investment in a Fund's Class A
                      shares is $25,000; however, the minimum investment may be
                      waived at the Distributor's discretion.
                             Shareholders who desire to redeem shares of the
                      Funds must place their redemption orders with Transfer
                      Agent prior to 4:00 p.m. Eastern time on any Business Day.
                      The redemption price is the net asset value per share of
                      the Fund next determined after receipt by the Transfer
                      Agent of the redemption order. Payment or redemption will
                      be made as promptly as possible and, in any event, within
                      seven days after the redemption order is received.
                             The Trust intends to generally make redemptions in
                      cash. The Trust may, however, make redemptions in whole or
                      in part by a distribution in kind of readily marketable
                      securities in lieu of cash. Shareholders may incur
                      brokerage costs on the sale of any such securities so
                      received in payment of redemptions.
                             Purchase and redemption orders may be placed by
                      telephone by calling 1-800-342-5734. Neither the Trust nor
                      the Transfer Agent will be responsible for any loss,
                      liability, cost or expense for acting upon wire
                      instructions or upon telephone instructions that it
                      reasonably believes to be genuine. The Trust and the
                      Trust's Transfer Agent will each employ reasonable
                      procedures to confirm that instructions communicated by
                      telephone are genuine, including requiring a form of
                      personal identification prior to acting upon instructions
                      received by telephone and recording telephone
                      instructions. If reasonable procedures are not employed,
                      the Trust and/or Trust's Transfer Agent may be liable for
                      any losses due to unauthorized or fraudulent telephone
                      transactions. If market conditions are extraordinarily
                      active, or other extraordinary circumstances exist, and
                      you experience difficulties placing redemption orders by
                      telephone, you may wish to consider placing your order by
                      other means.
                             You may redeem shares at any time. For an IRA or
                      other tax-deferred account, you must make your redemption
                      request in writing. You should be aware that any
                      distributions personally received by you from the account
                      prior to age 59 1/2 are generally subject to a 10% penalty
                      tax, as well as to ordinary income taxes. To avoid the 10%
                      penalty, you must generally roll over your distribution to
                      another tax-deferred account or tax-qualified retirement
                      plan (if permitted) within 60 days.
 
                                       38
<PAGE>   97
 
PERFORMANCE
 
                      From time to time, the Funds may advertise yield and total
                      return. These figures will be based on historical earnings
                      and are not intended to indicate future performance. The
                      yield of a Fund refers to the annualized income generated
                      by an investment in the Fund over a specified 30-day
                      period. The yield is calculated by assuming that the same
                      amount of income generated by the investment during that
                      period is generated in each 30-day period over one year
                      and is shown as a percentage of the investment.
                             The total return of a Fund refers to the average
                      compounded rate of return to a hypothetical investment for
                      designated time periods (including but not limited to, the
                      period from which the Fund commenced operations through
                      the specified date), assuming that the entire investment
                      is redeemed at the end of each period and assuming the
                      reinvestment of all dividend and capital gain
                      distributions. The total return of a Fund may also be
                      quoted as a dollar amount or on an aggregate basis or an
                      actual basis, without inclusion of any front-end or
                      contingent sales charges, or with a reduced sales charge
                      in advertisements distributed to investors entitled to a
                      reduced sales charge.
                             A Fund may periodically compare its performance to
                      that of: (i) other mutual funds tracked by mutual fund
                      rating services (such as Lipper Analytical), financial and
                      business publications and periodicals; (ii) broad groups
                      of comparable mutual funds; (iii) unmanaged indices which
                      may assume investment of dividends but generally do not
                      reflect deductions for administrative and management
                      costs; or (iv) other investment alternatives. The Fund may
                      quote Morningstar, Inc., a service that ranks mutual funds
                      on the basis of risk-adjusted performance, and Ibbotson
                      Associates of Chicago, Illinois, which provides historical
                      returns of the capital markets in the U.S. The Fund may
                      use long-term performance of these capital markets to
                      demonstrate general long-term risk versus reward scenarios
                      and could include the value of a hypothetical investment
                      in any of the capital markets. The Fund may also quote
                      financial and business publications and periodicals as
                      they relate to fund management, investment philosophy, and
                      investment techniques.
                             The Fund may quote various measures of volatility
                      and benchmark correlation in advertising and may compare
                      these measures to those of other funds. Measures of
                      volatility attempt to compare historical share price
                      fluctuations or total returns to a benchmark while
                      measures of benchmark correlation indicate how valid a
                      comparative benchmark might be. Measures of volatility and
                      correlation are calculated using averages of historical
                      data and cannot be calculated precisely.
                             For each Fund, the performance of Class A Shares
                      will normally be higher than the performance of the Class
                      D shares of that Fund because of the additional
                      distribution, shareholder servicing and transfer agent
                      expenses charged to Class D Shares.
 
                                       39
<PAGE>   98
 
TAXES
 
                      The following summary of federal income tax consequences
                      is based on current tax laws and regulations, which may be
                      changed by legislative, judicial, or administrative
                      action. No attempt has been made to present a detailed
                      explanation of the federal, state, or local tax treatment
                      of the Funds or their shareholders. In addition, state and
                      local tax consequences of an investment in a Fund may
                      differ from the federal income tax consequences described
                      below. Accordingly, shareholders are urged to consult
                      their tax advisers regarding specific questions as to
                      federal, state, and local taxes. Additional information
                      concerning taxes is set forth in the Statement of
                      Additional Information.
                             IRAs and participants in other tax-qualified
                      retirement plans generally will not be subject to federal
                      tax liability on either dividend and capital gain
                      distributions from the Funds or redemption of shares of
                      the Funds. Rather, participants in such plans will be
                      taxed when they begin taking distributions from their IRAs
                      and/or the plans. There are various restrictions under the
                      Code on eligibility, contributions and withdrawals,
                      depending on the type of tax-deferred account or
                      tax-qualified retirement plan. The rules governing
                      tax-deferred accounts and tax-qualified retirement plans
                      are complex, and failure to comply with the governing
                      rules and regulations may result in a substantial cost to
                      you, including the loss of tax advantages and the
                      imposition of additional taxes and penalties by the IRS.
                      You should consult with a tax professional on the specific
                      rules governing your own plan.
 
TAX STATUS OF THE
FUNDS                 Each Fund is treated as a separate entity for federal
                      income tax purposes and is not combined with the Trust's
                      other Funds. Each Fund intends to continue to qualify for
                      the special tax treatment afforded regulated investment
                      companies ("RICs") under Subchapter M of the Code, so as
                      to be relieved of federal income tax on net investment
                      income and net capital gain (the excess of net long-term
                      capital gain over net short-term capital loss) distributed
                      to shareholders.
 
TAX STATUS OF
DISTRIBUTIONS         Each Fund will distribute substantially all of its net
                      investment income (including net short-term capital gain)
                      and net capital gain to shareholders. Dividends from a
                      Fund's net investment income will be taxable to its
                      shareholders as ordinary income, whether received in cash
                      or in additional shares, to the extent of the Fund's
                      earnings and profits. Dividends from a Fund's net
                      investment income will qualify for the dividends received
                      deduction for corporate shareholders to the extent such
                      dividends are derived from dividends paid by Underlying
                      Portfolios that qualify for such deduction. Distributions
                      of net capital gain are taxable to shareholders as long-
                      term capital gain regardless of how long the shareholders
                      have held shares or whether the distributions are received
                      in cash or in additional shares. Each Fund will make
                      annual reports to shareholders of the federal income tax
                      status of all distributions. Each Fund intends to make
                      sufficient distributions to avoid liability for
 
                                       40
<PAGE>   99
 
                      the federal excise tax applicable to RICs. Dividends 
                      declared by a Fund in October, November or December of 
                      any year and payable to shareholders of record on a date 
                      in such a month will be deemed to have been paid by the 
                      Fund and received by the shareholders on December 31 of 
                      that year if paid by the Fund at any time during the 
                      following January.
                             Investment income received by the Funds from
                      sources within foreign countries may be subject to foreign
                      income taxes withheld at the source. The Funds will not be
                      able to treat shareholders as having paid their
                      proportionate share of such taxes for foreign tax credit
                      purposes.
                             Each sale or redemption of a Fund's shares is a
                      taxable transaction to the shareholder.
 
GENERAL
INFORMATION
 
The Trust             The Trust was organized as a Massachusetts business trust
                      under a Declaration of Trust dated November 20, 1995. The
                      Declaration of Trust permits the Trust to offer separate
                      portfolios of shares and different classes of each
                      portfolio. Shareholders may purchase shares in each Fund
                      through two separate classes of shares: Class A Shares and
                      Class D Shares, which provide for variations in
                      distribution, shareholder servicing and transfer agent
                      costs, voting rights and dividends. Additional information
                      pertaining to the Trust may be obtained by writing to SEI
                      Financial Management Corporation, 680 East Swedesford
                      Road, Wayne, Pennsylvania 19087-1658, or by calling
                      1-800-342-5734. All consideration received by the Trust
                      for shares of any Fund and all assets of such Fund belong
                      to that Fund and would be subject to liabilities related
                      thereto.
                             The Trust pays its expenses, including fees of its
                      service providers, audit and legal expenses, expenses of
                      preparing prospectuses, proxy solicitation materials and
                      reports to shareholders, costs of custodial services and
                      registering the shares under federal and state securities
                      laws, pricing, insurance expenses, including litigation
                      and other extraordinary expenses, brokerage costs,
                      interest charges, taxes and organization expenses.
 
Trustees of the Trust The management and affairs of the Trust are supervised by
                      the Trustees under the laws of the Commonwealth of
                      Massachusetts. The Trustees have approved contracts under
                      which, as described above, certain companies provide
                      essential management services to the Trust.
 
Voting Rights         Each share held entitles the shareholder of record to one
                      vote. Each portfolio of the Trust will vote separately on
                      matters relating solely to that portfolio. Each class will
                      vote separately on matters pertaining to its distribution
                      plan. Each Fund will vote its
 
                                       41
<PAGE>   100
 
                      Underlying Portfolio shares in proportion to the votes of
                      all other shareholders of each respective Underlying 
                      Portfolio.
                             As a Massachusetts business trust, the Trust is not
                      required to hold annual meetings of shareholders, but
                      approval will be sought for certain changes in the
                      operation of the Trust and for the election of Trustees
                      under certain circumstances. In addition, a Trustee may be
                      removed by the remaining Trustees or by shareholders at a
                      special meeting called upon written request of
                      shareholders owning at least 10% of the outstanding shares
                      of the Trust. In the event that such a meeting is
                      requested, the Trust will provide appropriate assistance
                      and information to the shareholders requesting the
                      meeting.
 
Reporting             The Trust issues unaudited financial information
                      semi-annually and audited financial statements annually.
                      The Trust furnishes proxy statements and other reports to
                      shareholders of record.
 
Shareholder Inquiries Shareholder inquiries should be directed to DST Systems,
                      Inc., P.O. Box 419240, Kansas City, Missouri 64141-6240.
 
Dividends             Substantially all of the net investment income (exclusive
                      of capital gain) of each Fund is periodically declared and
                      paid as a dividend. Capital gains, if any, are distributed
                      at least annually.
                             Shareholders automatically receive all income
                      dividends and capital gain distributions in additional
                      shares at the net asset value next determined following
                      the record date, unless the shareholder has elected to
                      take such payment in cash. Shareholders may change their
                      election by providing written notice to the Adviser at
                      least 15 days prior to the distribution.
                             Dividends and capital gains of each Fund are paid
                      on a per-share basis. The value of each share will be
                      reduced by the amount of any such payment. If shares are
                      purchased shortly before the record date for dividend or
                      capital gain distributions, a shareholder will pay the
                      full price for the shares and receive some portion of the
                      price back as a taxable dividend or distribution.
 
Counsel and Independent
Accountants           Morgan, Lewis & Bockius LLP serves as counsel to the
                      Trust. Price Waterhouse LLP serves as the independent
                      accountants of the Trust.
 
Custodian and Wire Agent
                      SFM, which serves as transfer agent for the Underlying
                      Portfolios, also maintains custody of assets of each Fund
                      that consist of uncertificated shares of the Underlying
                      Portfolios. CoreStates Bank, N.A., Broad and Chestnut
                      Streets, P.O. Box 7618, Philadelphia, Pennsylvania 19101,
                      acts as Custodian for the non-mutual fund assets of each
                      Fund (the "Custodian"). The Custodian holds cash,
                      securities and other assets of the Trust as required by
                      the 1940 Act, and acts as wire agent of the Trust's
                      assets.
 
                                       42
<PAGE>   101
 
DESCRIPTION OF
PERMITTED
INVESTMENTS AND
RISK FACTORS OF
THE UNDERLYING
PORTFOLIOS
 
                      The following is a brief description of the permitted
                      investments and investment practices practices for the
                      Underlying Portfolios, and the associated risk factors:
 
American Depositary
Receipts ("ADRs"),
Continental Depositary
Receipts ("CDRs"),
European Depositary
Receipts ("EDRs") and
Global Depositary
Receipts ("GDRs")     ADRs are securities, typically issued by a U.S. financial
                      institution (a "depositary"), that evidence ownership
                      interests in a security or a pool of securities issued by
                      a foreign issuer and deposited with the depositary. ADRs
                      include American Depositary Shares and New York Shares.
                      EDRs, which are sometimes referred to as Continental
                      Depositary Receipts ("CDRs"), are securities, typically
                      issued by a non-U.S. financial institution, that evidence
                      ownership interests in a security or a pool of securities
                      issued by either a U.S. or foreign issuer. GDRs are issued
                      globally and evidence similar ownership.
 
Asset-Backed Securities
                      Asset-backed securities are securities secured by
                      non-mortgage assets such as company receivables, truck and
                      auto loans, leases and credit card receivables. Such
                      securities are generally issued as pass-through
                      certificates, which represent undivided fractional
                      ownership interests in the underlying pools of assets.
                      Such securities also may be debt obligations and are
                      generally issued as the debt of a special purpose entity,
                      such as a trust, organized solely for the purpose of
                      owning such assets and issuing such debt.
 
Convertible Securities
                      Convertible securities are corporate securities that are
                      exchangeable for a set number of another security at a
                      prestated price. Convertible securities typically have
                      characteristics similar to both fixed income and equity
                      securities. Because of the conversion feature, the market
                      value of a convertible security tends to move with the
                      market value of the underlying stock. The value of a
                      convertible security is also affected by prevailing
                      interest rates, the credit quality of the issuer, and any
                      call provisions.
 
Demand Instruments    Demand instruments are instruments which may involve a
                      conditional or unconditional demand feature which permits
                      the holder to demand payment of the principal amount of
                      the instrument. They may include variable amount master
                      demand notes.
 
Derivatives           Derivatives are securities that derive their value from
                      other securities, assets or indices. The following are
                      considered derivative securities: options on futures,
                      futures, options (e.g., puts and calls), swap agreements,
                      mortgage-backed securities and forward commitments,
                      floating and variable rate securities, convertible
 
                                       43
<PAGE>   102
 
                      securities, "stripped" U.S. Treasury securities (e.g., 
                      Receipts and STRIPs) and privately issued stripped 
                      securities (e.g., TGRs, TRs and CATS).
 
Equity Securities     Equity securities represent ownership interests in a
                      company or corporation and consist of common stock,
                      preferred stock, warrants and rights to subscribe to
                      common stock and, in general, any security that is
                      convertible into or exchangeable for common stock.
                      Investments in common stocks are subject to market risks
                      which may cause their prices to fluctuate over time. The
                      value of convertible securities is also affected by
                      prevailing interest rates, the credit quality of the
                      issuer and any call provisions. Changes in the value of
                      fund securities will not necessarily affect cash income
                      derived from these securities, but will affect a
                      Portfolio's net asset value.
 
Fixed Income Securities
                      Fixed income securities are debt obligations issued by
                      corporations, municipalities and other borrowers. The
                      market value of fixed income investments will generally
                      change in response to interest rate changes and other
                      factors. During periods of falling interest rates, the
                      values of outstanding fixed income securities generally
                      rise. Conversely, during periods of rising interest rates,
                      the values of such securities generally decline.
                             The Portfolios may invest in securities rated in
                      the fourth highest category by an NRSRO; such securities,
                      while still investment grade, are considered to have
                      speculative characteristics. The SIMT High Yield Bond Fund
                      must invest at least 65%, and the SIT Emerging Markets
                      Equity Portfolio may invest, up to 5% of its net assets in
                      securities rated lower than investment grade. Bonds rated
                      below investment grade are often referred to as "junk
                      bonds." Such securities involve greater risk of default or
                      price declines than investment grade securities due to
                      changes in the issuer's creditworthiness and the outlook
                      for economic growth.
 
Forward Foreign
Currency Contracts    A forward contract involves an obligation to purchase or
                      sell a specific currency amount at a future date, agreed
                      upon by the parties, at a price set at the time of the
                      contract. A Portfolio may also enter into a contract to
                      sell, for a fixed amount of U.S. dollars or other
                      appropriate currency, the amount of foreign currency
                      approximating the value of some or all of the Portfolio's
                      securities denominated in such foreign currency.
 
Futures Contracts and
Options on Futures
Contracts             Futures contracts provide for the future sale by one party
                      and purchase by another party of a specified amount of a
                      specific security at a specified future time and at a
                      specified price. An option on a futures contract gives the
                      purchaser the right, in exchange for a premium, to assume
                      a position in a futures contract at a specified exercise
                      price during the term of the option. A Portfolio may use
                      futures contracts and related options for bona fide
                      hedging purposes, to offset changes in the value of
                      securities held or expected to be acquired or be disposed
                      of, to minimize fluctuations in foreign currencies, or to
                      gain exposure to a particular market or instrument. A
                      Portfolio will minimize the risk that it will be unable to
                      close out a
 
                                       44
<PAGE>   103
 
                      futures contract by only entering into futures contracts 
                      which are traded on national futures exchanges. In 
                      addition, a Portfolio will only sell covered futures 
                      contracts and options on futures contracts.
                             Stock and bond index futures are futures contracts
                      for various stock and bond indices that are traded on
                      registered securities exchanges. Stock and bond index
                      futures contracts obligate the seller to deliver (and the
                      purchaser to take) an amount of cash equal to a specific
                      dollar amount times the difference between the value of a
                      specific stock or bond index at the close of the last
                      trading day of the contract and the price at which the
                      agreement is made.
                             Stock and bond index futures contracts are
                      bilateral agreements pursuant to which two parties agree
                      to take or make delivery of an amount of cash equal to a
                      specified dollar amount times the difference between the
                      stock or bond index value at the close of trading of the
                      contract and the price at which the futures contract is
                      originally struck. No physical delivery of the stocks or
                      bonds comprising the Index is made; generally contracts
                      are closed out prior to the expiration date of the
                      contracts.
                             No price is paid upon entering into futures
                      contracts. Instead, a Portfolio would be required to
                      deposit an amount of cash or U.S. Treasury securities
                      known as "initial margin." Subsequent payments, called
                      "variation margin," to and from the broker, would be made
                      on a daily basis as the value of the futures position
                      varies (a process known as "marking to market"). The
                      margin is in the nature of a performance bond or
                      good-faith deposit on a futures contract.
                             Eurodollar instruments are U.S. dollar-denominated
                      futures contracts or options thereon which are linked to
                      the London Interbank Offered Rate ("LIBOR"), although
                      foreign currency denominated instruments are available
                      from time to time. Eurodollar futures contracts enable
                      purchasers to obtain a fixed rate for the lending of the
                      funds and sellers to obtain a fixed rate for borrowings.
                             There are risks associated with these activities,
                      including the following: (1) the success of a hedging
                      strategy may depend on an ability to predict movements in
                      the prices of individual securities, fluctuations in
                      markets and movements in interest rates; (2) there may be
                      an imperfect or no correlation between the changes in
                      market value of the securities held by the Portfolio and
                      the prices of futures and options on futures; (3) there
                      may not be a liquid secondary market for a futures
                      contract or option; (4) trading restrictions or
                      limitations may be imposed by an exchange; and (5)
                      government regulations may restrict trading in futures
                      contracts and futures options.
                             A Portfolio may enter into futures contracts and
                      options on futures contracts traded on an exchange
                      regulated by the Commodities Futures Trading Commission
                      ("CFTC"), as long as, to the extent that such transactions
                      are not for "bona fide hedging purposes," the aggregate
                      initial margin and premiums on such positions (excluding
                      the amount by which such options are in the money) do not
                      exceed 5%
 
                                       45
<PAGE>   104
 
                      of a Portfolio's net assets. A Portfolio may buy and 
                      sell futures contracts and related options to manage its 
                      exposure to changing interest rates and securities
                      prices. Some strategies reduce a Portfolio's exposure to 
                      price fluctuations, while others tend to increase its 
                      market exposure. Futures and options on futures can be 
                      volatile instruments and involve certain risks that could
                      negatively impact a Portfolio's return.
                             In order to avoid leveraging and related risks,
                      when a Portfolio purchases futures contracts, it will
                      collateralize its position by depositing an amount of cash
                      or liquid, high grade debt securities equal to the market
                      value of the futures positions held, less margin deposits,
                      in a segregated account with its custodian. Collateral
                      equal to the current market value of the futures position
                      will be marked to market on a daily basis.
 
Illiquid Securities   Illiquid securities are securities that cannot be disposed
                      of within seven business days at approximately the price
                      at which they are being carried on the Portfolio's books.
                      Illiquid securities include demand instruments with a
                      demand notice period exceeding seven days, when there is
                      no secondary market for such security and repurchase
                      agreements with durations over seven days in length.
 
Money Market
Instruments           Money market securities are high-quality,
                      dollar-denominated, short-term debt instruments. They
                      consist of: (i) bankers' acceptances, certificates of
                      deposits, notes and time deposits of highly-rated U.S.
                      banks and U.S. branches of foreign banks; (ii) U.S.
                      Treasury Obligations and obligations of agencies and
                      instrumentalities of the U.S. Government; (iii)
                      high-quality commercial paper issued by U.S. and foreign
                      corporations; (iv) debt obligations with a maturity of one
                      year or less issued by corporations that issue
                      high-quality commercial paper; and (v) repurchase
                      agreements involving any of the foregoing obligations
                      entered into with highly-rated banks and broker-dealers.
 
Mortgage-Backed
Securities            Mortgage-backed securities are instruments that entitle
                      the holder to a share of all interest and principal
                      payments from mortgages underlying the security. The
                      mortgages backing these securities include conventional
                      fifteen- and thirty-year fixed rate mortgages, graduated
                      payment mortgages, adjustable rate mortgages, and balloon
                      mortgages. During periods of declining interest rates,
                      prepayment of mortgages underlying mortgage-backed
                      securities can be expected to accelerate. Prepayment of
                      mortgages which underlie securities purchased at a premium
                      often results in capital losses, while prepayment of
                      mortgages purchased at a discount often results in capital
                      gains. Because of these unpredictable prepayment
                      characteristics, it is often not possible to predict
                      accurately the average life or realized yield of a
                      particular issue.
                             Government Pass-Through Securities.  These are
                      securities that are issued or guaranteed by a U.S.
                      Government agency representing an interest in a pool of
 
                                       46
<PAGE>   105
 
                      mortgage loans. The primary issuers or guarantors of 
                      these mortgage-backed securities are GNMA, FNMA and 
                      FHLMC. GNMA, FNMA and FHLMC guarantee timely distribu-
                      tions of interest to certificate holders. GNMA and FNMA 
                      also guarantee timely distributions of scheduled 
                      principal. FNMA and FHLMC obligations are not backed by 
                      the full faith and credit of the U.S. Government as GNMA 
                      certificates are, but FNMA and FHLMC securities are 
                      supported by the instrumentalities' right to borrow from 
                      the U.S. Treasury.
                             Private Pass-Through Securities.  These are
                      mortgage-backed securities issued by a non-governmental
                      entity, such as a trust or corporate. These securities
                      include collateralized mortgage obligations ("CMOs") and
                      real estate mortgage investment conduits ("REMICs"). While
                      they are generally structured with one or more types of
                      credit enhancement, private pass-through securities
                      typically lack a guarantee by an entity having the credit
                      status of a governmental agency or instrumentality.
                             Collateralized Mortgage Obligations ("CMOs").  CMOs
                      are debt obligations or multiclass pass-through
                      certificates issued by agencies or instrumentalities of
                      the U.S. Government or by private originators or investors
                      in mortgage loans. Principal payments on the underlying
                      mortgage assets may cause CMOs to be retired substantially
                      earlier than their stated maturities or final distribution
                      dates, resulting in a loss of all or part of any premium
                      paid.
                             Parallel Pay Securities; PAC Bonds.  Parallel pay
                      CMOs and REMICS are structured to provide payments of
                      principal on each payment date to more than one class.
                      These simultaneous payments are taken into account in
                      calculating the stated maturity date or final distribution
                      date of each class, which must be retired by its stated
                      maturity date or final distribution date, but may be
                      retired earlier. Planned Amortization Class CMOs ("PAC
                      Bonds") generally require payments of a specified amount
                      of principal on each payment date. PAC Bonds are always
                      parallel pay CMOs with the required principal payment on
                      such securities having the highest priority after interest
                      has been paid to all classes.
                             REMICs.  A REMIC is a CMO that qualifies for
                      special tax treatment under the Internal Revenue Code and
                      invests in certain mortgages principally secured by
                      interests in real property. Investors may purchase
                      beneficial interests in REMICs, which are known as
                      "regular" interests, or "residual" interests. Guaranteed
                      REMIC pass-through certificates ("REMIC Certificates")
                      issued by FNMA or FHLMC represent beneficial ownership
                      interests in a REMIC trust consisting principally of
                      mortgage loans or FNMA, FHLMC or GNMA-guaranteed mortgage
                      pass-through certificates.
                             Stripped Mortgage-Backed Securities ("SMBs").  SMBs
                      are usually structured with two classes that receive
                      specified proportions of the monthly interest and
                      principal payments from a pool of mortgage securities. One
                      class may receive all of the interest payments and is thus
                      termed an interest-only class ("IO"), while the
 
                                       47
<PAGE>   106
 
                      other class may receive all of the principal payments and
                      is thus termed the principal-only class ("PO"). The value
                      of IOs tends to increase as rates rise and decrease as 
                      rates fall; the opposite is true of POs. SMBs are 
                      extremely sensitive to changes in interest rates because 
                      of the impact thereon of prepayment of principal on the 
                      underlying mortgage securities.
 
Mortgage Dollar Rolls Mortgage "dollar rolls" are transactions in which
                      mortgage-backed securities are sold for delivery in the
                      current month and the seller simultaneously contracts to
                      repurchase substantially similar securities on a specified
                      future date. The difference between the sale price and the
                      purchase price (plus any interest earned on the cash
                      proceeds of the sale) is netted against the interest
                      income foregone on the securities sold to arrive at an
                      implied borrowing rate. Alternatively, the sale and
                      purchase transactions can be executed at the same price,
                      with the Portfolio being paid a fee as consideration for
                      entering into the commitment to purchase.
 
Municipal Securities  Municipal securities consist of: (i) debt obligations
                      issued by or on behalf of public authorities to obtain
                      funds to be used for various public facilities, for
                      refunding outstanding obligations, for general operating
                      expenses, and for lending such funds to other public
                      institutions and facilities, and (ii) certain private
                      activity and industrial development bonds issued by or on
                      behalf of public authorities to obtain funds to provide
                      for the construction, equipment, repair or improvement of
                      privately operated facilities.
 
Obligations of
Supranational 
Entities              Obligations of supranational entities are obligations of
                      entities established through the joint participation of
                      several governments, such as the Asian Development Bank,
                      the Inter-American Development Bank, International Bank
                      for Reconstruction and Development (World Bank), African
                      Development Bank, European Economic Community, European
                      Investment Bank and the Nordic Investment Bank.
 
