SEI INSTITUTIONAL MANAGED TRUST
485BPOS, 1998-01-28
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<PAGE>
   
    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JANUARY 28, 1998
    
                                                              FILE NO. 33-9504
                                                              FILE NO. 811-4878
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                            ------------------------
 
                                   FORM N-1A
 
                        REGISTRATION STATEMENT UNDER THE
 
   
                            SECURITIES ACT OF 1933             / /
                        POST-EFFECTIVE AMENDMENT NO. 28      /X/
                                      AND
                        REGISTRATION STATEMENT UNDER THE
                        INVESTMENT COMPANY ACT OF 1940       / /
                               AMENDMENT NO. 30               /X/
    
 
                            ------------------------
 
                        SEI INSTITUTIONAL MANAGED TRUST
 
               (Exact Name of Registrant as Specified in Charter)
 
                               C/O CT CORPORATION
                                2 Oliver Street
                          Boston, Massachusetts 02109
              (Address of Principal Executive Offices) (Zip Code)
       Registrant's Telephone Number, including Area Code: (800) 342-5734
 
                                  DAVID G. LEE
                          c/o SEI Investments Company
                            Oaks, Pennsylvania 19456
                    (Name and Address of Agent for Service)
 
                                   COPIES TO:
 
<TABLE>
          <S>                                        <C>
          Richard W. Grant, Esq.                     John H. Grady, Jr., Esq.
          Morgan Lewis & Bockius LLP                 Morgan Lewis & Bockius LLP
          2000 One Logan Square                      1800 M Street, N.W.
          Philadelphia, Pennsylvania 19103           Washington, D.C. 20036
</TABLE>
 
                            ------------------------
 
   Title of Securities Being Registered . . . . . . . . . . . . . . Units of
                              Beneficial Interest
 
    It is proposed that this filing become effective (check appropriate box)
 
   
<TABLE>
<C>        <S>
   /X/     immediately upon filing pursuant to paragraph (b)
   / /     on [date] pursuant to paragraph (b)
   / /     60 days after filing pursuant to paragraph (a)
   / /     75 days after filing pursuant to paragraph (a)
   / /     on [date] pursuant to paragraph (a) of Rule 485
</TABLE>
    
 
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<PAGE>
                        SEI INSTITUTIONAL MANAGED TRUST
                             CROSS REFERENCE SHEET
 
   
<TABLE>
<CAPTION>
N-1A ITEM NO.                                                                       LOCATION
- --------------------------------------------------------------  -------------------------------------------------
<S>          <C>                                                <C>
 
PART A--
Item 1.      Cover Page.......................................  Cover Page
Item 2.      Synopsis.........................................  Annual Operating Expenses
Item 3.      Condensed Financial Information..................                          *
Item 4.      General Description of Registrant................  The Trust; Investment Objectives and Policies;
                                                                  General Investment Policies; Description of
                                                                  Permitted Investments and Risk Factors
Item 5.      Management of the Fund...........................  General Information--Trustees of the Trust; The
                                                                  Adviser; The Sub-Advisers; The Manager
Item 6.      Capital Stock & Other Securities.................  General Information--Voting Rights, Shareholder
                                                                  Inquiries, Dividends; Taxes
Item 7.      Purchase of Securities Being Offered.............  Purchase and Redemption of Shares; Distribution
                                                                  and Shareholder Servicing
Item 8.      Redemption or Repurchase.........................  Purchase and Redemption of Shares
Item 9.      Pending Legal Proceedings........................                          *
 
PART B--
 
Item 10.     Cover Page.......................................  Cover Page
Item 11.     Table of Contents................................  Table of Contents
Item 12.     General Information & History....................  The Trust
Item 13.     Investment Objectives & Policies.................  Investment Objectives and Policies; Investment
                                                                  Limitations; Securities Lending
Item 14.     Management of the Registrant.....................  Trustees and Officers of the Trust (Prospectus);
                                                                  The Manager
Item 15.     Control Persons & Principal Holders of
               Securities.....................................  Trustees and Officers of the Trust (Prospectus)
Item 16.     Investment Advisory & Other Services.............  The Adviser and Sub-Advisers; The Manager;
                                                                  Distribution and Shareholder Servicing
Item 17.     Brokerage Allocation.............................  Portfolio Transactions
Item 18.     Capital Stock & Other Securities.................  Description of Shares
Item 19.     Purchase, Redemption, & Pricing of Securities....  Purchase and Redemption of Shares Being Offered
                                                                  (Prospectus); Determination of Net Asset Value
Item 20.     Tax Status.......................................  Taxes (Prospectus); Taxes
Item 21.     Underwriters.....................................  Distribution and Shareholder Servicing
Item 22.     Calculation of Yield Quotation...................  Performance
</TABLE>
    
 
                                      (i)
<PAGE>
<TABLE>
<CAPTION>
N-1A ITEM NO.                                                                       LOCATION
- --------------------------------------------------------------  -------------------------------------------------
<S>          <C>                                                <C>
Item 23.     Financial Statements.............................                          *
</TABLE>
 
                                     PART C
 
    Information required to be included in Part C is set forth under the
appropriate item, so numbered, in Part C of this Registration Statement.
 
- ------------------------
 
 *  Not Applicable
 
                                      (ii)
<PAGE>
   
PROSPECTUS
JANUARY 31, 1998
    
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SMALL CAP GROWTH PORTFOLIO
 
- --------------------------------------------------------------------------------
 
   
This Prospectus concisely sets forth information about the above-referenced
portfolio that an investor needs to know before investing. Please read this
Prospectus carefully, and keep it on file for future reference. It contains
information that can help you decide if the Portfolio's investment goals match
your own.
    
 
   
A Statement of Additional Information dated January 31, 1998, has been filed
with the Securities and Exchange Commission (the "SEC") and is available upon
request and without charge by writing the Distributor, SEI Investments
Distribution Co., Oaks, Pennsylvania 19456, or by calling 1-800-437-6016. The
Statement of Additional Information is incorporated by reference into this
Prospectus.
    
 
   
SEI Institutional Managed Trust (the "Trust") is an open-end management
investment company, certain classes of which offer shareholders a convenient
means of investing their funds in one or more professionally managed diversified
portfolios of securities. The Small Cap Growth Portfolio, an investment
portfolio of the Trust, offers two classes of shares, Class A shares and Class D
shares. Class D shares differ from Class A shares primarily in the imposition of
sales charges and the allocation of certain distribution expenses and transfer
agent fees. Class D shares are available through SEI Investments Distribution
Co. (the Trust's distributor) and through participating broker-dealers,
financial institutions and other organizations. This Prospectus offers the Class
D shares of the Small Cap Growth Portfolio (the "Portfolio").
    
 
- --------------------------------------------------------------------------------
 
   
 THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION, NOR HAS THE SECURITIES AND EXCHANGE 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 SHARES INVOLVES RISK, INCLUDING POSSIBLE
 LOSS OF THE PRINCIPAL AMOUNT INVESTED.
<PAGE>
HOW TO READ THIS PROSPECTUS ____________________________________________________
 
This Prospectus gives you information that you should know about the Portfolio
before investing. Brief descriptions are also provided throughout the Prospectus
to better explain certain key points. To find these helpful guides, look for
this symbol:
FUND HIGHLIGHTS
             ___________________________________________________________________
 
The following summary provides basic information about the Class D shares of the
Trust's Small Cap Growth Portfolio. This summary is qualified in its entirety by
reference to the more detailed information provided elsewhere in this Prospectus
and in the Statement of Additional Information.
 
INVESTMENT OBJECTIVE AND POLICIES
   
                     Below are the investment objective and policies for the
                     Portfolio. For more information, see "Investment Objective
                     and Policies," "General Investment Policies," "General
                     Investment Policies and Risk Factors" and "Description of
                     Permitted Investments and Risk
                     Factors." There can be no
                     assurance that the Portfolio
                     will achieve its investment
                     objective.
    
SMALL CAP GROWTH PORTFOLIO
                     The Small Cap Growth Portfolio
                     seeks to provide long-term
                     capital appreciation by
                     investing primarily in equity
                     securities of smaller companies
                     that the advisers believe are in
                     an early stage or transitional
                     point in their development and
                     have demonstrated or have the
                     potential for above average
                     capital growth.
 
UNDERSTANDING RISK
   
                     Shares of the Portfolio, like
                     shares of any mutual fund, will
                     fluctuate in value and when you
                     sell your shares, they may be
                     worth more or less than what you
                     paid for them. The Portfolio may
                     invest in equity securities that
                     are affected by market and
                     economic factors, and may invest
                     in fixed income securities that
                     tend to vary inversely with
                     interest rates and may be
                     affected by other market and
                     economic factors as well, which
                     may cause these securities to
                     fluctuate in value. In addition,
                     the Portfolio will invest in
                     equity securities of smaller
                     companies, which involve greater
                     risk than is customarily
                     associated with investments in
                     larger, more established
                     companies. See "Investment
                     Objective and Policies,"
                     "General Investment Policies and
                     Risk Factors" and "Description
                     of Permitted Investments and
                     Risk Factors."
    
 
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TABLE OF
CONTENTS
 
   
<TABLE>
<S>                                                 <C>
FUND HIGHLIGHTS...................................     2
SHAREHOLDER TRANSACTION EXPENSES..................     4
ANNUAL OPERATING EXPENSES.........................     4
FINANCIAL HIGHLIGHTS..............................     5
YOUR ACCOUNT AND DOING BUSINESS WITH US...........     6
INVESTMENT OBJECTIVE AND POLICIES.................     8
GENERAL INVESTMENT POLICIES AND RISK FACTORS......     9
INVESTMENT LIMITATIONS............................    10
THE MANAGER AND SHAREHOLDER SERVICING AGENT.......    11
THE ADVISER.......................................    11
THE SUB-ADVISERS..................................    13
DISTRIBUTION......................................    14
PERFORMANCE.......................................    15
TAXES.............................................    16
ADDITIONAL INFORMATION ABOUT DOING BUSINESS WITH
  US..............................................    18
GENERAL INFORMATION...............................    22
DESCRIPTION OF PERMITTED INVESTMENTS AND RISK
  FACTORS.........................................    24
</TABLE>
    
 
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                                                                               2
<PAGE>
MANAGEMENT PROFILE
   
SEI INVESTMENTS MANAGEMENT CORPORATION ("SIMC")
serves as the investment adviser to the Small Cap
Growth Portfolio. SEI Fund Management serves as the
manager of the Trust. The investment adviser and
investment sub-advisers to the Portfolio are referred
to collectively as the "advisers." DST Systems, Inc.,
acts as transfer agent (the "Transfer Agent") to the
Class D shares of the Trust. SEI Investments
Distribution Co. acts as distributor of the Trust's
shares. See "The Manager and Shareholder Servicing
Agent," "The Adviser," "The Sub-Advisers" and
"Distribution."
    
 
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INVESTMENT
PHILOSOPHY
BELIEVING THAT NO SINGLE INVESTMENT ADVISER CAN DELIVER OUTSTANDING PERFORMANCE
IN EVERY INVESTMENT CATEGORY, ONLY THOSE ADVISERS WHO HAVE DISTINGUISHED
THEMSELVES WITHIN THEIR AREAS OF SPECIALIZATION ARE SELECTED TO ADVISE OUR
MUTUAL FUNDS.
- --------------------------------------------------------------------------------
 
YOUR ACCOUNT AND DOING BUSINESS WITH US
You may open an account with just $1,000, and make additional investments with
as little as $100. Class D shares of the Portfolio are offered at net asset
value per share plus a maximum sales charge at the time of purchase of 5.00%.
Shareholders who purchase higher amounts may qualify for a reduced sales charge.
Redemptions of the Portfolio's shares are made at net asset value per share. See
"Your Account and Doing Business with Us" and "Additional Information About
Doing Business with Us."
 
DIVIDENDS
                     Substantially all of the net investment income (exclusive
                     of capital gains) is distributed in the form of dividends
                     that will be paid quarterly for the Portfolio. Any realized
                     net capital gain is distributed at least annually.
                     Distributions are paid in additional shares unless the
                     shareholder elects to take the payment in cash. See
                     "Dividends."
 
INFORMATION/SERVICE CONTACTS
                     For more information about Class D shares, call
                     1-800-437-6016.
 
                                                                               3
<PAGE>
SHAREHOLDER TRANSACTION EXPENSES (AS A PERCENTAGE OF OFFERING PRICE)     CLASS D
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                              SMALL CAP
                                                                GROWTH
                                                              PORTFOLIO
                                                              ----------
<S>                                                           <C>
Maximum Sales Charge Imposed on Purchases                       5.00%
Maximum Sales Charge Imposed on Reinvested Dividends             None
Redemption Fees (1)                                              None
</TABLE>
 
ANNUAL OPERATING EXPENSES (AS A PERCENTAGE OF AVERAGE NET ASSETS)
- --------------------------------------------------------------------------------
 
   
<TABLE>
<S>                                                           <C>
Management/Advisory Fees                                        1.00%
12b-1 Fees (AFTER FEE WAIVER) (2)                                .25%
Other Expenses                                                   .21%
- ------------------------------------------------------------------------
Total Operating Expense (AFTER FEE WAIVER) (3)                  1.46%
- ------------------------------------------------------------------------
</TABLE>
    
 
(1) A CHARGE, CURRENTLY $10.00, IS IMPOSED ON WIRES OF REDEMPTION PROCEEDS OF
    THE PORTFOLIOS' CLASS D SHARES.
 
(2) THE DISTRIBUTOR HAS WAIVED, ON A VOLUNTARY BASIS, A PORTION OF ITS 12B-1
    FEE, AND THE 12B-1 FEES SHOWN REFLECT THIS WAIVER. THE DISTRIBUTOR RESERVES
    THE RIGHT TO TERMINATE ITS WAIVER AT ANY TIME IN ITS SOLE DISCRETION. ABSENT
    SUCH WAIVER, 12B-1 FEES WOULD BE .30% FOR THE PORTFOLIO.
 
   
(3) ABSENT THESE FEE WAIVERS, TOTAL OPERATING EXPENSES FOR CLASS D SHARES WOULD
    BE: SMALL CAP GROWTH PORTFOLIO, 1.51%. ADDITIONAL INFORMATION MAY BE FOUND
    UNDER "THE ADVISER," "THE SUB-ADVISERS" AND "THE MANAGER AND SHAREHOLDER
    SERVICING AGENT."
    
 
EXAMPLE
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                                       3      5     10
                                                              1 YR.  YRS.   YRS.   YRS.
                                                              -----  -----  -----  -----
<S>                                                           <C>    <C>    <C>    <C>
An investor in a Portfolio would pay the following expenses
 on a $1,000 investment assuming (1) the imposition of the
 maximum sales charge; (2) a 5% annual return and (3)
 redemption at the end of each time period:
  Small Cap Growth Portfolio                                  $ 64   $ 94   $126   $216
- ----------------------------------------------------------------------------------------
</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 TABLE 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 THE PORTFOLIO. THE INFORMATION SET FORTH
IN THE FOREGOING TABLE AND EXAMPLE RELATES ONLY TO THE CLASS D SHARES. THE
PORTFOLIO ALSO OFFERS CLASS A SHARES, WHICH ARE SUBJECT TO THE SAME EXPENSES,
EXCEPT THAT THERE ARE NO SALES CHARGES, DIFFERENT DISTRIBUTION COSTS AND NO
TRANSFER AGENT COSTS. A PERSON WHO PURCHASES SHARES THROUGH AN ACCOUNT WITH A
FINANCIAL INSTITUTION MAY BE CHARGED SEPARATE FEES BY THAT INSTITUTION.
ADDITIONAL INFORMATION MAY BE FOUND UNDER "THE MANAGER AND SHAREHOLDER SERVICING
AGENT," "THE ADVISER," "THE SUB-ADVISERS" AND "DISTRIBUTION."
 
THE RULES OF THE SECURITIES AND EXCHANGE COMMISSION REQUIRE THAT THE MAXIMUM
SALES CHARGE BE REFLECTED IN THE ABOVE TABLE. HOWEVER, CERTAIN INVESTORS MAY
QUALIFY FOR REDUCED SALES CHARGES. SEE "PURCHASE OF SHARES." LONG-TERM
SHAREHOLDERS MAY PAY MORE THAN THE ECONOMIC EQUIVALENT OF THE MAXIMUM FRONT-END
SALES CHARGE OTHERWISE PERMITTED BY THE CONDUCT RULES OF THE NATIONAL
ASSOCIATION OF SECURITIES DEALERS, INC.
 
                                                                               4
<PAGE>
FINANCIAL HIGHLIGHTS
                  ______________________________________________________________
 
   
The following information has been derived from the financial statements audited
by Price Waterhouse LLP, the Trust's independent accountants, as indicated in
their report dated November 25, 1997, the Trust's financial statements as of
September 30, 1997, incorporated by reference into the Trust's Statement of
Additional Information. The Trust's financial statements and additional
performance information are set forth in the 1997 Annual Report to Shareholders,
which is available upon request and without charge by calling 1-800-437-6016.
This table should be read in conjunction with the Trust's financial statements
and notes thereto.
    
 
FOR A CLASS D SHARE OUTSTANDING THROUGHOUT THE PERIOD
   
<TABLE>
<CAPTION>
                    NET ASSET       NET       NET REALIZED AND   DIVIDENDS
                      VALUE     INVESTMENT       UNREALIZED       FROM NET    DISTRIBUTIONS   NET ASSET               NET ASSETS
                    BEGINNING     INCOME       GAINS (LOSSES)    INVESTMENT   FROM REALIZED   VALUE END    TOTAL        END OF
                    OF PERIOD     (LOSS)       ON SECURITIES       INCOME     CAPITAL GAINS   OF PERIOD   RETURN*    PERIOD (000)
- ---------------------------------------------------------------------------------------------------------------------------------
<S>                 <C>         <C>           <C>                <C>          <C>             <C>         <C>        <C>
- ------------------
SMALL CAP GROWTH
PORTFOLIO
- ------------------
 
CLASS D
  1997               $  20.29     $(0.11)          $ 2.66          $   --        $(3.85)       $  18.99     16.80%*    $  2,202
  1996                  19.78      (0.07)            4.24              --         (3.66)          20.29     26.01%*       1,826
  1995                  13.99      (0.09)            5.88              --            --           19.78     41.44%*         786
  1994 (1)              14.04      (0.02)           (0.03)             --            --           13.99     (3.02)%*        171
 
<CAPTION>
                                                           RATIO OF NET
                                                            INVESTMENT
                                    NET        RATIO OF       INCOME
                                 INVESTMENT    EXPENSE        (LOSS)
                     RATIO OF      INCOME     TO AVERAGE    TO AVERAGE
                     EXPENSES      (LOSS)     NET ASSETS    NET ASSETS    PORTFOLIO    AVERAGE
                    TO AVERAGE   TO AVERAGE   (EXCLUDING    (EXCLUDING    TURNOVER    COMMISSION
                    NET ASSETS   NET ASSETS    WAIVERS)      WAIVERS)       RATE        RATE+
- ------------------
<S>                 <C>          <C>          <C>          <C>            <C>        <C>
- ------------------
SMALL CAP GROWTH
PORTFOLIO
- ------------------
CLASS D
  1997                 1.46%        (0.95)%      1.46%        (0.95)%       107%      $    0.0723
  1996                 1.49%        (1.02)%      1.49%        (1.02)%       167%           0.0529
  1995                 1.50%        (1.03)%      1.55%        (1.08)%       113%              N/A
  1994 (1)             1.49%        (0.92)%      1.52%        (0.95)%        97%              N/A
</TABLE>
    
 
  * SALES CHARGE IS NOT REFLECTED IN TOTAL RETURN.
 
 (1) SMALL CAP GROWTH CLASS D SHARES WERE OFFERED BEGINNING MAY 2, 1994. ALL
    RATIOS INCLUDING TOTAL RETURN FOR THAT PERIOD HAVE BEEN ANNUALIZED.
 
  + AVERAGE COMMISSION RATE PAID PER SHARE FOR SECURITY PURCHASES AND SALES
    DURING THE PERIOD. PRESENTATION OF THE RATE IS REQUIRED FOR FISCAL YEARS
    BEGINNING AFTER SEPTEMBER 1, 1995.
 
                                                                               5
<PAGE>
YOUR ACCOUNT AND DOING BUSINESS WITH US   ______________________________________
 
   
Class D shares of the Portfolio are sold on a continuous basis and may be
purchased directly from the Trust's Distributor, SEI Investments Distribution
Co. Shares may also be purchased through financial institutions, broker-dealers,
or other organizations which have established a dealer agreement or other
arrangement with SEI Investments Distribution Co. ("Intermediaries"). For more
information about the following topics, see "Additional Information About Doing
Business with Us."
    
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HOW TO BUY, SELL
    
AND EXCHANGE
SHARES THROUGH
INTERMEDIARIES
   
                     Class D shares of the Portfolio may be purchased through
                     Intermediaries which provide various levels of shareholder
                     services to their customers. Contact your Intermediary for
                     information about the services
                     available to you and for
                     specific instructions on how to
                     buy, sell and exchange shares.
                     To allow for processing and
                     transmittal of orders to the
                     Distributor on the same day,
                     Intermediaries may impose
                     earlier cut-off times for
                     receipt of purchase orders.
                     Certain Intermediaries may
                     charge customer account fees.
                     Information concerning
                     shareholder services and any
                     charges will be provided to the
                     customer by the Intermediary.
    
 
- --------------------------------------------------------------------------------
WHAT IS AN
INTERMEDIARY?
ANY ENTITY, SUCH AS A BANK, BROKER-DEALER, OTHER FINANCIAL INSTITUTION,
ASSOCIATION OR ORGANIZATION WHICH HAS ENTERED INTO AN ARRANGEMENT WITH THE
DISTRIBUTOR TO SELL CLASS D SHARES TO ITS CUSTOMERS.
- --------------------------------------------------------------------------------
 
      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.
 
HOW TO BUY SHARES FROM THE TRANSFER AGENT
   
Application forms can be obtained by calling 1-800-437-6016.
    
OPENING AN ACCOUNT BY CHECK
   
                     You may buy Class D shares by mailing a completed
                     application and a check (or other negotiable bank
                     instrument or money order) payable to "Class D shares
                     (Small Cap Growth Portfolio)." 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. Third-Party
                     checks, credit cards, credit card checks and cash will not
                     be accepted. When purchases are made by check (including
                     certified or cashier's check), redemption proceeds will not
                     be forwarded until the check providing for the investment
                     being redeemed has cleared (which may take up to 15 days).
                     Subsequent investments may also be mailed directly to the
                     Transfer Agent.
    
                     To buy shares by Fed Wire, call toll-free 1-800-437-6016.
BY FED WIRE
AUTOMATIC INVESTMENT PLAN ("AIP")
                     You may systematically buy Class D shares 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. 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
                                                                               6
<PAGE>
                     balance requirements discussed under "Additional
                     Information About Doing Business With Us."
 
   
OTHER INFORMATION ABOUT BUYING SHARES -- SALES CHARGES
    
                     Your purchase is subject to a sales charge which varies
                     depending on the size of your purchase. The following table
                     shows the regular sales charges on Class D shares of the
                     Portfolio to a "single purchaser," together with the
                     reallowance paid to dealers and the agency commission paid
                     to brokers (collectively the "commission"):
 
<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------
 
<S>                          <C>               <C>                    <C>
                                                  SALES CHARGE AS        REALLOWANCE AND
                             SALES CHARGE AS        APPROPRIATE        BROKERAGE COMMISSION
                             A PERCENTAGE OF     PERCENTAGE OF NET       AS PERCENTAGE OF
AMOUNT OF PURCHASE            OFFERING PRICE      AMOUNT INVESTED         OFFERING PRICE
- ---------------------------------------------------------------------------------------
< $50,000                            5.00%               5.26%                   4.50%
$50,000 but < $100,000               4.50%               4.71%                   4.00%
$100,000 but < $250,000              3.50%               3.63%                   3.00%
$250,000 but < $500,000              2.50%               2.56%                   2.00%
$500,000 but < $1,000,000            2.00%               2.04%                   1.75%
$1,000,000 but < $2,000,000          1.00%               1.01%                   1.00%
$2,000,000 but < $4,000,000           .50%                .50%                    .50%
Over $4,000,000                    none                none                    none
- -----------------------------------------------------------------------------
</TABLE>
 
                           The commissions shown in the table above apply to
                     sales through Intermediaries. Under certain circumstances,
                     commissions up to the amount of the entire sales charge may
                     be re-allowed to certain Intermediaries, who might then be
                     deemed to be "underwriters" under the Securities Act of
                     1933, as amended.
RIGHT OF ACCUMULATION
                     A Right of Accumulation allows you, under certain
                     circumstances, to combine your current purchase with the
                     current market value of previously purchased shares of the
                     Portfolio and Class D shares of other portfolios ("Eligible
                     Portfolios") in order to obtain a reduced sales charge.
LETTER OF INTENT
                     A Letter of Intent allows you, under certain circumstances,
                     to aggregate anticipated purchases over a 13-month period
                     to obtain a reduced sales charge.
SALES CHARGE WAIVER
                     Certain shareholders may qualify for a sales charge waiver.
                     To determine whether or not you qualify for a sales charge
                     waiver see "Additional Information About Doing Business
                     with Us." Shareholders who qualify for a sales charge
                     waiver must notify the Transfer Agent before purchasing
                     shares.
 
                                                                               7
<PAGE>
HOW TO SELL SHARES THROUGH THE TRANSFER AGENT
                     To sell your shares, a written request for redemption in
                     good order must be received by the Transfer Agent (or its
                     authorized agent). Valid written redemption requests will
                     be effective on receipt. All shareholders of record must
                     sign the redemption request.
BY MAIL
                     For information about the proper form of redemption
                     requests, call 1-800-437-6016. You may also have the
                     proceeds mailed to an address of record or mailed (or sent
                     by ACH) to a commercial bank
                     account previously designated on
                     the Account Application or
                     specified by written instruction
                     to the Transfer Agent.
 
                           There is no charge for
                     having redemption requests
                     mailed to a designated bank
                     account.
BY TELEPHONE
                     You may sell your shares by
                     telephone if you previously
                     elected that option on the
                     Account Application. You may
                     have the proceeds mailed to the
                     address of record, wired or sent
                     by ACH to a commercial bank
                     account previously designated on
                     the Account Application. Under
                     most circumstances, payments
                     will be transmitted on the next
                     Business Day following receipt of a valid telephone request
                     for redemption. Wire redemption requests may be made by
                     calling 1-800-437-6016. A wire redemption charge (presently
                     $10.00) will be deducted from the amount of the redemption.
 
- --------------------------------------------------------------------------------
WHAT IS A
SIGNATURE
GUARANTEE?
A SIGNATURE GUARANTEE VERIFIES THE AUTHENTICITY OF YOUR SIGNATURE AND MAY BE
OBTAINED FROM ANY OF THE FOLLOWING: BANKS, BROKERS, DEALERS, CERTAIN CREDIT
UNIONS, SECURITIES EXCHANGE OR ASSOCIATION, CLEARING AGENCY OR SAVINGS
ASSOCIATION. A NOTARY PUBLIC CANNOT PROVIDE A SIGNATURE GUARANTEE.
- --------------------------------------------------------------------------------
 
SYSTEMATIC WITHDRAWAL PLAN ("SWP")
You may establish a systematic withdrawal plan for an 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 with
a minimum redemption amount of $50.
 
INVESTMENT OBJECTIVE
AND POLICIES
         _______________________________________________________________________
SMALL CAP GROWTH PORTFOLIO
                     The investment objective of the
                     Small Cap Growth Portfolio is
                     long-term capital appreciation.
                     There can be no assurance that
                     the Portfolio will achieve its
                     investment objective.
 
   
                           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 opinion
                     of the advisers, are in an early
                     stage or transitional point in
                     their development and have
                     demonstrated or have the
                     potential for above average
                     capital growth.
    
 
- --------------------------------------------------------------------------------
WHAT ARE INVESTMENT
OBJECTIVES AND
POLICIES?
THE PORTFOLIO'S INVESTMENT OBJECTIVE IS A STATEMENT OF WHAT IT SEEKS TO ACHIEVE.
IT IS IMPORTANT TO MAKE SURE THAT THE INVESTMENT OBJECTIVE MATCHES YOUR OWN
FINANCIAL NEEDS AND CIRCUMSTANCES. THE INVESTMENT POLICIES SECTION SPELLS OUT
THE TYPES OF SECURITIES IN WHICH THE PORTFOLIO INVESTS.
- --------------------------------------------------------------------------------
 
                                                                               8
<PAGE>
   
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.
    
 
   
      For temporary defensive purposes, the Portfolio may invest all or a
portion of its assets in common stocks of larger, more established companies or
in investment grade fixed income securities. The Portfolio may also borrow
money, invest in Real Estate Investment Trusts ("REITs")when-issued and
delayed-delivery securities and shares of other investment companies, and lend
its securities to qualified buyers.
    
 
   
      The Portfolio's annual turnover rate may exceed 100%. Such a turnover rate
may result in higher transaction costs and may result in additional taxes for
shareholders.
    
 
   
GENERAL INVESTMENT
POLICIES AND
RISK FACTORS
    
          ______________________________________________________________________
 
EQUITY SECURITIES
                     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. The Portfolio will invest in
                     common stocks listed on registered exchanges or actively
                     traded in the over-the-counter market.
 
   
                           Investments in equity securities in general are
                     subject to market risks that may cause their prices to
                     fluctuate over time. The value of convertible equity
                     securities is also affected by prevailing interest rates,
                     the credit quality of the issuer and any call provision.
                     Fluctuations in the value of equity securities in which the
                     Portfolio invests will cause the net asset value of the
                     Portfolio to fluctuate.
    
 
   
                           Investments in small capitalization companies
                     involves greater risk than is customarily associated with
                     larger, more established companies due to the greater
                     business risks of small size, limited markets and financial
                     resources, narrow product lines and the frequent lack of
                     depth of management. The securities of small companies are
                     often traded over-the-counter, and may not be traded in
                     volumes typical of securities traded on a national
                     securities exchange. Consequently, the securities of
                     smaller companies may have limited market stability and may
                     be subject to more abrupt or erratic market movements than
                     securities of larger, more established companies or the
                     market averages in general.
    
 
   
FIXED INCOME SECURITIES
    
   
                     Fixed income securities are debt obligations issued by
                     corporations, municipalities and other borrowers. The
                     market value of the Portfolio's fixed income investments
                     will 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. Securities
                     with longer maturities are subject to greater fluctuations
                     in value than securities with shorter maturities. Changes
                     by an NRSRO in the rating of any fixed income security and
                     in the ability of an issuer to make payments of interest
                     and principal also affect the value of these investments.
                     Changes in the value of a Portfolio's securities will not
                     affect cash income derived from these securities but will
                     affect the Portfolio's net asset value.
    
 
                                                                               9
<PAGE>
   
                           Investment grade fixed income securities are
                     securities that are rated at least BBB by Standard & Poor's
                     Corporation ("S&P") or Baa by Moody's Investors Service,
                     Inc. ("Moody's"). Fixed income securities rated BBB by S&P
                     or Baa by Moody's lack outstanding investment
                     characteristics, and have speculative characteristics as
                     well.
    
 
                                                                              10
<PAGE>
OPTIONS AND FUTURES
   
                     The Portfolio may purchase or write 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.
    
TEMPORARY DEFENSIVE
INVESTMENTS
                     In order to meet liquidity needs, or for temporary
                     defensive purposes, the Portfolio may invest up to 100% of
                     its assets in cash and money market securities. To the
                     extent the Portfolio is engaged in temporary defensive
                     investing, the Portfolio will not be pursuing its
                     investment objective.
U.S. DOLLAR DENOMINATED
SECURITIES OF FOREIGN ISSUERS
   
                     The Portfolio may invest in U.S. dollar denominated
                     securities of foreign issuers, including American
                     Depositary Receipts, that are traded on registered
                     exchanges or listed on NASDAQ.
    
 
   
                           For additional information regarding the Portfolio's
                     permitted investments, see "Description of Permitted
                     Investments and Risk Factors" in this Prospectus and
                     "Description of Permitted Investments" in the Statement of
                     Additional Information. For a description of the above
                     ratings, see "Description of Ratings" in the Statement of
                     Additional Information.
    
 
INVESTMENT
LIMITATIONS
        ________________________________________________________________________
 
                     The investment objective and certain of the investment
                     limitations are fundamental policies of the Portfolio.
                     Fundamental policies cannot be changed with respect to the
                     Trust or the Portfolio without the consent of the holders
                     of a majority of the Trust's or the Portfolio's outstanding
                     shares.
 
                     NO PORTFOLIO MAY:
 
                     1. With respect to 75% of its assets, (i) purchase the
                       securities of any issuer (except securities issued or
                       guaranteed by the United States Government, its agencies
                       or instrumentalities) if, as a result, more than 5% of
                       its total assets would be invested in the securities of
                       such issuer; or (ii) acquire more than 10% of the
                       outstanding voting securities of any one issuer.
 
                     2. Purchase any securities which would cause more than 25%
                       of the total assets of the Portfolio to be invested in
                       the securities of one or more issuers conducting their
                       principal business activities in the same industry,
                       provided that this limitation does not apply to
                       investments in obligations issued or guaranteed by the
                       United States Government, its agencies or
                       instrumentalities.
 
   
                     3. Borrow money in an amount exeeding 33 1/3% of the value
                       of its total assets, provided that, for purposes of this
                       limitation, investment strategies which either obligate
                       the Portfolio to purchase securities or require the
                       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
    
 
                                                                              11
<PAGE>
   
                       paid on such borrowings will reduce income; and (ii)
                       asset coverage of at least 300% is required.
    
 
                     The foregoing percentage limitations will apply at the time
                     of the purchase of a security. Additional fundamental and
                     non-fundamental investment limitations are set forth in the
                     Trust's Statement of Additional Information.
 
THE MANAGER
AND SHAREHOLDER
SERVICING AGENT
             ___________________________________________________________________
 
                     SEI Fund Management ("SEI Management") provides the Trust
                     with overall management services, regulatory reporting, all
                     necessary office space, equipment, personnel and
                     facilities, and acts as shareholder servicing agent for the
                     Portfolio's Class D shares.
 
                           For its management services, SEI Management is
                     entitled to a fee, which is calculated daily and paid
                     monthly, at an annual rate of .35% of the average daily net
                     assets of the Small Cap Growth Portfolio. In addition, SEI
                     Management has voluntarily agreed to waive a portion of its
                     fees in order to limit the operating expenses of the
                     Portfolio's Class D shares on an annualized basis. Any such
                     waivers are voluntary and may be terminated at any time in
                     SEI Management's sole discretion.
 
   
                           For the fiscal year ended September 30, 1997, the
                     Portfolio paid management fees (based on its average daily
                     net assets after fee waivers) of .35%.
    
 
   
                           The Trust and DST Systems, Inc., 1004 Baltimore St.,
                     Kansas City, Missouri 64105,("DST") have entered into a
                     separate transfer agent agreement with respect to the Class
                     D shares of the Trust. Under this agreement, DST acts as
                     the transfer agent and dividend disbursing agent (the
                     "Transfer Agent") for the Class D shares of the Trust.
    
THE ADVISER
         _______________________________________________________________________
 
   
SEI INVESTMENTS MANAGEMENT CORPORATION
    
   
                     SEI Investments Management Corporation ("SIMC") serves as
                     investment adviser to the Portfolio. SIMC is a wholly-owned
                     subsidiary of SEI Investments Company ("SEI Investments"),
                     a financial services company. The principal business
                     address of SIMC and SEI Investments is Oaks, Pennsylvania
                     19456. SEI Investments was founded in 1968 and is a leading
                     provider of investment solutions to banks, institutional
                     investors, investment advisers and insurance companies.
                     Affiliates of SIMC have provided consulting advice to
                     institutional investors for more than 20 years, including
                     advice regarding selection and evaluation of investment
                     advisers. SIMC currently serves as manager or administrator
                     to more than 46 investment companies, including more than
                     345 portfolios, which investment companies have more than
                     $99.9 billion in assets as of September 30, 1997.
    
 
   
                           SIMC acts as the investment adviser to the Portfolio
                     and operates as a "manager of managers." As Adviser, SIMC
                     oversees the investment advisory services provided to the
                     Portfolio and manages the cash portion of the Portfolio's
                     assets. Pursuant to separate sub-advisory agreements with
                     SIMC, and under the supervision of SIMC and the Board of
    
 
                                                                              12
<PAGE>
   
                     Trustees, the sub-advisers are responsible for the
                     day-to-day investment management of all or a discrete
                     portion of the assets of the Portfolio. The sub-advisers
                     are selected based primarily upon the research and
                     recommendations of SIMC, which evaluates quantitatively and
                     qualitatively each sub-adviser's skills and investment
                     results in managing assets for specific asset classes,
                     investment styles and strategies. Subject to Board review
                     SIMC allocates and, when appropriate, reallocates the
                     Portfolio's assets among sub-advisers, monitors and
                     evaluates sub-adviser performance, and oversees sub-adviser
                     compliance with the Portfolio's investment objective,
                     policies and restrictions. SIMC HAS THE ULTIMATE
                     RESPONSIBILITY FOR THE INVESTMENT PERFORMANCE OF THE
                     PORTFOLIO DUE TO ITS RESPONSIBILITY TO OVERSEE SUB-ADVISERS
                     AND RECOMMEND THEIR HIRING, TERMINATION AND REPLACEMENT.
    
 
   
                           For these advisory services SIMC is entitled to a
                     fee, which is calculated daily and paid monthly, at an
                     annual rate of .65% of the Small Cap Growth Portfolio's
                     average daily net assets.
    
 
   
                           For the fiscal year ended September 30, 1997, SIMC
                     received an advisory fee of .65% of the Small Cap Growth
                     Portfolio's average daily net assets. SIMC paid the sub-
                     advisers a fee based on a percentage of the average monthly
                     market value of the assets managed by each sub-adviser out
                     of its advisory fee.
    
 
   
                           SIMC and the Trust have obtained an exemptive
                     order from the Securities and
                     Exchange Commission (the "SEC")
                     that permits SIMC, with the
                     approval of the Trust's Board of
                     Trustees, to retain sub-advisers
                     unaffiliated with SIMC for the
                     Portfolio without submitting the
                     sub-advisory agreements to a
                     vote of the Portfolio's
                     shareholders. The exemptive
                     relief permits the disclosure of
                     only the aggregate amount
                     payable by SIMC under all such
                     sub-advisory agreements. The
                     Portfolio will notify
                     shareholders in the event of any
                     addition or change in the
                     identity of its sub-advisers.
    
 
- --------------------------------------------------------------------------------
INVESTMENT
ADVISER & SUB-ADVISERS
THE PORTFOLIO'S ADVISERS MANAGE THE INVESTMENT ACTIVITIES AND ARE RESPONSIBLE
FOR THE PERFORMANCE OF THE PORTFOLIO. THE SUB-ADVISERS CONDUCT INVESTMENT
RESEARCH, EXECUTE INVESTMENT STRATEGIES BASED ON AN ASSESSMENT OF ECONOMIC AND
MARKET CONDITIONS, AND DETERMINE WHICH SECURITIES TO BUY, HOLD OR SELL.
- --------------------------------------------------------------------------------
 
                                                                              13
<PAGE>
THE SUB-ADVISERS
               _________________________________________________________________
FIRST OF AMERICA INVESTMENT CORPORATION
   
                     First of America Investment Corporation ("First America")
                     serves as sub-adviser to a portion of the assets of the
                     Small Cap Growth Portfolio. First America is a Michigan
                     Corporation that is a wholly-owned subsidiary of First
                     America Bank - Michigan, N.A., a national banking
                     association, which is in turn a wholly-owned subsidiary of
                     First America Bank Corporation, a registered bank holding
                     company. First America is registered as an investment
                     adviser under the Investment Advisers Act of 1940. First
                     America, together with its predecessor, has been engaged in
                     the investment advisory business since 1932. First
                     America's principal business address is 303 North Rose
                     Street, Suite 500, Kalamazoo, Michigan 49007. As of
                     September 30, 1997, First America had approximately $16.8
                     billion in assets under management. First America's clients
                     include mutual funds, trust funds, and individually managed
                     institutional and individual accounts.
    
 
   
                           Mr. Roger Stamper, CFA, has primary responsibility
                     for First America's portion of the Small Cap Growth
                     Portfolio. Mr. Stamper is a Managing Director of First
                     America, and has been with First America since 1988.
    
 
FURMAN SELZ CAPITAL MANAGEMENT LLC
   
                     Furman Selz Capital Management LLC ("Furman Selz") serves
                     as sub-adviser to a portion of the assets of the Small Cap
                     Growth Portfolio. Furman Selz, a Delaware limited liability
                     company whose predecessor was formed in 1977, is a
                     registered investment adviser that managed approximately
                     $10.2 billion in assets as of September 30, 1997. The
                     ultimate parent of Furman Selz is ING Groep N.V., a Dutch
                     financial services company. Furman Selz's principal
                     business address is 230 Park Avenue, New York, NY 10169.
    
 
   
                           Matthew S. Price and David C. Campbell, Managing
                     Directors/Portfolio Managers of Furman Selz, are primarily
                     responsible for the day-to-day management and investment
                     decisions made with respect to the assets of the Portfolio.
                     Prior to joining Furman Selz, Mr. Price and Mr. Campbell
                     were Senior Portfolio Managers at Value Line Asset
                     Management.
    
 
   
NICHOLAS-APPLEGATE
    
CAPITAL
MANAGEMENT
   
                     Nicholas-Applegate Capital Management
                     ("Nicholas-Applegate") serves as a sub-adviser for a
                     portion of the assets of the Small Cap Growth Portfolio.
                     Nicholas-Applegate has operated as an investment adviser
                     which provides investment services to numerous clients,
                     including employee benefit plans, public retirement systems
                     and unions, university endowments, foundations, investment
                     companies, other institutional investors and individuals.
                     As of September 30, 1997, Nicholas-Applegate had
                     discretionary management authority with respect to
                     approximately $33 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 California limited partnership controlled
                     by Arthur E. Nicholas.
    
 
                                                                              13
<PAGE>
   
                           Nicholas-Applegate manages its portion of the Small
                     Cap Growth Portfolio's assets through its systematic-driven
                     management team under the general supervision of Mr.
                     Nicholas, founder and Chief Investment Officer of the firm.
                     The U.S. Systematic team is responsible for the day-to-day
                     management of the Portfolio's assets. The lead U.S.
                     Systematic portfolio manager is John Kane, and he is
                     assisted by six other portfolio manager/analysts for the
                     Portfolio's U.S. Systematic assets. Mr. Kane has been a
                     fund manager and investment team leader since June 1994.
                     Prior to joining Nicholas-Applegate, he had 25 years of
                     investment/economics experience with ARCO Investment
                     Management Company and General Electric Company.
    
 
WALL STREET
ASSOCIATES
   
                     Wall Street Associates ("WSA") serves as sub-adviser to a
                     portion of the assets of the 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
                     September 30, 1997, had approximately $1.4 billion in
                     assets under management. 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.
    
 
   
                           William Jeffery III, Kenneth F. McCain, and Richard
                     S. Coons, each of whom own 1/3 of WSA, has served as
                     Portfolio Managers for the portion of the Portfolio's
                     assets allocated to WSA since August, 1995. Each is a
                     principal of WSA and, together, they have 81 years of
                     investment management experience.
    
DISTRIBUTION
         _______________________________________________________________________
 
   
                     SEI Investments Distribution Co. (the "Distributor"), a
                     wholly-owned subsidiary of SEI Investments, serves as the
                     Portfolio's distributor pursuant to a distribution
                     agreement (the "Distribution Agreement") with the Trust.
                     The Trust has adopted a distribution plan for its Class D
                     shares (the "Class D Plan") pursuant to Rule 12b-1 under
                     the Investment Company Act of 1940 (the "1940 Act"). The
                     Portfolio has adopted a shareholder servicing plan for its
                     Class A shares (the "Class A Service Plan").
    
 
                           The Class D Plan provides for payments to the
                     Distributor at an annual rate of .30% of the Portfolio's
                     average daily net assets attributable to Class D shares.
                     This payment may be used to compensate financial
                     institutions that provide distribution-related services to
                     their customers. These payments are characterized as
                     "compensation," and are not directly tied to expenses
                     incurred by the Distributor; the payments the Distributor
                     receives during any year may therefore be higher or lower
                     than its actual expenses. These payments compensate the
                     Distributor for its services in connection with
                     distribution assistance or the provision of shareholder
                     services, and some or all of it may be used to pay
                     financial institutions and intermediaries such as banks,
                     savings and loan associations, insurance companies, and
                     investment counselors, broker-dealers (including the
                     Distributor's affiliates and subsidiaries) for services or
                     reimbursement of expenses incurred in
 
                                                                              14
<PAGE>
                     connection with distribution assistance or the provision of
                     shareholder services. If the Distributor's expenses are
                     less than its fees under the Class D Plan, the Trust will
                     still pay the full fee and the Distributor will realize a
                     profit, but the Trust will not be obligated to pay in
                     excess of the full fee, even if the Distributor's actual
                     expenses are higher. Currently, the Distributor is taking
                     this compensation payment under the Class D Plan at a rate
                     of .25% of the Portfolio's average daily net assets, on an
                     annualized basis, attributable to Class D shares.
 
                           It is possible that an institution may offer
                     different classes of shares to its customers and thus
                     receive different compensation with respect to different
                     classes. These financial institutions may also charge
                     separate fees to their customers.
 
                           The Trust may execute brokerage or other agency
                     transactions through the Distributor, for which the
                     Distributor may receive compensation.
 
                           The Distributor may, from time to time and at its own
                     expense, provide promotional incentives, in the form of
                     cash or other compensation, to certain financial
                     institutions whose representatives have sold or are
                     expected to sell significant amounts of the Portfolio's
                     shares.
PERFORMANCE
          ______________________________________________________________________
 
                     From time to time, the Portfolio 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 the Portfolio refers to the
                     annualized income generated by an investment in the
                     Portfolio 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 the Portfolio refers to the
                     average compounded rate of return to a hypothetical
                     investment, net of any sales charge imposed on Class D
                     Shares redeemed at the end of the specified period covered
                     by the total return figure, for designated time periods
                     (including but not limited to, the period from which the
                     Portfolio 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 the Portfolio may also be quoted as a dollar amount or
                     on an aggregate basis, 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.
 
                           The Portfolio 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 Portfolio may quote Morningstar, Inc., a service that
                     ranks mutual funds
 
                                                                              15
<PAGE>
                     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 Portfolio
                     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 Portfolio may also quote
                     financial and business publications and periodicals as they
                     relate to fund management, investment philosophy, and
                     investment techniques.
 
                           The Portfolio 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 the Portfolio, the performance of Class A shares
                     will normally be higher than the performance of the Class D
                     shares because of the additional distribution 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 income tax treatment of the
                     Portfolio or its shareholders. In addition, state and local
                     tax consequences of an investment in the Portfolio 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 income taxes. Additional information
                     concerning taxes is set forth in the Statement of
                     Additional Information.
TAX STATUS
OF THE PORTFOLIOS
                     The Portfolio is treated as a
                     separate entity for federal
                     income tax purposes and is not
                     combined with the Trust's other
                     portfolios. The Portfolio
                     intends to continue to qualify
                     for the special tax treatment
                     afforded regulated investment
                     companies ("RICs") under
                     Subchapter M of the Internal
                     Revenue Code of 1986, as
                     amended, so as to be relieved of
                     federal income tax on net
                     investment company taxable income (including the excess, if
                     any, of net short-term capital gains over net long-term
                     capital losses) and net capital gains (the excess of net
                     long-term capital gains over net short-term capital losses)
                     distributed to shareholders.
 
- --------------------------------------------------------------------------------
TAXES
YOU MUST PAY TAXES ON YOUR PORTFOLIO'S EARNINGS, WHETHER YOU TAKE YOUR PAYMENTS
IN CASH OR ADDITIONAL SHARES.
- --------------------------------------------------------------------------------
 
                                                                              16
<PAGE>
TAX STATUS
OF DISTRIBUTIONS
   
The Portfolio distributes substantially all of its
net investment company taxable income to
shareholders. Dividends from the Portfolio's net
investment company taxable income are taxable to its
shareholders as ordinary income (whether received in
cash or in additional shares), and generally will
qualify for the dividends-received deduction for
corporate shareholders to the extent that such
dividends are derived from dividends received by the
Portfolio from domestic corporations. Distributions
to
    
 
- --------------------------------------------------------------------------------
DISTRIBUTIONS
THE PORTFOLIO DISTRIBUTES INCOME DIVIDENDS AND CAPITAL GAINS. INCOME DIVIDENDS
REPRESENT THE EARNINGS FROM THE PORTFOLIO'S INVESTMENTS; CAPITAL GAINS
DISTRIBUTIONS OCCUR WHEN THE PORTFOLIO SELLS INVESTMENTS FOR MORE THAN THEIR
ORIGINAL PURCHASE PRICE.
- --------------------------------------------------------------------------------
 
   
shareholders of net capital gains of the Portfolio also will not qualify for the
dividends received deduction and will be taxable to shareholders as long-term
capital gain, taxable at the rate of 20% for property held for more than 18
months and at the rate of 28% for property held for more than one year but not
for more than 18 months, whether received in cash or additional shares, and
regardless of how long a shareholder has held
    
 
   
the shares. The Portfolio will provide annual reports to shareholders of the
federal income tax status of all distributions. Dividends declared by a
Portfolio 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 Portfolio and received by the shareholders on December 31 of the
year declared if paid by the Portfolio at any time during the following January.
    
 
      The Portfolio intends to make sufficient distributions to avoid liability
for the federal excise tax applicable to RICs.
 
      Each sale, exchange, or redemption of the Portfolio's shares generally is
a taxable transaction to the shareholder.
 
ADDITIONAL
INFORMATION ABOUT
DOING BUSINESS
WITH US
    ____________________________________________________________________________
 
BUSINESS DAYS
   
                     You may buy, sell or exchange
                     shares on days which the New
                     York Stock Exchange is open for
                     business (a "Business Day"). All
                     purchase, exchange and
                     redemption requests received in
                     "good order" will be effective
                     as of the Business Day received
                     by the Transfer Agent (or its
                     authorized agent) as long as the
                     Transfer Agent (or its
                     authorized agent) receives the
                     order and, in the case of a
                     purchase request, payment before
                     the Portfolio's net asset value
                     has been determined. Otherwise
                     the purchase will be effective
                     when payment is received.
                     Broker-dealers may have separate
                     arrangements with the Trust regarding the sale of its Class
                     D shares.
    
 
   
                           If an exchange request is
                     for shares of a portfolio whose
                     net asset value is calculated as
                     of a time earlier than that of
                     the Portfolio, the exchange request will not be effective
                     until the next Business Day. Anyone who wishes to make an
    
 
                                                                              17
<PAGE>
                     exchange must have received a current prospectus of the
                     portfolio into which the exchange is being made before the
                     exchange will be effected.
 
- --------------------------------------------------------------------------------
BUY, EXCHANGE AND
SELL REQUESTS ARE IN
"GOOD ORDER" WHEN:
- - THE ACCOUNT NUMBER AND PORTFOLIO NAME ARE SHOWN
   - THE AMOUNT OF THE TRANSACTION IS SPECIFIED IN DOLLARS OR SHARES
   - SIGNATURES OF ALL OWNERS APPEAR EXACTLY AS THEY ARE REGISTERED ON THE
     ACCOUNT
   - ANY REQUIRED SIGNATURE GUARANTEES (IF APPLICABLE) ARE INCLUDED
   - OTHER SUPPORTING LEGAL DOCUMENTS (AS NECESSARY) ARE PRESENT
- --------------------------------------------------------------------------------
 
MINIMUM INVESTMENTS
The minimum initial investment in the Portfolio'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). 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 the Portfolio's
                     performance, the Portfolio 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 MINIMUM
ACCOUNT BALANCE
                     Due to the relatively high cost of handling small
                     investments, the Portfolio reserves the right to redeem, at
                     net asset value, the shares of any shareholder if, because
                     of redemptions of shares by or on behalf of the
                     shareholder, the account of such shareholder in the
                     Portfolio has a value of less than $1,000, the minimum
                     initial purchase amount. Accordingly, an investor
                     purchasing shares of the Portfolio in only the minimum
                     investment amount may be subject to such involuntary
                     redemption if he or she thereafter redeems any of these
                     shares. Before the Portfolio 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
                     amount and will be allowed 60 days to make an additional
                     investment in the Portfolio 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.
 
   
                           At various times, the Portfolio may receive a request
                     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 15 or more days. The
                     Portfolio 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.
    
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 Distributor plus
                     any applicable sales charge (the "offering price"). No
                     certificates representing shares will be
 
                                                                              18
<PAGE>
   
                     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 at the close
                     of regular trading on the New York Stock Exchange
                     (currently 4:00 p.m., Eastern time) on each Business Day.
                     Payment to shareholders for shares redeemed will be made
                     within seven days after receipt by the Distributor of the
                     redemption order.
    
HOW THE
NET ASSET VALUE
IS DETERMINED
   
                     The net asset value per share of the Portfolio is
                     determined by dividing the total market value of its
                     investments and other assets, less any liabilities, by the
                     total number of outstanding shares of the Portfolio. If
                     there is no readily ascertainable market value for a
                     security, SEI Management will make a good faith
                     determination as to the "fair value" of the security.
                     Securities having maturities of 60 days or less at the time
                     of purchase will be valued using the amortized cost method
                     (described in the Statement of Additional Information).
                     Purchases will be made in full and fractional shares of the
                     Portfolio calculated to three decimal places. Although the
                     methodology and procedures for determining net asset value
                     per share are identical for both classes of the Portfolio,
                     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 and
                     the incremental transfer agent fees charged to Class D
                     shares.
    
RIGHTS OF ACCUMULATION
                     In calculating the sales charge rates applicable to current
                     purchases of the Portfolio's shares, a "single purchaser"
                     (defined below) is entitled to combine current purchases
                     with the current market value of previously purchased
                     shares of the Portfolio and Class D shares of other
                     portfolios ("Eligible Portfolios") which are sold subject
                     to a comparable sales charge.
 
                           The term "single purchaser" refers to (i) an
                     individual, (ii) an individual and spouse purchasing shares
                     of the Portfolio for their own account or for trust or
                     custodial accounts of their minor children, or (iii) a
                     fiduciary purchasing for any one trust, estate or fiduciary
                     account, including employee benefit plans created under
                     Sections 401 or 457 of the Code, including related plans of
                     the same employer. Furthermore, under this provision,
                     purchases by a single purchaser shall include purchases by
                     an individual for his or her own account in combination
                     with (i) purchases of that individual and spouse for their
                     joint accounts or for trust and custodial accounts for
                     their minor children and (ii) purchases of that
                     individual's spouse for his or her own account. To be
                     entitled to a reduced sales charge based upon shares
                     already owned, the investor must ask the Transfer Agent for
                     such reduction at the time of purchase and provide the
                     account number(s) of the investor, the investor and spouse,
                     and their children (under age 21). The Portfolio may amend
                     or terminate this right of accumulation at any time as to
                     subsequent purchases.
LETTER OF INTENT
                     By submitting a Letter of Intent (the "Letter") to the
                     Transfer Agent, a single purchaser may purchase shares of
                     the Portfolio and the other Eligible Portfolios during a
                     13-month period at the reduced sales charge rates applying
                     to the aggregate amount of the intended
 
                                                                              19
<PAGE>
                     purchases stated in the Letter. The Letter may apply to
                     purchases made up to 90 days before the date of the Letter.
                     It is the shareholder's responsibility to notify the
                     Transfer Agent at the time the Letter is submitted that
                     there are prior purchases that may apply.
 
                           Five percent (5%) of the total amount intended to be
                     purchased will be held in escrow by the Transfer Agent
                     until such purchase is completed within the 13-month
                     period. The 13-month period begins on the date of the
                     earliest purchase. If the intended investment is not
                     completed, the Transfer Agent will surrender an appropriate
                     number of the escrowed shares for redemption in order to
                     realize the difference between the sales charge on the
                     shares purchased at the reduced rate and the sales charge
                     otherwise applicable to the total shares purchased. Such
                     purchasers may include the value of all their shares of the
                     Portfolio and of any of the other Eligible Portfolios
                     towards the completion of such Letter.
SALES CHARGE WAIVERS
                     No sales charge is imposed on shares of the Portfolio: (i)
                     issued in plans of reorganization, such as mergers, asset
                     acquisitions and exchange offers, to which the Trust is a
                     party; (ii) sold to dealers or brokers that have a sales
                     agreement with the Distributor ("participating
                     broker-dealers"), for their own account or for retirement
                     plans for employees or sold to present employees of dealers
                     or brokers that certify to the Distributor at the time of
                     purchase that such purchase is for their own account; (iii)
                     sold to present employees of SEI or one of its affiliates,
                     or of any entity which is a current service provider to the
                     Trust; (iv) sold to tax-exempt organizations enumerated in
                     Section 501(c) of the Code or qualified employee benefit
                     plans created under Sections 401, 403(b)(7) or 457 of the
                     Code (but not IRAs or SEPs); (v) sold to fee-based clients
                     of banks, financial planners and investment advisers; (vi)
                     sold to clients of trust companies and bank trust
                     departments; (vii) sold to trustees and officers of the
                     Trust; (viii) purchased with proceeds from the recent
                     redemption of shares of another class of shares of a
                     portfolio of the Trust or Class D shares of SEI Tax Exempt
                     Trust, SEI International Trust or SEI Liquid Asset Trust;
                     (ix) purchased with the proceeds from the recent redemption
                     of shares of a mutual fund with similar investment
                     objectives and policies for which a front-end sales charge
                     was paid (this offer will be extended, to cover shares on
                     which a deferred sales charge was paid, if permitted under
                     regulatory authorities' interpretation of applicable law);
                     (x) sold to participants or members of certain affinity
                     groups, such as trade associations or membership
                     organizations, which have entered into arrangements with
                     the Distributor; or (xi) sold to persons participating in
                     certain financial services programs offered by the bank
                     affiliates of First Security Corporation.
 
                           An investor relying upon any of the categories of
                     waivers of sales charges must qualify such waiver in
                     advance of the purchase with the Transfer Agent or the
                     financial institution or the intermediary through which
                     shares are purchased by the investor.
 
                           The waiver of the sales charge under circumstances
                     (viii) and (ix) above applies only if the following
                     conditions are met: the purchase must be made within 60
                     days of the
 
                                                                              20
<PAGE>
                     redemption; the Transfer Agent must be notified in writing
                     by the investor, or his or her agent, at the time a
                     purchase is made; and a copy of the investor's account
                     statement showing such redemption must accompany such
                     notice. The waiver policy with respect to the purchase of
                     shares through the use of proceeds from a recent redemption
                     as described in clauses (viii) and (ix) above will not be
                     continued indefinitely and may be discontinued at any time
                     without notice. Investors should call 1-800-437-6016 to
                     confirm availability prior to initiating the procedures
                     described in clauses (viii) and (ix) above.
 
                           The Distributor has also entered into arrangements
                     with certain affinity groups and broker-dealers wherein
                     their members or clients are entitled to percentage-based
                     discounts from the otherwise applicable sales charge for
                     purchase of Class D shares. Currently the percentage-based
                     discount is either 10% or 50%. Members of affinity groups
                     and clients of broker-dealers should see the Statement of
                     Additional Information or contact the Transfer Agent for
                     further information.
SIGNATURE GUARANTEES
                     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 his or her address of
                     record. The Trust and the Transfer Agent reserve the right
                     to amend these requirements without notice.
TELEPHONE/WIRE INSTRUCTIONS
                     Redemption orders may be placed by telephone. 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
                     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
WITHDRAWAL
PLAN ("SWP")
                     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.
 
