SEI ASSET ALLOCATION TRUST
497, 1996-04-08
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<PAGE>
 
SEI ASSET ALLOCATION TRUST APRIL 1, 1996
- --------------------------------------------------------------------------------
 
DIVERSIFIED CONSERVATIVE INCOME FUND
DIVERSIFIED CONSERVATIVE FUND
DIVERSIFIED MODERATE GROWTH FUND
DIVERSIFIED GROWTH 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 April 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 five separate diversified investment
portfolios (each a "Fund" and, together, the "Funds"): Diversified Conservative
Income Fund, Diversified Conservative Fund, Diversified Moderate Growth Fund,
Diversified Growth 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 retirement accounts. Class D
Shares are offered to tax-advantaged and other 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 both Class
A Shares and 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.
<PAGE>
 
FUND EXPENSES (CLASS A SHARES) _________________________________________________

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"). In addition to
these Direct Expenses, Class A Shares of the Funds will indirectly bear their
pro rata share of the expenses of the Underlying Portfolios ("Indirect
Expenses"). See "Expense Ratios of the Underlying Portfolios."
 
SHAREHOLDER TRANSACTION EXPENSES (as a percentage of offering price)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                       DIVERSIFIED               DIVERSIFIED
                                                       CONSERVATIVE DIVERSIFIED   MODERATE   DIVERSIFIED DIVERSIFIED
                                                          INCOME    CONSERVATIVE   GROWTH      GROWTH    U.S. STOCK
                                                           FUND         FUND        FUND        FUND        FUND
                                                       ------------ ------------ ----------- ----------- -----------
<S>                                                    <C>          <C>          <C>         <C>         <C> 
Maximum Sales Charge Imposed on Purchase                    None         None        None        None        None
Maximum Sales Charge Imposed on Reinvested Dividends        None         None        None        None        None
Maximum Contingent Deferred Sales Charge                    None         None        None        None        None
Wire Redemption Fees                                        None         None        None        None        None
<CAPTION>                                             
- --------------------------------------------------------------------------------------------------------------------
ANNUAL OPERATING EXPENSES (DIRECT EXPENSES)           
- --------------------------------------------------------------------------------------------------------------------
<S>                                                    <C>          <C>          <C>         <C>         <C> 
Management/Advisory Fees (after waivers) (1)                .00%         .00%        .00%        .00%        .00%
12b-1 Fees                                                  None         None        None        None        None
Total Other Expenses (after expense                   
reimbursements) (2) (3)                                     .12%         .12%        .12%        .12%        .12%
- --------------------------------------------------------------------------------------------------------------------
Total Operating Expenses (after waivers and           
expense reimbursement) (3)                                  .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%.
 
EXPENSE RANGES (INCLUDING INDIRECT EXPENSES)
- --------------------------------------------------------------------------------
Based on the expense ratios of the Underlying Portfolios plus those of each
Fund, the range of average weighted combined operating expenses for Class A
shares of the Funds are expected to be as follows:
<TABLE> 
<CAPTION>
                                                                     RANGE OF
                                                                     COMBINED
                                                                     EXPENSES+
                                                                   -------------
<S>                                                                <C>
Diversified Conservative Income Fund                               .67% to  .89%
Diversified Conservative Fund                                      .75% to 1.00%
Diversified Moderate Growth Fund                                   .80% to 1.07%
Diversified Growth Fund                                            .88% to 1.33%
Diversified U.S. Stock Fund                                        .86% to 1.06%
- --------------------------------------------------------------------------------
</TABLE>
+ A range is provided since the average assets of each Fund invested in each of
  the Underlying Portfolios may fluctuate.
 
EXAMPLE
- --------------------------------------------------------------------------------
Using the midpoint of the ranges set forth above, an investor in a Fund would
pay the following combined expenses on a $1,000 investment assuming: (1) a 5%
annual return, and (2) redemption at the end of each time period:
<TABLE> 
<CAPTION>
                                                                    1 YR. 3 YRS.
                                                                    ----- ------
<S>                                                                 <C>   <C>
Diversified Conservative Income Fund                                 $ 8   $25
Diversified Conservative Fund                                        $ 9   $28
Diversified Moderate Growth Fund                                     $10   $30
Diversified Growth Fund                                              $11   $35
Diversified U.S. Stock Fund                                          $10   $31
</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>
 
FUND EXPENSES (CLASS D SHARES) _________________________________________________

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"). In addition to
these Direct Expenses, Class D Shares of the Funds will indirectly bear their
pro rata share of the expenses of the Underlying Portfolios ("Indirect
Expenses"). See "Expense Ratios of the Underlying Portfolios."
SHAREHOLDER TRANSACTION EXPENSES (as a percentage of offering price)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                       DIVERSIFIED               DIVERSIFIED
                                                       CONSERVATIVE DIVERSIFIED   MODERATE   DIVERSIFIED DIVERSIFIED
                                                          INCOME    CONSERVATIVE   GROWTH      GROWTH    U.S. STOCK
                                                           FUND         FUND        FUND        FUND        FUND
                                                       ------------ ------------ ----------- ----------- -----------
<S>                                                    <C>          <C>          <C>         <C>         <C> 
Maximum Sales Charge Imposed on Purchase                    None         None        None        None        None
Maximum Sales Charge Imposed on Reinvested Dividends        None         None        None        None        None
Maximum Contingent Deferred Sales Charge                    None         None        None        None        None
Wire Redemption Fees                                      $10.00       $10.00      $10.00      $10.00      $10.00
Exchange Fees                                               None         None        None        None        None
<CAPTION> 
- --------------------------------------------------------------------------------------------------------------------
ANNUAL OPERATING EXPENSES (DIRECT EXPENSES)
- --------------------------------------------------------------------------------------------------------------------
<S>                                                    <C>          <C>          <C>         <C>         <C> 
Management/Advisory Fees (after waivers) (1)                .00%         .00%        .00%        .00%        .00%
12b-1 Fees                                                  .75%         .75%        .75%        .75%        .75%
Total other Expenses (after expense 
 reimbursements) (2)(3)                                     .37%         .37%        .37%        .37%        .37%
  Shareholder Service Fees                           .25%         .25%        .25%        .25%        .25%
- --------------------------------------------------------------------------------------------------------------------
Total Operating Expenses (after waivers and expense 
reimbursements) (3)                                        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%.

EXPENSE RANGES (INCLUDING INDIRECT EXPENSES)
- --------------------------------------------------------------------------------
Based on the Expense Ratios of the Underlying Portfolios plus those of each
Fund, the range of average weighted combined operating expenses for Class D
Shares of the Funds are expected to be as follows:
<TABLE>
<CAPTION>
                                                                     RANGE OF
                                                                     COMBINED
                                                                    EXPENSES+
                                                                  --------------
<S>                                                               <C>
Diversified Conservative Income Fund                              1.67% to 1.89%
Diversified Conservative Fund                                     1.75% to 2.00%
Diversified Moderate Growth Fund                                  1.80% to 2.07%
Diversified Growth Fund                                           1.88% to 2.33%
Diversified U.S. Stock Fund                                       1.86% to 2.06%
</TABLE>
- --------------------------------------------------------------------------------
+ A range is provided since the average assets of each Fund invested in each of
  the Underlying Portfolios may fluctuate.

EXAMPLE
- --------------------------------------------------------------------------------
Using the midpoint of the ranges set forth above, an investor in a Fund would
pay the following combined expenses on a $1,000 investment assuming: (1) a 5%
annual return, and (2) redemption at the end of each time period:
<TABLE>
<CAPTION>
                                                                    1 YR. 3 YRS.
                                                                    ----- ------
<S>                                                                 <C>   <C>
Diversified Conservative Income Fund                                 $18   $56
Diversified Conservative Fund                                        $19   $59
Diversified Moderate Growth Fund                                     $20   $61
Diversified Growth Fund                                              $21   $66
Diversified U.S. Stock Fund                                          $20   $62
</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 Rules of Fair
Practice of the National Association of Securities Dealers ("NASD").
 