Options               A put option gives the purchaser of the option the right
                      to sell, and the writer of the option the obligation to
                      buy, the underlying security at any time during the option
                      period. A call option gives the purchaser of the option
                      the right to buy, and the writer of the option the
                      obligation to sell, the underlying security at any time
                      during the option period. The premium paid to the writer
                      is the consideration for undertaking the obligations under
                      the option contract. The initial purchase (sale) of an
                      option contract is an "opening transaction." In order to
                      close out an option position, a Portfolio may enter into a
                      "closing transaction," which is simply the sale (purchase)
                      of an option contract on the same security with the same
                      exercise price and expiration date as the option contract
                      originally opened. If a Portfolio is unable to effect a
                      closing purchase transaction with respect to an option it
                      has written, it will not be able to sell the underlying
                      security until the option expires or the Portfolio
                      delivers the security upon exercise.
 
                                       48
<PAGE>   107
 
                             A Portfolio may purchase put and call options to
                      protect against a decline in the market value of the
                      securities in its portfolio or to anticipate an increase
                      in the market value of securities that the Portfolio may
                      seek to purchase in the future. A Portfolio purchasing put
                      and call options pays a premium therefor. If price
                      movements in the underlying securities are such that
                      exercise of the options would not be profitable for the
                      Portfolio, loss of the premium paid may be offset by an
                      increase in the value of the Portfolio's securities or by
                      a decrease in the cost of acquisition of securities by the
                      Portfolio.
                             A Portfolio may write covered call options as a
                      means of increasing the yield on its fund and as a means
                      of providing limited protection against decreases in its
                      market value. When a fund sells an option, if the
                      underlying securities do not increase or decrease to a
                      price level that would make the exercise of the option
                      profitable to the holder thereof, the option generally
                      will expire without being exercised and the Portfolio will
                      realized as profit the premium received for such option.
                      When a call option written by a Portfolio is exercised,
                      the Portfolio will be required to sell the underlying
                      securities to the option holder at the strike price, and
                      will not participate in any increase in the price of such
                      securities above the strike price. When a put option
                      written by a Portfolio is exercised, the Portfolio will be
                      required to purchase the underlying securities at the
                      strike price, which may be in
                      excess of the market value of such securities.
                             A Portfolio may purchase and write options on an
                      exchange or over-the-counter. Over-the-counter options
                      ("OTC options") differ from exchange-traded options in
                      several respects. They are transacted directly with
                      dealers and not with a clearing corporation, and therefore
                      entail the risk of non-performance by the dealer. OTC
                      options are available for a greater variety of securities
                      and for a wider range of expiration dates and exercise
                      prices than are available for exchange-traded options.
                      Because OTC options are not traded on an exchange, pricing
                      is done normally by reference to information from a market
                      maker. It is the position of the SEC that OTC options are
                      generally illiquid.
                             A Portfolio may purchase and write put and call
                      options on foreign currencies (traded on U.S. and foreign
                      exchanges or over-the-counter markets) to manage its
                      exposure to exchange rates. Call options on foreign
                      currency written by a Portfolio will be "covered," which
                      means that the Portfolio will own an equal amount of the
                      underlying foreign currency. With respect to put options
                      on foreign currency written by a Portfolio, the Portfolio
                      will establish a segregated account with its Custodian
                      consisting of cash or liquid, high grade debt securities
                      in an amount equal to the amount the Portfolio would be
                      required to pay upon exercise of the put.
                             A Portfolio may purchase and write put and call
                      options on indices and enter into related closing
                      transactions. Put and call options on indices are similar
                      to options on securities except that options on an index
                      give the holder the right to
 
                                       49
<PAGE>   108
 
                      receive, upon exercise of the option, an amount of cash 
                      if the closing level of the underlying index is greater 
                      than (or less than, in the case of puts) the exercise 
                      price of the option. This amount of cash is equal to the 
                      difference between the closing price of the index and 
                      the exercise price of the option, expressed in dollars 
                      multiplied by a specified number. Thus, unlike options on
                      individual securities, all settlements are in cash, and 
                      gain or loss depends on price movements in the particular
                      market represented by the index generally, rather than 
                      the price movements in individual securities. A Portfolio
                      may choose to terminate an option position by entering 
                      into a closing transaction. The ability of a Portfolio 
                      to enter into closing transactions depends upon the
                      existence of a liquid secondary market for such 
                      transactions.
                             All options written on indices must be covered.
                      When a Portfolio writes an option on an index, it will
                      establish a segregated account containing cash or liquid,
                      high grade debt securities with its custodian in an amount
                      at least equal to the market value of the option and will
                      maintain the account while the option is open or will
                      otherwise cover the transaction.
                             Risk Factors:  Risks associated with options
                      transactions include: (1) the success of a hedging
                      strategy may depend on an ability to predict movements in
                      the prices of individual securities, fluctuations in
                      markets and movements in interest rates; (2) there may be
                      an imperfect correlation between the movement in prices of
                      options and the securities underlying them; (3) there may
                      not be a liquid secondary market for options; and (4)
                      while a Portfolio will receive a premium when it writes
                      covered call options, it may not participate fully in a
                      rise in the market value of the underlying security.
 
Receipts              Receipts are sold as zero coupon securities, which means
                      that they are sold at a substantial discount and redeemed
                      at face value at their maturity date without interim cash
                      payments of interest or principal. This discount is
                      accreted over the life of the security, and such accretion
                      will constitute the income earned on the security for both
                      accounting and tax purposes. Because of these features,
                      such securities may be subject to greater interest rate
                      volatility than interest paying investments. See also
                      "Taxes."
 
REITs                 REITs are trusts that invest primarily in commercial real
                      estate or real estate-related loans. The value of
                      interests in REITs may be affected by the value of the
                      property owned or the quality of the mortgages held by the
                      trust.
 
Repurchase Agreements Repurchase agreements are agreements by which a Portfolio
                      obtains a security and simultaneously commits to return
                      the security to the seller at an agreed upon price
                      (including principal and interest) on an agreed upon date
                      within a number of days from the date of purchase.
                      Repurchase agreements are considered loans under the 1940
                      Act.
 
                                       50
<PAGE>   109
 
Securities Lending    In order to generate additional income, a Portfolio may
                      lend securities which it owns pursuant to agreements
                      requiring that the loan be continuously secured by
                      collateral consisting of cash or securities of the U.S.
                      Government or its agencies equal to at least 100% of the
                      market value of the loaned securities. A Portfolio
                      continues to receive interest on the loaned securities
                      while simultaneously earning interest on the investment of
                      cash collateral. Collateral is marked to market daily.
                      There may be risks of delay in recovery of the securities
                      or even loss of rights in the collateral should the
                      borrower of the securities fail financially or become
                      insolvent.
 
Securities of
Foreign Issuers       There are certain risks connected with investing in
                      foreign securities. These include risks of adverse
                      political and economic developments (including possible
                      governmental seizure or nationalization of assets), the
                      possible imposition of exchange controls or other
                      governmental restrictions, less uniformity in accounting
                      and reporting requirements, the possibility that there
                      will be less information on such securities and their
                      issuers available to the public, the difficulty of
                      obtaining or enforcing court judgments abroad,
                      restrictions on foreign investments in other
                      jurisdictions, difficulties in effecting repatriation of
                      capital invested abroad and difficulties in transaction
                      settlements and the effect of delay on shareholder equity.
                      Foreign securities may be subject to foreign taxes, and
                      may be less marketable than comparable U.S. securities.
                      The value of a Portfolio's investments denominated in
                      foreign currencies will depend on the relative strengths
                      of those currencies and the U.S. dollars, and a Portfolio
                      may be affected favorably or unfavorably by changes in the
                      exchange rates or exchange control regulations between
                      foreign currencies and the U.S. dollar. Changes in foreign
                      currency exchange rates also may affect the value of
                      dividends and interest earned, gains and losses realized
                      on the sale of securities and net investment income and
                      gains if any, to be distributed to shareholders by a
                      Portfolio. Furthermore, emerging market countries may have
                      less stable political environments than more developed
                      countries. Also, it may be more difficult to obtain a
                      judgment in a court outside the United States.
 
Short Sales           A Portfolio may sell securities short against the box. A
                      short sale is "against the box" if at all times during
                      which the short position is open, the Portfolio owns at
                      least an equal amount of the securities or securities
                      convertible into, or exchangeable without further
                      consideration for, securities of the same issue as the
                      securities that are sold short.
 
Swaps, Caps, Floors
and Collars           Interest rate swaps, mortgage swaps, currency swaps and
                      other types of swap agreements such as caps, floors and
                      collars are designed to permit the purchaser to preserve a
                      return or spread on a particular investment or portion of
                      its portfolio, and to protect against any increase in the
                      price of securities a Portfolio anticipates purchasing at
                      a later date. In a typical interest rate swap, one party
                      agrees to make
 
                                       51
<PAGE>   110
 
                      regular payments equal to a floating interest rate times 
                      a "notional principalamount," in return for payments 
                      equal to a fixed rate times the same amount, for a 
                      specific period of time. Swaps may also depend on other 
                      prices or rates, such as the value of an index or 
                      mortgage prepayment rates.
                             In a typical cap or floor agreement, one party
                      agrees to make payments only under specified
                      circumstances, usually in return for payment of a fee by
                      the other party.
                             Swap agreements will tend to shift the Fund's
                      investment exposure from one type of investment to
                      another. Depending on how they are used, swap agreements
                      may increase or decrease the overall volatility of the
                      Fund's investment and their share price and yield.
 
U.S. Government Agency
Obligations           Obligations issued or guaranteed by agencies of the U.S.
                      Government, including, among others, the Federal Farm
                      Credit Bank, the Federal Housing Administration and the
                      Small Business Administration, and obligations issued or
                      guaranteed by instrumentalities of the U.S. Government,
                      including, among others, the Federal Home Loan Mortgage
                      Corporation, the Federal Land Banks and the U.S. Postal
                      Service. Some of these securities are supported by the
                      full faith and credit of the U.S. Treasury (e.g., GNMA
                      securities), and others are supported by the right of the
                      issuer to borrow from the Treasury (e.g., Federal Farm
                      Credit Bank securities), while still others are supported
                      only by the credit of the instrumentality (e.g., FNMA
                      securities).
 
U.S. Treasury
Obligations           U.S. Treasury obligations consist of bills, notes and
                      bonds issued by the U.S. Treasury, as well as separately
                      traded interest and principal component parts of such
                      obligations known as Separately Traded Registered Interest
                      and Principal Securities ("STRIPS") that are transferable
                      through the Federal book-entry system. STRIPS are sold as
                      zero coupon securities.
 
U.S. Treasury         U.S. Treasury receipts are interests in separately traded
Receipts              interest and principal component parts of U.S. Treasury
                      obligations that are issued by banks or brokerage firms
                      and are created by depositing U.S. Treasury notes and
                      obligations into a special account at a custodian bank.
                      The custodian holds the interest and principal payments
                      for the benefit of the registered owners of the
                      certificates of receipts. The custodian arranges for the
                      issuance of the certificates or receipts evidencing
                      ownership and maintains the register.
 
Variable and Floating
Rate Instruments      Certain obligations may carry variable or floating rates
                      of interest and may involve conditional or unconditional
                      demand features. Such instruments bear interest at rates
                      which are not fixed, but which vary with changes in
                      specified market rates or indices. The interest rates on
                      these securities may be reset daily, weekly, quarterly or
                      some other reset period, and may have a floor or ceiling
                      on interest rate changes.
 
                                       52
<PAGE>   111
 
Warrants              Warrants are instruments giving holders the right, but not
                      the obligation, to buy equity or fixed income securities
                      of a company at a given price during a specified period.
 
When-Issued and Delayed
Delivery Securities   When-issued or delayed delivery transactions involve the
                      purchase of an instrument with payment and delivery taking
                      place in the future. Delivery of and payment for these
                      securities may occur a month or more after the date of the
                      purchase commitment.
 
Yankee Obligations    Yankee obligations ("Yankees") are U.S. dollar-denominated
                      instruments of foreign issuers who either register with
                      the Securities and Exchange Commission or issue securities
                      under Rule 144A of the Securities Exchange Act of 1933.
                      These consist of debt securities (including preferred or
                      preference stock of non-governmental issuers),
                      certificates of deposit, fixed time deposits and bankers'
                      acceptances issued by foreign banks, and debt obligations
                      of foreign governments or their subdivisions, agencies and
                      instrumentalities, international agencies and
                      supranational entities.
 
Zero Coupon, Pay In-Kind
and Deferred Payment
Securities            Zero coupon securities are securities that are sold at a
                      discount to par value and securities on which interest
                      payments are not made during the life of the security.
                      Upon maturity, the holder is entitled to receive the par
                      value of the security. While interest payments are not
                      made on such securities, holders of such securities are
                      deemed to have received "phantom income" annually. Because
                      a Portfolio will distribute its "phantom income" to
                      shareholders, to the extent that shareholders elect to
                      receive dividends in cash rather than reinvesting such
                      dividends in additional shares, a Portfolio will have
                      fewer assets with which to purchase income producing
                      securities. Zero coupon, pay-in-kind and deferred payment
                      securities may be subject to greater fluctuation in value
                      and lesser liquidity in the event of adverse market
                      conditions that comparably rated securities paying cash
                      interest at regular interest payment periods.
 
                             Additional information on other permitted
                      investments can be found in the Trust's Statement of
                      Additional Information and in the Underlying Portfolios'
                      Prospectuses and Statements of Additional Information.
 
                                       53
<PAGE>   112
 
TABLE OF CONTENTS
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                                 <C>
Fund Expenses (Class A Shares)....................     2
Indirect Expenses.................................     3
Financial Highlights..............................     4
Investment Objectives and Policies of the Funds...     5
General Investment Policies of the Funds..........     9
Risk Factors of the Funds.........................    10
Investment Limitations of the Funds...............    11
Portfolio Turnover of the Funds...................    11
Investment Goals of the Underlying Portfolios.....    12
Investment Objectives and Policies of the
  Underlying Portfolios...........................    12
General Investment Policies of the Underlying
  Portfolios......................................    22
Risk Factors of the Underlying Portfolios.........    24
Fundamental Limitations of the Underlying
  Portfolios......................................    24
The Adviser and Manager of the Funds..............    25
The Advisers and Sub-Advisers to the Underlying
  Portfolios......................................    26
Transfer Agent....................................    36
Distribution of Fund Shares and Shareholder
  Servicing.......................................    36
Purchase and Redemption of Shares.................    37
Performance.......................................    39
Taxes.............................................    40
General Information...............................    41
Description of Permitted Investments and Risk
  Factors of the Underlying Portfolios............    43
</TABLE>
 
                                       54
<PAGE>   113
   
                 PRELIMINARY STATEMENT OF ADDITIONAL INFORMATION
                            DATED SEPTEMBER 16, 1996
                              SUBJECT TO COMPLETION

         THE INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OF AMENDMENT.
         A REGISTRATION STATEMENT RELATING TO, AMONG OTHER THINGS, THIS
         STATEMENT OF ADDITIONAL INFORMATION HAS BEEN FILED WITH THE SECURITIES
         AND EXCHANGE COMMISSION. SECURITIES OF THE FUNDS REFERENCED IN THIS
         STATEMENT OF ADDITIONAL INFORMATION MAY NOT BE SOLD NOR MAY OFFERS TO
         BUY SUCH SECURITIES BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION
         STATEMENT BECOMES EFFECTIVE. THIS STATEMENT OF ADDITIONAL INFORMATION
         SHALL NOT CONSTITUTE AN OFFER TO SELL OR THE SOLICITATION OF AN OFFER
         TO BUY NOR SHALL THERE BE ANY SALE OF SECURITIES REFERENCED HEREIN IN
         ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE UNLAWFUL
         PRIOR TO SUCH REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS
         OF ANY SUCH STATE.
    


SEI ASSET ALLOCATION TRUST

                  INVESTMENT ADVISER:
                           SEI FINANCIAL MANAGEMENT CORPORATION

   
                  MANAGER:
                           SEI FUND MANAGEMENT
    

                  DISTRIBUTOR:
                           SEI FINANCIAL SERVICES COMPANY
   
This STATEMENT OF ADDITIONAL INFORMATION is not a Prospectus. It is intended to
provide additional information regarding the activities and operations of the
Trust, and should be read in conjunction with the Trust's Prospectus dated
December 1, 1996. A Prospectus may be obtained upon request and without charge
by writing the Trust's distributor, SEI Financial Services Company, at 680 East
Swedesford Road, Wayne, Pennsylvania 19087-1658, or by calling 1-800-342-5734.
    

                                    TABLE OF CONTENTS

The Trust...............................................................S-2
   
Description of Permitted Investments of the Underlying Portfolios.......S-2
    
Investment Limitations of the Funds....................................S-12
   
Investment Limitations of the Underlying Portfolios....................S-14
    
The Manager ...........................................................S-18
The Investment Adviser to the Funds....................................S-19
   
The Advisers and Sub-Advisers To the Underlying Portfolios.............S-20
    
Portfolio Managers of the Underlying Portfolios........................S-20
Distribution...........................................................S-23
Trustees and Officers of the Trust.....................................S-24
Performance............................................................S-26
Purchase and Redemption of Shares......................................S-26
Shareholder Services...................................................S-27
Taxes..................................................................S-28
Portfolio Transactions.................................................S-29
Description of Shares..................................................S-30
Limitation of Trustees' Liability......................................S-30
Voting.................................................................S-30
Shareholder Liability..................................................S-31
Experts................................................................S-31
Financial Statements...................................................S-31
Appendix...............................................................S-39

   
December 1, 1996
    

SEI-F-113-01
<PAGE>   114



THE TRUST

   
SEI Asset Allocation (the "Trust") is an open-end management investment company
that currently consists of the following seven separate investment portfolios
(each a "Fund" and, together, the "Funds"): Diversified Conservative Income
Fund, Diversified Conservative Fund, Diversified Global Moderate Growth Fund,
Diversified Moderate Growth Fund, Diversified Global Growth Fund (formerly the
Diversified Growth Fund), Diversified Global Stock Fund, and Diversified U.S.
Stock Fund. The Funds invest in shares of certain portfolios (the "Underlying
Portfolios") of SEI Liquid Asset Trust ("SLAT"), SEI Institutional Managed Trust
("SIMT") and SEI International Trust ("SIT"), each of which is managed by SEI
Financial Management Corporation ("SFM"), the Trust's investment adviser.
(Together, SLAT, SIMT and SIT are the "Underlying Trusts.") The Funds may invest
in the following Underlying Portfolios: SIMT Large Cap Growth Portfolio, SIMT
Large Cap Value Portfolio, SIMT Small Cap Growth Portfolio, SIMT Small Cap Value
Portfolio, SIT International Equity Portfolio, SIT Emerging Markets Equity
Portfolio, SIMT Core Fixed Income Portfolio, SIMT High Yield Bond Portfolio, SIT
International Fixed Income Portfolio and SLAT Prime Obligation Portfolio.

The Trust was established as a Massachusetts business trust pursuant to a
Declaration of Trust dated November 20, 1995. The Declaration of Trust permits
the Trust to offer separate series ("portfolios") of units of beneficial
interest ("shares") and separate classes of portfolios. Except for differences
between the Class A shares and Class D shares pertaining to distribution and
shareholder servicing fees, voting rights, dividends and transfer agent
expenses, each share of each Fund represents an equal proportionate interest in
that Fund with each other share of that Fund.

This Statement of Additional Information relates to the following Funds:
Diversified Conservative Income Fund, Diversified Conservative Fund, Diversified
Global Moderate Growth Fund, Diversified Moderate Growth Fund, Diversified
Global Growth Fund, Diversified Global Stock Fund, and Diversified U.S. Stock
Fund. Shareholders may purchase shares in the Funds through two separate
classes, Class A and Class D, which provide for variations in distribution and
shareholder servicing costs, transfer agent fees, voting rights and dividends.
    

DESCRIPTION OF PERMITTED INVESTMENTS OF THE UNDERLYING PORTFOLIOS

AMERICAN DEPOSITORY RECEIPTS ("ADRS") Generally, ADRs are designed for trading
in the U.S. securities market, EDRs are designed for trading in European
securities markets and GDRs are designed for trading in non-U.S. securities
markets. ADRs, EDRs, CDRs and GDRs may be available for investment through
"sponsored" or "unsponsored" facilities. A sponsored facility is established
jointly by the issuer of the security underlying the receipt and a depositary,
whereas an unsponsored facility may be established by a depositary without
participation by the issuer of the receipt's underlying security. Holders of an
unsponsored depositary receipt generally bear all the costs of the unsponsored
facility. The depositary of an unsponsored facility frequently is under no
obligation to distribute shareholder communications received from the issuer of
the deposited security or to pass through to the holders of the receipts voting
rights with respect to the deposited securities.

ASSET-BACKED SECURITIES Asset-backed securities are securities backed by
automobile, credit-card or other types of receivables and in securities backed
by other types of assets. Credit support for asset-backed securities may be
based on the underlying assets and/or provided by a third party through credit
enhancements. Credit enhancement techniques include letters of credit, insurance
bonds, limited guarantees (which are generally provided by the issuer),
senior-subordinated structures and over-collateralization.

Asset-backed securities are not issued or guaranteed by the United States
Government or its agencies or instrumentalities; however, the payment of
principal and interest on such obligations may be guaranteed up to certain
amounts for a certain period by a letter of credit issued by a financial
institution (such as a bank or insurance company) unaffiliated with the issuers
of such securities. The purchase of asset-backed securities raises risk
considerations peculiar to the financing of the instruments underlying such
securities. For example, there is a risk that another party could acquire an
interest in the 

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obligations superior to that of the holders of the asset-backed securities.
There also is the possibility that recoveries on repossessed collateral may not,
in some cases, be available to support payments on those securities.
Asset-backed securities entail prepayment risk, which may vary depending on the
type of asset, but is generally less than the prepayment risk associated with
the mortgage-backed securities. In addition, credit card receivables are
unsecured obligations of the card holders.

BANK NOTES Bank notes are notes used to represent debt obligations issued by
banks in large denominations.

BANKERS' ACCEPTANCES Bankers' acceptances are bills of exchange or time drafts
drawn on and accepted by a commercial bank. Bankers' acceptances are issued by
corporations to finance the shipment and storage of goods. Maturities are 
generally six months or less.

CERTIFICATES OF DEPOSIT Certificates of deposit are interest-bearing instruments
with a specific maturity. They are issued by banks and savings and loan
institutions in exchange for the deposit of funds and normally can be traded in
the secondary market prior to maturity. Certificates of deposit with penalties
for early withdrawal will be considered illiquid.

COMMERCIAL PAPER Commercial paper is a term used to describe unsecured
short-term promissory notes issued by banks, municipalities, corporations and
other entities. Maturities on these issues vary, generally from a few to 270
days.

CONVERTIBLE SECURITIES Convertible securities, such as rights, bonds, notes and
preferred stocks, which are convertible into or exchange for common stocks, have
characteristics similar to both fixed income and equity securities. Because of
the conversion feature, the market value of convertible securities tends to move
together with the market value of the underlying stock. As a result, an
Underlying Portfolio's selection of convertible securities is based, to a great
extent, on the potential for capital appreciation that may exist in the
underlying stock.

CORPORATE ZERO COUPON SECURITIES Corporate zero coupon securities are: (i) notes
or debentures which do not pay current interest and are issued at substantial
discounts from par value; or (ii) notes or debentures that pay no current
interest until a stated date one or more years into the future, after which date
the issuer is obligated to pay interest until maturity, usually at a higher rate
than if interest were payable from the date of issuance and may also make
interest payments in kind (e.g., with identical zero coupon securities). Such
corporate zero coupon securities, in addition to the risks identified above, are
subject to the risk of the issuer's failure to pay interest and repay principal
in accordance with the terms of the obligation.

   
FIXED INCOME SECURITIES Fixed income securities with longer maturities tend to
produce higher yields, the prices of longer maturity securities and are also
subject to greater market fluctuations as a result of changes in interest rates.
Changes by recognized agencies in the rating of any fixed income security and in
the ability of an issuer to make payments of interest and principal will also
affect the value of these investments. Changes in the value of portfolio
securities will not affect cash income derived from these securities but will
affect an Underlying Portfolio's net asset value.
    

FOREIGN SECURITIES Foreign securities are securities issued by non-U.S. issuers.
Certain of the Underlying Portfolios may invest in U.S. dollar denominated
obligations or securities of foreign issuers. Permissible investments may
consist of obligations of foreign branches of U.S. banks and foreign banks,
including European Certificates of Deposit, European Time Deposits, Canadian
Time Deposits, Yankee Certificates of Deposit and investments in Canadian
Commercial Paper and Europaper. These instruments may subject the Underlying
Portfolio to investment risks that differ in some respects from those related to
investments in obligations of U.S. domestic issuers. Such risks include future
adverse political and economic developments, the possible imposition of
withholding taxes on interest or other income, possible seizure,
nationalization, or expropriation of foreign deposits, the possible
establishment of exchange controls or taxation at the source, greater
fluctuations in value due to changes in the exchange rates, or the adoption of
other foreign 

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governmental restrictions which might adversely affect the payment of principal
and interest on such obligations. Such investments may also entail higher
custodial fees and sales commissions than domestic investments. Foreign issuers
of securities or obligations are often subject to different accounting treatment
and engage in business practices different from those respecting domestic
issuers of similar securities or obligations. Foreign branches of U.S. banks and
foreign banks may be subject to less stringent reserve requirements than those
applicable to domestic branches of U.S. banks. The yankee obligations selected
for the Portfolios will adhere to the same quality standards as those utilized
for the selection of domestic debt obligations.

Some securities issued by foreign governments or their subdivisions, agencies or
instrumentalities may not be backed by the full faith and credit of the foreign
government.

FORWARD FOREIGN CURRENCY CONTRACTS Forward Foreign Currency Contracts are
contracts which involve an obligation to purchase or sell a specified currency
at a future date at a price set at the time of the contract. Forward currency
contracts do not eliminate fluctuations in the values of portfolio securities
but rather allow an Underlying Portfolio to establish a rate of exchange for a
future point in time. At the maturity of a forward contract, the Portfolio may
either sell a portfolio security and make delivery of the foreign currency, or
it may retain the security and terminate its contractual obligation to deliver
the foreign currency by purchasing an "offsetting" contract with the same
currency trader, obligating it to purchase, on the same maturity date, the same
amount of the foreign currency. The Portfolio may realize a gain or loss from
currency transactions.

When entering into a contract for the purchase or sale of a security in a
foreign currency, an Underlying Portfolio may enter into a foreign forward
currency contract for the amount of the purchase or sale price to protect
against variations, between the date the security is purchased or sold and the
date on which payment is made or received, in the value of the foreign currency
relative to the United States dollar or other foreign currency.

Also, when the Underlying Portfolio's adviser or sub-adviser anticipates that a
particular foreign currency may decline substantially relative to the United
States dollar or other leading currencies, in order to reduce risk, an
Underlying Portfolio may enter into a forward contract to sell, for a fixed
amount, the amount of foreign currency approximating the value of its securities
denominated in such foreign currency. With respect to any such forward foreign
currency contract, it will not generally be possible to match precisely the
amount covered by that contract and the value of the securities involved due to
changes in the values of such securities resulting from market movements between
the date the forward contract is entered into and the date it matures. In
addition, while forward currency contracts may offer protection from losses
resulting from declines in value of a particular foreign currency, they also
limit potential gains which might result from increases in the value of such
currency. An Underlying Portfolio will also incur costs in connection with
forward foreign currency contracts and conversions of foreign currencies into
United States dollars. Some of the Underlying Portfolios may enter into forward
foreign currency contracts.

ILLIQUID SECURITIES The SIT Emerging Markets Equity Portfolio believes that
carefully selected investments in joint ventures, cooperatives, partnerships,
private placements, unlisted securities and other similar situations
(collectively, "special situations") could enhance the Portfolio's capital
appreciation potential. Investments in special situations may be illiquid, as
determined by the Portfolio's advisers based on criteria approved by the Board
of Trustees. To the extent these investments are deemed illiquid, the
Portfolio's investment in them will be consistent with its 10% restriction on
investment in illiquid securities.

LOWER RATED SECURITIES Lower-rated securities are lower-rated bonds commonly
referred to as "junk bonds" or high-yield/high-risk securities. These securities
are rated "Baa" or lower by Moody's Investors Service, Inc. ("Moody's") or "BBB"
or lower by Standard & Poor's Corporation ("S&P"). The SIMT High Yield Bond
Portfolio may invest in securities rated as low as "C" by Moody's or "D" by S&P.
These ratings indicate that the obligations are speculative and may be in
default. In addition, the Portfolio may invest in unrated securities of
comparable quality subject to the restrictions stated in the Portfolio's
Prospectus.