                                                                              21
<PAGE>
HOW TO
CLOSE YOUR ACCOUNT
                     An account may be closed by providing written notice to the
                     Transfer Agent. You may also close your account by
                     telephone if you have previously elected telephone options
                     on your account application.
GENERAL INFORMATION
                  ______________________________________________________________
 
THE TRUST
                     The Trust was organized as a Massachusetts business trust
                     under a Declaration of Trust dated October 20, 1986. The
                     Declaration of Trust permits the Trust to offer separate
                     series ("portfolios") of shares and different classes of
                     the Portfolio. Shareholders may purchase shares in the
                     Portfolio through two separate classes: Class A and Class D
                     shares, which provide for variation in distribution and
                     transfer agent costs, voting rights, dividends, and the
                     imposition of a sales charge on the Class D shares.
                     Additional information pertaining to the Trust may be
                     obtained by writing to SEI Fund Management, Oaks,
                     Pennsylvania 19456, or by calling 1-800-437-6016. All
                     consideration received by the Trust for shares of any
                     portfolio and all assets of such portfolio belong to that
                     portfolio and would be subject to the 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.
 
                           Certain shareholders in the Trust may obtain asset
                     allocation services from the Adviser and other financial
                     intermediaries with respect to their investments in the
                     Trust. If a sufficient amount of the Portfolio's assets are
                     subject to such asset allocation services, the Portfolio
                     may incur higher transaction costs and a higher portfolio
                     turnover rate than would otherwise be anticipated as a
                     result of redemptions and purchases of Portfolio shares
                     pursuant to such services. Further, to the extent that the
                     Adviser is providing asset allocation services and
                     providing investment advice to the Portfolio, it may face
                     conflicts of interest in fulfilling its responsibilities
                     because of the possible differences between the interests
                     of its asset allocation clients and the interests of the
                     Portfolio.
TRUSTEES OF THE TRUST
                     The management and affairs of the Trust are supervised by
                     the Trustees under the laws of the Commonwealth of
                     Massachusetts. The Trustees have approved contracts under
                     which, as described above, certain companies provide
                     essential management services to the Trust.
VOTING RIGHTS
                     Each share held entitles the shareholder of record to one
                     vote. The shareholders of each Portfolio of the Trust will
                     vote separately on matters relating solely to that
                     Portfolio. The shareholders of each class will vote
                     separately on matters pertaining to its distribution plan.
                     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
 
                                                                              22
<PAGE>
   
                     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 statements
                     semi-annually and audited financial statements annually.
                     The Trust furnishes proxy statements and other reports to
                     shareholders of record.
SHAREHOLDER INQUIRIES
                     Shareholder inquiries should be directed to DST Systems,
                     Inc., P.O. Box 419240, Kansas City, Missouri 64141-6240.
DIVIDENDS
                     Substantially all of the net investment income (exclusive
                     of capital gains) of the Portfolio is periodically declared
                     and paid as a dividend. Dividends currently are paid on a
                     quarterly basis for the Portfolio. Currently, 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 SEI Management at
                     least 15 days prior to the distribution.
 
                                                                              23
<PAGE>
                           Dividends and capital gains of the Portfolio 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 a dividend or
                     capital gains distributions, a shareholder will pay the
                     full price for the share 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 the Portfolio because of
                     the additional distribution and transfer agent expenses
                     charged to Class D shares.
COUNSEL AND INDEPENDENT
ACCOUNTANTS
                     Morgan, Lewis & Bockius LLP serves as counsel to the Trust.
                     Price Waterhouse LLP serves as the independent accountants
                     of the Trust.
CUSTODIAN AND WIRE AGENT
                     CoreStates Bank, N.A., Broad and Chestnut Streets, P.O. Box
                     7618, Philadelphia, Pennsylvania 19101 (the "Custodian"),
                     acts as custodian and wire agent of the Trust's assets. The
                     Custodian holds cash, securities and other assets of the
                     Trust as required by the 1940 Act.
 
DESCRIPTION OF
PERMITTED
INVESTMENTS AND
RISK FACTORS
          ______________________________________________________________________
 
                     The following is a description of the permitted investment
                     practices for the Portfolio, and the associated risk
                     factors:
AMERICAN DEPOSITARY
RECEIPTS ("ADRS")
                     ADRs are securities, typically issued by U.S. financial
                     institution (a "depositary"), that evidence ownership
                     interests in a security or a pool of securities issued by a
                     foreign issuer and deposited with the depositary. ADRs may
                     be available 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 underlying security.
CONVERTIBLE SECURITIES
                     Convertible securities are corporate securities that are
                     exchangeable for a set number of another security at a
                     prestated price. Convertible securities typically have
                     characteristics similar to both fixed-income and equity
                     securities. Because of the conversion feature, the market
                     value of a convertible security tends to move with the
                     market value of the underlying stock. The value of a
                     convertible security is also affected by prevailing
                     interest rates, the credit quality of the issuer, and any
                     call provisions.
DERIVATIVES
                     Derivatives are securities that derive their value from
                     other securities, assets or indices. The following are
                     considered derivative securities: options on futures,
                     futures, options (e.g., puts and calls), swap agreements,
                     mortgage-backed securities (e.g., CMOs, REMICs, IOs and
                     POs), when-issued securities and forward commitments,
                     floating and variable rate securities, convertible
                     securities, "stripped" U.S. Treasury securities (e.g.,
                     Receipts and STRIPs), privately issued stripped securities
                     (e.g., TGRs, TRs and CATS). See elsewhere in
 
                                                                              24
<PAGE>
   
                     this "Description of Permitted Investments and Risk
                     Factors" for discussions of certain of these instruments.
    
FUTURES AND OPTIONS ON
FUTURES
                     Futures contracts provide for the future sale by one party
                     and purchase by another party of a specified amount of a
                     specific security at a specified future time and at a
                     specified price. An option on a futures contract give the
                     purchaser the right, in exchange for a premium, to assume a
                     position in a futures contract at a specified exercise
                     price during the term of the option. The 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. The Portfolio will
                     minimize the risk that it will be unable to close out a
                     futures contract that are traded on national futures
                     exchanges.
 
   
                           An index futures contract is a bilateral agreement
                     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 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 comprising the index is
                     made; generally contracts are closed out prior to the
                     expiration date of the contract.
    
 
   
                           In order to avoid leveraging and related risks, when
                     the Portfolio invests in futures contracts, it will cover
                     its position by depositing an amount of cash or liquid
                     securities equal to the market value of the futures
                     positions held, less margin deposits, in a segregated
                     account and that amount will be marked to market on a daily
                     basis.
    
 
   
                           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 future, (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 options on
                     futures.
    
ILLIQUID SECURITIES
                     Illiquid securities are securities that cannot be disposed
                     of within seven business days at approximately the price at
                     which they are being carried on the Portfolio's books.
                     Illiquid securities include demand instruments with demand
                     notice periods exceeding seven days, securities for which
                     there is no active secondary market and repurchase
                     agreements with durations (or maturities) over seven days
                     in length.
MONEY MARKET SECURITIES
                     Money market securities are high-quality,
                     dollar-denominated, short-term debt instruments. They
                     consist of: (i) bankers' acceptances, certificates of
                     deposits, notes and time deposits of highly-rated U.S.
                     banks and U.S. branches of foreign banks; (ii) U.S.
                     Treasury Obligations and obligations issued by the agencies
                     and instrumentalities of the U.S.
 
                                                                              25
<PAGE>
                     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.
OPTIONS
   
                     The Portfolio may purchase and write put and call options
                     on indices and enter into related closing transactions. A
                     put option on a security gives the purchase 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 on a security 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.
    
 
   
                           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.
    
 
   
                           All options written on indices or securities must be
                     covered. When the Portfolio writes an option or security on
                     an index, it will establish a segregated account containing
                     cash or liquid securities 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 option; and (4) while the
                     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.
SECURITIES LENDING
                     In order to generate additional income, the Portfolio may
                     lend its securities pursuant to agreements that require
                     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. The 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.
 
                                                                              26
<PAGE>
SECURITIES OF FOREIGN ISSUERS
                     There are certain risks connected with investing in foreign
                     securities. These include risks of adverse political and
                     economic developments (including possible governmental
                     seizure or nationalization of assets), the possible
                     imposition of exchange controls or other governmental
                     restrictions, less uniformity in accounting and reporting
                     requirements, the possibility that there will be less
                     information on such securities and their issuers available
                     to the public, the difficulty of obtaining or enforcing
                     court judgments abroad, restrictions on foreign investments
                     in other jurisdictions, difficulties in effecting
                     repatriation of capital invested abroad, and difficulties
                     in transaction settlements and the effect of delay on
                     shareholder equity. Foreign securities may be subject to
                     foreign taxes, and may be less marketable than comparable
                     U.S. securities.
U.S. GOVERNMENT AGENCY
OBLIGATIONS
   
                     Obligations issued or guaranteed by agencies of the U.S.
                     Government, including, among others, the Federal Farm
                     Credit Bank, the Federal Housing Administration and the
                     Small Business Administration, and obligations issued or
                     guaranteed by instrumentalities of the U.S. Government,
                     including, among others, the Federal Home Loan Mortgage
                     Corporation, the Federal Land Banks and the U.S. Postal
                     Service. Some of these securities are supported by the full
                     faith and credit of the U.S. Treasury (e.g., Government
                     National Mortgage Association 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., Fannie Mae Securities).
    
U.S. TREASURY OBLIGATIONS
                     U.S. Treasury obligations consist of bills, notes and bonds
                     issued by the U.S. Treasury, as well as separately traded
                     interest and principal component parts of such obligations
                     known as Separately Traded Registered Interest and
                     Principal Securities ("STRIPS") that are transferable
                     through the Federal book-entry system.
WARRANTS
                     Warrants are instruments giving holders the right, but not
                     the obligation, to buy equity or fixed income securities of
                     a company at a given price during a specified period.
WHEN-ISSUED AND DELAYED
DELIVERY SECURITIES
   
                     When-issued or delayed delivery transactions involve the
                     purchase of an instrument with payment and delivery taking
                     place in the future. Delivery of and payment for these
                     securities may occur a month or more after the date of the
                     purchase commitment. The Portfolio will maintain a separate
                     account with liquid securities or cash in an amount at
                     least equal to these commitments. The interest rate
                     realized on these securities is fixed as of the purchase
                     date, and no interest accrues to the Portfolio before
                     settlement.
    
 
                     Additional information on permitted investments and risk
                     factors can be found in the Statement of Additional
                     Information.
 
                                                                              27
<PAGE>
SEI INSTITUTIONAL MANAGED TRUST
 
   
JANUARY 31, 1998
    
 
- --------------------------------------------------------------------------------
 
   
CORE FIXED INCOME PORTFOLIO
    
 
HIGH YIELD BOND PORTFOLIO
 
- --------------------------------------------------------------------------------
 
   
This Prospectus concisely sets forth information about the above-referenced
portfolios that an investor needs to know before investing. Please read this
Prospectus carefully, and keep it on file for future reference.
    
 
   
A Statement of Additional Information dated January 31, 1998, has been filed
with the Securities and Exchange Commission (the "SEC") and is available upon
request and without charge by writing the Distributor, SEI Investments
Distribution Co., Oaks, Pennsylvania 19456, or by calling 1-800-342-5734. The
Statement of Additional Information is incorporated by reference into this
Prospectus.
    
 
SEI Institutional Managed Trust (the "Trust") is an open-end management
investment company, certain classes of which offer financial institutions a
convenient means of investing their own funds or funds for which they act in a
fiduciary, agency or custodial capacity in professionally managed diversified
portfolios of securities. A portfolio may offer separate classes of shares that
differ from each other primarily in the allocation of certain distribution
expenses, sales charges and minimum investment amounts. This Prospectus offers
the Class A shares of the fixed income portfolios (each a "Portfolio" and,
together, the "Portfolios") listed above.
 
   
THE HIGH YIELD BOND PORTFOLIO INVESTS PRIMARILY, AND MAY INVEST ALL OF ITS
ASSETS, IN LOWER RATED BONDS, COMMONLY REFERRED TO AS "JUNK BONDS." THESE
SECURITIES ARE SPECULATIVE AND ARE SUBJECT TO GREATER RISK OF LOSS OF PRINCIPAL
AND INTEREST THAN INVESTMENTS IN HIGHER RATED BONDS. BECAUSE INVESTMENT IN SUCH
SECURITIES ENTAILS GREATER RISKS, INCLUDING RISK OF DEFAULT, AN INVESTMENT IN
THE HIGH YIELD BOND PORTFOLIO SHOULD NOT CONSTITUTE A COMPLETE INVESTMENT
PROGRAM AND MAY NOT BE APPROPRIATE FOR ALL INVESTORS. INVESTORS SHOULD CAREFULLY
CONSIDER THE RISKS POSED BY AN INVESTMENT IN THE HIGH YIELD BOND PORTFOLIO
BEFORE INVESTING. SEE "INVESTMENT OBJECTIVES AND POLICIES," "GENERAL INVESTMENT
POLICIES AND RISK FACTORS" AND THE "APPENDIX."
    
 
- --------------------------------------------------------------------------------
 
   
 THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION, NOR HAS THE SECURITIES AND EXCHANGE 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 SHARES INVOLVES RISK, INCLUDING POSSIBLE
 LOSS OF THE PRINCIPAL AMOUNT INVESTED.
<PAGE>
ANNUAL OPERATING EXPENSES (AS A PERCENTAGE OF AVERAGE NET ASSETS)        CLASS A
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                               CORE FIXED   HIGH YIELD
                                                 INCOME        BOND
                                               PORTFOLIO    PORTFOLIO
                                               ----------   ----------
<S>                                            <C>          <C>
Management Fee/Advisory Fees (AFTER FEE
 WAIVER) (1)                                        0.54%        0.79%
12b-1 Fees                                           None         None
Total Other Expenses                                0.06%        0.07%
   Shareholder Servicing Fees                  0.00%        0.00%
- ----------------------------------------------------------------------
Total Operating Expenses (AFTER FEE WAIVER)
 (2)                                                0.60%        0.86%
- ----------------------------------------------------------------------
</TABLE>
    
 
   
(1) SEI INVESTMENTS MANAGEMENT CORPORATION ("SIMC") HAS AGREED TO WAIVE, ON A
    VOLUNTARY BASIS, A PORTION OF ITS MANAGEMENT FEE, AND THE MANAGEMENT/
    ADVISORY FEES SHOWN REFLECT THIS VOLUNTARY WAIVER. SIMC RESERVES THE RIGHT
    TO TERMINATE ITS WAIVER AT ANY TIME IN ITS SOLE DISCRETION. ABSENT SUCH FEE
    WAIVER, MANAGEMENT/ADVISORY FEES WOULD BE: CORE FIXED INCOME PORTFOLIO,
    .56%; AND HIGH YIELD BOND PORTFOLIO, .84%.
    
 
   
(2) ABSENT THESE FEE WAIVERS, TOTAL OPERATING EXPENSES FOR CLASS A SHARES OF THE
    PORTFOLIOS WOULD BE: CORE FIXED INCOME PORTFOLIO, .62%; AND HIGH YIELD BOND
    PORTFOLIO, .91%. ADDITIONAL INFORMATION MAY BE FOUND UNDER "THE ADVISER,"
    "THE SUB-ADVISERS" AND "THE MANAGER."
    
 
EXAMPLE                                                                  CLASS A
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                               1 YR.    3 YRS.    5 YRS.    10 YRS.
                                               ------   -------   -------   --------
 
<S>                                            <C>      <C>       <C>       <C>
 
An investor in a Portfolio would pay the
 following expenses on a $1,000
 investment assuming (1) a 5% annual return
 and (2) redemption at the end
 of each time period:
  Core Fixed Income Portfolio                  $   6    $   19    $   33    $    75
  High Yield Bond Portfolio                    $   9    $   27    $   48    $   106
- ------------------------------------------------------------------------------------
</TABLE>
    
 
THE EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF THE PAST OR FUTURE
EXPENSES. ACTUAL EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.
 
THE PURPOSE OF THE EXPENSE TABLE AND EXAMPLE IS TO ASSIST THE INVESTOR IN
UNDERSTANDING THE VARIOUS COSTS AND EXPENSES THAT MAY BE DIRECTLY OR INDIRECTLY
BORNE BY THE INVESTORS IN CLASS A SHARES OF THE PORTFOLIOS. CERTAIN PORTFOLIOS
OF THE TRUST ALSO OFFER CLASS D SHARES, WHICH ARE SUBJECT TO THE SAME EXPENSES,
EXCEPT THAT CLASS D SHARES BEAR DIFFERENT DISTRIBUTION COSTS, ADDITIONAL
TRANSFER AGENT COSTS AND SALES CHARGES. A PERSON WHO PURCHASES SHARES THROUGH A
FINANCIAL INSTITUTION MAY BE CHARGED SEPARATE FEES BY THAT INSTITUTION.
ADDITIONAL INFORMATION MAY BE FOUND UNDER "THE MANAGER," "THE ADVISER." "THE
SUB-ADVISERS" AND "DISTRIBUTION AND SHAREHOLDER SERVICING."
 
                                                                               2
<PAGE>
FINANCIAL HIGHLIGHTS
                  ______________________________________________________________
 
   
The following information has been derived from the financial statements audited
by Price Waterhouse LLP, the Trust's independent accountants. Price Waterhouse
LLP's report dated November 25, 1997 on the Trust's financial statements as of
September 30, 1997 is incorporated by reference into the Trust's Statement of
Additional Information. The Trust's financial statements and additional
performance information are set forth in the 1997 Annual Report to Shareholders,
which is available upon request and without charge by calling 1-800-342-5734.
This table should be read in conjunction with the Trust's financial statements
and notes thereto.
    
 
FOR A CLASS A SHARE OUTSTANDING THROUGHOUT THE PERIOD
   
<TABLE>
<CAPTION>
                    NET ASSET                NET REALIZED AND   DIVIDENDS
                      VALUE        NET          UNREALIZED       FROM NET    DISTRIBUTIONS   NET ASSET
                    BEGINNING   INVESTMENT    GAINS (LOSSES)    INVESTMENT   FROM REALIZED   VALUE END
                    OF PERIOD     INCOME      ON SECURITIES       INCOME     CAPITAL GAINS   OF PERIOD
- ------------------------------------------------------------------------------------------------------
<S>                 <C>         <C>          <C>                <C>          <C>             <C>
- ------------------
CORE FIXED INCOME
 PORTFOLIO
- ------------------
CLASS A
  1997               $  10.23     $0.63           $ 0.33          $(0.63)       $(0.16)       $  10.40
  1996                  10.46      0.64            (0.18)          (0.69)       --               10.23
  1995                   9.65      0.65             0.82           (0.66)       --               10.46
  1994                  10.87      0.56            (1.12)          (0.55)        (0.11)           9.65
  1993                  10.77      0.60             0.28           (0.60)        (0.18)          10.87
  1992                  10.30      0.69             0.49           (0.69)        (0.02)          10.77
  1991                   9.79      0.73             0.52           (0.74)       --               10.30
  1990                   9.95      0.75            (0.12)          (0.76)        (0.03)           9.79
  1989                   9.89      0.82             0.06           (0.82)       --                9.95
  1988(1)                9.84      0.82             0.07           (0.84)       --                9.89
- ------------------
HIGH YIELD BOND
 PORTFOLIO
- ------------------
  1997               $  11.14     $1.04           $ 0.57          $(1.04)       $(0.05)       $  11.66
  1996                  10.64      0.94             0.62           (1.03)        (0.03)          11.14
  1995(2)               10.00      0.67             0.55           (0.58)       --               10.64
 
<CAPTION>
                                                                                       RATIO OF NET
                                                                           RATIO OF     INVESTMENT
                                                           RATIO OF NET    EXPENSE        INCOME
                                               RATIO OF     INVESTMENT    TO AVERAGE    TO AVERAGE
                                NET ASSETS     EXPENSES       INCOME      NET ASSETS    NET ASSETS    PORTFOLIO
                     TOTAL        END OF      TO AVERAGE    TO AVERAGE    (EXCLUDING    (EXCLUDING    TURNOVER
                     RETURN    PERIOD (000)   NET ASSETS    NET ASSETS     WAIVERS)      WAIVERS)       RATE
- ------------------
<S>                 <C>        <C>            <C>          <C>            <C>          <C>            <C>
- ------------------
CORE FIXED INCOME
 PORTFOLIO
- ------------------
CLASS A
  1997                 9.80%     $1,063,335      0.60%         6.17%         0.61%         6.16%        216%
  1996                 4.51%        655,300      0.57%         6.24%         0.64%         6.17%        311%
  1995                15.87%        419,959      0.55%         6.60%         0.68%         6.47%        294%
  1994               (5.36)%        311,955      0.55%         5.57%         0.62%         5.50%        370%
  1993                 8.58%        295,798      0.55%         5.63%         0.66%         5.52%         35%
  1992                11.91%        213,632      0.55%         6.71%         0.68%         6.58%         39%
  1991                13.31%        153,356      0.55%         7.41%         0.73%         7.23%         44%
  1990                 6.58%         83,876      0.55%         7.79%         0.76%         7.58%         40%
  1989                 9.39%         42,707      0.55%         8.57%         0.87%         8.25%         42%
  1988(1)              9.34%         25,661      0.47%         8.57%         1.12%         7.92%         34%
- ------------------
HIGH YIELD BOND
 PORTFOLIO
- ------------------
  1997                15.30%     $  236,457      0.86%         9.33%         0.91%         9.28%         68%
  1996                15.46%        107,545      0.87%         9.01%         0.94%         8.94%         55%
  1995(2)             17.72%         23,724      0.67%        10.02%         0.86%         9.83%         56%
</TABLE>
    
 
   
 (1) CORE FIXED INCOME CLASS A SHARES WERE OFFERED BEGINNING MAY 1, 1987. ALL
    RATIOS INCLUDING TOTAL RETURN FOR THAT PERIOD HAVE BEEN ANNUALIZED.
    
 
   
 (2) HIGH YIELD BOND CLASS A SHARES WERE OFFERED BEGINNING JANUARY 11, 1995. ALL
    RATIOS INCLUDING TOTAL RETURN FOR THAT PERIOD HAVE BEEN ANNUALIZED.
    
 
                                                                               3
<PAGE>
THE TRUST
      __________________________________________________________________________
 
   
SEI INSTITUTIONAL MANAGED TRUST (the "Trust") is an open-end investment
management company that offers units of beneficial interest ("shares") in
separate diversified and non-diversified portfolios. This prospectus offers
Class A shares of the Trust's Core Fixed Income and High Yield Bond Portfolios
(each a "Portfolio" and, together, the "Portfolios"). The investment adviser and
investment sub-advisers to the Portfolios are referred to collectively as the
"advisers." Additional information pertaining to the Trust may be obtained by
writing from SEI Investments Distribution Co., Oaks, Pennsylvania 19456, or by
calling 1-800-342-5734.
    
 
INVESTMENT OBJECTIVES
AND POLICIES
     ___________________________________________________________________________
CORE FIXED INCOME PORTFOLIO
                     The investment objective of the Core Fixed Income Portfolio
                     is current income consistent with the preservation of
                     capital. There can be no assurance that the Portfolio will
                     achieve its investment objective.
 
                           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 a
                     nationally recognized statistical rating organization
                     ("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 bonds, 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. The Portfolio may also borrow money,
                     invest in illiquid securities and shares of other
                     investment companies, and lend its securities to qualified
                     buyers.
    
 
                           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 duration a
 
                                                                               4
<PAGE>
                     more accurate measure of a security's expected life and
                     sensitivity to interest rate changes than is the security's
                     term to maturity.
 
                           The Core Fixed Income 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.
 
   
                           The Portfolio's annual turnover rate may exceed 100%.
                     Such a turnover rate may lead to higher transaction costs
                     and may result in higher taxes for shareholders.
    
 
HIGH YIELD BOND PORTFOLIO
                     The investment objective of the High Yield Bond Portfolio
                     is to maximize total return. There can be no assurance that
                     the Portfolio will achieve its investment objective.
 
   
                           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, determined to be of
                     comparable quality by the advisers. Below investment grade
                     securities are commonly referred to as "junk bonds," and
                     generally entail increased credit and market risk.
                     Securities rated in the lowest rating categories may have
                     predominantly speculative characteristics or may be in
                     default.
    
 
                           The Portfolio may invest in all types of fixed income
                     securities issued by domestic and foreign issuers,
                     including: (i) mortgage-backed securities, (ii)
                     asset-backed securities, (iii) zero coupon, pay-in-kind or
                     deferred payment securities, and (iv) variable and floating
                     rate instruments.
 
   
                           Any assets of the Portfolio not invested in the fixed
                     income securities described above may be invested in: (i)
                     convertible securities, (ii) preferred stocks, (iii) equity
                     securities, (iv) investment grade fixed income securities,
                     (v) money market securities, (vi) securities issued on a
                     when-issued and delayed-delivery basis, including TBA
                     mortgage-backed securities, (vii) forward foreign currency
                     contracts, and (viii) Yankee obligations. In addition, the
                     Portfolio may purchase or write options, futures and
                     options on futures. The Portfolio may also borrow money,
                     invest in illiquid securities and shares of other
                     investment companies, and lend its securities to qualified
                     buyers.
    
 
                           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 "Appendix" to this Prospectus sets forth a
                     description of the bond rating categories of several
                     NRSROs. The ratings established by each NRSRO represents
                     its opinion of the safety of principal and interest
                     payments (and not the market risk) of bonds and other fixed
                     income securities it undertakes 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 advisers will
                     consider ratings, they will perform
 
                                                                               5
<PAGE>
   
                     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.
    
 
   
                           The achievement of the Portfolio's investment
                     objective may be more dependent on the advisers' own credit
                     analysis than would be the case if the Portfolio invested
                     in higher rated securities. There is no bottom limit on the
                     ratings of high yield securities that may be purchased or
                     held by the Portfolio.
    
 
   
GENERAL INVESTMENT
POLICIES AND RISK
FACTORS
    
    ____________________________________________________________________________
EQUITY SECURITIES
   
                     Equity securities represent ownership interests in a
                     company or corporation, and include common stock, preferred
                     stock and warrants and other rights to acquire such
                     instruments.
    
 
                     Investments in equity securities in general are subject to
                     market risks that may cause their prices to fluctuate over
                     time. The value of convertible equity securities is also
                     affected by prevailing interest rates, the credit quality
                     of the issuer and any call provisions. Fluctuations in the
                     value of equity securities in which a Portfolio invests
                     will cause the net asset value of the Portfolio to
                     fluctuate.
FIXED INCOME SECURITIES
   
                     Fixed income securities are debt obligations issued by
                     corporations, municipalities and other borrowers. The
                     market value of a Portfolio's fixed income investments will
                     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. Securities
                     with longer maturities are subject to greater fluctuations
                     in value than securities with shorter maturities. Fixed
                     income securities rated in the fourth highest rating
                     category lack outstanding investment characteristics, and
                     have speculative characteristics as well. Changes by an
                     NRSRO in the rating of any fixed income security and in the
                     ability of an issuer to make payments of interest and
                     principal also affect the value of these investments.
                     Changes in the value of a Portfolio's securities will not
                     affect cash income derived from these securities but will
                     affect the Portfolio's net asset value.
    
 
                           Securities held by a Portfolio that are guaranteed by
                     the U.S. Government, its agencies or instrumentalities
                     guarantee only the payment of principal and interest, and
                     do not guarantee the securities' yield or value or the
                     yield or value of a Portfolio's shares.
 
                           There is a risk that the current interest rate on
                     floating and variable rate instruments may not accurately
                     reflect existing market interest rates.
FOREIGN SECURITIES AND FOREIGN CURRENCY CONTRACTS
                     Investing in the securities of foreign companies and the
                     utilization of forward foreign currency contracts involve
                     special risks and considerations not typically associated
                     with
                     investing in U.S. companies. These risks and considerations
                     include differences in accounting, auditing and financial
                     reporting standards, generally higher commission rates on
                     foreign portfolio transactions, the possibility of
                     expropriation or confiscatory taxation,
 
                                                                               6
<PAGE>
   
                     adverse changes in investment or exchange control
                     regulations, political instability that could affect U.S.
                     investment in foreign countries and potential restrictions
                     of the flow of international capital and currencies.
    
HIGH YIELD, LOWER RATED BONDS
                     The 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, 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
                     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's advisers 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 Trust
                     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.
 
   
                           Prices for high yield securities may be affected by
                     legislative and regulatory developments. These laws could
                     adversely affect the Portfolio's net asset value and
                     investment practices, the secondary market value for high
                     yield securities, the financial condition of issuers of
                     these securities and the value of outstanding high yield
                     securities.
    
 
                           Lower rated or unrated debt obligations also present
                     risks based on payment expectations. If an issuer calls the
                     obligations 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
 
                                                                               7
<PAGE>
                     Portfolio's investment portfolio and increasing the
                     exposure of the Portfolio to the risks of high yield
                     securities.
 
   
MONEY MARKET SECURITIES
    
   
                     Each Portfolio may hold cash reserves and invest in money
                     market instruments (including securities issued or
                     guaranteed by the U.S. Government, its agencies or
                     instrumentalities, repurchase agreements, certificates of
                     deposit and bankers' acceptances issued by banks or savings
                     and loan associations having net assets of at least $500
                     million as of the end of their most recent fiscal year,
                     high-grade commercial paper and other short-term debt
                     securities) rated at the time of purchase in the top two
                     categories by an NRSRO, or, if not rated, determined by the
                     advisers to be of comparable quality at the time of
                     purchase.
    
 
   
TEMPORARY DEFENSIVE INVESTMENTS
    
   
                     In order to meet liquidity needs or for temporary defensive
                     purposes, each Portfolio may invest up to 100% of its
                     assets in cash and money market securities. To the extent a
                     Portfolio is engaged in temporary defensive investing, the
                     Portfolio will not be pursuing its investment objective.
    
ZERO COUPON OBLIGATIONS
                     Zero coupon obligations may be subject to greater
                     fluctuations in value due to interest rate changes than
                     interest bearing obligations. A Portfolio will be required
                     to include the imputed interest in zero coupon obligations
                     in its current income. Because a Portfolio distributes all
                     of its net investment income to shareholders, a Portfolio
                     may have to sell portfolio securities to distribute the
                     income attributable to these obligations and securities at
                     a time when the advisers would not have chosen to sell such
                     obligations or securities, and which may result in a
                     taxable gain or loss.
 
   
                           For additional information regarding the Portfolios'
                     permitted investments, see "Description of Permitted
                     Investments and Risk Factors" in this Prospectus and
                     "Description of Permitted Investments" in the Statement of
                     Additional Information. For a description of the above
                     ratings, see "Description of Ratings" in the "Appendix" to
                     this Prospectus.
    
 
INVESTMENT LIMITATIONS
        ________________________________________________________________________
 
                     The investment objectives and certain of the investment
                     limitations are fundamental policies of the Portfolios.
                     Fundamental policies cannot be changed with respect to the
                     Trust or a Portfolio without the consent of the holders of
                     a majority of the Trust's or that Portfolio's outstanding
                     shares.
 
                     NO PORTFOLIO MAY:
 
                     1. With respect to 75% of its assets, (i) purchase
                       securities of any issuer (except securities issued or
                       guaranteed by the United States Government, its agencies
                       or instrumentalities) if, as a result, more than 5% of
                       its total assets would be invested in the securities of
                       such issuer; or (ii) acquire more than 10% of the
                       outstanding voting securities of any one issuer.
 
                     2. Purchase any securities which would cause more than 25%
                       of the total assets of the Portfolio to be invested in
                       the securities of one or more issuers conducting their
 
                                                                               8
<PAGE>
                       principal business activities in the same industry,
                       provided that this limitation does not apply to
                       investments in obligations issued or guaranteed by the
                       United States Government, its agencies or
                       instrumentalities.
 
   
                     3. 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.
    
 
                     The foregoing percentage limitations will apply at the time
                     of the purchase of a security. Additional fundamental and
                     non-fundamental investment limitations are set forth in the
                     Statement of Additional Information.
THE MANAGER
          ______________________________________________________________________
 
   
                     SEI Fund Management ("SEI Management") provides the Trust
                     with overall management services, regulatory reporting, all
                     necessary office space, equipment, personnel and
                     facilities, and acts as dividend disbursing agent. In
                     addition, SEI Management also serves as transfer agent (the
                     "Transfer Agent") to the Class A shares of the Trust.
    
 
   
                           For its management services, SEI Management is
                     entitled to a fee, which is calculated daily and paid
                     monthly, at an annual rate of .28% of the average daily net
                     assets of the Core Fixed Income Portfolio and .35% of the
                     average daily net assets of the High Yield Bond Portfolio.
                     SEI Management has voluntarily agreed to waive a portion of
                     its fees in order to limit the operating expenses of each
                     Portfolio. SEI Management reserves the right, in its sole
                     discretion, to terminate this voluntary fee waiver at any
                     time.
    
 
   
                           For the fiscal year ended September 30, 1997, the
                     Portfolios paid SEI Management the following management
                     fees (based on each Portfolio's average daily net assets
                     after fee waivers): Core Fixed Income Portfolio, .26%; and
                     High Yield Bond Portfolio, .30%.
    
THE ADVISER
         _______________________________________________________________________
   
SEI INVESTMENTS MANAGEMENT CORPORATION
    
   
                     SEI Investments Management Corporation ("SIMC") serves as
                     investment adviser to each Portfolio. SIMC is a
                     wholly-owned subsidiary of SEI Investments Company ("SEI
                     Investments"), a financial services company. The principal
                     business address of SIMC and SEI Investments is Oaks,
                     Pennsylvania 19456. SEI Investments was founded in 1968 and
                     is a leading provider of investment solutions to banks,
                     institutional investors, investment advisers and insurance
                     companies. Affiliates of SIMC have provided consulting
                     advice to institutional investors for more than 20 years,
                     including advice regarding the selection and evaluation of
                     investment advisers. SIMC currently serves as manager or
                     administrator to more than 46 investment companies,
                     including more than 345 portfolios, which investment
                     companies had more than $99.9 billion in assets as of
                     September 30, 1997.
    
 
                                                                               9
<PAGE>
   
                           SIMC acts as the investment adviser to the Portfolios
                     and operates as a "manager of managers." As Adviser, SIMC
                     oversees the investment advisory services provided to the
                     Portfolios and manages the cash portion of the Portfolios'
                     assets. Pursuant to separate sub-advisory agreements with
                     SIMC, and under the supervision of SIMC and the Board of
                     Trustees, the sub-advisers are responsible for the
                     day-to-day investment management of all or a discrete
                     portion of the assets of the Portfolios. The sub-advisers
                     are selected based primarily upon the research and
                     recommendations of SIMC, which evaluates quantitatively and
                     qualitatively each sub-adviser's skills and investment
                     results in managing assets for specific asset classes,
                     investment styles and strategies. Subject to Board review,
                     SIMC allocates and, when appropriate, reallocates the
                     Portfolios' assets among sub-advisers, monitors and
                     evaluates sub-adviser performance, and oversees sub-adviser
                     compliance with the Portfolios' investment objectives,
                     policies and restrictions. SIMC HAS THE ULTIMATE
                     RESPONSIBILITY FOR THE INVESTMENT PERFORMANCE OF THE
                     PORTFOLIOS DUE TO ITS RESPONSIBILITY TO OVERSEE
                     SUB-ADVISERS AND RECOMMEND THEIR HIRING, TERMINATION AND
                     REPLACEMENT.
    
 
   
                           For these advisory services, SIMC is entitled to a
                     fee, which is calculated daily and paid monthly, at an
                     annual rate of .275% of the Core Fixed Income Portfolio's
                     average daily net assets and .4875% of the High Yield Bond
                     Porfolio's average daily net assets.
    
 
   
                           For the fiscal year ended September 30, 1997, SIMC
                     received an advisory fee of .275% of the Core Fixed Income
                     Portfolio's average daily net assets and .4875% of the High
                     Yield Bond Portfolio's average daily net assets. SIMC paid
                     the sub-advisers a fee based on a percentage of the average
                     monthly market value of the assets managed by each
                     sub-adviser out of its advisory fee.
    
 
   
                           SIMC and the Trust have obtained an exemptive order
                     from the Securities and Exchange Commission (the "SEC")
                     that permits SIMC, with the approval of the Trust's Board
                     of Trustees, to retain sub-advisers unaffiliated with SIMC
                     for the Portfolios without submitting the sub-advisory
                     agreements to a vote of the Portfolios' shareholders. The
                     exemptive relief permits the disclosure of only the
                     aggregate amount payable by SIMC under all such
                     sub-advisory agreements. The Portfolios will notify
                     shareholders in the event of any addition or change in the
                     identity of its sub-advisers.
    
THE SUB-ADVISERS
               _________________________________________________________________
BEA ASSOCIATES
   
                     BEA Associates ("BEA") serves as Sub-Adviser for the High
                     Yield Bond Portfolio. BEA is a general partnership
                     organized under the laws of the State of New York which,
                     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. BEA 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 a diversified asset
                     manager, handling global equity, balanced, fixed income and
                     derivative securities accounts for private individuals, as
                     well as corporate
    
 
                                                                              10
<PAGE>
   
                     pension and profit-sharing plans, state pension funds,
                     union funds, endowments and other charitable institutions.
                     As of September 30, 1997, BEA managed approximately $34.5
                     billion in assets.
    
 
   
                           The Portfolio's assets have been managed by Richard
                     J. Lindquist, CFA, since its inception. Mr. Lindquist
                     joined BEA in 1995 as a result of BEA's acquisition of CS
                     First Boston Investment Management, and has had 14 years of
                     investment management 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. Prior to joining Prudential, Mr. Lindquist was
                     managing high yield funds at T. Rowe Price.
    
BLACKROCK FINANCIAL MANAGEMENT, INC.
   
                     BlackRock Financial Management, Inc. ("BlackRock") serves
                     as Sub-Adviser to a portion of the assets of the 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 September 30, 1997, BlackRock had $51.7
                     billion in assets under management. BlackRock provides
                     investment advice to investment companies, trusts,
                     charitable organizations, pension and profit sharing plans
                     and government entities. BlackRock is wholly-owned by PNC
                     Asset Management Group, Inc., a wholly-owned subsidiary of
                     PNC Bank, N.A. whose ultimate parent is PNC Bank Corp., One
                     PNC Plaza, Pittsburgh, Pennsylvania 15265. In December
                     1997, PNC Bank Corp. announced a reorganization of its
                     subsidiary PNC Asset Management Group to integrate its
                     investment management business. The following companies
                     will be merged in early 1998 to form a single company under
                     the name BlackRock Financial Management, BlackRock, PNC
                     Institutional Management Co. (PIMC), Provident Capital
                     Management (PCM), PNC Equity Advisor Co. (PEAC) and
                     CastleInternational Asset Management, as well as Provident
                     Advisors and Compass Capital Group.
    
 
   
                           BlackRock employs a team approach in managing the
                     Portfolio; however, the portfolio managers who have
                     day-to-day responsibility for the Portfolio are Keith
                     Anderson and Andrew Phillips. Mr. Anderson is a Managing
                     Director and Co-Head of Portfolio Management at BlackRock,
                     and has 14 years experience investing in fixed income
                     securities. Mr. Phillips is a Principal and portfolio
                     manager with primary responsibility for the management of
                     the firm's investment activities in fixed-rate mortgage
                     securities.
    
   
FIRSTAR INVESTMENT RESEARCH & MANAGEMENT COMPANY, LLC
    
   
                     Firstar Investment Research & Management Company, LLC
                     ("FIRMCO") serves as Sub-Adviser to a portion of the assets
                     of the Core Fixed Income Portfolio. FIRMCO is a registered
                     investment adviser with its principal business address at
                     777 East Wisconsin Avenue, Suite 800, Milwaukee, Wisconsin
                     53202. FIRMCO was founded in 1986, and as of September 30,
                     1997, it had approximately $22.4 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
    
 
                                                                              11
<PAGE>
                     include pension and profit sharing plans, trusts and
                     estates and one other investment company.
 
   
                           Mr. Charles Groeschell, a Senior Vice President of
                     FIRMCO, has been employed by FIRMCO or its affiliates since
                     1983, and has 15 years experience in fixed income
                     investment management.
    
WESTERN ASSET MANAGEMENT COMPANY
   
                     Western Asset Management Company ("Western") serves as
                     Sub-Adviser to a portion of the assets of the 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 September 30, 1997, Western managed
                     approximately $32.3 billion in client assets, including
                     $4.6 billion of investment company assets.
    
 
   
                           Kent S. Engel, Director and Chief Investment Officer
                     of Western, is primarily responsible for the day-to-day
                     management of the portion of the Portfolio's assets
                     allocated to Western. Mr. Engel has been with Western and
                     its predecessor since 1969.
    
 
DISTRIBUTION AND
SHAREHOLDER SERVICING
      __________________________________________________________________________
 
   
                     SEI Investments Distribution Co. (the "Distributor"), a
                     wholly-owned subsidiary of SEI Investments, serves as each
                     Portfolio's distributor pursuant to a distribution
                     agreement with the Trust. The Small Cap Growth Portfolio
                     has adopted a distribution plan for its Class D shares (the
                     "Class D Plan") pursuant to Rule 12b-1 under the Investment
                     Company Act of 1940 (the "1940 Act").
    
 
   
                           The Portfolios have adopted a shareholder service
                     plan for Class A shares (the "Class A Service Plan") under
                     which firms, including the Distributor, that provide
                     shareholder and administrative services may receive
                     compensation therefor. Under the Class A Service Plan, the
                     Distributor may provide those services itself, or may enter
                     into arrangements under which third parties provide such
                     services and are compensated by the Distributor. Under such
                     arrangements, the Distributor may retain as profit any
                     difference between the fee it receives and the amount it
                     pays such third parties. In addition, the Portfolios may
                     enter into such arrangements directly. Under the Class A
                     Service Plan, a Portfolio may pay the Distributor a
                     negotiated fee at a rate of up to .25% annually of the
                     average daily net assets of such Portfolio attributable to
                     Class A shares that are subject to the arrangement in
                     return for provision of a broad range of shareholder and
                     administrative services, including: maintaining client
                     accounts; arranging for bank wires; responding to client
                     inquiries concerning services provided for investments;
                     changing dividend options; account designations and
                     addresses; providing sub-accounting; providing information
                     on share positions to clients; forwarding shareholder
                     communications to clients; processing purchase, exchange
                     and redemption orders; and processing dividend payments.
    
 
                                                                              12
<PAGE>
                           It is possible that an institution may offer
                     different classes of shares to its customers and thus
                     receive different compensation with respect to different
                     classes. These financial institutions may also charge
                     separate fees to their customers.
 
                           The Trust may execute brokerage or other agency
                     transactions through the Distributor, for which the
                     Distributor may receive compensation.
 
                           The Distributor may, from time to time and at its own
                     expense, provide promotional incentives, in the form of
                     cash or other compensation, to certain financial
                     institutions whose representatives have sold or are
                     expected to sell significant amounts of the Portfolios'
                     shares.
 
PURCHASE AND
REDEMPTION OF SHARES
    ____________________________________________________________________________
 
   
                     Financial institutions may acquire Class A shares of the
                     Portfolios for their own accounts or as record owner on
                     behalf of fiduciary, agency or custody accounts by placing
                     orders with the Transfer Agent (or its authorized agent).
                     Institutions that use certain SEI proprietary systems may
                     place orders electronically through those systems.
                     Financial institutions may impose an earlier cut-off time
                     for receipt of purchase orders directed through them to
                     allow for processing and transmittal of these orders to the
                     Transfer Agent for effectiveness the same day. Financial
                     institutions that purchase shares for the accounts of their
                     customers may impose separate charges on these customers
                     for account services.
    
 
                           Shares of each Portfolio may be purchased or redeemed
                     on days on which the New York Stock Exchange is open for
                     business ("Business Days"). The minimum initial investment
                     in a Portfolio is $100,000; however, the minimum investment
                     may be waived at the Distributor's discretion. All
                     subsequent purchases must be at least $1,000.
 
   
                           Shareholders who desire to purchase shares for cash
                     must place their orders with the Transfer Agent (or its
                     authorized agent) prior to the determination of net asset
                     value on any Business Day for the order to be accepted on
                     that Business Day. Purchase orders received after the
                     determination of net asset value on any Business Day will
                     be effected at the next Business Day's net asset value.
                     Generally, payment for fund shares must be transmitted on
                     the next Business Day following the day the order is
                     placed. Payment for such shares may only be transmitted or
                     delivered in federal funds to the wire agent. 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 purchase
                     order. In addition, because excessive trading (including
                     short-term "market timing" trading) can hurt a Portfolio's
                     performance, each Portfolio 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
    
 
                                                                              13
<PAGE>
                     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.
 
   
                           Purchases will be made in full and fractional shares
                     of the Portfolios calculated to three decimal places. The
                     Trust will send shareholders a statement of shares owned
                     after each transaction. The purchase price of shares is the
                     net asset value next determined after a purchase order is
                     received and accepted by the Trust. The net asset value per
                     share of each Portfolio is determined by dividing the total
                     market value of a Portfolio's investments and other assets,
                     less any liabilities, by the total number of outstanding
                     shares of that Portfolio. Net asset value per share is
                     determined daily at the close of regular trading on the New
                     York Stock Exchange (currently 4:00 p.m., Eastern time) on
                     each Business Day.
    
 
   
                           If there is no readily ascertainable market value for
                     a security, SEI Management will make a good faith
                     determination as to the "fair value" of the security.
                     Securities having maturities of 60 days or less at the time
                     of purchase will be valued using the amortized cost method
                     (described in the Statement of Additional Information).
    
 
   
                           Shareholders who desire to redeem shares of the
                     Portfolios must place their redemption orders with the
                     Transfer Agent (or its authorized agent) prior to the
                     determination of net asset value, on any Business Day.
                     Redemption orders received after the determination of net
                     asset value will be effected at the next Business Day's net
                     asset value. The redemption price is the net asset value
                     per share of the Portfolio next determined after receipt by
                     the Transfer Agent of the redemption order. Payment on
                     redemption will be made as promptly as possible and, in any
                     event, within seven days after the redemption order is
                     received.
    
 
   
                           Shares of a Portfolio may be purchased in exchange
                     for securities included in the Portfolio subject to SIMC's
                     determination that the securities are acceptable.
                     Securities accepted in an exchange will be valued at the
                     market value. All accrued interest and subscription of
                     other rights which are reflected in the market price of
                     accepted securities at the time of valuation become the
                     property of the Trust and must be delivered by the
                     Shareholder to the Trust upon receipt from the issuer.
    
 
   
                           SIMC and SEI Management will not accept securities
                     for a Portfolio unless (1) such securities are appropriate
                     in the Portfolio at the time of the exchange; (2) such
                     securities are acquired for investment and not for resale;
                     (3) the Shareholder represents and agrees that all
                     securities offered to the Trust for the Portfolio are not
                     subject to any restrictions upon their sale by the
                     Portfolio under the Securities Act of 1933, or otherwise;
                     (4) such securities are traded on the American Stock
                     Exchange, the New York Stock Exchange or on NASDAQ in an
                     unrelated transaction with a quoted sales price on the same
                     day the exchange valuation is made or, if not listed on
                     such exchanges or on NASDAQ, have prices available from an
                     independent pricing service approved by the Trust's Board
                     of Trustees; and (5) the securities may be acquired under
                     the investment restrictions applicable to the Portfolio.
    
 
                                                                              14
<PAGE>
   
                           Purchase and redemption orders may be placed by
                     telephone. 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 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 shareholders
                     experience difficulties placing redemption orders by
                     telephone, shareholders may wish to consider placing their
                     order by other means.
PERFORMANCE
          ______________________________________________________________________
 
                     From time to time, a Portfolio 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 Portfolio refers to the
                     annualized income generated by an investment in the
                     Portfolio 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 Portfolio refers to the average
                     compounded rate of return to a hypothetical investment
                     redeemed at the end of the specified period covered by the
                     total return figure, for designated time periods (including
                     but not limited to, the period from which the Portfolio
                     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 Portfolio
                     may also be quoted as a dollar amount or on an aggregate
                     basis, an actual basis, without inclusion of any front-end
                     or contingent sales charges, or with a reduced sales charge
                     in advertisements distributed to investors entitled to a
                     reduced sales charge.
 
                           A Portfolio 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. A Portfolio 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. A Portfolio 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. A Portfolio may also quote financial
                     and business publications and periodicals as they relate to
                     fund management, investment philosophy, and investment
                     techniques.
 
                                                                              15
<PAGE>
                           A Portfolio 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.
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 income tax treatment of a
                     Portfolio or its shareholders. In addition, state and local
                     tax consequences of an investment in a Portfolio 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.
TAX STATUS OF THE PORTFOLIOS
                     A Portfolio is treated as a separate entity for federal
                     income tax purposes, and is not combined with the Trust's
                     other portfolios. Each Portfolio intends to continue to
                     qualify for the special tax treatment afforded regulated
                     investment companies ("RICs") under Subchapter M of the
                     Internal Revenue Code of 1986, as amended, so as to be
                     relieved of federal income tax on net investment company
                     taxable income (including the excess, if any, of net
                     short-term capital gains over net long-term capital losses)
                     and net capital gains (the excess of net long-term capital
                     gains over net short-term capital losses) distributed to
                     shareholders.
TAX STATUS OF DISTRIBUTIONS
   
                     Each Portfolio distributes substantially all of its net
                     investment company taxable income to shareholders.
                     Dividends from a Portfolio's net investment company taxable
                     income are taxable to its shareholders as ordinary income
                     (whether received in cash or in additional shares).
                     Distributions to shareholders of net capital gains of the
                     Portfolio also will not qualify for the dividends received
                     deduction and will be taxable to shareholders as long-term
                     capital gain, taxable at the rate of 20% for property held
                     for more than 18 months and at the rate of 28% for property
                     held for more than one year but not for more than 18
                     months, whether received in cash or additional shares, and
                     regardless of how long a shareholder has held the shares.
                     Each Portfolio will provide annual reports to shareholders
                     of the federal income tax status of all distributions.
    
 
                           Dividends declared by a Portfolio 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 Portfolio and received by
                     the shareholders on December 31 of the year declared if
                     paid by a Portfolio at any time during the following
                     January.
 
                           Income received directly by a Portfolio on direct
                     U.S. obligations is exempt from tax at the state level and
                     may be exempt, depending on the state, when received by a
 
                                                                              16
<PAGE>
                     shareholder as income dividends from a Portfolio provided
                     certain state-specific conditions are satisfied. Interest
                     received on repurchase agreements collateralized by U.S.
                     government obligations normally is not exempt from state
                     tax.
 
                           Each Portfolio intends to make sufficient
                     distributions to avoid liability for the federal excise tax
                     applicable to RICs.
 
                           Each sale, exchange or redemption of a Portfolio's
                     shares generally is a taxable transaction to the
                     shareholder.
GENERAL INFORMATION
                  ______________________________________________________________
THE TRUST
                     The Trust was organized as a Massachusetts business trust
                     under a Declaration of Trust dated October 20, 1986. The
                     Declaration of Trust permits the Trust to offer separate
                     series ("portfolios") of shares and different classes of
                     each portfolio. All consideration received by the Trust for
                     shares of any class of any portfolio and all assets of such
                     portfolio or class belong to that portfolio or class,
                     respectively, and would be subject to the 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, litigation and other
                     extraordinary expenses, brokerage costs, interest charges,
                     taxes and organization expenses.
 
                           Certain shareholders in one or more of the Portfolios
                     may obtain asset allocation services from the Adviser and
                     other financial intermediaries with respect to their
                     investments in such Portfolios. If a sufficient amount of a
                     Portfolio's assets are subject to such asset allocation
                     services, a Portfolio may incur higher transaction costs
                     and a higher portfolio turnover rate than would otherwise
                     be anticipated as a result of redemptions and purchases of
                     Portfolio shares pursuant to such services. Further, to the
                     extent that the Adviser is providing asset allocation
                     services and providing investment advice to the Portfolios,
                     it may face conflicts of interest in fulfilling its
                     responsibilities because of the possible differences
                     between the interests of its asset allocation clients and
                     the interests of the Portfolios.
TRUSTEES OF THE TRUST
                     The management and affairs of the Trust are supervised by
                     the Trustees under the laws of the Commonwealth of
                     Massachusetts. The Trustees have approved contracts under
                     which, as described above, certain companies provide
                     essential management services to the Trust.
 
                                                                              17
<PAGE>
VOTING RIGHTS
                     Each share held entitles the shareholder of record to one
                     vote. The shareholders of each Portfolio or class will vote
                     separately on matters pertaining solely to that Portfolio
                     or class, such as any distribution plan. 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 statements
                     semi-annually and audited financial statements annually.
                     The Trust furnishes proxy statements and other reports to
                     shareholders of record.
SHAREHOLDER INQUIRIES
                     Shareholder inquiries should be directed to the Manager,
                     SEI Fund Management, Oaks, Pennsylvania 19456.
DIVIDENDS
                     Substantially all of the net investment income (exclusive
                     of capital gains) of each Portfolio is declared daily and
                     paid monthly as a dividend. Currently, net capital gains
                     (the excess of net long-term capital gain over net
                     short-term capital loss) realized, if any, will be
                     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 SEI Management
                     at least 15 days prior to the distribution.
 
   
                           Dividends and capital gains of each Portfolio 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 a dividend or
                     capital gains distributions, a shareholder will pay the
                     full price for the share and receive some portion of the
                     price back as a taxable dividend or distribution.
    
COUNSEL AND INDEPENDENT ACCOUNTANTS
                     Morgan, Lewis & Bockius LLP serves as counsel to the Trust.
                     Price Waterhouse LLP serves as the independent accountants
                     of the Trust.
CUSTODIAN AND WIRE AGENT
                     CoreStates Bank, N.A., Broad and Chestnut Streets, P.O. Box
                     7618, Philadelphia, Pennsylvania 19101 (the "Custodian"),
                     acts as custodian and wire agent of the Trust's assets. The
                     Custodian holds cash, securities and other assets of the
                     Trust as required by the 1940 Act.
 
                                                                              18
<PAGE>
DESCRIPTION OF
PERMITTED INVESTMENTS
AND
RISK FACTORS
          ______________________________________________________________________
 
                     The following is a description of the permitted investment
                     practices for the Portfolios, and the associated risk
                     factors:
ASSET-BACKED SECURITIES
                     Asset-backed securities are securities secured by
                     non-mortgage assets such as company receivables, truck and
                     auto loans, leases and credit card receivables. Such
                     securities are generally issued as pass-through
                     certificates, which represent undivided fractional
                     ownership interests in the underlying pools of assets. Such
                     securities also may be debt instruments, which are also
                     known as collateralized obligations and are generally
                     issued as the debt of a special purpose entity, such as a
                     trust, organized solely for the purpose of owning such
                     assets and issuing such debt.
CONVERTIBLE SECURITIES
                     Convertible securities are corporate securities that are
                     exchangeable for a set number of another security at a
                     prestated price. Convertible securities typically have
                     characteristics similar to both fixed-income and equity
                     securities. Because of the conversion feature, the market
                     value of a convertible security tends to move with the
                     market value of the underlying stock. The value of a
                     convertible security is also affected by prevailing
                     interest rates, the credit quality of the issuer, and any
                     call provisions.
DERIVATIVES
   
                     Derivatives are securities that derive their value from
                     other securities, assets or indices. The following are
                     considered derivative securities: options on futures,
                     futures, options (e.g., puts and calls), swap agreements,
                     mortgage-backed securities (e.g., CMOs, REMICs, IOs and
                     POs), when-issued 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). See elsewhere in
                     this "Description of Permitted Investments and Risk
                     Factors" for discussions of certain of these instruments.
    
FORWARD FOREIGN CURRENCY CONTRACTS
   
                     A forward contract involves an obligation to purchase or
                     sell a specific currency amount at a future date, agreed
                     upon by the parties, at a price set at the time of the
                     contract. A Portfolio may 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 a Portfolio's securities
                     denominated in such foreign currency.
    
 
   
                           By entering into forward foreign currency contracts,
                     a Portfolio will seek to protect the value of its
                     investment securities against a decline in the value of a
                     currency. However, these forward foreign currency contracts
                     will not eliminate fluctuations in the underlying prices of
                     the securities. Rather, they simply establish a rate of
                     exchange which one can obtain at some future point in time.
                     Although such contracts tend to minimize the risk of
    
 
                                                                              19
<PAGE>
   
                     loss due to a decline in the value of the hedged currency,
                     they also tend to limit any potential gain which might
                     result should the value of such currency increase.
    
FUTURES AND OPTIONS ON FUTURES
                     Futures contracts provide for the future sale by one party
                     and purchase by another party of a specified amount of a
                     specific security at a specified future time and at a
                     specified price. An option on a futures contract gives the
                     purchaser the right, in exchange for a premium, to assume a
                     position in a futures contract at a specified exercise
                     price during the term of the option. A Portfolio may use
                     futures contracts and related options for bona fide hedging
                     purposes, to offset changes in the value of securities held
                     or expected to be acquired or be disposed of, to minimize
                     fluctuations in foreign currencies, or to gain exposure to
                     a particular market or instrument. A Portfolio will
                     minimize the risk that it will be unable to close out a
                     futures contract by only entering into futures contracts
                     that are traded on national futures exchanges.
 
   
                           An index futures contract is a bilateral agreement
                     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 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 bonds comprising the index is made;
                     generally contracts are closed out prior to the expiration
                     date of the contract.
    
 
   
                           In order to avoid leveraging and related risks, when
                     a Portfolio invests in futures contracts, it will cover its
                     position by depositing an amount of cash or liquid
                     securities equal to the market value of the futures
                     positions held, less margin deposits, in a segregated
                     account and that amount will be marked to market on a daily
                     basis.
    
 
                           A Portfolio may enter into futures contracts and
                     options on futures contracts traded on an exchange
                     regulated by the Commodities Futures Trading Commission
                     ("CFTC"), so 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 the Portfolio's net assets.
 
   
                           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 options on
                     futures.
    
ILLIQUID SECURITIES
                     Illiquid securities are securities that cannot be disposed
                     of within seven business days at approximately the price at
                     which they are being carried on a Portfolio's books.
                     Illiquid securities include demand instruments with demand
                     notice periods exceeding seven days,
 
                                                                              20
<PAGE>
                     securities for which there is no active secondary market,
                     and repurchase agreements with durations (or maturities)
                     over seven days in length.
JUNK BONDS
   
                     Securities 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. The market for these
                     securities may be less active, causing market price
                     volatility and limited liquidity in the secondary market.
                     This may limit a Portfolio's ability to sell such
                     securities at their market value. In addition, the market
                     for these securities may also 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.
    
 
   
                           Throughout the year ended September 30, 1997, the
                     High Yield Bond Portfolio invested in securities that are
                     rated below investment grade. The following is the average
                     bond rating for the period as rated by Standard & Poor's
                     Corporation:
    
 
   
<TABLE>
<S>        <C>
AAA              --%
BBB            0.52%
BB            13.63%
B             73.62%
CCC            3.34%
Unrated        8.89%
           ---------
Total:       100.00%
           ---------
           ---------
</TABLE>
    
 
MONEY MARKET SECURITIES
   
                     Money market securities are high-quality,
                     dollar-denominated, short-term debt instruments. They
                     consist of: (i) bankers' acceptances, certificates of
                     deposits, notes and time deposits of highly-rated U.S.
                     banks and U.S. branches of foreign banks; (ii) U.S.
                     Treasury obligations and obligations issued or guaranteed
                     by the 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 of less issued by corporations and
                     governments that issue outstanding high-quality commercial
                     paper or similar securities; and (v) repurchase agreements
                     involving any of the foregoing obligations entered into
                     with highly-rated banks and broker-dealers.
    