                                                                    3
<PAGE>
 
INDIRECT EXPENSES ______________________________________________________________

Class A and Class D Shares of the Funds will indirectly bear their pro rata
share of fees and expenses incurred by the Underlying Portfolios, including
shareholder servicing expenses, and the investment returns of each Class of
Shares of the Funds will be net of the expenses of the Underlying Portfolios.
The charts set forth below provide the expense ratios for each of the
Underlying Portfolios in which the Funds will invest (based on information as
of December 31, 1995).
- --------------------------------------------------------------------------------
DIVERSIFIED CONSERVATIVE INCOME FUND
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION>
UNDERLYING PORTFOLIOS                                     UNDERLYING PORTFOLIOS'
ELIGIBLE FOR PURCHASE                                        EXPENSE RATIOS*
<S>                                                       <C>
SIMT Large Cap Growth Portfolio                                     .85%
SIMT Large Cap Value Portfolio                                      .82%
SIMT Small Cap Growth Portfolio                                    1.10%
SIMT Small Cap Value Portfolio                                     1.10%
SIMT Core Fixed Income Portfolio                                    .55%
SLAT Prime Obligation Portfolio                                     .44%
<CAPTION> 
- --------------------------------------------------------------------------------
DIVERSIFIED CONSERVATIVE FUND
- --------------------------------------------------------------------------------
UNDERLYING PORTFOLIOS                                     UNDERLYING PORTFOLIOS'
ELIGIBLE FOR PURCHASE                                        EXPENSE RATIOS*
<S>                                                       <C>
SIMT Large Cap Growth Portfolio                                     .85%
SIMT Large Cap Value Portfolio                                      .82%
SIMT Small Cap Growth Portfolio                                    1.10%
SIMT Small Cap Value Portfolio                                     1.10%
SIT International Equity Portfolio                                 1.25%
SIMT Core Fixed Income Portfolio                                    .55%
SIT International Fixed Income Portfolio                           1.00%
SLAT Prime Obligation Portfolio                                     .44%
<CAPTION> 
- --------------------------------------------------------------------------------
DIVERSIFIED MODERATE GROWTH FUND
- --------------------------------------------------------------------------------
UNDERLYING PORTFOLIOS                                     UNDERLYING PORTFOLIOS'
ELIGIBLE FOR PURCHASE                                        EXPENSE RATIOS*
<S>                                                       <C>
SIMT Large Cap Growth Portfolio                                     .85%
SIMT Large Cap Value Portfolio                                      .82%
SIMT Small Cap Growth Portfolio                                    1.10%
SIMT Small Cap Value Portfolio                                     1.10%
SIT International Equity Portfolio                                 1.25%
SIMT Core Fixed Income Portfolio                                    .55%
SIT International Fixed Income Portfolio                           1.00%
SLAT Prime Obligation Portfolio                                     .44%
</TABLE>
 
                                                                    4
<PAGE>
 
- --------------------------------------------------------------------------------
DIVERSIFIED GROWTH FUND
- --------------------------------------------------------------------------------
<TABLE>                                  
<CAPTION>                                
UNDERLYING PORTFOLIOS                                     UNDERLYING PORTFOLIOS'
ELIGIBLE FOR PURCHASE                                        EXPENSE RATIOS*
<S>                                                       <C>
SIMT Large Cap Growth Portfolio                                     .85%
SIMT Large Cap Value Portfolio                                      .82%
SIMT Small Cap Growth Portfolio                                    1.10%
SIMT Small Cap Value Portfolio                                     1.10%
SIT International Equity Portfolio                                 1.25%
SIT Emerging Markets Equity Portfolio                              1.95%
SIMT Core Fixed Income Portfolio                                    .55%
SIMT High Yield Bond Portfolio                                      .85%
SIT International Fixed Income Portfolio                           1.00%
SLAT Prime Obligation Portfolio                                     .44%
<CAPTION> 
- --------------------------------------------------------------------------------
DIVERSIFIED U.S. STOCK FUND
- --------------------------------------------------------------------------------
UNDERLYING PORTFOLIOS                                     UNDERLYING PORTFOLIOS'
ELIGIBLE FOR PURCHASE                                        EXPENSE RATIOS*
<S>                                                       <C>
SIMT Large Cap Growth Portfolio                                     .85%
SIMT Large Cap Value Portfolio                                      .82%
SIMT Small Cap Growth Portfolio                                    1.10%
SIMT Small Cap Value Portfolio                                     1.10%
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.
 
   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. 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's
Shares 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 charged to 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."
 
                                                                    5
<PAGE>
 
INVESTMENT 
OBJECTIVES AND 
POLICIES OF THE FUNDS __________________________________________________________
                                                     ...........................
                  The Funds offer investors the      .[SYMBOL APPEARS HERE]     
                  opportunity to invest in certain   .  WHAT ARE                
                  of the Underlying Portfolios, and  .  INVESTMENT              
                  are designed primarily for         .  OBJECTIVES AND          
                  tax-advantaged retirement and      .  POLICIES?               
                  other long-term investment or      .                          
                  savings accounts, including:       . A Fund's investment      
                  Individual Retirement Accounts     . objective is a statement 
                  ("IRAs"), 403(b)(7) tax-sheltered  . of what it seeks to      
                  retirement accounts for employees  . achieve. It is important 
                  of certain non-profit              . to make sure that the    
                  organizations, 401(k) savings      . investment objective     
                  plans, profit-sharing and          . matches your own         
                  money-purchase pension plans, and  . financial needs and      
                  other employer-sponsored pension   . circumstances. The       
                  and savings plans.                 . investment policies      
                                                     . section spells out the   
                       In order to achieve its       . types of mutual funds in 
                  investment objective, each Fund    . which each Fund invests  
                  typically invests a percentage of  . in attempting to meet    
                  its assets within predetermined    . its investment objective.
                  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.
 
                                                                 6
<PAGE>
 
DIVERSIFIED       The Diversified Conservative Income Fund seeks to provide
CONSERVATIVE      current income and an opportunity for capital appreciation
INCOME FUND       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 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 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       The Diversified Conservative Fund seeks to provide current
CONSERVATIVE FUND 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>
 
                                                                    7
<PAGE>
 
DIVERSIFIED       The Diversified Moderate Growth Fund seeks to provide long-
MODERATE          term capital appreciation with a limited level of current
GROWTH FUND       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       The Diversified Growth Fund seeks to provide long-term
GROWTH FUND       capital appreciation. Current income is a secondary
                  consideration. In general, relative to the other Funds, the
                  Diversified Growth 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>
 
                                                                    8
<PAGE>
 
DIVERSIFIED       The Diversified U.S. Stock Fund seeks to provide long-term
U.S. STOCK FUND   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 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
 
                                                                    9
<PAGE>

                  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."
 
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;

                  . Investing in the Underlying Portfolios through the Funds
                    involves certain additional expenses and tax results that
                    would not be present in a direct investment in the
                    Underlying Portfolios;

                  . 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 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 5% 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 15% and
                    can invest as much as 45% 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
 
                                                                    10
<PAGE>

                  . 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.
 
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>
 
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.
 
SIMT LARGE CAP    The SIMT Large Cap Growth Portfolio seeks to provide capital
GROWTH PORTFOLIO  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 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").
 
                                                                    12
<PAGE>
 
SIMT LARGE CAP    The SIMT Large Cap Value Portfolio seeks to provide long-
VALUE PORTFOLIO   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    The SIMT Small Cap Growth Portfolio seeks to provide long-
GROWTH PORTFOLIO  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 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    The SIMT Small Cap Value Portfolio seeks to provide capital
VALUE PORTFOLIO   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
 
                                                                    13
<PAGE>
 
                  $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 The SIT International Equity Portfolio seeks to provide
EQUITY PORTFOLIO  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.

                     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
 
                                                                    14
<PAGE>
 
                  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, purchase securities on a when-
                  issued or delayed delivery basis and invest up to 10% of its
                  total assets in illiquid securities. 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 advisers 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 advisers to
                  be of comparable quality.
 
SIT EMERGING      The SIT Emerging Markets Equity Portfolio seeks to provide
MARKETS EQUITY    capital appreciation by investing primarily in a diversified
PORTFOLIO         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 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.
 
                                                                    15
<PAGE>
 
                     The Portfolio may invest up to 10% of its total assets in
                  illiquid securities. The Portfolio's advisers believe 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 Portfolio's 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.

                     The Portfolio may invest up to 10% of its total assets in
                  shares of other investment companies.

                     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 the advisers
                  determine 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 created by
                  its sub-adviser. 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 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.
 
                                                                    16
<PAGE>
 
SIMT CORE FIXED   The SIMT Core Fixed Income Portfolio seeks to provide
INCOME PORTFOLIO  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   The SIMT High Yield Bond Portfolio seeks to maximize total
BOND PORTFOLIO    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 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
 
                                                                    17
<PAGE>
 
                  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; (vi) 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--The SIMT High Yield Bond Portfolio may invest 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 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,
 
                                                                    18
<PAGE>
 
                  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 or unrated 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 The SIT International Fixed Income Portfolio seeks to
FIXED INCOME      provide capital appreciation and current income through
PORTFOLIO         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.

                     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.
 
                                                                    19
<PAGE>
 
                  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.
                  Since a relatively high percentage of assets of the
                  Portfolio may be invested in the obligations of a limited
                  number of issuers, 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"), by limiting
                  its investments so that, at the close of each quarter of the
                  taxable year, (a) not more than 25% of the market value of
                  the Portfolio's total assets is invested in the securities
                  (other than U.S. Government Securities) of a single issuer
                  and (b) at least 50% of the market value of the Portfolio's
                  total assets is represented by (i) cash and cash items, (ii)
                  U.S. Government Securities and (iii) other securities
                  limited in respect to any one issuer to an amount not
                  greater in value than 5% of the market value of the
                  Portfolio's total assets and to not more than 10% of the
                  outstanding voting securities of such issuer.

                     For temporary defensive purposes, when the adviser
                  determines that market conditions warrant, the Portfolio may
                  invest up to 100% of its assets in U.S. dollar denominated
                  fixed income securities or debt obligations and the
                  following domestic and foreign money market instruments:
                  government obligations, certificates of deposit,
 
                                                                    20
<PAGE>
 
                  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        The SLAT Prime Obligation Portfolio seeks to preserve
OBLIGATION        principal value and maintain a high degree of liquidity
PORTFOLIO         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 that are members of the Federal
                  Reserve System or the Federal Deposit Insurance Corporation
                  or savings and loan institutions, 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 in restricted securities and may
                  invest up to 10% of its net assets in illiquid securities.
                  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>
 
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   The Underlying Portfolios, except the SIMT Core Fixed
Currency          Income, SIMT Large Cap Growth, SIMT Small Cap Growth, SIMT
Contracts         Large Cap Value, SIMT Small Cap Value, and SLAT Prime
                  Obligation Portfolios may purchase forward foreign currency
                  contracts.