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         CERTAIN RISK FACTORS RELATING TO HIGH-YIELD, HIGH-RISK SECURITIES. The
descriptions below are intended to supplement the discussion in the Portfolio's
Prospectus under "Risk Factors Relating to Investing in Lower Rated Securities."

         GROWTH OF HIGH-YIELD, HIGH-RISK BOND MARKET. The widespread expansion
of government, consumer and corporate debt within the U.S. economy has made the
corporate sector more vulnerable to economic downturns or increased interest
rates. Further, an economic downturn could severely disrupt the market for lower
rated bonds and adversely affect the value of outstanding bonds and the ability
of the issuers to repay principal and interest. The market for lower-rated
securities may be less active, causing market price volatility and limited
liquidity in the secondary market. This may limit the Portfolios' ability to
sell such securities at their market value. In addition, the market for these
securities may be adversely affected by legislative and regulatory developments.
Credit quality in the junk bond market can change suddenly and unexpectedly, and
even recently issued credit ratings may not fully reflect the actual risks
imposed by a particular security.

         SENSITIVITY TO INTEREST RATE AND ECONOMIC CHANGES. Lower rated bonds
are very sensitive to adverse economic changes and corporate developments.
During an economic down turn or substantial period of rising interest rates,
highly leveraged issuers may experience financial stress that would adversely
affect their ability to service their principal and interest payment
obligations, to meet projected business goals, and to obtain additional
financing. If the issuer of a bond defaulted on its obligations to pay interest
or principal or entered into bankruptcy proceedings, the Portfolio may incur
losses or expenses in seeking recovery of amounts owed to it. In addition,
periods of economic uncertainty and change can be expected to result in
increased volatility of market prices of high-yield, high-risk bonds and the
Portfolio's net asset value.

         PAYMENT EXPECTATIONS. High-yield, high-risk bonds may contain
redemption or call provisions. If an issuer exercised these provisions in a
declining interest rate market, the Portfolio would have to replace the security
with a lower yielding security, resulting in a decreased return for investors.
Conversely, a high-yield, high-risk bond's value will decrease in a rising
interest rate market, as will the value of the Portfolio's assets. If the
Portfolio experiences significant unexpected net redemptions, this may force it
to sell high-yield, high-risk bonds without regard to their investment merits,
thereby decreasing the asset base upon which expenses can be spread and possibly
reducing the Portfolio's rate of return.

         LIQUIDITY AND VALUATION. There may be little trading in the secondary
market for particular bonds, which may affect adversely the Portfolio's ability
to value accurately or dispose of such bonds. Adverse publicity and investor
perception, whether or not based on fundamental analysis, may decrease the
values and liquidity of high-yield, high-risk bonds, especially in a thin
market.

         LEGISLATION. Federal laws require the divestiture by federally insured
savings and loan associations of their investments in lower rated bonds and
limit the deductibility of interest by certain corporate issuers of high yield
bonds. These laws could adversely affect the Portfolio's net asset value and
investment practices, the secondary market for high-yield securities, the
financial condition of issuers of these securities and the value of outstanding
high-yield securities.

         TAXES. The Portfolio may purchase debt securities (such as zero-coupon
or pay-in-kind securities) that contain original issue discount. Original issue
discount that accrues in a taxable year is treated as earned by a Portfolio and
therefore is subject to the distribution requirements of the tax code even
though the Portfolio has not received any interest payments on such obligations
during that period. Because the original issue discount earned by the Portfolio
in a taxable year may not be represented by cash income, the Portfolio may have
to dispose of other securities and use the proceeds to make distributions to
shareholders.

MORTGAGE-BACKED SECURITIES Mortgage-backed securities are securities which
represent pools of mortgage loans assembled for sale to investors by various
governmental agencies, such as the Government National Mortgage Association
("GNMA") and government-related organizations such as the Federal National
Mortgage Association


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("FNMA") and the Federal Home Loan Mortgage Corporation ("FHLMC"), as well as by
non-governmental issuers such as commercial banks, savings and loan
institutions, mortgage bankers, and private mortgage insurance companies.
Certain Underlying Portfolios may, consistent with their respective investment
objectives and policies, invest in mortgage-backed securities issued or
guaranteed by the U.S. Government or its agencies or instrumentalities. Although
certain mortgage-backed securities are guaranteed by a third party or otherwise
similarly secured, the market value of the security, which may fluctuate, is not
so secured. If an Underlying Portfolio purchases a mortgage-backed security at a
premium, that portion may be lost if there is a decline in the market value of
the security whether resulting from changes in interest rates or prepayments in
the underlying mortgage collateral. As with other interest-bearing securities,
the prices of such securities are inversely affected by changes in interest
rates. However, though the value of a mortgage-backed security may decline when
interest rates rise, the converse is not necessarily true since in periods of
declining interest rates the mortgages underlying the securities are prone to
prepayment. Because of these unpredictable prepayment characteristics, it is
often not possible to predict accurately the average life or realized yield of a
particular issue. For this and other reasons, a mortgage-backed security's
stated maturity may be shortened by unscheduled prepayments on the underlying
mortgages and, therefore, it is not possible to predict accurately the
security's investment return to an Underlying Portfolio. In addition, regular
payments received in respect of mortgage-backed securities include both interest
and principal. No assurance can be given as to the return an Underlying
Portfolio will receive when these amounts are reinvested.

An Underlying Portfolio may also invest in collateralized mortgage obligations
("CMOs") structured on pools of mortgage pass-through certificates or mortgage
loans. In a CMO, series of bonds or certificates are usually issued in multiple
classes. Principal and interest paid on the underlying mortgage assets may be
allocated among the several classes of a series of a CMO in a variety of ways.
Each class of a CMO, often referred to as a "tranche," is issued with a specific
fixed or floating coupon rate and has a stated maturity or final distribution
date. CMOs will be purchased only if rated in the three highest rating
categories by a nationally recognized statistical rating organization such as
Moody's or S&P. For purposes of determining the average maturity of a
mortgage-backed security in its investment portfolio, the Underlying Portfolios
may utilize the expected average life of the security, as estimated in good
faith by the Portfolio's adviser and sub-advisers, and will not invest in
mortgage-backed securities with an expected average maturity of over seven
years.

Stripped mortgage-backed securities ("SMBs") are mortgage-backed securities
where the interest portion of the security has been stripped from the principal
portion of the security, and the two component parts are sold separately. SMBs
are extremely sensitive to changes in interest rates because of the impact
thereon of prepayment of principal on the underlying mortgage securities. The
market for SMBs is not as fully developed as other markets; SMBs, therefore, may
be illiquid.

There are a number of important differences among the agencies and
instrumentalities of the U.S. Government that issue mortgage-backed securities
and among the securities that they issue. Mortgage-backed securities issued by
the GNMA include GNMA Mortgage Pass-Through Certificates (also known as "Ginnie
Maes") that are guaranteed as to the timely payment of principal and interest by
GNMA and such guarantee is backed by the full faith and credit of the United
States. GNMA is a wholly-owned U.S. Government corporation within the Department
of Housing and Urban Development. GNMA certificates also are supported by the
authority of GNMA to borrow funds from the U.S. Treasury to make payments under
its guarantee. Mortgage-backed securities issued by the FNMA include FNMA
Guaranteed Mortgage Pass-Through Certificates (also known as "Fannie Maes") that
are solely the obligations of the FNMA and are not backed by or entitled to the
full faith and credit of the United States. The FNMA is a government-sponsored
organization owned entirely by private stockholders. Fannie Maes are guaranteed
as to timely payment of the principal and interest by FNMA. Mortgage-backed
securities issued by the FHLMC include FHLMC Mortgage Participation Certificates
(also known as "Freddie Macs" or "PC's"). The FHLMC is a corporate
instrumentality of the United States, created pursuant to an Act of Congress,
which is owned entirely by Federal Home Loan Banks. Freddie Macs are not
guaranteed by the United States or by any Federal Home Loan Banks and do not
constitute a debt or obligation of the United States or of any Federal Home Loan
Bank. Freddie Macs entitle the holder to timely payment of interest, which is
guaranteed by the FHLMC. The FHLMC guarantees either ultimate collection or
timely payment of all principal payments on the









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underlying mortgage loans. When the FHLMC does not guarantee timely payment of
principal, FHLMC may remit the amount due on account of its guarantee of
ultimate payment of principal at any time after default on an underlying
mortgage, but in no event later than one year after it becomes payable. For
FHLMC REMIC Certificates, FHLMC guarantees the timely payment of interest, and
also guarantees the payment of principal as payments are required to be made on
the underlying mortgage participation certificates. FNMA REMIC Certificates are
issued and guaranteed as to timely distribution of principal and interest by
FNMA.

MORTGAGE DOLLAR ROLLS Mortgage dollar rolls may be renewed prior to cash
settlement and initially may involve only a firm commitment agreement by the
Portfolio to buy a security. If the broker-dealer to whom the Portfolio sells
the security becomes insolvent, the Portfolio's right to repurchase the security
may be restricted. Other risks involved in entering into mortgage dollar rolls
include the risk that the value of the security may change adversely over the
term of the mortgage dollar roll and that the security the Portfolio is required
to repurchase may be worth less than the security that the Portfolio originally
held.

To avoid any leveraging concerns, a Portfolio will place U.S. Government or
other liquid, high grade debt securities in a segregated account with its
Custodian in an amount sufficient to cover its repurchase obligation.

MUNICIPAL LEASES Municipal leases are instruments, or participations in
instruments, issued in connection with lease obligations or installment purchase
contract obligations of municipalities ("municipal lease obligations"). Although
municipal lease obligations do not constitute general obligations of the issuing
municipality, a lease obligation is ordinarily backed by the municipality's
covenant to budget for, appropriate funds for, and make the payments due under
the lease obligation. However, certain lease obligations contain
"non-appropriation" clauses, which provide that the municipality has no
obligation to make lease or installment purchase payments in future years unless
money is appropriated for such purpose in the relevant years. Municipal lease
obligations are a relatively new for of financing, and the market for such
obligations is still developing. Municipal leases will be treated as liquid only
if they satisfy criteria set forth in guidelines established by the Board of
Trustees, and there can be no assurance that a market will exist or continue to
exist for any municipal lease obligation.

MUNICIPAL SECURITIES Municipal Securities include general obligation bonds
backed by the taxing power of the issuing municipality, revenue bonds backed by
the revenues of a project or facility (tolls from a bridge, for example), and
certificates of participation, which represent an interest in an underlying
obligation or commitment, such as an obligation issued in connection with a
leasing arrangement. The payment of principal and interest on private activity
and industrial development bonds generally is dependent solely on the ability of
a facility's user to meet its financial obligations and the pledge, if any, of
real and personal property as security for such payment.

Municipal securities include both municipal notes and municipal bonds. Municipal
notes include general obligation notes, tax anticipation notes, revenue
anticipation notes, bond anticipation notes, certificates of indebtedness,
demand notes and construction loan notes and participation interests in
municipal notes. Municipal bonds include general obligation bonds, revenue or
special obligation bonds, private activity and industrial development bonds and
participation interests in municipal bonds.

OPTIONS Options are contracts that give one of the parties to the contract the
right to buy or sell the security that is subject to the option at a stated
price during the option period, and obligates the other party to the contract to
buy or sell such security at the stated price during the option period.

The Underlying Portfolios may trade put and call options on stocks and stock
indices to a limited extent, as the Adviser or Sub-Adviser determines is
appropriate in seeking an Underlying Portfolio's investment objective, and
except as restricted by each Underlying Portfolio's investment limitations as
set forth below. See "Investment Limitations."









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A put option gives the purchaser (an Underlying Portfolio) the right to sell,
and imposes on the writer an obligation to buy, the underlying security at the
exercise price during the option period. The advantage to an Underlying
Portfolio of buying the protective put is that if the price of the security
falls during the option period, the Underlying Portfolio may exercise the put
and receive the higher exercise price for the security. However, if the security
rises in value, the Underlying Portfolio will have paid a premium for the put,
which will expire unexercised.

A call option gives the purchaser the right to buy and imposes on the writer (an
Underlying Portfolio) the obligation to sell, the underlying security at the
exercise price during the option period. The advantage to an Underlying
Portfolio of writing covered call options is that the Underlying Portfolio
receives a premium, which is additional income. However, if the security rises
in value, an Underlying Portfolio may not fully participate in the market
appreciation. During the option period, a covered call option writer may be
assigned an exercise notice by the broker-dealer through whom such call option
was sold requiring the writer to deliver the underlying security against payment
of the exercise price. An Underlying Portfolio's obligation as the writer of a
covered call is terminated upon the expiration of the option period or at such
earlier time in which the writer effects a closing purchase transaction. As
noted above, a closing purchase transaction is one in which an Underlying
Portfolio, when obligated as a writer of an option, terminates its obligation by
purchasing an option of the same series as the option previously written. A
closing purchase transaction cannot be effected with respect to an option once
the option writer has received an exercise notice for such option.

The market value of an option generally reflects the market price of an
underlying security. Other principal factors affecting market value include
supply and demand, interest rates, the pricing volatility of the underlying
security and the time remaining until the expiration date. The Underlying
Portfolios will engage in option transactions only as hedging transactions and
not for speculative purposes.

PAY-IN-KIND SECURITIES Pay-in-kind securities are securities which, at the
issuer's option, pay interest in either cash or additional securities for a
specified period. Pay-in-kind bonds, like zero coupon bonds, are designed to
give an issuer flexibility in managing cash flow. Pay-in-kind bonds are expected
to reflect the market value of the underlying debt plus an amount representing
accrued interest since the last payment. Pay-in-kind bonds are usually less
volatile than zero coupon bonds, but more volatile than cash pay securities.

PRIVATIZATIONS Privatizations are foreign government programs for selling all or
part of the interests in government owned or controlled enterprises. The ability
of a U.S. entity to participate in privatizations in certain foreign countries
may be limited by local law, or the terms on which a Portfolio may be permitted
to participate may be less advantageous than those applicable for local
investors. There can be no assurance that foreign governments will continue to
sell their interests in companies currently owned or controlled by them or that
privatization programs will be successful.

RECEIPTS Receipts are interests in separately traded interest and principal
component parts of U.S. Government obligations that are issued by banks or
brokerage firms and are created by depositing U.S. Government obligations into a
special account at a custodian bank. The custodian holds the interest and
principal payments for the benefit of the registered owners of the certificates
or receipts. The custodian arranges for the issuance of the certificates or
receipts evidencing ownership and maintains the register. Receipts include
"Treasury Receipts" ("TRs"), "Treasury Investment Growth Receipts" ("TIGRs"),
and "Certificates of Accrual on Treasury Securities" ("CATS"). TIGRs and CATS
are interests in private proprietary accounts, while TRs and STRIPS (See "U.S.
Treasury Obligations") are interests in accounts sponsored by the U.S. Treasury.
Receipts are sold as zero coupon securities; for more information, see "Zero
Coupon Securities."

   
REPURCHASE AGREEMENTS Repurchase agreements are agreements under which
securities are acquired from a securities dealer or bank subject to resale on an
agreed upon date and at an agreed upon price which includes principal and
interest. The Underlying Portfolio or its agent will have actual or constructive
possession of the securities held as collateral for the repurchase agreement. An
Underlying Portfolio bears a risk of loss in the event the other party defaults
    









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on its obligations and the Portfolio is delayed or prevented from exercising its
right to dispose of the collateral securities, or if the Portfolio realizes a
loss on the sale of the collateral securities. An adviser will enter into
repurchase agreements on behalf of an Underlying Portfolio only with financial
institutions deemed to present minimal risk of bankruptcy during the term of the
agreement based on guidelines established and periodically reviewed by the
Trustees. An Underlying Portfolio enters into repurchase agreements only with
financial institutions that it deems to present minimal risk of bankruptcy
during the term of the agreement, based on guidelines that are periodically
reviewed by the Board of Trustees. These guidelines currently permit each
Underlying Portfolio to enter into repurchase agreements only with approved
banks and primary securities dealers, as recognized by the Federal Reserve Bank
of New York, which have minimum net capital of $100 million, or with a member
bank of the Federal Reserve System. Repurchase agreements are considered to be
loans collateralized by the underlying security. Repurchase agreements entered
into by an Underlying Portfolio will provide that the underlying security at all
times shall have a value at least equal to 102% of the price stated in the
agreement. This underlying security will be marked to market daily. The advisers
and sub-advisers will monitor compliance with this requirement. Under all
repurchase agreements entered into by an Underlying Portfolio, the Custodian or
its agent must take possession of the underlying collateral. However, if the
seller defaults, an Underlying Portfolio could realize a loss on the sale of the
underlying security to the extent the proceeds of the sale are less than the
resale price. In addition, even though the Bankruptcy Code provides protection
for most repurchase agreements, if the seller should be involved in bankruptcy
or insolvency proceedings, an Underlying Portfolio may incur delay and costs in
selling the security and may suffer a loss of principal and interest if the
Underlying Portfolio is treated as an unsecured creditor.
    

RESTRICTED SECURITIES Restricted securities are securities that may not be sold
freely to the public absent registration under the Securities Act of 1933, as
amended (the "1933 Act"), or an exemption from registration. Section 4(2)
commercial paper is issued in reliance on an exemption from registration under
Section 4(2) of the 1933 Act, and is generally sold to institutional investors
(including investment companies) who purchase for investment. Any resale of such
commercial paper must be in an exempt transaction, usually to an institutional
investor through the issuer or investment dealers who make a market on such
commercial paper. Rule 144A securities are securities re-sold in reliance on an
exemption from registration provided by Rule 144A under the 1933 Act.

SECURITIES LENDING Securities lending is an investment technique which enables
an Underlying Portfolio to generate additional income by lending its securities
pursuant to agreements requiring that the loans be continuously secured by cash,
securities of the U.S. Government or its agencies, or any combination of cash
and such securities, as collateral equal to at least the market value at all
times of the loaned securities. Such loans will not be made if, as a result, the
aggregate amount of all outstanding loaned securities for an Underlying
Portfolio exceeds 20% of the value of that Portfolio's total assets taken at
fair market value. Loans are made only to borrowers deemed by the adviser or
sub-adviser to be in good standing and when, in the judgment of the adviser or
sub-adviser, the consideration that can be earned currently from such loaned
securities justifies the attendant risk. Any loan may be terminated by either
party upon reasonable notice to the other party. Each of the Underlying
Portfolios may use the Distributor as a broker in these transactions.

   
SWAPS, CAPS, FLOORS AND COLLARS In a typical interest rate swap, one party
agrees to make regular payments equal to a floating interest rate times a
"notional principal amount," in return for payments equal to a fixed rate times
the same amount, for a specific period of time. If a swap agreement provides for
payment in different currencies, the parties might agree to exchange the
notional principal amount as well. Swaps may also depend on other prices or
rates, such as the value of an index or mortgage prepayment rates.

In a typical cap or floor agreement, the buyer of an interest rate cap obtains
the right to receive payments to the extent that a specific interest rate
exceeds an agreed-upon level, while the seller of an interest rate floor is
obligated to make
    









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payments to the extent that a specified interest rate falls below an agreed-upon
level. An interest rate collar combines elements of buying a cap and selling a
floor. In swap agreements, if the Underlying Portfolio agrees to exchange
payments in dollars for payments in foreign currency, the swap agreement would
tend to decrease the Underlying Portfolio's exposure to U.S. interest rates and
increase its exposure to foreign currency and interest rates. Caps and floors
have an effect similar to buying or writing options. Depending on how they are
used, swap agreements may increase or decrease the overall volatility of the
Underlying Portfolio's investment and their share price and yield.

Swap agreements are sophisticated hedging instruments that typically involve a
small investment of cash relative to the magnitude of risk assumed. As a result,
swaps can be highly volatile and have a considerable impact on the Underlying
Portfolio's performance.

Swap agreements are subject to risks related to the counterparty's ability to
perform, and may decline in value if the counterparty's creditworthiness
deteriorates. An Underlying Portfolio may also suffer losses if it is unable to
terminate outstanding swap agreements or reduce its exposure through offsetting
transactions. Any obligation an Underlying Portfolio may have under these types
of arrangements will be covered by setting aside liquid, high grade debt
securities in a segregated account. An Underlying Portfolio will enter into
swaps only with counterparties believed to be creditworthy.
    

TIME DEPOSITS Time deposits are non-negotiable receipts issued by a bank in
exchange for the deposit of funds. Like a certificate of deposit, it earns a
specified rate of interest over a definite period of time; however, it cannot be
traded in the secondary market. Time deposits with a withdrawal penalty are
considered to be illiquid securities.

   
U.S. GOVERNMENT AGENCY SECURITIES Guarantees of principal by agencies or
instrumentalities of the United States Government may be a guarantee of payment
at the maturity of the obligation so that in the event of a default prior to
maturity there might not be a market and thus no means of realizing on the
obligation prior to maturity. Guarantees as to the timely payment of principal
and interest do not extend to the value or yield of these securities nor to the
value of the Underlying Portfolio's shares.
    

U.S. TREASURY RECEIPTS U.S. Treasury receipts include "Treasury Receipts"
("TRs"), "Treasury Investment Growth Receipts" ("TIGRs") "Liquid Yield Option
Notes" ("LYONs") and "Certificates of Accrual on Treasury Securities" ("CATS").
LYONs, TIGRs and CATS are interests in private proprietary accounts, while TRs
and STRIPS are interests in accounts sponsored by the U.S. Treasury.

VARIABLE OR FLOATING RATE INSTRUMENTS Variable or floating rate instruments are
instruments which may involve a demand feature and may include variable amount
master demand notes available through the Custodian. Variable or floating rate
instruments bear interest at a rate which varies with changes in market rates.
The holder of an instrument with a demand feature may tender the instrument back
to the issuer at par prior to maturity. A variable amount master demand note is
issued pursuant to a written agreement between the issuer and the holder, its
amount may be increased by the holder or decreased by the holder or issuer, it
is payable on demand, and the rate of interest varies based upon an agreed
formula. There is a risk that the current interest rate on such obligations may
not accurately reflect existing market interest rates. A demand instrument with
a demand notice exceeding seven days may be considered illiquid if there is no
secondary market for such security. The quality of the underlying credit must,
in the opinion of an Underlying Portfolio's advisers, be equivalent to the
long-term bond or commercial paper ratings applicable to permitted investments
for each Underlying Portfolio. Each Underlying Portfolio's advisers will monitor
on an ongoing basis the earning power, cash flow, and liquidity ratios of the
issuers of such instruments and will similarly monitor the ability of an issuer
of a demand instrument to pay principal and interest on demand.










                                      S-10

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In case of obligations which include a put feature at the option of the debt
holder, the date of the put may be used as an effective maturity date for the
purpose of determining weighted average portfolio maturity.

   
WHEN-ISSUED SECURITIES When-issued securities are securities for which delivery
and payment normally take place within 45 days after the date of commitment to
purchase. In the case of debt obligations, delivery and payment normally takes
place within 45 days after the date of commitment to purchase. An Underlying
Portfolio will only make commitments to purchase obligations on a when-issued
basis with the intention of actually acquiring the securities, but may sell them
before the settlement date. The when-issued securities are subject to market
fluctuation, and no interest accrues to the purchaser during this period. The
payment obligation and the interest rate that will be received on the securities
are each fixed at the time the purchaser enters into the commitment. Purchasing
obligations on a when-issued basis is a form of leveraging and can involve a
risk that the yields available in the market when the delivery takes place may
actually be higher than those obtained in the transaction itself. In that case
there could be an unrealized loss at the time of delivery. An Underlying
Portfolio will establish a segregated account with its custodian and maintain
liquid, high grade debt securities in an amount at least equal in value to that
Underlying Portfolio's commitments to purchase when-issued securities. If the
value of these assets declines, the Underlying Portfolio involved will place
additional liquid assets in the account on a daily basis so that the value of
the assets in the account is equal to the amount of such commitments.
    

One form of when-issued or delayed-delivery security that a Portfolio may
purchase is a "to be announced" ("TBA") mortgage-backed security. A TBA
mortgage-backed security transaction arises when a mortgage-backed security,
such as a GNMA pass-through security, is purchased or sold with specific pools
that will constitute that GNMA pass-through security to be announced on a future
settlement date.

ZERO COUPON SECURITIES Zero coupon securities are fixed income securities that
have been stripped of their unmatured interest coupons. Zero coupon securities,
including STRIPS and Receipts (TRs, TIGRs and CATS) are sold at a (usually
substantial) discount and redeemed at face value at their maturity date without
interim cash payments of interest or principal. The amount of this discount is
accredited over the life of the security, and the accretion constitutes the
income earned on the security for both accounting and tax purposes. Because of
these features, the market prices of zero coupon securities are generally more
volatile than the market prices of securities that have similar maturity but
that pay interest periodically. Zero coupon securities are likely to respond to
a greater degree to interest rate changes than are non-zero coupon securities
with similar maturity and credit qualities. Shareholders may have to redeem
shares to pay tax on the "phantom income" earned by a Portfolio, and the
Portfolio may have to dispose of its portfolio securities under disadvantageous
circumstances to generate cash, or may have to leverage itself by borrowing cash
to satisfy distribution requirements. A Portfolio accrues income with respect to
the securities prior to the receipt in cash payments. Pay-in-kind securities are
securities that have interest payable by delivery of additional securities.
Deferred payment securities are securities that remain zero coupon securities
until a predetermined date, at which time the stated coupon rate becomes
effective and interest becomes payable at regular intervals. See also "Taxes."


INVESTMENT LIMITATIONS OF THE FUNDS

FUNDAMENTAL POLICIES

Each Fund may not:

1.       Make loans if, as a result, more than 33 1/3% of its total assets would
         be loaned to other parties.










                                      S-11

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2.       Purchase or sell real estate, physical commodities, or commodities
         contracts, except that each Fund may purchase commodities contracts
         relating to financial instruments, such as financial futures or index
         contracts and options on such contracts.

3.       Issue senior securities (as defined in the 1940 Act) except as
         permitted by rule, regulation or order of the Securities and Exchange
         Commission (the "SEC").

4.       Act as an underwriter of securities of other issuers except as it may
         be deemed an underwriter in selling a portfolio security.

5.       Invest in interests in oil, gas, or other mineral exploration or
         development programs and oil, gas or mineral leases.

   
These investment limitations and certain of the investment limitations in each
Prospectus are fundamental policies of the Funds and may not be changed without
the approval of a majority of a Fund's outstanding shares. The term "majority of
outstanding shares" means the vote of: (i) 67% or more of a fund's shares
present at a meeting, if more than 50% of the outstanding shares of a fund are
present or represented by proxy; or (ii) more than 50% of a fund's outstanding
shares, whichever is less.
    

NON-FUNDAMENTAL POLICIES

Each Fund may not:

1.       Pledge, mortgage or hypothecate assets except to secure borrowings
         permitted by the Fund's fundamental limitation on borrowing.

2.       Invest in companies for the purpose of exercising control.

3.       Purchase securities on margin or effect short sales, except that each
         Fund may: (i) obtain short-term credits as necessary for the clearance
         of security transactions; (ii) provide initial and variation margin
         payments in connection with transactions involving futures contracts
         and options on such contracts; and (iii) make short sales "against the
         box" or in compliance with the SEC's position regarding the asset
         segregation requirements imposed by Section 18 of the 1940 Act.

4.       Invest its assets in securities of any investment company, except: (i)
         by purchase in the open market involving only customary brokers'
         commissions; (ii) in connection with mergers, acquisitions of assets,
         or consolidations; or (iii) as permitted by the Trust's SEC Order; or
         (iv) as otherwise permitted by the 1940 Act.

   
5.       Purchase or retain securities (other than obligations issued or
         guaranteed by the U.S. Government or any foreign government, their
         agencies or instrumentalities or shares of the Underlying Portfolios)
         of an issuer if, to the knowledge of the Trust, an officer, trustee,
         partner or director of the Trust or any investment adviser of the Trust
         owns beneficially more than 1/2 of the 1% of the shares or securities
         of such issuer and all such officers, trustees, partners and directors
         owning more than 1/2 of 1% of such shares or securities together own
         more than 5% of such shares or securities.
    