MORTGAGE-BACKED SECURITIES
                     Mortgage-backed securities are instruments that entitle the
                     holder to a share of all interest and principal payments
                     from mortgages underlying the security. The mortgages
                     backing these securities include conventional fifteen- and
                     thirty-year fixed-rate mortgages, graduated payment
                     mortgages, adjustable rate mortgages and balloon mortgages.
                     During periods of declining interest rates, prepayment of
                     mortgages underlying mortgage-backed securities can be
                     expected to accelerate. Prepayment of mortgages which
                     underlie securities purchased at a premium often results in
                     capital losses, while prepayment of mortgages purchased at
                     a discount often results in capital gains. Because of these
 
                                                                              21
<PAGE>
                     unpredictable prepayment characteristics, it is often not
                     possible to predict accurately the average life or realized
                     yield of a particular issue.
 
   
                           GOVERNMENT PASS-THROUGH SECURITIES:  These are
                     securities that are issued or guaranteed by a U.S.
                     Government agency representing an interest in a pool of
                     mortgage loans. The primary issuers or guarantors of these
                     mortgage-backed securities are Government National Mortgage
                     Association ("GNMA"), Fannie Mae and the Federal Home Loan
                     Mortgage Corporation ("FHLMC"). GNMA, Fannie Mae and FHLMC
                     guarantee timely distributions of interest to certificate
                     holders. GNMA and Fannie Mae also guarantee timely
                     distributions of scheduled principal. FHLMC generally
                     guarantees only the ultimate collection of principal of the
                     underlying mortgage loan. Fannie Mae and FHLMC obligations
                     are not backed by the full faith and credit of the U.S.
                     Government as GNMA certificates are, but Fannie Mae and
                     FHLMC securities are supported by the instrumentalities'
                     right to borrow from the U.S. Treasury. 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. 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.
    
 
                           COMMERCIAL MORTGAGE-BACKED SECURITIES ("CMBS"):  CMBS
                     are generally multi-class or pass-through securities backed
                     by a mortgage loan or a pool of mortgage loans secured by
                     commercial property, such as industrial and warehouse
                     properties, office buildings, retail space and shopping
                     malls, multifamily properties and cooperative apartments.
                     The commercial mortgage loans that underlie CMBS are
                     generally not amortizing or not fully amortizing. That is,
                     at their maturity date, repayment of the remaining
                     principal balance or "balloon" is due and is repaid through
                     the attainment of an additional loan of sale of the
                     property.
 
   
                           COLLATERALIZED MORTGAGE OBLIGATIONS ("CMOS"):  CMOs
                     are debt obligations of 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 then their stated maturities or final distribution
                     dates, resulting in a loss of all or part of any premium
                     paid. Each class of a CMO is issued with a specific fixed
                     or floating coupon rate and has a stated maturity or final
                     distribution date.
    
 
   
                           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 Fannie Mae,
                     GNMA or FHLMC represent beneficial ownership interests in a
                     REMIC trust consisting principally of mortgage loans or
                     Fannie
    
 
                                                                              22
<PAGE>
   
                     Mae, FHLMC or GNMA-guaranteed mortgage pass-through
                     certificates. 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. Fannie Mae REMIC Certificates
                     are issued and guaranteed as to timely distribution of
                     principal and interest by Fannie Mae. GNMA REMIC
                     Certificates are backed by the full faith and credit of the
                     U.S. Government.
    
 
                           PARALLEL PAY SECURITIES; PAC BONDS:  Parallel pay
                     CMOs and REMICS are structured to provide payments of
                     principal on each payment date to more than one class.
                     These simultaneous payments are taken into account in
                     calculating the stated maturity date or final distribution
                     date of each class, which must be retired by its stated
                     maturity date or final distribution date, but may be
                     retired earlier. Planned Amortization Class CMOs ("PAC
                     Bonds") generally require payments of a specified amount of
                     principal on each payment date. PAC Bonds are always
                     parallel pay CMOs with the required principal payment on
                     such securities having the highest priority after interest
                     has been paid to all classes.
 
   
                           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, while the other class
                     may receive all of the principal payments. The market for
                     SMBs is not as fully developed as other markets; SMBs,
                     therefore, may be illiquid.
    
MORTGAGE DOLLAR ROLLS
   
                     Mortgage "dollar rolls" are transactions in which
                     mortgage-backed securities are sold for delivery in the
                     current month and the seller simultaneously contracts to
                     repurchase substantially similar securities on a specified
                     future date. The difference between the sale price and the
                     purchase price (plus any interest earned on the cash
                     proceeds of the sale) is netted against the interest income
                     foregone on the securities sold to arrive at an implied
                     borrowing rate. Alternatively, the sale and purchase
                     transactions can be executed at the same price, with a
                     Portfolio being paid a fee as consideration for entering
                     into the commitment to purchase.
    
MUNICIPAL SECURITIES
                     Municipal securities consist of (i) debt obligations issued
                     by or on behalf of public authorities to obtain funds to be
                     used for various public facilities, for refunding
                     outstanding obligations, for general operating expenses,
                     and for lending such funds to other public institutions and
                     facilities, and (ii) certain private activity and
                     industrial development bonds issued by or on behalf of
                     public authorities to obtain funds to provide for the
                     construction, equipment, repair or improvement of privately
                     operated facilities.
 
                           General obligation bonds are backed by the taxing
                     power of the issuing municipality. Revenue bonds are backed
                     by the revenues of a project or facility (tolls from a
                     bridge, for example). Certificates of participation
                     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
 
                                                                              23
<PAGE>
                     its financial obligations and the pledge, if any, of real
                     and personal property as security for such payment.
 
                           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.
OPTIONS
   
                     A Portfolio may purchase and write put and call options on
                     indices and enter into related closing transactions. A put
                     option on a security 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 on a security 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.
    
 
                           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.
 
   
                           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.
    
 
   
                           All options written on indices or securities must be
                     covered. When a Portfolio writes an option or security on
                     an index or a foreign currency, it will establish a
                     segregated account containing cash or liquid securities 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.
 
                                                                              24
<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 Permitted Investments.
    
REITS
                     REITs are trusts that invest primarily in commercial real
                     estate or real estate-related loans. The value of interests
                     in REITs may be affected by the value of the property owned
                     or the quality of the mortgages held by the trust.
REPURCHASE AGREEMENTS
                     Agreements by which a Portfolio obtains a security and
                     simultaneously commits to return the security to the seller
                     at an agreed upon price (including principal and interest)
                     on an agreed upon date within a number of days from the
                     date of purchase. Repurchase agreements are considered
                     loans under the 1940 Act.
SECURITIES LENDING
                     In order to generate additional income, a Portfolio may
                     lend its securities pursuant to agreements that require
                     that the loan be continuously secured by collateral
                     consisting of cash or securities of the U.S. Government or
                     its agencies equal to at least 100% of the market value of
                     the loaned securities. A Portfolio continues to receive
                     interest on the loaned securities while simultaneously
                     earning interest on the investment of cash collateral.
                     Collateral is marked to market daily. There may be risks of
                     delay in recovery of the securities or even loss of rights
                     in the collateral should the borrower of the securities
                     fail financially or become insolvent.
SECURITIES OF FOREIGN ISSUERS
                     There are certain risks connected with investing in foreign
                     securities. These include risks of adverse political and
                     economic developments (including possible governmental
                     seizure or nationalization of assets), the possible
                     imposition of exchange controls or other governmental
                     restrictions, less uniformity in accounting and reporting
                     requirements, the possibility that there will be less
                     information on such securities and their issuers available
                     to the public, the difficulty of obtaining or enforcing
                     court judgments abroad, restrictions on foreign investments
                     in other jurisdictions, difficulties in effecting
                     repatriation of capital invested abroad, and difficulties
                     in transaction settlements and the effect of delay on
                     shareholder equity. Foreign securities may be subject to
                     foreign taxes, and may be less marketable than comparable
                     U.S. securities. The value of a Portfolio's investments
                     denominated in foreign currencies will depend on the
                     relative strengths of those currencies and the U.S. dollar,
                     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.
 
                                                                              25
<PAGE>
U.S. GOVERNMENT AGENCY OBLIGATIONS
   
                     Obligations issued or guaranteed by agencies of the U.S.
                     Government, including, among others, the Federal Farm
                     Credit Bank, the Federal Housing Administration and the
                     Small Business Administration, and obligations issued or
                     guaranteed by instrumentalities of the U.S. Government,
                     including, among others, the FHLMC, 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., Fannie Mae securities).
    
U.S. TREASURY OBLIGATIONS
                     U.S. Treasury obligations consist of bills, notes and bonds
                     issued by the U.S. Treasury, as well as separately traded
                     interest and principal component parts of such obligations
                     known as Separately Traded Registered Interest and
                     Principal Securities ("STRIPS") that are transferable
                     through the Federal book-entry system.
U.S. TREASURY RECEIPTS
                     U.S. Treasury receipts are interests in separately traded
                     interest and principal component parts of U.S. Treasury
                     obligations that are issued by banks or brokerage firms and
                     are created by depositing U.S. Treasury obligations into a
                     special account at a custodian bank. The custodian holds
                     the interest and principal payments for the benefit of the
                     registered owners of the certificates of receipts. The
                     custodian arranges for the issuance of the certificates or
                     receipts evidencing ownership and maintains the register.
VARIABLE AND FLOATING RATE INSTRUMENTS
                     Certain obligations may carry variable or floating rates of
                     interest, and may involve a conditional or unconditional
                     demand feature. Such instruments bear interest at rates
                     which are not fixed, but which vary with changes in
                     specified market rates or indices. The interest rates on
                     these securities may be reset daily, weekly, quarterly or
                     some other reset period, and may have a floor or ceiling on
                     interest rate changes.
WARRANTS
                     Warrants are instruments giving holders the right, but not
                     the obligation, to buy equity or fixed income securities of
                     a company at a given price during a specified period.
WHEN-ISSUED AND DELAYED DELIVERY SECURITIES, INCLUDING TBA MORTGAGE-BACKED
SECURITIES
   
                     When-issued or delayed delivery transactions involve the
                     purchase of an instrument with payment and delivery taking
                     place in the future. Delivery of and payment for these
                     securities may occur a month or more after the date of the
                     purchase commitment. The Portfolio will maintain a separate
                     account with liquid securities or cash in an amount at
                     least equal to these commitments. The interest rate
                     realized on these securities is fixed as of the purchase
                     date, and no interest accrues to the Portfolio before
                     settlement.
    
 
                           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.
YANKEE OBLIGATIONS
                     Yankee obligations ("Yankees") are U.S. dollar-denominated
                     instruments of foreign issuers who either register with the
                     Securities and Exchange Commission or issue securities
                     under
 
                                                                              26
<PAGE>
                     Rule 144A of the Securities Exchange Act of 1933, as
                     amended. These consist of debt securities (including
                     preferred or preference stock of non-governmental issuers),
                     certificates of deposit, fixed time deposits and bankers'
                     acceptances issued by foreign banks, and debt obligations
                     of foreign governments or their subdivisions, agencies and
                     instrumentalities, international agencies and supranational
                     entities.
ZERO COUPON, PAY-IN-KIND AND DEFERRED PAYMENT SECURITIES
                     Zero coupon securities are securities that are sold at a
                     discount to par value and securities on which interest
                     payments are not made during the life of the security. Upon
                     maturity, the holder is entitled to receive the par value
                     of the security. While interest payments are not made on
                     such securities, holders of such securities are deemed to
                     have received "phantom income" annually. Because a
                     Portfolio will distribute its "phantom income" to
                     shareholders, to the extent that shareholders elect to
                     receive dividends in cash rather than reinvesting such
                     dividends in additional shares, a Portfolio will have fewer
                     assets with which to purchase income producing securities.
                     In the event of adverse market conditions, zero coupon,
                     pay-in-kind and deferred payment securities may be subject
                     to greater fluctuations in value and may be less liquid
                     than comparably rated securities paying cash interest at
                     regular interest payment periods.
 
                     Additional information on permitted investments and risk
                     factors can be found in the Statement of Additional
                     Information.
 
                                                                              27
<PAGE>
APPENDIX--DESCRIPTION OF CORPORATE BOND RATINGS ________________________________
 
                          MOODY'S RATINGS DEFINITIONS
 
LONG TERM
 
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 protected by a large or by an exceptionally stable
     margin and principal is secure. While the various protective elements are
     likely to change, such changes as can be visualized are most unlikely to
     impair the fundamentally strong position of such issues.
 
Aa
     Bonds which are rated Aa are judged to be of high quality by all standards.
     Together with the Aaa group they comprise what are generally known as
     high-grade bonds. They are rated lower than the best bonds because margins
     of protection may not be as large as in Aaa securities or fluctuation of
     protective elements may be of greater amplitude or there may be other
     elements present which make the long-term risk appear somewhat larger than
     the Aaa securities.
 
A
     Bonds which are rated A possess many favorable investment attributes and
     are to be considered as upper-medium grade obligations. Factors giving
     security to principal and interest are considered adequate, but elements
     may be present which suggest a susceptibility to impairment some time in
     the future.
 
Baa
     Bonds which are rated Baa are considered as medium-grade obligations (i.e.,
     they are neither highly protected nor poorly secured). Interest payments
     and principal security appear adequate for the present but certain
     protective elements may be lacking or may be characteristically unreliable
     over any great length of time. Such bonds lack outstanding investment
     characteristics and in fact have speculative characteristics as well.
 
Ba
     Bonds which are rated Ba are judged to have speculative elements; their
     future cannot be considered as well-assured. Often the protection of
     interest and principal payments may be very moderate and thereby not well
     safeguarded during both good and bad times over the future. Uncertainty of
     position characterizes bonds in this class.
 
B
     Bonds which are rated B generally lack characteristics of the desirable
     investment. Assurance of interest and principal payments or of maintenance
     of other terms of the contract over any long period of time may be small.
 
Caa
     Bonds which are rated Caa are of poor standing. Such issues may be in
     default or there may be present elements of danger with respect to
     principal or interest.
 
Ca
     Bonds which are rated Ca represent obligations which are speculative in a
     high degree. Such issues are often in default or have other marked
     shortcomings.
 
C
   
     Bonds which are rated C are the lowest rated class of bonds, and issues so
     rated can be regarded as having extremely poor prospects of ever attaining
     any real investment standing.
    
 
                                                                             A-1
<PAGE>
                     STANDARD & POOR'S RATINGS DEFINITIONS
 
A Standard & Poor's corporate or municipal debt rating is a current assessment
of 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 creditor's 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
 
INVESTMENT GRADE
 
AAA
     Debt rated 'AAA' has the highest rating assigned by S&P. Capacity to pay
     interest and repay principal is extremely strong.
 
AA
     Debt rated 'AA' has a very strong capacity to pay interest and repay
     principal and differs from the highest rated debt only in small degree.
 
A
     Debt rated 'A' has a strong capacity to pay interest and repay principal,
     although it is somewhat more susceptible to adverse effects of changes in
     circumstances and economic conditions than debt in higher-rated categories.
 
BBB
     Debt rated 'BBB' is regarded as having an adequate capacity to pay interest
     and repay principal. Whereas it normally exhibits adequate protection
     parameters, adverse economic conditions or changing circumstances are more
     likely to lead to a weakened capacity to pay interest and repay principal
     for debt in this category than in higher rated categories.
 
SPECULATIVE GRADE
 
Debt rated 'BB', 'B', 'CCC', 'CC', and 'C' is regarded as having predominantly
speculative characteristics with respect to capacity to pay interest and repay
principal. 'BB' indicates the least degree of speculation and 'C' the highest
degree of
 
                                                                             A-2
<PAGE>
speculation. While such debt will likely have some quality and protective
characteristics, these are outweighed by large uncertainties or major risk
exposure 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 payment 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.
 
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 the 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.
 
                                                                             A-3
<PAGE>
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 ratings. 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.
 
NOTE:  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 '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.
 
                FITCH INVESTOR SERVICES INC. RATINGS DEFINITIONS
 
LONG-TERM
 
AAA
     Bonds rated AAA are judged to be strictly high grade, broadly marketable,
     suitable for investment by trustees and fiduciary institutions liable to
     slight market fluctuation other than through changes in the money rate. The
     prime feature of an AAA bond is a showing of earnings several times or many
     times greater than interest requirements, with such stability of applicable
     earnings that safety is beyond reasonable question whatever changes occur
     in conditions.
 
AA
     Bonds rated AA are judged to be of safety virtually beyond question and are
     readily salable, whose merits are not unlike those of the AAA class, but
     whose margin of safety is less strikingly broad. The issue may be the
     obligation
 
                                                                             A-4
<PAGE>
     of a small company, strongly secured but influenced as to rating by the
     lesser financial power of the enterprise and more local type market.
 
A
     Bonds rated A are considered to be investment grade and of high credit
     quality. The obligor's ability to pay interest and repay principal is
     considered to be strong, but may be more vulnerable to adverse changes in
     economic conditions and circumstances than bonds with higher ratings.
 
BBB
     Bonds rated BBB are considered to be investment grade and of satisfactory
     credit quality. The obligor's ability to pay interest and repay principal
     is considered to be adequate. Adverse changes in economic conditions and
     circumstances, however, are more likely to have adverse impact on these
     bonds, and therefore impair timely payment. The likelihood that the ratings
     of these bonds will fall below investment grade is higher than for bonds
     with higher ratings.
 
BB
     Bonds rated BB are considered speculative. The obligor's ability to pay
     interest and repay principal may be affected over time by adverse economic
     changes. However, business and financial alternatives can be identified
     which could assist the obligor in satisfying its debt service requirements.
 
B
     Bonds rated B are considered highly speculative. While bonds in this class
     are currently meeting debt service requirements, the probability of
     continued timely payment of principal and interest reflects the obligor's
     limited margin of safety and the need for reasonable business and economic
     activity throughout the life of the issue.
 
CCC
     Bonds have certain identifiable characteristics which, if not remedied, may
     lead to default. The ability to meet obligations requires an advantageous
     business and economic environment.
 
CC
     Bonds are minimally protected. Default in payment of interest and/or
     principal seems probable over time.
 
C
     Bonds are in imminent default in payment of interest or principal.
 
DDD
DD
D
     Bonds are in default on interest and/or principal payments. Such bonds are
     extremely speculative and should be valued on the basis of their ultimate
     recovery value in liquidation or reorganization of the obligor. 'DDD'
     represents the lowest potential for recovery on these bonds, and 'D'
     represents the lowest potential for recovery.
 
PLUS (+) MINUS (-)  Plus and minus signs are used with a rating symbol to
indicate the relative position of a credit within the rating category. Plus and
minus signs, however, are not used in the 'AAA', 'DDD', 'DD', or 'D' categories.
 
                   DUFF AND PHELPS, INC. RATINGS DEFINITIONS
 
AAA
     Highest credit quality. The risk factors are negligible, being only
     slightly more than for risk-free U.S. Treasury debt.
 
AA+
AA-
     High credit quality. Protection factors are strong. Risk is modest but may
     vary slightly from time to time because of economic conditions.
 
A+
A-
     Protection factors are average but adequate. However, risk factors are more
     variable and greater in periods of economic stress.
 
                                                                             A-5
<PAGE>
BBB+
BBB-
     Below average protection factors but still considered sufficient for
     prudent investment. Considerable variability in risk during economic
     cycles.
 
BB+
BB
BB-
     Below investment grade but deemed likely to meet obligations when due.
     Present or prospective financial protection factors fluctuate according to
     industry conditions or company fortunes. Overall quality may move up or
     down frequently within this category.
 
B+
B
B-
     Below investment grade and possessing risk that obligations will not be met
     when due. Financial protection factors will fluctuate widely according to
     economic cycles, industry conditions and/or company fortunes. Potential
     exists for frequent changes in the rating within this category or into a
     higher or lower rating grade.
 
CCC
     Well below investment grade securities. Considerable uncertainty exists as
     to timely payment of principal, interest or preferred dividends. Protection
     factors are narrow and risk can be substantial with unfavorable economic/
     industry conditions, and/or with unfavorable company developments.
 
DD
     Defaulted debt obligations. Issuer failed to meet scheduled principal
     and/or interest payments.
 
DP
     Preferred stock with dividend arrearages.
 
                        IBCA LIMITED RATINGS DEFINITIONS
 
AAA
     Obligations rated AAA have the lowest expectation of investment risk.
     Capacity for timely repayment of principal and interest is substantial,
     such that adverse changes in business, economic or financial conditions are
     unlikely to increase investment risk significantly.
 
AA
     Obligations for which there is a very low expectation of investment risk
     are rated AA. Capacity for timely repayment of principal and interest is
     substantial. Adverse changes in business, economic or financial conditions
     may increase investment risk albeit not very significantly.
 
A
     Bonds rated A are obligations for which there is a low expectation of
     investment risk. Capacity for timely repayment of principal and interest is
     strong, although adverse changes in business, economic or financial
     conditions may lead to increased investment risk.
 
BBB
     Bonds rated BBB are obligations for which there is currently a low
     expectation of investment risk. Capacity for timely repayment of principal
     and interest is adequate, although adverse changes in business, economic or
     financial conditions are more likely to lead to increased investment risk
     than for obligations in other categories.
 
BB
     Bonds rated BB are obligations for which there is a possibility of
     investment risk developing. Capacity for timely repayment of principal and
     interest exists, but is susceptible over time to adverse changes in
     business, economic or financial conditions. Bonds rated B are obligations
     for which investment risk exists. Timely repayment of principal and
     interest is not sufficiently protected against adverse changes in business,
     economic or financial conditions.
 
B
     Obligations for which investment risk exists. Timely repayment of principal
     and interest is not sufficiently protected against adverse changes in
     business, economic or financial conditions.
 
                                                                             A-6
<PAGE>
CCC
     Obligations for which there is a current perceived possibility of default.
     Timely repayment of principal and interest is dependent on favorable
     business, economic or financial conditions.
 
CC
     Obligations which are highly speculative or which have a high risk of
     default.
 
C
     Obligations which are currently in default.
 
NOTES:  "+" or "-" may be appended to a rating to denote relative status within
major rating categories.
 
      Ratings of BB and below are assigned where it is considered that
speculative characteristics are present.
 
                     THOMSON BANKWATCH RATINGS DEFINITIONS
 
AAA
     Bonds rated AAA indicate that the ability to repay principal and interest
     on a timely basis is very high.
 
AA
     Bonds rated AA indicate a superior ability to repay principal and interest
     on a timely basis, with limited incremental risk compared to issues rated
     in the highest category.
 
A
     Bonds rated A indicate the ability to repay principal and interest is
     strong. Issues rated A could be more vulnerable to adverse developments
     (both internal and external) than obligations with higher ratings.
 
BBB
     Bonds rated BBB indicate an acceptable capacity to repay principal and
     interest. Issues rated BBB are, however, more vulnerable to adverse
     developments (both internal and external) than obligations with higher
     ratings.
 
BB
     While not investment grade, the BB rating suggests that the likelihood of
     default is considerably less than for lower-rated issues. However, there
     are significant uncertainties that could affect the ability to adequately
     service debt obligations.
 
B
     Issues rated B show a higher degree of uncertainty and therefore greater
     likelihood of default than higher-rated issues. Adverse developments could
     well negatively affect the payment of interest and principal on a timely
     basis.
 
CCC
     Issues rated "CCC" clearly have a high likelihood of default, with little
     capacity to address further adverse changes in financial circumstances.
 
CC
     "CC" is applied to issues that are subordinate to other obligations rated
     "CCC" and are afforded less protection in the event of bankruptcy or
     reorganization.
 
D
     Default
 
Ratings in the Long-Term Debt categories may include a plus (+) or minus (-)
designation, which indicates where within the respective category the issue is
placed.
 
                                                                             A-7
<PAGE>
TABLE OF CONTENTS
               _________________________________________________________________
 
   
<TABLE>
<S>                                                <C>
Annual Operating Expenses........................          2
Financial Highlights.............................          3
The Trust........................................          4
Investment Objectives and Policies...............          4
General Investment Policies and Risk Factors.....          6
Investment Limitations...........................          8
The Manager......................................          9
The Adviser......................................          9
The Sub-Advisers.................................         10
Distribution and Shareholder Servicing...........         12
Purchase and Redemption of Shares................         13
Performance......................................         15
Taxes............................................         16
General Information..............................         17
Description of Permitted Investments and Risk
 Factors.........................................         19
Appendix.........................................        A-1
</TABLE>
    
<PAGE>
   
SEI INSTITUTIONAL MANAGED TRUST
JANUARY 31, 1998
    
- --------------------------------------------------------------------------------
 
LARGE CAP VALUE PORTFOLIO
LARGE CAP GROWTH PORTFOLIO
SMALL CAP VALUE PORTFOLIO
SMALL CAP GROWTH PORTFOLIO
MID-CAP PORTFOLIO
CAPITAL APPRECIATION PORTFOLIO
EQUITY INCOME PORTFOLIO
BALANCED PORTFOLIO
 
- --------------------------------------------------------------------------------
 
   
This Prospectus concisely sets forth information about the above-referenced
portfolios that an investor needs to know before investing. Please read this
Prospectus carefully, and keep it on file for future reference.
    
 
   
A Statement of Additional Information dated January 31, 1998, has been filed
with the Securities and Exchange Commission (the "SEC") and is available upon
request and without charge by writing the Distributor, SEI Investments
Distribution Co., Oaks, Pennsylvania 19456, or by calling 1-800-342-5734. The
Statement of Additional Information is incorporated by reference into this
Prospectus.
    
 
SEI Institutional Managed Trust (the "Trust") is an open-end management
investment company, certain classes of which offer financial institutions a
convenient means of investing their own funds or funds for which they act in a
fiduciary, agency or custodial capacity in professionally managed diversified
portfolios of securities. A portfolio may offer separate classes of shares that
differ from each other primarily in the allocation of certain distribution
expenses, sales charges and minimum investment amounts. This Prospectus offers
the Class A shares of one balanced (fixed income and equity) and seven equity
portfolios (each a "Portfolio" and, together, the "Portfolios") listed above.
 
- --------------------------------------------------------------------------------
 
   
 THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION, NOR HAS THE SECURITIES AND EXCHANGE 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 SHARES INVOLVES RISK, INCLUDING POSSIBLE
 LOSS OF THE PRINCIPAL AMOUNT INVESTED.
<PAGE>
ANNUAL OPERATING EXPENSES (AS A PERCENTAGE OF AVERAGE NET ASSETS)        CLASS A
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                        LARGE CAP  LARGE CAP  SMALL CAP  SMALL CAP               CAPITAL      EQUITY
                                          VALUE     GROWTH      VALUE     GROWTH     MID-CAP   APPRECIATION   INCOME
                                        PORTFOLIO  PORTFOLIO  PORTFOLIO  PORTFOLIO  PORTFOLIO   PORTFOLIO    PORTFOLIO
                                        ---------  ---------  ---------  ---------  ---------  ------------  ---------
<S>                                     <C>        <C>        <C>        <C>        <C>        <C>           <C>
Management Fee/Advisory Fees (AFTER
 FEE WAIVER)                                0.70%      0.70%(1)     1.00%     1.00%     0.74%(1)        0.70%(1)     0.70%(1)
12b-1 Fees                                   None       None       None       None       None          None       None
Total Other Expenses                        0.15%      0.15%      0.11%      0.10%      0.19%         0.14%        0.15%
   Shareholder Servicing Fees           0.10%      0.10%      0.04%      0.04%      0.13%      0.08%         0.09%
</TABLE>
    
 
- --------------------------------------------------------------------------------
 
   
<TABLE>
<S>                                     <C>        <C>        <C>        <C>        <C>        <C>           <C>
Total Operating Expenses (AFTER FEE
 WAIVER)                                    0.85%      0.85%(2)     1.11%     1.10%     0.93%(2)        0.84%(2)     0.85%(2)
</TABLE>
    
 
- --------------------------------------------------------------------------------
 
ANNUAL OPERATING EXPENSES (AS A PERCENTAGE OF AVERAGE NET ASSETS)        CLASS A
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                                                                            BALANCED
                                                                                                            PORTFOLIO
                                                                                                            ---------
<S>                                                                                                         <C>
Management Fee/Advisory Fees (AFTER FEE WAIVER)                                                                 0.69%(1)
12b-1 Fees                                                                                                    None
Total Other Expenses                                                                                            0.06%
  Shareholder Servicing Fees                                                                                0.00%
- ---------------------------------------------------------------------------------------------------------------------
Total Operating Expenses (AFTER FEE WAIVER)                                                                     0.75%(2)
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>
    
 
   
(1) SEI INVESTMENTS MANAGEMENT CORPORATION ("SIMC") AND CERTAIN OF THE
    SUB-ADVISERS (COLLECTIVELY, "ADVISERS") HAVE AGREED TO WAIVE ON A VOLUNTARY
    BASIS, A PORTION OF THEIR FEES, AND THE MANAGEMENT/ADVISORY FEES SHOWN
    REFLECT THESE VOLUNTARY WAIVERS. SUCH FEE WAIVERS ARE VOLUNTARY AND MAY BE
    TERMINATED AT ANY TIME IN THE SOLE DISCRETION OF EACH ENTITY THAT HAS AGREED
    TO WAIVE A PORTION OF ITS FEE. ABSENT SUCH FEE WAIVERS, MANAGEMENT/ADVISORY
    FEES WOULD BE: LARGE CAP GROWTH PORTFOLIO, .75%; MID-CAP PORTFOLIO, .75%;
    CAPITAL APPRECIATION PORTFOLIO, .75%; EQUITY INCOME PORTFOLIO, .75%; AND
    BALANCED PORTFOLIO, .75%.
    
 
   
(2) ABSENT THESE FEE WAIVERS, TOTAL OPERATING EXPENSES FOR THE CLASS A SHARES OF
    THE PORTFOLIOS WOULD BE: LARGE CAP GROWTH PORTFOLIO, .90%; MID-CAP
    PORTFOLIO, .94%; CAPITAL APPRECIATION PORTFOLIO, .89%; EQUITY INCOME
    PORTFOLIO, .90%; AND BALANCED PORTFOLIO, .81%. ADDITIONAL INFORMATION MAY BE
    FOUND UNDER "THE ADVISER," "THE SUB-ADVISERS" AND "THE MANAGER."
    
 
EXAMPLE                                                                  CLASS A
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                                                    1 YR.       3 YRS.       5 YRS.       10 YRS.
                                                                                 -----------  -----------  -----------  -----------
<S>                                                                              <C>          <C>          <C>          <C>
An investor in a Portfolio would pay the following expenses on a $1,000
 investment assuming (1) a 5% annual return and (2) redemption at the end of
 each time period:
  Large Cap Value Portfolio                                                       $       9    $      27    $      47    $     105
  Large Cap Growth Portfolio                                                      $       9    $      27    $      47    $     105
  Small Cap Value Portfolio                                                       $      11    $      35    $      61    $     135
  Small Cap Growth Portfolio                                                      $      11    $      35    $      61    $     134
  Mid-Cap Portfolio                                                               $       9    $      30    $      51    $     114
  Capital Appreciation Portfolio                                                  $       9    $      27    $      47    $     104
  Equity Income Portfolio                                                         $       9    $      27    $      47    $     105
  Balanced Portfolio                                                              $       8    $      24    $      42    $      93
- -----------------------------------------------------------------------------------------------------------------------------------
</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 TABLE 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 THE PORTFOLIOS. THE SMALL CAP GROWTH
PORTFOLIO ALSO OFFERS CLASS D SHARES, WHICH ARE SUBJECT TO THE SAME EXPENSES,
EXCEPT THAT CLASS D SHARES BEAR DIFFERENT DISTRIBUTION COSTS, ADDITIONAL
TRANSFER AGENT COSTS AND SALES CHARGES. A PERSON WHO PURCHASES SHARES THROUGH A
FINANCIAL INSTITUTION MAY BE CHARGED SEPARATE FEES BY THAT INSTITUTION.
ADDITIONAL INFORMATION MAY BE FOUND UNDER "THE MANAGER," "THE ADVISER," "THE
SUB-ADVISERS" AND "DISTRIBUTION AND SHAREHOLDER SERVICING."
 
                                                                               2
<PAGE>
FINANCIAL HIGHLIGHTS
                  ______________________________________________________________
 
   
The following information has been derived from the financial statements audited
by Price Waterhouse LLP, the Trust's independent accountants. Price Waterhouse
LLP's report dated November 25, 1997 on the Trust's financial statements as of
September 30, 1997 is incorporated by reference into the Trust's Statement of
Additional Information. The Trust's financial statements and additional
performance information are set forth in the 1997 Annual Report to Shareholders,
which is available upon request and without charge by calling 1-800-342-5734.
This table should be read in conjunction with the Trust's financial statements
and notes thereto.
    
   
<TABLE>
<CAPTION>
FOR A CLASS A SHARE OUTSTANDING THROUGHOUT THE PERIOD
                           NET ASSET       NET       NET REALIZED AND   DIVIDENDS
                             VALUE     INVESTMENT       UNREALIZED       FROM NET    DISTRIBUTIONS   NET ASSET
                           BEGINNING     INCOME       GAINS (LOSSES)    INVESTMENT   FROM REALIZED   VALUE END    TOTAL
                           OF PERIOD     (LOSS)       ON SECURITIES       INCOME     CAPITAL GAINS   OF PERIOD    RETURN
<S>                        <C>         <C>           <C>                <C>          <C>             <C>         <C>
- -------------------------------------------------------------------------------------------------------------------------
- -------------------------
LARGE CAP VALUE PORTFOLIO
- -------------------------
CLASS A
  1997                      $  14.78     $ 0.28           $ 5.77          $(0.29)       $(1.17)       $  19.37     44.12%
  1996                         13.00       0.32             2.01           (0.26)        (0.29)          14.78     18.33%
  1995                         10.71       0.33             2.44           (0.33)        (0.15)          13.00     26.83%
  1994                         11.54       0.28            (0.46)          (0.27)        (0.38)          10.71     (1.64)%
  1993                         12.49       0.31             0.22           (0.33)        (1.15)          11.54      4.35%
  1992                         12.05       0.34             0.71           (0.33)        (0.28)          12.49      9.17%
  1991                          9.30       0.35             2.92           (0.35)        (0.17)          12.05     35.95%
  1990                         11.75       0.33            (2.16)          (0.38)        (0.24)           9.30    (16.42)%
  1989                          9.45       0.33             2.24           (0.27)       --               11.75     27.58%
  1988(1)                      10.99       0.30            (1.52)          (0.31)        (0.01)           9.45    (10.88)%
- -------------------------
LARGE CAP GROWTH
PORTFOLIO
- -------------------------
  1997                      $  15.03     $ 0.03           $ 6.33          $(0.05)       $(0.94)       $  20.40     44.35%
  1996                         12.75       0.07             2.51           (0.08)        (0.22)          15.03     20.59%
  1995(2)                      10.00       0.11             2.72           (0.08)       --               12.75     37.90%
- -------------------------
SMALL CAP VALUE PORTFOLIO
- -------------------------
  1997                      $  13.17     $ 0.05           $ 5.74          $(0.05)       $(1.06)       $  17.85     47.16%
  1996                         12.19       0.02             1.27           (0.01)        (0.30)          13.17     10.86%
  1995(3)                      10.00       0.03             2.19           (0.03)       --               12.19     29.38%
- -------------------------
SMALL CAP GROWTH
PORTFOLIO
- -------------------------
CLASS A
  1997                      $  20.51     $ 0.02           $ 2.64          $--           $(3.85)       $  19.32     17.23%
  1996                         19.88      (0.08)            4.37           --            (3.66)          20.51     26.56%
  1995                         14.04      (0.14)            5.98           --           --               19.88     41.65%
  1994                         14.67      (0.05)            0.07           --            (0.65)          14.04      0.23%
  1993                         10.65      (0.02)            4.05           (0.01)       --               14.67     37.81%
  1992(4)                      10.00       0.02             0.65           (0.02)       --               10.65     15.07%
- ------------------
MID-CAP PORTFOLIO
- ------------------
CLASS A
  1997                      $  14.96     $ 0.13           $ 5.86          $(0.14)       $(1.25)       $  19.56     43.13%
  1996                         13.04       0.18             1.89           (0.15)       --               14.96     16.03%
  1995                         10.89       0.01             2.14           --           --               13.04     19.78%
  1994                         12.10       0.01            (0.98)          (0.01)        (0.23)          10.89     (8.10)%
  1993(5)                      10.00       0.01             2.10           (0.01)       --               12.10     34.06%
 
<CAPTION>
FOR A CLASS A SHARE OUTST
                                                                                   RATIO OF NET
                                                                                    INVESTMENT
                                                       RATIO OF NET    RATIO OF       INCOME
                                                        INVESTMENT     EXPENSE        (LOSS)
                                           RATIO OF       INCOME      TO AVERAGE    TO AVERAGE
                            NET ASSETS     EXPENSES     (LOSS) TO     NET ASSETS    NET ASSETS    PORTFOLIO   AVERAGE
                              END OF      TO AVERAGE     AVERAGE      (EXCLUDING    (EXCLUDING    TURNOVER   COMMISSION
                           PERIOD (000)   NET ASSETS    NET ASSETS     WAIVERS)      WAIVERS)       RATE       RATE+
<S>                        <C>            <C>          <C>            <C>          <C>            <C>        <C>
- -------------------------
- -------------------------
LARGE CAP VALUE PORTFOLIO
- -------------------------
CLASS A
  1997                       $  866,826      0.85%         1.74%         0.85%         1.74%         67%      $  0.0496
  1996                          515,011      0.83%         2.31%         0.83%         2.31%         75%         0.0531
  1995                          331,692      0.76%         2.92%         0.82%         2.86%         99%        N/A
  1994                          133,178      0.75%         2.51%         0.75%         2.51%         67%        N/A
  1993                          205,157      0.75%         2.64%         0.76%         2.63%         96%        N/A
  1992                          242,065      0.75%         2.79%         0.80%         2.74%         17%        N/A
  1991                          187,876      0.75%         3.11%         0.83%         3.03%         25%        N/A
  1990                          119,763      0.75%         3.05%         0.98%         2.82%         28%        N/A
  1989                          111,810      0.76%         3.31%         1.26%         2.81%         29%        N/A
  1988(1)                        44,841      0.75%         3.37%         1.33%         2.79%         44%        N/A
- -------------------------
LARGE CAP GROWTH
PORTFOLIO
- -------------------------
  1997                       $  800,479      0.85%         0.22%         0.90%         0.17%         73%      $  0.0539
  1996                          482,079      0.82%         0.50%         0.87%         0.45%         90%         0.0602
  1995(2)                       297,377      0.85%         1.15%         0.89%         1.11%         44%        N/A
- -------------------------
SMALL CAP VALUE PORTFOLIO
- -------------------------
  1997                       $  323,337      1.11%         0.37%         1.11%         0.37%         98%      $  0.0510
  1996                          163,177      1.11%         0.15%         1.11%         0.15%        121%         0.0507
  1995(3)                       102,975      1.10%         0.26%         1.12%         0.24%         64%        N/A
- -------------------------
SMALL CAP GROWTH
PORTFOLIO
- -------------------------
CLASS A
  1997                       $  561,414      1.10%        (0.60%)        1.10%        (0.60%)       107%      $  0.0723
  1996                          380,525      1.10%        (0.63)%        1.11%        (0.64)%       167%         0.0529
  1995                          310,238      1.10%        (0.60)%        1.13%        (0.63)%       113%        N/A
  1994                          300,296      1.01%        (0.51)%        1.11%        (0.61)%        97%        N/A
  1993                          193,816      0.97%        (0.25)%        1.14%        (0.42)%        85%        N/A
  1992(4)                        36,191      0.97%         0.49%         1.29%         0.17%         33%        N/A
- ------------------
MID-CAP PORTFOLIO
- ------------------
CLASS A
  1997                       $   35,047      0.93%         0.79%         0.94%         0.78%         92%      $  0.0268
  1996                           24,954      0.77%         1.28%         0.88%         1.17%        101%         0.0124
  1995                           27,898      0.94%         0.04%         1.09%        (0.11)%       108%        N/A
  1994                          108,002      0.93%         0.03%         1.06%        (0.10)%        89%        N/A
  1993(5)                        57,669      0.90%         0.26%         1.12%         0.04%         87%        N/A
</TABLE>
    
 
                                                                               3
<PAGE>
FINANCIAL HIGHLIGHTS (CONTINUED) _______________________________________________
   
<TABLE>
<CAPTION>
FOR A CLASS A SHARE OUTSTANDING THROUGHOUT THE PERIOD
                           NET ASSET       NET       NET REALIZED AND   DIVIDENDS
                             VALUE     INVESTMENT       UNREALIZED       FROM NET    DISTRIBUTIONS   NET ASSET
                           BEGINNING     INCOME       GAINS (LOSSES)    INVESTMENT   FROM REALIZED   VALUE END    TOTAL
                           OF PERIOD     (LOSS)       ON SECURITIES       INCOME     CAPITAL GAINS   OF PERIOD    RETURN
<S>                        <C>         <C>           <C>                <C>          <C>             <C>         <C>
- -------------------------------------------------------------------------------------------------------------------------
- -------------------------
CAPITAL APPRECIATION
PORTFOLIO
- -------------------------
CLASS A
  1997                      $  18.14     $ 0.21           $ 4.65          $(0.22)       $(4.58)       $  18.20     34.02%
  1996                         16.70       0.20             3.18           (0.17)        (1.77)          18.14     22.14%
  1995                         15.18       0.22             2.42           (0.23)        (0.89)          16.70     19.03%
  1994                         16.36       0.24            (0.22)          (0.25)        (0.95)          15.18     (0.11)%
  1993                         15.09       0.32             1.68           (0.30)        (0.43)          16.36     13.50%
  1992                         14.15       0.30             1.23           (0.30)        (0.29)          15.09     11.03%
  1991                         11.21       0.41             3.06           (0.40)        (0.13)          14.15     31.69%
  1990                         13.29       0.35            (1.01)          (0.39)        (1.03)          11.21     (5.75)%
  1989                         10.06       0.31             3.34           (0.28)        (0.14)          13.29     37.43%
  1988(6)                      10.00       0.16             0.03           (0.13)       --               10.06      3.34%
- ------------------------
EQUITY INCOME PORTFOLIO
- ------------------------
CLASS A
  1997                      $  16.40     $ 0.39           $ 4.33          $(0.42)       $(2.68)       $  18.02     33.46%
  1996                         16.07       0.49             2.20           (0.41)        (1.95)          16.40     18.17%
  1995                         14.06       0.55             2.48           (0.55)        (0.47)          16.07     23.00%
  1994                         15.00       0.51            (0.38)          (0.50)        (0.57)          14.06      1.05%
  1993                         13.33       0.51             1.75           (0.51)        (0.08)          15.00     17.34%
  1992                         12.36       0.52             1.05           (0.52)        (0.08)          13.33     13.03%
  1991                         10.09       0.57             2.54           (0.60)        (0.24)          12.36     32.05%
  1990                         12.82       0.62            (2.41)          (0.66)        (0.28)          10.09    (15.02)%
  1989                         10.37       0.49             2.40           (0.42)        (0.02)          12.82     28.53%
  1988(7)                      10.00       0.10             0.34           (0.07)       --               10.37     13.49%
- -------------------
BALANCED PORTFOLIO
- -------------------
CLASS A
  1997                      $  13.94     $ 0.41           $ 2.27          $(0.42)       $(2.14)       $  14.06     22.38%
  1996                         12.76       0.42             1.44           (0.34)        (0.34)          13.94     15.01%
  1995                         11.52       0.34             1.34           (0.34)        (0.10)          12.76     15.05%
  1994                         12.24       0.23            (0.62)          (0.22)        (0.11)          11.52     (3.25)%
  1993                         11.35       0.25             1.29           (0.26)        (0.39)          12.24     14.49%
  1992                         10.70       0.52             0.73           (0.53)        (0.07)          11.35     11.64%
  1991                          9.77       0.65             0.96           (0.68)       --               10.70     15.96%
  1990(8)                      10.00       0.07            (0.30)          --           --                9.77    (15.56)%
 
<CAPTION>
FOR A CLASS A SHARE OUTST
                                                                                   RATIO OF NET
                                                                                    INVESTMENT
                                                       RATIO OF NET    RATIO OF       INCOME
                                                        INVESTMENT     EXPENSE        (LOSS)
                                           RATIO OF       INCOME      TO AVERAGE    TO AVERAGE
                            NET ASSETS     EXPENSES     (LOSS) TO     NET ASSETS    NET ASSETS    PORTFOLIO   AVERAGE
                              END OF      TO AVERAGE     AVERAGE      (EXCLUDING    (EXCLUDING    TURNOVER   COMMISSION
                           PERIOD (000)   NET ASSETS    NET ASSETS     WAIVERS)      WAIVERS)       RATE       RATE+
<S>                        <C>            <C>          <C>            <C>          <C>            <C>        <C>
- -------------------------
- -------------------------
CAPITAL APPRECIATION
PORTFOLIO
- -------------------------
CLASS A
  1997                       $  164,238      0.84%         1.20%         0.89%         1.15%        178%      $  0.0568
  1996                          236,581      0.84%         1.20%         0.86%         1.18%        153%         0.0517
  1995                          310,693      0.84%         1.39%         0.89%         1.34%        107%        N/A
  1994                          729,100      0.79%         1.45%         0.84%         1.40%        109%        N/A
  1993                          776,745      0.75%         2.06%         0.84%         1.97%        119%        N/A
  1992                          536,028      0.75%         2.12%         0.88%         1.99%         84%        N/A
  1991                          248,440      0.75%         3.10%         0.94%         2.91%         83%        N/A
  1990                           47,250      0.75%         2.95%         1.04%         2.66%         96%        N/A
  1989                           47,250      0.76%         2.98%         1.50%         2.24%        122%        N/A
  1988(6)                        17,848      0.76%         3.17%         1.14%         2.79%         87%        N/A
- ------------------------
EQUITY INCOME PORTFOLIO
- ------------------------
CLASS A
  1997                       $  173,766      0.85%         2.38%         0.90%         2.33%         40%      $  0.0582
  1996                          202,823      0.83%         3.00%         0.86%         2.97%         43%         0.0429
  1995                          250,609      0.82%         3.72%         0.88%         3.66%         47%        N/A
  1994                          418,207      0.78%         3.68%         0.84%         3.62%         28%        N/A
  1993                          337,939      0.75%         3.73%         0.85%         3.63%         39%        N/A
  1992                          178,756      0.75%         4.15%         0.87%         4.03%         18%        N/A
  1991                           93,552      0.75%         4.99%         0.86%         4.88%         42%        N/A
  1990                           54,193      0.75%         5.63%         1.02%         5.36%         33%        N/A
  1989                           30,865      0.76%         5.03%         2.62%         3.17%         11%        N/A
  1988(7)                         2,910      1.04%         4.74%         1.18%         4.60%          5%        N/A
- -------------------
BALANCED PORTFOLIO
- -------------------
CLASS A
  1997                       $   51,195      0.75%         3.15%         0.81%         3.09%        197%      $  0.0572
  1996                           57,915      0.75%         2.98%         0.84%         2.89%        143%         0.0382
  1995                           70,464      0.75%         2.92%         0.90%         2.77%        159%        N/A
  1994                           65,480      0.75%         2.05%         0.91%         1.89%        149%        N/A
  1993                           33,807      0.75%         2.24%         0.94%         2.05%        109%        N/A
  1992                            5,974      0.75%         4.83%         1.12%         4.46%        101%        N/A
  1991                            2,174      0.75%         5.68%         2.54%         3.89%         19%        N/A
  1990(8)                           459      0.76%         5.66%         3.23%         3.19%          0%        N/A
</TABLE>
    
 
 (1) LARGE CAP VALUE CLASS A SHARES WERE OFFERED BEGINNING APRIL 20, 1987. ALL
    RATIOS INCLUDING TOTAL RETURN FOR THAT PERIOD HAVE BEEN ANNUALIZED.
 (2) LARGE CAP GROWTH CLASS A SHARES WERE OFFERED BEGINNING DECEMBER 20, 1994.
    ALL RATIOS INCLUDING TOTAL RETURN FOR THAT PERIOD HAVE BEEN ANNUALIZED.
 (3) SMALL CAP VALUE CLASS A SHARES WERE OFFERED BEGINNING DECEMBER 20, 1994.
    ALL RATIOS INCLUDING TOTAL RETURN FOR THAT PERIOD HAVE BEEN ANNUALIZED.
 (4) SMALL CAP GROWTH CLASS A SHARES WERE OFFERED BEGINNING APRIL 20, 1992. ALL
    RATIOS INCLUDING TOTAL RETURN FOR THAT PERIOD HAVE BEEN ANNUALIZED.
 (5) MID-CAP CLASS A SHARES WERE OFFERED BEGINNING FEBRUARY 16, 1993. ALL RATIOS
    INCLUDING TOTAL RETURN FOR THAT PERIOD HAVE BEEN ANNUALIZED.
 (6) CAPITAL APPRECIATION CLASS A SHARES WERE OFFERED BEGINNING MARCH 1, 1988.
    ALL RATIOS INCLUDING TOTAL RETURN FOR THAT PERIOD HAVE BEEN ANNUALIZED.
 (7) EQUITY INCOME CLASS A SHARES WERE OFFERED BEGINNING JUNE 2, 1988. ALL
    RATIOS INCLUDING TOTAL RETURN FOR THAT PERIOD HAVE BEEN ANNUALIZED.
 (8) BALANCED CLASS A SHARES WERE OFFERED BEGINNING SEPTEMBER 6, 1992. ALL
    RATIOS INCLUDING TOTAL RETURN FOR THAT PERIOD HAVE BEEN ANNUALIZED.
  + AVERAGE COMMISSION RATE PAID PER SHARE FOR SECURITY PURCHASES AND SALES
    DURING THE PERIOD. PRESENTATION OF THE RATE IS REQUIRED FOR FISCAL YEARS
    BEGINNING AFTER SEPTEMBER 1, 1995.
 
                                                                               4
<PAGE>
THE TRUST
      __________________________________________________________________________
 
   
SEI INSTITUTIONAL MANAGED TRUST (the "Trust") is an open-end investment
management company that offers units of beneficial interest ("shares") in
separate diversified and non-diversified portfolios. The Small Cap Growth
Portfolio has two separate classes of shares, Class A and Class D, which provide
for variations in distribution and transfer agent costs, sales charges, voting
rights and dividends. This prospectus offers Class A shares of the Trust's Large
Cap Value, Large Cap Growth, Small Cap Value, Small Cap Growth, Mid-Cap, Capital
Appreciation, Equity Income and Balanced Portfolios (each a "Portfolio" and,
together, the "Portfolios"). The investment adviser and investment sub-advisers
to the Portfolios are referred to collectively as the "advisers." Additional
information pertaining to the Trust may be obtained by writing SEI Investments
Distribution Co., Oaks, Pennsylvania 19456, or by calling 1-800-342-5734.
    
 
INVESTMENT OBJECTIVES
AND POLICIES
     ___________________________________________________________________________
LARGE CAP VALUE PORTFOLIO
                     The investment objective of the Large Cap Value Portfolio
                     is long-term growth of capital and income. There can be no
                     assurance that the Portfolio will achieve its investment
                     objective.
 
   
                           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
                     opinion of the advisers, 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. Any remaining assets may be invested in other equity
                     securities and in investment grade fixed income securities.
                     Investment grade fixed income securities are securities
                     that are rated at least BBB by Standard & Poor's
                     Corporation ("S&P") or Baa by Moody's Investors Service,
                     Inc. ("Moody's"). The Portfolio may also borrow money,
                     invest in illiquid securities, when-issued and
                     delayed-delivery securities and shares of other investment
                     companies, and lend its securities to qualified buyers.
    
 
LARGE CAP GROWTH PORTFOLIO
                     The investment objective of the Large Cap Growth Portfolio
                     is capital appreciation. There can be no assurance that the
                     Portfolio will achieve its investment objective.
 
   
                           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
                     opinion of the advisers, possess significant growth
                     potential. Any remaining assets may be invested in
                     investment grade 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. The Portfolio may also borrow money,
                     invest in illiquid securities, when-issued and
                     delayed-delivery securities and shares of other investment
                     companies, and lend its securities to qualified buyers.
    
 
                                                                               5
<PAGE>
SMALL CAP VALUE PORTFOLIO
                     The investment objective of the Small Cap Value Portfolio
                     is capital appreciation. There can be no assurance that the
                     Portfolio will achieve its investment objective.
 
   
                           Under normal market conditions, the Portfolio will
                     invest at least 65% of its total assets in the equity
                     securities of smaller companies (i.e., companies with
                     market capitalizations of less than $1 billion) which, in
                     the opinion of the advisers, 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 investment grade 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. The
                     Portfolio may also borrow money, invest in illiquid
                     securities, Real Estate Investment Trusts ("REITs"),
                     when-issued and delayed-delivery securities and shares of
                     other investment companies, and lend its securities to
                     qualified buyers.
    
 
   
                           The Portfolio's annual turnover rate may exceed 100%.
                     Such a turnover rate may result in higher transaction costs
                     and in additional taxes for shareholders.
    
 
SMALL CAP GROWTH PORTFOLIO
                     The investment objective of the Small Cap Growth Portfolio
                     is long-term capital appreciation. There can be no
                     assurance that the Portfolio will achieve its investment
                     objective.
 
   
                           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 less than $1 billion) which, in
                     the opinion of the advisers, are in an early stage or
                     transitional point in their development and have
                     demonstrated or have the potential for above average
                     capital growth. 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.
    
 
   
                           For temporary defensive purposes, the Portfolio may
                     invest all or a portion of its assets in common stocks of
                     larger, more established companies and in investment grade
                     fixed income securities. The Portfolio may also borrow
                     money, invest in illiquid securities, REITs, when-issued
                     and delayed-delivery securities and shares of other
                     investment companies, and lend its securities to qualified
                     buyers.
    
 
   
                           The Portfolio's annual turnover rate may exceed 100%.
                     Such a turnover rate may result in higher transaction costs
                     and in additional taxes for shareholders.
    
 
MID-CAP PORTFOLIO
                     The investment objective of the Mid-Cap Portfolio is
                     long-term capital appreciation. There can be no assurance
                     that the Portfolio will achieve its investment objective.
 
                           Under normal market conditions, the Portfolio will
                     invest at least 65% of its total assets in equity
                     securities of medium-sized companies (i.e., companies with
                     market capitalizations of $500 million to $5 billion). Such
                     companies are typically well established but have not
                     reached full maturity, and may offer significant growth
                     potential. The advisers will seek to identify companies
                     which, in their opinion, will experience accelerating
 
                                                                               6
<PAGE>
                     earnings, increased institutional ownership or strong price
                     appreciation relative to their industries and broad market
                     averages.
 
   
                           Any remaining assets may be invested in equity
                     securities of larger, more established companies,
                     investment grade fixed income securities or money market
                     securities. For temporary defensive purposes, when the
                     advisers determine that market conditions warrant, the
                     Portfolio may invest all or a portion of its assets in
                     equity securities of larger companies. The Portfolio may
                     also borrow money, invest in illiquid securities,
                     when-issued and delayed-delivery securities and shares of
                     other investment companies, and lend its securities to
                     qualified buyers.
    
 
   
                           The Portfolio's annual turnover rate may exceed 100%.
                     Such a turnover rate may result in higher transaction costs
                     and in additional taxes for shareholders.
    
 
CAPITAL APPRECIATION PORTFOLIO
                     The investment objective of the Capital Appreciation
                     Portfolio is capital appreciation. There can be no
                     assurance that the Portfolio will achieve its investment
                     objective.
 
   
                           Under normal market conditions, at least 65% of the
                     Portfolio's assets will be invested in a diversified
                     portfolio of common stocks (and securities convertible into
                     common stock) which, in the opinion of the advisers, are
                     undervalued in the marketplace at the time of purchase.
                     Dividend income is an incidental consideration compared to
                     growth of capital. In selecting securities for the
                     Portfolio, the advisers will evaluate factors they believe
                     are likely to affect long-term capital appreciation such as
                     the issuer's background, industry position, historical
                     returns on equity and experience and qualifications of the
                     management team. The advisers will rotate the Portfolio
                     holdings between various market sectors based on economic
                     analysis of the overall business cycle. Any remaining
                     assets may be invested in investment grade fixed income
                     securities and other types of equity securities. The
                     Portfolio may also borrow money, invest in illiquid
                     securities, when-issued and delayed-delivery securities and
                     shares of other investment companies, and lend its
                     securities to qualified buyers.
    
 
   
                           The Portfolio's annual turnover rate may exceed 100%.
                     Such a turnover rate may result in higher transaction costs
                     and in additional taxes for shareholders.
    
 
EQUITY INCOME PORTFOLIO
                     The investment objective of the Equity Income Portfolio is
                     to provide current income and, as a secondary objective,
                     moderate capital appreciation. There can be no assurance
                     that the Portfolio will achieve its investment objectives.
 
   
                           Under normal market conditions, at least 65% of the
                     Portfolio's assets will be invested in a diversified
                     portfolio of common stocks. The investment approach
                     employed by the advisers emphasizes income-producing common
                     stocks which, in general, have above-average dividend
                     yields relative to the stock market as measured by the
                     Standard and Poor's 500 Index. Any remaining assets may be
                     invested in investment grade fixed income securities. The
                     Portfolio may also borrow money, invest in illiquid
                     securities, when-issued and delayed-delivery securities and
                     shares of other investment companies, and lend its
                     securities to qualified buyers.
    
 
                                                                               7
<PAGE>
BALANCED PORTFOLIO
                     The investment objective of the Balanced Portfolio is total
                     return consistent with the preservation of capital. There
                     can be no assurance that the Portfolio will achieve its
                     investment objective.
 
   
                           The Portfolio invests in a combination of undervalued
                     common stocks and fixed income securities or in other
                     investment companies that invest in such securities. The
                     Portfolio seeks strong total return in all market
                     conditions, with a special emphasis on minimizing interim
                     declines during falling equity markets. The Portfolio
                     primarily invests in large capitalization equity
                     securities, intermediate-maturity fixed income securities
                     and money market instruments. The Portfolio may also borrow
                     money, invest in illiquid securities, when-issued and
                     delayed-delivery securities and shares of other investment
                     companies, and lend its securities to qualified buyers.
    
 
   
                           The average maturity of the fixed income securities
                     in the Portfolio will, under normal circumstances, be
                     approximately five years, although this will vary with
                     changing market conditions.
    
 
   
GENERAL INVESTMENT
POLICIES
AND RISK FACTORS
    
               _________________________________________________________________
 
EQUITY SECURITIES
   
                     Each Portfolio may purchase equity securities. 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. The Large Cap Value, Small Cap Growth,
                     Capital Appreciation and Equity Income Portfolios may only
                     invest in such securities if they are listed on registered
                     exchanges or actively traded in the over-the-counter
                     market.
    
 
   
                           Equity securities represent ownership interests in a
                     company or corporation, and include common stock, preferred
                     stock, and warrants and other rights to acquire such
                     instruments. Investments in equity securities in general
                     are subject to market risks that may cause their prices to
                     fluctuate over time. The value of convertible equity
                     securities is also affected by prevailing interest rates,
                     the credit quality of the issuer and any call provisions.
                     Fluctuations in the value of equity securities in which a
                     Portfolio invests will cause the net asset value of the
                     Portfolio to fluctuate.
    
 
   
                           Investments in small or middle capitalization
                     companies involve greater risk than is customarily
                     associated with larger, more established companies due to
                     the greater business risks of small size, limited markets
                     and financial resources, narrow product lines and the
                     frequent lack of depth of management. The securities of
                     small or medium-sized companies are often traded
                     over-the-counter, and may not be traded in volumes typical
                     of securities traded on a national securities exchange.
                     Consequently, the securities of smaller companies may have
                     limited market stability and may be subject to more abrupt
                     or erratic market movements than securities of larger, more
                     established companies or the market averages in general.
    
 
                                                                               8
<PAGE>
   
FIXED INCOME SECURITIES
    
   
                     Fixed income securities are debt obligations issued by
                     corporations, municipalities and other borrowers. The
                     market value of a Portfolio's fixed income investments will
                     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. Securities
                     with longer maturities are subject to greater fluctuations
                     in value than securities with shorter maturities. Changes
                     by an NRSRO in the rating of any fixed income security and
                     in the ability of an issuer to make payments of interest
                     and principal also affect the value of these investments.
                     Changes in the value of a Portfolio's securities will not
                     affect cash income derived from these securities but will
                     affect the Portfolio's net asset value.
    