Illiquid          Each Underlying Portfolio's investment in illiquid
Securities        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        Each Underlying Portfolio, except the SLAT Prime Obligation
Company           Portfolio, may purchase investment company securities, which
Securities        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        Each Underlying Portfolio, except the SLAT Prime Obligation
Grade Debt        Portfolio, may invest in investment grade debt securities.
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 securities lack outstanding investment characteristics
                  and in fact have speculative characteristics as well.

Money Market      In order to meet liquidity needs or for temporary defensive
Instruments       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
 
                                                                    22
<PAGE>
 
                  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       Each Underlying Portfolio, except the SLAT Prime Obligation
Futures           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        Each Underlying Portfolio, except the SLAT Prime Obligation
Lending           Portfolio, may lend its securities to qualified investors
                  for the purpose of realizing additional income.

U.S. Dollar       Each Underlying Portfolio, except the SLAT Prime Obligation,
Denominated       SIMT Small Cap Growth, and SIMT Core Fixed Income
Securities of     Portfolios, may invest in U.S. dollar denominated securities
Foreign Issuers   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   The Underlying Portfolios may purchase securities on a when-
Delayed Delivery  issued or delayed-delivery basis.
Securities
                     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.
 
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,
 
                                                                    23
<PAGE>
 
                  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 instrumentalities and, with
                  respect to the SLAT Prime Obligation Portfolio, obligations
                  of domestic banks.)

                     The foregoing percentage limitations relating to the
                  Underlying Portfolios' investment 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.
 
                                                                    24
<PAGE>

THE ADVISER AND 
MANAGER OF THE FUNDS ___________________________________________________________
                                                     ...........................
                 Under an Investment Advisory        .[SYMBOL APPEARS HERE]     
                 Agreement with the Trust, SEI       .  INVESTMENT              
                 Financial Management Corporation    .  ADVISER                 
                 ("SFM" or the "Adviser") acts as    .                          
                 the investment adviser to each      . A Fund's investment      
                 Fund. Under the Agreement, the      . adviser manages the      
                 Adviser provides its proprietary    . investment activities    
                 asset allocation services to the    . and is responsible for   
                 Funds, and exercises investment     . the performance of the   
                 discretion over the assets of the   . Fund. The Adviser        
                 Funds. The Adviser monitors the     . executes investment      
                 allocation of each Fund's assets,   . strategies based on an   
                 and is responsible for supervising  . assessment of economic   
                 compliance with each Fund's         . and market conditions,   
                 fundamental investment objective    . and determines the       
                 and policies. Although it is        . appropriate allocation   
                 expected that each Fund will        . of the Fund's assets     
                 typically be fully invested in the  . among the Underlying     
                 Underlying Portfolios, the Adviser  . Portfolios.              
                 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.

                    Under an Administration Agreement with the Trust, SFM also
                 provides the Trust with overall management services,
                 regulatory reporting, all necessary office space, equipment,
                 personnel, and facilities, and acts as dividend disbursing
                 agent and shareholder servicing agent. For these services to
                 the Funds, SFM 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. SFM has agreed to
                 waive its administration fee for the foreseeable future. This
                 waiver is voluntary and may be discontinued at any time in
                 SFM's 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 29 investment companies including more than 273
                 portfolios, which investment companies had more than $59
                 billion in assets as of February 29, 1996.

                    Investment and asset allocation decisions for the Funds
                 are made by a committee within SFM.
 
                                                                 25
<PAGE>
 
 
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 April 1, 1996:
 
 
<TABLE>
<CAPTION>
             UNDERLYING PORTFOLIO      INVESTMENT ADVISER    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
                                                             MERUS-UCA Capital Management
             --------------------------------------------------------------------------------------
             SIMT Small Cap Growth     SFM                   Apodaca-Johnston Capital Management
                                                             Nicholas-Applegate Capital Management
                                                             Pilgrim Baxter & Associates, Ltd.
                                                             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.
                                                             Morgan Grenfell Investment Services,  
                                                              Ltd.
                                                             Schroder Capital Management
                                                              International Ltd.
             --------------------------------------------------------------------------------------
             SIT Emerging Markets       SFM                   Montgomery Asset Management, L.P.
              Equity                                        
             --------------------------------------------------------------------------------------
             SIMT Core Fixed Income    SFM                   Western Asset Management Company
                                                             Firstar Investment Research &  
                                                              Management Company
                                                             BlackRock Financial Management, Inc.
             --------------------------------------------------------------------------------------
             SIMT High Yield Bond      SFM                   BEA Associates
             --------------------------------------------------------------------------------------
             SIT International Fixed   Strategic Fixed       None
              Income                   Income, L.P.
             --------------------------------------------------------------------------------------
             SLAT Prime Obligation     Wellington Management None
                                       Company
             --------------------------------------------------------------------------------------
</TABLE>
 
                                                                    26
<PAGE>
 
SEI FINANCIAL        In addition to serving as the Trust's Adviser, SFM serves
MANAGEMENT        as investment adviser to each Underlying Portfolio except
CORPORATION       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.

                     In addition, SFM has general oversight responsibility for
                  the investment sub-advisory services provided to the
                  Underlying SEI Portfolios, including formulating investment
                  policies and analyzing economic trends affecting the
                  Underlying SEI Portfolios. SFM is also responsible, subject
                  to the review and approval of the Trust's Board of Trustees,
                  for setting each Underlying SEI Portfolio's overall
                  investment strategy, managing the allocation of assets among
                  the Underlying SEI Portfolio's sub-advisers, directing and
                  evaluating the investment services provided by the sub-
                  advisers, including their adherence to the investment
                  objectives and policies and investment performance of each
                  Underlying SEI Portfolio and determining when to hire or
                  replace a sub-adviser. In accordance with these investment
                  objectives and policies, and under the supervision of SFM
                  and the Trust's Board of Trustees, each sub-adviser is
                  responsible for the day-to-day investment management of all
                  or a discrete portion of the assets of an Underlying SEI
                  Portfolio. SFM and the sub-advisers are authorized to make
                  investment decisions for the Underlying SEI Portfolios and
                  place orders on behalf of the Underlying SEI Portfolios to
                  effect the investment decisions made.

                     SFM has applied for and expects to receive an exemptive
                  order from the SEC that will permit SFM, with the approval
                  of the Underlying Trusts' Boards of Trustees, to retain sub-
                  advisers for Underlying SEI Portfolios of SIMT and SIT
                  without submitting the sub-advisory agreements to a vote of
                  the Underlying SEI Portfolios' shareholders. The exemptive
                  relief will also permit the non-disclosure of amounts
                  payable by SFM under such sub-advisory agreements. Under
                  this exemptive order, if one of the sub-advisers is
                  terminated or departs from an Underlying SEI Portfolio with
                  multiple sub-advisers, the Underlying SEI Portfolio will
                  handle such termination or departure in one of two ways.
                  First, the Underlying SEI Portfolio may propose that a new
                  sub-adviser be appointed to manage that portion of the
                  Underlying SEI Portfolio's assets managed by the departing
                  sub-adviser. In this case, the Underlying SEI Portfolio
                  would be required to submit to the Underlying SEI
                  Portfolio's shareholders the investment sub-advisory
                  contract with the new sub-adviser only if such sub-adviser
                  was affiliated with SFM or SEI. In the alternative, the
                  Underlying SEI Portfolio may decide to allocate the
                  departing sub-adviser's assets among the remaining
                  sub-advisers. This allocation would not require a new
                  investment sub-advisory contract, and consequently, no
                  shareholder approval would be necessary.
 
                                                                    27
<PAGE>
 
                     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   Strategic Fixed Income L.P. ("SFI") acts as the investment
INCOME L.P.       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
                  fee waiver at any time in its sole discretion.
 
WELLINGTON        Wellington Management Company ("WMC"), 75 State street,
MANAGEMENT        Boston, Massachusetts 02109, serves as the investment
COMPANY           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 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.
 
                                                                    28
<PAGE>
 
ACADIAN ASSET     Acadian Asset Management, Inc. ("Acadian") acts as an
MANAGEMENT, INC.  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.

                     Acadian is entitled to a fee from the Adviser calculated
                  on the basis of a percentage of the market value of the
                  assets assigned to it. That fee, which is paid monthly, is
                  based on an annual percentage rate of .325% of assets
                  managed up to $150 million; .25% of the next $150 million of
                  such assets; and .20% of such assets in excess of $300
                  million.
 
ALLIANCE CAPITAL  Alliance Capital Management L.P. ("Alliance Capital") serves
MANAGEMENT L.P.   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 the greater of $125,000 or a
                  fee, which is calculated and paid monthly, based on an
                  annual percentage rate of .25% of the average monthly market
                  value of assets of the SIMT Large Cap Growth Portfolio
                  managed by Alliance. Alliance may waive all or a portion of
                  its fee in order to limit the operating expenses of the
                  Portfolio. Alliance reserves the right, in its sole
                  discretion, to terminate any such voluntary fee waiver at
                  any time.
 