6.       Purchase securities of any company which has (with predecessors) a
         record of less than three years continuing operations if, as a result,
         more than 5% of the total assets (taken at fair market value) would be
         invested in such securities.











                                      S-12

<PAGE>   125



7.       Purchase or hold illiquid securities, i.e., securities that cannot be
         disposed of for their approximate carrying value in seven days or less
         (which term includes repurchase agreements and time deposits maturing
         in more than seven days) if, in the aggregate, more than 15% of its net
         assets would be invested in illiquid securities.

A Fund's purchase of investment company securities results in the bearing of
expenses such that shareholders would indirectly bear a proportionate share of
the operating expenses of such investment companies, including advisory fees.

Each of the foregoing percentage limitations (except with respect to the
limitation on investing in illiquid securities) applies at the time of purchase.
These limitations are non-fundamental and may be changed by the Trust's Board of
Trustees without a vote of shareholders.

ADDITIONAL RESTRICTIONS

The following are non-fundamental investment limitations that are currently
required by one or more states in which the Trust sells shares of the Funds.
These limitations are in addition to, and in some cases more restrictive than,
the fundamental and non-fundamental investment limitations listed above. A
limitation may be changed or eliminated without shareholder approval if the
relevant state changes or eliminates its policy regarding such investment
restriction. As long as a Fund's shares are registered for sale in such states,
it may not:

1.       Invest more than 5% of its net assets in warrants; provided that, of
         this 5%, no more than 2% will be in warrants that are not listed on the
         New York Stock Exchange or the American Stock Exchange.

2.       Invest more than 15% of its net assets in illiquid securities,
         including securities which are not readily marketable.


INVESTMENT LIMITATIONS OF THE UNDERLYING PORTFOLIOS

FUNDAMENTAL POLICIES
   
The following investment limitations are fundamental policies of each Underlying
Portfolio which cannot be changed with respect to an Underlying Portfolio
without the consent of the holders of a majority of that Portfolio's outstanding
shares.
    

The SIMT Core Fixed Income, SIMT High Yield Bond, SIMT Large Cap Growth, SIMT
Large Cap Value, SIMT Small Cap Growth, SIMT Small Cap Value, SIT International
Equity and SIT Emerging Markets Equity Portfolios may not:

1.       Borrow money in an amount exceeding 33 1/3% of the value of its total
         assets, provided that, for purposes of this limitation, investment
         strategies which either obligate a Portfolio to purchase securities or
         require a Portfolio to segregate assets are not considered to be
         borrowings. To the extent that its borrowings exceed 5% of its assets,
         (i) all borrowings will be repaid before making additional investments
         and any interest paid on such borrowings will reduce income; and (ii)
         asset coverage of at least 300% is required.

   
2.       Make loans if, as a result, more than 33 1/3% of its total assets would
         be lent to other parties, except that each Portfolio may (i) purchase
         or hold debt instruments in accordance with its investment objective
         and policies; (ii) enter into repurchase agreements; and (iii) lend its
         securities in accordance with its prospectus and statement of
         additional information.
    

3.       Purchase or sell real estate, physical commodities, or commodities
         contracts, except that each Portfolio may purchase (i) marketable
         securities issued by companies which own or invest in real estate
         (including real estate investment trusts), commodities, or commodities
         contracts; and (ii) commodities contracts relating to financial

                                      S-13
<PAGE>   126

         instruments, such as financial futures contracts and options on such
         contracts.

4.       Issue senior securities (as defined in the 1940 Act) except as
         permitted by rule, regulation or order of the Securities and Exchange
         Commission (the "SEC").

5.       Act as an underwriter of securities of other issuers except as it may
         be deemed an underwriter in selling a portfolio security.

6.       Invest in interests in oil, gas, or other mineral exploration or
         development programs and oil, gas or mineral leases.


The SIT International Fixed Income Portfolio may not:

1.       Pledge, mortgage or hypothecate assets except to secure temporary
         borrowings as described in the Prospectuses in aggregate amounts not to
         exceed 10% of the net assets of such Portfolio taken at current value
         at the time of the incurrence of such loan.

2.       Make loans, except that the Portfolio may (i) purchase or hold debt
         securities in accordance with its investment objectives and policies;
         (ii) engage in securities lending as described in this Prospectus and
         in the Statement of Additional Information; and (iii) enter into
         repurchase agreements, provided that repurchase agreements and time
         deposits maturing in more than seven days, and other illiquid
         securities, including securities which are not readily marketable or
         are restricted, are not to exceed, in the aggregate, 10% of the total
         assets of the International Fixed Income Portfolio.

3.       Invest in companies for the purpose of exercising control.

4.       Acquire more than 10% of the voting securities of any one issuer.

5.       Purchase or sell real estate, real estate limited partnership
         interests, commodities or commodities contracts. However, subject to
         its permitted investments, the Portfolio may purchase obligations
         issued by companies which invest in real estate, commodities or
         commodities contracts.

6.       Make short sales of securities, maintain a short position or purchase
         securities on margin, except as described in the Prospectus and except
         that the Trust may obtain short-term credits as necessary for the
         clearance of security transactions.

7.       Act as an underwriter of securities of other issuers except as it may
         be deemed an underwriter in selling a portfolio security.

8.       Purchase securities of other investment companies except as permitted
         by the 1940 Act and the rules and regulations thereunder and may only
         purchase securities of money market funds.

9.       Issue senior securities (as defined in the 1940 Act) except in
         connection with permitted borrowing as described in the Prospectuses in
         this Statement of Additional Information or as permitted by rule,
         regulation or order of the SEC.

   
10.      Purchase or retain securities of an issuer if, to the knowledge of the
         Trust, an officer, trustee, partner or director of the Trust or any
         investment adviser of the Trust owns beneficially more than 1/2 of 1%
         of the shares or securities of such issuer and all such officers,
         trustees, partners and directors owning more than 1/2 of 1% of 
    

                                      S-14
<PAGE>   127

         such shares or securities together own more than 5% of such shares or
         securities.

11.      Purchase securities of any company which has (with predecessors) a
         record of less than three years continuing operations if, as a result,
         more than 5% of the total assets (taken at current value) would be
         invested in such securities.

12.      Invest in interests in oil, gas or other mineral exploration or
         development programs and oil, gas or mineral leases.

13.      Purchase restricted securities (securities which must be registered
         under the Securities Act of 1933, as amended (the "1933 Act"), before
         they may be offered or sold to the public) or other illiquid securities
         except as described in the Prospectuses and this Statement of
         Additional Information.

The SLAT Prime Obligation Portfolio may not:

1.       Borrow money except for temporary or emergency purposes and then only
         in an amount not exceeding 10% of the value of the total assets of the
         Portfolio. This borrowing provision is included solely to facilitate
         the orderly sale of portfolio securities to accommodate substantial
         redemption requests if they should occur and is not for investment
         purposes. All borrowings by the Portfolio will be repaid before making
         additional investments for the Portfolio and any interest on such
         borrowings will reduce the income of the Portfolio.

2.       Make loans, except that the Portfolio may purchase or hold debt
         instruments in accordance with its investment objective and policies
         and may enter into repurchase agreements, provided that repurchase
         agreements maturing in more than seven days, restricted securities and
         other illiquid securities are not to exceed, in the aggregate, 10% of
         the Portfolio's total assets.

3.       Pledge, mortgage or hypothecate assets except to secure temporary
         borrowings, as described in the Prospectus, in aggregate amounts not to
         exceed 10% of the net assets of such Portfolio taken at fair market
         value at the time such loan is incurred.

4.       Invest in companies for the purpose of exercising control.

5.       Acquire more than 10% of the voting securities of any one issuer.

6.       Purchase or sell real estate, real estate limited partnership
         interests, commodities or commodities contracts including futures
         contracts. However, subject to its permitted investments, the Portfolio
         may purchase obligations issued by companies which invest in real
         estate, real estate limited partnerships, commodities or commodities
         contracts.

7.       Make short sales of securities, maintain a short position or purchase
         securities on margin, except that the Portfolio may obtain short-term
         credits as necessary for the clearance of securities transactions.

8.       Act as an underwriter of securities of other issuers except as it may
         be deemed an underwriter in selling a portfolio security.

9.       Purchase securities of other investment companies except as permitted
         by the 1940 Act and the rules and regulations thereunder and, in any
         event, may not purchase securities of other open-end investment
         companies. Under these rules and regulations, the Portfolio is
         prohibited from acquiring the securities of other investment companies
         if, as a result of such acquisition, the Portfolio owns more than 3% of
         the total voting stock of an investment company; securities issued by
         any one investment company represent more than 5% of the total

                                      S-15
<PAGE>   128


         
         Portfolio assets; or securities (other than treasury stock) issued by
         all investment companies represent more than 10% of the total assets of
         the Portfolio. These investment companies typically incur fees that are
         separate from those fees incurred directly by the Portfolio. The
         Portfolio's purchase of such investment companies results in the
         layering of expenses such that shareholders would indirectly bear a
         proportionate share of such investment companies' expenses, including
         advisory fees.

10.      Issue senior securities (as defined in the Investment Company Act of
         1940) except in connection with permitted borrowings as described in
         the Prospectus and Statement of Additional Information or as permitted
         by rule, regulation or order of the Securities and Exchange Commission.

   
11.      Purchase or retain securities of an issuer if, to the knowledge of the
         Trust, an officer, trustee, partner or director of the Trust or any
         investment adviser of the Trust owns beneficially more than 1/2 of 1%
         of the shares or securities of such issuer and all such officers,
         trustees, partners and directors owning more than 1/2 of 1% of such
         shares or securities together own more than 5% of such shares of
         securities.
    

12.      Purchase securities of any company which has (with predecessors) a
         record of less than three years' continuing operations, except (i)
         obligations issued or guaranteed by the U.S. Government, its agencies
         or instrumentalities, or (ii) municipal securities which are rated by
         at least two nationally recognized municipal bond rating services, if,
         as a result, more than 5% of the total assets (taken at fair market
         value) of the Portfolio would be invested in such securities.

13.      Purchase warrants, puts, calls, straddles, spreads or combinations
         thereof.

14.      Invest in interests in oil, gas or other mineral exploration or
         development programs.

15.      Purchase restricted securities (securities which must be registered
         under the Securities Act of 1933 before they may be offered or sold to
         the public) or other illiquid securities except as described in the
         Prospectus and this Statement of Additional Information.

The foregoing percentages will apply at the time of the purchase of a security
and shall not be considered violated unless an excess or deficiency occurs
immediately after or as a result of a purchase of such security. These
investment limitations and the investment limitations in each Underlying
Portfolio's Prospectus are fundamental policies of the Trust and may not be
changed without shareholder approval.

NON-FUNDAMENTAL POLICIES

The SIMT Core Fixed Income, SIMT High Yield Bond, SIMT Large Cap Growth, SIMT
Large Cap Value, SIMT Small Cap Growth, SIMT Small Cap Value, SIT International
Equity and SIT Emerging Markets Equity Portfolios may not:

1.       Pledge, mortgage or hypothecate assets except to secure borrowings
         permitted by the Portfolio's fundamental limitation on borrowing.

2.       Invest in companies for the purpose of exercising control.

3.       Purchase securities on margin or effect short sales, except that each
         Portfolio may (i) obtain short-term credits as necessary for the
         clearance of security transactions; (ii) provide initial and variation
         margin payments in connection with transactions involving futures
         contracts and options on such contracts; and (iii) make short sales

                                      S-16
<PAGE>   129


         "against the box" or in compliance with the SEC's position regarding
         the asset segregation requirements imposed by Section 18 of the 1940
         Act.

4.       Invest its assets in securities of any investment company, except (i)
         by purchase in the open market involving only customary brokers'
         commissions; (ii) in connection with mergers, acquisitions of assets,
         or consolidations; or (iii) as otherwise permitted by the 1940 Act.

   
5.       Purchase or retain securities of an issuer if, to the knowledge of the
         Trust, an officer, trustee, partner or director of the Trust or any
         investment adviser of the Trust owns beneficially more than 1/2 of the
         1% of the shares or securities of such issuer and all such officers,
         trustees, partners and directors owning more than 1/2 of 1% of such
         shares or securities together own more than 5% of such shares or
         securities.
    

6.       Purchase securities of any company which has (with predecessors) a
         record of less than three years continuing operations if, as a result,
         more than 5% of the total assets (taken at fair market value) would be
         invested in such securities.

7.       Purchase or hold illiquid securities, i.e., securities that cannot be
         disposed of for their approximate carrying value in seven days or less
         (which term includes repurchase agreements and time deposits maturing
         in more than seven days) if, in the aggregate, more than 15% of its net
         assets would be invested in illiquid securities. Notwithstanding the
         foregoing, securities issued pursuant to Section 4(2) of the 1933 Act
         and securities eligible to be re-sold under Rule 144A of the 1933 Act
         may be treated as liquid securities under procedures adopted by the
         Board of Trustees.

   
8.       Purchase securities which must be registered under the 1933 Act, as
         amended, before they may be sold to the public, if, in the aggregate,
         more than 15% of its net assets would be invested in such restricted
         securities. Securities issued pursuant to Section 4(2) of the 1933 Act
         and securities exempted from registration upon re-sale by Rule 144A
         under the 1933 Act are not deemed to be restricted securities for
         purposes of this limitation.
    

The SLAT Prime Obligation Portfolio must:

1.       Maintain an average dollar-weighted portfolio maturity of 90 days or
         less.

Under rules and regulations, established by the SEC, an Underlying Portfolio is
prohibited from acquiring the securities of other investment companies if, as a
result of such acquisition, the Underlying Portfolio owns more than 3% of the
total voting stock of the company; securities issued by any one investment
company represent more than 5% of the Underlying Portfolio's total assets; or
securities (other than treasury stock) issued by all investment companies
represent more than 10% of the total assets of the Underlying Portfolio. An
Underlying Portfolio's purchase of such investment company securities results in
the bearing of expenses such that shareholders would indirectly bear a
proportionate share of the operating expenses of such investment companies,
including advisory fees.

Each of the foregoing percentage limitations (except with respect to the
limitation on investing in illiquid securities) apply at the time of purchase.
These limitations are non-fundamental and may be changed by the Underlying
Trust's Board of Trustees without a vote of shareholders.

ADDITIONAL RESTRICTIONS

The following are non-fundamental investment limitations that are currently
required by one or more states in which the Trust sells shares of the Underlying
Portfolios. These limitations are in addition to, and in some cases more
restrictive than, the fundamental and non-fundamental investment limitations
listed above. A limitation may be changed or eliminated without shareholder
approval if the relevant state changes or eliminates its policy regarding such
investment restriction.

                                      S-17
<PAGE>   130

As long as an Underlying Portfolio's shares are registered for sale in such
states, it may not:

1.       Invest more than 5% of its net assets in warrants; provided that of
         this 5% no more than 2% will be in warrants that are not listed on the
         New York Stock Exchange or the American Stock Exchange.

2.       Invest in the securities of other investment companies except by
         purchase in the open market where no commission or profit to a sponsor
         or dealer results from the purchase other than the customary broker's
         commission, or except when the purchase is part of a plan of merger,
         consolidation, reorganization or acquisition. [This restriction does
         not apply to the SIMT High Yield Bond Portfolio.]

   
3.       Invest more than 15% (10% with respect to the SIT International Equity,
         SIT Emerging Markets Equity, and SIT International Fixed Income
         Portfolios) of its net assets in illiquid securities, including
         securities which are not readily marketable or are restricted. This
         limitation does not apply to the SLAT Prime Obligation Portfolio.

4.       Invest more than 15% of its net assets in restricted securities. For
         purposes of this limitation, securities exempted from registration
         under the 1933 Act, including Rule 144A securities and Section 4(2)
         commercial paper, are considered to be liquid. This limitation does not
         apply to the SLAT Prime Obligation Portfolio.
    

5.       [SIT Portfolios only] Make short sales, except short sales "against the
         box."
   

THE MANAGER TO THE FUNDS

The Administration Agreement provides that SEI Fund Management (the "Manager")
shall not be liable for any error of judgment or mistake of law or for any loss
suffered by the Trust in connection with the matters to which the Administration
Agreement relates, except a loss resulting from willful misfeasance, bad faith
or gross negligence on the part of SEI Management in the performance of its
duties or from reckless disregard of its duties and obligations thereunder.

The Administration Agreement shall remain effective for the initial term of the
Agreement and each renewal term thereof unless earlier terminated (a) by the
mutual written agreement of the parties; (b) by either party of the
Administration Agreement on 90 days' written notice, as of the end of the
initial term or the end of any renewal term; (c) by either party of the
Administration Agreement on such date as is specified in written notice given by
the terminating party, in the event of a material breach of the Administration
Agreement by the other party, provided the terminating party has notified the
other party of such breach at least 45 days prior to the specified date of
termination and the breaching party has not remedied such breach by the
specified date; (d) effective upon the liquidation of the Manager; or (e) as to
any Fund or the Trust, effective upon the liquidation of such Fund or the Trust,
as the case may be.
  
The Manager, a Delaware business trust, has its principal business offices at
680 East Swedesford Road, Wayne, Pennsylvania 19087-1658. SEI Financial
Management Corporation ("SFM"), a wholly-owned subsidiary of SEI Corporation
("SEI"), is the owner of all beneficial interest in the Manager. Alfred P. West,
Jr., Carmen V. Romeo, and Henry H. Greer constitute the Board of Directors of
SFM, the Investment Adviser to the Funds. Mr. West serves as the Chairman of the
Board of Directors and Chief Executive Officer of SFM and SEI, and Mr. Greer
serves as President and Chief Operating Officer of SFM and SEI. SEI and its
subsidiaries and affiliates, including the Manager, are leading providers of
funds evaluation services, trust accounting systems, and brokerage and
information services to financial institutions, institutional investors, and
money managers. The Manager and its affiliates also serve as administrator or
manager to the following other mutual funds: The Achievement Funds Trust, The
Advisors' Inner Circle Fund, The Arbor Fund, ARK Funds, Bishop Street Funds,
CoreFunds, Inc., CrestFunds, Inc., CUFUND, FMB Funds, Inc., First American
Funds, Inc., First American Investment Funds, Inc., Inventor Funds, Inc.,
Marquis Funds(R), Monitor Funds, Morgan Grenfell Investment Trust, The PBHG
Funds, Inc., The Pillar Funds, Rembrandt Funds(R), 1784 Funds(R), SEI Daily
Income Trust, SEI Index Funds, SEI Institutional Investments Trust, SEI
Institutional Managed Trust, SEI International Trust, SEI Liquid Asset Trust,
SEI Tax Exempt Trust, Stepstone Funds, STI Classic Funds, STI Classic Variable
Trust, and Turner Funds.
    

                                      S-18
<PAGE>   131

   
If operating expenses of any Fund exceed limitations established by certain
states, the Manager will pay such excess. The Manager will not be required to
bear expenses of any Fund to an extent which would result in the Fund's
inability to qualify as a regulated investment company under provisions of the
Internal Revenue Code. The term "expenses" is defined in such laws or
regulations, and generally excludes brokerage commissions, distribution
expenses, taxes, interest and extraordinary expenses.
    

THE INVESTMENT ADVISER TO THE FUNDS

   
SFM will discharge its responsibilities subject to the supervision of, and
policies set by, the Trustees of the Trust. The Trust's Advisory Agreement with
SFM provides that SFM shall not be protected against any liability to the Trust
or its shareholders by reason of willful misfeasance, bad faith or gross
negligence on its part in the performance of its duties or from reckless
disregard of its obligations or duties thereunder.
    

The Trust will operate in a manner that is distinctly different from virtually
all other investment companies. Most investment companies operate under a
structure in which a single related group of companies provide investment
advisory, administrative, and distribution services, and in which the investment
companies purchase equity and debt securities. The Trust, however, invests in
shares of certain related investment companies that are advised and/or
administered by SFM (i.e., the Underlying Portfolios). In turn, these Underlying
Portfolios invest in equity and debt securities. SFM is responsible for
investing the assets of each Fund in certain of the Underlying Portfolios within
percentage ranges established by SFM, and for investing uninvested cash balances
in short-term investments, including repurchase agreements.

   
The continuance of the Advisory Agreement must be specifically approved at least
annually: (i) by the vote of a majority of the outstanding shares of that Fund
or by the Trustees; and (ii) by the vote of a majority of the Trustees who are
not parties to such Agreement or "interested persons" of any party thereto, cast
in person at a meeting called for the purpose of voting on such approval. The
Advisory Agreement will terminate automatically in the event of its assignment,
and is terminable at any time without penalty by the Trustees of the Trust or,
with respect to a Fund, by a majority of the outstanding shares of that Fund, on
not less than 30 days' nor more than 60 days' written notice to the SFM, or by
SFM on 90 days' written notice to the Trust.
    

SFM will reimburse each Fund for certain expenses which in any year exceed the
limits prescribed by any state in which the Fund's shares are qualified for
sale. Presently, the most restrictive expense ratio limitation imposed by any
state is 2.5% of the first $30 million of a Fund's average daily net assets, 2%
of the next $70 million of such assets, and 1.5% of net assets in excess of $100
million. For the purpose of determining whether a Fund is entitled to
reimbursement, the expenses of the Fund are calculated on a monthly basis. If a
Fund is entitled to reimbursement, that month's management fee will be reduced
or postponed with any adjustment made after the end of the year.

THE ADVISERS AND SUB-ADVISERS TO THE UNDERLYING PORTFOLIOS

Each Advisory and certain of the Sub-Advisory Agreements provide that each
Adviser (or Sub-Adviser) shall not be protected against any liability to the
Underlying Trusts or their shareholders by reason of willful misfeasance, bad
faith or gross negligence on its part in the performance of its duties or from
reckless disregard of its obligations or duties thereunder. In addition, certain
of the Sub-Advisory Agreements provide that the Sub-Advisers shall not be
protected against any liability to the Underlying Trusts or their Shareholders
by reason of willful misfeasance, bad faith or negligence on its part in the
performance of its duties or from reckless disregard of its obligations or
duties thereunder.

Pursuant to the Advisory and Sub-Advisory Agreements, the Underlying SIMT and
SIT Portfolios rely upon SFM for access, on a pooled investment basis, the core
elements of SFM's investment adviser selection, monitoring, and asset allocation
services. Under the "Manager of Managers" approach employed by the Underlying
SIMT and SIT Portfolios,

                                      S-19
<PAGE>   132

SFM will recommend and, if the Trustees of the Underlying Trusts approve the
recommendation, monitor for the Underlying Portfolios one or more managers using
a range of investment styles.

   
The continuance of each Advisory and Sub-Advisory Agreement must be specifically
approved at least annually: (i) by the vote of a majority of the outstanding
shares of that Underlying Portfolio or by the Trustees; and (ii) by the vote of
a majority of the Trustees who are not parties to such Agreement or "interested
persons" of any party thereto, cast in person at a meeting called for the
purpose of voting on such approval. Each Advisory or Sub-Advisory Agreement will
terminate automatically in the event of its assignment, and is terminable at any
time without penalty by the Trustees of the Trust or, with respect to an
Underlying Portfolio, by a majority of the outstanding shares of that Underlying
Portfolio, on not less than 30 days' nor more than 60 days' written notice to
the Adviser (or Sub-Adviser), or by the Adviser (or Sub- Adviser) on 90 days'
written notice to the Trust. However, SFM has obtained an exemptive order from
the Securities and Exchange Commission (the "SEC") that permits SFM, with the
approval of the Trust's Board of Trustees, to retain sub-advisers for an
Underlying Portfolio without submitting the sub-advisory agreement to a vote of
the Underlying Portfolio's shareholders. In addition, the exemptive relief
permits the non-disclosure of amounts payable by SFM under such sub-advisory
agreements.
    

PORTFOLIO MANAGERS OF THE UNDERLYING PORTFOLIOS

The following persons serve as portfolio managers to the Underlying Portfolios.

SIMT LARGE CAP GROWTH PORTFOLIO

Alliance Capital Management L.P. ("Alliance") is a sub-adviser to the SIMT Large
Cap Growth Portfolio. A committee of investment professionals at Alliance has
been responsible for managing the assets of the Portfolio allocated to Alliance
since the Portfolio's inception.

A committee composed of the eight investment portfolio managers of the equity
investment team of IDS Advisory Group Inc. ("IDS") is responsible for the
day-to-day management of a portion of the SIMT Large Cap Growth Portfolio's
investments. No individual person is primarily responsible for making
recommendations to that committee.

Provident Investment Counsel, Inc. ("PIC") is a sub-adviser to the SIMT Large
Cap Growth Portfolio. PIC utilizes a team approach to portfolio management. The
Managing Director, Jeffrey J. Miller, is responsible for the day-to-day
management of the Portfolio.

SIMT LARGE CAP VALUE PORTFOLIO

Investment decisions have been made by the quantitative computer model since
March, 1995. Josef Lakonishok, Andrei Shiefer and Robert Vishny, officers of LSV
Asset Management ("LSV"), monitor the quantitative analysis model on a
continuous basis, and make adjustments to the model based on their ongoing
research and statistical analysis. Securities are identified for purchase or
sale for the SIMT Large Cap Value Portfolio based upon the computer model and
defined variance tolerances. Purchases and sales are effected by LSV based upon
the output from the model.

William P. Rydell and Robert A. Wilk of Mellon Equity Associates ("Mellon") have
been the portfolio managers for Mellon's portion of the assets of the SIMT Large
Cap Value Portfolio since 1994. Mr. Rydell is the President and Chief Executive
Officer of Mellon, and has been managing individual and collectivized portfolios
at Mellon since 1982. Mr. Wilk is a Senior Vice President and portfolio manager
of Mellon, and has been involved with securities analysis, quantitative
research, asset allocation, trading and client services at Mellon since April,
1990. Prior to joining Mellon, Mr. Wilk was in charge of portfolio management
and conducted quantitative research for another investment subsidiary of Mellon
Bank Corporation, Triangle Portfolio Associates.

                                      S-20
<PAGE>   133

   
Pacific Alliance Capital Management ("Pacific"), a division of Union Bank of
California, N.A., is a sub-adviser to SIMT's Large Cap Value Portfolio. A
committee of investment professionals at Pacific has been responsible for
managing the assets of the Portfolio allocated to Pacific since December, 1994.
    

SIMT SMALL CAP GROWTH PORTFOLIO

The portion of the SIMT Small Cap Growth Portfolio's assets allocated to
Apodaca-Johnston Capital Management, Inc. ("Apodaca") have been managed since
August, 1995 by Scott Johnston and Jerry C. Apodaca, Jr. Mr. Johnston, a
principal and 1/3 owner of Apodaca, founded Apodaca's predecessor in 1985, and
has 23 years of investment experience. Jerry C. Apodaca, Jr. joined the firm as
a principal and 1/3 owner in 1991, and has 12 years investment management
experience. Before joining Apodaca, Mr. Apodaca was a Vice President of
Marketing at Newport First Investments, Inc.

   
Mr. Roger Stamper, CFA, has primary responsibility for First of America
Investment Corporation's ("First of America") portion of the SIMT Small Cap
Growth Portfolio. Mr. Stamper is a Managing Director of First of America, and
has been with First of America since 1988.

Nicholas-Applegate Capital Management, Inc. ("Nicholas-Applegate") manages its
portion of the SIMT Small Cap Growth Portfolio through its systematic-driven
management team under the supervision of Mr. Nicholas, founder and Chief
Investment Officer of the firm. Nicholas-Applegate's systems driven investment
team, headed by Lawrence S. Speidell, has been primarily responsible for the
day-to-day management of the Portfolio since March, 1994. Mr. Speidell has been
a portfolio manager and investment team leader with Nicholas-Applegate since
March, 1994. Prior to joining Nicholas-Applegate, he was an institutional
portfolio manager with Batterymarch Financial Management.
    