 
   
                           Debt securities rated BBB by S&P or Baa by Moody's
                     lack outstanding investment characteristics, and have
                     speculative characteristics as well.
    
OPTIONS AND FUTURES
   
                     Each Portfolio may purchase or write 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.
    
TEMPORARY DEFENSIVE
INVESTMENTS
                     In order to meet liquidity needs, or for temporary
                     defensive purposes, each Portfolio may invest up to 100% of
                     its assets in cash and money market securities. To the
                     extent a Portfolio is engaged in temporary defensive
                     investing, the Portfolio will not be pursuing its
                     investment objective.
U.S. DOLLAR DENOMINATED SECURITIES OF FOREIGN ISSUERS
                     Each Portfolio, except the Mid-Cap Portfolio, may invest in
                     U.S. dollar denominated securities of foreign issuers,
                     including American Depositary Receipts, that are traded on
                     registered exchanges or listed on NASDAQ.
U.S. TREASURY RECEIPTS
   
                     The Large Cap Value, Capital Appreciation and Equity Income
                     Portfolios may invest in receipts involving U.S. Treasury
                     obligations.
    
 
   
                           For additional information regarding the Portfolios'
                     permitted investments, see "Description of Permitted
                     Investments and Risk Factors" in this Prospectus and
                     "Description of Permitted Investments" in the Statement of
                     Additional Information. For a description of the above
                     ratings, see "Description of Ratings" in the Statement of
                     Additional Information.
    
 
INVESTMENT LIMITATIONS
        ________________________________________________________________________
 
                     The investment objective and certain of the investment
                     limitations are fundamental policies of the Portfolios.
                     Fundamental policies cannot be changed with respect to the
                     Trust or a Portfolio without the consent of the holders of
                     a majority of the Trust's or that Portfolio's outstanding
                     shares.
 
                                                                               9
<PAGE>
                     NO PORTFOLIO MAY:
 
                     1. With respect to 75% of its assets, (i) purchase the
                       securities of any issuer (except securities issued or
                       guaranteed by the United States Government, its agencies
                       or instrumentalities) if, as a result, more than 5% of
                       its total assets would be invested in the securities of
                       such issuer; or (ii) acquire more than 10% of the
                       outstanding voting securities of any one issuer.
 
                     2. Purchase any securities which would cause more than 25%
                       of the total assets of the Portfolio to be invested in
                       the securities of one or more issuers conducting their
                       principal business activities in the same industry,
                       provided that this limitation does not apply to
                       investments in obligations issued or guaranteed by the
                       United States Government, its agencies or
                       instrumentalities.
 
   
                     3. 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.
    
 
                     The foregoing percentage limitations will apply at the time
                     of the purchase of a security. Additional fundamental and
                     non-fundamental investment limitations are set forth in the
                     Trust's Statement of Additional Information.
THE MANAGER
          ______________________________________________________________________
 
   
                     SEI Fund Management ("SEI Management") provides the Trust
                     with overall management services, regulatory reporting, all
                     necessary office space, equipment, personnel and
                     facilities, and acts as dividend disbursing agent. In
                     addition, SEI Management also serves as transfer agent (the
                     "Transfer Agent") to the Class A shares of the Trust.
    
 
                           For its management services, SEI Management is
                     entitled to a fee, which is calculated daily and paid
                     monthly, at an annual rate of .35% of the average daily net
                     assets of each Portfolio. SEI Management may waive all or a
                     portion of its fee in order to limit the operating expenses
                     of a Portfolio. Any such waivers are voluntary and may be
                     terminated at any time in SEI Management's sole discretion.
 
   
                           For the fiscal year ended September 30, 1997, the
                     Portfolios paid SEI Management the following management
                     fees (based on each Portfolio's average daily net assets
                     after fee waivers): Large Cap Value Portfolio, Large Cap
                     Growth, Small Cap Value, Small Cap Growth Portfolio,
                     Capital Appreciation Portfolio, and Equity Income
                     Portfolio, each paid .35%; and the Balanced Portfolio and
                     Mid-Cap Portfolio, each paid .34%.
    
 
                                                                              10
<PAGE>
THE ADVISER
         _______________________________________________________________________
   
SEI INVESTMENTS MANAGEMENT CORPORATION
    
   
                     SEI Investments Management Corporation ("SIMC") serves as
                     investment adviser to each Portfolio. SIMC is a
                     wholly-owned subsidiary of SEI Investments Company ("SEI
                     Investments"), a financial services company. The principal
                     business address of SIMC and SEI Investments is Oaks,
                     Pennsylvania 19456. SEI Investments was founded in 1968 and
                     is a leading provider of investment solutions to banks,
                     institutional investors, investment advisers, and insurance
                     companies. Affiliates of SIMC have provided consulting
                     advice to institutional investors for more than 20 years,
                     including advice regarding selection and evaluation of
                     investment advisers. SIMC currently serves as manager or
                     administrator to more than 46 investment companies,
                     including more than 345 portfolios, which investment
                     companies had more than $99.9 billion in assets as of
                     September 30, 1997.
    
 
   
                           SIMC acts as the investment adviser to the Portfolios
                     and operates as a "manager of managers." As Adviser, SIMC
                     oversees the investment advisory services provided to the
                     Portfolios and manages the cash portion of the Portfolios'
                     assets. Pursuant to separate sub-advisory agreements with
                     SIMC, and under the supervision of SIMC and the Board of
                     Trustees, the sub-advisers are responsible for the
                     day-to-day investment management of all or a discrete
                     portion of the assets of the Portfolios. The sub-advisers
                     are selected based primarily upon the research and
                     recommendations of SIMC, which evaluates quantitatively and
                     qualitatively each sub-adviser's skills and investment
                     results in managing assets for specific asset classes,
                     investment styles and strategies. Subject to Board review,
                     SIMC allocates and, when appropriate, reallocates the
                     Portfolios' assets among sub-advisers, monitors and
                     evaluates sub-adviser performance, and oversees sub-adviser
                     compliance with the Portfolios' investment objectives,
                     policies and restrictions. SIMC HAS THE ULTIMATE
                     RESPONSIBILITY FOR THE INVESTMENT PERFORMANCE OF THE
                     PORTFOLIOS DUE TO ITS RESPONSIBILITY TO OVERSEE
                     SUB-ADVISERS AND RECOMMEND THEIR HIRING, TERMINATION AND
                     REPLACEMENT.
    
 
   
                           For these advisory services, SIMC is entitled to a
                     fee, which is calculated daily and paid monthly, at an
                     annual rate of .35% of the Large Cap Value Portfolio's
                     average daily net assets, at an annual rate of .40% of the
                     Large Cap Growth, Mid-Cap, Capital Appreciation, Equity
                     Income and Balanced Portfolios' average daily net assets
                     and at an annual rate of .65% of Small Cap Value and Small
                     Cap Growth Portfolios' average daily net assets.
    
 
   
                           For the fiscal year ended September 30, 1997, SIMC
                     received an advisory fee of .35% of the Large Cap Value,
                     Large Cap Growth, Capital Appreciation, Equity Income and
                     Balanced Portfolios' average daily net assets, .40% of the
                     Mid-Cap Portfolio's average daily net assets, and .65% of
                     the Small Cap Value and Small Cap Growth Portfolios'
                     average daily net assets. SIMC paid the sub-advisers a fee
                     based on a percentage of the average monthly market value
                     of the assets managed by each sub-adviser out of its
                     advisory fee.
    
 
   
                           SIMC and the Trust have obtained an exemptive order
                     from the Securities and Exchange Commission (the "SEC")
                     that permits SIMC, with the approval of the Trust's
    
 
                                                                              11
<PAGE>
   
                     Board of Trustees, to retain sub-advisers unaffiliated with
                     SIMC for the Portfolios without submitting the sub-advisory
                     agreements to a vote of the Portfolios' shareholders. The
                     exemptive relief permits the disclosure of only the
                     aggregate amount payable by SIMC under all such
                     sub-advisory agreements. The Portfolios will notify
                     shareholders in the event of any addition or change in the
                     identity of its sub-advisers.
    
THE SUB-ADVISERS
               _________________________________________________________________
1838 INVESTMENT ADVISORS, L.P.
   
                     1838 Investment Advisors, L.P. ("1838") serves as
                     Sub-Adviser to a portion of the assets of the Small Cap
                     Value Portfolio. 1838 is a Delaware limited partnership
                     located at 100 Matsonford Road, Radnor, Pennsylvania. As of
                     September 30, 1997, 1838 managed $5.5 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.
    
 
   
                           Edwin B. Powell and Cynthia R. Axelrod are the fund
                     managers for the portion of the Small Cap Value Portfolio's
                     assets allocated to 1838. These individuals work as a team
                     and share responsibility. Mr. Powell managed small cap
                     equity portfolios for Provident Capital Management from
                     1987 to 1994. Prior to joining 1838 in 1995, Ms. Axelrod
                     was with Friess Associates from 1992 to 1995.
    
 
ALLIANCE CAPITAL MANAGEMENT L.P.
   
                     Alliance Capital Management L.P. ("Alliance") serves as
                     Sub-Adviser to a portion of the assets of the 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 September 30, 1997, Alliance managed over
                     $217.3 billion in assets. The principal business address of
                     Alliance is 1345 Avenue of the Americas, New York, New York
                     10105.
    
 
   
                           The Portfolio has been managed by a committee since
                     its inception. Mr. Christopher Toub has primary portfolio
                     management responsibility. For the past five years, Mr.
                     Toub has been a portfolio manager in Alliance's Disciplined
                     Growth Team.
    
 
   
AMERICAN EXPRESS ASSET MANAGEMENT GROUP INC.
    
   
                     American Express Asset Management Group Inc. (formerly,
                     "IDS Advisory Group Inc.") serves as a sub-adviser for a
                     portion of the assets of the Large Cap Growth Portfolio.
                     American Express Asset Management Group Inc. ("AEAMG") is a
                     registered investment adviser and wholly-owned subsidiary
                     of American Express Financial Corporation. As of September
                     30, 1997, AEAMG managed over $39 billion in assets, with
                     $8.7 billion of this total in large capitalization growth
                     domestic equities. AEAMG was founded in 1972 to manage
                     tax-exempt assets for institutional clients. The principal
                     business address of AEAMG is IDS Tower 10, Minneapolis,
                     Minnesota 55440.
    
 
                                                                              12
<PAGE>
   
                           A committee composed of five investment fund managers
                     of the equity investment team manages the portion of the
                     Large Cap Growth Portfolio's assets allocated to AEAMG. No
                     individual person is primarily responsible for making
                     recommendations to that committee.
    
 
BOSTON PARTNERS ASSET MANAGEMENT, L.P.
   
                     Boston Partners Asset Management, L.P. ("BPAM") serves as
                     Sub-Adviser to a portion of the assets of the Small Cap
                     Value Portfolio. BPAM, a Delaware limited partnership, is a
                     registered investment adviser with its principal offices
                     located at One Financial Center, 43rd Floor, Boston,
                     Massachusetts 02111. BPAM was founded in April, 1995, and
                     as of September 30, 1997, it had approximately $12.5
                     billion in assets under management. BPAM's clients include
                     corporations, endowments, foundations, pension and profit
                     sharing plans, and investment companies. BPAM's general
                     partner is Boston Partners, Inc.
    
 
   
                           The portion of the Small Cap Value Portfolio's assets
                     allocated to BPAM is managed by Wayne J. Archambo, CFA. Mr.
                     Archambo has been employed by BPAM since its organization,
                     and has more than 14 years experience investing in
                     equities. Prior to joining BPAM, Mr. Archambo was employed
                     at The Boston Company Asset Management, Inc. ("TBCAM") from
                     1989 through April 1995. Mr. Archambo created TBCAM's small
                     cap value product in 1992. The following year he was named
                     as a member of TBCAM's Equity Strategy Committee, and he
                     created their mid-cap value product.
    
 
FIRST OF AMERICA
INVESTMENT CORPORATION
   
                     First of America Investment Corporation ("First America")
                     serves as Sub-Adviser to a portion of the assets of the
                     Small Cap Growth Portfolio. First America is a Michigan
                     Corporation that is a wholly-owned subsidiary of First
                     America Bank -- Michigan, N.A., a national banking
                     association, which is in turn a wholly-owned subsidiary of
                     First America Bank Corporation, a registered bank holding
                     company. First America, together with its predecessor, has
                     been engaged in the investment advisory business since
                     1932. First America's principal business address is 303
                     North Rose Street, Suite 500, Kalamazoo, Michigan 49007. As
                     of September 30, 1997, First America had approximately
                     $16.8 billion in assets under management. First America's
                     clients include mutual funds, trust funds, and individually
                     managed institutional and individual accounts.
    
 
   
                           Mr. Roger Stamper, CFA, has primary responsibility
                     for First America's portion of the Small Cap Growth
                     Portfolio. Mr. Stamper is a Managing Director of First
                     America, and has been with First America since 1988.
    
 
FURMAN SELZ CAPITAL MANAGEMENT LLC
   
                     Furman Selz Capital Management LLC ("Furman Selz") serves
                     as Sub-Adviser to a portion of the assets of the Small Cap
                     Growth Portfolio. Furman Selz, a Delaware limited liability
                     company whose predecessor was formed in 1977, is a
                     registered investment adviser that managed approximately
                     $10.2 billion in assets as of September 30, 1997. The
                     ultimate parent of Furman Selz is ING Group N.V., a Dutch
                     financial services company. Furman Selz's principal
                     business address is 230 Park Avenue, New York, NY 10169.
    
 
                                                                              13
<PAGE>
   
                           Matthew S. Price and David C. Campbell, Managing
                     Directors/Portfolio Managers of Furman Selz, are primarily
                     responsible for the day-to-day management and investment
                     decisions made with respect to the assets of the Portfolio.
                     Prior to joining Furman Selz, Mr. Price and Mr. Campbell
                     were Senior Portfolio Managers at Value Line Asset
                     Management.
    
 
   
LSV ASSET MANAGEMENT
    
   
                     LSV Asset Management ("LSV") serves as a sub-adviser for a
                     portion of the assets of the Large Cap Value and Small Cap
                     Value Portfolios. LSV is a registered investment adviser
                     organized as a Delaware general partnership, in which an
                     affiliate of SIMC owns a majority interest. The general
                     partners developed a quantitative value investment
                     philosophy that has been used to manage assets over the
                     past 6 years. The investment process has been implemented
                     for a number of institutional clients with aggregate assets
                     invested of approximately $1.23 billion. The principal
                     business address of LSV is 181 W. Madison Avenue, Chicago,
                     Illinois 60602.
    
 
   
                           Josef Lakonishok, Andrei Shleifer and Robert Vishny,
                     officers of LSV, manage the Portfolios on an ongoing basis
                     and make adjustments to the investment model based on their
                     research and statistical analysis. Through their investment
                     process, LSV identifies buy and sell candidates subject to
                     specific tolerances and constraints.
    
 
   
                           SIMC pays LSV a fee, which is calculated and paid
                     monthly, based on an annual rate of .20% of the average
                     monthly market value of the assets of the Large Cap Value
                     Portfolio and .50% of the average monthly market value of
                     the assets of the Small Cap Value Portfolio managed by LSV.
    
 
MARTINGALE ASSET MANAGEMENT, L.P.
   
                     Martingale Asset Management, L.P. ("Martingale"), serves as
                     Sub-Adviser to the Mid-Cap Portfolio. Martingale is a
                     Delaware limited partnership with its principal address at
                     222 Berkeley Street, Boston, Massachusetts 02116. Commerz
                     Asset Management USA Corporation ("CAM") is the general
                     partner with a controlling interest in Martingale. CAM is
                     an affiliate of Commerz International Capital Management
                     GmbH ("CICM"), headquartered in Frankfurt, Germany. CICM is
                     the asset management subsidiary of Commerzbank AG.
                     Martingale was established in 1987, and as of September 30,
                     1997, had assets of approximately $885 million under
                     management.
    
 
   
                           The assets of the Portfolio have been managed by
                     William Jacques since 1996. Mr. Jacques, Executive Vice
                     President and portfolio manager, has been with Martingale
                     since 1987.
    
 
   
MELLON EQUITY ASSOCIATES, LLP
    
   
                     Mellon Equity Associates, LLP ("Mellon Equity") serves as
                     Sub-Adviser to a portion of the assets of the Large Cap
                     Value Portfolio. Mellon Equity is a Pennsylvania Limited
                     Liability Partnership founded in 1987. Mellon Bank, N.A.,
                     is the 99% limited partner and MMIP, Inc. is the 1% general
                     partner. MMIP, Inc. is a wholly-owned subsidiary of Mellon
                     Bank, N.A., which itself is a wholly-owned subsidiary of
                     the Mellon Bank Corporation. Mellon Equity is a
                     professional investment counseling firm that provides
                     investment management
    
 
                                                                              14
<PAGE>
   
                     services to the equity and balanced pension, public fund
                     and profit-sharing investment management markets, and is an
                     investment adviser registered under the Investment Advisers
                     Act of 1940. Mellon Equity had discretionary management
                     authority with respect to approximately $15.6 billion of
                     assets as of September 30, 1997. The business address for
                     Mellon Equity is 500 Grant Street, Suite 3700, Pittsburgh,
                     Pennsylvania 15258.
    
 
   
                           William P. Rydell and Robert A. Wilk have been the
                     Portfolio Managers for Mellon Equity's portion of the
                     assets of the Large Cap Value Portfolio since 1994. Mr.
                     Rydell is the President and Chief Executive Officer of
                     Mellon Equity, and has been managing individual and
                     collectivized portfolios at Mellon Equity since 1982. Mr.
                     Wilk is a Senior Vice President and Portfolio Manager of
                     Mellon Equity, and has been involved with securities
                     analysis, quantitative research, asset allocation, trading
                     and client services at Mellon Equity since April, 1990.
    
 
   
NICHOLAS-APPLEGATE CAPITAL MANAGEMENT, INC.
    
   
                     Nicholas-Applegate Capital Management
                     ("Nicholas-Applegate") serves as sub-adviser for a portion
                     of the assets of the Small Cap Growth Portfolio.
                     Nicholas-Applegate has operated as an investment adviser
                     which provides investment services to numerous clients,
                     including employee benefit plans, public retirement systems
                     and unions, university endowments, foundations, investment
                     companies, other institutional investors and individuals.
                     As of September 30, 1997, Nicholas-Applegate had
                     discretionary management authority with respect to
                     approximately $33 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 California limited partnership controlled
                     by a corporation controlled by Arthur E. Nicholas.
    
 
   
                           Nicholas-Applegate manages its portion of the Small
                     Cap Growth Portfolio's assets through its systematic-driven
                     management team under the general supervision of Mr.
                     Nicholas, founder and Chief Investment Officer of the firm.
                     The U.S. Systematic team is responsible for the day-to-day
                     management of the Portfolio's assets. The lead U.S.
                     Systematic portfolio manager is John Kane, and he is
                     assisted by six other portfolio manager/analysts for the
                     Portfolio's U.S. Systematic assets. Mr. Kane has been a
                     fund manager and investment team leader since June 1994.
                     Prior to joining Nicholas-Applegate, he had 25 years of
                     investment/economics experience with ARCO Investment
                     Management Company and General Electric Company.
    
 
PACIFIC ALLIANCE CAPITAL MANAGEMENT
   
                     Pacific Alliance Capital Management ("Pacific") serves as
                     Sub-Adviser to the Equity Income Portfolio. Pacific is a
                     division of Union Bank of California, N.A., and provides
                     equity and fixed-income management services for corporate
                     pension plans, endowments, foundations, Taft-Hartley Plans,
                     public agencies and individuals. Union Bank of California,
                     N.A., is a wholly-owned subsidiary of The Bank of
                     Tokyo-Mitsubishi Limited. As of September 30, 1997, Pacific
                     had discretionary management authority with respect to
                     approximately
    
 
                                                                              15
<PAGE>
   
                     $15.5 billion of assets. The principal business address of
                     Pacific is 475 Sansome Street, San Francisco, California
                     94111.
    
 
   
                           The Equity Income Portfolio has been managed by a
                     committee since its inception.
    
 
PROVIDENT INVESTMENT COUNSEL, INC.
   
                     Provident Investment Counsel, Inc. ("Provident") serves as
                     Sub-Adviser to a portion of the assets of the Large Cap
                     Growth Portfolio. Provident is a registered investment
                     adviser with its principal business address at 300 North
                     Lake Avenue, Pasadena, California 91101. Provident, which,
                     through its predecessors, has been in business since 1951,
                     is a wholly-owned subsidiary of United Asset Management
                     ("UAM"), a publicly traded investment adviser holding
                     company. UAM is headquartered at One International Place,
                     Boston, Massachusetts 02110. Provident provides investment
                     advice to corporations, public entities, foundations, and
                     labor unions, as well as to other investment companies. As
                     of September 30, 1997, Provident had over $20 billion in
                     client assets under management.
    
 
   
                           While Provident utilizes a team approach to portfolio
                     management, its Managing Director, Jeffrey J. Miller, is
                     responsible for the day-to-day management of the portion of
                     the Portfolio's assets assigned to Provident. Mr. Miller
                     has been employed by Provident since 1972, and has 25 years
                     of investment experience.
    
 
   
SANFORD C. BERNSTEIN & CO., INC.
    
   
                     Sanford C. Bernstein & Co., Inc. ("Bernstein"), serves as a
                     sub-adviser for a portion of the assets of the Large Cap
                     Value Portfolio. Founded in 1967, Bernstein is a registered
                     investment adviser that managed approximately $69.3 billion
                     in assets as of September 30, 1997. Bernstein is controlled
                     by the members of its Board of Directors and its principal
                     business address is 767 Fifth Avenue, New York, New York
                     10153.
    
 
   
                           Lewis A. Sanders and Marilyn Goldstein Fedak are
                     primarily responsible for the day-to-day management and
                     investment decisions with respect to the assets of the
                     Portfolio. Mr. Sanders has been employed by Bernstein since
                     1969, and is currently Chairman of the Board, Chief
                     Executive Officer, and a Director of Bernstein. Ms. Fedak,
                     Chief Investment Officer--Large Capitalization Domestic
                     Equities and a Director of Bernstein, has been employed by
                     Bernstein since 1984.
    
 
STI CAPITAL MANAGEMENT, N.A.
   
                     STI Capital Management, N.A. ("STI") serves as Sub-Adviser
                     to the Capital Appreciation and Balanced Portfolios. STI
                     was established in 1934, and is a wholly-owned subsidiary
                     of Sun Trust Banks, Inc., a Fortune 500 company. As of
                     September 30, 1997, STI had discretionary management
                     authority over more than $13 billion in assets. The
                     principal business address is: STI Capital Management, P.O.
                     Box 3786, Orlando, Florida 32802-3786.
    
 
                                                                              16
<PAGE>
   
                           Anthony R. Gray is Chairman and Chief Investment
                     Officer for STI. Mr. Gray is responsible for corporate and
                     investment policy at STI and management of the Trust's
                     growth equity products, including the Capital Appreciation
                     and Balanced Portfolios. Prior to establishing STI as a
                     separate entity within the SunTrust organization in 1989,
                     Mr. Gray served as the Director of Equity Investments for
                     the bank's trust assets. Mr. Gray joined the SunTrust
                     organization in 1979, and has been in the investment
                     management business for 24 years.
    
 
WALL STREET ASSOCIATES
   
                     Wall Street Associates ("WSA") serves as Sub-Adviser to a
                     portion of the assets of the 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
                     September 30, 1997, had approximately $1.4 billion in
                     assets under management. 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.
    
 
   
                           William Jeffery III, Kenneth F. McCain, and Richard
                     S. Coons, each of whom own 1/3 of WSA, serve as Portfolio
                     Managers for the portion of the Portfolio's assets
                     allocated to WSA since August, 1995. Each is a principal of
                     WSA and, together, they have 81 years of investment
                     management experience.
    
 
DISTRIBUTION AND
SHAREHOLDER SERVICING
      __________________________________________________________________________
 
   
                     SEI Investments Distribution Co. (the "Distributor"), a
                     wholly-owned subsidiary of SEI Investments serves as each
                     Portfolio's distributor pursuant to a distribution
                     agreement with the Trust. The Small Cap Growth Portfolio
                     has adopted a distribution plan for its Class D shares (the
                     "Class D Plan") pursuant to Rule 12b-1 under the Investment
                     Company Act of 1940 (the "1940 Act").
    
 
   
                           The Portfolios have adopted a shareholder service
                     plan for Class A shares (the "Class A Service Plan") under
                     which firms, including the Distributor, that provide
                     shareholder and administrative services may receive
                     compensation therefor. Under the Class A Service Plan, the
                     Distributor may provide those services itself, or may enter
                     into arrangements under which third parties provide such
                     services and are compensated by the Distributor. Under such
                     arrangements, the Distributor may retain as profit any
                     difference between the fee it receives and the amount it
                     pays such third parties. In addition, the Portfolios may
                     enter into such arrangements directly. Under the Class A
                     Service Plan, a Portfolio may pay the Distributor a
                     negotiated fee at a rate of up to .25% annually of the
                     average daily net assets of such Portfolio attributable to
                     Class A shares that are subject to the arrangement in
                     return for provision of a broad range of shareholder and
                     administrative services, including: maintaining client
                     accounts; arranging for bank wires; responding to
    
 
                                                                              17
<PAGE>
   
                     client inquiries concerning services provided for
                     investments; changing dividend options; account
                     designations and addresses; providing sub-accounting;
                     providing information on share positions to clients;
                     forwarding shareholder communications to clients;
                     processing purchase, exchange and redemption orders; and
                     processing dividend payments.
    
 
                           It is possible that an institution may offer
                     different classes of shares to its customers and thus
                     receive different compensation with respect to different
                     classes. These financial institutions may also charge
                     separate fees to their customers.
 
                           The Trust may execute brokerage or other agency
                     transactions through the Distributor, for which the
                     Distributor may receive compensation.
 
                           The Distributor may, from time to time and at its own
                     expense, provide promotional incentives, in the form of
                     cash or other compensation, to certain financial
                     institutions whose representatives have sold or are
                     expected to sell significant amounts of the Portfolios'
                     shares.
 
PURCHASE AND
REDEMPTION OF SHARES
    ____________________________________________________________________________
 
   
                     Financial institutions may acquire Class A shares of the
                     Portfolios for their own accounts or as record owner on
                     behalf of fiduciary, agency or custody accounts by placing
                     orders with the Transfer Agent (or its authorized agent).
                     Institutions that use certain SEI proprietary systems may
                     place orders electronically through those systems.
                     Financial institutions may impose an earlier cut-off time
                     for receipt of purchase orders directed through them to
                     allow for processing and transmittal of these orders to the
                     Transfer Agent for effectiveness the same day. Financial
                     institutions that purchase shares for the accounts of their
                     customers may impose separate charges on these customers
                     for account services.
    
 
                           Shares of each Portfolio may be purchased or redeemed
                     on days on which the New York Stock Exchange is open for
                     business ("Business Days"). The minimum initial investment
                     in a Portfolio is $100,000; however, the minimum investment
                     may be waived at the Distributor's discretion. All
                     subsequent purchases must be at least $1,000.
 
   
                           Shareholders who desire to purchase shares for cash
                     must place their orders with the Transfer Agent (or its
                     authorized agent) prior to the determination of net asset
                     value on any Business Day for the order to be accepted on
                     that Business Day. Purchase orders received by a fund after
                     the determination of net asset value will be effected at
                     the next Business Day's net asset value. Generally, payment
                     for fund shares must be transmitted on the next Business
                     Day following the day the order is placed. Payment for such
                     shares may only be transmitted or delivered in federal
                     funds to the wire agent. 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 purchase order. In addition,
                     because excessive trading (including short-term "market
                     timing" trading) can hurt a Portfolio's performance, each
                     Portfolio may refuse purchase orders from any shareholder
    
 
                                                                              18
<PAGE>
                     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.
 
   
                           Purchases will be made in full and fractional shares
                     of the Portfolios calculated to three decimal places. The
                     Trust will send shareholders a statement of shares owned
                     after each transaction. The purchase price of shares is the
                     net asset value next determined after a purchase order is
                     received and accepted by the Trust. The net asset value per
                     share of each Portfolio is determined by dividing the total
                     market value of a Portfolio's investments and other assets,
                     less any liabilities, by the total number of outstanding
                     shares of that Portfolio. Net asset value per share is
                     determined daily at the close of regular trading on the New
                     York Stock Exchange (currently 4:00 p.m., Eastern time) on
                     each Business Day.
    
 
   
                           If there is no readily ascertainable market value for
                     a security, SEI Management will make a good faith
                     determination as to the "fair value" of the security.
                     Securities having maturities of 60 days or less at the time
                     of purchase will be valued using the amortized cost method
                     (described in the Statement of Additional Information).
    
 
   
                           Shareholders who desire to redeem shares of the
                     Portfolios must place their redemption orders with the
                     Transfer Agent (or its authorized agent) prior to the
                     determination of net asset value on any Business Day.
                     Redemption orders received after the determination of net
                     asset value will be effected at the next Business Day's net
                     asset value. The redemption price is the net asset value
                     per share of the Portfolio next determined after receipt by
                     SEI Management of the redemption order. Payment on
                     redemption will be made as promptly as possible and, in any
                     event, within seven days after the redemption order is
                     received.
    
 
   
                           Shares of a Portfolio may be purchased in exchange
                     for securities included in the Portfolio subject to SIMC's
                     determination that the securities are acceptable.
                     Securities accepted in an exchange will be valued at the
                     market value. All accrued interest and subscription of
                     other rights which are reflected in the market price of
                     accepted securities at the time of valuation become the
                     property of the Trust and must be delivered by the
                     Shareholder to the Trust upon receipt from the issuer.
    
 
   
                           SIMC and SEI Management will not accept securities
                     for a Portfolio unless (1) such securities are appropriate
                     in the Portfolio at the time of the exchange; (2) such
                     securities are acquired for investment and not for resale;
                     (3) the Shareholder represents and agrees that all
                     securities offered to the Trust for the Portfolio are not
                     subject to any restrictions upon their sale by the
                     Portfolio under the Securities Act of 1933, or otherwise;
                     (4) such securities are traded on the American Stock
                     Exchange, the New York Stock Exchange or on NASDAQ in an
                     unrelated transaction with a quoted sales price on the same
                     day the exchange valuation is made or, if not listed on
                     such exchanges or on NASDAQ, have prices available from an
                     independent pricing service approved by the Trust's Board
                     of Trustees;
    
 
                                                                              19
<PAGE>
                     and (5) the securities may be acquired under the investment
                     restrictions applicable to the Portfolio.
 
   
                           Purchase and redemption orders may be placed by
                     telephone. 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 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 shareholders
                     experience difficulties placing redemption orders by
                     telephone, shareholders may wish to consider placing their
                     order by other means.
PERFORMANCE
          ______________________________________________________________________
 
                     From time to time, a Portfolio 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 Portfolio refers to the
                     annualized income generated by an investment in the
                     Portfolio 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 Portfolio refers to the average
                     compounded rate of return to a hypothetical investment
                     redeemed at the end of the specified period covered by the
                     total return figure, for designated time periods (including
                     but not limited to, the period from which the Portfolio
                     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 Portfolio
                     may also be quoted as a dollar amount or on an aggregate
                     basis, an actual basis, without inclusion of any front-end
                     or contingent sales charges, or with a reduced sales charge
                     in advertisements distributed to investors entitled to a
                     reduced sales charge.
 
                           A Portfolio 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. A Portfolio 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. A Portfolio 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
 
                                                                              20
<PAGE>
                     markets. A Portfolio may also quote financial and business
                     publications and periodicals as they relate to fund
                     management, investment philosophy, and investment
                     techniques.
 
                           A Portfolio 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 the Small Cap Growth Portfolio, the performance
                     of Class A shares will normally be higher than the
                     performance of the Class D shares of that Portfolio because
                     of the additional distribution 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 income tax treatment of a
                     Portfolio or its shareholders. In addition, state and local
                     tax consequences of an investment in a Portfolio 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.
TAX STATUS
OF THE PORTFOLIOS
                     A Portfolio is treated as a separate entity for federal
                     income tax purposes and is not combined with the Trust's
                     other portfolios. Each Portfolio intends to continue to
                     qualify for the special tax treatment afforded regulated
                     investment companies ("RICs") under Subchapter M of the
                     Internal Revenue Code of 1986, as amended, so as to be
                     relieved of federal income tax on net investment company
                     taxable income (including the excess, if any, of net
                     short-term capital gains over net long-term capital losses)
                     and net capital gains (the excess of net long-term capital
                     gains over net short-term capital losses) distributed to
                     shareholders.
TAX STATUS
OF DISTRIBUTIONS
   
                     Each Portfolio distributes substantially all of its net
                     investment company taxable income to shareholders.
                     Dividends from a Portfolio's net investment company taxable
                     income are taxable to its shareholders as ordinary income
                     (whether received in cash or in additional shares), and
                     generally will qualify for the dividends-received deduction
                     for corporate shareholders to the extent that such
                     dividends are derived from dividends received by the
                     portfolio from domestic corporations. Distributions to
                     shareholders of net capital gains of the Portfolio also
                     will not qualify for the dividends received deduction and
                     will be taxable to shareholders as long-term capital gain,
                     taxable at the rate of 20% for property held for more than
                     18 months and at the rate of 28% for property held for more
                     than one year but not for more than 18 months, whether
                     received in cash or additional shares, and
    
 
                                                                              21
<PAGE>
   
                     regardless of how long a shareholder has held the shares.
                     Each Portfolio will provide annual reports to shareholders
                     of the federal income tax status of all distributions.
    
 
                           Dividends declared by a Portfolio 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 Portfolio and received by
                     the shareholders on December 31 of the year declared if
                     paid by a Portfolio at any time during the following
                     January.
 
                           Each Portfolio intends to make sufficient
                     distributions to avoid liability for the federal excise tax
                     applicable to RICs.
 
                           Each sale, exchange or redemption of a Portfolio's
                     shares generally is a taxable transaction to the
                     shareholder.
GENERAL INFORMATION
                  ______________________________________________________________
THE TRUST
                     The Trust was organized as a Massachusetts business trust
                     under a Declaration of Trust dated October 20, 1986. The
                     Declaration of Trust permits the Trust to offer separate
                     series ("portfolios") of shares and different classes of
                     each portfolio. All consideration received by the Trust for
                     shares of any class of any portfolio and all assets of such
                     portfolio or class belong to that portfolio or class,
                     respectively, and would be subject to the 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, litigation and other
                     extraordinary expenses, brokerage costs, interest charges,
                     taxes and organization expenses.
 
                           Certain shareholders in one or more of the Portfolios
                     may obtain asset allocation services from the Adviser and
                     other financial intermediaries with respect to their
                     investments in such Portfolios. If a sufficient amount of a
                     Portfolio's assets are subject to such asset allocation
                     services, a Portfolio may incur higher transaction costs
                     and a higher portfolio turnover rate than would otherwise
                     be anticipated as a result of redemptions and purchases of
                     Portfolio shares pursuant to such services. Further, to the
                     extent that the Adviser is providing asset allocation
                     services and providing investment advice to the Portfolios,
                     it may face conflicts of interest in fulfilling its
                     responsibilities because of the possible differences
                     between the interests of its asset allocation clients and
                     the interest of the Portfolios.
TRUSTEES OF THE TRUST
                     The management and affairs of the Trust are supervised by
                     the Trustees under the laws of the Commonwealth of
                     Massachusetts. The Trustees have approved contracts under
                     which, as described above, certain companies provide
                     essential management services to the Trust.
VOTING RIGHTS
                     Each share held entitles the shareholder of record to one
                     vote. The shareholders of each Portfolio or class will vote
                     separately on matters pertaining solely to that Portfolio
                     or class, such as any distribution plan. As a Massachusetts
                     business trust, the Trust is not required to hold annual
                     meetings of shareholders, but approval will be sought for
                     certain changes
 
                                                                              22
<PAGE>
                     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 statements
                     semi-annually and audited financial statements annually.
                     The Trust furnishes proxy statements and other reports to
                     shareholders of record.
SHAREHOLDER INQUIRIES
                     Shareholder inquiries should be directed to the Manager,
                     SEI Fund Management, Oaks, Pennsylvania 19456.
DIVIDENDS
                     Substantially all of the net investment income (exclusive
                     of capital gains) of each Portfolio is periodically
                     declared and paid as a dividend. Dividends currently are
                     paid on a quarterly basis for each Portfolio. Currently,
                     net capital gains (the excess of net long-term capital gain
                     over net short-term capital loss) realized, if any, will be
                     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 SEI Management at
                     least 15 days prior to the distribution.
 
   
                           Dividends and capital gains of each Portfolio 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 a dividend or
                     capital gains distribution, a shareholder will pay the full
                     price for the share and receive some portion of the price
                     back as a taxable dividend or distribution.
    
COUNSEL AND INDEPENDENT ACCOUNTANTS
                     Morgan, Lewis & Bockius LLP serves as counsel to the Trust.
                     Price Waterhouse LLP serves as the independent accountants
                     of the Trust.
CUSTODIAN AND WIRE AGENT
                     CoreStates Bank, N.A., Broad and Chestnut Streets, P.O. Box
                     7618, Philadelphia, Pennsylvania 19101 (the "Custodian"),
                     acts as custodian and wire agent of the Trust's assets. The
                     Custodian holds cash, securities and other assets of the
                     Trust as required by the 1940 Act.
 
                                                                              23
<PAGE>
DESCRIPTION OF
PERMITTED INVESTMENTS
AND RISK FACTORS
          ______________________________________________________________________
 
                     The following is a description of the permitted investment
                     practices for the Portfolios, and the associated risk
                     factors:
AMERICAN DEPOSITARY RECEIPTS ("ADRS")
                     ADRs are securities, typically issued by a U.S. financial
                     institution (a "depositary"), that evidence ownership
                     interests in a security or a pool of securities issued by a
                     foreign issuer and deposited with the depositary. ADRs may
                     be available 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 underlying security.
CONVERTIBLE SECURITIES
                     Convertible securities are corporate securities that are
                     exchangeable for a set number of another security at a
                     prestated price. Convertible securities typically have
                     characteristics similar to both fixed-income and equity
                     securities. Because of the conversion feature, the market
                     value of a convertible security tends to move with the
                     market value of the underlying stock. The value of a
                     convertible security is also affected by prevailing
                     interest rates, the credit quality of the issuer, and any
                     call provisions.
DERIVATIVES
   
                     Derivatives are securities that derive their value from
                     other securities assets, or indices. The following are
                     considered derivative securities: options on futures,
                     futures, options (e.g., puts and calls), swap agreements,
                     mortgage-backed securities (e.g., CMOs, REMICs, IOs and
                     POs), when-issued securities and forward commitments,
                     floating and variable rate securities, convertible
                     securities, "stripped" U.S. Treasury securities (e.g.,
                     Receipts and STRIPs), privately issued stripped securities
                     (e.g., TGRs, TRs and CATS). See elsewhere in this
                     "Description of Permitted Investments and Risk Factors" for
                     discussions of certain of these instruments.
    
FUTURES AND OPTIONS ON FUTURES
                     Futures contracts provide for the future sale by one party
                     and purchase by another party of a specified amount of a
                     specific security at a specified future time and at a
                     specified price. An option on a futures contract gives the
                     purchaser the right, in exchange for a premium, to assume a
                     position in a futures contract at a specified exercise
                     price during the term of the option. A Portfolio may use
                     futures contracts and related options for bona fide hedging
                     purposes, to offset changes in the value of securities held
                     or expected to be acquired or be disposed of, to minimize
                     fluctuations in foreign currencies, or to gain exposure to
                     a particular market or instrument. A Portfolio will
                     minimize the risk that it will be unable to close out a
                     futures contract by only entering into futures contracts
                     that are traded on national futures exchanges.
 
   
                           An index futures contract is a bilateral agreement
                     pursuant to which two parties agree to take or make
                     delivery of an amount of cash equal to a specified dollar
                     amount
    
 
                                                                              24
<PAGE>
                     times the difference between the stock 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 comprising the index is made; generally
                     contracts are closed out prior to the expiration date of
                     the contract.
 
   
                           In order to avoid leveraging and related risks, when
                     a Portfolio invests in futures contracts, it will cover its
                     position by depositing an amount of cash or liquid
                     securities equal to the market value of the futures
                     positions held, less margin deposits, in a segregated
                     account and that amount will be marked to market on a daily
                     basis.
    
 
   
                           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.
    
ILLIQUID SECURITIES
                     Illiquid securities are securities that cannot be disposed
                     of within seven business days at approximately the price at
                     which they are being carried on the Portfolio's books.
                     Illiquid securities include demand instruments with demand
                     notice periods exceeding seven days, securities for which
                     there is no active secondary market, and repurchase
                     agreements with durations (or maturities) over seven days
                     in length.
MONEY MARKET SECURITIES
   
                     Money market securities are high-quality,
                     dollar-denominated, short-term debt instruments. They
                     consist of: (i) bankers' acceptances, certificates of
                     deposits, notes and time deposits of highly-rated U.S.
                     banks and U.S. branches of foreign banks; (ii) U.S.
                     Treasury obligations and obligations issued by the 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 and governments that
                     issue high-quality commercial paper or similar securities;
                     and (v) repurchase agreements involving any of the
                     foregoing obligations entered into with highly-rated banks
                     and broker-dealers.
    
MORTGAGE-BACKED SECURITIES
                     Mortgage-backed securities are instruments that entitle the
                     holder to a share of all interest and principal payments
                     from mortgages underlying the security. The mortgages
                     backing these securities include conventional fifteen- and
                     thirty-year fixed-rate mortgages, graduated payment
                     mortgages, and adjustable rate mortgages and balloon
                     mortgages. During periods of declining interest rates,
                     prepayment of mortgages underlying mortgage-backed
                     securities can be expected to accelerate. Prepayment of
                     mortgages which underlie securities purchased at a premium
                     often results in capital losses, while prepayment of
                     mortgages purchased at a discount often results in capital
                     gains. Because of these
 
                                                                              25
<PAGE>
                     unpredictable prepayment characteristics, it is often not
                     possible to predict accurately the average life or realized
                     yield of a particular issue.
 
   
                           GOVERNMENT PASS-THROUGH SECURITIES:  These are
                     securities that are issued or guaranteed by a U.S.
                     Government agency representing an interest in a pool of
                     mortgage loans. The primary issuers or guarantors of these
                     mortgage-backed securities are Government National Mortgage
                     Association ("GNMA"), Fannie Mae and the Federal Home Loan
                     Mortgage Corporation ("FHLMC"). GNMA, Fannie Mae and FHLMC
                     guarantee timely distributions of interest to certificate
                     holders. GNMA and Fannie Mae also guarantee timely
                     distributions of scheduled principal. FHLMC generally
                     guarantees only the ultimate collection of principal of the
                     underlying mortgage loan. Fannie Mae and FHLMC obligations
                     are not backed by the full faith and credit of the U.S.
                     Government as GNMA certificates are, but Fannie Mae and
                     FHLMC securities are supported by the instrumentalities'
                     right to borrow from the U.S. Treasury. 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. 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 of 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 then their stated maturities or final distribution
                     dates, resulting in a loss of all or part of any premium
                     paid. Each class of a CMO is issued with a specific fixed
                     or floating coupon rate and has a stated maturity or final
                     distribution date.
    
 
   
                           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 Fannie Mae,
                     FHLMC or GNMA represent beneficial ownership interests in a
                     REMIC trust consisting principally of mortgage loans or
                     Fannie Mae, FHLMC or GNMA-guaranteed mortgage pass-through
                     certificates. 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. Fannie Mae REMIC Certificates
                     are issued and guaranteed as to timely distribution of
                     principal and interest by Fannie Mae. GNMA REMIC
                     Certificates are backed by the full faith and credit of the
                     U.S. Government.
    
 
                           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
 
                                                                              26
<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.
 
   
                           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, while the other class
                     may receive all of the principal payments. The market for
                     SMBs is not as fully developed as other markets; SMBs,
                     therefore, may be illiquid.
    
OPTIONS
   
                     A Portfolio may purchase and write put and call options on
                     indices and enter into related closing transactions. A put
                     option on a security 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 on a security 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.
    
 
   
                           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.
    
 
   
                           All options written on indices or securities must be
                     covered. When a Portfolio writes an option or security on
                     an index, it will establish a segregated account containing
                     cash or liquid securities 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.
 
                                                                              27
<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 securities.
    
REITS
                     REITs are trusts that invest primarily in commercial real
                     estate or real estate-related loans. The value of interests
                     in REITs may be affected by the value of the property owned
                     or the quality of the mortgages held by the trust.
REPURCHASE AGREEMENTS
                     Arrangements by which a Portfolio obtains a security and
                     simultaneously commits to return the security to the seller
                     at an agreed upon price (including principal and interest)
                     on an agreed upon date within a number of days from the
                     date of purchase. Repurchase agreements are considered
                     loans under the 1940 Act.
SECURITIES LENDING
                     In order to generate additional income, a Portfolio may
                     lend its securities pursuant to agreements that require
                     that the loan be continuously secured by collateral
                     consisting of cash or securities of the U.S. Government or
                     its agencies equal to at least 100% of the market value of
                     the loaned securities. A Portfolio continues to receive
                     interest on the loaned securities while simultaneously
                     earning interest on the investment of cash collateral.
                     Collateral is marked to market daily. There may be risks of
                     delay in recovery of the securities or even loss of rights
                     in the collateral should the borrower of the securities
                     fail financially or become insolvent.
SECURITIES OF FOREIGN ISSUERS
                     There are certain risks connected with investing in foreign
                     securities. These include risks of adverse political and
                     economic developments (including possible governmental
                     seizure or nationalization of assets), the possible
                     imposition of exchange controls or other governmental
                     restrictions, less uniformity in accounting and reporting
                     requirements, the possibility that there will be less
                     information on such securities and their issuers available
                     to the public, the difficulty of obtaining or enforcing
                     court judgments abroad, restrictions on foreign investments
                     in other jurisdictions, difficulties in effecting
                     repatriation of capital invested abroad, and difficulties
                     in transaction settlements and the effect of delay on
                     shareholder equity. Foreign securities may be subject to
                     foreign taxes, and may be less marketable than comparable
                     U.S. securities.
U.S. GOVERNMENT AGENCY OBLIGATIONS
   
                     Obligations issued or guaranteed by agencies of the U.S.
                     Government, including, among others, the Federal Farm
                     Credit Bank, the Federal Housing Administration and the
                     Small Business Administration, and obligations issued or
                     guaranteed by instrumentalities of the U.S. Government,
                     including, among others, the FHLMC, 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, and others are supported by the right of the
                     issuer to borrow from the Treasury, while still others are
                     supported only by the credit of the instrumentality.
    
 
                                                                              28
<PAGE>
U.S. TREASURY OBLIGATIONS
                     U.S. Treasury obligations consist of bills, notes and bonds
                     issued by the U.S. Treasury, as well as separately traded
                     interest and principal component parts of such obligations,
                     known as Separately Traded Registered Interest and
                     Principal Securities ("STRIPS"), that are transferable
                     through the Federal book-entry system.
U.S. TREASURY RECEIPTS
                     U.S. Treasury receipts are interests in separately traded
                     interest and principal component parts of U.S. Treasury
                     obligations that are issued by banks or brokerage firms and
                     are created by depositing U.S. Treasury notes and
                     obligations into a special account at a custodian bank. The
                     custodian holds the interest and principal payments for the
                     benefit of the registered owners of the certificates of
                     receipts. The custodian arranges for the issuance of the
                     certificates or receipts evidencing ownership and maintains
                     the register.
VARIABLE AND FLOATING RATE INSTRUMENTS
                     Certain obligations may carry variable or floating rates of
                     interest, and may involve a conditional or unconditional
                     demand feature. Such instruments bear interest at rates
                     which are not fixed, but which vary with changes in
                     specified market rates or indices. The interest rates on
                     these securities may be reset daily, weekly, quarterly or
                     some other reset period, and may have a floor or ceiling on
                     interest rate changes.
WARRANTS
                     Warrants are instruments giving holders the right, but not
                     the obligation, to buy equity or fixed income securities of
                     a company at a given price during a specified period.
WHEN-ISSUED AND DELAYED DELIVERY SECURITIES
   
                     When-issued or delayed delivery transactions involve the
                     purchase of an instrument with payment and delivery taking
                     place in the future. Delivery of and payment for these
                     securities may occur a month or more after the date of the
                     purchase commitment. A Portfolio will maintain a separate
                     account with liquid securities or cash in an amount at
                     least equal to these commitments. The interest rate
                     realized on these securities is fixed as of the purchase
                     date, and no interest accrues to a Portfolio before
                     settlement.
    
 
                     Additional information on permitted investments and risk
                     factors can be found in the Statement of Additional
                     Information.
 
                                                                              29
<PAGE>
TABLE OF CONTENTS
               _________________________________________________________________
 
   
<TABLE>
<S>                                                <C>
Annual Operating Expenses........................          2
Financial Highlights.............................          3
The Trust........................................          5
Investment Objectives and Policies...............          5
General Investment Policies and Risk Factors.....          8
Investment Limitations...........................          9
The Manager......................................         10
The Adviser......................................         11
The Sub-Advisers.................................         12
Distribution and Shareholder Servicing...........         17
Purchase and Redemption of Shares................         18
Performance......................................         20
Taxes............................................         21
General Information..............................         22
Description of Permitted Investments and Risk
 Factors.........................................         24
</TABLE>
    
<PAGE>
                        SEI INSTITUTIONAL MANAGED TRUST
 
Manager:
 
  SEI Fund Management
 
Distributor:
 
   
  SEI Investments Distribution Co.
    
 
Investment Adviser and Sub-Advisers:
 
   
1838 Investment Advisors, L.P.
Alliance Capital Management L.P.
American Express Asset Management
  Group Inc.
BEA Associates
BlackRock Financial Management, Inc.
Boston Partners Asset Management, L.P.
First of America Investment Corporation
Firstar Investment Research &
  Management Company, LLC
Furman Selz Capital Management LLC
LSV Asset Management
Martingale Asset Management, L.P.
Mellon Equity Associates, LLP
Nicholas-Applegate Capital Management
Pacific Alliance Capital Management
Provident Investment Counsel, Inc.
Sanford C. Bernstein & Co., Inc.
SEI Investments Management Corporation
STI Capital Management, N.A.
Wall Street Associates
Western Asset Management 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 Prospectuses dated
January 31, 1998. Prospectuses may be obtained by writing the Trust's
distributor, SEI Investments Distribution Co., at Oaks, Pennsylvania 19456, or
by calling 1-800-342-5734.
    
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<S>                                                                                     <C>
The Trust.............................................................................        S-2
Description of Permitted Investments..................................................        S-2
Investment Limitations................................................................       S-10
Description of Ratings................................................................       S-12
The Manager...........................................................................       S-16
The Adviser and Sub-Advisers..........................................................       S-17
Distribution and Shareholder Servicing................................................       S-19
Trustees and Officers of the Trust....................................................       S-20
Performance...........................................................................       S-22
Purchase and Redemption of Shares.....................................................       S-24
Shareholder Services (Class D Shares).................................................       S-25
Taxes.................................................................................       S-26
Portfolio Transactions................................................................       S-28
Description of Shares.................................................................       S-31
Limitation of Trustees' Liability.....................................................       S-31
Voting................................................................................       S-32
Shareholder Liability.................................................................       S-32
Control Persons and Principal Holders of Securities...................................       S-32
Experts...............................................................................       S-34
Financial Statements..................................................................       S-34
 
January 31, 1998
SEI-F-048-09
</TABLE>
    
<PAGE>
                                   THE TRUST
 
    SEI Institutional Managed Trust (the "Trust") is an open-end management
investment company that offers shares of diversified portfolios. The Trust was
established as a Massachusetts business trust pursuant to a Declaration of Trust
dated October 20, 1986. The Declaration of Trust permits the Trust to offer
separate series ("portfolios") of units of beneficial interest ("shares") and
separate classes of portfolios. Shareholders may purchase shares in certain
portfolios through two separate classes, Class A and Class D, which provide for
variations in sales charges, distribution costs, transfer agent fees, voting
rights and dividends. Except for differences between the Class A shares and/or
Class D shares pertaining to sales charges, distribution and shareholder
servicing, voting rights, dividends and transfer agent expenses, each share of
each portfolio represents an equal proportionate interest in that portfolio with
each other share of that portfolio.
 
   
    This Statement of Additional Information relates to the following
portfolios: Balanced, Capital Appreciation, Equity Income, High Yield Bond, Core
Fixed Income, Large Cap Growth, Large Cap Value, Mid-Cap, Small Cap Growth and
Small Cap Value Portfolios (each a "Portfolio" and, together, the "Portfolios"),
and any different classes of the Portfolios.
    
 
                      DESCRIPTION OF PERMITTED INVESTMENTS
 
    ALL PORTFOLIOS MAY INVEST IN THE FOLLOWING INVESTMENTS UNLESS SPECIFICALLY
NOTED OTHERWISE.
 
    AMERICAN DEPOSITORY RECEIPTS ("ADRS")--The Balanced, Capital Appreciation,
Equity Income, High Yield Bond, Large Cap Growth, Large Cap Value and Small Cap
Value Portfolios may invest in ADRs traded on registered exchanges or on NASDAQ.
The Large Cap Growth Portfolio may also invest in ADRs not traded on an
established exchange. While the Portfolios typically invest in sponsored ADRs,
joint arrangements between the issuer and the depositary, some ADRs may be
unsponsored. Unlike sponsored ADRs, the holders of unsponsored ADRs bear all
expenses and the depositary may not be obligated to distribute shareholder
communications or to pass through the voting rights on the deposited securities.
 
   
    ASSET-BACKED SECURITIES--The Core Fixed Income and High Yield Bond
Portfolios may invest in securities backed by automobile, credit-card or other
types of receivables 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
overcollateralization.
    
 
    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 and 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 mortgage-backed securities. In addition, credit card receivables
are unsecured obligations of the card holders.
 
    The market for asset-backed securities is at a relatively early stage of
development. Accordingly, there may be a limited secondary market for such
securities.
 
                                      S-2
<PAGE>
    BANKERS' ACCEPTANCES--A bankers' acceptance is a bill of exchange or time
draft drawn on and accepted by a commercial bank. It is used by corporations to
finance the shipment and storage of goods and to furnish dollar exchange.
Maturities are generally six months or less.
 
    CERTIFICATES OF DEPOSIT--A certificate of deposit is a negotiable,
interest-bearing instrument with a specific maturity. Certificates of deposit
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 have penalties for early withdrawal.
 
    COMMERCIAL PAPER--Commercial paper is the term used to designate unsecured,
short-term promissory notes issued by corporations and other entities.
Maturities on these issues vary from a day to nine months.
 
   
    CONVERTIBLE SECURITIES--Convertible securities 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, a 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. The value of convertible
securities is also affected by prevailing interest rates, the credit quality of
the issuer and any call provisions. The Capital Appreciation, Equity Income,
High Yield Bond, Mid-Cap, Large Cap Growth, Large Cap Value, Small Cap Growth
and Small Cap Value Portfolios may invest in convertible securities.
    
 
   
    FOREIGN SECURITIES--The Balanced, Capital Appreciation, Equity Income, High
Yield Bond, Small Cap Growth, Small Cap Value, Large Cap Growth and Large Cap
Value Portfolios may invest in U.S. dollar denominated obligations or securities
of foreign issuers. In addition, the Core Fixed Income and High Yield Bond
Portfolios may invest in Yankee Obligations. 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, foreign securities and Europaper. These instruments may subject the
Portfolio to investment risks that differ in some respects from those related to
investments in obligations of U.S. 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 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.
    
 
   
    FORWARD FOREIGN CURRENCY CONTRACTS--At the maturity of a forward contract, a
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. A Portfolio may realize a gain or loss from
currency transactions. A Portfolio will place assets in a segregated account to
assure that its obligations under forward foreign currency contracts are
covered.
    
 
   
    FUTURES AND OPTIONS ON FUTURES--A Portfolio may enter into futures contracts
and options on futures contracts traded on an exchange regulated by the
Commodities Futures Trading Commission ("CFTC"), so long as, to the extent that
such transactions are not for "bone 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 the Portfolio's net assets. A
Portfolio may buy and sell futures contracts
    
 
                                      S-3
<PAGE>
   
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.
    
 
   
    LOWER RATED SECURITIES--The High Yield Bond Portfolio will invest in
lower-rated bonds commonly referred to as "junk bonds" or high-yield/high-risk
securities. Lower rated securities are defined as securities below the fourth
highest rating category by a nationally recognized statistical rating
organization ("NRSRO"). Such obligations are speculative and may be in default.
There is no bottom limit on the ratings of high-yield securities that may be
purchased or held by the Portfolio. In addition, the Portfolio may invest in
unrated securities subject to the restrictions stated in the Prospectus.
    
 
    GROWTH OF HIGH-YIELD BOND, 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.
 
    SENSITIVITY TO INTEREST RATE AND ECONOMIC CHANGES.  Lower rated bonds are
very sensitive to adverse economic changes and corporate developments. During an
economic down turn or substantial period of rising interest rates, highly
leveraged issuers may experience financial stress that would adversely affect
their ability to service their principal and interest payment obligations, to
meet projected business goals, and to obtain additional financing. If the issuer
of a bond defaulted on its obligations to pay interest or principal or entered
into bankruptcy proceedings, the Portfolio may incur losses or expenses in
seeking recovery of amounts owed to it. In addition, periods of economic
uncertainty and change can be expected to result in increased volatility of
market prices of high-yield, high-risk bonds and the Portfolio's net asset
value.
 
    PAYMENT EXPECTATIONS.  High-yield, high-risk bonds may contain redemption or
call provisions. If an issuer exercised these provisions in a declining interest
rate market, the Portfolio would have to replace the security with a lower
yielding security, resulting in a decreased return for investors. Conversely, a
high-yield, high-risk bond's value will decrease in a rising interest rate
market, as will the value of the Portfolio's assets. If the Portfolio
experiences significant unexpected net redemptions, this may force it to sell
high-yield, high-risk bonds without regard to their investment merits, thereby
decreasing the asset base upon which expenses can be spread and possibly
reducing the Portfolio's rate of return.
 
   
    LIQUIDITY AND VALUATION.  There may be little trading in the secondary
market for particular bonds, which may affect adversely the Portfolio's ability
to value accurately or dispose of such bonds. Adverse publicity and investor
perception, whether or not based on fundamental analysis, may decrease the
values and liquidity of high-yield, high-risk bonds, especially in a thin
market.
    
 
    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. 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--The Balanced, Core Fixed Income, and High Yield
Bond Portfolios may, consistent with their respective investment objectives and
policies, invest in mortgage-backed securities.
    
 
    Mortgage-backed securities in which the Portfolios may invest represent
pools of mortgage loans assembled for sale to investors by various governmental
agencies such as the Government National
 
                                      S-4
<PAGE>
   
Mortgage Association ("GNMA") and government-related organizations such as
Fannie Mae 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.
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 a 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. When the mortgage-backed
securities held by a Portfolio are prepaid, the Portfolio must reinvest the
proceeds in securities the yield of which reflects prevailing interest rates,
which may be lower than the prepaid security. 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 return to a 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 a Portfolio will
receive when these amounts are reinvested.
    
 
    A Portfolio may also invest in mortgage-backed securities that are
collateralized mortgage obligations structured on pools of mortgage pass-through
certificates or mortgage loans. For purposes of determining the average maturity
of a mortgage-backed security in its investment portfolio, the Core Fixed Income
Portfolio will utilize the expected average life of the security, as estimated
in good faith by the Portfolio's advisers. Unlike most single family residential
mortgages, commercial real estate property loans often contain provisions which
substantially reduce the likelihood that such securities will be prepaid. The
provisions generally impose significant prepayment penalties on loans and, in
some cases there may be prohibitions on principal prepayments for several years
following origination.
 