APODACA-JOHNSTON  Apodaca-Johnston Capital Management ("Apodaca") serves as an
CAPITAL           investment sub-adviser to a portion of the assets of the
MANAGEMENT        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.

                     The Adviser pays Apodaca a fee, which is calculated and
                  paid monthly, based on an annual percentage rate of .50% of
                  the average monthly market value of the assets of the SIMT
                  Small Cap Growth Portfolio managed by Apodaca.
 
                                                                    29
<PAGE>
 
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, which is calculated and paid
                  monthly, based on an annual percentage rate of .3375% of the
                  average monthly market value of the assets of the SIMT High
                  Yield Bond Portfolio managed by BEA.
 
BLACKROCK         BlackRock Financial Management, Inc. ("BlackRock") serves as
FINANCIAL         an investment sub-adviser to a portion of the assets of the
MANAGEMENT, INC.  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, which is calculated and
                  paid monthly, based on an annual percentage rate of .15% of
                  the average monthly market value of the assets of the SIMT
                  Core Fixed Income Portfolio managed by BlackRock.
 
BOSTON PARTNERS   Boston Partners Asset Management, L.P. ("BPAM") serves as
ASSET MANAGEMENT, investment sub-adviser to a portion of the assets of the
L.P.              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
 
                                                                    30
<PAGE>

                  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, which is calculated and paid
                  monthly, based on an annual percentage rate of .50% of the
                  average monthly market value of the assets of the SIMT Small
                  Cap Value Portfolio managed by BPAM.
 
1838 INVESTMENT   1838 Investment Advisors, L.P. ("1838") serves as investment
ADVISORS, L.P.    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, which is calculated and paid
                  monthly, based on an annual percentage rate of .50% of the
                  average monthly market value of assets of the SIMT Small Cap
                  Value Portfolio managed by 1838.
 
FIRSTAR           Firstar Investment Research & Management Company ("FIRMCO")
INVESTMENT        serves as an investment sub-adviser to a portion of the
RESEARCH &        assets of the SIMT Core Fixed Income Portfolio. FIRMCO is a
MANAGEMENT        registered investment adviser with its principal business
COMPANY           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, which is calculated and
                  paid monthly, based on an annual percentage rate of .10% of
                  the average monthly market value of the assets of the SIMT
                  Core Fixed Income Portfolio managed by FIRMCO.
 
IDS ADVISORY      IDS Advisory Group Inc. ("IDS") serves as investment sub-
GROUP INC.        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 the greater of $125,000 or a fee
                  which is calculated and paid monthly, based on an annual
                  percentage rate of .25% of the average monthly market value
                  of assets of the SIMT Large Cap Growth Portfolio managed by
                  IDS.
 
                                                                    31
<PAGE>
 
LSV ASSET         LSV Asset Management ("LSV") serves as investment sub-
MANAGEMENT        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, which is calculated and paid
                  monthly, based on an annual percentage rate of .20% of the
                  average monthly market value of the assets of the SIMT Large
                  Cap Value Portfolio managed by LSV.
 
MELLON EQUITY     Mellon Equity Associates ("Mellon Equity") serves as
ASSOCIATES        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, which is calculated
                  and paid monthly, based on an annual percentage rate of .20%
                  of the average monthly market value of the assets of the
                  SIMT Large Cap Value Portfolio managed by Mellon Equity.
 
MERUS-UCA CAPITAL MERUS-UCA Capital Management ("MERUS-UCA") serves as
MANAGEMENT        investment sub-adviser to a portion of the assets of the
                  SIMT Large Cap Value Portfolio. MERUS-UCA 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. As of December 31, 1995,
                  MERUS-UCA had discretionary management authority with
                  respect to approximately $11.9 billion of assets. The
                  principal business address of MERUS-UCA is 475 Sansome
                  Street, San Francisco, California 94111.

                     The Adviser pays MERUS-UCA a fee, which is calculated and
                  paid monthly, based on an annual percentage rate of .20% of
                  the average monthly market value of the assets of the SIMT
                  Large Cap Value Portfolio managed by MERUS-UCA.
 
MONTGOMERY ASSET  Montgomery Asset Management, L.P. ("MAM") acts as the
MANAGEMENT L.P.   investment sub-adviser to the SIT Emerging Markets Equity
                  Portfolio. In accordance with the Portfolio's investment
 
                                                                    32
<PAGE>
 
                  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 independent 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.

                     MAM is entitled to a fee from the Adviser calculated on
                  the basis of a percentage of the market value of the assets
                  assigned to it. That fee, which is paid monthly, is based on
                  an annual percentage rate of .90% of the first $50 million
                  assets and .55% of the assets in excess of $50 million.
 
MORGAN GRENFELL   Morgan Grenfell Investment Services Limited ("MG") acts as
INVESTMENT        the investment sub-adviser to the SIT International Equity
SERVICES LIMITED  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. Morgan Grenfell Asset Management employs
                  more than 15 European investment professionals. 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.

                     MG is entitled to a fee from the Adviser calculated on
                  the basis of a percentage of the market value of assets
                  assigned to it. That fee, which is paid monthly, is based on
                  an annual percentage rate of .325%.
 
NICHOLAS-         Nicholas-Applegate Capital Management ("Nicholas-Applegate")
APPLEGATE         serves as investment sub-adviser to a portion of the assets
CAPITAL           of the SIMT Small Cap Growth Portfolio. Nicholas-Applegate
MANAGEMENT        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, which is
                  calculated and paid monthly, based on an annual percentage
                  rate of .50% of the average monthly market value of assets
                  of the SIMT Small Cap Growth Portfolio managed by Nicholas-
                  Applegate.
 
                                                                    33
<PAGE>
 
PILGRIM BAXTER &  Pilgrim Baxter & Associates, Ltd. ("Pilgrim Baxter") serves
ASSOCIATES, LTD.  as investment sub-adviser to a portion of the assets of the
                  SIMT Small Cap Growth Portfolio. Pilgrim Baxter is a
                  professional investment management firm and registered
                  investment adviser that, along with its predecessors, has
                  been in business since 1982. The controlling shareholder of
                  the Pilgrim Baxter is United Asset Management Corporation
                  ("UAM"). UAM's corporate headquarters are located at One
                  International Place, Boston, Massachusetts 02110. Pilgrim
                  Baxter currently has discretionary management authority with
                  respect to approximately $9.0 billion in assets. In addition
                  to advising the Portfolio, Pilgrim Baxter provides advisory
                  services to pension and profit-sharing plans, charitable
                  institutions, corporations, individual investors, trusts,
                  private investment limited partnerships, and other
                  investment companies. The principal business address of
                  Pilgrim Baxter is 1255 Drummers Lane, Suite 300, Wayne,
                  Pennsylvania 19087.

                     The Adviser pays Pilgrim Baxter a fee, which is
                  calculated and paid monthly, based on an annual percentage
                  rate of .50% of the average monthly market value of assets
                  of the SIMT Small Cap Growth Portfolio managed by Pilgrim
                  Baxter.
 
PROVIDENT         Provident Investment Counsel, Inc. ("Provident"), is a
INVESTMENT        registered investment adviser with its principal business
COUNSEL, INC.     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.

                     Provident is entitled to a fee from the Adviser, which is
                  calculated and paid monthly, at an annual rate of .25% of
                  the average monthly market value of the assets of the SIMT
                  Large Cap Growth Portfolio managed by Provident.
 
SCHRODER CAPITAL  Schroder Capital Management International Limited ("SC")
MANAGEMENT        acts as the investment sub-adviser to the SIT International
INTERNATIONAL     Equity Portfolio. SC was founded in January, 1989 and is a
LIMITED           wholly-owned indirect subsidiary of Schroders plc, the
                  holding company parent of an investment banking and
                  investment management group of companies (the "Schroder
                  Group"). The investment management operations of the
                  Schroder Group are located in 17 countries worldwide,
                  including ten in Asia. As of December 31, 1995, the Schroder
                  Group had over $110 billion in assets under management. As
                  of that date, SC had over $7 billion in assets under
                  management.

                     The Schroder Group has research resources throughout the
                  Asian region, consisting of offices in Tokyo, Hong Kong,
                  Singapore, Kuala Lumpur, Seoul, Taipei, Sydney, Bangkok,
                  Shanghai, and Jakarta, staffed by 41 investment
                  professionals. SC's investment process emphasizes individual
                  stock selection and company research conducted by
                  professionals at each local office which is integrated into
                  SC's global research network by the manager of research in
                  London. The principal address of SC is 33 Gutter Lane,
                  London EC2V 8AS, England.
 
                                                                    34
<PAGE>
 
                     SC is entitled to a fee from the Adviser calculated on
                  the basis of a percentage of the market value of assets
                  assigned to it. That fee, which is paid monthly, is based on
                  an annual percentage rate of .50% of the first $100 million
                  in assets, .30% of the next $50 million in assets, and .20%
                  of assets in excess of $150 million.
 
WALL STREET       Wall Street Associates ("WSA") serves as investment sub-
ASSOCIATES        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.

                     WSA is entitled to a fee from the Adviser, which is
                  calculated on the basis of a percentage of the market value
                  of the assets assigned to it. That fee, which is paid
                  monthly, is based on an annual percentage rate of .50% of
                  the Portfolio's average net assets.
 