William Jeffrey III, Kenneth F. McCain, and Richard S. Coons, each of whom own
1/3 of Wall Street Associates ("WSA"), serve as portfolio managers for the
portion of the SIMT Small Cap Growth Portfolio's assets allocated to WSA since
August, 1995. Each is a principal of WSA and, together, they have 73 years of
investment management experience.

SIMT SMALL CAP VALUE PORTFOLIO

   
Edwin B. Powell and Joseph T. Doyle, have served as the portfolio managers to
the SIMT Small Cap Value Portfolio since its inception, and since 1995, Cynthia
R. Axlrod has also served as a portfolio manager to the Portfolio. These
individuals work as a team and share responsibility. Mr. Doyle has been with
1838 Investment Advisors, L.P. ("1838") since 1988. Mr. Powell joined 1838 in
1994. Mr. Powell managed small cap equity portfolios for Provident Capital
Management from 1987 to 1994. Prior to joining 1838, Ms. Axlrod was with Friess
Associates from 1992 to 1995. Prior to 1992, Ms. Axlrod was with Provident
Capital Management from 1987 to 1992.
    

The portion of the SIMT Small Cap Value Portfolio's assets allocated to Boston
Partners Asset Management, L.P. ("Boston") have been managed since November,
1995 by Wayne J. Archambo, C.F.A. Mr. Archambo has been employed by Boston since
its organization, and has 10 years experience investing in small capitalization
stocks. Prior to joining Boston, Mr. Archambo was a Senior Vice President and
member of the Equity Policy Committee at The Boston Company Asset Management,
Inc. ("TBCAM"), where he created that firm's Small Capitalization Value Product
and Mid Capitalization Product. Prior to joining TBCAM in 1989, Mr. Archambo
spent six years as a portfolio manager/analyst for Boston-based Systematic
Investors.

SIT INTERNATIONAL EQUITY PORTFOLIO

Acadian Asset Management, Inc. ("Acadian") is a sub-adviser to the SIT
International Equity Portfolio. A committee of investment professionals at
Acadian has been responsible for managing the Portfolio assets allocated to
Acadian since the Portfolio's inception.

                                      S-21
<PAGE>   134

   
James L. Farrell, the Chairman of Farrell Wako Global Investment Management,
Inc. ("Farrell Wako"), manages its portion of the assets of the SIT
International Equity Portfolio. Mr. Farrell has 30 years of experience in
investment management and applied financial research and was responsible for
management of over $1 billion in equity assets as Chairman of MPI Associates
prior to his association with Farrell Wako.
    

Julian R. Johnston and Jeremy G. Lodwick have shared primary responsibility for
a portion of the assets of the SIT International Equity Portfolio and its
predecessor fund since its inception. Mr. Johnston has 20 years experience in
European equity investment. Mr. Johnston joined Morgan Grenfell Investment
Services Limited ("MG") in 1984 and is currently the head of the MG Continental
European Investment team. He speaks French, German, Swedish and Danish fluently.
Mr. Lodwick has ten years experience in European equity investment. He joined MG
in 1986 and was a UK equity research analyst before moving to New York where he
was a member of the client liaison and marketing team for 5 years. He returned
to the London office in 1991 to manage European equity portfolios.

   
Mr. William Garnett will be primarily responsible for the day-to-day management
and investment decisions with respect to the SIT International Equity
Portfolio's assets allocated to Seligman Henderson Co. Mr. Garnett has more than
10 years' experience in managing Japanese small cap equity securities. Mr. Iain
Clark, Seligman Henderson Co.'s chief investment officer, will have ultimate
responsibility for portfolio management. Mr. Clark has more than 24 years
experience, including 11 with Henderson Administration Group plc.

Mr. Marco Wong leads the management team for the assets of the SIT International
Equity Portfolio allocated to Yamaichi Capital Management, Inc. and Yamaichi
Capital Management (Singapore) Limited ("YCMS"). Mr. Wong has been with YCMS
since 1986.
    

SIT EMERGING MARKETS EQUITY PORTFOLIO

   
Josephine S. Jimenez and Bryan L. Sudweeks share primary responsibility for the
SIT Emerging Markets Equity Portfolio. Ms. Jimenez and Mr. Sudweeks have
thirteen and six years experience, respectively, in emerging markets investment.
Both joined Montgomery Asset Management, L.P. in 1991.
    

SIMT CORE FIXED INCOME PORTFOLIO

BlackRock Financial Management, Inc. ("BlackRock") employs a team approach in
managing the SIMT Core Fixed Income Portfolio, however, the portfolio manager
who has day-to-day responsibility for the Portfolio is Keith Anderson. Mr.
Anderson is a Managing Director and Co-Head of Portfolio Management at
BlackRock, and has 12 years experience investing in fixed income securities.
Prior to founding BlackRock in 1988, Mr. Anderson was a Vice President in Fixed
Income Research at The First Boston Corporation.

Mr. Charles Groeschell, a Senior Vice President of Firstar Investment Research &
Management Company ("FIRMCO") and portfolio manager of a portion of the assets
of the SIMT Core Fixed Income Portfolio, has been employed by FIRMCO or its
affiliates since 1983, and has had 13 years experience in fixed income
investing.

Kent S. Engel, Director and Chief Investment Officer of Western Asset Management
Company ("Western"), has been primarily responsible for the day-to-day
management of a portion of the assets of the SIMT Core Fixed Income Portfolio
since January 19, 1994. Mr. Engel has been with Western and its predecessor
since 1969.

SIMT HIGH YIELD BOND PORTFOLIO

The SIMT High Yield Bond Portfolio's assets have been managed by Richard J.
Lindquist, C.F.A., since its inception. Mr. Lindquist joined BEA Associates
("BEA") in 1995 as a result of BEA's acquisition of CS First Boston Investment
Management, and has had 11 years of investment management experience, including
6 years of experience working with

                                      S-22
<PAGE>   135

high yield bonds. Prior to joining CS First Boston, Mr. Lindquist was with
Prudential Insurance Company of America where he managed high yield portfolios
totalling approximately $1.3 billion.

SIT INTERNATIONAL FIXED INCOME PORTFOLIO

Kenneth Windheim, President of Strategic Fixed Income, L.P. ("SFI"), has been
the portfolio manager of the SIT International Fixed Income Portfolio since its
inception in 1991. Mr. Windheim is assisted by Gregory Barnett and David
Jallits, Directors of SFI and portfolio managers of the Portfolio since April
1994. Prior to forming SFI, Kenneth Windheim managed a global fund income
portfolio at Prudential Asset Management. Prior to joining SFI, Gregory Barnett
was portfolio manager for the Pilgrim Multi-Market Income Fund with active use
of foreign exchange option strategies. Prior to that he was vice president and
senior fixed income portfolio manager at Lexington Management. Prior to joining
SFI, David Jallits was Senior Portfolio Manager for a hedge fund at Teton
Partners. From 1982-1994, he was Vice President and Global Fixed Income
portfolio manager at The Putnam Companies.

DISTRIBUTION

The Trust has adopted a Distribution Plan for Class D (the "Class D Plan") in
accordance with the provisions of Rule 12b-1 under the 1940 Act (which regulates
circumstances under which an investment company may directly or indirectly bear
expenses relating to the distribution of its shares). In this regard, the Board
of Trustees has determined that the Class D Plan and the Distribution Agreement
are in the best interests of the shareholders. Continuance of the Class D Plan
must be approved annually by a majority of the Trustees of the Trust and by a
majority of the Trustees who are not "interested persons" of the Trust (as that
term is defined in the 1940 Act) and who have no direct or indirect financial
interest in the operation of a Distribution Plan or in any agreements related
thereto ("Qualified Trustees"). The Class D Plan requires that quarterly written
reports of amounts spent under the Plan and the purposes of such expenditures be
furnished to and reviewed by the Trustees. The Class D Plan may not be amended
to increase materially the amount which may be spent thereunder without approval
by a majority of the outstanding shares of the Fund or class affected. All
material amendments of the Class D Plan will require approval by a majority of
the Trustees of the Trust and of the Qualified Trustees.

   
Except to the extent that SEI Management (as Manager) and SFM (as investment
adviser) benefitted through increased fees from an increase in the net assets of
the Trust which may have resulted in part from the expenditures, no interested
person of the Trust nor any Trustee of the Trust who is not an interested person
of the Trust had a direct or indirect financial interest in the operation of the
Class D Plan or related agreements.
    

Although banking laws and regulations prohibit banks from distributing shares of
open-end investment companies such as the Trust, according to an opinion issued
to the staff of the SEC by the Office of the Comptroller of the Currency,
financial institutions are not prohibited from acting in other capacities for
investment companies, such as providing shareholder services. Should future
legislative, judicial or administrative action prohibit or restrict the
activities of financial institutions in connection with providing shareholder
services, the Trust may be required to alter materially or discontinue its
arrangements with such financial institutions.

TRUSTEES AND OFFICERS OF THE TRUST

   
The Trustees and executive officers of the Trust, their respective dates of
birth and their principal occupations for the last five years are set forth
below. Each may have held other positions with the named companies during that
period. Unless otherwise noted, the business address of each Trustee and
executive officer is SEI Financial Management Corporation, 680 East Swedesford
Road, Wayne, Pennsylvania 19087-1658. Certain officers of the Trust also serve
as trustees and/or officers of The Achievement Funds Trust, The Advisors' Inner
Circle Fund, The Arbor Fund, ARK Funds, Bishop Street Funds, CoreFunds, Inc.,
CrestFunds, Inc., CUFUND, First American Funds, Inc., First American Investment
Funds, Inc., FMB Funds, Inc., Insurance Investment Products Trust, Inventor
Funds, Inc., Marquis Funds(R), Monitor
    

                                      S-23
<PAGE>   136
   

Funds, Morgan Grenfell Investment Trust, The PBHG Funds, Inc., The Pillar Funds,
Rembrandt Funds(R), 1784 Funds, SEI Daily Income Trust, SEI Institutional
Managed Trust, SEI International Trust, SEI Tax Exempt Trust, Stepstone Funds,
STI Classic Funds, STI Classic Variable Trust and Turner Funds, open-end
management investment companies which are managed by SEI Financial Management
Corporation and with the exception of Rembrandt Funds, are distributed by SEI
Financial Services Company.

ROBERT A. NESHER (DOB 08/17/46) - Chairman of the Board of Trustees* - Retired
since 1994. Executive Vice President of SEI, 1986-1994. Director and Executive
Vice President of the Manager and the Distributor, 1981-1994. Trustee of the
Arbor Fund, Marquis Funds(R), Advisors' Inner Circle Fund, and Inventor Funds,
Inc.

WILLIAM M. DORAN (DOB 05/26/40) - Trustee* - 2000 One Logan Square,
Philadelphia, PA 19103. Partner, Morgan, Lewis & Bockius LLP (law firm), counsel
to the Trust, Manager and Distributor, Director and Secretary of SEI and
Secretary of the Manager and Distributor.

F. WENDELL GOOCH (DOB 12/03/37) - Trustee** - P.O. Box 190, Paoli, IN 47454.
President, Orange County Publishing Co., Inc. since October 1981. Publisher of
the Paoli News and the Paoli Republican and Editor of the Paoli Republican since
January 1981. President, H & W Distribution, Inc. since July 1984. Executive
Vice President, Trust Department, Harris Trust and Savings Bank and Chairman of
the Board of Directors of The Harris Trust Company of Arizona before January
1981. Trustee of STI Classic Funds.

FRANK E. MORRIS (DOB 12/30/23) - Trustee** - 105 Walpole Street, Dover, MA
02030. Retired since 1990. Peter Drucker Professor of Management, Boston
College, 1989-1990. President, Federal Reserve Bank of Boston, 1968-1988.
Trustee of The Arbor Fund, Marquis Funds(R), Advisors' Inner Circle Fund, and
Inventor Funds, Inc.

JAMES M. STOREY (DOB 04/12//31) - Trustee - Partner, Dechert Price & Rhoads,
from September 1987 - December 1993; Honorary Trustee, SEI Daily Income Trust,
SEI Tax Exempt Trust, SEI Index Funds and SEI Institutional Managed Trust since
December 1993.

DAVID G. LEE (DOB 04/16/52) - President and Chief Executive Officer - Senior
Vice President of the Manager and Distributor since 1993. Vice President of the
Manager and Distributor, 1991-1993. President, GW Sierra Trust Funds before
1991.

SANDRA K. ORLOW (DOB 10/18/53) - Vice President and Assistant Secretary - Vice
President and Assistant Secretary of the Manager and Distributor since 1988.

KEVIN P. ROBINS (DOB 04/15/61) - Vice President and Assistant Secretary - Senior
Vice President and General Counsel of SEI, the Administrator and Distributor
since 1994. Vice President and Assistant Secretary of SEI, the Administrator and
Distributor, 1992-1994. Associate, Morgan, Lewis & Bockius LLP (law firm),
1988-1992.

RICHARD W. GRANT (DOB 10/25/45) - Secretary - 2000 One Logan Square,
Philadelphia, PA 19103, Partner, Morgan, Lewis & Bockius LLP (law firm), counsel
to the Trust, Manager and Distributor.

KATHRYN L. STANTON (DOB 11/19/58) - Vice President and Assistant Secretary -
Vice President, Assistant Secretary of SEI, the Administrator and Distributor
since 1994. Associate, Morgan, Lewis & Bockius LLP (law firm), 1989-1994.

JOSEPH P. LYDON (DOB 09/27/59) - Vice President and Assistant Secretary -
Director, Business Administration of Fund Resources, April 1995. Vice President,
Fund Group, Dremen Value Management, LP, President Dremen Financial Services,
Inc. prior to 1995.

STEPHEN G. MEYER (DOB 07/12/65) - Controller, Chief Financial Officer-Vice
President and Controller of SEI 
    

                                      S-24
<PAGE>   137
   

Corporation since 1994. Director, Internal Audit and Risk Management, SEI
Corporation, 1992-1994. Senior Associate, Coopers and Lybrand, 1990-1992.
Internal Audit, Vanguard Group prior to 1992.

TODD CIPPERMAN (DOB 01/14/66) - Vice President and Assistant Secretary - Vice
President and Assistant Secretary of SEI, the Administrator and the Distributor
since 1995. Associate, Dewey Ballantine (law firm) (1994-1995). Associate,
Winston & Strawn (law firm) (1991-1994).

BARBARA A. NUGENT (DOB 06/18/56) - Vice President and Assistant Secretary - Vice
President and Assistant Secretary of SEI, the Administrator and Distributor
since 1996. Associate, Drinker, Biddle & Reath (law firm). Assistant Vice
President/Administration, Delaware Service Company, Inc.

MARC H. CAHN (DOB 06/19/57) - Vice President and Assistant Secretary - Vice
President and Assistant Secretary of SEI, the Administrator and Distributor
since 1996. Associate General Counsel, Barclays Bank PLC. ERISA counsel, First
Fidelity Bancorporation.

*Messrs. Nesher and Doran are Trustees who may be deemed to be "interested
persons" of the Trust as the term is defined in the 1940 Act. 

**Messrs. Gooch, Storey and Morris serve as members of the Audit Committee of 
the Trust.
    

The Trustees and officers of the Trust own less than 1% of the outstanding
shares of the Trust. The Trust pays the fees for unaffiliated Trustees.
Compensation of officers and affiliated Trustees of the Trust is paid by the
Manager.


PERFORMANCE

From time to time, each Fund may advertise yield and/or total return. These
figures will be based on historical earnings and are not intended to indicate
future performance.

The yield of a Fund refers to the annualized income generated by an investment
in the Fund over a specified 30-day period. The yield is calculated by assuming
that the income generated by the investment during that period generated each
period over one year and is shown as a percentage of the investment. In
particular, yield will be calculated according to the following formula: Yield =
2[((a-b)/(cd)) + 1)(6) - 1] where a = dividends and interest earned during the
period; b = expenses accrued for the period (net of reimbursement); c = the
current daily number of shares outstanding during the period that were entitled
to receive dividends; and d = the maximum offering price per share on the last
day of the period.

The total return of a Fund refers to the average compounded rate of return to a
hypothetical investment for designated time periods (including but not limited
to, the period from which the Fund commenced operations through the specified
date), assuming that the entire investment is redeemed at the end of each
period. In particular, total return will be calculated according to the
following formula: P(1+T)(n) = ERV, where P = a hypothetical initial payment of
$1,000; T = average annual total return: n = number of years; and ERV = ending
redeemable value of a hypothetical $1,000 payment made at the beginning of the
designated time period as of the end of such period.


PURCHASE AND REDEMPTION OF SHARES

The purchase and redemption price of shares is the net asset value of each
share. The net asset value of each Fund is determined by SFM and is based upon
the proportional net asset values of each Fund's Underlying Portfolio shares
(plus any available cash). Each Underlying Portfolio's securities are valued by
SFM pursuant to valuations provided by an independent pricing service (generally
the last quoted sale price). Underlying Portfolio securities listed on a
securities 

                                      S-25
<PAGE>   138

exchange for which market quotations are available are valued at the last quoted
sale price on each Business Day (defined as days on which the New York Stock
Exchange is open for business ("Business Day")) or, if there is no such reported
sale, at the most recently quoted bid price. Unlisted securities for which
market quotations are readily available are valued at the most recently quoted
bid price. The pricing service may also use a matrix system to determine
valuations. This system considers such factors as security prices, yields,
maturities, call features, ratings and developments relating to specific
securities in arriving at valuations. The procedures of the pricing service and
its valuations are reviewed by the officers of the Trust under the general
supervision of the Trustees.

It is currently the Trust's policy to pay all redemptions in cash. The Trust
retains the right, however, to alter this policy to provide for redemptions in
whole or in part by a distribution in kind of readily marketable securities held
by an Underlying Portfolio in lieu of cash. Shareholders may incur brokerage
charges on the sale of any such securities so received in payment of
redemptions. However, a shareholder will at all times be entitled to aggregate
cash redemptions from all Underlying Portfolios of the Trust during any 90-day
period of up to the lesser of $250,000 or 1% of the Trust's net assets. A gain
or loss for federal income tax purposes may be realized by a taxable shareholder
upon an in-kind redemption depending upon the shareholder's basis in the shares
of the Trust redeemed.

Purchases and redemptions of shares of the Funds may be made on any day the New
York Stock Exchange is open for business. Currently, the following holidays are
observed by the Trust: New Year's Day, Presidents' Day, Good Friday, Memorial
Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.

The Trust reserves the right to suspend the right of redemption and/or to
postpone the date of payment upon redemption for any period during which trading
on the New York Stock Exchange is restricted, or during the existence of an
emergency (as determined by the SEC by rule or regulation) as a result of which
disposal or evaluation of the portfolio securities is not reasonably
practicable, or for such other periods as the SEC may by order permit. The Trust
also reserves the right to suspend sales of shares of the Funds for any period
during which the New York Stock Exchange, the Manager, the Distributor, and/or
the Custodian are not open for business.


SHAREHOLDER SERVICES

DISTRIBUTION INVESTMENT OPTION: Distributions of dividends and capital gains
made by the Funds may be automatically invested in shares of one of the Funds if
shares of the Fund are available for sale. Such investments will be subject to
initial investment minimums, as well as additional purchase minimums. A
shareholder considering the Distribution Investment Option should obtain and
read the prospectus of the Underlying Portfolios and consider the differences in
objectives and policies before making any investment.

   
    
EXCHANGE PRIVILEGE: Some or all of the shares of a Fund's Shares for which
payment has been received (i.e., an established account), may be exchanged for
Shares of the same Class of other Funds of the Trust. A shareholder may exchange
the shares of each Fund's Shares, for which good payment has been received, in
his or her account at any time, regardless of how long he or she has held his or
her shares. Exchanges are made at net asset value. The Trust reserves the right
to change the terms and conditions of the exchange privilege discussed herein,
or to terminate the exchange privilege, upon 60 days' notice. Exchanges will be
made only after proper instructions in writing or by telephone (an "Exchange
Request") are received for an established account by the Distributor.

Each Exchange Request must be in proper form (i.e., if in writing, signed by the
record owner(s) exactly as the shares are registered; if by telephone-proper
account identification is given by the dealer or shareholder of record), and
each exchange must involve either shares having an aggregate value of at least
$1,000 or all the shares in the account. Each exchange involves the redemption
of the shares of a Fund (the "Old Fund") to be exchanged and the purchase at net
asset

                                      S-26
<PAGE>   139

value of the shares of the other Funds (the "New Funds"). Any gain or loss on
the redemption of the shares exchanged is reportable on the shareholder's
federal income tax return, unless such shares were held in a tax-deferred
account or tax-qualified retirement plan. If the Exchange Request is received by
the Distributor in writing or by telephone on any business day prior to the
redemption cut-off time specified in the Prospectus, the exchange usually will
occur on that day if all the restrictions set forth above have been complied
with at that time. However, payment of the redemption proceeds by the Old Funds
and thus the purchase of shares of the New Funds, may be delayed for up to seven
days if the Fund determines that such delay would be in the best interest of all
of its shareholders. Investment dealers which have satisfied criteria
established by the Funds may also communicate a Shareholder's Exchange Request
to the Funds subject to the restrictions set forth above. No more than five
exchange requests may be made in any one telephone Exchange Request.


TAXES

The following is only a summary of certain additional federal tax considerations
generally affecting the Funds and their shareholders that are not described in
the Funds' prospectus. No attempt is made to present a detailed explanation of
the federal, state or local tax treatment of the Funds or their shareholders and
the discussion here and in the Funds' prospectus is not intended as a substitute
for careful tax planning.

This discussion of federal income tax consequences is based on the Internal
Revenue Code of 1986, as amended (the "Code"), and the regulations issued
thereunder, in effect on the date of this Statement of Additional Information.
New legislation, as well as administrative changes or court decisions, may
significantly change the conclusions expressed herein, and may have a
retroactive effect with respect to the transactions contemplated herein.

Each Fund is treated as a separate entity for federal income tax purposes and is
not combined with the Trust's other Funds. Each Fund intends to qualify as a
regulated investment company ("RIC") under Subchapter M of the Code so that it
will be relieved of federal income tax on that part of its income that is
distributed to shareholders. In order to qualify for treatment as a RIC, a Fund
must distribute annually to its shareholders at least 90% of its investment
company taxable income (generally, net investment income plus the excess, if
any, of net short-term capital gain over net long-term capital loss)
("Distribution Requirement") and also must meet several additional requirements.
Among these requirements are the following (i) at least 90% of a Fund's gross
income each taxable year must be derived from dividends, interest, payments with
respect to securities loans, and gains from the sale or other disposition of
stock or securities, or other income derived with respect to its business of
investing in such stock or securities; (ii) less than 30% of a Fund's gross
income each taxable year must be derived from the sale or other disposition of
stocks, securities or certain other investments held for less than three months;
(iii) at the close of each quarter of a Fund's taxable year, at least 50% of the
value of its total assets must be represented by cash and cash items, U.S.
government securities, securities of other RICs and other securities, with such
other securities limited, in respect of any one issuer, to an amount that does
not exceed 5% of the value of a Fund's assets and that does not represent more
than 10% of the outstanding voting securities of such issuer; and (iv) at the
close of each quarter of a Fund's taxable year, not more than 25% of the value
of its assets may be invested in securities (other than U.S. Government
securities or the securities of other RICs) of any one issuer or of two or more
issuers which are engaged in the same, similar, or related trades or businesses,
if the Fund owns at least 20% of the voting power of such issuers.

Notwithstanding the Distribution Requirement described above, which only
requires a Fund to distribute at least 90% of its annual investment company
taxable income and does not require any minimum distribution of net capital
gain, a Fund will be subject to a nondeductible 4% federal excise tax to the
extent it fails to distribute by the end of any calendar year at least 98% of
its ordinary income for that year and 98% of its capital gain net income (the
excess of short- and long-term capital gain over short- and long-term capital
loss) for the one-year period ending on October 31 of that year, plus certain
other amounts. Each Fund intends to make sufficient distributions to avoid
liability for the federal excise tax applicable to RICs. A Fund may in certain
circumstances be required to liquidate portfolio investments in order to make
sufficient distributions to avoid federal excise tax liability when the
investment advisor might not otherwise have chosen to do so, 

                                      S-27
<PAGE>   140

and liquidation of investments in such circumstances may affect the ability of a
Fund to satisfy the requirements for qualification as a RIC.

If capital gain distributions have been made with respect to shares that are
sold at a loss after being held for six months or less, then the loss is treated
as a long-term capital loss to the extent of the capital gain distributions.

If a Fund fails to qualify as a RIC for any year, all of its income will be
subject to tax at corporate rates, and its distributions (including capital gain
distributions) generally will be taxable as ordinary income dividends to its
shareholders, subject to the dividends received deduction for corporate
shareholders who have held shares for more than 45 days.

A Fund will be required in certain cases to withhold and remit to the United
States Treasury 31% of amounts payable to any shareholder who (1) has provided
the Fund either an incorrect tax identification number or no number at all, (2)
who is subject to backup withholding by the Internal Revenue Service for failure
to properly report payments of interest or dividends, or (3) who has failed to
certify to the Fund that such shareholder is not subject to backup withholding.

STATE TAXES

A Fund is not liable for any income or franchise tax in Massachusetts if it
qualifies as a RIC for federal income tax purposes. Distributions by a Fund to
shareholders and the ownership of shares may be subject to state and local
taxes. Shareholders should consult their own tax advisers regarding the effect
of federal, state and local taxes in their own individual circumstances.


PORTFOLIO TRANSACTIONS

The Trust has no obligation to deal with any dealer or group of dealers in the
execution of transactions in portfolio securities. Subject to policies
established by the Trustees, the advisers and sub-advisers are responsible for
placing orders to execute Fund transactions. In placing orders, it is the
Trust's policy to seek to obtain the best net results taking into account such
factors as price (including the applicable dealer spread), size, type and
difficulty of the transaction involved, the firm's general execution and
operational facilities, and the firm's risk in positioning the securities
involved. While the advisers generally seek reasonably competitive spreads or
commissions, the Trust will not necessarily be paying the lowest spread or
commission available. The Trust will not purchase portfolio securities from any
affiliated person acting as principal except in conformity with the regulations
of the SEC.

It is expected that the Funds may execute brokerage or other agency transactions
through the Distributor, a registered broker-dealer, for a commission, in
conformity with the 1940 Act, the Securities Exchange Act of 1934, as amended,
and rules and regulations of the SEC. Under these provisions, the Distributor is
permitted to receive and retain compensation for effecting portfolio
transactions for a Fund on an exchange if a written contract is in effect
between the Distributor and the Trust expressly permitting the Distributor to
receive and retain such compensation. These provisions further require that
commissions paid to the Distributor by the Trust for exchange transactions not
exceed "usual and customary" brokerage commissions. The rules define "usual and
customary" commissions to include amounts which are "reasonable and fair
compared to the commission, fee or other remuneration received or to be received
by other brokers in connection with comparable transactions involving similar
securities being purchased or sold on a securities exchange during a comparable
period of time." In addition, the Fund may direct commission business to one or
more designated broker-dealers, including the Distributor, in connection with
such broker-dealer's payment of certain of the Fund's expenses. The Trustees,
including those who are not "interested persons" of the Trust, have adopted
procedures for evaluating the reasonableness of commissions paid to the
Distributor and will review these procedures periodically. In addition, SFM has
adopted a policy respecting the receipt of research and related products and
services in connection with transactions effected for the Underlying Portfolios
operating within the "Manager of Managers" structure. Under this policy, SFM and
the various firms that serve as sub-advisers to certain Underlying Portfolios,
in the exercise of joint 

                                      S-28
<PAGE>   141

investment discretion over the assets of an Underlying Portfolio, will direct a
substantial portion of an Underlying Portfolio's brokerage to the Distributor in
consideration of the Distributor's provision of research and related products to
SFM for use in performing its advisory responsibilities. All such transactions
directed to the Distributor must be accomplished in a manner that is consistent
with each Underlying Trust's policy to achieve best net results, and must comply
with each Underlying Trust's procedures regarding the execution of transactions
through affiliated brokers.

Since the Trust does not market its shares through intermediary brokers or
dealers, it is not the Trust's practice to allocate brokerage or principal
business on the basis of sales of its shares which may be made through such
firms. However, the Underlying Portfolio's advisers or sub-advisers may place
portfolio orders with qualified broker-dealers who recommend the Trust to
clients, and may, when a number of brokers and dealers can provide best price
and execution on a particular transaction, consider such recommendations by a
broker or dealer in selecting among broker-dealers.