   
    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 are 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 Fannie Mae include Fannie Mae Guaranteed
Mortgage Pass-Through Certificates (also known as "Fannie Maes") that are solely
the obligations of Fannie Mae and are not backed by or entitled to the full
faith and credit of the United States. Fannie Mae is a government-sponsored
organization owned entirely by private stockholders. Fannie Maes are guaranteed
as to timely payment of the principal and interest by Fannie Mae.
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
    
 
                                      S-5
<PAGE>
   
mortgage participation certificates. Fannie Mae REMIC Certificates are issued
and guaranteed as to timely distribution of principal and interest by Fannie
Mae.
    
 
    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 securities in a segregated account in an amount sufficient to cover
its repurchase obligation.
    
 
    MUNICIPAL SECURITIES--The Core Fixed Income Portfolio may invest in
municipal securities. The two principal classifications of Municipal Securities
are "general obligation" and "revenue" issues. General obligation issues are
issues involving the credit of an issuer possessing taxing power and are payable
from the issuer's general unrestricted revenues, although the characteristics
and method of enforcement of general obligation issues may vary according to the
law applicable to the particular issuer. Revenue issues are payable only from
the revenues derived from a particular facility or class of facilities or other
specific revenue source. A Portfolio may also invest in "moral obligation"
issues, which are normally issued by special purpose authorities. Moral
obligation issues are not backed by the full faith and credit of the state and
are generally backed by the agreement of the issuing authority to request
appropriations from the state legislative body. Municipal Securities include
debt obligations issued by governmental entities to obtain funds for various
public purposes, such as the construction of a wide range of public facilities,
the refunding of outstanding obligations, the payment of general operating
expenses, and the extension of loans to other public institutions and
facilities. Certain private activity bonds that are issued by or on behalf of
public authorities to finance various privately-owned or operated facilities are
included within the term "Municipal Securities." Private activity bonds and
industrial development bonds are generally revenue bonds, the credit and quality
of which are directly related to the credit of the private user of the
facilities.
 
    Municipal Securities may also include general obligation notes, tax
anticipation notes, bond anticipation notes, revenue anticipation notes, project
notes, certificates of indebtedness, demand notes, tax-exempt commercial paper,
construction loan notes and other forms of short-term, tax-exempt loans. Such
instruments are issued with a short-term maturity in anticipation of the receipt
of tax funds, the proceeds of bond placements or other revenues. Project notes
are issued by a state or local housing agency and are sold by the Department of
Housing and Urban Development. While the issuing agency has the primary
obligation with respect to its project notes, they are also secured by the full
faith and credit of the United States through agreements with the issuing
authority which provide that, if required, the federal government will lend the
issuer an amount equal to the principal of and interest on the project notes.
 
    The quality of Municipal Securities, both within a particular classification
and between classifications, will vary, and the yields on Municipal Securities
depend upon a variety of factors, including general money market conditions, the
financial condition of the issuer (or other entity whose financial resources are
supporting the securities), general conditions of the municipal bond market, the
size of a particular offering, the maturity of the obligation and the rating(s)
of the issue. In this regard, it should be emphasized that the ratings of any
NRSRO are general and are not absolute standards of quality. Municipal
Securities with the same maturity, interest rate and rating(s) may have
different yields, while Municipal Securities of the same maturity and interest
rate with different rating(s) may have the same yield.
 
    An issuer's obligations under its Municipal Securities are subject to the
provisions of bankruptcy, insolvency, and other laws affecting the rights and
remedies of creditors, such as the Federal Bankruptcy Code, and laws, if any,
which may be enacted by Congress or state legislatures extending the time for
 
                                      S-6
<PAGE>
payment of principal or interest, or both, or imposing other constraints upon
the enforcement of such obligations or upon the ability of municipalities to
levy taxes. The power or ability of an issuer to meet its obligations for the
payment of interest on and principal of its Municipal Securities may be
materially adversely affected by litigation or other conditions.
 
    MUNICIPAL LEASES--The Core Fixed Income Portfolio may invest in instruments,
or participations in instruments, issued in connection with lease obligations or
installment purchase contract obligations of municipalities ("municipal lease
obligations"). Although municipal lease obligations do not constitute general
obligations of the issuing municipality, a lease obligation is ordinarily backed
by the municipality's covenant to budget for, appropriate funds for, and make
the payments due under the lease obligation. However, certain lease obligations
contain "non-appropriation" clauses, which provide that the municipality has no
obligation to make lease or installment purchase payments in future years unless
money is appropriated for such purpose in the relevant years. Municipal lease
obligations are a relatively new form 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.
 
   
    PAY-IN-KIND BONDS--Investments of the Core Fixed Income and High Yield Bond
Portfolios in fixed-income securities may include pay-in-kind bonds. These 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.
    
 
    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.
 
   
    Each Portfolio may trade put and call options on securities and securities
indices, as the advisers determine is appropriate in seeking the Portfolio's
investment objective, and except as restricted by each Portfolio's investment
limitations as set forth below. See "Investment Limitations."
    
 
   
    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 on securities 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 on securities 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 Portfolio writes 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 realize as
profit the premium received for such option. When a call option of which a
Portfolio is the writer 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 of which a Portfolio is the writer is exercised, the
    
 
                                      S-7
<PAGE>
   
Portfolio will be required to purchase the underlying securities at a price in
excess of the market value of such securities.
    
 
   
    A segregated account is maintained to cover the difference between the
closing price of the index and the exercise price of the index option, expressed
in dollars multiplied by a specified number. Thus, unlike options on individual
securities, the ability of a Portfolio to enter into closing transactions
depends upon the existence of a liquid secondary market for such transactions.
    
 
    A Portfolio may purchase and write options on an exchange or
over-the-counter. Over-the-counter options ("OTC options") differ from
exchange-traded options in several respects. They are transacted directly with
dealers and not with a clearing corporation, and therefore entail the risk of
non-performance by the dealer. OTC options are available for a greater variety
of securities and for a wider range of expiration dates and exercise prices than
are available for exchange-traded options. Because OTC options are not traded on
an exchange, pricing is done normally by reference to information from a market
maker. It is the position of the Securities and Exchange Commission that OTC
options are generally illiquid.
 
    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.
 
   
    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"),
"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 (See "U.S. Treasury Obligations") are interests in
accounts sponsored by the U.S. Treasury. Receipts are sold as zero coupon
securities; see "Zero Coupon Securities." The Capital Appreciation, Core Fixed
Income, Equity Income, and Large Cap Value Portfolios may invest in receipts.
    
 
    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. A Portfolio involved bears a risk of loss in the event that the other
party to a repurchase agreement defaults on its obligations and a Portfolio is
delayed or prevented from exercising its rights to dispose of the collateral
securities. An adviser 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 a Portfolio
will provide that the underlying security at all times shall have a value at
least equal to 102% of the price stated in the agreement. This underlying
security will be marked to market daily. The advisers will monitor compliance
with this requirement. Under all repurchase agreements entered into by a
Portfolio, the Custodian or its agent must take possession of the underlying
collateral. However, if the seller defaults, a 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, a Portfolio may incur delay
and costs in selling the security and may suffer a loss of principal and
interest if the Portfolio is treated as an unsecured creditor.
 
                                      S-8
<PAGE>
    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
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--Loans are made only to borrowers deemed by the advisers
to be in good standing and when, in the judgment of the advisers, 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 Portfolios may use the Distributor as a
broker in these transactions.
 
    TIME DEPOSITS--Time deposits are non-negotiable receipts issued by a bank in
exchange for the deposit of funds. Like a certificate of deposit, it earns a
specified rate of interest over a definite period of time; however, it cannot be
traded in the secondary market. Time deposits with a withdrawal penalty are
considered to be illiquid securities.
 
    U.S. GOVERNMENT AGENCY OBLIGATIONS--Guarantees of principal by agencies or
instrumentalities of the U.S. 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
Portfolios' shares.
 
    VARIABLE OR FLOATING RATE INSTRUMENTS--Variable or floating rate instruments
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. The
quality of the underlying credit must, in the opinion of a Portfolio's advisers,
be equivalent to the long-term bond or commercial paper ratings applicable to
permitted investments for each Portfolio. Each 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. 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.
 
    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 AND DELAYED DELIVERY SECURITIES--When-Issued securities are
securities that involve the purchase of debt obligations on a when-issued basis,
in which case delivery and payment normally take place within 45 days after the
date of commitment to purchase. 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 when-issued obligations results in
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. A Portfolio will establish a segregated account with the Custodian
and maintain liquid assets in an amount at least equal in value to that
Portfolio's commitments to purchase when-issued securities. If the value of
these assets
    
 
                                      S-9
<PAGE>
   
declines, the 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.
    
 
    YANKEE OBLIGATIONS--Some securities issued by foreign governments or their
subdivisions, agencies and instrumentalities may not be backed by the full faith
and credit of the foreign government. Yankee obligations as obligations of
foreign issuers, are subject to the same types of risks discussed in "Securities
of Foreign Issuers," above.
 
    The yankee obligations selected for the Portfolios will adhere to the same
quality standards as those utilized for the selection of domestic debt
obligations.
 
   
    ZERO COUPON SECURITIES--STRIPS and Receipts (TRs, TIGRs, LYONs and CATS) are
sold as zero coupon securities, that is, fixed income securities that have been
stripped of their unmatured interest coupons. Zero coupon securities 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 accreted 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. 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
income distribution requirements. A Portfolio accrues income with respect to the
securities prior to the receipt of 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.
    
 
    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.
 
                             INVESTMENT LIMITATIONS
 
FUNDAMENTAL POLICIES
 
   
No Portfolio may:
    
 
   
1.  Make loans if, as a result, more than 33 1/3% of its total assets would be
    loaned 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.
    
 
   
2.  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.
    
 
   
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").
    
 
                                      S-10
<PAGE>
   
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.
    
 
    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 Prospectus are
fundamental policies of the Trust and may not be changed without shareholder
approval.
 
NON-FUNDAMENTAL POLICIES
No Portfolio may:
 
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 as
    permitted by the 1940 Act or an order of exemption therefrom.
 
5.  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.
 
6.  Purchase securities which are not readily marketable, if, in the aggregate,
    more than 15% of its total assets would be invested in such securities.
 
    Under rules and regulations established by the SEC, a Portfolio is typically
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 the company; securities issued by any one investment company represent
more than 5% of the total Portfolio's assets; or securities (other than treasury
stock) issued by all investment companies represent more than 10% of the total
assets of the Portfolio. However, certain Portfolios may rely upon SEC exemptive
orders issued to the Trust which permit the Portfolios to invest in other
investment companies beyond these percentage limitations. A 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 Trust's Board of
Trustees without a vote of shareholders.
 
                             DESCRIPTION OF RATINGS
 
DESCRIPTION OF CORPORATE BOND RATINGS
 
    The following descriptions of corporate bond ratings have been published by
Moody's Investor's Service, Inc. ("Moody's"), Standard and Poor's Corporation
("S&P"), Duff and Phelps, Inc. ("Duff"),
 
                                      S-11
<PAGE>
Fitch Investor's Services, Inc. ("Fitch"), IBCA Limited ("IBCA") and Thomson
BankWatch ("Thomson"), respectively.
 
DESCRIPTION OF MOODY'S LONG-TERM RATINGS
 
AAA  Bonds 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 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 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 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.
 
DESCRIPTION OF S&P'S LONG-TERM RATINGS
 
INVESTMENT GRADE
 
AAA  Debt rated "AAA" has the highest rating assigned by S&P. Capacity to pay
     interest and repay principal is extremely strong.
 
AA   Debt rated "AA" has a very strong capacity to pay interest and repay
     principal and differs from the highest rated debt only in small degree.
 
A    Debt rated "A" has a strong capacity to pay interest and repay principal,
     although it is somewhat more susceptible to adverse effects of changes in
     circumstances and economic conditions than debt in higher-rated categories.
 
BBB  Debt rated "BBB" is regarded as having an adequate capacity to pay interest
     and repay principal. Whereas it normally exhibits adequate protection
     parameters, adverse economic conditions or changing circumstances are more
     likely to lead to a weakened capacity to pay interest and repay principal
     for debt in this category than in higher rated categories.
 
DESCRIPTION OF DUFF'S LONG-TERM RATINGS
 
AAA  Highest credit quality. The risk factors are negligible, being only
     slightly more than for risk-free U.S. Treasury debt.
 
AA+ High credit quality. Protection factors are strong.
 
AA- Risk is modest but may vary slightly from time to time because of economic
     conditions.
 
A+  Protection factors are average but adequate. However,
 
                                      S-12
<PAGE>
A-  risk factors are more variable and greater in periods of economic stress.
 
BBB+ Below average protection factors but still considered
 
BBB- sufficient for prudent investment. Considerable variability in risk during
     economic cycles.
 
DESCRIPTION OF FITCH'S LONG-TERM RATINGS
 
INVESTMENT GRADE BOND
 
AAA  Bonds rated AAA are judged to be strictly high grade, broadly marketable,
     suitable for investment by trustees and fiduciary institutions liable to
     slight market fluctuation other than through changes in the money rate. The
     prime feature of an AAA bond is a showing of earnings several times or many
     times greater than interest requirements, with such stability of applicable
     earnings that safety is beyond reasonable question whatever changes occur
     in conditions.
 
AA   Bonds rated AA are judged to be of safety virtually beyond question and are
     readily salable, whose merits are not unlike those of the AAA class, but
     whose margin of safety is less strikingly broad. The issue may be the
     obligation of a small company, strongly secured but influenced as to rating
     by the lesser financial power of the enterprise and more local type market.
 
A    Bonds rated A are considered to be investment grade and of high credit
     quality. The obligor's ability to pay interest and repay principal is
     considered to be strong, but may be more vulnerable to adverse changes in
     economic conditions and circumstances than bonds with higher ratings.
 
BBB  Bonds rated BBB are considered to be investment grade and of satisfactory
     credit quality. The obligor's ability to pay interest and repay principal
     is considered to be adequate. Adverse changes in economic conditions and
     circumstances, however, are more likely to have adverse impact on these
     bonds, and therefore impair timely payment. The likelihood that the ratings
     of these bonds will fall below investment grade is higher than for bonds
     with higher ratings.
 
DESCRIPTION OF IBCA'S LONG-TERM RATINGS
 
AAA  Obligations rated AAA have the lowest expectation of investment risk.
     Capacity for timely repayment of principal and interest is substantial,
     such that adverse changes in business, economic or financial conditions are
     unlikely to increase investment risk significantly.
 
AA   Obligations for which there is a very low expectation of investment risk
     are rated AA. Capacity for timely repayment of principal and interest is
     substantial. Adverse changes in business, economic or financial conditions
     may increase investment risk albeit not very significantly.
 
A    Bonds rated A are obligations for which there is a low expectation of
     investment risk. Capacity for timely repayment of principal and interest is
     strong, although adverse changes in business, economic or financial
     conditions may lead to increased investment risk.
 
BBB  Bonds rated BBB are obligations for which there is currently a low
     expectation of investment risk. Capacity for timely repayment of principal
     and interest is adequate, although adverse changes in business, economic or
     financial conditions are more likely to lead to increased investment risk
     than for obligations in other categories.
 
                                      S-13
<PAGE>
DESCRIPTION OF THOMSON'S LONG-TERM DEBT RATINGS
 
INVESTMENT GRADE
 
AAA  Bonds rated AAA indicate that the ability to repay principal and interest
     on a timely basis is very high.
 
AA   Bonds rated AA indicate a superior ability to repay principal and interest
     on a timely basis, with limited incremental risk compared to issues rated
     in the highest category.
 
A    Bonds rated A indicate the ability to repay principal and interest is
     strong. Issues rated A could be more vulnerable to adverse developments
     (both internal and external) than obligations with higher ratings.
 
BBB  Bonds rated BBB indicate an acceptable capacity to repay principal and
     interest. Issues rated BBB are, however, more vulnerable to adverse
     developments (both internal and external) than obligations with higher
     ratings.
 
DESCRIPTION OF COMMERCIAL PAPER RATINGS
 
    The following descriptions of commercial paper ratings have been published
by Moody's, Standard and Poor's, Duff and Phelps, Fitch, IBCA and Thomson
BankWatch, respectively.
 
DESCRIPTION OF MOODY'S SHORT-TERM RATINGS
 
    PRIME-1  Issuers rated Prime-1 (or supporting institutions) have a superior
    ability for repayment of senior short-term debt obligations. Prime-1
    repayment ability will often be evidenced by many of the following
    characteristics:
 
    - Leading market positions in well-established industries.
 
    - High rates of return on funds employed.
 
    - Conservative capitalization structure with moderate reliance on debt and
      ample asset protection.
 
    - Broad margins in earnings coverage of fixed financial charges and high
      internal cash generation.
 
    - Well-established access to a range of financial markets and assured
      sources of alternate liquidity.
 
    PRIME-2  Issuers rated Prime-2 (or supporting institutions) have a strong
    ability for repayment of senior short-term debt obligations. This will
    normally be evidenced by many of the characteristics cited above but to a
    lesser degree. Earnings trends and coverage ratios, while sound, may be more
    subject to variation. Capitalization characteristics, while still
    appropriate, may be more affected by external conditions. Ample alternate
    liquidity is maintained.
 
S&P'S SHORT-TERM RATINGS
 
<TABLE>
<S>        <C>
A-1        This highest category indicates that the degree of safety regarding timely payment
           is strong. Debt determined to possess extremely strong safety characteristics is
           denoted with a plus sign (+) designation.
 
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'.
</TABLE>
 
                                      S-14
<PAGE>
<TABLE>
<S>        <C>
DESCRIPTION OF DUFF'S SHORT-TERM RATINGS
 
Duff 1+    Highest certainty of timely payment. Short-term liquidity, including internal
           operating factors and/or access to alternative sources of funds, is outstanding,
           and safety is just below risk-free U.S. Treasury short-term obligations.
 
Duff 1     Very high certainty of timely payment. Liquidity factors are excellent and
           supported by good fundamental protection factors. Risk factors are minor.
 
Duff 1-    High certainty of timely payment. Liquidity factors are strong and supported by
           good fundamental protection factors. Risk factors are very small.
 
    GOOD GRADE
 
Duff 2     Good certainty of timely payment. Liquidity factors and company fundamentals are
           sound. Although ongoing funding needs may enlarge total financing requirements,
           access to capital markets is good. Risk factors are small.
 
DESCRIPTION OF FITCH'S SHORT-TERM RATINGS
 
F-1+       Exceptionally Strong Credit Quality. Issues assigned this rating are regarded as
           having the strongest degree of assurance for timely payment.
 
F-1        Very Strong Credit Quality. Issues assigned this rating reflect an assurance of
           timely payment only slightly less in degree than issues rated 'F-1+'
 
F-2        Good Credit Quality. Issues assigned this rating have a satisfactory degree of
           assurance for timely payment, but the margin of safety is not as great as for
           issues assigned 'F-1+' and 'F-1' ratings.
 
LOC        The symbol LOC indicates that the rating is based on a letter of credit issued by
           a commercial bank.
 
DESCRIPTION OF IBCA'S SHORT-TERM RATINGS (UP TO 12 MONTHS)
 
A1+        Obligations supported by the highest capacity for timely repayment.
 
A1         Obligations supported by a strong capacity for timely repayment.
 
A2         Obligations supported by a satisfactory capacity for timely repayment, although
           such capacity may be susceptible to adverse changes in business, economic, or
           financial conditions.
 
DESCRIPTION OF THOMSON'S SHORT-TERM RATINGS
 
TBW-1      The highest category; indicates a very high likelihood that principal and interest
           will be paid on a timely basis.
 
TBW-2      The second-highest category; while the degree of safety regarding timely repayment
           of principal and interest is strong, the relative degree of safety is not as high
           as for issues rated "TBW-1".
</TABLE>
 
                                      S-15
<PAGE>
                                  THE MANAGER
 
    The Management Agreement provides that SEI Fund Management ("SEI Management"
or the "Manager") shall not be liable for any error of judgment or mistake of
law or for any loss suffered by the Trust in connection with the matters to
which the Management Agreement relates, except a loss resulting from willful
misfeasance, bad faith or gross negligence on the part of SEI Management in the
performance of its duties or from reckless disregard of its duties and
obligations thereunder.
 
    The continuance of the Management Agreement must be specifically approved at
least annually (i) by the vote of a majority of the Trustees or by the vote of a
majority of the outstanding voting securities of the Portfolio, and (ii) by the
vote of a majority of the Trustees of the Trust who are not parties to the
Management Agreement or an "interested person" (as that term is defined in the
1940 Act) of any party thereto, cast in person at a meeting called for the
purpose of voting on such approval. The Management Agreement is terminable at
any time as to any Portfolio without penalty by the Trustees of the Trust, by a
vote of a majority of the outstanding shares of the Portfolio or by SEI
Management on not less than 30 days' nor more than 60 days' written notice.
 
   
    The Manager, a Delaware business trust, has its principal business offices
at Oaks, Pennsylvania 19456. SEI Investments Management Corporation ("SIMC"), a
wholly-owned subsidiary of SEI Investment Company ("SEI Investments"), is the
owner of all beneficial interest in SEI Management. Alfred P. West, Jr., Carmen
V. Romeo, and Henry H. Greer constitute the Board of Directors of SIMC, the
Investment Adviser to the Portfolio. Mr. West serves as Chairman of the Board of
Directors and Chief Executive Officer of SIMC and SEI Investments, Mr. Greer
serves as President and Chief Operating Officer of SIMC and SEI Investments, and
Chief Financial Officer of SEI Investments, and Mr. Romeo serves as Executive
Vice President and Treasurer of SEI Investments. SEI Investments and its
subsidiaries and affiliates, including SEI Management, are leading providers of
funds evaluation services, trust accounting systems, and brokerage and
information services to financial institutions, institutional investors, and
money managers. SEI Management and its affiliates also serve as administrator or
sub-administrator to the following other mutual funds: The Achievement Funds
Trust, The Advisors' Inner Circle Fund, The Arbor Fund, ARK Funds, Bishop Street
Funds, Boston 1784 Funds-Registered Trademark-, CoreFunds, Inc., CrestFunds,
Inc., CUFUND, The Expedition Funds, FMB Funds, Inc., First American Funds, Inc.,
First American Investment Funds, Inc., First American Strategy Funds, Inc.,
HighMark Funds, Marquis Funds-Registered Trademark-, Monitor Funds, Morgan
Grenfell Investment Trust, The PBHG Funds, Inc., PBHG Insurance Series Fund,
Inc., The Pillar Funds, Santa Barbara Group of Mutual Funds, Inc., SEI Asset
Allocation Trust, SEI Daily Income Trust, SEI Index Funds, SEI Institutional
Investments Trust, SEI International Trust, SEI Liquid Asset Trust, SEI Tax
Exempt Trust, STI Classic Funds, STI Classic Variable Trust, and TIP Funds.
    
 
   
    If operating expenses of any Portfolio exceed applicable limitations, SEI
Management will pay such excess. SEI Management will not be required to bear
expenses of any Portfolio to an extent which would result in the Portfolio's
inability to qualify as a regulated investment company under provisions of the
Internal Revenue Code of 1986, as amended (the "Code"). The term "expenses" is
defined in such laws or regulations, and generally excludes brokerage
commissions, distribution expenses, taxes, interest and extraordinary expenses.
    
 
                                      S-16
<PAGE>
   
    For the fiscal years ended September 30, 1995, 1996 and 1997 the Portfolios
paid fees to the Manager as follows:
    
 
   
<TABLE>
<CAPTION>
                                             MANAGEMENT FEES PAID    MANAGEMENT FEES
                                                    (000)              WAIVED (000)
                                            ----------------------  ------------------
                                             1995    1996    1997   1995  1996   1997
                                            ------  ------  ------  ----  ----  ------
<S>                                         <C>     <C>     <C>     <C>   <C>   <C>
Balanced Portfolio........................  $  210  $  171  $  176  $105  $ 55  $    3
Bond Portfolio(1).........................  $  223  $   64  $   58  $125  $ 57  $    3
Capital Appreciation Portfolio............  $2,042  $  898  $  657  $212  $ 28  $    0
Core Fixed Income Portfolio...............  $1,154  $1,266  $2,235  $478  $339  $  108
Equity Income Portfolio...................  $1,303  $  780  $  663  $197  $ 40  $    0
High Yield Bond Portfolio.................  $   16  $  160  $  501  $ 18  $ 42  $   82
Large Cap Growth Portfolio................  $  444  $1,484  $2,156  $  0  $  0  $    0
Large Cap Value Portfolio.................  $  637  $1,598  $2,279  $112  $  0  $    0
Mid-Cap Portfolio.........................  $  189  $   58  $   97  $ 79  $ 28  $    4
Small Cap Growth Portfolio................  $1,267  $1,102  $1,441  $102  $ 27  $    0
Small Cap Value Portfolio.................  $  156  $  490  $  771  $  6  $ 11  $    0
</TABLE>
    
 
- ------------------------
 
 * Not in operation during such period.
 
   
(1) The Bond Portfolio was terminated on December 31, 1997.
    
 
                         THE ADVISERS AND SUB-ADVISERS
 
   
    The Advisory Agreement and certain of the Sub-Advisory Agreements provide
that SEI Investments Management Corporation ("SIMC" or the "Adviser") (or any
Sub-Adviser) shall not be protected against any liability to the Trust or its
shareholders by reason of willful misfeasance, bad faith or gross negligence on
its part in the performance of its duties, or from reckless disregard of its
obligations or duties thereunder. In addition, certain of the Sub-Advisory
Agreements provide that the Sub-Adviser shall not be protected against any
liability to the Trust or its 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.
    
 
    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 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 a
Portfolio, by a majority of the outstanding shares of that Portfolio, on not
less than 30 days' nor more than 60 days' written notice to the Adviser (or
Sub-Adviser) or by the Adviser (or Sub-Adviser) on 90 days' written notice to
the Trust.
 
   
    SIMC has obtained an exemptive order from the SEC that permits SIMC, with
the approval of the Trust's Board of Trustees, to retain unaffiliated
sub-advisers for a Portfolio without submitting the sub-advisory agreement to a
vote of the Portfolio's shareholders. The exemptive relief permits the non-
disclosure of amounts payable by SIMC under such sub-advisory agreements. The
Trust will notify shareholders in the event of any change in the identity of the
sub-adviser for a Portfolio.
    
 
                                      S-17
<PAGE>
   
    For the fiscal years ended September 30, 1995, 1996 and 1997, the Portfolios
paid advisory fees as follows:
    
 
   
<TABLE>
<CAPTION>
                                                      ADVISORY FEES PAID      ADVISORY FEES
                                                            (000)              WAIVED (000)
                                                    ----------------------  ------------------
                                                     1995   1996(1)  1997   1995   1996   1997
                                                    ------  ------  ------  ----   ----   ----
<S>                                                 <C>     <C>     <C>     <C>    <C>    <C>
Balanced Portfolio................................  $  193  $  253  $  178  $ 0    $ 6    $ 26
Bond Portfolio(2).................................  $  127  $  119  $   60  $ 0    $ 0    $  0
Capital Appreciation Portfolio....................  $1,291  $1,033  $  657  $ 0    $25    $ 94
Core Fixed Income Portfolio.......................  $  474  $1,424  $2,301  $ 0    $ 0    $  0
Equity Income Portfolio...........................  $  883  $  915  $  662  $ 0    $22    $ 95
High Yield Bond Portfolio.........................  $   31  $  282  $  812  $ 0    $ 0    $  0
Large Cap Growth Portfolio........................  $  449  $1,498  $2,157  $58    $198   $308
Large Cap Value Portfolio.........................  $  645  $1,598  $2,279  $ 0    $ 0    $  0
Mid-Cap Portfolio.................................  $  235  $   98  $  115  $ 0    $ 0    $  0
Small Cap Growth Portfolio........................  $1,493  $2,098  $2,675  $ 0    $ 0    $  0
Small Cap Value Portfolio.........................  $  299  $  930  $1,432  $ 1    $ 0    $  0
</TABLE>
    
 
- ------------------------
 
 * Not in operation during such period.
 
(1) Includes amounts paid to the Portfolios' sub-advisers under the former
    investment advisory agreements.
 
   
(2) The Bond Portfolio was terminated on December 31, 1997.
    
 
   
    For the fiscal years ended September 30, 1995, 1996 and 1997, SIMC paid
sub-advisory fees as follows:
    
 
   
<TABLE>
<CAPTION>
                                                     SUB-ADVISORY FEES
                                                        PAID (000)
                                                    -------------------
                                                    1995   1996   1997
                                                    ----   ----  ------
<S>                                                 <C>    <C>   <C>
Balanced Portfolio................................   $39   $157  $  102
Bond Portfolio(1).................................   $16   $ 54  $   28
Capital Appreciation Portfolio....................   $181  $621  $  359
Core Fixed Income Portfolio.......................  N/A    $614  $  950
Equity Income Portfolio...........................   $146  $548  $  369
High Yield Bond Portfolio.........................   $16   $195  $  585
Large Cap Growth Portfolio........................   $260  $832  $1,263
Large Cap Value Portfolio.........................   $346  $894  $1,284
Mid-Cap Portfolio.................................   $ 9   $ 62  $   71
Small Cap Growth Portfolio........................   $205  $1,574 $1,966
Small Cap Value Portfolio.........................   $240  $595  $1,061
</TABLE>
    
 
- ------------------------
 
 * Not applicable during such period.
 
   
(1) The Bond Portfolio was terminated on December 31, 1997.
    
 
                                      S-18
<PAGE>
                     DISTRIBUTION AND SHAREHOLDER SERVICING
 
   
    The Trust has adopted a Distribution Agreement for the Portfolios. The Trust
has also adopted a Distribution Plan (the "Class D Plan") for the Class D shares
of the Small Cap Growth Portfolio 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 Qualified
Trustees, as defined in the Plan. The Class D Plan requires that quarterly
written reports of amounts spent under the Class D 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 Portfolio 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.
    
 
   
    The Class D Plan provides that the Trust will pay a fee of up to .30% of the
average daily net assets of the Small Cap Growth Portfolio's Class D shares that
the Distributor can use to compensate broker-dealers and service providers,
including SEI Investments Distribution Co. and its affiliates, which provide
distribution-related services to the Small Cap Growth Portfolio Class D
shareholders or their customers who beneficially own Class D shares.
    
 
   
    The distribution-related services that may be provided under the Plan
include establishing and maintaining customer accounts and records; aggregating
and processing purchase and redemption requests from customers; placing net
purchase and redemption orders with the Distributor; and automatically investing
customer account cash balances.
    
 
   
    Except to the extent that the Manager and Advisers 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 Plan or related
agreements.
    
 
    The Portfolios have also adopted a shareholder servicing plan for their
Class A shares (the "Service Plan"). Under the Service Plan, the Distributor may
perform, or may compensate other service providers for performing, the following
shareholder services: maintaining client accounts; arranging for bank wires;
responding to client inquiries concerning services provided on investments;
assisting clients in changing dividend options, account designations and
addresses; sub-accounting; providing information on share positions to clients;
forwarding shareholder communications to clients; processing purchase, exchange
and redemption orders; and processing dividend payments. Under the Service Plan,
the Distributor may retain as a profit any difference between the fee it
receives and the amount it pays to third parties.
 
    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.
 
                                      S-19
<PAGE>
   
    For the fiscal year ended September 30, 1997, the Portfolios incurred the
following distribution expenses:
    
   
<TABLE>
<CAPTION>
                                                                AMOUNT PAID
                                                                  TO 3RD
                                                                PARTIES BY
                                                                    THE                                  PROSPECTUS
                                                                DISTRIBUTOR                             PRINTING AND
                                                                    FOR                                   MAILING
                                                                DISTRIBUTION                             COSTS (NEW
                                                                  RELATED       SALES                   SHAREHOLDERS
                                                      TOTAL      SERVICES     EXPENSES    ADVERTISING      ONLY)
PORTFOLIO/CLASS                                     ($AMOUNT)    ($AMOUNT)    ($AMOUNT)    ($AMOUNT)     ($AMOUNT)
- --------------------------------------------------  ---------   -----------   ---------   -----------   ------------
<S>                                                 <C>         <C>           <C>         <C>           <C>
CLASS D
  Small Cap Growth Portfolio......................  $  4,557      4,$557      $      0        $ 0         $     0
 
<CAPTION>
 
                                                    COSTS ASSOCIATED
                                                    WITH REGISTRATION
PORTFOLIO/CLASS                                      FEES ($AMOUNT)
- --------------------------------------------------  -----------------
<S>                                                 <C>
CLASS D
  Small Cap Growth Portfolio......................  $        0
</TABLE>
    
 
   
                       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 each
Executive Officer is SEI Investments, Oaks, Pennsylvania 19456. Certain officers
of the Trust also serve as 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, Boston 1784 Funds-Registered Trademark-, CoreFunds,
Inc., CrestFunds, Inc., CUFUND, The Expedition Funds, FMB Funds, Inc., First
American Funds, Inc., First American Investment Funds, Inc., First American
Strategy Funds, Inc., HighMark Funds, Marquis Funds-Registered Trademark-,
Monitor Funds, Morgan Grenfell Investment Trust, The PBHG Funds, Inc., PBHG
Insurance Series Fund, Inc., The Pillar Funds, Santa Barbara Group of Mutual
Funds, Inc., SEI Asset Allocation Trust, SEI Daily Income Trust, SEI Index
Funds, SEI Institutional Investments Trust, SEI International Trust, SEI Liquid
Asset Trust, SEI Tax Exempt Trust, Stepstone Funds, STI Classic Funds, STI
Classic Variable Trust and TIP Funds, each of which is an open-end management
investment company managed by SEI Fund Management or its affiliates and, except
for Santa Barbara Group of Mutual Funds, Inc., are distributed by SEI
Investments Distribution Co.
    
 
   
    ROBERT A. NESHER (DOB 08/17/46)--Chairman of the Board of
Trustees*--Currently performs various services on behalf of SEI Investments for
which Mr. Nesher is compensated. Executive Vice President of SEI Investments,
1986-1994. Director and Executive Vice President of the Manager and the
Distributor, 1981-1994. Trustee of the Arbor Fund, Marquis
Funds-Registered Trademark-, The Advisors' Inner Circle Fund, The Expedition
Funds, SEI Liquid Asset Trust, SEI Daily Income Trust, SEI Tax Exempt Trust, SEI
Index Funds, SEI Asset Allocation Trust, SEI Institutional Investments Trust,
SEI International Trust, Boston 1784 Funds-Registered Trademark-, Pillar Funds
and Rembrandt Funds-Registered Trademark-.
    
 
   
    WILLIAM M. DORAN (DOB 05/26/40)--Trustee*--2000 One Logan Square,
Philadelphia, PA 19103. Partner, Morgan, Lewis & Bockius LLP (law firm), counsel
to the Trust, Manager, Adviser and Distributor, Director and Secretary of SEI
Investments and Secretary of the Manager, Adviser and Distributor. Trustee of
The Arbor Fund, Marquis Funds-Registered Trademark-, The Advisors' Inner Circle
Fund, The Expedition Funds, SEI Liquid Asset Trust, SEI Daily Income Trust, SEI
Tax Exempt Trust, SEI Index Funds, SEI Asset Allocation Trust, SEI Institutional
Investments Trust and SEI International Trust.
    
 
   
    F. WENDELL GOOCH (DOB 12/03/37)--Trustee**--P.O. Box 190, Paoli, IN 47454.
President, Orange County Publishing Co., Inc. since October 1981. Retired.
Publisher of the Paoli News and the Paoli Republican and Editor of the Paoli
Republican from January 1981 to 1997. 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, SEI Liquid Asset
Trust, SEI Daily Income Trust, SEI Tax Exempt Trust, SEI Index
    
 
                                      S-20
<PAGE>
   
Funds SEI Asset Allocation Trust, SEI Institutional Managed Trust, SEI
Institutional Investments Trust and SEI International Trust.
    
 
   
    FRANK E. MORRIS (DOB 12/30/23)--Trustee**--105 Walpole Street, Dover, MA
02030. Retired since 1990. Peter Drucker Professor of Management, Boston
College, 1989-1990. President, Federal Reserve Bank of Boston, 1968-1988.
Trustee of The Arbor Fund, Marquis Funds-Registered Trademark-, The Advisors'
Inner Circle Fund, SEI Liquid Asset Trust, SEI Daily Income Trust, SEI Tax
Exempt Trust, SEI Index Funds, SEI Asset Allocation Trust, SEI Institutional
Managed Trust, SEI Institutional Investments Trust and SEI International Trust.
    
 
   
    JAMES M. STOREY (DOB 04/12/31)--Trustee**--Retired; Partner, Dechert Price &
Rhoads, from September 1987-December 1993; Trustee of The Arbor Fund, Marquis
Funds-Registered Trademark-, The Advisors' Inner Circle Fund, The Expedition
Funds, SEI Liquid Asset Trust, SEI Daily Income Trust, SEI Tax Exempt Trust, SEI
Index Funds, SEI Asset Allocation Trust, SEI Institutional Investments Trust,
and SEI International Trust.
    
 
   
    GEORGE J. SULLIVAN, JR. (DOB 11/13/42)--Trustee**--General Partner, Teton
Partners, L.P., since 1991; Chief Financial Officer, Noble Partners, L.P., since
1991; Treasurer and Clerk, Peak Asset Management, Inc., since 1991; Trustee,
Navigator Securities Lending Trust, since 1995. Trustee of SEI Liquid Asset
Trust, SEI Daily Income Trust, SEI Tax Exempt Trust, SEI Index Funds, SEI Asset
Allocation Trust, SEI Institutional Investments Trust, and SEI International
Trust.
    
 
   
    DAVID G, LEE (DOB 04/16/52)--President and Chief Executive Officer--Senior
Vice President of the Manager, Adviser and Distributor since 1993. Vice
President of the Manager and Distributor, 1991-1993. President, GW Sierra Trust
Funds before 1991.
    
 
   
    SANDRA K. ORLOW (DOB 10/18/53)--Vice President and Assistant Secretary--Vice
President and Assistant Secretary of the Manager, Adviser and Distributor since
1988.
    
 
   
    KEVIN P. ROBINS (DOB 04/15/61)--Vice President and Assistant
Secretary--Senior Vice President and General Counsel of SEI Investments, the
Manager, Adviser and Distributor since 1994. Vice President and Assistant
Secretary of SEI Investments, the Manager, Adviser and Distributor, 1992-1994.
Associate, Morgan, Lewis & Bockius LLP (law firm), 1988-1992.
    
 
   
    RICHARD W. GRANT (DOB 10/25/45)--Secretary--2000 One Logan Square,
Philadelphia, PA 19103, Partner, Morgan, Lewis & Bockius LLP (law firm), counsel
to the Trust, Manager, Adviser and Distributor.
    
 
   
    KATHRYN L. STANTON (DOB 11/19/58)--Vice President and Assistant
Secretary--Vice President, Deputy General Counsel and Assistant Secretary of SEI
Investments, the Manager, Adviser and Distributor since 1994. Associate, Morgan,
Lewis & Bockius LLP (law firm), 1989-1994.
    
 
   
    MARK E. NAGLE (DOB 10/20/59)--Controller and Chief Financial Officer--Vice
President of Fund Accounting and Administration for SEI Fund Resources and the
Manager since 1996. Vice President of Fund Accounting, BISYS Fund Services
1995-1996. Senior Vice President and Site Manager, Fidelity Investments
(1981-1995).
    
 
   
    TODD CIPPERMAN (DOB 02/14/66)--Vice President and Assistant Secretary--Vice
President and Assistant Secretary of SEI Investments, the Manager, Adviser and
the Distributor since 1995. Associate, Dewey Ballantine (law firm) (1994-1995).
Associate, Winston & Strawn (law firm) (1991-1994).
    
 
- ------------------------
 
   
 * Messrs. Nesher and Doran are Trustees who may be deemed to be "interested
   persons" of the Trust as the term is defined in the 1940 Act.
    
 
   
** Messrs. Gooch, Storey, Morris and Sullivan serve as members of the Audit
   Committee of the Trust.
    
 
   
    The Trustees and officers of the Trust own less than 1% of the outstanding
shares of the Trust. The Trust pays the fees for unaffiliated Trustees.
    
 
                                      S-21
<PAGE>
   
    Compensation of officers and affiliated Trustees of the Trust is paid by the
Manager. For the fiscal year ended September 30, 1997, the Trust paid the
following amounts to the Trustees.
    
 
   
<TABLE>
<CAPTION>
                                       AGGREGATE            PENSION OR
                                   COMPENSATION FROM    RETIREMENT BENEFITS   ESTIMATED ANNUAL TOTAL COMPENSATION FROM REGISTRANT
                                   REGISTRANT FOR FYE   ACCRUED AS PART OF     BENEFITS UPON   AND FUND COMPLEX PAID TO DIRECTORS
NAME OF PERSON AND POSITION             9/30/97            FUND EXPENSES         RETIREMENT              FOR FYE 9/30/97
- ---------------------------------  ------------------   -------------------   ---------------- -----------------------------------
<S>                                <C>                  <C>                   <C>              <C>
Robert A. Nesher, Trustee........       $     0                 $0                   $0        $0 for services on 8 boards
William M. Doran, Trustee........       $     0                 $0                   $0        $0 for services on 8 boards
F. Wendell Gooch, Trustee........       $25,367                 $0                   $0        $96,750 for services on 8 boards
Frank E. Morris, Trustee.........       $25,367                 $0                   $0        $96,750 for services on 8 boards
James M. Storey, Trustee.........       $25,367                 $0                   $0        $96,750 for services on 8 boards
George J. Sullivan, Trustee......       $25,367                 $0                   $0        $96,750 for services on 8 boards
</TABLE>
    
 
- ------------------------
 
   
Mr. Edward W. Binshadler serves as a consultant to the Audit Committee and
receives as compensation $5,000 per Audit Committee meeting attended.
    
 
                                  PERFORMANCE
 
   
    From time to time, each Portfolio 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 Portfolio refers to the annualized
income generated by an investment in such Portfolio over a specified 30-day
period. The yield is calculated by assuming that the income generated by the
investment during that period is 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.
 
    Based on the foregoing, the 30-day yield for the Portfolios for the 30-day
period ended September 30, 1996 were as follows:
 
   
<TABLE>
<CAPTION>
FUND                                                                              30 DAY YIELD
- --------------------------------------------------------------------------------  -------------
<S>                                                                               <C>
CLASS A
  Balanced Portfolio............................................................         2.61%
  Bond Portfolio(1).............................................................         5.65%
  Capital Appreciation Portfolio................................................         0.95%
  Core Fixed Income Portfolio...................................................         6.05%
  Equity Income Portfolio.......................................................         1.97%
  High Yield Bond Portfolio.....................................................         7.68%
  Large Cap Growth Portfolio....................................................         0.11%
  Large Cap Value Portfolio.....................................................         1.46%
  Mid-Cap Portfolio.............................................................         0.54%
  Small Cap Growth Portfolio....................................................         0.00%
  Small Cap Value Portfolio.....................................................         0.24%
CLASS D
  Small Cap Growth Portfolio....................................................         0.00%
</TABLE>
    
 
- ------------------------
 
   
(1) The Bond Portfolio was terminated on December 31, 1997.
    
 
                                      S-22
<PAGE>
    The total return of a Portfolio 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 Portfolio 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.
 
   
    Based on the foregoing, the average annual total returns for the Portfolios
from inception through September 30, 1997 and for the one, five and ten year
periods ended September 30, 1997, were as follows:
    
 
   
<TABLE>
<CAPTION>
                                                                          AVERAGE ANNUAL TOTAL RETURN
                                                                  --------------------------------------------
<S>                                 <C>                           <C>        <C>        <C>        <C>
                                                                                                      SINCE
PORTFOLIO                           CLASS                         ONE YEAR   FIVE YEAR  TEN YEAR    INCEPTION
- ----------------------------------  ----------------------------  ---------  ---------  ---------  -----------
Balanced Portfolio                  Class A(1)..................      22.38%     12.40%     *           12.15%
 
Bond Portfolio**                    Class A(2)..................       9.97%      7.48%     10.48%       9.34%
 
Capital Appreciation Portfolio      Class A(3)..................      34.02%     17.18%     *           16.34%
 
Core Fixed Income Portfolio         Class A(4)..................       9.80%      6.44%      8.25%       8.00%
 
Equity Income Portfolio             Class A(5)..................      33.46%     18.13%     *           15.76%
 
High Yield Bond Portfolio           Class A(6)..................      15.30%     *          *           16.00%
 
Large Cap Growth Portfolio          Class A(7)..................      44.35%     *          *           33.58%
 
Large Cap Value Portfolio           Class A(8)..................      44.12%     17.30%     12.10%      12.65%
 
Mid-Cap Portfolio                   Class A(9)..................      43.13%     *          *           18.77%
 
Small Cap Growth Portfolio          Class A(10).................      17.23%     23.76%     *           23.07%
                                    Class D(11) (no load).......      16.80%     23.43%     *           22.70%
                                    Class D(11) (load)..........      10.95%     22.18%     *           21.62%
 
Small Cap Value Portfolio           Class A(12).................      47.16%     *          *           28.19%
</TABLE>
    
 
- ------------------------
 
 * Not in operation during period.
 
   
 ** The Bond Portfolio was terminated on December 31, 1997.
    
 
(1) Commenced operations August 7, 1990.
 
(2) Commenced operations May 4, 1987.
 
(3) Commenced operations March 1, 1988.
 
(4) Commenced operations May 4, 1987.
 
(5) Commenced operations June 2, 1988.
 
(6) Commenced operations January 11, 1995.
 
 (7) Commenced operations December 20, 1994.
 
 (8) Commenced operations April 20, 1987.
 
 (9) Commenced operations February 16, 1993.
 
(10) Commenced operations April 20, 1992.
 
(11) Commenced operations May 2, 1994.
 
(12) Commenced operations December 20, 1995.
 
    The Portfolios may, from time to time, compare their performance to other
mutual funds tracked by mutual fund rating services, to broad groups of
comparable mutual funds or to unmanaged indices which may assume investment of
dividends but generally do not reflect deductions for administrative and
management costs.
 
                                      S-23
<PAGE>
                       PURCHASE AND REDEMPTION OF SHARES
 
    The purchase and redemption price of shares is the net asset value of each
share. A Portfolio's securities are valued by SEI Management pursuant to
valuations provided by an independent pricing service (generally the last quoted
sale price). 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.
 
   
    Information about the market value of each portfolio security may be
obtained by SEI Management from an independent pricing service. The pricing
service relies primarily on prices of actual market transactions as well as
trader quotations. However, the pricing service may use a matrix system to
determine valuations of fixed income securities. 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 used by the pricing service and its valuations are reviewed by the
officers of the Trust under the general supervision of the Trustees.
    
 
   
    Securities with remaining maturities of 60 days or less will be valued by
the amortized cost method, which involves valuing a security at its cost on the
date of purchase and thereafter (absent unusual circumstances) assuming a
constant amortization to maturity of any discount or premium, regardless of the
impact of fluctuations in general market rates of interest on the value of the
instrument. While this method provides certainty in valuation, it may result in
periods during which value, as determined by this method, is higher or lower
than the price the Trust would receive if it sold the instrument. During periods
of declining interest rates, the daily yield of a Portfolio may tend to be
higher than a like computation made by a company with identical investments
utilizing a method of valuation based upon market prices and estimates of market
prices for all of its portfolio securities. Thus, if the use of amortized cost
by a Portfolio resulted in a lower aggregate portfolio value on a particular
day, a prospective investor in a Portfolio would be able to obtain a somewhat
higher yield that would result from investment in a company utilizing solely
market values, and existing shareholders in the Portfolio would experience a
lower yield. The converse would apply during a period of rising interest rates.
    
 
    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 a 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
Portfolios of the Trust during any 90-day period of up to the lesser of $250,000
or 1% of the Trust's net assets.
 
    A gain or loss for federal income tax purposes may be realized by a taxable
shareholder upon an in-kind redemption depending upon the shareholder's basis in
the shares of the Trust redeemed.
 
   
    Purchases and redemptions of shares of the Portfolios 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, Martin Luther King, Jr. 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
    
 
                                      S-24
<PAGE>
the right to suspend sales of shares of the Portfolios for any period during
which the New York Stock Exchange, the Manager, the Distributor, and/or the
Custodian are not open for business.
 
REDUCTIONS IN SALES CHARGES
 
    In calculating the sales charge rates applicable to current purchases of
Class D shares, members of the following affinity groups and clients of the
following broker-dealers, each of which has entered into an agreement with the
Distributor, are entitled to the following percentage-based discounts from the
otherwise applicable sales charge:
 
   
<TABLE>
<CAPTION>
                                                                          PERCENTAGE     DATE OFFER
NAME OF GROUP                                                              DISCOUNT        STARTS
- ----------------------------------------------------------------------  ---------------  ----------
<S>                                                                     <C>              <C>
BHC Securities, Inc. .................................................            10%     12/29/94
First Security Investor Services, Inc. ...............................            10%     12/29/94
</TABLE>
    
 
    Those members or clients who take advantage of a percentage-based reduction
in the sales charge during the offering period noted above may continue to
purchase shares at the reduced sales charge rate after the offering period
relating to each such purchaser's affinity group or broker-dealer relationship
has terminated.
 
    For more information regarding reductions in sales charges, please contact
the Distributor at 1-800-437-6016.
 
                     SHAREHOLDER SERVICES (CLASS D SHARES)
 
    The following is a description of plans and privileges by which the sale
charges imposed on the Class D shares of the Small Cap Growth Portfolio may be
reduced.
 
    RIGHT OF ACCUMULATION:  A shareholder qualifies for cumulative quantity
discounts when his or her new investment, together with the current market value
of all holdings of that shareholder in certain eligible portfolios, reaches a
discount level. See "Purchase and Redemption of Shares" in the Prospectus for
the sales charge on quantity purchases.
 
   
    LETTER OF INTENT:  The reduced sales charges are also applicable to the
aggregate amount of purchases made by any such purchaser previously enumerated
within a 13-month period pursuant to a written Letter of Intent provided to the
Distributor that (i) does not legally bind the signer to purchase any set number
of shares and (ii) provides for the holding in escrow by the Administrator of 5%
of the amount purchased until such purchase is completed within the 13-month
period. A Letter of Intent may be dated to include shares purchased up to 90
days prior to the date the Letter of Intent is signed. The 13-month period
begins on the date of the earliest purchase. If the intended investment is not
completed, the Administrator will surrender an appropriate number of the
escrowed shares for redemption in order to recover the difference between the
sales charge imposed under the Letter of Intent and the sales charge that would
have otherwise been imposed.
    
 
    DISTRIBUTION INVESTMENT OPTION:  Distributions of dividends and capital
gains made by the Portfolios may be automatically invested in shares of one of
the Portfolios if shares of the Portfolio 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 other Portfolios
and consider the differences in objectives and policies before making any
investment.
 
    REINSTATEMENT PRIVILEGE:  A shareholder who has redeemed shares of the
Portfolio has a one-time right to reinvest the redemption proceeds in shares of
the Portfolios 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
 
                                      S-25
<PAGE>
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 Portfolio's Class D shares for which
payment has been received (I.E., an established account), may be exchanged for
Class D shares of SEI Liquid Asset Trust, SEI Tax Exempt Trust and SEI
International Trust ("SEI Funds"). Exchanges are made at net asset value plus
any applicable sales charge. SEI Funds' portfolios that are not money market
portfolios currently impose a sales charge on Class D shares. A shareholder who
exchanges into one of these "non-money market" portfolios will have to pay a
sales charge on any portion of the exchanged Class D shares for which he or she
has not previously paid a sales charge. If a shareholder has paid a sales charge
on Class D shares, no additional sales charge will be assessed when he or she
exchanges those Class D shares for other Class D shares. If a shareholder buys
Class D shares of a "non-money market" fund and receives a sales load waiver, he
or she will be deemed to have paid the sales load for purposes of this exchange
privilege. In calculating any sales charge payable on an exchange transaction,
the SEI Funds will assume that the first shares a shareholder exchanges are
those on which he or she has already paid a sales charge. Sales charge waivers
may also be available under certain circumstances, as described in the
portfolios' prospectuses. The Trust reserves the right to change the terms and
conditions of the exchange privilege discussed herein, or to terminate the
exchange privilege, upon sixty 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.
 
    A shareholder may exchange the shares of the Portfolio's Class D 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.
 
    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 the Portfolio (the "Old Portfolio") to be exchanged and the
purchase at net asset value (I.E., without a sales charge) of the shares of the
other portfolios (the "New Portfolios"). 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 retirement plan or other
tax-exempt account. 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 each 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 Portfolios, and thus the purchase
of shares of the New Portfolios, may be delayed for up to seven days if the
Portfolio determines that such delay would be in the best interest of all of its
shareholders. Investment dealers which have satisfied criteria established by
the Portfolios may also communicate a Shareholder's Exchange Request to the
Portfolio subject to the restrictions set forth above. No more than five
exchange requests may be made in any one telephone Exchange Request.
 
                                     TAXES
 
    The following is only a summary of certain additional federal tax
considerations generally affecting the Portfolios and their shareholders that
are not described in the Portfolios' prospectuses. No attempt is made to present
a detailed explanation of the federal, state or local tax treatment of the
Portfolios or their shareholders and the discussion here and in the Portfolios'
prospectuses is not intended as a substitute for careful tax planning.
 
   
    This discussion of federal income tax consequences is based on 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 Portfolio is treated as a separate entity for federal income tax
purposes and is not combined with the Trust's other Portfolios. Each Portfolio
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
 
                                      S-26
<PAGE>
   
that is distributed to shareholders. In order to qualify for treatment as a RIC,
a Portfolio 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
losses) ("Distribution Requirement") and also must meet several additional
requirements. Among these requirements are the following: (i) at least 90% of a
Portfolio'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) at the close of
each quarter of a Portfolio'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 Portfolio's assets and that does not represent more
than 10% of the outstanding voting securities of such issuer; and (iii) at the
close of each quarter of a Portfolio'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 engaged in the same, similar, or related trades or businesses if the
Portfolio owns at least 20% of the voting power of such issuers.
    
 
    Notwithstanding the Distribution Requirement described above, which only
requires a Portfolio to distribute at least 90% of its annual investment company
taxable income and does not require any minimum distribution of net capital
gain, a Portfolio 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 Portfolio intends to make sufficient distributions to avoid
liability for the federal excise tax. A Portfolio 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 Portfolio 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 Portfolio 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 Portfolio 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 Portfolio either an incorrect tax identification number or no
number at all, (2) who is subject to backup withholding by the Internal Revenue
Service for failure to properly report payments of interest or dividends, or (3)
who has failed to certify to the Portfolio that such shareholder is not subject
to backup withholding.
 
    With respect to investments in STRIPS, TR's, TIGR's, LYONs, CATS and other
Zero Coupon securities which are sold at original issue discount and thus do not
make periodic cash interest payments, a Portfolio will be required to include as
part of its current income the imputed interest on such obligations even though
the Portfolio has not received any interest payments on such obligations during
that period. Because each Portfolio distributes all of its net investment income
to its shareholders, a Portfolio may have to sell Portfolio securities to
distribute such imputed income which may occur at a time when the advisers would
not have chosen to sell such securities and which may result in taxable gain or
loss.
 
STATE TAXES
 
    A Portfolio is not liable for any income or franchise tax in Massachusetts
if it qualifies as a RIC for federal income tax purposes. Distributions by the
Portfolio to shareholders and the ownership of shares may be subject to state
and local taxes. Shareholders should consult their own tax advisers regarding
the affect of federal, state and local taxes in their own individual
circumstances.
 
                                      S-27
<PAGE>
                             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 are responsible for placing orders to
execute Portfolio 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 Portfolios 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 Portfolio 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
Portfolios 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 Portfolios' 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, SIMC has
adopted a policy respecting the receipt of research and related products and
services in connection with transactions effected for Portfolios operating
within the "Manager of Managers" structure. Under this policy, SIMC and the
various firms that serve as sub-advisers to certain Portfolios of the Trust, in
the exercise of joint investment discretion over the assets of a Portfolio, may
direct a substantial portion of a Portfolio's brokerage to the Distributor. All
such transactions directed to the Distributor must be accomplished in a manner
that is consistent with the Trust's policy to achieve best net results, and must
comply with the Trust's procedures regarding the execution of transactions
through affiliated brokers.
    
 
                                      S-28
<PAGE>
   
    For the fiscal year ended September 30, 1997, the Portfolios paid the
following brokerage fees:
    
 
   
<TABLE>
<CAPTION>
                                                                                                                           TOTAL
                                                                                                                         BROKERAGE
                                                                                                                        COMMISSIONS
                                                                                                                        PAID TO THE
                                                      TOTAL $ AMOUNT                                                    DISTRIBUTOR
                                                       OF BROKERAGE     % OF TOTAL       % OF TOTAL        TOTAL $          IN
                                     TOTAL $ AMOUNT    COMMISSIONS      BROKERAGE         BROKERED        AMOUNT OF     CONNECTION
                                      OF BROKERAGE       PAID TO       COMMISSIONS      TRANSACTIONS      BROKERAGE        WITH
                                      COMMISSIONS       AFFILIATED       PAID TO      EFFECTED THROUGH   COMMISSIONS    REPURCHASE
                                      PAID IN FYE       BROKERS IN      AFFILIATED       AFFILIATED        PAID FOR      AGREEMENT
FUND                                    9/30/97        FYE 9/30/97       BROKERS          BROKERS          RESEARCH     TRANSACTIONS
- -----------------------------------  --------------   --------------   ------------   ----------------   ------------   -----------
<S>                                  <C>              <C>              <C>            <C>                <C>            <C>
Balanced Portfolio.................       $89,948          $7,443         8.27%            7.84%                   $       $1,180
Bond Portfolio(1)..................            $0              $0            0                0%                  $0         $398
Capital Appreciation Portfolio.....      $720,618         $50,855         6.96%            5.67%                   $       $6,882
Core Fixed Income Portfolio........            $0              $0            0                0                   $0      $50,830
Equity Income Portfolio............      $273,210        $119,347        43.68%           29.09%                   $       $3,041
High Yield Bond Portfolio..........            $0              $0            0                0                   $0           $0
Large Cap Growth Portfolio.........      $853,946        $383,294        44.96%           35.35%                   $       $5,829
Large Cap Value Portfolio..........      $967,297        $235,717        24.37%           20.08%                   $       $7,734
Mid-Cap Portfolio..................       $41,511              $0            0                0                              $610
Small Cap Growth Portfolio.........      $803,002         $77,385         9.64%            7.26%                   $      $13,669
Small Cap Value Portfolio..........      $639,229         $40,859         6.39%            3.40%                   $       $6,997
</TABLE>
    
 
- ------------------------
 
 * Not in operation during such period.
 
   
(1) The Bond Portfolio was terminated on December 31, 1997.
    
 
   
    For the fiscal years ended September 30, 1995 and 1996, the Portfolios paid
the following brokerage fees:
    
 
   
<TABLE>
<CAPTION>
                                                                       TOTAL $ AMOUNT OF
                                                 TOTAL $ AMOUNT OF         BROKERAGE
                                               BROKERAGE COMMISSIONS    COMMISSIONS PAID
                                                        PAID             TO AFFILIATES
                                               ----------------------  ------------------
<S>                                            <C>         <C>         <C>       <C>
FUND                                              1995        1996       1995      1996
- ---------------------------------------------  ----------  ----------  --------  --------
Balanced Portfolio...........................  $  148,731  $  117,731  $      0  $ 14,167
Bond Portfolio(1)............................  $        0  $        0  $      0  $      0
Capital Appreciation Portfolio...............  $1,577,921  $  901,374  $ 20,042  $ 30,830
Core Fixed Income Portfolio..................  $        0  $  125,097  $      0  $ 18,090
Equity Income Portfolio......................  $  648,410  $  387,891  $ 33,725  $  5,760
High Yield Bond Portfolio....................  $        0  $        0  $      0  $      0
Large Cap Growth Portfolio...................  $  270,371  $  737,152  $192,232  $ 65,986
Large Cap Value Portfolio....................  $  804,877  $  784,758  $115,823  $186,841
Mid-Cap Portfolio............................  $  264,386  $   40,892  $      0  $ 22,811
Small Cap Growth Portfolio...................  $        0  $  551,149  $      0  $ 15,867
Small Cap Value Portfolio....................  $  191,324  $  500,459  $  2,814  $ 25,669
</TABLE>
    
 
- ------------------------
 
   
(1) The Bond Portfolio was terminated on December 31, 1997.
    