WESTERN ASSET     Western Asset Management Company ("Western") serves as an
MANAGEMENT        investment sub-adviser to a portion of the assets of the
COMPANY           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, which is calculated and
                  paid monthly, based on an annual percentage rate of .125% of
                  the average monthly market value of assets of the SIMT Core
                  Fixed Income Portfolio managed by Western.

                     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"), 210
                  West 10th Street, Kansas, City, Missouri 64105, have entered
                  into a transfer agent agreement with respect to the Trust's
                  Class A and Class D shares.
 
                                                                    35
<PAGE>
 
DISTRIBUTION OF FUND 
SHARES 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 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.
 
                                                                    36
<PAGE>
 
                     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 the
                  sales charge it receives or from any other source available
                  to it. 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.
 
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.
 
                                                                    37
<PAGE>

                     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.
 
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  .[SYMBOL APPEARS HERE]    
                  tax-qualified retirement plans     . TAXES                   
                  generally will not be subject to   .                         
                  federal tax liability on either    . You must generally pay  
                  dividend and capital gain          . taxes on your Fund's    
                  distributions from the Funds or    . earnings, whether you   
                  redemption of shares of the Funds. . take your payments in   
                  Rather, participants in such plans . cash or additional      
                  will be taxed when they begin      . shares.                 
                  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

                                                                 38
<PAGE>

                  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     Each Fund is treated as a separate entity for federal income
THE FUNDS         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  .[SYMBOL APPEARS HERE]    
                  capital gain over net short-term   .  DISTRIBUTIONS          
                  capital loss) distributed to       .                         
                  shareholders.                      . A Fund distributes income
                                                     . dividends and capital   
TAX STATUS OF     Each Fund will distribute          . gain. Income dividends  
DISTRIBUTIONS     substantially all of its net       . represent the earnings  
                  investment income (including net   . from the Fund's         
                  short-term capital gain) and net   . investments; capitaL gain
                  capital gain to shareholders.      . distributions occur when
                  Dividends from a Fund's net        . the Fund's investments  
                  investment income will be taxable  . are sold for more than  
                  to its shareholders as ordinary    . their original purchase 
                  income, whether received in cash   . price.                  
                  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 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, exchange, or redemption of a Fund's shares is a
                 taxable transaction to the shareholder.
 
                                                                 39
<PAGE>
 
PURCHASE AND REDEMPTION OF SHARES_______________________________________________
                                                     ...........................
                  The Funds have been designed       .[SYMBOL APPEARS HERE]    
                  primarily for tax-advantaged       .  BUY, EXCHANGE AND      
                  retirement and other long-term     .  SELL REQUESTS ARE IN   
                  investment and savings accounts.   .  "GOOD ORDER" WHEN:     
                  Class A Shares of the Funds are    .                         
                  sold on a continuous basis and may . .The account number and 
                  be purchased directly from the     .  portfolio name are shown
                  Trust's Distributor, SEI Financial . .The amount of the      
                  Services Company. Class D Shares   .  transaction is specified
                  may be purchased through the       .  in dollars or shares   
                  Distributor or through financial   . .Signatures of all owners
                  institutions, broker-dealers, or   .  appear exactly as they 
                  other organizations which have     .  are registered on the  
                  established a dealer agreement or  .  account                
                  other arrangement with SEI         . .Any required signature 
                  Financial Services Company         .  guarantees (if         
                  ("Intermediaries"). This section   .  applicable) are included
                  describes the purchase, exchange   . .Other supporting legal 
                  and redemption services available  .  documents (as necessary)
                  to investors. Please note that the .  are present            
                  services available will vary       ...........................
                  depending upon the class of shares 
                  in which you are investing and the Intermediary, if any,
                  through which you are purchasing shares of the Trust.
                                                     ...........................
PURCHASING        Financial institutions may acquire .[SYMBOL APPEARS HERE]    
SHARES THROUGH    Class A Shares of the Funds for    .  WHAT IS AN             
INTERMEDIARIES    their own account or as record     .  INTERMEDIARY?          
AND RETIREMENT    owner on behalf of fiduciary,      .                         
ACCOUNTS          agency or custody accounts by      . Any entity, such as a   
                  placing orders with the Transfer   . bank, broker-dealer,    
                  Agent. Class D shares of the Funds . other financial         
                  may be purchased through           . institution,            
                  Intermediaries which provide       . association or          
                  various levels of shareholder      . organization which      
                  services to their customers.       . has entered into an     
                  Contact your Intermediary for      . arrangement with the    
                  information about the services     . Distributor to sell     
                  available to you, and for          . Class D shares to its   
                  specific instructions on how to    . customers.              
                  buy, sell and exchange shares.     ...........................

                     Both Class A and 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.

                    State securities laws may require financial institutions
                 and Intermediaries 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 and Intermediaries may
                 impose earlier cut-off times for receipt of purchase orders
                 directed through them. Certain financial institutions and
                 Intermediaries may charge separate customer account fees.
                 Information concerning shareholder services and any charges
                 will be provided to the customer by the Intermediary.
 
                                                                 40
<PAGE>
 
                     The shares you purchase through an Intermediary may be
                  held "of record" by that Intermediary. If you want to
                  transfer the registration of shares beneficially owned by
                  you, but held "of record" by an Intermediary, you should
                  call the Intermediary to request this change.

GENERAL INFORMATION

Business Days     You may buy, sell or exchange shares 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.

                     Class D purchase, exchange and redemption requests
                  received in "good order" will be effective as of the
                  Business Day received by the Transfer Agent as long as the
                  Transfer Agent receives the order and, in the case of a
                  purchase request, payment before 4:00 p.m. Eastern time.
                  Otherwise the purchase will be effective when payment is
                  received.

                     Class A investors 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.

Net Asset Value   An order to buy shares will be executed at a per share price
                  equal to the net asset value next determined after the
                  receipt of the purchase order by the Transfer Agent. No
                  certificates representing shares will be issued.

                     An order to sell shares will be executed at the net asset
                  value per share next determined after receipt and
                  effectiveness of a request for redemption in good order. 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 any Business Day. Payment to
                  shareholders for shares redeemed will be made within 7 days
                  after receipt by the Transfer Agent of the redemption order.

                     At various times, a Fund may be requested to redeem
                  shares for which it has not yet received good payment. In
                  such circumstances, redemption proceeds will be forwarded
                  upon collection of payment for the shares; collection of
                  payment may take 10 or more days. Each Fund intends to pay
                  cash for all shares redeemed, but under abnormal conditions
                  that make payment in cash unwise, payment may be made wholly
                  or partly in portfolio securities with a market value equal
                  to the redemption price. In such cases, an investor may
                  incur brokerage costs in converting such securities to cash.

How the Net       The net asset value per share of each Fund is determined by
Asset Value is    dividing the total market value of such Fund's investments
Determined        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 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
 
                                                                    41
<PAGE>
 
                  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. Purchases will
                  be made in full and fractional shares of a Fund calculated
                  to three decimal places. Although the methodology and
                  procedures for determining net asset value per share are
                  identical for both Classes of a Fund, the net asset value
                  per share of one Class may differ from that of another Class
                  because of the different distribution and shareholder
                  servicing fees charged to each Class.

Minimum           The Class A shares are not subject to a minimum initial
Investments       investment.

                     The minimum initial investment in a Fund's Class D shares
                  is $1,000, however, the minimum investment may be waived at
                  the Distributor's discretion. All subsequent purchases must
                  be at least $100 ($25 for payroll deductions authorized
                  pursuant to pre-approved payroll deduction plans).

                     With respect to both Class A and Class D shares, 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
                  addition, because excessive trading (including short-term
                  "market timing" trading) can hurt a Fund's performance, each
                  Fund may refuse purchase orders from any shareholder account
                  if the accountholder has been advised that previous purchase
                  and redemption transactions were considered excessive in
                  number or amount. Accounts under common control or
                  ownership, including those with the same taxpayer
                  identification number and those administered so as to redeem
                  or purchase shares based upon certain predetermined market
                  indicators, will be considered one account for this purpose.

Maintaining a     Due to the relatively high cost of handling small
Minimum Account   investments, a Fund reserves the right to redeem, at net
Balance           asset value, the Class D Shares any shareholder if, because
                  of redemptions of shares by or on behalf of the shareholder,
                  the account of such shareholder in a Fund has a value of
                  less than $1,000, the minimum initial purchase amount.
                  Accordingly, an investor purchasing shares of a Fund in only
                  the minimum investment amount may be subject to such
                  involuntary redemption if he or she thereafter redeems any
                  of these shares. Before a Fund exercises its right to redeem
                  such shares and to send the proceeds to the shareholder, the
                  shareholder will be given notice that the value of the
                  shares in his or her account is less than the minimum
                  account and will allowed 60 days to make an additional
                  investment in a Fund in an amount that will increase the
                  value of the account to at least $1,000. See "Purchase and
                  Redemption of Shares" in the Statement of Additional
                  Information for examples of when the right of redemption may
                  be suspended.
 
                                                                    42
<PAGE>
 
HOW TO PURCHASE
SHARES THROUGH
THE TRANSFER
AGENT

Opening an        Account Application forms may be obtained by calling 1-800-
Account           342-5734.

By Mail           Both Class A and Class D Shares may be purchased by mailing
                  a completed application and a check (or other negotiable
                  bank instrument or money order) payable to "Class D Shares
                  (Fund Name)" to DST Systems, Inc., P.O. Box 419240, Kansas
                  City, Missouri 64141-6240. If you send a check that does not
                  clear, the purchase will be canceled and you could be liable
                  for any losses or fees incurred by the Funds.