The Trust does not expect to use one particular dealer, but the Underlying
Portfolio's advisers or sub-advisers may, consistent with the interests of the
Underlying Portfolios, select brokers on the basis of the research services they
provide to the Underlying Portfolio's advisers and sub-advisers. Such services
may include analysis of the business or prospects of a company, industry or
economic sector or statistical and pricing services. Information so received by
the advisers or sub-advisers will be in addition to and not in lieu of the
services required to be performed by an Underlying Portfolio's advisers or
sub-advisers under the advisory and sub-advisory agreements. If in the judgment
of an Underlying Portfolio's advisers, the Underlying Portfolio, or other
accounts managed by the Underlying Portfolio's advisers or sub-advisers, will be
benefitted by supplemental research services, the Underlying Portfolio's
advisers or sub-advisers are authorized to pay brokerage commissions to a broker
furnishing such services that are in excess of commissions which another broker
may have charged for effecting the same transaction. The expenses of an
Underlying Portfolio's advisers or sub-advisers will not necessarily be reduced
as a result of the receipt of such supplemental information.


DESCRIPTION OF SHARES

The Declaration of Trust authorizes the issuance of an unlimited number of
shares of each Fund, each of which represents an equal proportionate interest in
that Fund. Each share upon liquidation entitles a shareholder to a pro rata
share in the net assets of that Fund, after taking into account the additional
distribution, shareholder servicing and transfer agency expenses attributable to
Class D Shares. Shareholders have no preemptive rights. The Declaration of Trust
provides that the Trustees of the Trust may create additional series of shares
or separate classes of portfolios. Share certificates representing the shares
will not be issued.


LIMITATION OF TRUSTEES' LIABILITY

The Declaration of Trust provides that a Trustee shall be liable only for his or
her own willful defaults and, if reasonable care has been exercised in the
selection of officers, agents, employees or administrators, shall not be liable
for any neglect or wrongdoing of any such person. The Declaration of Trust also
provides that the Trust will indemnify its Trustees and officers against
liabilities and expenses incurred in connection with actual or threatened
litigation in which they may be involved because of their offices with the Trust
unless it is determined in the manner provided in the Declaration of Trust that
they have not acted in good faith in the reasonable belief that their actions
were in the best interests of the Trust. However, nothing in the Declaration of
Trust shall protect or indemnify a Trustee against any liability for his or her
willful misfeasance, bad faith, gross negligence or reckless disregard of his or
her duties.

                                      S-29
<PAGE>   142

VOTING

Where the Trust's Prospectus or Statement of Additional Information states that
an investment limitation or a fundamental policy may not be changed without
shareholder approval, such approval means the vote of (i) 67% or more of the
affected Fund's shares present at a meeting if the holders of more than 50% of
the outstanding shares of the Fund are present or represented by Proxy, or (ii)
more than 50% of the affected Fund's outstanding shares, whichever is less.

SHAREHOLDER LIABILITY

The Trust is an entity of the type commonly known as a "Massachusetts business
trust." Under Massachusetts law, shareholders of such a trust could, under
certain circumstances, be held personally liable as partners for the obligations
of the Trust. Even if, however, the Trust were held to be a partnership, the
possibility of the shareholders incurring financial loss for that reason appears
remote because the Trust's Declaration of Trust contains an express disclaimer
of shareholder liability for obligations of the Trust and requires that notice
of such disclaimer be given in each agreement, obligation or instrument entered
into or executed by or on behalf of the Trust or the Trustees, and because, the
Declaration of Trust provides for indemnification out of the Trust property for
any shareholders held personally liable for the obligations of the Trust.


EXPERTS

   
The financial statements dated February 16, 1996 included in this Statement of
Additional Information have been so included in reliance on the report of Price
Waterhouse LLP, independent accountants, given on the authority of said firm as
experts in auditing and accounting.
    


FINANCIAL STATEMENTS

   
Following are the Funds' audited seed capital financial statements dated
February 16, 1996 and unaudited financial statements for the period from
commencement of operations of each Fund until July 31, 1996.
    




                                      S-30
<PAGE>   143
                       REPORT OF INDEPENDENT ACCOUNTANTS

To the Shareholder and Board of Directors
SEI Asset Allocation Trust

In our opinion, the accompanying statement of assets and liabilities presents
fairly, in all material respects, the financial position of Diversified
Conservative Income, Diversified Conservative, Diversified Moderate Growth,
Diversified Growth and Diversified U.S. Stock Funds (constituting SEI Asset
Allocation Trust, hereafter referred to as the "Trust") at February 16, 1996,
in conformity with generally accepted accounting principles. This financial
statement is the responsibility of the Trust's management; our responsibility
is to express an opinion on this financial statement based on our audit. We
conducted our audit of this financial statement in accordance with generally
accepted auditing standards which require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statement is free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statement, assessing
the accounting principles used and significant estimates made by management,
and evaluating the overall financial statement presentation. We believe that
our audit provides a reasonable basis for the opinion expressed above.

/s/ Price Waterhouse LLP

PRICE WATERHOUSE LLP

Thirty South Seventeenth Street
Philadelphia, Pennsylvania
February 21, 1996


<PAGE>   144



SEI ASSET ALLOCATION TRUST

Statement of Assets and Liabilities
February 16, 1996

Diversified Growth Fund

Assets:
<TABLE>
<S>                                                                             <C>         <C>
         Cash                                                                               $ 1,000
         Deferred Organization Costs                                                         16,400
         Deferred Offering Costs                                                             23,000
                                                                                            -------
                  Total Assets                                                               40,400
                                                                                            -------

Liabilities:
         Due to Manager                                                           39,400
                                                                                 -------

Net Assets                                                                                  $ 1,000
                                                                                            =======

Net Assets Consist of:
         Portfolio shares of Class A (unlimited authorization - no par value)
           based on 50.000 outstanding shares of beneficial interest                        $   500
         Portfolio shares of Class D (unlimited authorization - no par value)
           based on 50.000 outstanding shares of beneficial interest                            500
                                                                                             -------
Total Net Assets:                                                                $ 1,000
                                                                                 =======

Net Asset Value, Offering and Redemption Price, Class A                          $ 10.00
                                                                                 =======

Net Asset Value, Offering and Redemption Price, Class D                          $ 10.00
                                                                                 =======
</TABLE>


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













                                      S-31

<PAGE>   145



SEI ASSET ALLOCATION TRUST

Statement of Assets and Liabilities
February 16, 1996

Diversified U.S. Stock Fund

<TABLE>
Assets:
<S>                                                                                 <C>         <C>    
         Cash                                                                                   $ 1,000
         Deferred Organization Costs                                                             16,400
         Deferred Offering Costs                                                                 23,000
                                                                                                -------
                  Total  Assets                                                                  40,400
                                                                                                ------- 
Liabilities:
         Due to Manager                                                              39,400
                                                                                    -------
Net Assets                                                                                      $ 1,000
                                                                                                =======

Net Assets Consist of:
         Portfolio shares of Class A (unlimited authorization - no par value)
           based on 50.000 outstanding shares of beneficial interest                            $   500
         Portfolio shares of Class D (unlimited authorization - no par value)
           based on 50.000 outstanding shares of beneficial interest                                500
                                                                                                -------
Total Net Assets:                                                                   $ 1,000
                                                                                    =======

Net Asset Value, Offering and Redemption Price, Class A                             $ 10.00
                                                                                    =======

Net Asset Value, Offering and Redemption Price, Class D                             $ 10.00
                                                                                    =======
</TABLE>


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
















                                      S-32

<PAGE>   146



SEI ASSET ALLOCATION TRUST

Statement of Assets and Liabilities
February 16, 1996

Diversified Conservative Fund

<TABLE>
Assets:
<S>                                                                                 <C>         <C>    
         Cash                                                                                   $ 1,000
         Deferred Organization Costs                                                             16,400
         Deferred Offering Costs                                                                 23,000
                                                                                                -------
                  Total  Assets                                                                  40,400
                                                                                                -------
Liabilities:
         Due to Manager                                                              39,400
                                                                                    -------
Net Assets                                                                                      $ 1,000
                                                                                                =======

Net Assets Consist of:
         Portfolio shares of Class A (unlimited authorization - no par value)
           based on 50.000 outstanding shares of beneficial interest                            $   500
         Portfolio shares of Class D (unlimited authorization - no par value)
           based on 50.000 outstanding shares of beneficial interest                                500
                                                                                                -------
Total Net Assets:                                                                   $ 1,000
                                                                                    =======

Net Asset Value, Offering and Redemption Price, Class A                             $ 10.00
                                                                                    =======

Net Asset Value, Offering and Redemption Price, Class D                             $ 10.00
                                                                                    =======
</TABLE>


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











                                      S-33

<PAGE>   147



SEI ASSET ALLOCATION TRUST

Statement of Assets and Liabilities
February 16, 1996

Diversified Moderate Growth Fund

<TABLE>
Assets:
<S>                                                                                 <C>         <C>    
         Cash                                                                                   $ 1,000
         Deferred Organization Costs                                                             16,400
         Deferred Offering Costs                                                                 23,000
                                                                                                -------
                  Total  Assets                                                                  40,400
                                                                                                -------
Liabilities:
         Due to Manager                                                              39,400
                                                                                    -------
Net Assets                                                                                      $ 1,000
                                                                                                =======

Net Assets Consist of:
         Portfolio shares of Class A (unlimited authorization - no par value)
           based on 50.000 outstanding shares of beneficial interest                            $   500
         Portfolio shares of Class D (unlimited authorization - no par value)
           based on 50.000 outstanding shares of beneficial interest                                500
                                                                                                -------
Total Net Assets:                                                                   $ 1,000
                                                                                    =======

Net Asset Value, Offering and Redemption Price, Class A                             $ 10.00
                                                                                    =======

Net Asset Value, Offering and Redemption Price, Class D                             $ 10.00
                                                                                    =======
</TABLE>


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










                                      S-34

<PAGE>   148

SEI ASSET ALLOCATION TRUST

Statement of Assets and Liabilities
February 16, 1996

Diversified Conservative Income Fund

<TABLE>
Assets:
<S>                                                                                 <C>         <C>     
         Cash                                                                                    $ 96,000
         Deferred Organization Costs                                                               16,400
         Deferred Offering Costs                                                                   23,000
                                                                                                 --------
                  Total  Assets                                                                   135,400
                                                                                                 --------
Liabilities:
         Due to Manager                                                               39,400
                                                                                    --------
Net Assets                                                                                       $ 96,000
                                                                                                 ========

Net Assets Consist of:
         Portfolio shares of Class A (unlimited authorization - no par value)
           based on 9,550.000 outstanding shares of beneficial interest             $ 95,500
         Portfolio shares of Class D (unlimited authorization - no par value)
           based on 50.000 outstanding shares of beneficial interest                                 500
                                                                                                --------
Total Net Assets:                                                                               $ 96,000
                                                                                                ========

Net Asset Value, Offering and Redemption Price, Class A                             $  10.00
                                                                                    ========
Net Asset Value, Offering and Redemption Price, Class D                             $  10.00
                                                                                    ========
</TABLE>


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












                                      S-35

<PAGE>   149


SEI ASSET ALLOCATION TRUST

Notes to Financial Statements (continued)
February 16, 1996






SEI ASSET ALLOCATION TRUST

Notes to Financial Statements
February 16, 1996

1. Organization:

The Trust is organized as a Massachusetts Business Trust under a Declaration of
Trust dated November 20, 1995. The Trust is registered under the Investment
Company Act of 1940, as amended, as an open-end investment company with five
diversified Funds: Diversified Conservative Income Fund, Diversified
Conservative Fund, Diversified Moderate Growth Fund, Diversified Growth Fund,
and Diversified U.S. Stock Fund. Each Fund offers shareholders the opportunity
to invest in certain of the Underlying Portfolios, which are separately-managed
series of the following investment companies: SEI Institutional Managed Trust,
SEI International Trust, SEI Liquid Asset Trust. The Declaration of Trust
permits the Trust to offer separate classes of shares in each Fund, Class A
Shares and Class D Shares. The assets of each Fund are segregated, and a
shareholder's interest is limited to the Fund in which shares are held. The
Funds have not commenced operations except those related to organizational
matters and the sale of initial shares of beneficial interest to SEI Financial
Management Corporation (the "Adviser" and "Manager") on February 16, 1996. The
following is a summary of the significant accounting policies followed by the
Trust.

2. Investment Advisory, Management, Distribution and Shareholder Servicing
Agreements:

The Trust expects to enter into the following service agreements:

Under the Investment Advisory Agreement with the Trust, SEI Financial
Management Corporation ("SFM" or the "Adviser") will act as the investment
adviser to each Fund. For its investment advisory services to the Trust, the
Adviser will be entitled to a fee, which is calculated daily and paid monthly,
at an annual rate of .10% of each Fund's average daily net assets.

Under the Administration Agreement with the Trust, SFM will also provide the
Trust with overall management services, and act as dividend disbursing agent and
shareholder servicing agent. For these services to the Funds, SFM will be
entitled to a fee, which is calculated daily and paid monthly, at an annual rate
of .20% of the average daily net assets of each Fund.

SEI Financial Services company (the "Distributor"), a wholly-owned subsidiary of
SEI, will serve as each Fund's distributor pursuant to a distribution agreement
(the "Distribution Agreement") with the Trust. The Trustees of the Trust have
adopted a distribution and service plan for the Trust's Class D shares (the
"Class D Plan") pursuant to Rule 12b-1 under the 1940 Act. The Class D Plan
provides for payments to the distributor for distribution-related services at an









                                      S-36

<PAGE>   150


SEI ASSET ALLOCATION TRUST

Notes to Financial Statements (continued)
February 16, 1996






annual rate of .75% of each Fund's average daily net assets attributable to
Class D Shares. In addition, each Fund is authorized to pay the Distributor a
fee in connection with the ongoing servicing of shareholder accounts owning such
Class D Shares, calculated and payable monthly, at an annual rate of .25% of the
value of the average daily net assets attributable to Class D Shares of the
Fund. Periodically, the Distributor may waive a portion of the fees payable to
it under the Class D Plan in order to keep within certain sales charge limits
imposed by the Rules of the NASD. Specifically, any Fund's distribution/
shareholder servicing fees will be reduced in an amount equal to the Fund's 
pro rata portion of any Underlying Portfolio in which the Fund invests.

3. Organizational Costs, Offering Costs and Transactions with Affiliates:

 Organizational costs have been capitalized by the Fund and are being amortized
over 60 months commencing with operations. In the event any of the initial
shares are redeemed by any holder thereof during the period that the fund is
amortizing its organizational costs, the redemption proceeds payable to the
holder thereof by the Fund will be reduced by the unamortized organizational
costs in the same ratio as the number of initial shares being redeemed bears to
the number of initial shares outstanding at the time of the redemption. These
costs include legal fees of approximately $50,000 for organizational work
performed by a law firm of which an officer and Trustee of the Trust is a
Partner.

Offering costs have been capitalized by the Fund and will be amortized over
twelve months commencing with operations.

Certain officers and/or trustees of the Trust are also officers of the Manager
and Adviser. The Trust pays each unaffiliated Trustee an annual fee for
attendance of quarterly, interim and committee meetings. Compensation of
officers and affiliated Trustees of the Trust is paid by the Manager.









                                      S-37
<PAGE>   151
SEI Asset Allocation Trust
Diversified Conservative Income Fund
July 31, 1996- Unaudited

Schedule of Investments

<TABLE>
<CAPTION>
Description                                                              Shares          Value
- -----------                                                              ------          -----
<S>                                                                      <C>          <C>       
Equity Funds - 24.1%
      SEI Institutional Managed Trust Large Cap Value Portfolio           10,432      $  143,861
      SEI Institutional Managed Trust Large Cap Growth Portfolio          11,522         156,003
      SEI Institutional Managed Trust Small Cap Value Portfolio            2,311          27,873
      SEI Institutional Managed Trust Small Cap Growth Portfolio           1,523          26,404
                                                                                      ----------
           Total Equity Funds (cost $368,906)                                            354,141
                                                                                      ----------

Fixed Income Funds - 55.6%
      SEI Institutional Managed Trust Core Fixed Income Portfolio
           (cost $812,160)                                                80,084         816,053
                                                                                      ----------

Money Market Funds - 19.8%
      SEI Liquid Asset Trust Prime Obligation Portfolio
           (cost $291,071)                                               291,071         291,071
                                                                                      ----------

Total Investments - 99.5% of net assets
           (cost $1,472,137)                                                          $1,461,265
                                                                                      ==========
</TABLE>

The accompanying notes are an integral part of the financial statements.
<PAGE>   152
SEI Asset Allocation Trust
Diversified Conservative Fund
July 31, 1996- Unaudited

Schedule of Investments

<TABLE>
<CAPTION>
Description                                                                Shares        Value
- -----------                                                                ------        -----
<S>                                                                        <C>         <C>       
Equity Funds - 38.3%
      SEI Institutional Managed Trust Large Cap Value Portfolio            11,377      $  156,885
      SEI Institutional Managed Trust Large Cap Growth Portfolio           12,423         168,210
      SEI Institutional Managed Trust Small Cap Value Portfolio             2,956          35,654
      SEI Institutional Managed Trust Small Cap Growth Portfolio            1,315          22,803
      SEI International Trust Core International Equity Portfolio           9,573          97,361
                                                                                       ----------
           Total Equity Funds (cost $497,224)                                             480,913
                                                                                       ----------

Fixed Income Funds - 58.9%
      SEI Institutional Managed Trust Core Fixed Income Portfolio          53,784         548,061
      SEI International Trust International Fixed Income Portfolio         17,262         191,265
                                                                                       ----------
           Total Fixed Income Funds (cost $732,047)                                       739,326
                                                                                       ----------

Money Market Funds - 1.0%
      SEI Liquid Asset Trust Prime Obligation Portfolio
           (cost $12,412)                                                  12,412          12,412
                                                                                       ----------

Total Investments - 98.2% of net assets
           (cost $1,241,683)                                                           $1,232,651
                                                                                       ==========
</TABLE>

The accompanying notes are an integral part of the financial statements.
<PAGE>   153
SEI Asset Allocation Trust
Diversified Moderate Growth Fund
July 31, 1996- Unaudited

Schedule of Investments

<TABLE>
<CAPTION>
Description                                                              Shares           Value
- -----------                                                              ------           -----
<S>                                                                       <C>          <C>       
Equity Funds - 58.4%
      SEI Institutional Managed Trust Large Cap Value Portfolio           127,374      $1,756,488
      SEI Institutional Managed Trust Large Cap Growth Portfolio          136,134       1,843,260
      SEI Institutional Managed Trust Small Cap Value Portfolio            28,431         342,874
      SEI Institutional Managed Trust Small Cap Growth Portfolio           14,057         243,752
      SEI International Trust Core International Equity Portfolio         104,680       1,064,592
                                                                                       ----------
           Total Equity Funds (cost $5,422,273)                                         5,250,966
                                                                                       ----------

Fixed Income Funds - 39.7%
      SEI Institutional Managed Trust Core Fixed Income Portfolio         258,807       2,637,245
      SEI International Trust International Fixed Income Portfolio         83,898         929,595
                                                                                       ----------
           Total Fixed Income Funds (cost $3,523,360)                                   3,566,840
                                                                                       ----------

Money Market Funds - 1.0%
      SEI Liquid Asset Trust Prime Obligation Portfolio
           (cost $90,393)                                                  90,393          90,393
                                                                                       ----------

Total Investments - 99.1% of net assets
           (cost $9,036,026)                                                           $8,908,199
                                                                                       ==========
</TABLE>

The accompanying notes are an integral part of the financial statements.
<PAGE>   154
SEI Asset Allocation Trust
Diversified Global Growth Fund
July 31, 1996- Unaudited

Schedule of Investments

<TABLE>
<CAPTION>
Description                                                               Shares         Value
- -----------                                                               ------         -----
<S>                                                                       <C>          <C>  
Equity Funds - 79.2%
      SEI Institutional Managed Trust Large Cap Value Portfolio           150,522      $2,075,706
      SEI Institutional Managed Trust Large Cap Growth Portfolio          161,699       2,189,405
      SEI Institutional Managed Trust Small Cap Value Portfolio            37,064         446,989
      SEI Institutional Managed Trust Small Cap Growth Portfolio           20,124         348,958
      SEI International Trust Core International Equity Portfolio         142,979       1,454,092
      SEI International Trust Emerging Markets Equity Portfolio            62,014         697,036
                                                                                       ----------
           Total Equity Funds (cost $7,361,580)                                         7,212,186
                                                                                       ----------

Fixed Income Funds - 19.4%
      SEI Institutional Managed Trust Core Fixed Income Portfolio         108,869       1,109,371
      SEI Institutional Managed Trust High Yield Bond Portfolio            33,893         368,420
      SEI International Trust International Fixed Income Portfolio         25,603         283,684
                                                                                       ----------
           Total Fixed Income Funds (cost $1,748,345)                                   1,761,475
                                                                                       ----------

Money Market Funds - 1.0%
      SEI Liquid Asset Trust Prime Obligation Portfolio
           (cost $92,043)                                                  92,043          92,043
                                                                                       ----------

Total Investments - 99.6% of net assets
           (cost $9,201,968)                                                           $9,065,704
                                                                                       ==========
</TABLE>

The accompanying notes are an integral part of the financial statements.
<PAGE>   155
SEI Asset Allocation Trust
Diversified U.S. Stock Fund
July 31, 1996- Unaudited

Schedule of Investments

<TABLE>
<CAPTION>
Description                                                             Shares        Value
- -----------                                                             ------        -----
<S>                                                                     <C>         <C>       
Equity Funds - 98.5%
      SEI Institutional Managed Trust Large Cap Value Portfolio         227,188     $3,132,924
      SEI Institutional Managed Trust Large Cap Growth Portfolio        237,830      3,220,217
      SEI Institutional Managed Trust Small Cap Value Portfolio          55,700        671,739
      SEI Institutional Managed Trust Small Cap Growth Portfolio         28,722        498,038
                                                                                    ----------
           Total Equity Funds (cost $7,720,162)                                      7,522,918
                                                                                    ----------

Money Market Funds - 1.0%
      SEI Liquid Asset Trust Prime Obligation Portfolio
           (cost $78,338)                                                78,338         78,338
                                                                                    ----------

Total Investments - 99.5% of net assets
           (cost $7,798,500)                                                        $7,601,256
                                                                                    ==========
</TABLE>

The accompanying notes are an integral part of the financial statements.
<PAGE>   156
SEI Asset Allocation Trust
July 31, 1996 - Unaudited

Statement of Assets and Liabilities

<TABLE>
<CAPTION>
                                                                       Diversified                   Diversified
                                                                       Conservative   Diversified      Moderate
                                                                          Income      Conservative      Growth
                                                                           Fund           Fund           Fund
                                                                           ----           ----           ----
<S>                                                                     <C>           <C>            <C>
Assets:                                                                                              
      Investments at value                                                                           
          (cost $1,472,137, $1,241,683,                                                              
           and $9,036,026, respectively)                                $ 1,461,265   $ 1,232,651    $ 8,908,199
      Deferred organization costs                                             8,545         8,545          8,545
      Prepaid state registration fees                                        20,862        19,396         19,475
      Dividends receivable                                                    3,851         1,795          8,118
      Receivable for capital shares sold                                          0        20,006         41,802
      Receivable from administrator                                               0             0         12,715
      Other assets                                                            1,081           690          2,710
                                                                        -----------   -----------    -----------
                                                                                                     
                                                                                                     
      Total assets                                                        1,495,604     1,283,083      9,001,564
                                                                        -----------   -----------    -----------
                                                                                                     
Liabilities:                                                                                         
      Payable to administrator                                               20,108        14,908              0
      Other liabilities                                                       7,818        13,302         15,023
                                                                        -----------   -----------    -----------
                                                                                                     
      Total liabilities                                                      27,926        28,210         15,023
                                                                        -----------   -----------    -----------
                                                                                                     
Net assets:                                                             $ 1,467,678   $ 1,254,873    $ 8,986,541
                                                                        ===========   ===========    ===========
                                                                                                     
Net assets consist of:                                                                               
      Portfolio shares of Class A (unlimited authorization- 
        no par value) based on 115,996, 106,401, and 
        533,155 outstanding shares of beneficial interest,
        respectively                                                    $ 1,168,495   $   982,432    $ 5,408,761
      Portfolio shares of Class D (unlimited authorization-                                          
        no par value) based on 30,254, 30,431, and                                                   
        371,836 outstanding shares of beneficial interest,                                           
        respectively                                                        303,581       278,371      3,693,286
      Undistributed net investment income                                     5,901         3,141         15,531
      Accumulated net realized gain (loss) on investments                       573           (39)        (3,210)
      Net unrealized depreciation on investments                            (10,872)       (9,032)      (127,827)
                                                                        -----------   -----------    -----------
                                                                        $ 1,467,678   $ 1,254,873    $ 8,986,541
                                                                        ===========   ===========    ===========
                                                                                                     
Net asset value, offering and redemption price per share - Class A      $     10.04   $      9.18    $      9.94
                                                                        ===========   ===========    ===========
                                                                                                     
Net asset value, offering and redemption price per share - Class D      $     10.02   $      9.16    $      9.91 
                                                                        ===========   ===========    ===========   
</TABLE>

The accompanying notes are an integral part of the financial statements.
<PAGE>   157
SEI Asset Allocation Trust
July 31, 1996 - Unaudited

Statement of Assets and Liabilities

<TABLE>
<CAPTION>
                                                                         Diversified        Diversified
                                                                        Global Growth        U.S. Stock
                                                                            Fund                Fund
                                                                            ----                ----
<S>                                                                      <C>                <C>        
Assets:
      Investments at value
          (cost $9,201,968, and $7,798,500, respectively)                $ 9,065,704        $ 7,601,256
      Deferred organization costs                                              8,545              8,545
      Prepaid state registration fees                                         19,375             22,390
      Dividends receivable                                                     4,382                254
      Receivable from administrator                                           13,124             12,842
      Other assets                                                             5,430                  0
                                                                         -----------        -----------

      Total assets                                                         9,116,560          7,645,287
                                                                         -----------        -----------

Liabilities:
      Other liabilities                                                       15,810              4,144
                                                                         -----------        -----------

Net assets:                                                              $ 9,100,750        $ 7,641,143
                                                                         ===========        ===========

Net assets consist of:
      Portfolio shares of Class A (unlimited authorization-
        no par value) based on 396,399, and 372,833
        outstanding shares of beneficial interest,
        respectively                                                     $ 3,965,615        $ 3,826,105
      Portfolio shares of Class D (unlimited authorization-
        no par value) based on 532,523, and 412,993
        outstanding shares of beneficial interest,
        respectively                                                       5,264,422          4,039,031
      Undistributed net investment income                                      7,051              7,990
      Accumulated net realized loss on investments                               (74)           (34,739)
      Net unrealized depreciation on investments                            (136,264)          (197,244)
                                                                         -----------        -----------
                                                                         $ 9,100,750        $ 7,641,143
                                                                         ===========        ===========

Net asset value, offering and redemption price per share - Class A       $      9.81        $      9.74
                                                                         ===========        ===========

Net asset value, offering and redemption price per share - Class D       $      9.79        $      9.71
                                                                         ===========        ===========
</TABLE>

The accompanying notes are an integral part of the financial statements.
<PAGE>   158
SEI Asset Allocation Trust

Statement of Operations
For the period ended July 31, 1996 - Unaudited


<TABLE>
<CAPTION>
                                                               Diversified                     Diversified
                                                               Conservative     Diversified      Moderate
                                                                  Income        Conservative      Growth
                                                                 Fund (1)         Fund (2)        Fund (3)
                                                                 --------         --------        --------
<S>                                                             <C>              <C>              <C>      
Investment income:
      Dividends                                                 $   7,025        $   3,487        $  20,279
                                                                ---------        ---------        ---------

Expenses:
      Administration fees                                             283              198            1,597
      Less administration fees waived                                (283)            (198)          (1,597)
      Investment advisory fees                                        142               99              799
      Less investment advisory fees waived                           (142)             (99)            (799)
      Contribution from administrator                             (13,421)          (9,867)         (16,516)
      Custodian fees                                                  268              197              345
      Transfer agent fees                                           5,156            3,788            6,629
      Professional fees                                             1,841            1,353            2,368
      Registration & filing fees                                    2,937            2,157            3,776
      Printing                                                      2,685            1,972            3,452
      Trustee                                                         268              197              345
      Insurance                                                       168              123              215
      Distribution & shareholder servicing fees*                      205              150            1,988
      Amortization of deferred organization costs                     268              198              344
                                                                ---------        ---------        ---------
                   Total expenses                                     375              268            2,946
                                                                ---------        ---------        ---------

Net investment income                                               6,650            3,219           17,333
                                                                ---------        ---------        ---------

Net realized and unrealized gain (loss) on investments
      Net realized gain (loss) from security transactions             574              (39)          (3,210)
      Net change in unrealized depreciation
        on investments                                            (11,575)          (8,966)        (127,845)
                                                                ---------        ---------        ---------

Net decrease in net assets from operations                      ($  4,351)       ($  5,786)       ($113,722)
                                                                =========        =========        =========
</TABLE>

* All distribution and shareholder servicing fees are incurred at the Class D 
  level.