 
    Class D shareholders paid the following sales charges:
 
   
<TABLE>
<CAPTION>
                                                                                  DOLLAR AMOUNT OF CHARGES
                                                  DOLLAR AMOUNT OF CHARGES             RETAINED BY SFS
                                               -------------------------------  -----------------------------
PORTFOLIO/CLASS                                   1995        1996      1997      1995       1996      1997
- ---------------------------------------------  ----------    -----     -------  ---------  ---------  -------
<S>                                            <C>         <C>         <C>      <C>        <C>        <C>
Small Cap Growth Portfolio--Class D..........  $11,874.23         N/A      N/A  $1,455.18        N/A      N/A
</TABLE>
    
 
                                      S-29
<PAGE>
    For each of the Portfolios, there is no material difference between the
percentage of brokerage commissions paid to the Distributor as compared to all
brokerage commissions and the percentage of the amount of brokered transactions
as compared to the aggregate amount of all brokered transactions.
 
   
    The portfolio turnover rate for each Portfolio for the fiscal years ending
September 30, 1996 and 1997 was as follows:
    
 
   
<TABLE>
<CAPTION>
                                                               TURNOVER
                                                                 RATE
                                                              -----------
FUND                                                          1996   1997
- ------------------------------------------------------------  ----   ----
<S>                                                           <C>    <C>
Balanced Portfolio..........................................  143%   197%
Bond Portfolio(1)...........................................   66%   305%
Capital Appreciation Portfolio..............................  153%   178%
Core Fixed Income Portfolio.................................  311%   216%
Equity Income Portfolio.....................................   43%    40%
High Yield Bond Portfolio...................................   55%    68%
Large Cap Growth Portfolio..................................   90%    73%
Large Cap Value Portfolio...................................   75%    67%
Mid-Cap Portfolio...........................................  101%    92%
Small Cap Growth Portfolio..................................  167%   107%
Small Cap Value Portfolio...................................  121%    98%
</TABLE>
    
 
- ------------------------
 
   
(1) The Bond Portfolio was terminated on December 31, 1997.
    
 
    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, a 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 a Portfolio's
advisers or sub-advisers may, consistent with the interests of the Portfolio,
select brokers on the basis of the research services they provide to the
Portfolio's 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 will be in addition to and not
in lieu of the services required to be performed by a Portfolio's advisers under
the Advisory and Sub-Advisory Agreements. If in the judgement of a Portfolio's
advisers, the Portfolio, or other accounts managed by the Portfolio's advisers,
will be benefitted by supplemental research services, the Portfolio's 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 a Portfolio's advisers will not
necessarily be reduced as a result of the receipt of such supplemental
information.
 
                                      S-30
<PAGE>
   
    The Trust is required to identify any securities of its "regular brokers or
dealers" (as such term is defined in the 1940 Act) which the Trust has acquired
during its most recent fiscal year. As of September 30, 1997, the Trust held the
following securities:
    
 
   
<TABLE>
<CAPTION>
PORTFOLIO                            TYPE OF SECURITY             NAME OF ISSUER        AMOUNT (000)
- ------------------------------  --------------------------  --------------------------  -------------
<S>                             <C>                         <C>                         <C>
Large Cap Growth                Equity                      Merrill Lynch & Co.          $     9,021
                                Equity                      Morgan Stanley               $     9,353
                                Repurchase Agreement        Lehman Brothers              $     7,613
 
Small Cap Growth                Repurchase Agreement        J.P. Morgan Securities,      $    19,147
                                                              Inc. ("J.P. Morgan")
Equity Income                   Equity                      J.P. Morgan                  $     3,014
                                Repurchase Agreement        J.P. Morgan                  $     9,587
 
Large Cap Value                 Equity                      Lehman Brothers              $     4,177
                                Debt                        J.P. Morgan                  $    24,298
                                Equity                      Morgan Stanley               $     2,187
                                Equity                      Merrill Lynch                $     7,018
                                Equity                      Salomon Brothers, Inc.       $     3,827
                                Equity                      Bear Stearns                 $     9,838
                                Repurchase Agreement        J.P. Morgan                  $    17,004
 
Small Cap Value                 Repurchase Agreement        Lehman Brothers              $    23,270
 
Mid-Cap                         Equity                      Bear Stearns                 $       695
                                Equity                      Paine Webber                 $       196
                                Repurchase Agreement        J.P. Morgan                  $     2,767
 
Capital Appreciation            Repurchase Agreement        J.P. Morgan                  $     5,834
 
Balanced                        Debt                        Bear Stearns                 $       807
                                Debt                        Merrill Lynch                $     1,126
                                Repurchase Agreement        J.P. Morgan                  $     1,435
 
Core Fixed Income               Debt                        Bear Stearns                 $     5,688
                                Debt                        Merrill Lynch                $     3,758
                                Debt                        Lehman Brothers              $    10,060
                                Debt                        Paine Webber                 $     1,204
                                Debt                        J.P. Morgan                  $     2,225
                                Debt                        Goldman Sachs                $     4,612
                                Debt                        Salomon Brothers             $     3,418
                                Repurchase Agreement        J.P. Morgan                  $    47,602
</TABLE>
    
 
                             DESCRIPTION OF SHARES
 
    The Declaration of Trust authorizes the issuance of an unlimited number of
shares of each Portfolio, each of which represents an equal proportionate
interest in that Portfolio. Each share upon liquidation entitles a shareholder
to a PRO RATA share in the net assets of that Portfolio, after taking into
account additional distribution 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
 
                                      S-31
<PAGE>
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 wilful
misfeasance, bad faith, gross negligence or reckless disregard of his or her
duties.
 
                                     VOTING
 
    Where the Trust's Prospectuses or Statement of Additional Information state
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 Portfolio's shares present at a meeting if the holders of more than 50%
of the outstanding shares of the Portfolio are present or represented by Proxy,
or (ii) more than 50% of the affected Portfolio'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 business 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.
 
              CONTROL PERSONS AND PRINCIPAL HOLDERS OF SECURITIES
 
   
    As of January 1, 1998, the following persons were the only persons who were
record owners (or to the knowledge of the Trust, beneficial owners) of 5% or
more of the shares of the Portfolios. The Trust believes that most of the shares
referred to below were held by the below persons in accounts for their
fiduciary, agency, or custodial customers.
    
 
   
<TABLE>
<CAPTION>
ADDRESS                                    NUMBER OF SHARES                      PERCENTAGE
- ---------------------------------  ---------------------------------  ---------------------------------
<S>                                <C>                                <C>
 
Large Cap Growth
 
SEI Trust Company                           31,500,333.6540                        67.39%
Attn: Jackie Esposito
Oaks, PA 19456
 
Small Cap Value
 
SEI Trust Company                           14,239,294.8180                        64.03%
Attn: Jackie Esposito
Oaks, PA 19456
 
High Yield Bond
 
SEI Trust Company                           15,033,231.8470                        83.99%
Attn: Jackie Esposito
Oaks, PA 19456
</TABLE>
    
 
                                      S-32
<PAGE>
   
<TABLE>
<CAPTION>
ADDRESS                                    NUMBER OF SHARES                      PERCENTAGE
- ---------------------------------  ---------------------------------  ---------------------------------
<S>                                <C>                                <C>
Large Cap Value
 
SEI Trust Company                           34,885,484.7750                        66.14%
Attn: Jackie Esposito
Oaks, PA 19456
 
Balanced
 
SEI Trust Company                           2,633,016.0330                         65.20%
Attn: Jackie Esposito
Oaks, PA 19456
 
NABANK & CO                                  492,134.9540                          12.19%
Attn: Record Keeping
P.O. Box 2180
Tulsa, OK 74101-2180
 
Capital Appreciation
 
Eleven & Co                                  679,781.8300                           6.42%
Trust Company Bank
Attn: Gregory Kirk
P.O. Box 105870
Atlanta, GA 30348-5870
 
Charles Schawb and Co.                       787,471.9950                           7.43%
101 Montgomery Street
Attn: Mutual Funds Dept.
San Francisco, CA 94101-4122
 
Valle                                        538,251.1740                           5.08%
c/o Marshall & Iisley
1000 North Water Street - TR11
Milwaukee, WI 53202-3197
 
Equity Income
 
SEI Trust Company                           2,795,580.9590                         26.39%
Attn: Jackie Esposito
Oaks, PA 19456
 
Sheldon & Co. (Integra)                      767,231.6470                           7.70%
c/o National City
Attn: Trust Mutual Funds
P.O. Box 94777, LOC 5312
Cleveland, OH 44101-4777
 
Kaw & Co. Y Bank                             516,720.2430                           5.19%
c/o One Valley Bank
Attn: Pam Taylor
P.O. Box 1793
One Valley Square
Charleston, WV 25309-9045
</TABLE>
    
 
   
                                      S-33
    
<PAGE>
   
<TABLE>
<CAPTION>
ADDRESS                                    NUMBER OF SHARES                      PERCENTAGE
- ---------------------------------  ---------------------------------  ---------------------------------
<S>                                <C>                                <C>
Meg and Co.                                  524,181.2140                           5.26%
c/o United States National Bank
Attn: Debbie Moraca
P.O. Box 520
Johnstown, PA 15907-0520
 
Core Fixed Income
 
SEI Trust Company                           5,572,710.6520                          5.18%
Attn: Jackie Esposito
Oaks, PA 19456
 
SEI Trust Company                           66,446,283.4470                        61.81%
Attn: Jackie Esposito
Oaks, PA 19456
 
Small Cap Growth
 
Valle                                       1,760,287.0030                          5.59%
c/o Marshall & Iisley
1000 North Water Street - TR11
Milwaukee, WI 53202-3197
 
SEI Trust Company                           14,297,190.5680                        45.40%
Attn: Jackie Esposito
Oaks, PA 19456
 
Mid-Cap
 
FTC & Co.                                    125,794.9540                           5.36%
Attn: Datalynx House
Account
P.O. Box 173736
 
BMS and Company                              178,134.2520                           7.60%
c/o Central Trust Bank
Attn: Wanda McGlade
P.O. Box 779
Jefferson City, MO 65102-0779
</TABLE>
    
 
                                    EXPERTS
 
   
    The financial statements incorporated by reference into this Statement of
Additional Information have been incorporated by reference 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
 
   
    The Trust's financial statements for the fiscal year ended September 30,
1997, including notes thereto and the report of Price Waterhouse LLP thereon,
are herein incorporated by reference from the Trust's 1997 Annual Report. A copy
of the 1997 Annual Report must accompany the delivery of this Statement of
Additional Information.
    
 
                                      S-34
<PAGE>
                           PART C. OTHER INFORMATION
 
Item 24.  FINANCIAL STATEMENTS AND EXHIBITS:
 
    (a) Financial Statements:
 
   
       Part A--Financial Highlights
    
 
   
       Part B--The following audited Financial Statements for the fiscal year
       ended September 30, 1997 and Report of Independent Accountants dated
       November 25, 1997 are incorporated by reference to the Statement of
       Additional Information from Form N-30D filed on December 1, 1997 with
       Accession Number 0000935069-97-000205.
    
 
   
         Statement of Net Assets
    
 
   
         Statement of Operations
    
 
   
         Statement of Changes in Net Assets
    
 
   
         Financial Highlights
    
 
   
         Notes to Financial Statements
    
 
    (b) Additional Exhibits:
 
   
<TABLE>
<S>        <C>
(1)        Agreement and Declaration of Trust dated October 17, 1986 as originally
             filed with Registrant's Registration Statement on Form N-1A (File No.
             33-9504) filed with the SEC on October 17, 1986 is filed herewith.
(1)(a)     Amendment to the Declaration of Trust dated December 23, 1988 is
             incorporated by reference to Post-Effective Amendment No. 27 to
             Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed
             with the SEC on December 19, 1997.
(2)        By-Laws filed with Registrant's Registration Statement on Form N-1A (File
             No. 33-9504) filed with the SEC on October 17, 1986.
(2)(a)     Amended and Restated By-Laws are filed herewith.
(3)        Not Applicable.
(4)        Not Applicable.
(5)(a)     Investment Advisory Agreement between the Trust and SunBank, N.A. with
             respect to the Trust's Capital Appreciation Portfolio filed as Exhibit
             (5)(b) to Post-Effective Amendment No. 4 to Registrant's Registration
             Statement on Form N-1A (File No. 33-9504) filed with the SEC on November
             25, 1987.
(5)(b)     Investment Advisory Agreement between the Trust and The Bank of California
             with respect to the Trust's Equity Income Portfolio filed as Exhibit
             (5)(c) to Post-Effective Amendment No. 4 to Registrant's Registration
             Statement on Form N-1A (File No. 33-9504) filed with the SEC on November
             25, 1987.
(5)(c)     Investment Advisory Agreement between the Trust and Merus Capital
             Management, Inc. with respect to the Trust's Equity Income Portfolio filed
             as Exhibit (5)(d) to Post-Effective Amendment No. 4 to Registrant's
             Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC
             on November 25, 1987.
(5)(d)     Investment Advisory Agreement between the Trust and Boatmen's Trust Company
             with respect to the Trust's Bond Portfolio filed as Exhibit (5)(e) to
             Post-Effective Amendment No. 5 to Registrant's Registration Statement on
             Form N-1A (File No. 33-9504) filed with the SEC on November 30, 1988.
(5)(e)     Investment Advisory Agreement between the Trust and Bank One, Indianapolis,
             N.A. with respect to the Trust's Limited Volatility Bond Portfolio filed
             as Exhibit (5)(f) to Post-Effective Amendment No. 6 to Registrant's
             Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC
             on May 4, 1989.
</TABLE>
    
<PAGE>
   
<TABLE>
<S>        <C>
(5)(f)     Investment Advisory Agreement between the Trust and Nicholas-Applegate
             Capital Management with respect to the Trust's Mid-Cap Growth Portfolio
             filed as Exhibit (5)(h) to Post-Effective Amendment No. 12 to Registrant's
             Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC
             on September 15, 1992.
(5)(g)     Investment Sub-Advisory Agreement between the SEI Investments Management
             Corporation (the "Adviser") and Investment Advisers, Inc. with respect to
             the Trust's Small Cap Growth Portfolio incorporated by reference as
             Exhibit (5)(i) to Post-Effective Amendment No. 25 to Registrant's
             Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC
             on November 30, 1995.
(5)(h)     Investment Sub-Advisory Agreement between the Adviser and Nicholas-Applegate
             Capital Management with respect to the Trust's Small Cap Growth Portfolio
             incorporated by reference as Exhibit (5)(j) to Post-Effective Amendment
             No. 25 to Registrant's Registration Statement on Form N-1A (File No.
             33-9504) filed with the SEC on November 30, 1995.
(5)(i)     Investment Advisory Agreement between the Adviser and Pilgrim Baxter &
             Associates with respect to the Trust's Small Cap Growth Portfolio
             incorporated by reference as Exhibit (5)(k) to Post-Effective Amendment
             No. 25 to Registrant's Registration Statement on Form N-1A (File No.
             33-9504) filed with the SEC on November 30, 1995.
(5)(j)     Investment Advisory Agreement between the Trust and Duff & Phelps Investment
             Management Co. with respect to the Trust's Value Portfolio filed as
             Exhibit (5)(l) to Post-Effective Amendment No. 17 to Registrant's
             Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC
             on June 21, 1993.
(5)(k)     Investment Advisory Agreement between the Trust and E.I.I. Realty
             Securities, Inc. with respect to the Trust's Real Estate Securities
             Portfolio incorporated by reference as Exhibit (5)(n) to Post-Effective
             Amendment No. 25 to Registrant's Registration Statement on Form N-1A (File
             No. 33-9504) filed with the SEC on November 30, 1995.
(5)(l)     Investment Advisory Agreement between the Trust and Western Asset Management
             with respect to the Trust's Intermediate Bond Portfolio filed as Exhibit
             (5)(o) to Post-Effective Amendment No. 21 to Registrant's Registration
             Statement on Form N-1A (File No. 33-9504) filed with the SEC on November
             29, 1994.
(5)(m)     Investment Advisory Agreement between the Trust and Mellon Equity
             Associates, LLP with respect to the Trust's Large Cap Value Portfolio as
             originally filed as Exhibit (5)(p) to Post-Effective Amendment No. 21 to
             Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed
             with the SEC on November 29, 1994 is filed herewith.
(5)(n)     Investment Sub-Advisory Agreement between the Adviser and LSV Asset
             Management with respect to the Trust's Large Cap Value Portfolio
             incorporated by reference as Exhibit (5)(q) to Post-Effective Amendment
             No. 25 to Registrant's Registration Statement on Form N-1A (File No.
             33-9504) filed with the SEC on November 30, 1995.
(5)(o)     Investment Sub-Advisory Agreement between the Adviser and Alliance Capital
             Management L.P. with respect to the Trust's Large Cap Growth Portfolio
             incorporated by reference as Exhibit (5)(r) to Post-Effective Amendment
             No. 25 to Registrant's Registration Statement on Form N-1A (File No.
             33-9504) filed with the SEC on November 30, 1995.
</TABLE>
    
 
                                       2
<PAGE>
   
<TABLE>
<S>        <C>
(5)(p)     Investment Sub-Advisory Agreement between the Adviser and IDS Advisory
             Group, Inc. with respect to the Trust's Large Cap Growth Portfolio
             incorporated by reference as Exhibit (5)(s) to Post-Effective Amendment
             No. 25 to Registrant's Registration Statement on Form N-1A (File No.
             33-9504) filed with the SEC on November 30, 1995.
(5)(q)     Investment Sub-Advisory Agreement between the Adviser and 1838 Investment
             Advisors, L.P. with respect to the Trust's Small Cap Value Portfolio
             incorporated by reference as Exhibit (5)(t) to Post-Effective Amendment
             No. 25 to Registrant's Registration Statement on Form N-1A (File No.
             33-9504) filed with the SEC on November 30, 1995.
(5)(r)     Investment Sub-Advisory Agreement between the Adviser and Martingale Asset
             Management with respect to the Trust's Mid-Cap Portfolio incorporated by
             reference as Exhibit (5)(u) to Post-Effective Amendment No. 25 to
             Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed
             with the SEC on November 30, 1995.
(5)(s)     Form of Investment Sub-Advisory Agreement between the Adviser and BlackRock
             Financial Management, Inc. with respect to the Trust's Core Fixed Income
             Portfolio incorporated by reference as Exhibit (5)(v) to Post-Effective
             Amendment No. 25 to Registrant's Registration Statement on Form N-1A (File
             No. 33-9504) filed with the SEC on November 30, 1995.
(5)(t)     Investment Sub-Advisory Agreement between the Adviser and Firstar Investment
             Research & Management Company with respect to the Trust's Core Fixed
             Income Portfolio incorporated by reference as Exhibit (5)(x) to
             Post-Effective Amendment No. 25 to Registrant's Registration Statement on
             Form N-1A (File No. 33-9504) filed with the SEC on November 30, 1995.
(5)(u)     Investment Sub-Advisory Agreement between the Adviser and BEA Associates
             with respect to the Trust's High Yield Bond Portfolio incorporated by
             reference as Exhibit (5)(y) to Post-Effective Amendment No. 25 to
             Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed
             with the SEC on November 30, 1995.
(5)(v)     Investment Sub-Advisory Agreement between the Adviser and Boston Partners
             Asset Management, L.P. with respect to the Trust's Small Cap Value
             Portfolio incorporated by reference as Exhibit (5)(z) to Post-Effective
             Amendment No. 25 to Registrant's Registration Statement on Form N-1A (File
             No. 33-9504) filed with the SEC on November 30, 1995.
(5)(w)     Investment Sub-Advisory Agreement between the Adviser and Apodaca-Johnston
             Capital Management, Inc. with respect to the Trust's Small Cap Growth
             Portfolio incorporated by reference as Exhibit (5)(aa) to Post-Effective
             Amendment No. 25 to Registrant's Registration Statement on Form N-1A (File
             No. 33-9504) filed with the SEC on November 30, 1995.
(5)(x)     Investment Sub-Advisory Agreement between the Adviser and Wall Street
             Associates with respect to the Trust's Small Cap Growth Portfolio
             incorporated by reference as Exhibit (5)(bb) to Post-Effective Amendment
             No. 25 to Registrant's Registration Statement on Form N-1A (File No.
             33-9504) filed with the SEC on November 30, 1995.
(5)(y)     Investment Sub-Advisory Agreement between the Adviser and First of America
             Corporation dated June 14, 1996 with respect to the Trust's Small Cap
             Growth Portfolio is incorporated by reference to Post-Effective Amendment
             No. 26 to Registrant's Registration Statement on Form N-1A (File No.
             33-9504) filed with the SEC on January 28, 1997.
</TABLE>
    
 
                                       3
<PAGE>
   
<TABLE>
<S>        <C>
(5)(z)     Investment Sub-Advisory Agreement between the Adviser and Furman Selz
             Capital Management LLC with respect to the Trust's Small Cap Growth
             Portfolio as previously filed with Post-Effective Amendment No. 26 to
             Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed
             with the SEC on January 28, 1997 is filed herewith.
(5)(aa)    Investment Sub-Advisory Agreement between the Adviser and Provident
             Investment Counsel, Inc. with respect to the Trust's Large Cap Growth
             Portfolio as previously filed with Post-Effective Amendment No. 26 to
             Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed
             with the SEC on January 28, 1997 is filed herewith.
(5)(bb)    Investment Sub-Advisory Agreement between the Adviser and Boatmen's Trust
             Company dated December 16, 1996 with respect to the Trust's Bond Portfolio
             is incorporated by reference to Post-Effective Amendment No. 26 to
             Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed
             with the SEC on January 28, 1997.
(5)(cc)    Investment Advisory Agreement between the Trust and the Adviser dated
             December 16, 1994 is incorporated by reference to Post-Effective Amendment
             No. 26 to Registrant's Registration Statement on Form N-1A (File No.
             33-9504) filed with the SEC on January 28, 1997.
(5)(dd)    Investment Sub-Advisory Agreement between the Adviser and Western Asset
             Management Company dated November 13, 1995 is filed herewith.
(5)(ee)    Investment Sub-Advisory Agreement between the Adviser and Sanford C.
             Bernstein Co., Inc. dated December 15, 1997 is filed herewith.
(5)(ff)    Investment Sub-Advisory Agreement between the Adviser and Pacific Alliance
             Capital Management (formerly, Merus-UCA Capital Management) dated April 1,
             1996 is filed herewith.
(5)(gg)    Investment Sub-Advisory Agreement between the Advisor and STI Capital
             Management, N.A. (formerly "Sun Bank Capital Management, N.A.") dated July
             10, 1995 is filed herewith.
(6)        Distribution Agreement between the Trust and SEI Investments Distribution
             Co. as originally filed with Registrant's Registration Statement on Form
             N-1A (File No. 33-9504) filed with the SEC on October 17, 1986 is filed
             herewith.
(7)        Not Applicable.
(8)(a)     Custodian Agreement between the Trust and CoreStates Bank, N.A. (formerly
             Philadelphia National Bank) as originally filed with Pre-Effective
             Amendment No. 1 to Registrant's Registration Statement on Form N-1A (File
             No. 33-9504) filed with the SEC on January 29, 1987 is filed herewith.
(8)(b)     Custodian Agreement between the Trust and United States National Bank of
             Oregon filed with Pre-Effective Amendment No. 1 to Registrant's
             Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC
             on January 29, 1987.
(9)(a)     Management Agreement between the Trust and SEI Investments Management
             Corporation as originally filed with Exhibit (5)(a) to Registrant's
             Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC
             on October 17, 1986 is filed herewith.
(9)(b)     Schedule C to Management Agreement between the Trust and SEI Investments
             Management Corporation adding the Mid-Cap Growth Portfolio as originally
             filed as Exhibit (5)(j) to Post-Effective Amendment No. 12 to Registrant's
             Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC
             on September 15, 1992 is filed herewith.
</TABLE>
    
 
                                       4
<PAGE>
   
<TABLE>
<S>        <C>
(9)(c)     Schedule D to Management Agreement between the Trust and SEI Investments
             Management Corporation adding the Real Estate Securities Portfolio filed
             as Exhibit (5)(m) to Post-Effective Amendment No. 17 to Registrant's
             Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC
             on June 21, 1993.
(9)(d)     Consent to Assignment and Assumption between SIMC and SEI Fund Management
             dated August 21, 1996 is incorporated by reference to Post-Effective
             Amendment No. 26 to Registrant's Registration Statement on Form N-1A (File
             No. 33-9504) filed with the SEC on January 28, 1997.
(10)       Opinion and Consent of Counsel as originally filed with Pre-Effective
             Amendment No. 1 to Registrant's Registration Statement on Form N-1A (File
             No. 33-9504) filed with the SEC on January 29, 1987 is filed herewith.
(11)       Consent of Independent Accountants is filed herewith.
(12)       Not Applicable.
(13)       Not Applicable.
(14)       Not Applicable.
(15)(a)    Distribution Plan pursuant to Rule 12b-1 (Class A) filed with Registrant's
             Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC
             on October 17, 1986.
(15)(b)    Distribution Plan pursuant to Rule 12b-1 (Class B) filed with Post-Effective
             Amendment No. 17 to Registrant's Registration Statement on Form N-1A (File
             No. 33-9504) filed with the SEC on June 21, 1993.
(15)(c)    Distribution Plan pursuant to Rule 12b-1 (ProVantage Class) filed with
             Post-Effective Amendment No. 19 to Registrant's Registration Statement on
             Form N-1A (File No. 33-9504) filed with the SEC on December 2, 1993.
(15)(d)    Amended and Restated Distribution Plan is incorporated by reference to Post-
             Effective Amendment No. 26 to Registrant's Registration Statement on Form
             N-1A (File No. 33-9504) filed with the SEC on January 28, 1997.
(15)(e)    Shareholder Service Plan and Agreement with respect to the Class A shares is
             incorporated by reference to Post-Effective Amendment No. 26 to
             Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed
             with the SEC on January 28, 1997.
(16)       Performance Quotation Computation as originally filed with Post-Effective
             Amendment No. 19 to Registrant's Registration Statement on Form N-1A (File
             No. 33-9504) filed with the SEC on December 2, 1993 is filed herewith.
(17)       Financial Data Schedules are filed herewith.
(18)(a)    Rule 18f-3 Multiple Class Plan incorporated by reference as Exhibit (15)(d)
             to Post-Effective Amendment No. 23 to Registrant's Registration Statement
             on Form N-1A (File No. 33-9504) filed with the SEC on June 19, 1995.
(18)(b)    Amendment No. 1 to Rule 18f-3 Plan relating to Class A and Class D shares is
             incorporated by reference to Post-Effective Amendment No. 26 to
             Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed
             with the SEC on January 28, 1997.
(24)       Powers of Attorney for Robert A. Nesher, William M. Doran, George J.
             Sullivan, Jr., F. Wendell Gooch, Stephen G. Meyer, James M. Storey, David
             G. Lee and Frank E. Morris are incorporated by reference to Post-Effective
             Amendment No. 26 to Registrant's Registration Statement on Form N-1A (File
             No. 33-9504) filed with the SEC on January 28, 1997.
</TABLE>
    
 
Item 25.  PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH REGISTRANT:
 
    None.
 
                                       5
<PAGE>
Item 26.  NUMBER OF HOLDERS OF SECURITIES:
 
   
    As of January 1, 1998:
    
 
   
<TABLE>
<CAPTION>
                                                                                      NUMBER OF
                                                                                       RECORD
TITLE OF CLASS                                                                         HOLDERS
- ----------------------------------------------------------------------------------  -------------
<S>                                                                                 <C>
Shares of beneficial interest, without par value--
Tax-Managed Large Cap Fund
  Class A.........................................................................            0
Large Cap Value Portfolio
  Class A.........................................................................          327
Large Cap Growth Portfolio
  Class A.........................................................................          278
Small Cap Value Portfolio
  Class A.........................................................................          417
Small Cap Growth Portfolio
  Class A.........................................................................          454
  Class D.........................................................................            0
Mid-Cap Portfolio
  Class A.........................................................................          106
Capital Appreciation Portfolio
  Class A.........................................................................          212
Equity Income Portfolio
  Class A.........................................................................          198
Balanced Portfolio
  Class A.........................................................................           42
Core Fixed Income Portfolio
  Class A.........................................................................          217
High Yield Bond Portfolio
  Class A.........................................................................          111
</TABLE>
    
 
Item 27.  INDEMNIFICATION:
 
    Article VIII of the Agreement and Declaration of Trust filed as Exhibit 1 to
the Registration Statement is incorporated by reference. Insofar as
indemnification for liabilities arising under the Securities Act of 1933 may be
permitted to trustees, directors, officers and controlling persons of the
Registrant by the Registrant pursuant to the Declaration of Trust or otherwise,
the Registrant is aware that in the opinion of the Securities and Exchange
Commission, such indemnification is against public policy as expressed in the
Act and, therefore, is unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by trustees, directors, officers or
controlling persons of the Registrant in connection with the successful defense
of any act, suit or proceeding) is asserted by such trustees, directors,
officers or controlling persons in connection with the shares being registered,
the Registrant will, unless in the opinion of its counsel the matter has been
settled by controlling precedent, submit to a court of appropriate jurisdiction
the question whether such indemnification by it is against public policy as
expressed in the Act and will be governed by the final adjudication of such
issues.
 
Item 28.  BUSINESS AND OTHER CONNECTIONS OF INVESTMENT ADVISER:
 
    Other business, profession, vocation, or employment of a substantial nature
in which each director or principal officer of each Investment Adviser is or has
been, at any time during the last two fiscal years,
 
                                       6
<PAGE>
engaged for his own account or in the capacity of director, officer, employee,
partner or trustee are as follows:
 
1838 INVESTMENT ADVISORS, L.P.
 
    1838 Investment Advisors, L.P., is an investment sub-adviser for the
Registrant's Small Cap Value Portfolio. The principal address of 1838 Investment
Advisors, L.P., is 100 Matsonford Road, Radnor, Pennsylvania 19087. 1838
Investment Advisors, L.P., is an investment adviser registered under the
Advisers Act.
 
    The list required by this Item 28 of officers and directors of 1838
Investment Advisors, L.P., together with information as to any other business
profession, vocation, or employment of a substantial nature engaged in by such
officers and directors during the past two years is incorporated by reference to
Schedules A and D of Form ADV filed by 1838 Investment Advisors, L.P., pursuant
to the Advisers Act (SEC File No. 801-33025).
 
ALLIANCE CAPITAL MANAGEMENT L.P.
 
    Alliance Capital Management L.P. is an investment sub-adviser for the
Registrant's Large Cap Growth Portfolio and the Tax-Managed Large Cap Funds. The
principal address of Alliance Capital Management L.P. is 1345 Avenue of the
Americas, New York, New York 10105. Alliance Capital Management L.P. is an
investment adviser registered under the Advisers Act.
 
    The list required by this Item 28 of officers and directors of Alliance
Capital Management L.P., together with information as to any other business
profession, vocation, or employment of a substantial nature engaged in by such
officers and directors during the past two years is incorporated by reference to
Schedules A and D of Form ADV filed by Alliance Capital Management L.P. pursuant
to the Advisers Act (SEC File No. 801-32361).
 
BEA ASSOCIATES
 
    BEA Associates is an investment sub-adviser for the Registrant's High Yield
Bond Portfolio. The principal address of BEA Associates is One Citicorp Center,
153 East 53rd Street, New York, New York 10022. BEA Associates is an investment
adviser registered under the Advisers Act.
 
    The list required by this Item 28 of officers and directors of BEA
Associates, together with information as to any other business profession,
vocation, or employment of a substantial nature engaged in by such officers and
directors during the past two years is incorporated by reference to Schedules A
and D of Form ADV filed by BEA Associates pursuant to the Advisers Act (SEC File
No. 801-37170).
 
BLACKROCK FINANCIAL MANAGEMENT, INC.
 
    BlackRock Financial Management, Inc. is an investment sub-adviser for the
Registrant's Core Fixed Income Portfolio. The principal address of BlackRock
Financial Management, Inc. is 345 Park Avenue, 30th Floor, New York, New York
10154. BlackRock Financial Management, Inc. is an investment adviser registered
under the Advisers Act.
 
    The list required by this Item 28 of officers and directors of BlackRock
Financial Management, Inc., together with information as to any other business
profession, vocation, or employment of a substantial nature engaged in by such
officers and directors during the past two years is incorporated by reference to
Schedules A and D of Form ADV filed by BlackRock Financial Management, Inc.
pursuant to the Advisers Act (SEC File No. 801-48433).
 
                                       7
<PAGE>
STI CAPITAL MANAGEMENT, N.A.
 
   
    STI Capital Management, N.A. is an investment sub-adviser for the Capital
Appreciation and Balanced Portfolios. The principal business address of STI
Capital Management, N.A. is P.O. Box 3786, Orlando, FL 32802.
    
 
   
<TABLE>
<CAPTION>
         NAME AND POSITION                                                            CONNECTION WITH
      WITH INVESTMENT ADVISER                NAME OF OTHER COMPANY                     OTHER COMPANY
- ------------------------------------  ------------------------------------  ------------------------------------
<S>                                   <C>                                   <C>
Anthony R. Gray                                        --                                    --
Chairman & Chief Investment Officer
 
James R. Wood                                          --                                    --
President
 
E. Jenner Wood III                                     --                                    --
Director
 
Hunting F. Deutsch                                     --                                    --
Director
 
Jonathan D. Rich                                       --                                    --
Director
 
Elliott A. Perny                                       --                                    --
Executive Vice President
  Chief Portfolio Manager
 
Larry M. Cole                                          --                                    --
Senior Vice President
 
Ronald Schwartz                                        --                                    --
Senior Vice President
 
L. Earl Denney                                         --                                    --
Executive Vice President
 
Stuart F. Van Arsdale                                  --                                    --
Senior Vice President
 
Christopher A. Jones                                   --                                    --
Senior Vice President
 
Mills A. Riddick                                       --                                    --
Senior Vice President
 
David E. West                                          --                                    --
Vice President
</TABLE>
    
 
                                       8
<PAGE>
PACIFIC ALLIANCE CAPITAL MANAGEMENT
 
    Pacific Alliance Capital Management, a division of Union Bank of California,
N.A., is an investment sub-adviser for the Equity Income Portfolio. The
principal address of Pacific Alliance Capital Management is 475 Sansome Street,
San Francisco, CA 94111.
 
<TABLE>
<CAPTION>
         NAME AND POSITION                                                            CONNECTION WITH
      WITH INVESTMENT ADVISER                NAME OF OTHER COMPANY                     OTHER COMPANY
- ------------------------------------  ------------------------------------  ------------------------------------
<S>                                   <C>                                   <C>
Stanley F. Farrar                     Sullivan & Cromwell                   Partner
Director of Adviser
 
Raymond E. Miles                      Univ. of California School of Bus.    Dean
Director of Adviser                     Admin.
 
Alexander D. Calhoun                  Graham & James                        Partner
Director
 
Richard D. Farman                     Pacific Enterprises                   President, COO & Director
Director
 
Herman E. Gallegos                    Independent Management Consultant                      --
Director
 
Jack L. Hancock                       Retired                                                --
Director
 
Richard C. Hartnack                   Retired                                                --
Vice Chairman
 
Harry W. Lou                          Judicial Arbitration and Mediation    Mediator/Arbitrator
Director                                Services, Inc.
 
J. Fernado Niebla                     Infotec Development, Inc.             Chairman & CEO
Director of Adviser
 
Hiroo Nozawa                          Bank of Tokyo, Mitsubishi             Director
Director of Adviser
Chairman, President & CEO
 
Carl W. Robertson                     Warland Investments Company           Managing Director
Director of Adviser
 
Paul W. Steere                        Bogle & Gates                         Partner
Director of Adviser
 
Charles R. Scott                      Leadership Centers USA                Chairman & CEO
Director of Adviser
 
Henry T. Swigert                      ESCO Corporation                      Chairman
Director of Adviser
 
Minoru Noda                           UnionBanCal Corporation               Vice Chairman
Director of Adviser,
Vice Chairman Credit & Finance
</TABLE>
 
                                       9
<PAGE>
<TABLE>
<CAPTION>
         NAME AND POSITION                                                            CONNECTION WITH
      WITH INVESTMENT ADVISER                NAME OF OTHER COMPANY                     OTHER COMPANY
- ------------------------------------  ------------------------------------  ------------------------------------
<S>                                   <C>                                   <C>
Roy A. Henderson                      UnionBanCal Corporation               Vice Chairman
Director of Adviser,
Chairman, Regional Banking
 
Mary S. Metz                          University Extension, University of   Dean
Director                                California, Berkley
 
Sidney R. Peterson                    Consultant                                             --
Director
 
Robert M. Walker                      Retired                                                --
Vice Chairman
 
Blenda J. Wilson                      California State University,          President
Director                                Northridge
 
Kanetaka Yoshida                      Bank of Tokyo, Mitsubishi Limited     Director
President, C.E.O. & Director
 
Luke Mazur                                             --                                    --
Senior Vice President & Manager
</TABLE>
 
AMERICAN EXPRESS ASSET MANAGEMENT GROUP INC.
 
    American Express Asset Management Group Inc. ("AEAMG") is a money manager
for the Registrant's Large Cap Growth Portfolio. The principal address of AEAMG
is IDS Tower 10, Minneapolis, Minnesota 55400-0010. AEAMG is an investment money
manager registered under the Advisers Act.
 
    The list required by this Item 28 of officers and directors of AEAMG,
together with information as to any business, profession, vocation or employment
of substantial nature engaged in by such officers and directors during the past
two years, is incorporated by reference to Schedules A and D of Form ADV filed
by AEAMG pursuant to the Advisers Act (SEC File No. 801-259743).
 
BOSTON PARTNERS ASSET MANAGEMENT, L.P.
 
    Boston Partners Asset Management, L.P., is an investment sub-adviser for the
Small Cap Value Portfolio. The principal address of Boston Partners Asset
Management, L.P., is One Financial Center, 43rd Floor, Boston, Massachusetts
02111. Boston Partners Asset Management, L.P., is an investment adviser
registered under the Advisers Act.
 
    The list required by this Item 28 of officers and directors of Boston
Partners Asset Management, L.P., together with information as to any other
business profession, vocation, or employment of a substantial nature engaged in
by such officers and directors during the past two years is incorporated by
reference to Schedules A and D of Form ADV filed by Boston Partners Asset
Management, L.P., pursuant to the Advisers Act (SEC File No. 801-49059).
 
FIRST OF AMERICA INVESTMENT CORPORATION
 
   
    First of America Investment Corporation ("First America") is an investment
sub-adviser for the Registrant's Small Cap Fund. The principal business address
of First America is 303 North Rose Street, Suite 500, Kalamazoo, Michigan 49007.
First America is an investment sub-adviser registered under the Advisers Act.
    
 
                                       10
<PAGE>
   
    The list required by this Item 28 of officers and directors of First
America, together with information as to any other business, profession,
vocation or employment of a substantial nature engaged in by such officers and
directors during the past two years, is incorporated by reference to Schedules A
and D of Form ADV filed by First of America pursuant to the Advisers Act (SEC
File No. 801-446).
    
 
FIRSTAR INVESTMENT RESEARCH & MANAGEMENT COMPANY
 
    Firstar Investment Research & Management Company is an investment
sub-adviser for the Core Fixed Income Portfolio. The principal address of
Firstar Investment Research & Management Company is 777 E. Wisconsin Avenue,
Suite 800, Milwaukee, Wisconsin 53202. Firstar Investment Research & Management
Company is an investment adviser registered under the Advisers Act.
 
    The list required by this Item 28 of officers and directors of Firstar
Investment Research & Management Company, together with information as to any
other business profession, vocation, or employment of a substantial nature
engaged in by such officers and directors during the past two years is
incorporated by reference to Schedules A and D of Form ADV filed by Firstar
Investment Research & Management Company pursuant to the Advisers Act (SEC File
No. 801-28084).
 
FURMAN SELZ CAPITAL MANAGEMENT LLC
 
    Furman Selz Capital Management LLC ("Furman Selz") is an investment
sub-adviser for the Registrant's Small Cap Fund. The principal business address
of Furman Selz is 230 Park Avenue, New York, NY 10169. Furman Selz is an
investment sub-adviser registered under the Advisers Act.
 
    The list required by this Item 28 of officers and directors of Furman Selz,
together with information as to any other business, profession, vocation or
employment of a substantial nature engaged in by such officers and directors
during the past two years, is incorporated by reference to Schedules A and D of
Form ADV filed by Furman Selz pursuant to the Advisers Act (SEC File No.
801-20737).
 
LSV ASSET MANAGEMENT
 
    LSV Asset Management is an investment sub-adviser for the Large Cap Value
and Small Cap Value Portfolios. The principal address of LSV Asset Management is
181 West Madison Street, Chicago, Illinois 60602. LSV Asset Management is an
investment adviser registered under the Advisers Act.
 
    The list required by this Item 28 of officers and directors of LSV Asset
Management, together with information as to any other business profession,
vocation, or employment of a substantial nature engaged in by such officers and
directors during the past two years is incorporated by reference to Schedules A
and D of Form ADV filed by LSV Asset Management pursuant to the Advisers Act
(SEC File No. 801-47689).
 
MARTINGALE ASSET MANAGEMENT, L.P.
 
    Martingale Asset Management, L.P. is the investment sub-adviser for the
Mid-Cap Portfolio. The principal address of Martingale Asset Management, L.P.,
is 222 Berkeley Street, Boston, Massachusettes 02116. Martingale Asset
Management, L.P., is an investment adviser registered under the Advisers Act.
 
    The list required by this Item 28 of officers and directors of Martingale
Asset Management, L.P., together with information as to any other business
profession, vocation, or employment of a substantial nature engaged in by such
officers and directors during the past two years is incorporated by reference to
Schedules A and D of Form ADV filed by Martingale Asset Management, L.P.,
pursuant to the Advisers Act (SEC File No. 801-30067).
 
   
MELLON EQUITY ASSOCIATES, LLP
    
 
   
    Mellon Equity Associates, LLP is an investment sub-adviser for the Large Cap
Value Portfolio and the Tax-Managed Large Cap Funds. The principal address of
Mellon Equity Associates is 500 Grant Street,
    
 
                                       11
<PAGE>
Suite 3700, Pittsburgh, Pennsylvania. Mellon Equity Associates is an investment
adviser registered under the Advisers Act.
 
    The list required by this Item 28 of officers and directors of Mellon Equity
Associates, together with information as to any other business profession,
vocation, or employment of a substantial nature engaged in by such officers and
directors during the past two years is incorporated by reference to Schedules A
and D of Form ADV filed by Mellon Equity Associates pursuant to the Advisers Act
(SEC File No. 801-28692).
 
   
NICHOLAS-APPLEGATE CAPITAL MANAGEMENT
    
 
   
    Nicholas-Applegate Capital Management ("Nicholas-Applegate"), is an
investment sub-adviser for the Small Cap Growth Portfolio. The principal address
of Nicholas-Applegate is 600 West Broadway, 29th Floor, San Diego, California
92101. Nicholas-Applegate is an investment adviser registered under the Advisers
Act.
    
 
   
    The list required by this Item 28 of officers and directors of
Nicholas-Applegate, together with information as to any other business
profession, vocation, or employment of a substantial nature engaged in by such
officers and directors during the past two years is incorporated by reference to
Schedules A and D of Form ADV filed by Nicholas-Applegate pursuant to the
Advisers Act (SEC File No. 801-21442).
    
 
PROVIDENT INVESTMENT COUNSEL, INC.
 
    Provident Investment Counsel, Inc. ("Provident"), is an investment
sub-adviser for the Registrant's Large Cap Portfolio. The principal business
address of Provident is 300 North Lake Avenue, Pasadena, CA 91101. Provident is
an investment sub-adviser registered under the Advisers Act.
 
    The list required by this Item 28 of officers and directors of Provident,
together with information as to any other business, profession, vocation or
employment of substantial nature engaged in by such officers and directors
during the past two years, is incorporated by reference to Schedules A and D of
Form ADV filed by Provident pursuant to the Adviser Act (SEC File No.
801-47993).
 
SANFORD C. BERNSTEIN & CO., INC.
 
    Sanford C. Bernstein & Co., Inc., is an investment sub-adviser for the
Tax-Managed Fund and Large Cap Value Portfolio. The principal address of Sanford
C. Bernstein & Co., Inc., is 767 Fifth Avenue, New York, New York 10153-0185.
Sanford C. Bernstein & Co., Inc., is an investment adviser registered under the
Advisers Act.
 
    The list required by this Item 28 of officers and directors of Sanford C.
Bernstein & Co., Inc., together with information as to any other business
profession, vocation or employment of a substantial nature engaged in by such
officers and directors during the past two years is incorporated by reference to
Schedules A and D of Form ADV filed by Sanford C. Bernstein & Co., Inc., to the
Advisers Act (SEC File No. 801-10488).
 
SEI INVESTMENTS MANAGEMENT CORPORATION
 
    SEI Investments Management Company ("SIMC") is an investment adviser for
each of the Portfolios. The principal address of SIMC is Oaks, Pennsylvania
19456. SIMC is an investment adviser registered under the Advisers Act.
 
    The list required by this Item 28 of officers and directors of SIMC,
together with information as to any other business profession, vocation, or
employment of a substantial nature engaged in by such officers and directors
during the past two years is incorporated by reference to Schedules A and D of
Form ADV filed by SIMC pursuant to the Advisers Act (SEC File No. 801-24593).
 
                                       12
<PAGE>
WALL STREET ASSOCIATES
 
    Wall Street Associates is an investment sub-adviser for the Small Cap Growth
Portfolio. The principal address of Wall Street Associates is 1200 Prospect
Street, Suite 100, La Jolla, California 92037. Wall Street Associates is an
investment adviser registered under the Advisers Act.
 
    The list required by this Item 28 of officers and directors of Wall Street
Associates, together with information as to any other business profession,
vocation, or employment of a substantial nature engaged in by such officers and
directors during the past two years is incorporated by reference to Schedules A
and D of Form ADV filed by Wall Street Associates pursuant to the Advisers Act
(SEC File No. 801-30019).
 
WESTERN ASSET MANAGEMENT COMPANY
 
    Western Asset Management Company is an investment sub-adviser for the Bond
and Core Fixed Income Portfolios. The principal address of Western Asset
Management Company is 117 East Colorado Boulevard, Pasadena, California 91105.
Western Asset Management Company is an investment adviser registered under the
Advisers Act.
 
    The list required by this Item 28 of officers and directors of Western Asset
Management Company, together with information as to any other business
profession, vocation, or employment of a substantial nature engaged in by such
officers and directors during the past two years is incorporated by reference to
Schedules A and D of Form ADV filed by Western Asset Management Company pursuant
to the Advisers Act (SEC File No. 801-08162).
 
    Item 29.  PRINCIPAL UNDERWRITERS:
 
    (a) Furnish the name of each investment company (other than the Registrant)
for which each principal underwriter currently distributing the securities of
the Registrant also acts as a principal underwriter, distributor or investment
adviser.
 
    Registrant's distributor, SEI Investments Distribution Co. (the
"Distributor"), acts as distributor for:
 
<TABLE>
<S>                                                       <C>
SEI Daily Income Trust                                    July 15, 1982
SEI Liquid Asset Trust                                    November 29, 1982
SEI Tax Exempt Trust                                      December 3, 1982
SEI Index Funds                                           July 10, 1985
SEI International Trust                                   August 30, 1988
The Advisors' Inner Circle Fund                           November 14, 1991
The Pillar Funds                                          February 28, 1992
CUFUND                                                    May 1, 1992
STI Classic Funds                                         May 29, 1992
CoreFunds, Inc.                                           October 30, 1992
First American Funds, Inc.                                November 1, 1992
First American Investment Funds, Inc.                     November 1, 1992
The Arbor Fund                                            January 28, 1993
Boston 1784 Funds-Registered Trademark-                   June 1, 1993
The PBHG Funds, Inc.                                      July 16, 1993
Marquis Funds-Registered Trademark-                       August 17, 1993
Morgan Grenfell Investment Trust                          January 3, 1994
The Achievement Funds Trust                               December 27, 1994
Bishop Street Funds                                       January 27, 1995
CrestFunds, Inc                                           March 1, 1995
STI Classic Variable Trust                                August 18, 1995
ARK Funds                                                 November 1, 1995
Monitor Funds                                             January 11, 1996
</TABLE>
 
                                       13
<PAGE>
<TABLE>
<S>                                                       <C>
FMB Funds, Inc.                                           March 1, 1996
SEI Asset Allocation Trust                                April 1, 1996
TIP Funds                                                 April 28, 1996
SEI Institutional Investments Trust                       June 14, 1996
First American Strategy Funds, Inc.                       October 1, 1996
HighMark Funds                                            February 15, 1997
Armada Funds                                              March 8, 1997
PBHG Insurance Series Fund, Inc.                          April 1, 1997
The Expedition Funds                                      June 9, 1997
</TABLE>
 
    The Distributor provides numerous financial services to investment managers,
    pension plan sponsors, and bank trust departments. These services include
    portfolio evaluation, performance measurement and consulting services
    ("Funds Evaluation") and automated execution, clearing and settlement of
    securities transactions ("MarketLink").
 
    (b) Furnish the Information required by the following table with respect to
each director, officer or partner of each principal underwriter named in the
answer to Item 21 of Part B. Unless otherwise noted, the business address of
each director or officer is Oaks, PA 19456.
 
   
<TABLE>
<CAPTION>
                                                  POSITION AND OFFICE                     POSITIONS AND OFFICES
             NAME                                   WITH UNDERWRITER                         WITH REGISTRANT
- -------------------------------  ------------------------------------------------------  ------------------------
<S>                              <C>                                                     <C>
Alfred P. West, Jr.              Director, Chairman & Chief Executive Officer                       --
 
Henry H. Greer                   Director, President & Chief Operating Officer                      --
 
Carmen V. Romeo                  Director, Executive Vice President &                               --
                                   President-Investment Advisory Group
 
Gilbert L. Beebower              Executive Vice President                                           --
 
Richard B. Lieb                  Executive Vice President, President-Investment                     --
                                   Services Division
 
Dennis J. McGonigle              Executive Vice President                                           --
 
Leo J. Dolan, Jr.                Senior Vice President                                              --
 
Carl A. Guarino                  Senior Vice President                                              --
 
Larry Hutchison                  Senior Vice President                                              --
 
David G. Lee                     Senior Vice President                                   President and Chief
                                                                                           Executive Officer
 
Jack May                         Senior Vice President                                              --
 
A. Keith McDowell                Senior Vice President                                              --
 
Hartland J. McKeown              Senior Vice President                                              --
 
Barbara J. Moore                 Senior Vice President                                              --
 
Kevin P. Robins                  Senior Vice President, General Counsel & Secretary      Vice President and
                                                                                           Assistant Secretary
 
Robert Wagner                    Senior Vice President                                              --
 
Patrick K. Walsh                 Senior Vice President                                              --
 
Robert Aller                     Vice President                                                     --
 
Gordon W. Carpenter              Vice President                                                     --
 
Todd Cipperman                   Vice President & Assistant Secretary                    Vice President and
                                                                                           Assistant Secretary
</TABLE>
    
 
                                       14
<PAGE>
   
<TABLE>
<CAPTION>
                                                  POSITION AND OFFICE                     POSITIONS AND OFFICES
             NAME                                   WITH UNDERWRITER                         WITH REGISTRANT
- -------------------------------  ------------------------------------------------------  ------------------------
<S>                              <C>                                                     <C>
Robert Crudup                    Vice President & Managing Director                                 --
 
Barbara Doyne                    Vice President                                                     --
 
Jeff Drennen                     Vice President                                                     --
 
Vic Galef                        Vice President & Managing Director                                 --
 
Kathy Heilig                     Vice President & Treasurer                                         --
 
Michael Kantor                   Vice President                                                     --
 
Samuel King                      Vice President                                                     --
 
Kim Kirk                         Vice President & Managing Director                                 --
 
John Krzeminski                  Vice President & Managing Director                                 --
 
Carolyn McLaurin                 Vice President & Managing Director                                 --
 
W. Kelso Morrill                 Vice President                                                     --
 
Joanne Nelson                    Vice President                                                     --
 
Sandra K. Orlow                  Vice President & Assistant Secretary                    Vice President and
                                                                                           Assistant Secretary
 
Cynthia M. Parrish               Vice President & Assistant Secretary                               --
 
Donald Pepin                     Vice President & Managing Director                                 --
 
Kim Rainey                       Vice President                                                     --
 
Mark Samuels                     Vice President & Managing Director                                 --
 
Steve Smith                      Vice President                                                     --
 
Daniel Spaventa                  Vice President                                                     --
 
Kathryn L. Stanton               Vice President & Assistant Secretary                    Vice President and
                                                                                           Assistant Secretary
 
Wayne M. Withrow                 Vice President & Managing Director                                 --
 
James Dougherty                  Director of Brokerage Services                                     --
</TABLE>
    
 
ITEM 30. LOCATION OF ACCOUNTS AND RECORDS:
 
    Books or other documents required to be maintained by Section 31(a) of the
Investment Company Act of 1940, and the rules promulgated thereunder, are
maintained as follows:
 
        (a) With respect to Rules 31a-1(a); 31a-1(b)(1); (2)(a) and (b); (3);
    (6); (8); (12); and 31a-1(d), the required books and records are maintained
    at the offices of Registrant's Custodian:
 
           CoreStates Bank, N.A.
           Broad and Chestnut Streets
           P.O. Box 7618
           Philadelphia, PA 19101
 
       (b)/(c) With respect to Rules 31a-1(a); 31a-1(b)(1),(4);
       (2)(C) and (D); (4); (5);
 
    (6); (8); (9); (10); (11); and 31a-1(f), the required books and records are
    maintained at the offices of Registrant's Manager:
 
           SEI Fund Management
           Oaks, PA 19456
 
                                       15
<PAGE>
        (c) With respect to Rules 31a-1(b)(5),(6),(9) and (10) and 31a-1(f), the
    required books and records are maintained at the principal offices of the
    Registrant's Advisers:
 
           1838 Investment Advisors, L.P.
           100 Matsonford Road
           Radnor, PA 19087
 
           Alliance Capital Management L.P.
           1345 Avenue of the Americas
           New York, NY 10105
 
           American Express Asset Management Group Inc.
           IDS Tower 10
           Minneapolis, Minnesota 55400-0010
 
           BEA Associates
           One Citicorp Center
           153 East 53rd Street
           New York, NY 10022
 
           BlackRock Financial Management, Inc.
           345 Park Avenue
           New York, NY 10154
 
           Boston Partners Asset Management, L.P.
           One Financial Center, 43rd Floor
           Boston, MA 02111
 
           First of America Investment Corporation
           303 North Rose Street
           Suite 500
           Kalamazoo, MI 49007
 
           Firstar Investment Research & Management Company
           777 East Wisconsin Avenue
           Suite 800
           Milwaukee, WI 53202
 
           Furman Selz Capital Management LLC
           230 Park Avenue
           New York, NY 10169
 
           LSV Asset Management
           181 W. Madison Avenue
           Chicago, IL 60602
 
           Martingale Asset Management, L.P.
           222 Berkeley Street
           Boston, MA 02210
 
   
           Mellon Equity Associates, LLP
           500 Grant Street
           Suite 3700
           Pittsburgh, PA 15258
    
 
   
           Nicholas-Applegate Capital Management, Inc.
           600 West Broadway, 29th Floor
           San Diego, CA 92101
    
 
                                       16
<PAGE>
           Pacific Alliance Capital Management
           475 Sansome Street
           San Francisco, CA 94104
 
           Provident Investment Counsel, Inc.
           300 North Lake Avenue
           Pasadena, CA 91101
 
           Sanford C. Bernstein & Co., Inc.
           767 Fifth Avenue
           New York, NY 10153-0185
 
           SEI Investments Management Corporation
           Oaks, PA 19456
 
           STI Capital Management, N.A.
           P.O. Box 3808
           Orlando, FL 32802
 
           Wall Street Associates
           1200 Prospect Street
           Suite 100
           La Jolla, CA 92037
 
           Western Asset Management Company
           117 East Colorado Boulevard
           Pasadena, CA 91105
 
ITEM 31. MANAGEMENT SERVICES:
 
    None.
 
ITEM 32. UNDERTAKINGS:
 
    Registrant hereby undertakes that whenever Shareholders meeting the
requirements of Section 16(c) of the Investment Company Act of 1940 inform the
Board of Trustees of their desire to communicate with Shareholders of the Trust,
the Trustees will inform such Shareholders as to the approximate number of
Shareholders of record and the approximate cost of mailing or afford said
Shareholders access to a list of Shareholders.
 
    Registrant undertakes to hold a meeting of Shareholders for the purpose of
voting upon the question of removal of a Trustee(s) when requested in writing to
do so by the holders of at least 10% of Registrant's outstanding shares and in
connection with such meetings to comply with the provisions of Section 16(c) of
the Investment Company Act of 1940 relating to Shareholder communications.
 
    Registrant undertakes to furnish each person to whom a prospectus for any
series of the Registrant is delivered with a copy of the Registrant's latest
annual report to shareholders for such series, when such annual report is issued
containing information called for by Item 5A of Form N-1A, upon request and
without charge.
 
   
    Registrant hereby undertakes to file a post-effective amendment, using
financial statements with respect to the Tax-Managed Large Cap Fund which need
not be certified, within four to six months from the effective date of
Post-Effective Amendment No. 27.
    
 
                                     NOTICE
 
    A copy of the Agreement and Declaration of Trust of SEI Institutional
Managed Trust is on file with the Secretary of State of The Commonwealth of
Massachusetts and notice is hereby given that this Registration Statement has
been executed on behalf of the Trust by an officer of the Trust as an officer
and by its Trustees as trustees and not individually and the obligations of or
arising out of this Registration Statement are not binding upon any of the
Trustees, officers, or Shareholders individually but are binding only upon the
assets and property of the Trust.
 
                                       17
<PAGE>
   
                                   SIGNATURES
    
 
   
    Pursuant to the requirements of the Securities Act of 1933, as amended, and
the Investment Company Act of 1940, as amended, the Registrant certifies that it
meets all of the requirements for effectiveness of this Registration Statement
pursuant to Rule 485(b) under the Securities Act of 1933 and has duly caused
this Post-Effective Amendment No. 28 to Registration Statement No. 33-9504 to be
signed on its behalf by the undersigned, thereunto duly authorized, in the City
of Wayne, Commonwealth of Pennsylvania on the 27th day of January, 1998.
    
 
   
                                SEI INSTITUTIONAL MANAGED TRUST
 
                                By:               /s/ David G. Lee
                                     -----------------------------------------
                                                    David G. Lee
                                                     PRESIDENT
 
    
 
   
    Pursuant to the requirements of the Securities Act of 1933, this Amendment
to the Registration Statement has been signed below by the following persons in
the capacity on the dates indicated.
    