By Telephone      Class A Shares may be purchased by telephone. To buy shares
                  by telephone, call toll free at 1-800-342-5734.

                     Class D Shares may not be purchased by telephone.

By Fed Wire       Both Class A and Class D Shares may be purchased by Fed
                  Wire. To buy shares by Fed Wire, call toll free at 1-800-
                  342-5734.

Automatic         Class A Shares may not be purchased through an Automatic
Investment Plan   Investment Plan.
("AIP")              
                     Class D Shares may be purchased systematically through
                  deductions from your checking or savings accounts, provided
                  these accounts are maintained through banks which are part
                  of the Automated Clearing House ("ACH") system. You may
                  purchase shares on a fixed schedule (semi-monthly or
                  monthly) with amounts as low as $25, or as high as $100,000.
                  The AIP enables you to achieve dollar-cost averaging with
                  respect to investments in Funds with fluctuating net asset
                  values through regular purchases of a fixed dollar amount of
                  shares in the Funds. Dollar-cost averaging brings discipline
                  to your investing. Dollar-cost averaging results in more
                  shares being purchased when a Fund's net asset value is
                  relatively low and fewer shares being purchased when a
                  Fund's net asset value is relatively high, thereby helping
                  to decrease the average price of your shares. Through the
                  AIP, shares are purchased by transferring monies (minimum of
                  $25 per transaction per Fund) from your designated checking
                  or savings account. Your systematic investment in the
                  Fund(s) designated by you will be processed on a regular
                  basis at your option beginning on or about either the first
                  or fifteenth day of the month or quarter you select. Upon
                  notice, the amount you commit to the AIP may be changed or
                  canceled at any time. The AIP is subject to account minimum
                  initial purchase amounts and minimum maintained balance
                  requirements.
 
HOW TO EXCHANGE   Exchange privileges are available to both Class A and Class D
SHARES THROUGH    shareholders.                                       
THE TRANSFER                                                            
AGENT                Once good payment for your shares has been received and
                  accepted (i.e., an account has been established), you may 
When Can You      exchange some or all of your shares of a Fund for shares of 
Exchange          the same Class of the other Funds. Exchanges are made at net
Shares?           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.
 
                                                                    43
<PAGE>

                                                     ...........................
Requesting an     To request an exchange, you must   .[SYMBOL APPEARS HERE]     
Exchange of       provide proper instructions in     .  HOW DOES AN             
Shares            writing to the Transfer Agent.     .  EXCHANGE TAKE           
                  Telephone exchanges will also be   .  PLACE?                  
                  accepted if you previously elected .                          
                  this option on your account        . When making an exchange, 
                  application.                       . you authorize the sale of
                                                     . your shares of one or    
                     In the case of shares held "of  . more Funds in order to   
                  record" by an Intermediary but     . purchase the shares of   
                  beneficially owned by you, you     . another Fund. In other   
                  should contact the Intermediary    . words, you are executing 
                  who will contact the Transfer      . a sell order and then a  
                  Agent and effect the exchange on   . buy order. This sale of  
                  your behalf.                       . your shares is a taxable 
                                                     . event which could result 
                     If an exchange request is for   . in a taxable gain or     
                  Shares of a Fund whose net asset   . loss.                    
                  value is calculated as of a time   ...........................
                  earlier than 4:00 p.m. Eastern 
                  time, the exchange request will not be effective until the
                  next Business Day. Anyone who wishes to make an exchange must
                  have received a current prospectus of the Fund into which the
                  exchange is being made before the exchange will be effected.

Exchange          The Funds' exchange privileges are not intended to afford
Privilege         shareholders a way to speculate on short-term movements in
Limitations       the market. Accordingly, in order to prevent excessive use of
                  the exchange privilege that may potentially disrupt the
                  management of the Funds and increase transaction costs, the
                  Trust reserves the right to limit the amount of or reject any
                  exchange, as deemed necessary by SFM, at any time.
 
HOW TO SELL       Both Class A and Class D shares may be sold by mail.
SHARES THROUGH
THE TRANSFER         To sell your Class D shares, a written request for
AGENT             redemption in good order must be received by the Transfer
                  Agent. Valid written redemption requests will be effective on
By Mail           receipt. All shareholders of record must sign the redemption
                  request. For information about the proper form of redemption
                  request, call 1-800-342-5734. You may also have the proceeds
                  mailed to an address of record designated on the Account
                  Application or specified by written instruction to the
                  Transfer Agent.

                     The Transfer Agent may require that the signatures on the
                  written request be guaranteed. You should be able to obtain a
                  signature guarantee from a bank, broker, dealer, certain
                  credit unions, securities exchange or association, clearing
                  agency or savings association. Notaries public cannot
                  guarantee signatures. The signature guarantee requirement will
                  be waived if all of the following conditions apply: (1) the
                  redemption is for not more than $5,000 worth of shares, (2)
                  the redemption check is payable to the shareholder(s) of
                  record, and (3) the redemption check is mailed to the
                  shareholder(s) at the shareholder(s) address of record. The
                  Trust and the Transfer Agent reserve the right to amend these
                  requirements without notice.

                                                                 44
<PAGE>
 
                                                     ...........................
By Telephone      Both Class A and Class D Shares    .[SYMBOL APPEARS HERE]
or By Wire        may be sold by telephone if you    .  WHAT IS A              
                  previously elected that option on  .  SIGNATURE              
                  the Account Application. You may   .  GUARANTEE?             
                  have the proceeds mailed to the    .                         
                  address of record, wired or sent   . A signature guarantee   
                  by ACH to a commercial bank        . verifies the authenticity
                  account previously designated on   . of your signature and may
                  the Account Application. Under     . be obtained from any of y
                  most circumstances, payments will  . the following: banks,   
                  be transmitted on the next         . brokers, dealers, certain
                  Business Day following receipt of  . credit unions, securities
                  a valid telephone request for      . exchange or association, 
                  redemption. Wire redemption        . clearing agency or       
                  requests may be made by calling    . savings association. A  
                  1-800-342-5734. Class D Shares are . notary public cannot    
                  subject to a wire redemption       . provide a signature     
                  charge (presently $10.00) which    . guarantee.              
                  will be subtracted from the amount ...........................
                  of the redemption.

                     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 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.

Systematic        Systematic Withdrawal Plans may not be established for 
Withdrawal        Class A accounts.
Plan ("SWP")
                     You may establish a systematic withdrawal plan for a 
                  Class D account with a $10,000 minimum balance. Under the
                  plan, redemptions can be automatically processed from accounts
                  (monthly, quarterly, semi-annually or annually) by check or by
                  ACH wire with a minimum redemption amount of $50. Please note
                  that if withdrawals exceed income dividends, your invested
                  principal in the account will be depleted.

                     Thus, depending upon the frequency and amounts of the
                  withdrawal payments and/or any fluctuations in the net asset
                  value per share, your original investment could be exhausted
                  entirely. To participate in the SWP, you must have your
                  dividends automatically reinvested. You may change or cancel
                  the SWP at any time, upon written notice to the Transfer
                  Agent.

Additional        You may redeem shares at any time. For an IRA or other tax-
Considerations    deferred account, you must make your redemption request in
For IRAs or Other writing. Redemption proceeds are normally credited to your
Retirement        account within two business days after the receipt of the
Accounts          request in good order. 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.

                                                                 45
<PAGE>
 
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   The management and affairs of the Trust are supervised by
Trust             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 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.
 
                                                                    46
<PAGE>
 
Shareholder       Shareholder inquiries should be directed to DST Systems,
Inquiries         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.

                     The dividends on Class D Shares will normally be lower
                  than on Class A Shares of a Fund because of the additional
                  distribution, shareholder servicing and transfer agent
                  expenses charged to Class D Shares.

Counsel and       Morgan, Lewis & Bockius LLP serves as counsel to the Trust.
Independent       Price Waterhouse LLP serves as the independent public
Accountants       accountants of the Trust.

Custodian and     SFM, which serves as transfer agent for the Underlying
Wire Agent        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.
 
                                                                    47
<PAGE>
 
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          ADRs are securities, typically issued by a U.S. financial
Depositary        institution (a "depositary"), that evidence ownership
Receipts          interests in a security or a pool of securities issued by a
("ADRs"),         foreign issuer and deposited with the depositary. ADRs
Continental       include American Depositary Shares and New York Shares.
Depositary        EDRs, which are sometimes referred to as Continental
Receipts          Depositary Receipts ("CDRs"), are securities, typically
("CDRs"),         issued by a non-U.S. financial institution, that evidence
European          ownership interests in a security or a pool of securities
Depositary        issued by either a U.S. or foreign issuer. GDRs are issued
Receipts          globally and evidence similar ownership.
("EDRs") and
Global
Depositary
Receipts
("GDRs")

Asset-Backed      Asset-backed securities are securities secured by non-
Securities        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       Convertible securities are corporate securities that are
Securities        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            Demand instruments are instruments which may involve a
Instruments       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. 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 securities, "stripped" U.S. Treasury securities
                  (e.g., Receipts and STRIPs) and privately issued stripped
                  securities (e.g., TGRs, TRs and CATS).

Equity            Equity securities represent ownership interests in a company
Securities        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.
 