(1) Commenced operations 06/13/96

(2) Commenced operations 06/26/96

(3) Commenced operations 05/30/96

The accompanying notes are an integral part of the financial statements.
<PAGE>   159
SEI Asset Allocation Trust

Statement of Operations
For the period ended July 31, 1996 - Unaudited



<TABLE>
<CAPTION>
                                                         Diversified     Diversified
                                                        Global Growth     U.S. Stock
                                                           Fund (1)        Fund (2)
                                                           --------        --------
<S>                                                      <C>              <C>      
Investment income:
      Dividends                                          $  10,731        $  10,721
                                                         ---------        ---------

Expenses:
      Administration fees                                    1,198            1,385
      Less administration fees waived                       (1,198)          (1,385)
      Investment advisory fees                                 599              693
      Less investment advisory fees waived                    (599)            (693)
      Contribution from administrator                      (16,761)         (21,359)
      Custodian fees                                           345              438
      Transfer agent fees                                    6,629            8,418
      Professional fees                                      2,368            3,006
      Registration & filing fees                             3,776            4,794
      Printing                                               3,452            4,383
      Trustee                                                  345              438
      Insurance                                                215              274
      Distribution & shareholder servicing fees*             2,710            1,900
      Amortization of deferred organization costs              346              438
                                                         ---------        ---------
                   Total expenses                            3,425            2,730
                                                         ---------        ---------

Net investment income                                        7,306            7,991
                                                         ---------        ---------

Net realized and unrealized loss on investments
      Net realized loss from security transactions             (75)         (34,739)
      Net change in unrealized depreciation
        on investments                                    (136,284)        (197,258)
                                                         ---------        ---------

Net decrease in net assets from operations               ($129,053)       ($224,006)
                                                         =========        =========
</TABLE>

* All distribution and shareholder servicing fees are incurred at the Class D 
  level.

(1) Commenced operations 05/30/96

(2) Commenced operations 05/13/96

The accompanying notes are an integral part of the financial statements.
<PAGE>   160
SEI Asset Allocation Trust

Statement of Changes in Net Assets
For the period ended July 31, 1996 - Unaudited

<TABLE>
<CAPTION>
                                                                  Diversified                          Diversified
                                                                 Conservative      Diversified           Moderate
                                                                    Income         Conservative           Growth
                                                                   Fund (1)          Fund (2)            Fund (3)
                                                                   --------          --------            --------
<S>                                                              <C>                <C>                <C>
Operations:
      Net investment income                                      $     6,650        $     3,219        $    17,333
      Net realized gain (loss) from security transactions                574                (39)            (3,210)
      Net change in unrealized depreciation
        on investments                                               (11,575)            (8,966)          (127,845)
                                                                 -----------        -----------        -----------
      Net decrease in net assets resulting from operations            (4,351)            (5,786)          (113,722)
                                                                 -----------        -----------        -----------

Dividends distributed from:
      Net investment income:
        Class A                                                       (1,115)               (91)            (1,803)
        Class D                                                          (72)                 0                  0
                                                                 -----------        -----------        -----------
          Total dividends distributed                                 (1,187)               (91)            (1,803)
                                                                 -----------        -----------        -----------

Capital share transactions:
      Class A
        Proceeds from shares issued                                1,262,031            981,841          5,501,513
        Shares issued in lieu of cash distributions                    1,115                 91              1,775
        Cost of shares repurchased                                  (190,153)                 0            (95,027)
        Increase in net assets derived from
                                                                 -----------        -----------        -----------
          Class A transactions                                     1,072,993            981,932          5,408,261
                                                                 -----------        -----------        -----------
      Class D
        Proceeds from shares issued                                  303,081            277,871          3,692,786
        Shares issued in lieu of cash distributions                        0                  0                  0
        Cost of shares repurchased                                         0                  0                  0
        Increase in net assets derived from
                                                                 -----------        -----------        -----------
          Class D transactions                                       303,081            277,871          3,692,786
                                                                 -----------        -----------        -----------
        Increase in net assets derived from capital
                                                                 -----------        -----------        -----------
          share transactions                                       1,376,074          1,259,803          9,101,047
                                                                 -----------        -----------        -----------

      Net increase in net assets                                   1,370,536          1,253,926          8,985,522
                                                                 -----------        -----------        -----------

Net assets:
      Beginning of period                                             97,142                947              1,019
                                                                 -----------        -----------        -----------
      End of period                                              $ 1,467,678        $ 1,254,873        $ 8,986,541
                                                                 ===========        ===========        ===========

Capital share transactions:
      Class A
        Shares issued                                                125,132            106,341            542,464
        Shares issued in lieu of cash distributions                      109                 10                173
        Shares repurchased                                           (18,795)                 0             (9,532)
                                                                 -----------        -----------        -----------
          Total Class A transactions                                 106,446            106,351            533,105
                                                                 ===========        ===========        ===========
      Class D
        Shares issued                                                 30,204             30,381            371,786
        Shares issued in lieu of cash distributions                        0                  0                  0
        Shares repurchased                                                 0                  0                  0
                                                                 -----------        -----------        -----------
          Total Class D transactions                                  30,204             30,381            371,786
                                                                 ===========        ===========        ===========
</TABLE>

(1) Commenced operations 06/13/96

(2) Commenced operations 06/26/96

(3) Commenced operations 05/30/96

The accompanying notes are an integral part of the financial statements.
<PAGE>   161
SEI Asset Allocation Trust

Statement of Changes in Net Assets
For the period ended July 31, 1996 - Unaudited

<TABLE>
<CAPTION>
                                                                 Diversified       Diversified
                                                                Global Growth       U.S. Stock
                                                                  Fund (1)           Fund (2)
                                                                  --------           --------
<S>                                                              <C>                <C>        
Operations:
      Net investment income                                      $     7,306        $     7,991
      Net realized loss from security transactions                       (75)           (34,739)
      Net change in unrealized depreciation
        on investments                                              (136,284)          (197,258)
                                                                 -----------        -----------
      Net decrease in net assets resulting from operations          (129,053)          (224,006)
                                                                 -----------        -----------

Dividends distributed from:
      Net investment income:
        Class A                                                         (255)                 0
        Class D                                                            0                  0
                                                                 -----------        -----------
          Total dividends distributed                                   (255)                 0
                                                                 -----------        -----------

Capital share transactions:
      Class A
        Proceeds from shares issued                                3,964,860          5,266,344
        Shares issued in lieu of cash distributions                      255                  0
        Cost of shares repurchased                                         0         (1,440,739)
        Increase in net assets derived from
                                                                 -----------        -----------
          Class A transactions                                     3,965,115          3,825,605
                                                                 -----------        -----------
      Class D
        Proceeds from shares issued                                5,263,922          4,038,530
        Shares issued in lieu of cash distributions                        0                  0
        Cost of shares repurchased                                         0                  0
        Increase in net assets derived from
                                                                 -----------        -----------
          Class D transactions                                     5,263,922          4,038,530
                                                                 -----------        -----------
        Increase in net assets derived from capital
                                                                 -----------        -----------
          share transactions                                       9,229,037          7,864,135
                                                                 -----------        -----------

      Net increase in net assets                                   9,099,729          7,640,129
                                                                 -----------        -----------

Net assets:
      Beginning of period                                              1,021              1,014
                                                                 -----------        -----------
      End of period                                              $ 9,100,750        $ 7,641,143
                                                                 ===========        ===========

Capital share transactions:
      Class A
        Shares issued                                                396,324            515,770
        Shares issued in lieu of cash distributions                       25                  0
        Shares repurchased                                                 0           (142,987)
                                                                 -----------        -----------
          Total Class A transactions                                 396,349            372,783
                                                                 ===========        ===========
      Class D
        Shares issued                                                532,473            412,943
        Shares issued in lieu of cash distributions                        0                  0
        Shares repurchased                                                 0                  0
                                                                 -----------        -----------
          Total Class D transactions                                 532,473            412,943
                                                                 ===========        ===========
</TABLE>

(1) Commenced operations 05/30/96

(2) Commenced operations 05/13/96


The accompanying notes are an integral part of the financial statements.
<PAGE>   162
SEI Asset Allocation Trust

Financial Highlights
For a share outstanding throughout the period ended July 31, 1996 - Unaudited


<TABLE>
<CAPTION>
                                                        Diversified                                             Diversified
                                                        Conservative                 Diversified                  Moderate
                                                           Income                    Conservative                  Growth
                                                            Fund                        Fund                        Fund
                                                  Class A(1)    Class D(2)    Class A(3)    Class D(4)    Class A(5)    Class D(6)
                                                  ----------    ----------    ----------    ----------    ----------    ----------
<S>                                               <C>           <C>           <C>           <C>           <C>           <C>      
Net asset value, beginning of period              $   10.12     $   10.09     $    9.26     $    9.33     $   10.19     $   10.21
                                                  ---------     ---------     ---------     ---------     ---------     ---------
      Income from investment operations:
        Net investment income                          0.01         (0.01)        (0.11)        (0.12)         0.02          0.01
        Net realized and unrealized gains
          (losses) on securities                      (0.08)        (0.05)         0.03         (0.05)        (0.27)        (0.31)
                                                  ---------     ---------     ---------     ---------     ---------     ---------
          Total from investment operations            (0.07)        (0.06)        (0.08)        (0.17)        (0.25)        (0.30)
                                                  ---------     ---------     ---------     ---------     ---------     ---------

      Less distributions:
        Distributions from net investment income      (0.01)        (0.01)         0.00          0.00          0.00          0.00
                                                  ---------     ---------     ---------     ---------     ---------     ---------

Net asset value, end of period                    $   10.04     $   10.02     $    9.18     $    9.16     $    9.94     $    9.91
                                                  =========     =========     =========     =========     =========     =========

Total return                                          -0.69%**      -0.61%**      -0.85%**      -1.82%**      -2.42%**      -2.94%**

Net assets, end of period (000)                   $   1,165     $     303     $     976     $     279     $   5,300     $   3,687

Ratio of expenses to average net assets                0.12%*        1.12%*        0.12%*        1.12%*        0.12%*        1.12%*
Ratio of expenses to average                                                                                           
  net assets (excluding waivers)                       8.51%*       15.91%*        8.69%*       16.86%*        1.91%*        4.75%*
Ratio of net income to average net assets              4.79%*        3.56%*        3.43%*        1.66%*        2.59%*        0.74%*
Ratio of net income to average                                                                                         
  net assets (excluding waivers)                      -3.60%*      -11.23%*       -5.14%*      -14.08%*        0.80%*       -2.89%*
Portfolio turnover rate                                  21%           21%            2%            2%            2%            2%
</TABLE>
                                                                              
* Annualized.

** Total return has not been annualized. 

(1) commenced operations 06/13/96 

(2) commenced operations 06/21/96 

(3) commenced operations 06/26/96 

(4) commenced operations 07/01/96 

(5) commenced operations 06/10/96

(6) commenced operations 05/30/96

The accompanying notes are an integral part of the financial statements.
<PAGE>   163
SEI Asset Allocation Trust

Financial Highlights
For a share outstanding throughout the period ended July 31, 1996 - Unaudited



<TABLE>
<CAPTION>
                                                             Diversified                    Diversified
                                                            Global Growth                    U.S. Stock
                                                                Fund                            Fund
                                                     Class A(1)      Class D(2)      Class A(3)      Class D(4)
                                                     ----------      ----------      ----------      ----------
<S>                                                  <C>             <C>             <C>             <C>      
Net asset value, beginning of period                 $   10.19       $   10.24       $   10.27       $   10.36
                                                     ---------       ---------       ---------       ---------
      Income from investment operations:
        Net investment income                             0.01            0.00            0.03            0.01
        Net realized and unrealized
          losses on securities                           (0.39)          (0.45)          (0.56)          (0.66)
                                                     ---------       ---------       ---------       ---------
          Total from investment operations               (0.38)          (0.45)          (0.53)          (0.65)
                                                     ---------       ---------       ---------       ---------

      Less distributions:
        Distributions from net investment income          0.00            0.00            0.00            0.00
                                                     ---------       ---------       ---------       ---------

Net asset value, end of period                       $    9.81       $    9.79       $    9.74       $    9.71
                                                     =========       =========       =========       =========

Total return                                             -3.72%**        -4.39%**        -5.16%**        -6.27%**

Net assets, end of period (000)                      $   3,888       $   5,213       $   3,631       $   4,010

Ratio of expenses to average net assets                   0.12%*          1.12%*          0.12%*          1.12%*
Ratio of expenses to average
  net assets (excluding waivers)                          2.89%*          4.19%*          3.49%*          3.03%*
Ratio of net income to average net assets                 2.19%*          0.01%*          1.97%*         -1.03%*
Ratio of net income to average
  net assets (excluding waivers)                         -0.58%*         -3.06%*         -1.40%*         -2.94%*
Portfolio turnover rate                                      0%              0%             33%             33%
</TABLE>

* Annualized.

** Total return has not been annualized.

(1) commenced operations 06/13/96

(2) commenced operations 05/30/96

(3) commenced operations 05/13/96

(4) commenced operations 07/01/96

The accompanying notes are an integral part of the financial statements.
<PAGE>   164
SEI ASSET ALLOCATION TRUST

Notes to Financial Statements
July 31, 1996 - Unaudited

1. Organization:

The Trust is organized as a Massachusetts Business Trust under a Declaration of
Trust dated November 20, 1995 and had no operations through May 12, 1996, other
than those related to organizational matters and the sale of initial shares to
SEI Fund Management (the "Manager"). Each Fund and class of shares commenced
operations upon the purchase of fundshares other than the initial shares
purchased by the Manager. The Trust is registered under the Investment Company
Act of 1940, as amended, as an open-end investment company with five diversified
Funds: Diversified Conservative Income Fund, Diversified Conservative Fund,
Diversified Moderate Growth Fund, Diversified Global Growth Fund (formerly the
Diversified Growth Fund), and Diversified U.S. Stock Fund. Each Fund offers
shareholders the opportunity to invest in certain of the Underlying Portfolios,
which are separately-managed series of the following investment companies: SEI
Institutional Managed Trust, SEI International Trust, SEI Liquid Asset Trust.
The Declaration of Trust permits the Trust to offer separate classes of shares
in each Fund, Class A Shares and Class D Shares. The assets of each Fund are
segregated, and a shareholder's interest is limited to the Fund in which shares
are held. The Fund's prospectus provides a description of each Fund's investment
objectives, policies and strategies.

2. Significant Accounting Policies:

The following is a summary of the significant accounting policies followed by
the Funds.

         Net Asset Value Per Share- The net asset value per share of each Fund
or class of shares is calculated each business day. In general, it is computed
by dividing the assets of each Fund or class of shares less its liabilities, by
the number of outstanding shares of the Fund or class. The assets of each Fund
consist primarily of the Underlying Portfolios, which are valued at their
respective net asset values. The Underlying Portfolios' investments in equity
securities which are traded on a national securities exchange (or reported on
NASDAQ national market system) are stated at the last quoted sales price if
readily available for such equity securities on each business day; other equity
securities traded in the over-the-counter market and listed equity securities
for which no sale price was reported on that date are stated at the last quoted
bid price. Debt obligations with remaining maturities in excess of sixty days
are valued at the most recently quoted bid price. Debt obligations with
remaining maturities of sixty days or less are valued at their amortized cost.

         Federal Income Taxes- It is each Fund's intention to qualify as a
regulated investment company for Federal income tax purposes by complying with
the appropriate provisions of the Internal Revenue Code. Accordingly, no
provision for Federal income taxes is required in the accompanying financial
statements.

         Security Transactions and Related Income- Security transactions are
accounted for on the date the security is purchased or sold (trade date).
Dividend income is recognized on the ex-dividend date. Costs used in determining
realized gains and losses on the sales of investment securities are those of the
specific securities sold.

         Classes- Class specific expenses are borne by that class of shares.
Income, realized and unrealized gains/losses and non class-specific expenses are
allocated to the respective classes on the basis of relative daily net assets.

         Expenses- Expenses that are directly related to one of the Fund's are
charged directly to that Fund. Other operating expenses of the Fund are prorated
to the Funds on the basis of relative net assets.

3. Investment Advisory, Management, Distribution and Shareholder Servicing 
   Agreements:

 Under the Investment Advisory Agreement with the Trust, SEI Financial
Management Corporation ("SFM" or the "Adviser") acts as the investment adviser
to each Fund. For its investment advisory 
<PAGE>   165
SEI ASSET ALLOCATION TRUST

Notes to Financial Statements
July 31, 1996 - Unaudited

services to the Trust, the Adviser is entitled to a fee, which is calculated
daily and paid monthly, at an annual rate of .10% of each Fund's average daily
net assets.

Under the Administration Agreement with the Trust, the Manager provides the
Trust with overall management services, and shareholder servicing. For these
services to the Funds, the Manager is entitled to a fee, which is calculated
daily and paid monthly, at an annual rate of .20% of the average daily net
assets of each Fund. The Manager and the Adviser have agreed to waive their fee
so that the total annual expenses of each fund will not exceed the lower of the
maximum limitations established by certain states or voluntary expense
limitations adopted by the Manager. In the event that the total annual expenses
of the Fund, after reflecting a waiver of all fees by the Manager and the
Adviser exceed the specific limitation, the Manager has agreed to bear such
excess.

SEI Financial Services company (the "Distributor"), a wholly-owned subsidiary of
SEI, serves as each Fund's distributor pursuant to a distribution agreement (the
"Distribution Agreement") with the Trust. The Trustees of the Trust have adopted
a distribution and service plan for the Trust's Class D shares (the "Class D
Plan") pursuant to Rule 12b-1 under the 1940 Act. The Class D Plan provides for
payments to the distributor for distribution-related services at an annual rate
of .75% of each Fund's average daily net assets attributable to Class D Shares.
In addition, each Fund is authorized to pay the Distributor a fee in connection
with the ongoing servicing of shareholder accounts owning such Class D Shares,
calculated and payable monthly, at an annual rate of .25% of the value of the
average daily net assets attributable to Class D Shares of the Fund.

4. Organizational Costs, and Transactions with Affiliates:

Organizational costs have been capitalized by the Fund and are being amortized
over 60 months commencing with operations. In the event any of the initial
shares are redeemed by any holder thereof during the period that the fund is
amortizing its organizational costs, the redemption proceeds payable to the
holder thereof by the Fund will be reduced by the unamortized organizational
costs in the same ratio as the number of initial shares being redeemed bears to
the number of initial shares outstanding at the time of the redemption. These
costs include legal fees of approximately $50,000 for organizational work
performed by a law firm of which an officer and Trustee of the Trust is a
Partner.

Certain officers and/or trustees of the Trust are also officers of the Manager
and Adviser. The Trust pays each unaffiliated Trustee an annual fee for
attendance of quarterly, interim and committee meetings. Compensation of
officers and affiliated Trustees of the Trust is paid by the Manager.

5. Investment Transactions:

The cost of security purchases and the proceeds from the sale of securities
during the period ended July 31, 1996 were as follows:

                      Diversified Conservative Income Fund

<TABLE>
<CAPTION>
                         U.S. Government    
                            Securities               All Other         Total
                               (000)                   (000)           (000)
                         ---------------             ---------        -------
<S>                        <C>                        <C>             <C>   
Purchases....              $ -                        $1,343          $1,343
Sales...........           $ -                        $  163          $  163
</TABLE>
<PAGE>   166
SEI ASSET ALLOCATION TRUST

Notes to Financial Statements
July 31, 1996 - Unaudited

<TABLE>
<CAPTION>

                                    Diversified Conservative Fund

                         U.S. Government
                              Securities             All Other         Total
                                 (000)                 (000)           (000)
                                 -----                 -----           -----
<S>                        <C>                        <C>             <C>   
Purchases....              $ -                        $1,243          $1,243
Sales...........           $ -                        $  692          $  692
</TABLE>

<TABLE>
<CAPTION>
                                    Diversified Moderate Growth Fund

                         U.S. Government
                              Securities             All Other         Total
                                 (000)                 (000)           (000)
                                 -----                 -----           -----
<S>                        <C>                        <C>             <C>   
Purchases....              $ -                        $9,023          $9,023
Sales...........           $ -                        $   74          $   74
</TABLE>


<TABLE>
<CAPTION>
                         Diversified Global Growth Fund

                         U.S. Government
                              Securities             All Other         Total
                                 (000)                 (000)           (000)
                                 -----                 -----           -----
<S>                        <C>                        <C>             <C>   
Purchases....              $ -                        $9,118          $9,118
Sales...........           $ -                        $3,845          $3,845
</TABLE>

<TABLE>
<CAPTION>
                                    Diversified U.S. Stock Fund

                         U.S. Government
                              Securities             All Other         Total
                                 (000)                 (000)           (000)
                                 -----                 -----           -----
<S>                        <C>                        <C>             <C>   
Purchases....              $ -                        $9,022          $9,022
Sales...........           $ -                        $1,267          $1,267
</TABLE>
<PAGE>   167
SEI ASSET ALLOCATION TRUST

Notes to Financial Statements
July 31, 1996 - Unaudited

At July 31, 1996, the total cost of securities and the net realized gains or
losses on securities sold for Federal income tax purposes were not materially
different from amounts reported for financial reporting purposes. The aggregate
gross unrealized appreciation and depreciation on investment securities at July
31, 1996 for each Fund is as follows:

<TABLE>
<CAPTION>
                                                                                       Net
                                          Appreciated              Depreciated      Unrealized
                                          Securities                Securities     Depreciation
                                            (000)                     (000)           (000)
                                            -----                     -----           -----

<S>                                         <C>                      <C>              <C>   
Diversified Conservative Income             $  5                     $  (16)          $ (11)
Diversified Conservative                       8                        (17)             (9)
Diversified Moderate Growth                   52                       (180)           (128)
Diversified Global Growth                     36                       (172)           (136)
Diversified U.S. Stock                        29                       (226)           (197)
</TABLE>

<PAGE>   168
                                    APPENDIX

                      DESCRIPTION OF CORPORATE BOND RATINGS

                           MOODY'S RATING DEFINITIONS

LONG TERM BOND RATINGS

Aaa Bonds which are rated Aaa are judged to be of the best quality. They carry
the smallest degree of investment risk and are generally referred to as "gilt
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 risk appear somewhat larger than the 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 some time in the future.

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

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

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

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

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

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

Moody's bond ratings, where specified, are applied to senior bank obligations
and insurance company senior policyholder and claims obligations with an
original maturity in excess of one year. Obligations relying upon support
mechanisms such as letters-of-credit and bonds of indemnity are excluded unless
explicitly rated.


                                      S-38
<PAGE>   169
Obligations of a branch of a bank are considered to be domiciled in the country
in which the branch is located. Unless noted as an exception, Moody's rating on
a bank's ability to repay senior obligations extends only to branches located in
countries which carry a Moody's sovereign rating. Such branch obligations are
rated at the lower of the bank's rating or Moody's sovereign rating for the bank
deposits for the country in which the branch is located.

When the currency in which an obligation is denominated is not the same as the
currency of the country in which the obligation is domiciled, Moody's ratings do
not incorporate an opinion as to whether payment of the obligation will be
affected by the actions of the government controlling the currency of
denomination. In addition, risk associated with bilateral conflicts between an
investor's home country and either the issuer's home country or the country
where an issuer branch is located are not incorporated into Moody's ratings.

Moody's makes no representation that rated bank obligations or insurance company
obligations are exempt from registration under the U.S. Securities Act of 1933
or issued in conformity with any other applicable law or regulation. Nor does
Moody's represent that any specific bank or insurance company obligation is
legally enforceable or is a valid senior obligation of a rated issuer.

Moody's ratings are opinions, not recommendations to buy or sell, and their
accuracy is not guaranteed. A rating should be weighed solely as one factor in
an investment decision and you should make your own study and evaluation of any
issuer whose securities or debt obligations you consider buying or selling.

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

                      STANDARD & POOR'S RATING DEFINITIONS

      A Standard & Poor's corporate or municipal debt rating is a current
assessment of the creditworthiness of an obligor with respect to a specific
obligation. This assessment may take into consideration obligors such as
guarantors, insurers, or lessees.

      The debt rating is not a recommendation to purchase, sell, or hold a
security, as it does not comment on market price or suitability for a particular
investor.

      The ratings are based, in varying degrees, on the following
considerations:

      (1) Likelihood of default. The rating assesses the obligor's capacity and
willingness as to timely payment of interest and repayment of principal in
accordance with the terms of the obligation.

      (2)  The obligation's nature and provisions.

      (3) Protection afforded to, and relative position of, the obligation in
the event of bankruptcy, reorganization, or other arrangement under bankruptcy
laws and other laws affecting creditors' rights.

      Likelihood of default is indicated by an issuer's senior debt rating. If
senior debt is not rated, an implied senior debt rating is determined.
Subordinated debt usually is rated lower than senior debt to better reflect
relative position of the obligation in bankruptcy. Unsecured debt, where
significant secured debt exists, is treated similarly to subordinated debt.


                                      S-39
<PAGE>   170
LONG-TERM RATINGS DEFINITIONS

INVESTMENT GRADE

AAA   Debt rated 'AAA' has the highest rating assigned by S&P. Capacity to pay
      interest and repay principal is extremely strong.

AA    Debt rated 'AA' has a very strong capacity to pay interest and repay
      principal and differs from the highest rated debt only in small degree.

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

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

SPECULATIVE GRADE

      Debt rated 'BB', 'B', 'CCC', 'CC', and 'C' is regarded as having
predominantly speculative characteristics with respect to capacity to pay
interest and repay principal. 'BB' indicates the least degree of speculation and
'C' the highest degree of speculation. While such debt will likely have some
quality and protective characteristics, these are outweighed by large
uncertainties or major risk exposures to adverse conditions.

BB    Debt rated 'BB' has less near-term vulnerability to default than other
      speculative grade debt. However, it faces major ongoing uncertainties or
      exposure to adverse business, financial, or economic conditions that could
      lead to inadequate capacity to meet timely interest and principal
      payments. The 'BB' rating category is also used for debt subordinated to
      senior debt that is assigned an actual or implied 'BBB-' rating.

B     Debt rate 'B' has greater vulnerability to default but presently has the
      capacity to meet interest payments and principal repayments. Adverse
      business, financial, or economic conditions would likely impair capacity
      or willingness to pay interest and repay principal. The 'B' rating
      category also is used for debt subordinated to senior debt that is
      assigned an actual or implied 'BB' or 'BB-' rating.

CCC   Debt rated 'CCC' has a current identifiable vulnerability to default, and
      is dependent on favorable business, financial, and economic conditions to
      meet timely payment of interest and repayment of principal. In the event
      of adverse business, financial, or economic conditions, it is not likely
      to have the capacity to pay interest and repay principal. The 'CCC' rating
      category also is used for debt subordinated to senior debt that is
      assigned an actual or implied 'B' or 'B-' rating.