 
   
              *
- ------------------------------  Trustee                      January 27, 1998
   George J. Sullivan, Jr.
              *
- ------------------------------  Trustee                      January 27, 1998
       William M. Doran
 
              *
- ------------------------------  Trustee                      January 27, 1998
       F. Wendell Gooch
 
              *
- ------------------------------  Trustee                      January 27, 1998
       Frank E. Morris
 
              *
- ------------------------------  Trustee                      January 27, 1998
       James M. Storey
 
              *
- ------------------------------  Trustee                      January 27, 1998
       Robert A. Nesher
 
      /s/ Mark E. Nagle
- ------------------------------  Controller & Chief           January 27, 1998
        Mark E. Nagle             Financial Officer
 
       /s/ David G. Lee
- ------------------------------  President & Chief            January 27, 1998
         David G. Lee             Executive Officer
 
    
 
   
*By:      /s/ David G. Lee
      -------------------------
            David G. Lee
          ATTORNEY IN FACT
    
 
                                       19
<PAGE>
                                 EXHIBIT INDEX
 
   
<TABLE>
<CAPTION>
      EXHIBIT
- --------------------
<S>                   <C>
EX-99.B(1)            Agreement and Declaration of Trust dated October 17, 1986 as originally filed with
                        Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed with
                        the SEC on October 17, 1986 is filed herewith.
 
EX-99.B(1)(a)         Amendment to the Declaration of Trust dated December 23, 1988 is incorporated by
                        reference to Post-Effective Amendment No. 27 to Registrant's Registration
                        Statement on Form N-1A (File No. 33-9504) filed with the SEC on December 19,
                        1997.
 
EX-99.B(2)            By-Laws filed with Registrant's Registration Statement on Form N-1A (File No.
                        33-9504) filed with the SEC on October 17, 1986.
 
EX-99.B(2)(a)         Amended and Restated By-Law are filed herewith.
 
EX-99.B(3)            Not Applicable.
 
EX-99.B(4)            Not Applicable.
 
EX-99.B(5)(a)         Investment Advisory Agreement between the Trust and SunBank, N.A. with respect to
                        the Trust's Capital Appreciation Portfolio filed as Exhibit (5)(b) to
                        Post-Effective Amendment No. 4 to Registrant's Registration Statement on Form
                        N-1A (File No. 33-9504) filed with the SEC on November 25, 1987.
 
EX-99.B(5)(b)         Investment Advisory Agreement between the Trust and The Bank of California with
                        respect to the Trust's Equity Income Portfolio filed as Exhibit (5)(c) to
                        Post-Effective Amendment No. 4 to Registrant's Registration Statement on Form
                        N-1A (File No. 33-9504) filed with the SEC on November 25, 1987.
 
EX-99.B(5)(c)         Investment Advisory Agreement between the Trust and Merus Capital Management, Inc.
                        with respect to the Trust's Equity Income Portfolio filed as Exhibit (5)(d) to
                        Post-Effective Amendment No. 4 to Registrant's Registration Statement on Form
                        N-1A (File No. 33-9504) filed with the SEC on November 25, 1987.
 
EX-99.B(5)(d)         Investment Advisory Agreement between the Trust and Boatmen's Trust Company with
                        respect to the Trust's Bond Portfolio filed as Exhibit (5)(e) to Post-Effective
                        Amendment No. 5 to Registrant's Registration Statement on Form N-1A (File No.
                        33-9504) filed with the SEC on November 30, 1988.
 
EX-99.B(5)(e)         Investment Advisory Agreement between the Trust and Bank One, Indianapolis, N.A.
                        with respect to the Trust's Limited Volatility Bond Portfolio filed as Exhibit
                        (5)(f) to Post-Effective Amendment No. 6 to Registrant's Registration Statement
                        on Form N-1A (File No. 33-9504) filed with the SEC on May 4, 1989.
 
EX-99.B(5)(f)         Investment Advisory Agreement between the Trust and Nicholas-Applegate Capital
                        Management with respect to the Trust's Mid-Cap Growth Portfolio filed as Exhibit
                        (5)(h) to Post-Effective Amendment No. 12 to Registrant's Registration Statement
                        on Form N-1A (File No. 33-9504) filed with the SEC on September 15, 1992.
</TABLE>
    
<PAGE>
   
<TABLE>
<CAPTION>
      EXHIBIT
- --------------------
<S>                   <C>
EX-99.B(5)(g)         Investment Sub-Advisory Agreement between the SEI Investments Management
                        Corporation (the "Adviser") and Investment Advisers, Inc. with respect to the
                        Trust's Small Cap Growth Portfolio incorporated by reference as Exhibit (5)(i) to
                        Post-Effective Amendment No. 25 to Registrant's Registration Statement on Form
                        N-1A (File No. 33-9504) filed with the SEC on November 30, 1995.
 
EX-99.B(5)(h)         Investment Sub-Advisory Agreement between the Adviser and Nicholas-Applegate
                        Capital Management with respect to the Trust's Small Cap Growth Portfolio
                        incorporated by reference as Exhibit (5)(j) to Post-Effective Amendment No. 25 to
                        Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed with
                        the SEC on November 30, 1995.
 
EX-99.B(5)(i)         Investment Advisory Agreement between the Adviser and Pilgrim Baxter & Associates
                        with respect to the Trust's Small Cap Growth Portfolio filed as Exhibit (5)(k) to
                        Post-Effective Amendment No. 25 to Registrant's Registration Statement on Form
                        N-1A (File No. 33-9504) filed with the SEC on November 30, 1995.
 
EX-99.B(5)(j)         Investment Advisory Agreement between the Trust and Duff & Phelps Investment
                        Management Co. with respect to the Trust's Value Portfolio incorporated by
                        reference as Exhibit (5)(l) to Post-Effective Amendment No. 17 to Registrant's
                        Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC on June
                        21, 1993.
 
EX-99.B(5)(k)         Investment Advisory Agreement between the Trust and E.I.I. Realty Securities, Inc.
                        with respect to the Trust's Real Estate Securities Portfolio incorporated by
                        reference as Exhibit (5)(n) to Post-Effective Amendment No. 25 to Registrant's
                        Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC on
                        November 30, 1995.
 
EX-99.B(5)(l)         Investment Advisory Agreement between the Trust and Western Asset Management with
                        respect to the Trust's Intermediate Bond Portfolio filed as Exhibit (5)(o) to
                        Post-Effective Amendment No. 21 to Registrant's Registration Statement on Form
                        N-1A (File No. 33-9504) filed with the SEC on November 29, 1994.
 
EX-99.B(5)(m)         Investment Advisory Agreement between the Trust and Mellon Equity Associates, LLP
                        with respect to the Trust's Large Cap Value Portfolio filed as Exhibit (5)(p) to
                        Post-Effective Amendment No. 21 to Registrant's Registration Statement on Form
                        N-1A (File No. 33-9504) filed with the SEC on November 29, 1994 is filed
                        herewith.
 
EX-99.B(5)(n)         Investment Sub-Advisory Agreement between the Adviser and LSV Asset Management with
                        respect to the Trust's Large Cap Value Portfolio incorporated by reference as
                        Exhibit (5)(q) to Post-Effective Amendment No. 25 to Registrant's Registration
                        Statement on Form N-1A (File No. 33-9504) filed with the SEC on November 30,
                        1995.
 
EX-99.B(5)(o)         Investment Sub-Advisory Agreement between the Adviser and Alliance Capital
                        Management L.P. with respect to the Trust's Large Cap Growth Portfolio
                        incorporated by reference as Exhibit (5)(r) to Post-Effective Amendment No. 25 to
                        Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed with
                        the SEC on November 30, 1995.
</TABLE>
    
<PAGE>
<TABLE>
<CAPTION>
      EXHIBIT
- --------------------
<S>                   <C>
EX-99.B(5)(p)         Investment Sub-Advisory Agreement between the Adviser and IDS Advisory Group, Inc.
                        with respect to the Trust's Large Cap Growth Portfolio incorporated by reference
                        as Exhibit (5)(s) to Post-Effective Amendment No. 25 to Registrant's Registration
                        Statement on Form N-1A (File No. 33-9504) filed with the SEC on November 30,
                        1995.
 
EX-99.B(5)(q)         Investment Sub-Advisory Agreement between the Adviser and 1838 Investment Advisors,
                        L.P. with respect to the Trust's Small Cap Value Portfolio incorporated by
                        reference as Exhibit (5)(t) to Post-Effective Amendment No. 25 to Registrant's
                        Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC on
                        November 30, 1995.
 
EX-99.B(5)(r)         Investment Sub-Advisory Agreement between the Adviser and Martingale Asset
                        Management with respect to the Trust's Mid-Cap Portfolio incorporated by
                        reference as Exhibit (5)(u) to Post-Effective Amendment No. 25 to Registrant's
                        Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC on
                        November 30, 1995.
 
EX-99.B(5)(s)         Form of Investment Sub-Advisory Agreement between the Adviser and BlackRock
                        Financial Management, Inc. with respect to the Trust's Core Fixed Income
                        Portfolio incorporated by reference as Exhibit (5)(v) to Post-Effective Amendment
                        No. 25 to Registrant's Registration Statement on Form N-1A (File No. 33-9504)
                        filed with the SEC on November 30, 1995.
 
EX-99.B(5)(t)         Investment Sub-Advisory Agreement between the Adviser and Firstar Investment
                        Research & Management Company with respect to the Trust's Core Fixed Income
                        Portfolio incorporated by reference as Exhibit (5)(x) to Post-Effective Amendment
                        No. 25 to Registrant's Registration Statement on Form N-1A (File No. 33-9504)
                        filed with the SEC on November 30, 1995.
 
EX-99.B(5)(u)         Investment Sub-Advisory Agreement between the Adviser and BEA Associates with
                        respect to the Trust's High Yield Bond Portfolio incorporated by reference as
                        Exhibit (5)(y) to Post-Effective Amendment No. 25 to Registrant's Registration
                        Statement on Form N-1A (File No. 33-9504) filed with the SEC on November 30,
                        1995.
 
EX-99.B(5)(v)         Investment Sub-Advisory Agreement between the Adviser and Boston Partners Asset
                        Management, L.P. with respect to the Trust's Small Cap Value Portfolio
                        incorporated by reference as Exhibit (5)(z) to Post-Effective Amendment No. 25 to
                        Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed with
                        the SEC on November 30, 1995.
 
EX-99.B(5)(w)         Investment Sub-Advisory Agreement between the Adviser and Apodaca-Johnston Capital
                        Management, Inc. with respect to the Trust's Small Cap Growth Portfolio
                        incorporated by reference as Exhibit (5)(aa) to Post-Effective Amendment No. 25
                        to Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed with
                        the SEC on November 30, 1995.
</TABLE>
<PAGE>
   
<TABLE>
<CAPTION>
      EXHIBIT
- --------------------
<S>                   <C>
EX-99.B(5)(x)         Investment Sub-Advisory Agreement between the Adviser and Wall Street Associates
                        with respect to the Trust's Small Cap Growth Portfolio incorporated by reference
                        as Exhibit (5)(bb) to Post-Effective Amendment No. 25 to Registrant's
                        Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC on
                        November 30, 1995.
 
EX-99.B(5)(y)         Investment Sub-Advisory Agreement between the Adviser and First of America
                        Corporation dated June 14, 1996 with respect to the Trust's Small Cap Growth
                        Portfolio is incorporated by reference to Post-Effective Amendment No. 26 to
                        Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed with
                        the SEC on January 28, 1997.
 
EX-99.B(5)(z)         Investment Sub-Advisory Agreement between the Adviser and Furman Selz Capital
                        Management LLC with respect to the Trust's Small Cap Growth Portfolio as
                        previously filed with Post-Effective Amendment No. 26 to Registrant's
                        Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC on
                        January 28, 1997 is filed herewith.
 
EX-99.B(5)(aa)        Investment Sub-Advisory Agreement between the Adviser and Provident Investment
                        Counsel, Inc. with respect to the Trust's Large Cap Growth Portfolio is
                        incorporated by reference to Post-Effective Amendment No. 26 to Registrant's
                        Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC on
                        January 28, 1997 is filed herewith.
 
EX-99.B(5)(bb)        Investment Sub-Advisory Agreement between the Adviser and Boatmen's Trust Company
                        dated December 16, 1996 with respect to the Trust's Bond Portfolio is
                        incorporated by reference to Post-Effective Amendment No. 26 to Registrant's
                        Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC on
                        January 28, 1997.
 
EX-99.B(5)(cc)        Investment Advisory Agreement between the Trust and the Adviser dated December 16,
                        1994 is incorporated by reference to Post-Effective Amendment No. 26 to
                        Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed with
                        the SEC on January 28, 1997.
 
EX-99.B(5)(dd)        Investment Sub-Advisory Agreement between the Adviser and Western Asset Management
                        Company dated November 13, 1995 is filed herewith.
 
EX-99.B(5)(ee)        Investment Sub-Advisory Agreement between the Adviser and Sanford C. Bernstein Co.,
                        Inc. dated December 15, 1997 is filed herewith.
 
EX-99.B(5)(ff)        Investment Sub-Advisory Agreement between the Adviser and Pacific Alliance Capital
                        Management (formerly, Merus-UCA Capital Management) dated April 1, 1996 is filed
                        herewith.
 
EX-99.B(5)(gg)        Investment Sub-Advisory Agreement between the Adviser and STI Capital Management,
                        N.A. (formerly "Sun Bank Capital Management, N.A.") dated July 10, 1995 is filed
                        herewith.
 
EX-99.B(6)            Distribution Agreement between the Trust and SEI Investments Distribution Co. as
                        originally filed with Registrant's Registration Statement on Form N-1A (File No.
                        33-9504) filed with the SEC on October 17, 1986 is filed herewith.
 
EX-99.B(7)            Not Applicable.
</TABLE>
    
<PAGE>
   
<TABLE>
<CAPTION>
      EXHIBIT
- --------------------
<S>                   <C>
EX-99.B(8)(a)         Custodian Agreement between the Trust and CoreStates Bank, N.A. (formerly
                        Philadelphia National Bank) as originally filed with Pre-Effective Amendment No.
                        1 to Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed
                        with the SEC on January 29, 1987 is filed herewith.
 
EX-99.B(8)(b)         Custodian Agreement between the Trust and United States National Bank of Oregon
                        filed with Pre-Effective Amendment No. 1 to Registrant's Registration Statement
                        on Form N-1A (File No. 33-9504) filed with the SEC on January 29, 1987.
 
EX-99.B(9)(a)         Management Agreement between the Trust and SEI Investments Management Corporation
                        as originally filed with Exhibit (5)(a) to Registrant's Registration Statement on
                        Form N-1A (File No. 33-9504) filed with the SEC on October 17, 1986 is filed
                        herewith.
 
EX-99.B(9)(b)         Schedule C to Management Agreement between the Trust and SEI Investments Management
                        Corporation adding the Mid-Cap Growth Portfolio as originally filed as Exhibit
                        (5)(j) to Post-Effective Amendment No. 12 to Registrant's Registration Statement
                        on Form N-1A (File No. 33-9504) filed with the SEC on September 15, 1992 is filed
                        herewith.
 
EX-99.B(9)(c)         Schedule D to Management Agreement between the Trust and SEI Investments Management
                        Corporation adding the Real Estate Securities Portfolio filed as Exhibit (5)(m)
                        to Post-Effective Amendment No. 17 to Registrant's Registration Statement on Form
                        N-1A (File No. 33-9504) filed with the SEC on June 21, 1993.
 
EX-99.B(9)(d)         Consent to Assignment and Assumption between SIMC and SEI Fund Management dated
                        August 21, 1996 is incorporated by reference to Post-Effective Amendment No. 26
                        to Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed with
                        the SEC on January 28, 1997.
 
EX-99.B(10)           Opinion and Consent of Counsel as originally filed with Pre-Effective Amendment No.
                        1 to Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed
                        with the SEC on January 29, 1987 is filed herewith.
 
EX-99.B(11)           Consent of Independent Accountants is filed herewith.
 
EX-99.B(12)           Not Applicable.
 
EX-99.B(13)           Not Applicable.
 
EX-99.B(14)           Not Applicable.
 
EX-99.B(15)(a)        Distribution Plan pursuant to Rule 12b-1 (Class A) filed with Registrant's
                        Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC on
                        October 17, 1986.
 
EX-99.B(15)(b)        Distribution Plan pursuant to Rule 12b-1 (Class B) filed with Post-Effective
                        Amendment No. 17 to Registrant's Registration Statement on Form N-1A (File No.
                        33-9504) filed with the SEC on June 21, 1993.
 
EX-99.B(15)(c)        Distribution Plan pursuant to Rule 12b-1 (ProVantage Class) filed with
                        Post-Effective Amendment No. 19 to Registrant's Registration Statement on Form
                        N-1A (File No. 33-9504) filed with the SEC on December 2, 1993.
</TABLE>
    
<PAGE>
   
<TABLE>
<CAPTION>
      EXHIBIT
- --------------------
<S>                   <C>
EX-99.B(15)(d)        Amended and Restated Distribution Plan is incorporated by reference to
                        Post-Effective Amendment No. 26 to Registrant's Registration Statement on Form
                        N-1A (File No. 33-9504) filed with the SEC on January 28, 1997.
 
EX-99.B(15)(e)        Shareholder Service Plan and Agreement with respect to the Class A shares is
                        incorporated by reference to Post-Effective Amendment No. 26 to Registrant's
                        Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC on
                        January 28, 1997.
 
EX-99.B(16)           Performance Quotation Computation as originally filed with Post-Effective Amendment
                        No. 19 to Registrant's Registration Statement on Form N-1A (File No. 33-9504)
                        filed with the SEC on December 2, 1993 is filed herewith.
 
EX-99.B(18)(a)        Rule 18f-3 Multiple Class Plan incorporated by reference as Exhibit (15)(d) to
                        Post-Effective Amendment No. 23 to Registrant's Registration Statement on Form
                        N-1A (File No. 33-9504) filed with the SEC on June 19, 1995.
 
EX-99.B(18)(b)        Amendment No. 1 to Rule 18f-3 Plan relating to Class A and Class D shares is
                        incorporated by reference to Post-Effective Amendment No. 26 to Registrant's
                        Registration Statement on Form N-1A (File No. 33-9504) filed with the SEC on
                        January 28, 1997.
 
EX-99.B(24)           Powers of Attorney for Robert A. Nesher, William M. Doran, George J. Sullivan, Jr.,
                        F. Wendell Gooch, Stephen G. Meyer, James M. Storey, David G. Lee and Frank E.
                        Morris are incorporated by reference to Post-Effective Amendment No. 26 to
                        Registrant's Registration Statement on Form N-1A (File No. 33-9504) filed with
                        the SEC on January 28, 1997.
 
EX-27.1               Financial Data Schedule for the Class A Large Cap Growth Portfolio.
 
EX-27.2               Financial Data Schedule for the Class A Small Cap Value Portfolio.
 
EX-27.3               Financial Data Schedule for the Class A High Yield Bond Portfolio.
 
EX-27.4               Financial Data Schedule for the Class A Large Cap Value Portfolio.
 
EX-27.5               Financial Data Schedule for the Class A Balanced Portfolio.
 
EX-27.6               Financial Data Schedule for the Class A Capital Appreciation Portfolio.
 
EX-27.7               Financial Data Schedule for the Class A Equity Income Portfolio.
 
EX-27.8               Financial Data Schedule for the Class A Core Fixed Income Portfolio.
 
EX-27.9               Financial Data Schedule for the Class A Bond Portfolio.
 
EX-27.10              Financial Data Schedule for the Class A Small Cap Growth Portfolio.
 
EX-27.11              Financial Data Schedule for the Class D Small Cap Growth Portfolio.
 
EX-27.12              Financial Data Schedule for the Class A Mid-Cap Portfolio.
</TABLE>
    

<PAGE>

                                                              Exhibit 99.B(1)

                      TRUSTFUNDS INSTITUTIONAL MANAGED TRUST

                        AGREEMENT AND DECLARATION OF TRUST


    AGREEMENT AND DECLARATION OF TRUST dated the 17th day of October, 1986, 
by the Trustees hereunder, and by the holders of Shares of beneficial 
interest to be issued hereunder as hereinafter provided.

    WITNESSETH that

    WHEREAS, this Trust has been formed to carry on the business of an 
investment company; and

    WHEREAS, the Trustees have agreed to manage all property coming into 
their hands as trustees of a Massachusetts voluntary association with 
transferable Shares in accordance with the provisions hereinafter set forth.

    NOW, THEREFORE, the Trustees hereby declare that they will hold all cash, 
securities and other assets, which they may from time to time acquire in any 
manner as Trustees hereunder IN TRUST to manage and dispose of the same upon 
the following terms and conditions for the pro rata benefit of the holders 
from time to time of Shares in this Trust as hereinafter set forth.


                                   ARTICLE I
                             Name and Definitions

Name

    Section 1.  This Trust shall be known as the "TrustFunds Institutional 
Managed Trust" and the Trustees shall conduct the business of the Trust under 
that name or any other name as they may from time to time determine.

Definitions

    Section 2.  Whenever used herein, unless otherwise required by the 
context or specifically provided:

        (a) The "Trust" refers to the Massachusetts voluntary association 
    established by this Agreement and Declaration of Trust, as amended from 
    time to time;

        (b) "Trustees" refers to the Trustees of the Trust named herein or 
    elected in accordance with Article IV and then in office;

        (c) The term "Shares" means the equal proportionate transferable 
    units of interest into which the beneficial interest in the Trust shall 
    be divided from time to time or,



<PAGE>

    if more than one series of Shares is authorized by the Trustees, the 
    equal proportionate transferable units into which each series of Shares 
    shall be divided from time to time;

        (d)  "Shareholder" means a record owner of Shares;

        (e)  The "1940 Act" refers to the Investment Company Act of 1940 and 
    the Rules and Regulations thereunder, all as amended from time to time;

        (f)  The terms "Affiliated Person," "Assignment," and "Majority 
    Shareholder Vote" (the 67% or 50% requirement of the third sentence of 
    Section 2(a)(42) of the 1940 Act, whichever may be applicable) shall have 
    the meanings given them in the 1940 Act;

        (g)  "Declaration of Trust" shall mean this Agreement and Declaration 
    of Trust as amended or restated from time to time; and

        (h)  "By-Laws" shall mean the By-Laws of the Trust as amended from 
    time to time.

                                 ARTICLE II
                                  Purpose

    The purpose of the Trust is to provide investors with one or more 
investment portfolios consisting primarily of securities, including debt 
instruments or obligations.

                                 ARTICLE III
                                   Shares

Division of Beneficial Interest

    Section I.  The Shares of the Trust shall be issued in one or more series 
as the Trustees may, without shareholder approval, authorize. Each series 
shall be preferred over all other series in respect of the assets allocated 
to that series. The beneficial interest in each series shall at all times be 
divided into Shares, without par value, each of which shall represent an 
equal proportionate interest in the series with each other Share of the same 
series, none having priority or preference over another. Each series shall be 
represented by one or more classes of Shares, with each class possessing such 
rights (including, notwithstanding any contrary provision herein, voting 
rights) as the Trustees may, without shareholder approval, authorize. The 
number of Shares authorized shall be unlimited, and the Shares so authorized 
may be represented in part by fractional Shares. The 

                                      2




<PAGE>

Trustees may from time to time divide or combine the Shares of any series 
into a greater or lesser number without thereby changing the proportionate 
beneficial interests in the series.

Ownership of Shares

    Section 2. The ownership of Shares shall be recorded on the books of the 
Trust or its transfer or similar agent. No certificates certifying the 
ownership of Shares shall be issued except as the Trustees may otherwise 
determine from time to time. The Trustees may make such rules as they 
consider appropriate for the issuance of Share certificates, the transfer of 
Shares and similar matters. The record books of the Trust as kept by the 
Trust or any transfer or similar agent of the Trust, as the case may be, 
shall be conclusive as to who are the Shareholders of each series and as to 
the number of Shares of each series held from time to time by each 
Shareholder.

Investments in the Trust; Assets of the Series

    Section 3. The Trustees may accept investments in the Trust from such 
persons and on such terms and, subject to any requirements of law, for such 
consideration, which may consist of cash or tangible or intangible property 
or a combination thereof, as they may from time to time authorize.

    All consideration received by the Trust for the issue or sale of Shares of 
each series, together with all income, earnings, profits, and proceeds 
thereof, including any proceeds derived from the sale, exchange or 
liquidation thereof, and any funds or payments derived from any reinvestment 
of such proceeds in whatever form the same may be, shall irrevocably belong 
to the series of Shares with respect to which the same were received by the 
Trust for all purposes, subject only to the rights of creditors, and shall be 
so recorded upon the books of account of the Trust and are herein referred to 
as "assets of" such series. In addition, any assets, income, earnings, 
profits, and proceeds thereof, funds, or payments which are not readily 
identifiable as belonging to any particular series shall be allocated by the 
Trustees between and among one or more of the series in such manner as they, 
in their sole discretion, deem fair and equitable. Each such allocation shall 
be conclusive and binding upon the Shareholders of all series for all 
purposes, and shall be referred to as assets belonging to that series.

No Preemptive Rights

    Section 4. Shareholders shall have no preemptive or other right to 
receive, purchase or subscribe for any additional Shares or other securities 
issued by the Trust.


                                       3
<PAGE>

Status of Shares and Limitation of Personal Liability

    Section 5. Shares shall be deemed to be personal property giving only the 
rights provided in this instrument. Every Shareholder by virtue of having 
become a Shareholder shall be held to have expressly assented and agreed to 
the terms of this Declaration of Trust and to have become a party thereto. 
The death of a Shareholder during the continuance of the Trust shall not 
operate to terminate the same nor entitle the representative of any deceased 
Shareholder to an accounting or to take any action in court or elsewhere 
against the Trust or the Trustees, but only to the rights of said decent 
under this Trust. Ownership of Shares shall not entitle the Shareholder to 
any title in or to the whole of any part of the Trust property or right to 
call for a partition or division of the same or for an accounting, nor shall 
the ownership of Shares constitute the Shareholders partners. Neither the 
Trust nor the Trustees, nor any officer, employee  or agent of the Trust 
shall have any power to bind personally any Shareholder, nor, except as 
specifically provided herein, to call upon any Shareholder for the payment of 
any sum of money or assessment whatsoever other than such as the Shareholder 
may at any time personally agree to pay.

Trustees and Officers as Shareholders

    Section 6. Any Trustee, officer or other agent of the Trust may acquire, 
own and dispose of Shares of the Trust to the same extent as if he were not a 
Trustee, officer or agent; and the Trustees may issue and sell or cause to be 
issued and sold Shares to and buy such Shares from any such person of any 
firm or company in which he is interested, subject only to the general 
limitations herein contained as to the sale and purchase of such Shares; and 
all subject to any restrictions which may be contained in the By-Laws.


                                 ARTICLE IV
                                The Trustees

Election

    Section 1. The number of Trustees shall be fixed by the Trustees, except 
that these shall be not less than three nor more than fifteen Trustees, each 
of whom shall hold office during the lifetime of this Trust or until the 
election and qualification of his or her successor, or until he or she sooner 
dies, resigns or is removed. The number of Trustees so fixed may be increased 
either by the Shareholders or by the Trustees by a vote of a majority of the 
Trustees then in office. The number of Trustees so fixed may be decreased 
either by the Shareholders or by the Trustees by vote of a majority of the 
Trustees then in office, but only to eliminate vacancies existing by reason 
of the death, resignation or removal or one or more Trustees. The initial 
Trustees, each of whom shall serve until the first meeting of

                                       4

<PAGE>

Shareholders at which Trustees are elected and until his or her successor is 
elected and qualified, or until he or she sooner dies, resigns or is removed, 
shall be William M. Doran and such other persons as the Trustee or Trustees 
then in office shall, prior to any sale of Shares pursuant to public 
offering, appoint.  By vote of the Shareholders holding a majority of the 
shares entitled to vote, the Shareholders may remove a Trustee with or 
without cause. By vote of a majority of the Trustees then in office, the 
Trustees may remove a Trustee for cause.  Any Trustee may, but need not, be a 
Shareholder.

    In case of the declination, death, resignation, retirement, removal, 
incapacity, or inability of any of the Trustees, or in case a vacancy shall 
exist by reason of an increase in number, or for any other reason, the 
remaining Trustees shall fill such vacancy by appointing such other person as 
they in their discretion shall see fit consistent with the limitations under 
the Investment Company Act of 1940.  Such appointment shall be evidenced by a 
written instrument signed by a majority of the Trustees in office or by 
recording in the records of the Trust, whereupon the appointment shall take 
effect.  An appointment of a Trustee may be made by the Trustees then in 
office in anticipation of a vacancy to occur by reason of retirement, 
resignation or increase in number of Trustees effective at a later date, 
provided that said appointment shall become effective only at or after the 
effective date of said retirement, resignation or increase in number of 
Trustees.  As soon as any Trustee so appointed shall have accepted this 
trust, the trust estate shall vest in the new Trustee or Trustees, together 
with the continuing Trustees, without any further act or conveyance, and he 
shall be deemed a Trustee hereunder.  The power of appointment is subject to 
the provisions of Section 16(a) of the 1940 Act.  In the event that at any 
time after the commencement of public sales of Trust Shares less than a 
majority of the Trustees then holding office were elected to such office by 
the Shareholders, the Trustees or the Trust's President promptly shall call a 
meeting of Shareholders for the purpose of electing Trustees.  Each Trustee 
elected by the Shareholders or by the Trustees shall serve until the election 
or qualification of his or her successor, or until he or she sooner dies, 
resigns or is removed.

Effect of Death, Resignation, etc. of a Trustee

    Section 2.  The death, declination, resignation, retirement, removal, or 
incapacity of the Trustees, or any one of them, shall not operate to annul 
the Trust or to revoke any existing agency created pursuant to the terms of 
this Declaration of Trust.

                                        5

<PAGE>

Powers

    Section 3.  Subject to the provisions of this Declaration of Trust, the 
business of the Trust shall be managed by the Trustees, and they shall have 
all powers necessary or convenient to carry out that responsibility. Without 
limiting the foregoing, the Trustees may adopt By-Laws not inconsistent with 
this Declaration of Trust providing for the conduct of the business of the 
Trust and may amend and repeal them to the extent that such By-Laws do not 
reserve that right to the Shareholders; they may fill vacancies in their 
number, including vacancies resulting from increases in their number, and 
may elect and remove such officers and appoint and terminate such agents as 
they consider appropriate; they may appoint from their own number, and 
terminate, any one or more committees consisting of two or more Trustees, 
including an executive committee which may, when the Trustees are not in 
session, exercise some or all of the powers and authority of the Trustees as 
the Trustees may determine; they may appoint an advisory board, the members 
of which shall not be Trustees and need not be Shareholders; they may employ 
one or more investment advisors or managers as provided in Section 7 of this 
Article IV; they may employ one or more custodians of the assets of the Trust 
and may authorize such custodians to employ subcustodians and to deposit all 
or any part of such assets in a system or systems for the central handling of 
securities, retain a transfer agent or a Shareholder servicing agent, or both, 
provide for the distribution of Shares by the Trust, through one or more  
principal underwriters or otherwise, set record dates for the determination 
of Shareholders with respect to various matters, and in general delegate such 
authority as they consider desirable to any officer of the Trust, to any 
committee of the Trustees and to any agent or employee of the Trust or to any 
such custodian or underwriter; and they may elect and remove such officers 
and appoint and terminate such agents as they consider appropriate.

    Without limiting the foregoing, the Trustees shall have power and 
authority:

    (a) To invest and reinvest cash, and to hold cash uninvested;

    (b) To sell, exchange, lend, pledge, mortgage, hypothecate; write options 
on and lease any or all of the assets of the Trust;

    (c) To vote or give assent, or exercise any rights of ownership, with 
respect to stock or other securities or property; and to execute and deliver 
proxies or powers of attorney to such person or persons as the Trustees shall 
deem proper, granting to such person or persons such power and discretion 
with relation to securities or property as the Trustees shall deem proper;

                                       6
<PAGE>

    (d) To exercise powers and rights of subscription or otherwise which in 
any manner arise out of ownership of securities;

    (e) To hold any security or property in a form not indicating any trust, 
whether in bearer, unregistered or other negotiable form, or in the name of 
the Trustees or of the Trust or in the name of a custodian, subcustodian or 
other depositary or a nominee or nominees or otherwise;

    (f) To establish separate and distinct series of shares with separately 
defined investment objectives, policies and purposes, and to allocate assets, 
liabilities and expenses of the Trust to a particular series of Shares or to 
apportion the same among two or more series, provided that any liability or 
expense incurred by a particular series of Shares shall be payable solely out 
of the assets of that series;

    (g) To consent to or participate in any plan for the reorganization, 
consolidation or merger of any corporation or issuer, any security or 
property of which is or was held in the Trust; to consent to any contract, 
lease, mortgage, purchase or sale of property by such corporation or issuer, 
and to pay calls or subscriptions with respect to any security held in the 
Trust;

    (h) To join with other security holders in acting through a committee, 
depositary, voting trustee or otherwise, and in that connection to deposit 
any security with, or transfer any security to, any such committee, 
depositary or trustee, and to delegate to them such power and authority with 
relation to any security (whether or not so deposited or transferred) as the 
Trustees shall deem proper, and to agree to pay, and to pay, such portion of 
the expenses and compensation of such committee, depositary or trustee as the 
Trustees shall deem proper;

    (i) To compromise, arbitrate or otherwise adjust claims in favor of or 
against the Trust or any matter in controversy, including but not limited to 
claims for taxes;

    (j) To enter into joint ventures, general or limited partnerships and 
any other combinations or associations;

    (k) To borrow funds from a bank for temporary or emergency purposes and 
not for investment purposes;

    (l) To endorse or guarantee the payment of any notes or other obligations 
of any person; to make contracts of guaranty or suretyship, or otherwise 
assume liability for payment thereof; and to mortgage and pledge the Trust 
property or any part thereof to secure any or all of such obligations;

                                     7


<PAGE>

    (m) To purchase and pay for entirely out of Trust property such insurance 
as they may deem necessary or appropriate for the conduct of the business, 
including, without limitation, insurance policies insuring the assets of the 
Trust and payment of distributions and principal on its portfolio 
investments, and insurance policies insuring the Shareholders, Trustees, 
officers, employees, agents, investment advisers or managers, principal 
underwriters, or independent contractors of the Trust individually against 
all claims and liabilities of every nature arising by reason of holding, 
being or having held any such office or position, or by reason of any action 
alleged to have been taken or omitted by any such person as Shareholder, 
Trustee, officer, employee, agent, investment adviser or manager, principal 
underwriter, or independent contractor, including any action taken or omitted 
that may be determined to constitute negligence, whether or not the Trust 
would have the power to indemnify such person against such liability; and

    (n) To pay pensions for faithful service, as deemed appropriate by the 
Trustees, and to adopt, establish and carry out pension, profit-sharing, 
share bonus, share purchase, savings, thrift and other retirement, incentive 
and benefit plans, trusts and provisions, including the purchasing of life 
insurance and annuity contracts as a means of providing such retirement and 
other benefits, for any or all of the Trustees, officers, employees and 
agents of the Trust.

    (o) To establish, from time to time, a minimum total investment for 
Shareholders, and to require the redemption of the Shares of any Shareholders 
whose investment is less than such minimum upon giving notice to such 
Shareholder.

    The Trustees shall not in any way be bound or limited by any present or 
future law or custom in regard to investments by Trustees. Except as 
otherwise provided herein or from time to time in the By-Laws, any action to 
be taken by the Trustees may be taken by a majority of the Trustees present at 
a meeting of Trustees (if a quorum be present), within or without 
Massachusetts, including any meeting held by means of a conference telephone 
or other communications equipment by means of which all persons 
participating in the meeting can communicate with each other simultaneously 
and participation by such means shall constitute presence in person at a 
meeting, or by written consent of a majority of the Trustees then in office.

Payment of Expenses by the Trust

    Section 4. The Trustees are authorized to pay or to cause to be paid out 
of the principal or income of the Trust, or partly out of principal and 
partly out of income, as they deem fair, all expenses, fees, charges, taxes 
and liabilities incurred or arising in connection with the Trust, or in 
connection with the management thereof, including, but not limited to, the 
Trustees'

                                     8




<PAGE>

compensation and such expenses and charges for the services of the Trust's 
officers, employees, investment adviser or manager, principal underwriter, 
auditor, counsel, custodian, transfer agent, Shareholder servicing agent, and 
such other agents or independent contractors and such other expenses and 
charges as the Trustees may deem necessary or proper to incur, provided, 
however, that all expenses, fees, charges, taxes and liabilities incurred or 
arising in connection with a particular series of Shares as determined by the 
Trustees, shall be payable solely out of the assets of that series. Any 
general liabilities, expenses, costs, charges or reserves of the Trust which 
are not readily identifiable as belonging to any particular series shall be 
allocated and charged by the Trustees between or among any one or more of the 
series in such manner as the Trustees in their sole discretion deem fair and 
equitable. Each such allocation shall be conclusive and binding upon the 
Shareholders of all series for all purposes. Any creditor of any series may 
look only to the assets of that series to satisfy such creditor's debt.

    SECTION 5. The Trustees shall have the power, as frequently as they may 
determine, to cause each Shareholder to pay directly, in advance or arrears, 
for any and all expenses of the Trust, an amount fixed from time to time by 
the Trustees, by setting off such charges due from such Shareholder from 
declared but unpaid dividends owed such Shareholder and/or by reducing the 
number of Shares in the account of such Shareholder by that number of full 
and/or fractional Shares which represents the outstanding amount of such 
charges due from such Shareholder.

Ownership of Assets of the Trust

    SECTION 6. Title to all of the assets of each series of Shares and of the 
Trust shall at all times be considered as vested in  the Trustees.

Advisory, Management and Distribution

    SECTION 7. The Trustees may, at any time and from time to time, contract 
with respect to the Trust or any series thereof for exclusive or nonexclusive 
advisory and/or management services with SEI Financial Management 
Corporation, a Delaware corporation, and/or any other corporation, trust, 
association or other organization, every such contract to comply with such 
requirements and restrictions as may be set forth in the By-Laws; and any 
such contract may contain such other terms interpretive of or in addition to 
said requirements and restrictions as the Trustees may determine, including, 
without limitation, authority to determine from time to time what investments 
shall be purchased, held, sold or exchanged and what portion, if any, of the 
assets of the Trust shall be held uninvested and to make changes in the 
Trust's investments. Any contract for advisory services shall be subject to 
such Shareholder approval as is required by the 1940 Act. The Trustees may 
also, at any time and

                                       9


<PAGE>

from time to time, contract with SEI Financial Services Company, a 
Pennsylvania corporation, and/or any other corporation, trust, association or 
other organization, appointing it exclusive or nonexclusive distributor or 
principal underwriter for the Shares, every such contract to comply with such 
requirements and restrictions as may be set forth in the By-Laws; and any 
such contract may contain such other terms interpretive of or in addition to 
said requirements and restrictions as the Trustees may determine.

    The fact that:

        (i) any of the Shareholders, Trustees or officers of the Trust is a 
    shareholder, director, officer, partner, trustee, employee, manager, 
    adviser, principal underwriter, or distributor or agent of or for any 
    corporation, trust, association, or other organization, or of or for any 
    parent or affiliate of any organization, with which an advisory or 
    management or principal underwriter's or distributor's contract, or 
    transfer, Shareholder servicing or other agency contract may have been or 
    may hereafter be made, or that any such organization, or any parent or 
    affiliate thereof, is a Shareholder or has an interest in the Trust, or 
    that

        (ii) any corporation, trust, association or other organization with 
    which an advisory or management or principal underwriter's or 
    distributor's contract, or transfer, Shareholder servicing or other 
    agency contract may have been or may hereafter be made also has an 
    advisory or management contact, or principal underwriter's or 
    distributor's contract, or transfer, Shareholder servicing or other 
    agency contract with one or more other corporations, trusts, 
    associations, or other organizations, or has other businesses or interests

shall not affect the validity of any such contract or disqualify any 
Shareholder, Trustee or officer of the Trust from voting upon or executing 
the same or create any liability or accountability to the Trust or its 
Shareholders.

Action by the Trustees

    Section 8. The Trustees shall act by majority vote at a meeting duly 
called or by unanimous written consent without a meeting or by telephone 
consent provided a quorum or Trustees participates in any such telephonic 
meeting, unless the 1940 Act requires that a particular action be taken only 
at a meeting in person of the Trustees. At any meeting of the Trustees, a 
majority of the Trustees shall constitute a quorum. Meetings of the Trustees 
may be called orally or in writing by the Chairman of the Trustees, by any 
two other Trustees, or by any officer of the Trust. Notice of the time, date 
and place of all meetings of the Trustees shall be given by the party calling 
the meeting to

                                         10
<PAGE>

each Trustee by telephone or telegram sent to his home or business address at 
least twenty-four hours in advance of the meeting or by written notice mailed 
to his home or business address at least seventy-two hours in advance of 
the meeting. Notice need not be given to any Trustee who attends the meeting 
without objecting to the lack of notice or who executes a written waiver of 
notice with respect to the meeting. Subject to the requirements of the 1940 
Act, the Trustees by majority vote may delegate to any one or their number 
their authority to approve particular matters or take particular actions on 
behalf of the Trust.


                                   ARTICLE V
                 Shareholders' Voting Powers and Meetings

Voting Powers

    Section 1. The Shareholders shall have power to vote only (i) for the 
election or removal of Trustees as provided in Article IV, Section 1, (ii) 
with respect to any investment adviser as provided in Article IV, Section 7, 
(iii) with respect to any termination of the Trust or any series to the 
extent and as provided in Article IX, Section 4, (iv) with respect to any 
amendment of this Declaration of Trust to the extent and as provided in 
Article IX, Section 7, (v) to the same extent as the stockholders of a 
Massachusetts business corporation as to whether or not a court action, 
proceeding or claim should or should not be brought or maintained 
derivatively or as a class action on behalf of the Trust or the 
Shareholders, and (vi) with respect to such additional matters relating to 
the Trust as may be required by law, by this Declaration of Trust, by the 
By-Laws or by any registration of the Trust with the Securities and Exchange 
Commission or any state, or as the Trustees may consider necessary or 
desirable.

    Each whole Share shall be entitled to one vote as to any matter on which 
it is entitled to vote and each fractional Share shall be entitled to a 
proportionate fractional vote. Notwithstanding any other provisions of this 
Declaration of Trust, on any matter submitted to a vote of Shareholders, all 
Shares of the Trust then entitled to vote shall be voted by individual 
series, except (1) when required by the 1940 Act, Shares shall be voted in 
the aggregate and not by individual series, and (2) when the Trustees have 
determined that the matter affects only the interests of one or more series, 
then only Shareholders of such series shall be entitled to vote thereon. 
There shall be no cumulative voting in the election of Trustees. Shares may 
be voted in person or by proxy.

    A proxy with respect to Shares held in the name of two or more persons 
shall be valid if executed by any one of them unless at or prior to the 
exercise of the proxy the Trust receives a specific written notice to the 
contrary from any one of them. A

                                       11


<PAGE>

proxy purporting to be executed by or on behalf of a Shareholder shall be 
deemed valid unless challenged at or prior to its exercise and the burden of 
proving invalidity shall rest on the challenger.

    Until Shares are issued, the Trustees may exercise all rights of 
Shareholders and may take any action required by law, this Declaration of 
Trust of the By-Laws to be taken by Shareholders.

Voting Power and Meetings

    Section 2.  Meetings of Shareholders of the Trust or of any series or 
class may be called by the Trustees, or such other person or persons as may 
be specified in the By-Laws, and held from time to time for the purpose of 
taking action upon any matter requiring the vote or the authority of the 
Shareholders of the Trust or any series or class as herein provided or upon 
any other matter deemed by the Trustees to be necessary or desirable. 
Meetings of Shareholders of the Trust or of any series or class shall be 
called by the Trustees or such other person or persons as may be specified in 
the By-Laws upon written application requesting that a meeting be called for 
a purpose requiring action by the Shareholders as provided herein or in the 
By-Laws by Shareholders holding at least 10% of the outstanding Shares of the 
Trust if Shareholders of all series are required hereunder to vote in the 
aggregate and not by individual series at such meeting, or Shareholders 
holding at least 10% of the outstanding shares of a series or class if 
Shareholders of such series or class are entitled hereunder to vote by 
individual series or class at such meeting. The Shareholders shall be 
entitled to at least seven days' written notice of any meeting of the 
Shareholders.

Quorum and Required Vote

    Section 3.  A majority of the Shares entitled to vote shall be a quorum 
for the transaction of business at a Shareholders' meeting, except that where 
any provision of law or of this Declaration of Trust permits or requires that 
holders of any series or class shall vote as a series or class, then a 
majority of the aggregate number of Shares of that series or class entitled 
to vote shall be necessary to constitute a quorum for the transaction of 
business by that series or class. Any lesser number, however, shall be 
sufficient for adjournments. Any adjourned session or sessions may be held 
within a reasonable time after the date set for the original meeting without 
the necessity of further notice.

    Except when a larger vote is required by any provisions of this 
Declaration of Trust or the By-Laws, a majority of the shares voted on any 
matter shall decide such matter and a plurality shall elect a Trustee, 
provided that where any


                                       12

<PAGE>

provision of law or of this Declaration of Trust permits or requires that the 
holders of any series of class shall vote as a series or class, then a 
majority of the Shares of that series or class voted on the matter shall 
decide that matter insofar as that series or class is concerned.

Action by Written Consent

    Section 4. Any action taken by Shareholders may be taken without a 
meeting if a majority of Shareholders entitled to vote on the matter (or such 
larger vote as shall be required by any provision of this Declaration of 
Trust or the By-Laws) consent to the action in writing and such written 
consents are filed with the records of the meetings of Shareholders. Such 
consent shall be treated for all purposes as a vote taken at a meeting of 
Shareholders.

Additional Provisions

    Section 5. The By-Laws may include further provisions for Shareholders' 
votes and meetings and related matters.

                                   ARTICLE VI

                      Distributions, Redemptions, Repurchases
                       and Determination of Net Asset Value

Distributions

    Section 1. The Trustees may, but need not, distribute each year to the 
Shareholders of each series such income and gains, accrued or realized, as 
the Trustees may determine, after providing for actual and accrued expenses 
and liabilities (including such reserves as the Trustees may establish) 
determined in accordance with good accounting practices. The Trustees shall 
have full discretion to determine which items shall be treated as income and 
which items as capital and their determination shall be binding upon the 
Shareholders. Distributions of each year's income of each series, if any be 
made, may be made in one or more payments, which shall be in Shares, in cash 
or otherwise and on a date or dates determined by the Trustees. At any time 
and from time to time in their discretion, the Trustees may distribute to the 
Shareholders of any one or more series as of a record date or dates 
determined by the Trustees, in Shares, in cash or otherwise, all or part of 
any gains realized on the sale or disposition of property of the series or 
otherwise, or all or part of any other principal of the Trust attributable to 
the series. Each distribution pursuant to this Section 1 shall be made 
ratably according to the number of Shares of the series or class held by the 
several Shareholders on the applicable record date thereof, provided that no 
distributions need be made on Shares purchased pursuant to orders received, 
or for which payment is made, after such time or times

                                        13
<PAGE>

as the Trustees may determine. Any such distribution paid in Shares will be 
paid at the net asset value thereof as determined in accordance with this 
Declaration of Trust.

Redemptions and Repurchases

   Section 2. Any holder of Shares of the Trust may by presentation of a 
written request, together with his certificates, if any, for such Shares, in 
proper form for transfer, at the office of the Trust, the adviser, the 
underwriter or the distributors, or at a principal office of a transfer or 
Shareholder servicers agent appointed by the Trust (as the Trustees may 
determine), redeem his Shares for the net asset value thereof determined and 
computed in accordance with the provisions of this Section 2 and the 
provisions of Section 5 of Article VI of this Declaration of Trust, less any 
redemption charge which the Trustee may establish.

    Upon receipt of such written request for redemption of Shares by the 
Trust, the adviser, the underwriter or the distributor, or the Trust's 
transfer or Shareholder services agent, such Shares shall be redeemed at the 
net asset value per share of the particular series next determined after such 
Shares are tendered in proper form for transfer to the Trust or determined as 
of such other time fixed by the Trustees as may be permitted or required by 
the 1940 Act, provided that no such tender shall be required in the case of 
Shares for which a certificate or certificates have not been issued, and in 
such case such Shares shall be redeemed at the net asset value per share of 
the particular series next determined after such demand has been received or 
determined at such other time fixed by the Trustees as may be permitted or 
required by the 1940 Act.

    The obligation of the Trust to redeem its Shares of each series as set 
forth above in this Section 2 shall be subject to the condition that, during 
any time of emergency, as hereinafter defined, such obligation may be 
suspended by the Trust by or under authority of the Trustees for such period 
or periods during such time of emergency as shall be determined by or under 
authority of the Trustees. If there is such a suspension, any Shareholder may 
withdraw any demand for redemption and any tender of Shares which has been 
received by the Trust during any such period and any tender of Shares the 
applicable net asset value of which would but for such suspension be 
calculated as of a time during such period. Upon such withdrawal, the Trust 
shall return to the Shareholder the certificate therefor, if any.  For the 
purposes of any such suspension "time of emergency" shall mean, either with 
respect to all Shares or any series of Shares, any period during which:

        a.  the New York Stock Exchange is closed other than for customary 
    weekend and holiday closings; or

                                        14

<PAGE>

        b. the Trustees or authorized officers of the Trust shall have 
    determined, in compliance with any applicable rules and regulations or 
    orders of the Commission, either that trading on the New York Stock 
    Exchange is restricted, or that an emergency exists as a result of which 
    (i) disposal by the Trust of securities owned by it is not reasonably 
    practicable or (ii) it is not reasonably practicable for the Trust fairly 
    to determine the current value of its net assets; or

        c. the suspension or postponement of such obligations is permitted by 
    order of the Commission.

    The trust may also purchase, repurchase or redeem Shares in accordance 
with such other methods, upon such other terms and subject to such other 
conditions as the Trustees may from time to time authorize at a price not 
exceeding the net asset value of such Shares in effect when the purchase or 
repurchase or any contract to purchase or repurchase is made.

Payment in Kind

    Section 3. Subject to any generally applicable limitation imposed by the 
Trustees, any payment on redemption, purchase or repurchase by the Trust of 
Shares may, if authorized by the Trustees, be made wholly or partly in kind, 
instead of in cash. Such payment in kind shall be made by distributing 
securities or other property, constituting, in the opinion of the Trustees, a 
fair representation of the various types of securities and other property 
then held by the series of Shares being redeemed, purchased or repurchased 
(but not necessarily involving a portion of each of the Series' holdings) and 
taken at their value used in determining the net asset value of the Shares in 
respect of which payment is made.

Additional Provisions Relating to Redemptions and Repurchases

    Section 4. The completion of redemption, purchase or repurchase of Shares 
shall constitute a full discharge of the Trust and the Trustees with respect 
to such Shares and the Trustees may require that any certificate or 
certificates issued by the Trust to evidence the ownership of such Shares 
shall be surrendered to the Trustees for cancellation or notation.

Determination of Net Asset Value

    Section 5. The term "net asset value" of the Shares of each series shall 
mean: (i) the value of all the assets of such series; (ii) less total 
liabilities of such series; (iii) divided by the number of Shares of such 
series outstanding, in each case at the time of each determination. The 
"number of Shares of such series outstanding" for the purpose of such 
computation shall be exclusive of any Shares of such series to be redeemed, 
purchased 

                                      15

<PAGE>

or repurchased by the Trust and not then redeemed, purchased or repurchased as 
to which the price has been determined, but shall include Shares of such 
series presented for redemption, purchase or repurchase by the Trust and not 
then redeemed, purchased or repurchased as to which the price has not been 
determined and Shares of such series the sale of which has been confirmed. 
Any fractions involved in the computation of net asset value per share shall 
be adjusted to the nearer cent unless the Trustees shall determine to adjust 
such fractions to a fraction of a cent.

    The Trustees or any officer, officers or agent of the Trust designated 
for the purpose by the Trustees shall determine the net asset value of the 
Shares of each series, and the Trustees shall fix the times as of which the 
net asset value of the Shares of each series shall be determined and shall 
fix the periods during which any such net asset value shall be effective as 
to sales, redemptions and repurchases of, and other transactions in, the 
Shares of such series, except as such times and periods for any such 
transaction may be fixed by other provisions of this Declaration of Trust or 
the By-Laws. 

    In valuing the portfolio investments of any series for determination of 
net asset value per Share of such series, securities for which market 
quotations are readily available shall be valued at prices which, in the 
opinion of the Trustees any officer, officers or agent of the Trust 
designated for the purpose by the Trustees, most nearly represent the market 
value of such securities, which may, but need not, be the most recent bid 
price obtained from one or more of the market makers for such securities; 
other securities and assets shall be valued at fair value as determined by or 
pursuant to the direction of the Trustees. Notwithstanding the foregoing, 
short-term debt obligations, commercial paper, and repurchase agreements may 
be, but need not be, valued on the basis of quoted yields for securities of 
comparable maturity, quality and type, or on the basis of amortized cost. In 
the determination of net asset value of any series, dividends receivable and 
accounts receivable for investments sold and for Shares sold shall be stated 
at the amounts to be received therefor; and income receivable accrued daily 
on bonds and notes owned shall be stated at the amount to be received. Any 
other assets shall be stated at fair value as determined by the Trustees or 
such officer, officers or agent pursuant to the Trustees' authority, except 
that no value shall be assigned to good will, furniture, lists, reports, 
statistics or other noncurrent assets other than real estate. Liabilities of 
any series for accounts payable, for investments purchased and for Shares 
tendered for redemption, purchase or repurchase by the Trust and not then 
redeemed, purchased or repurchased as to which the price has been determined 
shall be stated at the amounts payable therefor. In determining net asset 
value of any series, the person or persons making such determination on 
behalf of the Trust may include in liabilities such reserves, estimated 
accrued expenses and contingencies as such person or persons may in its,

                                      16

<PAGE>

his or their best judgment deem fair and reasonable under the circumstances. 
Any income dividends and gains distributions payable by the Trust shall be 
deducted as of such time or times on the record date therefor as the Trustees 
shall determine. 

    The manner of determining the net assets of any series or of determining 
the net asset value of the Shares of any series may from time to time be 
altered as necessary or desirable in the judgment of the Trustees to conform 
to any other method prescribed or permitted by any applicable law or 
regulation or generally accepted accounting practice.

    Determinations in accordance with Section 5 made in good faith shall be 
binding on all parties concerned.

Redemptions at the Option of the Trust

    Section 6. The Trust shall have the right at its option and at any time 
to redeem Shares at the net asset value thereof (i) if such Shares are not 
held in an account of a customer of SEI Corporation or any of its affiliated 
companies or in such other account as the Trustees may determine from time to 
time; (ii) if at such time such Shareholder owns fewer Shares than, or Shares 
having an aggregate new asset value of less than, an amount determined from 
time to time by the Trustees; (iii) to the extent that such Shareholder owns 
Shares of a particular series of Shares equal to or in excess of a percentage 
of the outstanding Shares of that series determined from time to time by the 
Trustees; or (iv) to the extent that such Shareholder owns Shares of the 
Trust representing a percentage equal to or in excess of such percentage of 
the aggregate number of outstanding Shares of the Trust or the aggregate net 
asset value of the Trust determined from time to time by the Trustees.

Dividends, Distributions, Redemptions and Repurchases

    Section 7. No dividend or distribution (including, without limitation, 
any distribution paid upon termination of the Trust or of any series) with 
respect to, nor any redemption or repurchase of, the Shares of any series 
shall be effected by the Trust other than from the assets of such series.

                                   ARTICLE VII

                           Compensation and Limitation
                             of Liability of Trustees

Compensation

    Section 1. The Trustees as such shall be entitled to reasonable 
compensation from the Trust; they may fix the amount of their compensation. 
Nothing herein shall in any way prevent

                                      17

<PAGE>

the employment of any Trustee for advisory, management, legal, accounting, 
investment banking or other services and payment for the same by the Trust.

Limitation of Liability

    Section 2.  The Trustees shall not be responsible or liable in any event 
for any neglect or wrongdoing of any officer, agent, employee, investment 
adviser or manager, principal underwriter or custodian, not shall any Trustee 
be responsible for the act or omission of any other Trustee, but nothing 
herein contained shall protect any Trustee against any liability to which he 
or she would otherwise be subject by reason of willful misfeasance, bad 
faith, gross negligence or reckless disregard of the duties involved in the 
conduct of his or her office.

    Every note, bond, contract, instrument, certificate, Share or undertaking 
and every other act or thing whatsoever executed or done by or on behalf of 
the Trust or the Trustees or any of them in connection with the Trust shall 
be conclusively deemed to have been executed or done only in or with respect 
to their or his or her capacity as Trustees or Trustee, and such Trustees or 
Trustee shall not be personally liable thereon.


                                  ARTICLE VIII
                                 Indemnification

    Subject to the exceptions and limitations contained in this Article, 
every person who is, or has been, a Trustee or officer of the Trust shall be 
indemnified by the Trust to the fullest extent permitted by law against 
liability and against all expenses reasonably incurred or paid by him in 
connection with any claim, action, suit or proceeding in which he becomes 
involved as a party or otherwise by virtue of his being or having been a 
Trustee or officer and against amounts paid or incurred by him in settlement 
thereof.

    No indemnification shall be provided hereunder to a Trustee or officer:

        (a)   against any liability to the Trust or its Shareholders by 
reason of a final adjudication by the court or other body before which the 
proceeding was brought that he engaged in willful misfeasance, bad faith, 
gross negligence or reckless disregard of the duties involved in the conduct 
of his office;

        (b)   with respect to any matter as to which he shall have been 
finally adjudicated not to have acted in good faith in the reasonable belief 
that his action was in the best interests of the Trust;


                                       18
<PAGE>

   (c) in the event of a settlement or other disposition not involving a 
final adjudication (as provided in paragraph (a) or (b)) and resulting in a 
payment by a Trustee or officer, unless there has been either a determination 
that such Trustee or officer did not engage in willful misfeasance, bad 
faith, gross negligence or reckless disregard of the duties involved in the 
conduct of his office by the court or other body approving the settlement or 
other disposition or a reasonable determination, based on a review of readily 
available facts (as opposed to a full trial-type inquiry) that he did not 
engage in such conduct:

       (i) by a vote of a majority of the Disinterested Trustees acting on the
   matter (provided that a majority of the Disinterested Trustees then in 
   office act on the matter); or

       (ii) by written opinion of independent legal counsel.

   The rights of indemnification hereinafter provided may be insured against 
by policies maintained by the Trust, shall be severable, shall not affect any 
other rights to which any Trustee or officer may now or hereafter by 
entitled, shall continue as to a person who has ceased to be such Trustee or 
officer and shall inure to the benefit of the heirs, executors and 
administrators of such a person. Nothing contained herein shall affect any 
rights to indemnification to which Trust personnel other than Trustees and 
officers may be entitled by contract or otherwise under law.

   Expenses of preparation and presentation of a defense to any claim, 
action, suit or proceeding of the character described in the next to the last 
paragraph of this Article shall be advanced by the Trust prior to final 
disposition thereof upon receipt of an undertaking by or on behalf of the 
recipient to repay such amount if it is ultimately determined that he is not 
entitled to indemnification under this Article, provided that either:

       (a) such undertaking is secured by a surety bond or some other 
   appropriate security or the Trust shall be insured against losses arising
   out of any such advances; or

       (b) a majority of the Disinterested Trustees acting on the matter 
   (provided that a majority of the Disinterested Trustees then in office act
   on the matter) or independent legal counsel in a written opinion shall 
   determine, based upon a review of the readily available facts (as opposed to
   a full trial-type inquiry), that there is reason to believe that the 
   recipient ultimately will be found entitled to indemnification.
   
                                      19


<PAGE>

    As used in this Article, a "Disinterested Trustee" is one (i) who is 
not an "interested person" of the Trust (as defined by the 1940 Act) 
(including anyone who has been exempted from being an "interested person" by 
any rule, regulation or order of the Securities and Exchange Commission), and 
(ii) against whom none of such actions, suits or other proceedings or another 
action, suit or other proceeding on the same or similar grounds is then or 
has been pending.