                                                                    48
<PAGE>
 
                  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      Fixed income securities are debt obligations issued by
Securities        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   A forward contract involves an obligation to purchase or
Currency          sell a specific currency amount at a future date, agreed
Contracts         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           Futures contracts provide for the future sale by one party
Contracts and     and purchase by another party of a specified amount of a
Options on        specific security at a specified future time and at a
Futures           specified price. An option on a futures contract gives the
Contracts         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 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.
 
                                                                    49
<PAGE>
 
                     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% 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.
 
                                                                    50
<PAGE>
 
Illiquid          Illiquid securities are securities that cannot be disposed
Securities        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      Money market securities are high-quality, dollar-
Instruments       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   Mortgage-backed securities are instruments that entitle the
Securities        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.

                     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 mortgage loans. The
                  primary issuers or guarantors of these mortgage-backed
                  securities are GNMA, FNMA and FHLMC. Government and private
                  guarantees do not extend to the securities' value, which is
                  likely to vary inversely with fluctuations in interest
                  rates.

                     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
 
                                                                    51
<PAGE>
 
                  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 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.

                     Risk Factors. Due to the possibility of prepayments of
                  the underlying mortgage instruments, mortgage-backed
                  securities generally do not have a known maturity. In the
                  absence of a known maturity, market participants generally
                  refer to an estimated average life. An average life estimate
                  is a function of an assumption regarding anticipated
                  prepayment patterns, based upon current interest rates,
                  current conditions in the relevant housing markets and other
                  factors. The assumption is necessarily subjective, and thus
                  different market participants can produce different average
                  life estimates with regard to the same security. There can
                  be no assurance that estimated average life will be a
                  security's actual average life.

Mortgage Dollar   Mortgage "dollar rolls" are transactions in which mortgage-
Rolls             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.
                  Any difference between the sale price and the purchase price
                  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         Municipal securities consist of (i) debt obligations issued
Securities        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
 
                                                                    52
<PAGE>
 
                  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    Obligations of supranational entities are obligations of
Supranational     entities established through the joint participation of
Entities          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.

                     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
 
                                                                    53
<PAGE>
 
                  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 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.
 
                                                                    54
<PAGE>
 
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        Repurchase agreements are agreements by which a Portfolio
Agreements        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.

Securities        In order to generate additional income, a Portfolio may lend
Lending           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     There are certain risks connected with investing in foreign
Foreign Issuers   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.
 
                                                                    55
<PAGE>
 
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,      Interest rate swaps, mortgage swaps, currency swaps and
Floors and        other types of swap agreements such as caps, floors and
Collars           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 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.
                  An interest rate collar combines elements of buying a cap
                  and selling a floor.

                     Swaps, Caps, Floors and Collars are sophisticated hedging
                  instruments that typically involve a small investment of
                  cash relative to the magnitude of risk assumed. As a result,
                  these instruments can be highly volatile and have a
                  considerable impact on a Portfolio's performance.
U.S. Government   Obligations issued or guaranteed by agencies of the U.S.
Agency            Government, including, among others, the Federal Farm Credit
Obligations       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     U.S. Treasury obligations consist of bills, notes and bonds
Obligations       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      Certain obligations may carry variable or floating rates of
Floating Rate     interest and may involve conditional or unconditional demand
Instruments       features. Such instruments bear interest at rates which are
                  not fixed, but which vary with changes in specified market
                  rates or indices. The
 
                                                                    56
<PAGE>
 
                  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.

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   When-issued or delayed delivery transactions involve the
Delayed Delivery  purchase of an instrument with payment and delivery taking
Securities        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            Yankee obligations ("Yankees") are U.S. dollar-denominated
Obligations       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,      Zero coupon securities are securities that are sold at a
Pay In-Kind and   discount to par value and securities on which interest
Deferred Payment  payments are not made during the life of the security. Upon
Securities        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.
 
                                                                    57
<PAGE>
 
TABLE OF CONTENTS ______________________________________________________________
<TABLE>
<S>                                    <C>
Fund Expenses (Class A Shares).......    2
Fund Expenses (Class D Shares).......    3
Indirect Expenses....................    4
Investment Objectives and Policies of
the Funds............................    6
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...........................   23
</TABLE>
<TABLE>
<S>                                   <C>
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......................   35
Distribution of Fund Shares and
Shareholder Servicing...............   36
Performance.........................   37
Taxes...............................   38
Purchase and Redemption of Shares...   40
General Information.................   46
Description of Permitted Investments
and Risk Factors of the Underlying
Portfolios..........................   48
</TABLE>
<PAGE>
 
SEI ASSET ALLOCATION TRUST
                        
          INVESTMENT ADVISER, MANAGER AND SHAREHOLDER SERVICING AGENT:      
                 SEI FINANCIAL MANAGEMENT CORPORATION

          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 
April 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>
<CAPTION>
                       TABLE OF CONTENTS
<S>                                                                  <C>
The Trust...........................................................  S-2
Description of Permitted Investments of the
 Underlying Portfolios..............................................  S-2
Investment Limitations of the Funds................................. S-11
Investment Limitations of the Underlying
 Portfolios......................................................... S-13
The Manager and Shareholder Servicing Agent......................... S-17
The Investment Adviser to the Funds................................. S-18
The Advisers and Sub-Advisers
 To the Underlying Portfolios....................................... S-18
Portfolio Managers of the Underlying Portfolios......................S-21 
Distribution........................................................ S-19
Trustees and Officers of the Trust.................................. S-19
Performance......................................................... S-21
Purchase and Redemption of Shares................................... S-21
Shareholder Services................................................ S-22
Taxes............................................................... S-23
Portfolio Transactions.............................................. S-24
Description of Shares............................................... S-25
Limitation of Trustees' Liability................................... S-25
Voting.............................................................. S-26
Shareholder Liability............................................... S-26
Experts..............................................................S-30 
Financial Statements.................................................S-30   
</TABLE>      

    
April 1, 1996      


SEI-F-113-01
<PAGE>
 
THE TRUST
    
SEI Asset Allocation (the "Trust") is an open-end management investment company
that currently consists of the following five separate investment portfolios
(each a "Fund" and, together, the "Funds"):  Diversified Conservative Income
Fund, Diversified Conservative Fund, Diversified Moderate Growth Fund,
Diversified Growth 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 and manager.  (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 portfolio 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
Moderate Growth Fund, Diversified Growth 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.      
<PAGE>
 
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 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 a Portfolio's net asset value.      

                                      S-3
<PAGE>
 
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 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

                                      S-4
<PAGE>
 
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.

     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.

                                      S-5
<PAGE>
 
     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 ("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     

                                      S-6
<PAGE>
 
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 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     

                                      S-7
<PAGE>
 
    
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."

         
    
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     

                                      S-8
<PAGE>
 
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 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 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 a 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 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     

                                      S-9
<PAGE>
 
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.     
    
SWAP, 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.     
    
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 payments to the extent
that a specified interest rate falls below an agreed-upon level.     
    
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 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,     

                                      S-10
<PAGE>
 
    
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 Sates 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.     

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 the 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.

                                      S-11
<PAGE>
 
   
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.
     
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

                                      S-12
<PAGE>
 
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.
     
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

                                      S-13
<PAGE>
 
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 wit
hout the consent of the holders of a majority of that Portfolio's outstanding
shares. The term "majority of outstanding shares" means the vote of (i) 67% or
more of an Underlying Portfolio's shares present at a meeting, if not more than
50% of the outstanding shares of an Underlying Portfolio are present or
represented by proxy, or (ii) more than 50% of an Underlying Portfolio's out
standing shares, whichever is less.
     
    
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.
     
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
     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:

                                      S-14
<PAGE>
 
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 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:

                                      S-15

<PAGE>
 
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 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.

                                      S-16

<PAGE>
 
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
     "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.

                                      S-17
<PAGE>
 
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.  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 Core International
     Equity, SIT Emerging Markets Equity, SIT International Fixed Income and
     SLAT Prime Obligation Portfolios) of its net assets in illiquid securities,
     including securities which are not readily marketable or are restricted.
                                                                                

                                      S-18
<PAGE>
 
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 illiquid.

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


THE MANAGER AND SHAREHOLDER SERVICING AGENT TO THE FUNDS

The Administration Agreement provides that SEI Financial Management Corporation
("SFM") 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 SFM 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 Administrator; or (e)
as to any Fund or the Trust, effective upon the liquidation of such Fund or the
Trust, as the case may be.

SFM, a wholly-owned subsidiary of SEI, was organized as a Delaware corporation
in 1969, and has its principal business offices at 680 East Swedesford Road,
Wayne, Pennsylvania 19087-1658.  Alfred P. West, Jr., Henry H. Greer and Carmen
V. Romeo constitute the Board of Directors of SFM.  Mr. West serves as the
Chairman of the Board of Directors and Chief Executive Officer of SFM and SEI.
Mr. Greer serves as President and Chief Operating Officer of SFM and SEI.  SEI
and its subsidiaries are leading providers of funds evaluation services, trust
accounting systems, and brokerage and information services to financial
institutions, institutional investors and money managers.  SFM also serves 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, Conestoga Family of 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 Funds, Morgan Grenfell Investment Trust, The PBHG Funds, Inc.,
The Pillar Funds, Rembrandt Funds(R), 1784 Funds, SEI Daily Income Trust, SEI 
Index Funds, SEI Institutional Managed Trust, SEI International Trust, SEI 
Liquid Asset Trust, SEI Tax Exempt Trust, STI Classic Funds and STI Classic 
Variable Trust.