CC    The rating 'CC' is typically applied to debt subordinated to senior debt
      which is assigned an actual or implied 'CCC' rating.

C     The rating 'C' is typically applied to debt subordinated to senior debt
      which is assigned an actual or implied 'CCC-' debt rating. The 'C' rating
      may be used to cover a situation where a bankruptcy petition has been
      filed, but debt service payments are continued.


                                      S-40
<PAGE>   171
CI    Debt rated 'CI' is reserved for income bonds on which no interest is being
      paid.

D     Debt is rated 'D' when the issue is in payment default, or the obligor has
      filed for bankruptcy. The 'D' rating is used when interest or principal
      payments are not made on the date due, even if the applicable grace period
      has not expired, unless S&P believes that such payments will be made
      during such grace period.

      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.

C     The letter 'c' indicates that the holder's option to tender the security
      for purchase may be canceled under certain prestated conditions enumerated
      in the tender option documents.

P     The letter 'p' indicates that the rating is provisional. A provisional
      rating assumes the successful completion of the project financed by the
      debt being rated and indicates that payment of debt service requirements
      is largely or entirely dependent upon the successful timely completion of
      the project. This rating, however, while addressing credit quality
      subsequent to completion of the project, makes no comment on the
      likelihood of, or the risk of default upon failure of such completion. The
      investor should exercise his own judgement with respect to such likelihood
      and risk.

L     The letter 'L' indicates that the rating pertains to the principal amount
      of those bonds to the extent that the underlying deposit collateral is
      federally insured, and interest is adequately collateralized. In the case
      of certificates of deposit, the letter 'L' indicates that the deposit,
      combined with other deposits being held in the same right and capacity,
      will be honored for principal and pre-default interest up to federal
      insurance limits within 30 days after closing of the insured institution
      or, in the event that the deposit is assumed by a successor insured
      institution, upon maturity.

      *Continuance of the rating is contingent upon S&P's receipt of an executed
      copy of the escrow agreement or closing documentation confirming
      investments and cash flows.

N.R.  Not rated.

DEBT OBLIGATIONS OF ISSUERS OUTSIDE THE UNITED STATES AND ITS TERRITORIES are
rated on the same basis as domestic corporate and municipal issues. The ratings
measure the creditworthiness of the obligor but do not take into account
currency exchange and related uncertainties.

      If an issuer's actual or implied senior debt rating is 'AAA', its
subordinated or junior debt is rated 'AAA' or 'AA+'. If an issuer's actual or
implied senior debt rating is lower than 'AAA' but higher than 'BB+', its junior
debt is typically rated one designation lower than the senior debt rating. For
example, if the senior debt rating is 'A', subordinated debt normally would be
rated 'A-'. If an issuer's actual or implied senior debt rating is 'BB+' or
lower, its subordinated debt is typically rated two designations lower than the
senior debt rating.

INVESTMENT AND SPECULATIVE GRADES

      The term "investment grade" was originally used by various regulatory
bodies to connote obligations eligible for investment by institutions such as
banks, insurance companies, and savings and loan associations. Over time, this
term gained widespread usage throughout the investment community. Issues rated
in the four highest categories, 'AAA', 'AA', 'A', 'BBB', generally are
recognized as being investment grade. Debt rated 'BB' or below generally is
referred


                                      S-41
<PAGE>   172
to as speculative grade. The term "junk bond" is merely a more irreverent
expression for this category of more risky debt. Neither term indicates which
securities S&P deems worthy of investment, as an investor with a particular risk
preference may appropriately invest in securities that are not investment grade.

      Ratings continue as a factor in may regulations, both in the U.S. and
abroad, notably in Japan. For example, the Securities and Exchange Commission
(SEC) requires investment-grade status in order to register debt on Form-3,
which, in turn, is how one offers debt via a Rule 415 shelf registration. The
Federal Reserve Board allows members of the Federal Reserve System to invest in
securities rated in the four highest categories, just as the Federal Home Loan
Bank System permits federally chartered savings and loan associations to invest
in corporate debt with those ratings, and the Department of Labor allows pension
funds to invest in commercial paper rated in one of the three highest
categories. In similar fashion, California regulates investments of
municipalities and county treasurers, Illinois limits collateral acceptable for
public deposits, and Vermont restricts investments of insurers and banks. The
New York and Philadelphia Stock Exchanges fix margin requirements for mortgage
securities depending on their rating, and the securities haircut for commercial
paper, debt securities, and preferred stock that determines net capital
requirements is also a function of the ratings assigned.

SHORT-TERM DEBT RATINGS (may be assigned, for example, to commercial paper,
master demand notes, bank instruments, and letters of credit).

Moody's description of its three highest short-term debt ratings:

      Prime-1    Issuers rated Prime-1 (or supporting institutions) have a
                 superior capacity for repayment of senior short-term promissory
                 obligations. Prime-1 repayment capacity will normally 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 capacity 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. Capitalization 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


                                      S-42
<PAGE>   173
                 protection measurements and may require relatively high
                 financial leverage. Adequate alternate liquidity is maintained.

S&P's description of its three highest short-term debt ratings:

      A-1   This designation indicates that the degree of safety regarding
            timely payment is strong. Those issues determined to have extremely
            strong safety characteristics are denoted with a plus sign (+).

      A-2   Capacity for timely payment on issues with this designation is
            satisfactory. However, the relative degree of safety is not as high
            as for issues designated "A-1."

      A-3   Issues carrying this designation have adequate capacity for timely
            payment. They are, however, more vulnerable to the adverse effects
            of changes in circumstances than obligations carrying the higher
            designations.


                                      S-43
<PAGE>   174
                            PART C: OTHER INFORMATION

Item 24.  Financial Statements and Exhibits:

        (a)    Financial Statements

   
               Part A        Financial Highlights
               Part B        The following unaudited financial statements as of
                             July 31, 1996 are included as part of the Statement
                             of Additional Information.
                                    Schedule of Investments
                                    Statement of Assets & Liabilities
                                    Statement of Operations
                                    Statement of Changes in Net Assets
                                    Financial Highlights
                                    Notes to Financial Statements
                             Audited Financial Statements as of February 16,
                             1996 are included as part of the Statement of
                             Additional Information
                                    Schedule of Investments
                                    Statement of Assets & Liabilities
                                    Statement of Operations
                                    Statement of Changes in Net Assets
                                    Financial Highlights
                                    Notes to Financial Statements
    

        (b)    Additional Exhibits

   
                 1    Agreement and Declaration of Trust of the Registrant,
                      dated October 20, 1995 (incorporated herein by reference
                      to Initial Registration Statement, filed on December 1,
                      1995).

                 2    By-Laws of the Registrant (incorporated herein by
                      reference to Initial Registration Statement, filed on
                      December 1, 1995).

                 5(a) Investment Advisory Agreement between the Registrant and
                      SEI Financial Management Corporation, (incorporated herein
                      by reference to Pre-Effective Amendment No. 1 to
                      Registration Statement filed March 1, 1996).

                 6(a) Distribution Agreement between the Registrant and SEI
                      Financial Services Company, (incorporated herein by
                      reference to Pre-Effective Amendment No. 1 to Registration
                      Statement filed March 1, 1996).

                 8(a) Custodian Agreement between the Registrant and CoreStates
                      Bank, N.A., (incorporated herein by reference to
                      Pre-Effective Amendment No. 1 to Registration Statement
                      filed March 1, 1996).

                 9(a) Administration Agreement between the Registrant and SEI
                      Financial Management Corporation, (incorporated herein by
                      reference to Pre-Effective Amendment No. 1 to Registration
                      Statement filed March 1, 1996).
    


                                       C-1
<PAGE>   175
   
                 9(b) Transfer Agent Agreement between the Registrant and SEI
                      Financial Management Corporation, (incorporated herein by
                      reference to Pre-Effective Amendment No. 1 to Registration
                      Statement filed March 1, 1996).
    

                 10   Opinion and Consent of Counsel, (incorporated herein by
                      reference to Pre-Effective Amendment No. 1 to
                      Registration Statement filed March 1, 1996).

   
                 11   Consent of Independent Accountants is filed herewith.
    

                 16   Performance Calculations, (incorporated herein by
                      reference to Pre-Effective Amendment No. 1 to Registration
                      Statement filed March 1, 1996).

   
                 17   Financial Data Schedules, filed herewith.

                 24   Powers of Attorney for Richard F. Blanchard, F. Wendell
                      Gooch, Frank E. Morris, James M. Storey and Robert A.
                      Nesher (incorporated by reference to Initial Registration
                      Statement, filed on December 1, 1995) and for William M.
                      Doran, (incorporated herein by reference to Pre-Effective
                      Amendment No. 1 to Registration Statement filed March 1,
                      1996).
    

   
    

Item 25.  Persons Controlled by or under Common Control with Registrant:

   
        See the Prospectuses and the Statement of Additional Information
regarding the Registrant's control relationships. The Administrator is a
subsidiary of SEI Corporation, which also controls the distributor of the
Registrant, SEI Financial Services Company, other corporations engaged in
providing various financial and record keeping services, primarily to bank trust
departments, pension plan sponsors, and investment managers.
    

Item 26.  Number of Holders of Securities:

   
<TABLE>
<CAPTION>
                                                   Class A  Class D
                                                   -------  -------
<S>                                                   <C>      <C>
        Diversified Conservative Income Fund          12       12
        Diversified Conservative Fund                 12       12
        Diversified Global Moderate Growth Fund        0        0
        Diversified Moderate Growth Fund              12       13
        Diversified Global Growth Fund                12       15
        Diversified Global Stock Fund                  0        0
        Diversified U.S. Stock Fund                   11       11
</TABLE>
    

Item 27.  Indemnification:

        Article VIII of the Agreement of Declaration of Trust filed as Exhibit 1
to the Registration Statement is incorporated by reference. Insofar as
indemnification for liability arising under the Securities Act of 1933 may be
permitted to directors, officers and controlling persons of the Registrant
pursuant to the Declaration of Trust or otherwise, the Registrant is aware that
in the opinion of the Securities and Exchange Commission, such indemnification
is against public policy as expressed in the Act and, therefore, is
unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the Registrant of expenses incurred or
paid by trustees, directors, officers or controlling persons of the Registrant
in connection with the successful defense of any act, suit or proceeding) is
asserted by such trustees, directors, officers or controlling


                                       C-2
<PAGE>   176
persons in connection with the shares being registered, the Registrant will,
unless in the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the Act and
will be governed by the final adjudication of such issues.

Item 28.  Business and Other Connections of Investment Adviser:

ADVISER

SEI Financial Management Company ("SFM") is the investment adviser for the
Trust. The principal address of SFM is 680 East Swedesford Road, Wayne,
Pennsylvania 19087-1658. SFM is an investment adviser registered under the
Advisers Act.

The list required by this Item 28 of officers and directors of SFM, together
with information as to any other business profession, vocation or employment of
substantial nature engaged in by such officers and directors during the past two
years is incorporated by reference to Schedules A and D of Form ADV filed by SFM
to the Advisers Act (SEC File No. 801-24593).

Item 29.  Principal Underwriters:

(a)     Furnish the name of each investment company (other than the Registrant)
        for which each principal underwriter currently distributing the
        securities of the Registrant also acts as a principal underwriter,
        distributor or investment adviser.

        Registrant's distributor, SEI Financial Services Company ("SFS"), acts
as distributor for:

        SEI Daily Income Trust                         July 15, 1982
        SEI Liquid Asset Trust                         November 29, 1982
        SEI Tax Exempt Trust                           December 3, 1982
        SEI Index Funds                                July 10, 1985
        SEI Institutional Managed Trust                January 22, 1987
        SEI International Trust                        August 30, 1988
        Stepstone Funds                                January 30, 1991
        The Advisors' Inner Circle Fund                November 14, 1991
        The Pillar Funds                               February 28, 1992
        CUFUND                                         May 1, 1992
        STI Classic Funds                              May 29, 1992
        CoreFunds, Inc.                                October 30, 1992
        First American Funds, Inc.                     November 1, 1992
        First American Investment Funds, Inc.          November 1, 1992
        The Arbor Fund                                 January 28, 1993
        1784 Funds                                     June 1, 1993
        The PBHG Funds, Inc.                           July 16, 1993
        Marquis Funds(R)                               August 17, 1993
        Morgan Grenfell Investment Trust               January 3, 1994


                                       C-3
<PAGE>   177
        Inventor Funds, Inc.                           August 1, 1994
        The Achievement Funds Trust                    December 27, 1994
        Bishop Street Funds                            January 27, 1995
        CrestFunds, Inc.                               March 1, 1995
        STI Classic Variable Trust                     August 18, 1995
   
        ARK Funds                                      November 1, 1995
    
        Monitor Funds                                  January 11, 1996
        FMB Funds, Inc.                                March 1, 1996
   
        Turner Funds                                   April 30, 1996
        SEI Institutional Investments Trust            June 14, 1996
    

        SFS provides numerous financial services to investment managers, pension
        plan sponsors, and bank trust departments. These services include
        portfolio evaluation, performance measurement and consulting services
        ("Funds Evaluation") and automated execution, clearing and settlement of
        securities transactions ("MarketLink").

(b)     Furnish the Information required by the following table with respect to
        each director, officer or partner of each principal underwriter named in
        the answer to Item 21 of Part B. Unless otherwise noted, the business
        address of each director or officer is 680 East Swedesford Road, Wayne,
        Pennsylvania 19087-1658.

   
<TABLE>
<CAPTION>
                         Position and Office                                Positions and Offices
Name                     with Underwriter                                   with Registrant
- ----                     -------------------                                ---------------------
<S>                      <C>                                                <C>
Alfred P. West, Jr.      Director, Chairman & Chief Executive Officer               --
Henry H. Greer           Director, President & Chief Operating Officer              --
Carmen V. Romeo          Director, Executive Vice President & Treasurer             --
Gilbert L. Beebower      Executive Vice President                                   --
Richard B. Lieb          Executive Vice President, President -                      --
                         Investment Services Division                      
Leo J. Dolan, Jr.        Senior Vice President                                      --
Carl A. Guarino          Senior Vice President                                      --
Jerome Hickey            Senior Vice President                                      --
Steven Kramer            Senior Vice President                                      --
David G. Lee             Senior Vice President                              President and Chief
                                                                             Executive Officer
William Madden           Senior Vice President                                      --
A. Keith McDowell        Senior Vice President                                      --
Dennis J. McGonigle      Senior Vice President                                      --
Hartland J. McKeown      Senior Vice President                                      --
Barbara J. Moore         Senior Vice President                                      --
James V. Morris          Senior Vice President                                      --
Steven Onofrio           Senior Vice President                                      --
Kevin P. Robins          Senior Vice President, General Counsel &           Vice President and
                           Secretary                                        Assistant Secretary
Robert Wagner            Senior Vice President                                      --
Patrick K. Walsh         Senior Vice President                                      --
Kenneth Zimmer           Senior Vice President                                      --
Robert Aller             Vice President                                             --
</TABLE>
                                                                               


                                       C-4
<PAGE>   178
   
<TABLE>
<CAPTION>
                         Position and Office                                Positions and Offices
Name                     with Underwriter                                   with Registrant
- ----                     -------------------                                ---------------------
<S>                      <C>                                                <C>
Marc H. Cahn             Vice President & Secretary                         Vice President and
                                                                            Assistant Secretary
Gordon W. Carpenter      Vice President                                             --
Todd Cipperman           Vice President & Assistant Secretary               Vice President and
                                                                            Assistant Secretary
Robert Crudup            Vice President & Managing Director                         --
Ed Daly                  Vice President                                             --
Jeff Drennen             Vice President                                             --
Mick Duncan              Vice President & Team Leader                               --
Vic Galef                Vice President & Managing Director                         --
Kathy Heilig             Vice President                                             --
Larry Hutchinson         Vice President                                             --
Michael Kantor           Vice President                                             --
Samuel King              Vice President                                             --
Kim Kirk                 Vice President & Managing Director                         --
Donald H. Korytowski     Vice President                                             --
John Krzeminski          Vice President & Managing Director                         --
Robert S. Ludwig         Vice President & Team Leader                               --
Vicki Malloy             Vice President & Team Leader                               --
Jack May                 Vice President                                             --
Carolyn McLaurin         Vice President & Managing Director                         --
W. Kelso Morrill         Vice President                                             --
Barbara A. Nugent        Vice President & Assistant Secretary               Vice President and
                                                                            Assistant Secretary
Sandra K. Orlow          Vice President & Assistant Secretary               Vice President and
                                                                            Assistant Secretary
Donald Pepin             Vice President & Managing Director                         --
Larry Pokora             Vice President                                             --
Kim Rainey               Vice President                                             --
Paul Sachs               Vice President                                             --
Mark Samuels             Vice President & Managing Director                         --
Steve Smith              Vice President                                             --
Daniel Spaventa          Vice President                                             --
Kathryn L. Stanton       Vice President & Assistant Secretary               Vice President and
                                                                            Assistant Secretary
Wayne M. Withrow         Vice President & Managing Director                         --
William Zawaski          Vice President                                             --
James Dougherty          Director of Brokerage Services                             --
</TABLE>
    
                                                                           
Item 30.  Location of Accounts and Records:                                
                                                                       
        Books or other documents required to be maintained by Section 31(a) of
        the Investment Company Act of 1940, and the rules promulgated
        thereunder, are maintained as follows:


                                       C-5
<PAGE>   179
        (a) With respect to Rules 31a-1(a); 31a-1(b)(1); (2)(a) and (b); (3);
        (6); (8); (12); and 31a-1(d), the required books and records will be
        maintained at the offices of Registrant's Custodian:

               CoreStates Bank, N.A.
               Broad & Chestnut Streets
               P.O. Box 7618
               Philadelphia, Pennsylvania  19101

        (b)/(c) With respect to Rules 31a-1(a); 31a-1(b)(1),(4); (2)(C) and (D);
        (4); (5); (6); (8); (9); (10); (11); and 31a-1(f), the required books
        and records are maintained at the offices of Registrant's Administrator:
   
               SEI Fund Management
               680 East Swedesford Road
               Wayne, Pennsylvania 19087-1658
    
        (c) With respect to Rules 31a-1(b)(5), (6), (9) and (10) and 31a-1(f),
        the required books and records are maintained at the principal offices
        of the Registrant's Adviser:

               SEI Financial Management Corporation
               680 East Swedesford Road
               Wayne, Pennsylvania  19087-1658

Item 31.  Management Services:  None.

Item 32.  Undertakings:

         Registrant hereby undertakes that whenever shareholders meeting the
requirements of Section 16(c) of the Investment Company Act of 1940 inform the
Board of Directors of their desire to communicate with Shareholders of the
Corporation, the Directors will inform such Shareholders as to the approximate
number of Shareholders of record and the approximate costs of mailing or afford
said Shareholders access to a list of Shareholders.

         Registrant hereby undertakes to call a meeting of Shareholders for the
purpose of voting upon the question of removal of a Director(s) when requested
in writing to do so by the holders of at least 10% of Registrant's outstanding
shares and in connection with such meetings to comply with the provisions of
Section 16(c) of the Investment Company Act of 1940.

         Registrant hereby undertakes to file a post-effective amendment,
including financial statements which need not be audited, within 4-6 months from
the later of the commencement of operations of the Diversified Global Moderate
Growth Fund and the Diversified Global Stock Fund of the Registrant or the
effective date of Post-Effective Amendment No. 1 to the Registrant's 1933 Act
Registration Statement.


                                       C-6
<PAGE>   180
                                   SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment
Company Act of 1940, as amended, the Registrant has duly caused this
Post-Effective Amendment No. 1 to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Wayne, Commonwealth of Pennsylvania on
the 16th day of September, 1996.

                                   SEI ASSET ALLOCATION TRUST

                                   By: /s/ David G. Lee
                                      ------------------------------------
                                        David G. Lee
                                        President, Chief Executive Officer

Pursuant to the requirements of the Securities Act of 1933, this Registration
Statement has been signed below by the following persons in the capacity on the
dates indicated.
   

               *             Trustee                      September 16, 1996
_________________________
William M. Doran

               *             Trustee                      September 16, 1996
_________________________
F. Wendell Gooch

               *             Trustee                      September 16, 1996
_________________________
Frank E. Morris

               *             Trustee                      September 16, 1996
_________________________
James M. Storey

               *             Trustee                      September 16, 1996
_________________________
Robert A. Nesher


/s/ David G. Lee             President, Chief Executive   September 16, 1996
- -------------------------      Officer
David G. Lee

/s/ Stephen G. Meyer         Controller and Chief         September 16, 1996
- -------------------------      Financial Officer
Stephen G. Meyer
    

* By: /s/ David G. Lee
     --------------------
        David G. Lee
        Attorney-in-Fact


                                      C-7
<PAGE>   181
                                  EXHIBIT INDEX

Name                                                                 Exhibit
- ----                                                                 -------
   
Agreement and Declaration of Trust of the Registrant,                Ex-99.B1 
dated October 20, 1995 (incorporated by reference to Initial
Registration Statement, filed on December 1, 1995).

By-Laws of the Registrant (incorporated by reference to              Ex-99.B2 
Initial Registration Statement, filed on December 1, 1995).

Investment Advisory Agreement between the Registrant                 Ex-99.B5(a)
and SEI Financial Management Corporation, (incorporated herein by
reference to Pre-Effective Amendment No. 1 to Registration
Statement filed March 1, 1996).

Distribution Agreement between Registrant and SEI                    Ex-99.B6
Financial Services Company, (incorporated herein by reference to
Pre-Effective Amendment No. 1 to Registration Statement filed
March 1, 1996).
    

Custodian Agreement between the Registrant and CoreStates            Ex-99.B8 
Bank, N.A., (incorporated herein by reference to
Pre-Effective Amendment No. 1 to Registration Statement filed
March 1, 1996).

   
Administration Agreement between the Registrant and                  Ex-99.B9(a)
SEI Financial Management Corporation, (incorporated herein by
reference to Pre-Effective Amendment No. 1 to Registration
Statement filed March 1, 1996).

Transfer Agent Agreement between the Registrant and                  Ex-99.B9(b)
SEI Financial Management Corporation, (incorporated herein by
reference to Pre-Effective Amendment No. 1 to Registration
Statement filed March 1, 1996).
    

Opinion and Consent of Counsel, (incorporated herein                 Ex-99.B10
by reference to Pre-Effective Amendment No. 1 to Registration
Statement filed March 1, 1996).

   
Consent of Independent Public Accountants, is filed herewith.        Ex-99.B11
    

Distribution Plan, Class D shares, (incorporated herein              Ex-99.B15
by reference to Pre-Effective Amendment No. 1 to Registration
Statement filed March 1, 1996).

Performance Calculations, (incorporated herein by reference          Ex-99.B16
to Pre-Effective Amendment No. 1 to Registration
Statement filed March 1, 1996).

18f-3 Plan, (incorporated herein by reference to Pre-Effective       Ex-99.B18
Amendment No. 1 to Registration Statement filed March 1, 1996).

Powers of Attorney for Richard F. Blanchard, F. Wendell              Ex-99.B24


                                       C-8
<PAGE>   182
   
Gooch, Frank E. Morris, James M. Storey and Robert A.
Nesher (incorporated by reference to Initial Registration Statement,
filed on December 1, 1995), and for William M. Doran,
(incorporated herein by reference to Pre-Effective
Amendment No. 1 to Registration Statement filed March 1, 1996).

Financial Data Schedules, filed herewith.                            Ex-27
Diversified Conservative Income Fund, Class A                        Ex-27.1A
Diversified Conservative Income Fund, Class D                        Ex-27.1D
Diversified Conservative Fund, Class A                               Ex-27.2A
Diversified Conservative Fund, Class D                               Ex-27.2D
Diversified Moderate Growth Fund, Class A                            Ex-27.3A
Diversified Moderate Growth Fund, Class D                            Ex-27.3D
Diversified Global Growth Fund, Class A                              Ex-27.4A
Diversified Global Growth Fund, Class D                              Ex-27.4D
Diversified U.S. Stock Fund, Class A                                 Ex-27.5A
Diversified U.S. Stock Fund, Class D                                 Ex-27.5D
    


                                       C-9

<PAGE>   1
                       CONSENT OF INDEPENDENT ACCOUNTANTS


We hereby consent to the incorporation by reference in the Prospectuses and 
Statement of Additional Information constituting parts of this Post-Effective
Amendment No. 1 to the registration statement on Form N-1A (the "Registration
Statement") of our report dated February 21, 1996, relating to the statement of
assets and liabilities of SEI Asset Allocation Trust, which is also
incorporated by reference into the Registration Statement. We also consent to
the reference to us under the heading of "General Information" in the
Prospectuses and under the heading "Experts" in the Statement of Additional
Information.


/s/ Price Waterhouse LLP

PRICE WATERHOUSE LLP

Philadelphia, PA
September 12, 1996



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<EXPENSES-NET>                                   (375)
<NET-INVESTMENT-INCOME>                           6650
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<OVERDISTRIB-NII-PRIOR>                              0
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<GROSS-ADVISORY-FEES>                              142
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<PER-SHARE-NII>                                    .01
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<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        27926
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<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       1472076
<SHARES-COMMON-STOCK>                            30254
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                         5901
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            573
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       (10872)
<NET-ASSETS>                                   1467678
<DIVIDEND-INCOME>                                 7025
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   (375)
<NET-INVESTMENT-INCOME>                           6650
<REALIZED-GAINS-CURRENT>                           574
<APPREC-INCREASE-CURRENT>                      (11575)
<NET-CHANGE-FROM-OPS>                           (4351)
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<DISTRIBUTIONS-OF-INCOME>                         (72)
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<INVESTMENTS-AT-VALUE>                         1232651
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<OTHER-ITEMS-LIABILITIES>                        28210
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<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       1260803
<SHARES-COMMON-STOCK>                           106401
<SHARES-COMMON-PRIOR>                                0
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<OVERDISTRIBUTION-GAINS>                             0
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<DIVIDEND-INCOME>                                 3487
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   (268)
<NET-INVESTMENT-INCOME>                           3219
<REALIZED-GAINS-CURRENT>                          (39)
<APPREC-INCREASE-CURRENT>                       (8966)
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<PAID-IN-CAPITAL-COMMON>                       1260803
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<INVESTMENTS-AT-VALUE>                         8908199
<RECEIVABLES>                                    62635
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<OTHER-ITEMS-ASSETS>                             28020
<TOTAL-ASSETS>                                 9001564
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        15023
<TOTAL-LIABILITIES>                              15023
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       9102047
<SHARES-COMMON-STOCK>                           533155
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                        15531
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         (3210)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      (127827)
<NET-ASSETS>                                   8986541
<DIVIDEND-INCOME>                                20279
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  (2946)
<NET-INVESTMENT-INCOME>                          17333
<REALIZED-GAINS-CURRENT>                        (3210)
<APPREC-INCREASE-CURRENT>                     (127845)
<NET-CHANGE-FROM-OPS>                         (113722)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       (1803)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         542464
<NUMBER-OF-SHARES-REDEEMED>                     (9532)
<SHARES-REINVESTED>                                173
<NET-CHANGE-IN-ASSETS>                         5408261
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              799
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  21858
<AVERAGE-NET-ASSETS>                           4292246
<PER-SHARE-NAV-BEGIN>                            10.19
<PER-SHARE-NII>                                    .02
<PER-SHARE-GAIN-APPREC>                          (.27)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
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<EXPENSE-RATIO>                                    .12
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

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<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION TRUST
<SERIES>
   <NUMBER> 031
   <NAME> DIVERSIFIED MODERATE GROWTH FUND CLASS D
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<S>                             <C>
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<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION TRUST
<SERIES>
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   <NAME> DIVERSIFIED GLOBAL GROWTH FUND CLASS A
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<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION TRUST
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   <NAME> DIVERSIFIED GLOBAL GROWTH FUND CLASS D
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<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION TRUST
<SERIES>
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   <NAME> DIVERSIFIED U.S. STOCK FUND CLASS A
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<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION TRUST
<SERIES>
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   <NAME> DIVERSIFIED U.S. STOCK FUND CLASS D
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</TABLE>


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