If operating expenses of any Fund exceed limitations established by certain
states, SFM will pay such excess.  SFM 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 Adviser shall not be protected against any liability

                                      S-19
<PAGE>
 
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, 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     

                                      S-20
<PAGE>
 
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.     

Merus-UCA Capital Management ("Merus"), 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 Merus has been responsible for managing the assets
of the Portfolio allocated to Merus 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      

                                      S-21
<PAGE>
 
    
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.     

    
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.     

    
Michael D. Jones, CFA, joined Pilgrim Baxter & Associates, Ltd. ("Pilgrim
Baxter") in February, 1995 as a portfolio manager.  Mr. Jones has been managing
the a portion of the assets of the SIMT Small Cap Growth Portfolio since April
15, 1995.  Prior to joining Pilgrim Baxter, Mr. Jones was a portfolio manager
with The Bank of New York from June, 1990 to January, 1995.     

    
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, Holly L. Guthrie 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 and Ms. Guthrie joined 1838 in 1994.  Mr. Powell managed small cap equity
portfolios for Provident Capital Management from 1987 to 1994.  Ms. Guthrie
managed small cap equity portfolios for Provident Capital Management from 1992
to 1994.  Prior to that she was employed by CoreStates Investment Advisers from
1987 to 1992 as an equity analyst and portfolio manager.  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.     

    
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,      

                                      S-22
<PAGE>
 
    
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.     

    
John S. Ager, a Senior Vice President and Director of Schroder Capital
Management International Limited ("SC") and John Stainsby, First Vice President
of SC, both have served as principal portfolio managers for a portion of the
assets of the SIT International Equity Portfolio and its predecessor fund since
its inception.  Mr. Ager has over 20 years of experience in managing client
accounts invested in Asian countries.  Mr. Stainsby has over 10 years experience
of managing Asian investments.     

    
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. ("MAM") 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 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      

                                      S-23
<PAGE>
 
    
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 SFM (as Manager and 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, PA 19087. Certain trustees and officers of the Trust also serve as 
trustees and officers of some or all of the following: The Achievement Funds 
Trust; The Advisors' Inner Circle Fund; The Arbor Fund; ARK Funds; Bishop 
Street Funds; Conestoga Family of 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 Funds; Morgan Grenfell Investment Trust; The Pillar Funds; The
PBHG Funds, Inc.; Rembrandt Funds(R); SEI Index Funds; SEI Institutional Managed
Trust; SEI International Trust; SEI Liquid Asset Trust; SEI Tax Exempt Trust; 
1784 Funds; Stepstone Funds; STI Classic Funds; and STI Classic Variable Trust, 
each of which is an open-end management investment company managed by SEI 
Financial Management Corporation and, except for Rembrandt Funds(R), 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 1986-94. Director and Executive Vice
President of the Manager and Executive Vice President of the Distributor 
1981-94.

RICHARD F. BLANCHARD (DOB 01/21/20) - Trustee** - P.O. Box 76, Canfield Road,
Convent Station, NJ 07961. Private Investor. Director of AEA Investors Inc.
(acquisition and investment firm) June 1981-86, Director of Baker Hughes Corp.
(oil service company) 1976-88. Director of Imperial Clevite Industries
(transportation equipment

                                      S-24

<PAGE>
 
company) 1981-87.  Executive Vice President of American Express Company
(financial services company), responsible for the investment function, before
June 1981.

WILLIAM M. DORAN (DOB 05/26/40) - Trustee* - 2000 One Logan Square,
Philadelphia, PA 19103. Partner of Morgan, Lewis & Bockius LLP, 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, since
1989. President, Federal Reserve Bank of Boston, 1968-1988. Trustee of The Arbor
Fund, Marquis Funds, Advisors' Inner Circle Fund, Advisors' Inner Circle Fund
II, Inc. and FFB Lexicon Funds.

JAMES M. STOREY (DOB 04/12/31) - Trustee** - Ten Post Office Square, Boston, MA
02109. Partner of Dechert Price & Rhodes (law firm).

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

SANDRA K. ORLOW (DOB 10/18/53) - Vice President, Assistant Secretary - Vice
President and Assistant Secretary of the Manager and Distributor since 1988.
Corporate Legal Assistant, Omni Exploration (oil and gas investment) prior to
1983.

KATHRYN L. STANTON (DOB 11/19/58) - Vice President, Assistant Secretary - Vice
President and Assistant Secretary of SEI Corporation, the Manager and
Distributor since 1994. Associate, Morgan, Lewis & Bockius LLP (law firm), 
1989-94.

KEVIN P. ROBINS (DOB 04/15/61) -  Vice President, Assistant Secretary - Senior
Vice President and General Counsel of SEI and the Distributor since 1994. Vice
President and Assistant Secretary of the Manager and Distributor 1992-94.
Associate, Morgan, Lewis & Bockius LLP (law firm) prior to 1992.

JEFFREY A. COHEN (DOB 04/22/61) - Controller, Assistant Secretary - Director of
Funds Accounting of SEI since 1991. Audit Manager of Price Waterhouse 1988-1991.

TODD CIPPERMAN (DOB 02/14/66) - Vice President and Assistant Secretary - Vice 
President and Assistant Secretary of SEI, the Administrator and Distributor 
since May, 1995, Associate, Dewey Ballantine (law firm) 1994-1995, Associate, 
Winston & Strawn (law firm) 1991-1994.

JOSEPH M. LYDON (DOB 09/27/59) - Vice President and Assistant Secretary - 
Director of Business Administration, SEI Corporation since April, 1995; Vice 
President of Fund Group, Vice President of the Advisor - Dreman Value 
Management, LP, President of Dreman Financial Services, Inc. from 1989 to 1995.
    
RICHARD W. GRANT (DOB 10/25/45) - Secretary - 2000 One Logan Square,
Philadelphia, PA 19103, Partner, Morgan, Lewis & Bockius LLP, counsel to the
Trust, Manager and Distributor, since 1989.

JOHN H. GRADY, JR. (DOB 06/01/61) - Assistant Secretary - 1800 M Street, N.W.,
Washington, D.C. 20036, Partner (since 1995) and Associate (1993-1995), Morgan,
Lewis & Bockius LLP, counsel to the Trust, Manager and Distributor. Associate,
Ropes & Gray (law firm), 1988 to 1993.

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

                                      S-25
<PAGE>
 
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 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.

                                      S-26
<PAGE>
 
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, the  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.

REINSTATEMENT PRIVILEGE: A shareholder who has redeemed shares of any of the
Funds has a one-time right to reinvest the redemption proceeds in shares of the
Fund at their net asset value as of the time of reinvestment.  Such a
reinvestment must be made within 30 days of the redemption and is limited to the
amount of the redemption proceeds.  Although redemptions and repurchases of
shares are taxable events, a reinvestment within such 30-day period in the same
Fund is considered a "wash sale" and results in the inability to recognize
currently all or a portion of a loss realized on the original redemption for
federal income tax purposes.  The investor must notify the Transfer Agent at the
time the trade is placed that the transaction is a reinvestment.

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 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.

                                      S-27

<PAGE>
 
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, 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

                                      S-28

<PAGE>
 
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 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.

                                      S-29

<PAGE>
 
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.


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 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      

                                      S-30
<PAGE>
 
     
Following are the Trust's audited seed capital financial statements dated
February 16, 1996.      

    
     

                                      S-31
<PAGE>
 
                       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>
 
SEI ASSET ALLOCATION TRUST

Statement of Assets and Liabilities
February 16, 1996

Diversified Growth Fund

<TABLE>   
<CAPTION>
Assets:
<S>                                                                          <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.
<PAGE>
 
SEI ASSET ALLOCATION TRUST

Statement of Assets and Liabilities
February 16, 1996

Diversified U.S. Stock Fund

<TABLE>   
<CAPTION>
 
Assets:
<S>                                                                          <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.
<PAGE>
 
SEI ASSET ALLOCATION TRUST

Statement of Assets and Liabilities
February 16, 1996

Diversified Conservative Fund

<TABLE>   
<S>                                                                      <C>
Assets:
  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.
<PAGE>
 
SEI ASSET ALLOCATION TRUST

Statement of Assets and Liabilities
February 16, 1996

Diversified Moderate Growth Fund

<TABLE>   
<S>                                                                      <C>
Assets:
  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.
<PAGE>
 
SEI ASSET ALLOCATION TRUST

Statement of Assets and Liabilities
February 16, 1996

Diversified Conservative Income Fund

<TABLE>   
<S>                                                                     <C>
Assets:
  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.
<PAGE>
 
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.     

   
    
<PAGE>
 
   
    

   
SEI ASSET ALLOCATION TRUST    

   
Notes to Financial Statements (continued)
February 16, 1996    

   
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
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.
<PAGE>
 
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.
<PAGE>
 
                                       
                                   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 clas 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.      

    
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      

                                      S-32
<PAGE>
 
    
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. 
                                                                                

    
LONG-TERM RATINGS DEFINITIONS      

    
INVESTMENT GRADE      
- ----------------

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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.      

    
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.      

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     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 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      

                                      S-35
<PAGE>
 
    
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 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."      

                                      S-36
<PAGE>
 
         
     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.      

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