    As used in this Article, the words "claim," "action," "suit" or 
"proceeding" shall apply to all claims, actions, suits or proceedings (civil, 
criminal or other, including appeals), actual or threatened; and the words 
"liability" and "expenses" shall include without limitation, attorneys' fees, 
costs, judgments, amounts paid in settlement, fines, penalties and other 
liabilities.

    In case any Shareholder or former Shareholder shall be held to be 
personally liable solely by reason of his or her being or having been a 
Shareholder and not because of his or her acts or omissions or for some other 
reason, the Shareholder or former Shareholder (or his or her heirs, 
executors, administrators or other legal representatives or in the case of a 
corporation or other entity, its corporate or other general successor) shall 
be entitled to be held harmless from and indemnified against all loss and 
expense arising from such liability, but only out of the assets of the 
particular series of Shares of which he or she is or was a Shareholder.


                                  ARTICLE IX
                                Miscellaneous

Trustees, Shareholders, etc. Not Personally Liable; Notice

    Section 1.  All persons extending credit to, contracting with or having 
any claim against the Trust or a particular series of Shares shall look only 
to the assets of the Trust or the assets of that particular series of Shares 
for payment under such credit, contract or claim; and neither the 
Shareholders nor the Trustees, nor any of the Trust's officers, employees or 
agents, whether past, present or future, shall be personally liable therefor. 
Nothing in this Declaration of Trust shall protect any Trustee against any 
liability to which such Trustee would otherwise be subject by reason of 
willful misfeasance, bad faith, gross negligence or reckless disregard of the 
duties involved in the conduct of the office of Trustee.

    Every note, bond, contract, instrument, certificate or undertaking made 
or issued by the Trustees or by any officers or officer shall give notice that 
this Declaration of Trust is on file with the Secretary of the Commonwealth 
of Massachusetts and shall recite that the same was executed or made by or on 
behalf of the Trust or by them as Trustees or Trustee or as officers or

                                       20

<PAGE>

officer and not individually and that the obligations of such instrument are 
not binding upon any of them or the Shareholders individually but are binding 
only upon the assets and property of the Trust, and may contain such further 
recital as he or she or they may deem appropriate, but the omission thereof 
shall not operate to bind any Trustees or Trustee or officers or officer or 
Shareholders or Shareholder individually.

Trustees' Good Faith Action, Expert Advice; No Bond or Surety

    Section 2.  The exercise by Trustees of their powers and discretions 
hereunder shall be binding upon everyone interested. A Trustee shall be 
liable for his or her own willful misfeasance, bad faith, gross negligence or 
reckless disregard of the duties involved in the conduct of the office of 
Trustee, and for nothing else, and shall not be liable for errors of judgment 
or mistakes of fact or law. The Trustee may take advice of counsel or other 
experts with respect to the meaning and operation of this Declaration of 
Trust, and shall be under no liability for any act or omission in accordance 
with such advice or for failing to follow such advice. The Trustees shall not 
be required to give any bond as such, nor any surety if a bond is required.

Liability of Third Persons Dealing with Trustees

    Section 3.  No person dealing with the Trustees shall be bound to make 
any inquiry concerning the validity of any transaction made or to be made by 
the Trustees or to see to the application of any payments made or property 
transferred to the Trust or upon its order.

Duration and Termination of Trust

    Section 4.  Unless terminated as provided herein, the Trust shall 
continue without limitation of time. The Trust may be terminated at any time 
by vote of Shareholders holding at least a majority of the Shares entitled to 
vote or by the Trustees by written notice to the Shareholders. Any series of 
Shares may be terminated at any time by vote of Shareholders holding at least 
a majority of the Shares of such series entitled to vote or by the Trustees 
by written notice to the Shareholders of such series. 

    Upon termination of the Trust or of any one or more series of Shares, 
after paying or otherwise providing for all charges, taxes, expenses and 
liabilities, whether due or accrued or anticipated, of the Trust or of the 
particular series as may be determined by the Trustees, the Trust shall, in 
accordance with such procedures as the Trustees consider appropriate, reduce 
the remaining assets to distributable form in cash or Shares or other 
securities, or any combination thereof, and distribute the proceeds to the 
Shareholders of the series involved, ratably according to the number of 
Shares of such series held by the several Shareholders of such series on the 
date of termination.

                                         21
<PAGE>

    Section 5. The original or a copy of this instrument and of each 
amendment hereto shall be kept at the office of the Trust where it may be 
inspected by any Shareholder. A copy of this instrument and of each amendment 
hereto shall be filed by the Trust with the Secretary of the Commonwealth of 
Massachusetts and with the Boston City Clerk, as well as any other 
governmental office where such filing may from time to time be required. 
Anyone dealing with the Trust may rely on certificate by an officer of the 
Trust as to whether or not any such amendments have been made and as to any 
matters in connection with the Trust hereunder; and, with the same effect as 
if it were the original, may rely on a copy certified by an officer of the 
Trust to be a copy of this instrument or of any such amendments. In this 
instrument and in such amendment, references to this instrument, and the 
expression "herein," "hereof," and "hereunder," shall be deemed to refer to 
this instrument as amended from time to time. Headings are placed herein for 
convenience of reference only, and shall not be taken as part hereof or 
control or affect the meaning, construction or effect of this instrument. 
This instrument may be executed in any number of counterparts each of which 
shall be deemed an original.

Applicable Law

    Section 6. The Trust shall be of the type commonly called a Massachusetts 
business trust, and without limiting the provisions hereof, the Trust may 
exercise all powers which are ordinarily exercised by such a trust. This 
Declaration of Trust is to be governed by and construed and administered 
according to the laws of said Commonwealth.

Amendments

    Section 7. This Declaration of Trust may be amended at any time by an 
instrument in writing signed by a majority of the then Trustees when 
authorized to do so by a vote of Shareholders holding a majority of the 
Shares entitled to vote, except that an amendment which shall affect the 
holders of one or more series or classes of Shares but not the holders of all 
outstanding series or classes shall be authorized by vote of the Shareholders 
holding a majority of the Shares entitled to vote of each series or classes 
affected and no vote of Shareholders of a series or classes not affected 
shall be required. Amendments having the purpose of changing the name of the 
Trust or of supplying any omission, curing any ambiguity of curing, 
correcting or supplementing any defective or inconsistent provision contained 
herein shall not require authorization by Shareholder vote.

                                      22
 
<PAGE>

    IN WITNESS WHEREOF, the undersigned being the sole initial Trustee of the 
Trust, has executed this document this 16th day of October, 1986.


                                      /s/ William M. Doran
                                     ---------------------------
                                     William M. Doran
                                     2000 One Logan Square
                                     Philadelphia, Pa. 19103


COMMONWEALTH OF PENNSYLVANIA
COUNTY OF PHILADELPHIA

    I, the undersigned authority, hereby certify that the foregoing is a true 
and correct copy of the instrument presented to me by William M. Doran as the 
original of such instrument.

    WITNESS my hand and official seal, this 16th day of October, 1986.


                                     ---------------------------
                                     Notary Public


My commission expires:   Jan. 24, 1987
                      --------------------



Resident Agent:
James E. Howard, Esquire
Kirkpatrick & Lockhart
Exchange Place, 53 State Street
Boston, MA 02109
(617) 227-6000


                                           23


<PAGE>

                                       BY-LAWS

                                          OF

                           SEI INSTITUTIONAL MANAGED TRUST 


                       SECTION 1.  AGREEMENT AND DECLARATION OF
                                   TRUST AND PRINCIPAL OFFICE

1.1  AGREEMENT AND DECLARATION OF TRUST.  These By-Laws shall be subject to the
Agreement and Declaration of Trust, as from time to time in effect (the
"Declaration of Trust"), of SEI INSTITUTIONAL MANAGED TRUST, the Massachusetts
business trust established by the Declaration of Trust (the "Trust").

1.2  PRINCIPAL OFFICE OF THE TRUST.  The principal office of the Trust shall be
located in Boston, Massachusetts.


                              SECTION 2.   SHAREHOLDERS

2.1  MEETINGS.  A meeting of the shareholders of the Trust or by any one or more
series of shares may be called at any time by the Trustees, by the president or,
if the Trustees and the president shall fail to call any meeting of shareholders
for a period of 30 days after written application of one or more shareholders
who at least 10% of all outstanding shares of the Trust, if shareholders of all
series are required under Declaration of Trust to vote the aggregate and not by
individual series at such meeting, or of any series, if shareholders of such
series are entitled under the Declaration of Trust to vote by individual series
at such meeting, then such shareholders may call such meeting.  If the meeting
is a meeting of the shareholders of one or more series of shares, but not a
meeting of all shareholders of the Trust, then only the shareholders of such one
or more series shall be entitled to notice of and to vote at the meeting.  Each
call of a meeting shall state the place, date, hour and purpose of the meeting. 

2.2  SPECIAL MEETINGS.  A special meeting of the shareholders may be called at
any time by the Trustees, by the president or, if the Trustees and the president
shall fail to call any meeting of shareholders for a period of 30 days after
written application of one or more shareholders who hold at least 25% of all
shares issued and outstanding and entitled to vote at the meeting, then such
shareholders may call such meeting.  Each call of a meeting shall state the
place, date, hour and purposes of the meeting.

2.3  PLACE OF MEETINGS.  All meetings of the shareholders shall be held at the
principal office of the Trust, or, to the extent permitted by the Declaration of
Trust, at such other place within the United States as shall be designated by
the Trustees or the president of the Trust.

<PAGE>

2.4  NOTICE OF MEETINGS.  A written notice of each meeting of shareholders,
stating the place, date and hour and the purposes of the meeting, shall be given
at least seven days before the meeting to each shareholder entitled to vote
thereat by leaving such notice with him or at his residence or usual place of
business or by mailing it, postage prepaid, and addressed to such shareholder at
his address as it appears in the records of the Trust.  Such notice shall be
given by the secretary or an assistant secretary or by an officer designated by
the Trustees.  No notice of any meeting of shareholders need be given to a
shareholder if a written waiver of notice, executed before or after the meeting
by such shareholder or his attorney thereunto duly authorized, is filed with the
records of the meeting.

2.5  BALLOTS.  No ballot shall be required for any election unless requested by
a shareholder present or represented at the meeting and entitled to vote in the
election.

2.6  PROXIES.  Shareholders entitled to vote may vote either in person or by
proxy in writing dated not more than six months before the meeting named
therein, which proxies shall be filed with the secretary or other person
responsible to record the proceedings of the meeting before being voted.  Unless
otherwise specifically limited by their terms, such proxies shall entitle the
holders thereof to vote at any adjournment of such meeting but shall not be
valid after the final adjournment of such meeting.


                                SECTION 3.   TRUSTEES

3.1  COMMITTEES AND ADVISORY BOARD.  The Trustees may appoint from their number
an executive committee and other committees.  Except as the Trustees may
otherwise determine, any such committee may make rules for conduct of its
business.  The Trustees may appoint an advisory board to consist of not less
than two nor more than five members.  The members of the advisory board shall be
compensated in such manner as the Trustees may determine and shall confer with
and advise the Trustees regarding the investments and other affairs of the
Trust.  Each member of the advisory board shall hold office until the first
meeting of the Trustees following the next annual meeting of the shareholders
and until his successor is elected and qualified, or until he sooner dies,
resigns, is removed, or becomes disqualified, or until the advisory board is
sooner abolished by the Trustees.

3.2  REGULAR MEETINGS.  Regular meetings of the Trustees may be held without
call or notice at such places and at such times as the Trustees may from time to
time determine, provided that notice of the first regular meeting following any
such determination shall be given to absent Trustees.  A regular meeting of the
Trustees may be held without call or notice immediately after and at the same
place as the annual meeting of the shareholders.

3.3  SPECIAL MEETINGS.  Special meetings of the Trustees may be held at any time
and at any place designated in the call of the meetings, when called by the
Chairman of the Board, the president or the treasurer or by two or more
Trustees, sufficient notice thereof being given to each Trustee by the secretary
or an assistant secretary or by the officer or one of the Trustees calling the
meeting.


                                         -2-
<PAGE>

3.4  NOTICE.  It shall be sufficient notice to a Trustee to send notice by mail
at least forty-eight hours or by telegram at least twenty-four hours before the
meeting addressed to the Trustee at his or her usual or last known business or
residence address or to give notice to him or her in person or by telephone at
least twenty-four hours before the meeting.  Notice of a meeting need not be
given to any Trustee if a written waiver of notice, executed by him or her
before or after the meeting, is filed with the records of the meeting, or to any
Trustee who attends the meeting without protesting prior thereto or at its
commencement the lack of notice to him or her.  Neither notice of a meeting nor
a waiver of a notice need specify the purposes of the meeting.

3.5  QUORUM.  At any meeting of the Trustees one-third of the Trustees then in
office shall constitute a quorum; provided, however, a quorum shall not be less
than two.  Any meeting may be adjourned from time to time by a majority of the
votes cast upon the question, whether or not a quorum is present, and the
meeting may be held as adjourned without further notice.


                           SECTION 4.   OFFICERS AND AGENTS

4.1  ENUMERATION; QUALIFICATION.  The officers of the Trust shall be a
president, a treasurer, a secretary and such other officers, if any, as the
Trustees from time to time may in their discretion elect or appoint.  The Trust
may also have such Agents, if any, as the Trustees from time to time may in
their discretion appoint.  Any officer may be but none need be a Trustee or
shareholder.  Any two or more offices may be held by the same person.

4.2  POWERS.  Subject to the other provisions of these By-Laws, each officer
shall have, in addition to the duties and powers herein and in the Declaration
of Trust set forth, such duties and powers as are commonly incident to his or
her office as if the Trust were organized as a Massachusetts business
corporation and such other duties and powers as the Trustees may from time to
time designate.

4.3  ELECTION.  The president, the treasurer and the secretary shall be elected
annually by the Trustees at their first meeting following the annual meeting of
the shareholders.  Other officers, if any, may be elected or appointed by the
Trustees at said meeting or at any other time.

4.4  TENURE.  The president, the treasurer and the secretary shall hold office
until the first meeting of Trustees following the next annual meeting of the
shareholders and until their respective successors are chosen and qualified, or
in each case until he or she sooner dies, resigns, is removed or becomes
disqualified.  Each agent shall retain his or her authority at the pleasure of
the Trustees.

4.5  PRESIDENT AND VICE PRESIDENTS.  The president shall be the chief executive
officer of the Trust.  The president shall, subject to the control of the
Trustees, have general charge and supervision of the business of the Trust.  Any
vice president shall have such duties and powers as shall be designated from
time to time by the Trustees.


                                         -3-
<PAGE>

4.6  CHAIRMAN OF THE BOARD.  If a Chairman of the Board of Trustees is elected,
he shall have the duties and powers specified in these By-Laws and, except as
the Trustees shall otherwise determine, preside at all meetings of the
shareholders and of the Trustees at which he or she is present and have such
other duties and powers as may be determined by the Trustees.

4.7  TREASURER AND CONTROLLER.  The treasurer shall be the chief financial
officer of the Trust and subject to any arrangement made by the Trustees with a
bank or trust company or other organization as custodian or transfer or
shareholder services agent, shall be in charge of its valuable papers and shall
have such other duties and powers as may be designated from time to time by the
Trustees or by the president.  If at any time there shall be no controller, the
treasurer shall also be the chief accounting officer of the Trust and shall have
the duties and powers prescribed herein for the controller.  Any assistant
treasurer shall have such duties and powers as shall be designated from time to
time by the Trustees.

The controller, if any be elected, shall be the chief accounting officer of the
Trust and shall be in charge of its books of account and accounting records. 
The controller shall be responsible for preparation of financial statements of
the Trust and shall have such other duties and powers as may be designated from
time to time by the Trustees or the president.

4.8  SECRETARY AND ASSISTANT SECRETARIES.  The secretary shall record all
proceedings of the shareholders and the Trustees in books to be kept therefor,
which books shall be kept at the principal office of the Trust.  In the absence
of the secretary from any meeting of shareholders or Trustees, an assistant
secretary, or if there be none or he or she is absent, a temporary clerk chosen
at the meeting shall record the proceedings thereof in the aforesaid books.


                        SECTION 5.   RESIGNATION AND REMOVALS

Any Trustee, officer or advisory board member may resign at any time by
delivering his or her resignation in writing to the Chairman of the Board, the
president, the treasurer or the secretary or to a meeting of the Trustees.  The
Trustees may remove any officer elected by them with or without cause by a vote
of a majority of the Trustees then in office.  Except to the extent expressly
provided in a written agreement with the Trust, no Trustee, officer, or advisory
board member resigning, and no officer or advisory board member removed shall
have any right to any compensation for any period following his or her
resignation or removal, or any right to damages on account of such removal.


                                SECTION 6.   VACANCIES

A vacancy in any office may be filled at any time.  Each successor shall hold
office for the unexpired term, and in the case of the president, the treasurer
and the secretary, until his or her successor is chosen and qualified, or in
each case until he or she sooner dies, resigns, is removed or becomes
disqualified.


                                         -4-
<PAGE>

                                 SECTION 7.   SHARES

7.1  SHARE CERTIFICATES.  No certificates certifying the ownership of shares
shall be issued except as the Trustees may otherwise authorize.  In the event
that the Trustees authorize the issuance of share certificates, subject to the
provisions of Section 7.3, each shareholder shall be entitled to a certificate
stating the number of shares owned by him or her, in such form as shall be
prescribed from time to time by the Trustees.  Such certificate shall be signed
by the president or a vice president and by the treasurer or an assistant
treasurer.  Such signatures may be facsimiles if the certificate is signed by a
transfer or shareholder services agent or by a registrar, other than a Trustee,
officer or employee of the Trust.  In case any officer who has signed or whose
facsimile signature has been placed on such certificate shall have ceased to be
such officer before such certificate is issued, it may be issued by the Trust
with the same effect as if he or she were such officer at the time of its issue.

In lieu of issuing certificates for shares, the Trustees or the transfer or
shareholder services agent may either issue receipts therefor or may keep
accounts upon the books of the Trust for the record holders of such shares, who
shall in either case be deemed, for all purposes hereunder, to be the holders of
certificates for such shares as if they had accepted such certificates and shall
be held to have expressly assented and agreed to the terms hereof.

7.2  LOSS OF CERTIFICATES.  In the case of the alleged loss or destruction or
the mutilation of a share certificate, a duplicate certificate may be issued in
place thereof, upon such terms as the Trustees may prescribe.

7.3  DISCONTINUANCE OF ISSUANCE OF CERTIFICATES.  The Trustees may at any time
discontinue the issuance of share certificates and may, by written notice to
each shareholder, require the surrender of share certificates to the Trust for
cancellation.  Such surrender and cancellation shall not affect the ownership of
shares in the Trust.


                               SECTION 8.   RECORD DATE

The Trustees may fix in advance a time, which shall not be more than 60 days
before the date of any meeting of shareholders or the date for the payment of
any dividend or making of any other distribution to shareholders, as the record
date for determining the shareholders having the right to notice and to vote at
such meeting and any adjournment thereof or the right to receive such dividend
or distribution, and in such case only shareholders of record on such record
date shall have such right, notwithstanding any transfer of shares on the books
of the Trust after the record date.


                                         -5-
<PAGE>

                                  SECTION 9.   SEAL

The seal of the Trust shall, subject to alteration by the Trustees, consist of a
flat-faced circular die with the word "Massachusetts", together with the name of
the Trust and the year of its organization, cut or engraved thereon; but, unless
otherwise required by the Trustees, the seal shall not be necessary to be placed
on, and its absence shall not impair the validity of, any document, instrument
or other paper executed and delivered by or on behalf of the Trust.


                          SECTION 10.   EXECUTION OF PAPERS

Except as the Trustees may generally or in particular cases authorize the
execution thereof in some other manner, all deeds, leases, transfers, contracts,
bonds, notes, checks, drafts and other obligations made, accepted or endorsed by
the Trust shall be signed, and any transfers of securities standing in the name
of the Trust shall be executed, by the president or by one of the vice
presidents or by the treasurer or by whomsoever else shall be designated for
that purpose by the vote of the Trustees and need not bear the seal of the
Trust.


                              SECTION 11.   FISCAL YEAR

The fiscal year of the Trust shall end on such date in each year as the Trustees
shall from time to time determine.


                       SECTION 12.   PROVISIONS RELATING TO THE
                                     CONDUCT OF THE TRUST'S BUSINESS

12.1 DEALINGS WITH AFFILIATES.  No officer, Trustee or agent of the Trust and no
officer, director or agent of any investment advisor shall deal for or on behalf
of the Trust with himself as principal or agent, or with any partnership,
association or corporation in which he has a material financial interest;
provided that the foregoing provisions shall not prevent (a) officers and
Trustees of the Trust from buying, holding or selling shares in the Trust, or
from being partners, officers or directors of or financially interested in any
investment advisor to the Trust or in any corporation, firm or association which
may at any time have a distributor's or principal underwriter's contract with
the Trust; (b) purchases or sales of securities or other property if such
transaction is permitted by or is exempt or exempted from the provisions of the
Investment Company Act of 1940 or any Rule or Regulation thereunder and if such
transaction does not involve any commission or profit to any security dealer who
is, or one or more of whose partners, shareholders, officers or directors is, an
officer or Trustees of the Trust or an officer or director of the investment
advisor, manager or principal underwriter of the Trust; (c) employment of legal
counsel, registrar, transfer agent, shareholder services, dividend disbursing
agent or custodian who is, or has a partner, stockholder, officer or director
who is, an officer or Trustee of the Trust; (d) sharing statistical, research
and management expenses, including 


                                         -6-
<PAGE>

office hire and services, with any other company in which an officer or Trustee
of the Trust is an officer or director or financially interested.

12.2 DEALING IN SECURITIES OF THE TRUST.  The Trust, the investment advisor, any
corporation, firm or association which may at any time have an exclusive
distributor's or principal underwriter's contract with the Trust (the
"distributor") and the officers and Trustees of the Trust and officers and
directors of every investment advisor and distributor, shall not take long or
short positions in the securities of the Trust, except that:

     (a)  the distributor may place orders with the Trust for its shares
     equivalent to orders received by the distributor;

     (b)  shares of the Trust may be purchased at not less than net asset value
     for investment by the investment advisor and by officers and directors of
     the distributor, investment advisor, or the Trust and by any trust,
     pension, profit-sharing or other benefit plan for such persons, no such
     purchase to be in contravention of any applicable state or federal
     requirement.

12.3 LIMITATION ON CERTAIN LOANS.  The Trust shall not make loans to any
officer, Trustee or employee of the Trust or any investment advisor or
distributor or their respective officers, directors or partners or employees.

12.4 CUSTODIAN.  All securities and cash owned by the Trust shall be maintained
in the custody of one or more banks or trust companies having (according to its
last published report) not less than two million dollars ($2,000,000) aggregate
capital, surplus and undivided profits (any such bank or trust company is
hereinafter referred to as the "custodian"); provided, however, the custodian
may deliver securities as collateral on borrowings effected by the Trust,
provided, that such delivery shall be conditioned upon receipt of the borrowed
funds by the custodian except where additional collateral is being pledged on an
outstanding loan and the custodian may deliver securities lent by the Trust
against receipt of initial collateral specified by the Trust.  Subject to such
rules, regulations and orders, if any, as the Securities and Exchange Commission
may adopt, the Trust may, or may permit any custodian to, deposit all or any
part of the securities owned by the Trust in a system for the central handling
of securities operated by the Federal Reserve Banks, or established by a
national securities exchange or national securities association registered with
said Commission under the Securities Exchange Act of 1934, or such other person
as may be permitted by said Commission, pursuant to which system all securities
of any particular class or series of any issue deposited with the system are
treated as fungible and may be transferred or pledged by bookkeeping entry,
without physical delivery of such securities.

The Trust shall upon the resignation or inability to serve of its custodian or
upon change of the custodian:

     (a)  in the case of such resignation or inability to serve use its best
     efforts to obtain a successor custodian;


                                         -7-
<PAGE>

     (b)  require that the case and securities owned by this corporation be
     delivered directly to the successor custodian; and

     (c)  in the event that no successor custodian can be found, submit to the
     shareholders, before permitting delivery of the case and securities owned
     by this Trust otherwise than to a successor custodian, the question whether
     or not this Trust shall be liquidated or shall function without a
     custodian.

12.5 REPORTS TO SHAREHOLDERS; DISTRIBUTIONS FROM REALIZED GAINS.  The Trust
shall send to each shareholder of record at least annually a statement of the
condition of the Trust and of the results of its operation, containing all
information required by applicable laws or regulations.


                               SECTION 13.   AMENDMENTS

These By-Laws may be amended or repealed, in whole or in part, by a majority of
the Trustees then in office at any meeting of the Trustees, or by one or more
writings signed by such majority.


                                         -8-

<PAGE>

                                                              Exhibit 99.B(5)(m)

                       INVESTMENT SUB-ADVISORY AGREEMENT
                        SEI INSTITUTIONAL MANAGED TRUST

    AGREEMENT made this 16th day of December, 1994, by and among SEI 
Financial Management Corporation, (the "Adviser") and Mellon Equity 
Associates (the "Sub-Adviser").

    WHEREAS, SEI Institutional Managed Trust, a Massachusetts business trust 
(the "Trust") is registered as an open-end management investment company 
under the Investment Company Act of 1940, as amended (the "1940 Act"); and

    WHEREAS, the Adviser has entered into an Investment Advisory Agreement 
dated December 16th, 1994 (the "Advisory Agreement") with the Trust, pursuant 
to which the Adviser will act as investment adviser to the Large Cap Value 
Portfolio (the "Portfolio"), which is a series of the Trust; and

    WHEREAS, the Adviser, with the approval of the Trust, desires to retain 
the Sub-Adviser to provide investment advisory services to the Adviser in 
connection with the management of the Portfolio, and the Sub-Adviser is 
willing to render such investment advisory services.

    NOW, THEREFORE, the parties hereto agree as follows:

1.  Duties of the Sub-Adviser. Subject to supervision by the Adviser and 
    the Trust's Board of Trustees, the Sub-Adviser shall manage the 
    investment operations of the Portfolio and the composition of the 
    Portfolio, including the purchase, retention and disposition of 
    securities and other assets, in accordance with the Portfolio's 
    investment objectives, policies and restrictions as stated in the 
    Portfolio's prospectus and statement of additional information, as 
    currently in effect and as amended or supplemented from time to time 
    (referred to collectively as the "Prospectus"), and subject to the 
    following:

    (a) The Sub-Adviser shall provide supervision of the Portfolio's 
    investments and determine from time to time what investments and 
    securities will be purchased, retained or sold by the Portfolio, and what 
    portion of the assets will be invested or held uninvested in cash.

    (b) In the performance of its duties and obligations under this 
    Agreement, the Sub-Adviser shall act in conformity with the Trust's 
    Declaration of Trust (as defined herein) and the Prospectus and with the 
    instructions and directions of the Adviser and of the Board of Trustees 
    of the Trust and will conform to and comply with the requirements of the 
    1940 Act, the Internal Revenue Code of 1986, and all other applicable 
    federal and state laws and regulations, as each is amended from time to 
    time.

    (c) The Sub-Adviser shall determine the securities to be purchased or 
    sold by the Portfolio and will place orders with or through such persons, 
    brokers or dealers to carry out the policy with respect to brokerage set 
    forth in the Portfolio's Registration Statement, and Prospectus or as the 
    Board of Trustees or the Adviser may direct from time to time, in 
    conformity with federal securities laws. In executing Portfolio 
    transactions and selecting brokers or dealers, the Sub-Adviser will use 
    its best efforts to seek on behalf of the Portfolio the best overall 
    terms available. In assessing the best overall terms available for any 
    transaction, the Sub-Adviser shall consider all factors that it deems 
    relevant, which may include the breadth of the market in the security, 
    the price of the security, the financial condition and execution 
    capability of the broker or dealer, and the reasonableness of the 
    commission, if any, both for the specific transaction and on a continuing

  
<PAGE>

    basis. In evaluating the best overall terms available, and in selecting 
    the broker-dealer to execute a particular transaction the Sub-Adviser may 
    also consider the brokerage and research services (as those terms are 
    defined in Section 28(e) of the Securities Exchange Act of 1934) provided 
    to the Portfolio and/or other accounts over which the Sub-Adviser or an 
    affiliate of the Sub-Adviser may exercise investment discretion. The 
    Sub-Adviser is authorized, subject to the prior approval of the Trust's 
    Board of Trustees, to pay to a broker or dealer who provides such 
    brokerage and research services a commission for executing a portfolio 
    transaction for any of the Portfolios which is in excess of the amount of 
    commission another broker or dealer would have charged for effecting that 
    transaction if, but only if, the Sub-Adviser determines in good faith that 
    such commission was reasonable in relation to the value of the brokerage 
    and research services provided by such broker or dealer--viewed in terms 
    of that particular transaction or terms of the overall responsibilities of 
    the Sub-Adviser to the Portfolio. In addition, the Sub-Adviser is 
    authorized to allocate purchase and sale orders for portfolio securities 
    to brokers or dealers (including brokers and dealers that are affiliated 
    with the Sub-Adviser or the Trust's principal underwriter) to take into 
    account the sale of shares of the Trust if the Sub-Adviser believes that 
    the quality of the transaction and the commission are comparable to what 
    they would be with other qualified firms. In no instance, however, will the
    Portfolio's securities be purchased from or sold to the Sub-Adviser, the 
    Trust's principal underwriter, or any affiliated person of either the 
    Trust, the Sub-Adviser or the principal underwriter, acting as principal 
    in the transaction, except to the extent permitted by the Securities and 
    Exchange Commission and the 1940 Act.

    (d)  The Sub-Adviser shall maintain all books and records with respect to 
    the Portfolio's portfolio transactions required by subparagraphs (b)(5), 
    (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the 
    1940 Act and shall render to the Adviser or Board of Trustees such 
    periodic and special reports as the Adviser or Board of Trustees may 
    reasonably request.

    The Sub-Adviser shall keep the Portfolio's books and records required to 
    be maintained by the Sub-Adviser of this Agreement and shall timely 
    furnish to the Adviser all information relating to the Sub-Adviser's 
    services under this Agreement needed by the Adviser to keep the other 
    books and records of the Portfolio required by Rule 31a-1 under the 1940 
    Act. The Sub-Adviser shall also furnish to the Adviser any other 
    information that is required to be filed by the Adviser or the Trust with 
    the Securities and Exchange Commission ("SEC") or sent to shareholders 
    under the 1940 Act (including the rules adopted thereunder) or any 
    exemptive or other relief that the Adviser or the Trust obtains from the 
    SEC. The Sub-Adviser agrees that all records that it maintains on behalf 
    of the Portfolio are property of the Portfolio and the Sub-Adviser will 
    surrender promptly to the Portfolio any of such records upon the 
    Portfolio's request; provided, however, that the Sub-Adviser may retain a 
    copy of such records. In addition, for the duration of this Agreement, 
    the Sub-Adviser shall preserve for the periods prescribed by Rule 31a-2 
    under the 1940 Act any such records as are required to be maintained by 
    it pursuant to this Agreement, and shall transfer said records to any 
    successor Sub-Adviser upon the termination of this Agreement (or, if 
    there is no successor Sub-Adviser, to the Adviser).

    (e)  The Sub-Adviser shall provide the Portfolio's custodian on each 
    business day with information relating to all transactions concerning the 
    Portfolio's assets and shall provide the Adviser with such information 
    upon request of the Adviser.

    (f)  The investment management services provided by the Sub-Adviser under 
    this Agreement are not to be deemed exclusive and the Sub-Adviser shall 
    be free to render similar services to others, as long as such services 
    do not impair the services rendered to the Adviser or the Trust.


                                      2



<PAGE>

    (g) The Sub-Adviser shall promptly notify the Adviser of any financial 
    condition that is likely to impair the Sub-Adviser's ability to fulfill 
    its commitment under this Agreement.
    
    Services to be furnished by the Sub-Adviser under this Agreement may be 
    furnished through the medium of any of the Sub-Adviser's partners, 
    officers or employees.
    
2.  Duties of the Adviser. The Adviser shall continue to have responsibility 
    for all services to be provided to the Portfolio pursuant to the 
    Advisory Agreement and shall oversee and review the Sub-Adviser's 
    performance of its duties under this Agreement; provided, however, that 
    nothing herein shall be construed to relieve the Sub-Adviser of 
    responsibility for compliance with the Portfolio's investment 
    objectives, policies, and restrictions, as provided in Section 1 
    hereunder. The Adviser hereby covenants to promptly provide the 
    Sub-Adviser with copies of any amendment or supplement to the 
    Portfolio's Registration Statement as well as all applicable trading 
    guidelines and procedures established for the Portfolio.
    
3.  Delivery of Documents. The Adviser has furnished the Sub-Adviser with 
    copies properly certified or authenticated of each of the following 
    documents:
    
    (a) The Trust's Agreement and Declaration of Trust, as filed with the 
    Secretary of State of the Commonwealth of Massachusetts (such Agreement 
    and Declaration of Trust, as in effect on the date of this Agreement and 
    as amended from time to time, herein called the "Declaration of Trust");
    
    (b) By-Laws of the Trust (such By-Laws, as in effect on the date of this 
    Agreement and as amended form time to time, are herein called "By-Laws");
    
    (c) Prospectus(es) of the Portfolio.
    
    (d) The Adviser hereby covenants to promptly furnish the Sub-Adviser 
    with copies of any amendments or supplements to such documents.
    
4.  Compensation to the Sub-Adviser. For the services to be provided by the 
    Sub-Adviser pursuant to this Agreement, the Adviser will pay the 
    Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation 
    therefor, a sub-advisory fee at the rate specified in Schedule A which is 
    attached hereto and made part of this Agreement. The fee will be 
    calculated based on the average monthly market value of investments 
    under management and will be paid to the Sub-Adviser monthly. The 
    Sub-Adviser may, in its discretion and from time to time, waive a 
    portion of its fee.
    
5.  Limitations of Liability of the Sub-Adviser. The Sub-Adviser shall not 
    be liable for any error of judgment or for any loss suffered by the 
    Adviser in connection with performance of its obligations under this 
    Agreement, except a loss resulting from a breach of fiduciary duty with 
    respect to the receipt of compensation for services (in which case any 
    award of damages shall be limited to the period and the amount set forth 
    in Section 36(b)(3) of the 1940 Act), or a loss resulting from willful 
    misfeasance, bad faith or negligence on the Sub-Adviser's part in the 
    performance of its duties or from reckless disregard of its obligations 
    and duties under this Agreement, except as may otherwise be provided 
    under provisions of applicable state law which cannot be waived or 
    modified hereby.
    
                                       3
<PAGE>

6.  Reports.  During the term of this Agreement, the Adviser agrees to furnish 
    the Sub-Adviser at its principal office all prospectuses, proxy statements,
    reports to stockholders, sales literature or other materials prepared for 
    distribution to stockholders of the Portfolios, the Trust or the public that
    refer to the Sub-Adviser or its clients in any way prior to use thereof and
    not to use material if the Sub-Adviser reasonably objects in writing within
    five business days (or such other period as may be mutually agreed) after 
    receipt thereof. The Sub-Adviser's right to object to such materials is 
    limited to the portions of such materials that expressly relate to the 
    Sub-Adviser, its services and its clients. The Adviser agrees to use its 
    reasonable best efforts to ensure that materials prepared by its employees 
    or agents or its affiliates that refer to the Sub-Adviser or its clients in
    any way are consistent with those materials previously approved by the 
    Sub-Adviser as referenced in the first sentence of this paragraph. Sales 
    literature may be furnished to the Sub-Adviser by first class or overnight
    mail, facsimile transmission equipment or hand delivery.

7.  Indemnification.  The Sub-Adviser shall indemnify and hold harmless the 
    Adviser from and against any and all claims, losses, liabilities or damages
    (including reasonable attorney's fees and other related expenses) howsoever
    arising from or in connection with the performance by the Sub-Adviser of its
    duties under this Agreement; provided, however, that the Sub-Adviser shall 
    not be required to indemnify or otherwise hold the Adviser harmless under 
    this Section 7 where the claim against, or the loss, liability or damage 
    experienced by the Adviser, is caused by or is otherwise directly related to
    the Adviser's own willful misfeasance, bad faith or negligence, or to the 
    reckless disregard of its duties under this Agreement.

    The Adviser shall indemnify and hold harmless the Sub-Adviser from and 
    against any and all claims, losses, liabilities or damages (including 
    reasonable attorney's fees and other related expenses) howsoever arising 
    from or in connection with the performance by the Adviser of its duties 
    under this Agreement: provided, however, that the Adviser shall not be 
    required to indemnify or otherwise hold the Sub-Adviser harmless under 
    this Section 7 where the claim against, or the loss, liability or damage 
    experienced by the Sub-Adviser, is caused by or is otherwise directly 
    related to the Sub-Adviser's own willful misfeasance, bad faith or 
    negligence, or to the reckless disregard of its duties under this 
    Agreement. 

8.  Duration and Termination.  This Agreement shall become effective upon its 
    approval by the Trust's Board of Trustees and by the vote of a majority of 
    the outstanding voting securities of the Portfolio; provided, however, that
    at any time the Adviser shall have obtained exemptive relief from the SEC 
    permitting it to engage a Sub-Adviser without first obtaining approval of 
    the Agreement from a majority of the outstanding voting securities of the 
    Portfolio involved, the Agreement shall become effective upon its approval 
    by the Trust's Board of Trustees. Any Sub-Adviser so selected and approved 
    shall be without the protection accorded by shareholder approval of an 
    investment adviser's receipt of compensation under Section 36(b) of the 1940
    Act.

    This Agreement shall continue in effect for a period of more than two 
    years from the date hereof only so long as continuance is specifically 
    approved at least annually in conformance with the 1940 Act; provided, 
    however, that this Agreement may be terminated with respect to the Portfolio
    (a) by the Portfolio at any time, without the payment of any penalty, by the
    vote of a majority of Trustees of the Trust or by the vote of a majority of
    the outstanding voting securities of such Portfolio, (b) by the Adviser at 
    any time, without the payment of any penalty, on not more than 60 days' nor
    less than 30 days' written notice to the other party, or (c) by the 
    Sub-Adviser at any time, without the payment of any penalty, on 90 days' 
    written notice to the other party. This Agreement shall terminate 
    automatically and immediately in the event of its assignment, or in the
    event of a 


                                     4

<PAGE>

    termination of the Adviser's agreement with the Trust. As used in this 
    Section 8, the terms "assignment" and "vote of a majority of the 
    outstanding voting securities" shall have the respective meanings set 
    forth in the 1940 Act and the rules and regulations thereunder, subject 
    to such exceptions as may be granted by the Commission under the 1940 Act.

9.  Governing Law. This Agreement shall be governed by the internal laws of the 
    Commonwealth of Massachusetts, without regard to conflict of law 
    principles; provided, however, that nothing herein shall be construed as 
    being inconsistent with the 1940 Act.

10. Severability. Should any part of this Agreement be held invalid by a 
    court decision, statute, rule or otherwise, the remainder of this 
    Agreement shall not be affected thereby. This Agreement shall be binding 
    upon and shall inure to the benefit of the parties hereto and their 
    respective successors.

11. Notice. Any notice, advice or report to be given pursuant to this 
    Agreement shall be deemed sufficient if delivered or mailed by 
    registered, certified or overnight mail, postage prepaid addressed by the 
    party giving notice to the other party at the last address furnished by 
    the other party:
 
    To the Adviser at:               SEI Financial Management Corporation
                                     680 East Swedesford Road
                                     Wayne, PA 19087
                                     Attention: Legal Department

    To the Sub-Adviser at:           Mellon Equity Associates
                                     500 Grant Street, Suite 3700
                                     Pittsburgh, PA 15258
                                     Attention: President

12. Entire Agreement. This Agreement embodies the entire agreement and 
    understanding between the parties hereto, and supersedes all prior 
    agreements and understandings relating to this Agreement's subject 
    matter. This Agreement may be executed in any number of counterparts, 
    each of which shall be deemed to be an original, but such counterparts 
    shall, together, constitute only one instrument.

Where the effect of a requirement of the 1940 Act reflected in any provision 
of this Agreement is altered by a rule, regulation or order of the 
Commission, whether of special or general application, such provision shall 
be deemed to incorporate the effect of such rule, regulation or order.

    IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be 
executed by their officers designated below as of the day and year first 
written above.

SEI Financial Management             Mellon Equity Associates
  Corporation

By: /s/ Signature Appears Here               By: /s/ Signature Appears Here
   ---------------------------                 ----------------------------
Title: Vice President                Title: President


                                       5


<PAGE>

                                    Schedule A
                                      to the
                               Sub-Advisory Agreement
                                      between
                          SEI Financial Management Corporation
                                        and
                                Mellon Equity Associates

Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at 
an annual rate as follows:

Large Cap Value Portfolio                 


                                       6

<PAGE>

                          INVESTMENT SUB-ADVISORY AGREEMENT
                           SEI INSTITUTIONAL MANAGED TRUST

     AGREEMENT made this 20th day of September, 1996, between SEI Investments
Management  Corporation, (the "Adviser") and Furman Selz Capital Management, LLC
(the "Sub-Adviser"). 

     WHEREAS, SEI Institutional Managed Trust, a Massachusetts business trust
(the "Trust"), is registered as an open-end management investment company under
the Investment Company Act of 1940, as amended (the "1940  Act"); and

     WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated December 16, 1994  (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Small Cap Growth
Portfolio (the "Portfolio"), which is a series of the Trust; and

     WHEREAS, the Adviser, with the approval of the Trust, desires to retain the
Sub-Adviser to provide investment advisory services to the Adviser in connection
with the management of the Portfolio, and the Sub-Adviser is willing to render
such investment advisory services.

     NOW, THEREFORE, the parties hereto agree as follows:

1.   DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and the
     Trust's Board of Trustees, the Sub-Adviser shall manage all of the
     securities and other assets of the Portfolio entrusted to it hereunder (the
     "Assets"), including the purchase, retention and disposition of the Assets,
     in accordance with the Portfolio's investment objectives, policies and
     restrictions as stated in the Portfolio's prospectus and statement of
     additional information,  as currently in effect and as amended or
     supplemented from time to time (referred to collectively as the
     "Prospectus"), and subject to the following:

(a)  The Sub-Adviser shall, in consultation with and subject to the direction of
     the Adviser, determine from time to time what Assets will be purchased,
     retained or sold by the Portfolio, and what portion of the Assets will be
     invested or held uninvested in cash.
     
(b)  In the performance of its duties and obligations under this Agreement, the
     Sub-Adviser shall act in conformity with the Trust's Declaration of Trust
     (as defined herein) and the Prospectus and with the instructions and
     directions of the Adviser and of the Board of Trustees of the Trust and
     will conform to and comply with the requirements of the 1940 Act, the
     Internal Revenue Code of 1986, and all other applicable federal and state
     laws and regulations, as each is amended from time to time.
     
(c)  The Sub-Adviser shall determine the Assets to be purchased or sold by the
     Portfolio as provided in subparagraph (a) and will place orders with or
     through such persons, brokers or dealers to carry out the policy with
     respect to brokerage set forth in the Portfolio's Registration Statement
     (as defined herein) and Prospectus or as the Board of Trustees or the
     Adviser may direct from time to time, in conformity with federal securities
     laws.  In executing Portfolio transactions and selecting brokers or
     dealers, the Sub-Adviser will use its best efforts to seek on behalf of the
     Portfolio the best overall terms available.  In assessing the best overall
     terms available for any transaction, the Sub-Adviser shall consider all
     factors that it deems relevant, including the breadth of the market in the
     security, the price of the security, the financial condition and execution
     capability of the broker or dealer, and the reasonableness of the
     commission, if any, both for the specific transaction and on a continuing
     basis.  In evaluating the best overall terms available, and in selecting
     the broker-dealer to execute a particular transaction, the Sub-Adviser may
     also consider the brokerage and research services provided (as those terms
     are defined in Section 28(e) of the Securities Exchange Act of 1934). 
     Consistent with any guidelines established by the Board of Trustees of the
     Trust, the Sub-Adviser is authorized to pay to a broker or dealer who 

<PAGE>

     provides such brokerage and research services a commission for executing a
     portfolio transaction for the Portfolio which is in excess of the amount of
     commission another broker or dealer would have charged for effecting that
     transaction if, but only if, the Sub-Adviser determines in good faith that
     such commission was reasonable in relation to the value of the brokerage
     and research services provided by such broker or dealer - - viewed in terms
     of that particular transaction or terms of the overall responsibilities of
     the Sub-Adviser to the Portfolio.  In addition, the Sub-Adviser is
     authorized to allocate purchase and sale orders for securities to brokers
     or dealers (including brokers and dealers that are affiliated with the
     Adviser, Sub-Adviser or the Trust's principal underwriter) to take into
     account the sale of shares of the Trust if the Sub-Adviser believes that
     the quality of the transaction and the commission are comparable to what
     they would be with other qualified firms.  In no instance, however, will
     the Portfolio's Assets be purchased from or sold to the Adviser,
     Sub-Adviser, the Trust's principal underwriter, or any affiliated person of
     either the Trust, Adviser, the Sub-Adviser or the principal underwriter,
     acting as principal in the transaction, except to the extent permitted by
     the Securities and Exchange Commission ("SEC") and the 1940 Act.
      
(d)  The Sub-Adviser shall maintain all books and records with respect to
     transactions involving the Assets required by subparagraphs (b)(5), (6),
     (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the 1940 Act.
     The Sub-Adviser shall provide to the Adviser or the Board of Trustees such
     periodic and special reports, balance sheets or financial information, and
     such other information with regard to its affairs as the Adviser or Board
     of Trustees may reasonably request.
     
     The Sub-Adviser shall keep the books and records relating to the Assets
     required to be maintained by the Sub-Adviser under this Agreement and shall
     timely furnish to the Adviser all information relating to the Sub-Adviser's
     services under this Agreement needed by the Adviser to keep the other books
     and records of the Portfolio required by Rule 31a-1 under the 1940 Act. 
     The Sub-Adviser shall also furnish to the Adviser any other information
     relating to the Assets that is required to be filed by the Adviser or the
     Trust with the SEC or sent to shareholders under the 1940 Act (including
     the rules adopted thereunder) or any exemptive or other relief that the
     Adviser or the Trust obtains from the SEC.  The Sub-Adviser agrees that all
     records that it maintains on behalf of the Portfolio are property of the
     Portfolio and the Sub-Adviser will surrender promptly to the Portfolio any
     of such records upon the Portfolio's request; provided, however, that the
     Sub-Adviser may retain a copy of such records.  In addition, for the
     duration of this Agreement, the  Sub-Adviser shall preserve for the periods
     prescribed by Rule  31a-2 under the 1940 Act any such records as are
     required to be maintained by it pursuant to this Agreement, and shall
     transfer said records to any successor sub-adviser upon the termination of
     this Agreement (or, if there is no successor sub-adviser, to the Adviser).
     
(e)  The Sub-Adviser shall provide the Portfolio's custodian on each business
     day with information relating to all transactions concerning the
     Portfolio's Assets and shall provide the Adviser with such information upon
     request of the Adviser.
     
(f)  The investment management services provided by the Sub-Adviser under this
     Agreement are not to be deemed exclusive and the Sub-Adviser shall be free
     to render similar services to others, as long as such services do not
     impair the services rendered to the Adviser or the Trust.
     
(g)  The Sub-Adviser shall promptly notify the Adviser of any financial
     condition that is likely to impair the Sub-Adviser's ability to fulfill its
     commitment under this Agreement.

(h)  The Sub-Adviser shall review all proxy solicitation materials and be
     responsible for voting and handling all proxies in relation to the
     securities held in the Portfolio.  The Adviser shall instruct the custodian
     and other parties providing services to the Portfolio to promptly forward
     misdirected proxies to the Sub-

<PAGE>

     Adviser.
 
     Services to be furnished by the Sub-Adviser under this Agreement may be
     furnished through the medium of any of the Sub-Adviser's partners, officers
     or employees.

2.   DUTIES OF THE ADVISER.  The Adviser shall continue to have responsibility
     for all services to be provided to the Portfolio pursuant to the Advisory
     Agreement and shall oversee and review the Sub-Adviser's performance of its
     duties under this Agreement; provided, however, that in connection with its
     management of the Assets, nothing herein shall be construed to relieve the
     Sub-Adviser of responsibility for compliance with the Trust's Declaration
     of Trust (as defined herein), the Prospectus, the instructions and
     directions of the Board of Trustees of the Trust, the requirements of the
     1940 Act, the Internal Revenue Code of 1986, and all other applicable
     federal and state laws and regulations, as each is amended from time to
     time.

3.   DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
     copies properly certified or authenticated of each of the following
     documents:

(a)  The Trust's Agreement and Declaration of Trust, as filed with the Secretary
     of State of the Commonwealth of Massachusetts (such Agreement and
     Declaration of Trust, as in effect on the date of this Agreement and as
     amended from time to time, herein called the "Declaration of Trust");
     
(b)  By-Laws of the Trust (such By-Laws, as in effect on the date of this
     Agreement and as amended from time to time, are herein called the
     "By-Laws");
     
(c)  Prospectus(es) of the Portfolio.
     
4.   COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by the
     Sub-Adviser pursuant to this Agreement, the Adviser will pay the
     Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
     therefor, a sub-advisory fee at the rate specified in the Schedule(s) which
     is attached hereto and made part of this Agreement.  The fee will be
     calculated based on the average monthly market value of the Assets under
     the Sub-Adviser s management and will be paid to the Sub-Adviser monthly. 
     Except as may otherwise be prohibited by law or regulation (including any
     then current SEC staff interpretation), the Sub-Adviser may, in its
     discretion and from time to time, waive a portion of its fee.

5.   INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless the
     Adviser from and against any and all claims, losses, liabilities or damages
     (including reasonable attorney's fees and other related expenses) howsoever
     arising from or in connection with the performance of the Sub-Adviser s
     obligations under this Agreement; provided, however, that the Sub-Adviser s
     obligation under this Section 5 shall be reduced to the extent that the
     claim against, or the loss, liability or damage experienced by the Adviser,
     is caused by or is otherwise directly related to the Adviser's own willful
     misfeasance, bad faith or negligence, or to the reckless disregard of its
     duties under this Agreement. 

     The Adviser shall indemnify and hold harmless the Sub-Adviser from and
     against any and all claims, losses, liabilities or damages (including
     reasonable attorney's  fees and other related expenses) howsoever arising
     from or in connection with the performance of the Adviser's obligations
     under this Agreement; provided, however, that the Adviser's obligation
     under this Section 5 shall be reduced to the extent that the claim against,
     or the loss, liability or damage experienced by the Sub-Adviser, is caused
     by or is otherwise directly related to the Sub-Adviser's own willful
     misfeasance, bad faith or negligence, or to the reckless disregard of its
     duties under this Agreement.

<PAGE>

6.   DURATION AND TERMINATION.  This Agreement shall become effective upon its
     approval by the Trust's Board of Trustees and by the vote of a majority of
     the outstanding voting securities of the Portfolio; provided, however, that
     at any time the Adviser shall have obtained exemptive relief from the
     Securities and Exchange Commission permitting it to engage a Sub-Adviser
     without first obtaining approval of the Agreement from a majority of the
     outstanding voting securities of the Portfolio(s) involved, the Agreement
     shall become effective upon its approval by the Trust's Board of Trustees. 
     Any Sub-Adviser so selected and approved shall be without the protection
     accorded by shareholder approval of an investment adviser's receipt of
     compensation under Section 36(b) of the 1940 Act.  

     This Agreement shall continue in effect for a period of more than two years
     from the date hereof only so long as continuance is specifically approved
     at least annually in conformance with the 1940 Act; provided, however, that
     this Agreement may be terminated with respect to the Portfolio (a) by the
     Portfolio at any time, without the payment of any penalty, by the vote of a
     majority of Trustees of the Trust or by the vote of a majority of the
     outstanding voting securities of the Portfolio, (b) by the Adviser at any
     time, without the payment of any penalty, on not more than 60 days' nor
     less than 30 days' written notice to the Sub-Adviser, or (c) by the
     Sub-Adviser at any time, without the payment of any penalty, on 90 days'
     written notice to the Adviser.  This Agreement shall terminate
     automatically and immediately in the event of its assignment, or in the
     event of a termination of the Adviser's agreement with the Trust.  As used
     in this Section 6, the terms "assignment" and "vote of a majority of the
     outstanding voting securities" shall have the respective meanings set forth
     in the 1940 Act and the rules and regulations thereunder, subject to such
     exceptions as may be granted by the SEC under the 1940 Act.

7.   GOVERNING LAW.  This Agreement shall be governed by the internal laws of
     the Commonwealth of Massachusetts, without regard to conflict of law
     principles; provided, however, that nothing herein shall be construed as
     being inconsistent with the 1940 Act.

8.   SEVERABILITY.  Should any part of this Agreement be held invalid by a court
     decision, statute, rule or otherwise, the remainder of this Agreement shall
     not be affected thereby.  This Agreement shall be binding upon and shall
     inure to the benefit of the parties hereto and their respective successors.

9.   NOTICE:  Any notice, advice or report to be given pursuant to this
     Agreement shall be deemed sufficient if delivered or mailed by registered,
     certified or overnight mail, postage prepaid addressed by the party giving
     notice to the other party at the last address furnished by the other party:

       To the Adviser at:               SEI Investments Management Corporation
                                        Oaks, PA 19456
                                        Attention:  Legal Department

       To the Sub-Adviser at:           Furman Selz Capital Management, LLC
                                        230 Park Avenue, 10th Floor
                                        New York, NY  10169 
     
10.  ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
     understanding between the parties hereto, and supersedes all prior
     agreements and understandings relating to this Agreement's subject matter. 
     This Agreement may be executed in any number of counterparts, each of which
     shall be deemed to be an original, but such counterparts shall, together,
     constitute only one instrument.

     A copy of the Declaration of Trust is on file with the Secretary of State
of the Commonwealth of Massachusetts, and notice is hereby given that the
obligations of this instrument are not binding upon any of the 

<PAGE>

Trustees, officers or shareholders of the Portfolio or the Trust.

     Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
SEC, whether of special or general application, such provision shall be deemed
to incorporate the effect of such rule, regulation or order.

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their officers designated below as of the day and year first written
above.

<TABLE>
<CAPTION>
<S>                                          <C>

SEI Investments Management Corporation       Furman Selz Capital Management, LLC

By:                                          By:
    /s/ Kevin P. Robins                          /s/ Vincent J. Lepore
    -------------------                          ---------------------

Name:                                        Name:
    Kevin P. Robins                              Vincent J. Lepore
    ---------------                              -----------------

Title:                                       Title:
    Senior Vice President                        Vice President and Managing Director
    ---------------------                        ------------------------------------

</TABLE>

<PAGE>

                                      SCHEDULE A
                                        TO THE
                                SUB-ADVISORY AGREEMENT
                                       BETWEEN
                        SEI INVESTMENTS MANAGEMENT CORPORATION
                                         AND
                         FURMAN SELZ CAPITAL MANAGEMENT, LLC




Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

Small Cap Growth Portfolio                   .  %

<PAGE>

                                                         Exhibit 99.B(5)(aa)

                        INVESTMENT SUB-ADVISORY AGREEMENT
                         SEI INSTITUTIONAL MANAGED TRUST


    AGREEMENT made this 1st day of May, 1996, between SEI Financial 
Management Corporation, (the "Adviser") and Provident Investment Counsel, 
Inc. (the "Sub-Adviser").

    WHEREAS, SEI Institutional Managed Trust, a Massachusetts business trust 
(the "Trust") is registered as an open-end management investment company 
under the Investment Company Act of 1940, as amended (the "1940 Act"); and

    WHEREAS, the Adviser has entered into an Investment Advisory Agreement 
dated December 16, 1994 (the "Advisory Agreement") with the Trust, pursuant 
to which the Adviser will act as investment adviser to the Large Cap Growth 
Portfolio (the "Portfolio"), which is a series of the Trust; and

    WHEREAS, the Adviser, with the approval of the Trust, desires to retain 
the Sub-Adviser to provide investment advisory services to the Adviser in 
connection with the management of the Portfolio, and the Sub-Adviser is 
willing to render such investment advisory services,

    NOW, THEREFORE, the parties hereto agree as follows:

1.  Duties of the Sub-Adviser. Subject to supervision by the Adviser and the 
    Trust's Board of Trustees, the Sub-Adviser shall manage all of the 
    securities and other assets of the Portfolio entrusted to it hereunder 
    (the "Assets"), including the purchase, retention and disposition of the 
    Assets, in accordance with the Portfolio's investment objectives, 
    policies and restrictions as stated in the Portfolio's prospectus and 
    statement of additional information, as currently in effect and as 
    amended or supplemented from time to time (referred to collectively as 
    the "Prospectus"), and subject to the following:

    (a)  The Sub-Adviser shall, in consultation with and subject to the 
    direction of the Adviser, determine from time to time what Assets will be 
    purchased, retained or sold by the Portfolio, and what portion of the 
    Assets will be invested or held uninvested in cash.

    (b)  In the performance of its duties and obligations under this 
    Agreement, the Sub-Adviser shall act in conformity with the Trust's 
    Declaration of Trust (as defined herein) and the Prospectus and with the 
    instructions and directions of the Adviser and of the Board of Trustees 
    of the Trust and will conform to and comply with the requirements of the 
    1940 Act, the Internal Revenue Code of 1986, and all other applicable 
    federal and state laws and regulations, as each is amended from time to 
    time.

    (c)  The Sub-Adviser shall determine the Assets to be purchased or sold 
    by the Portfolio as provided in subparagraph (a) and will place orders 
    with or through such persons, brokers or dealers to carry out the policy 
    with respect to brokerage set forth in the Portfolio's Registration 
    Statement (as defined herein) and Prospectus or as the Board of Trustees 
    or the Adviser may direct from time to time, in conformity with federal 
    securities laws. In executing Portfolio transactions and selecting 
    brokers or dealers, the Sub-Adviser will use its best efforts to seek on 
    behalf of the Portfolio the best overall terms available. In assessing 
    the best overall terms available for any transaction, the Sub-Adviser 
    shall consider all factors that it deems relevant, including the breadth 
    of the market in the security, the price of the security, the financial 
    condition and execution capability of the broker or dealer, and the 
    reasonableness of the commission, if any, both for the


<PAGE>

    specific transaction and on a continuing basis. In evaluating the best 
    overall terms available, and in selecting the broker-dealer to execute a 
    particular transaction, the Sub-Adviser may also consider the brokerage 
    and research services provided (as those terms are defined in Section 
    28(e) of the Securities Exchange Act of 1934). Consistent with any 
    guidelines established by the Board of Trustees of the Trust, the 
    Sub-Adviser is authorized to pay to a broker or dealer who provides such 
    brokerage and research services a commission for executing a portfolio 
    transaction for the Portfolio which is in excess of the amount of 
    commission another broker or dealer would have charged for effecting that 
    transaction if, but only if, the Sub-Adviser determines in good faith 
    that such commission was reasonable in relation to the value of the 
    brokerage and research services provided by such broker or dealer--viewed 
    in terms of that particular transaction or terms of the overall 
    responsibilities of the Sub-Adviser to the Portfolio. In addition, the 
    Sub-Adviser if authorized to allocate purchase and sale orders for 
    securities to brokers or dealers (including brokers and dealers that are 
    affiliated with the Adviser, Sub-Adviser or the Trust's principal 
    underwriter) to take into account the sale of shares of the Trust if the 
    Sub-Adviser believes that the quality of the transaction and the 
    commission are comparable to what they would be with other qualified 
    firms. In no instance, however, will the Portfolio's Assets be purchased 
    from or sold to the Adviser, Sub-Adviser, the Trust's principal 
    underwriter, or any affiliated person of either the Trust, Adviser, the 
    Sub-Adviser or the principal underwriter, acting as principal in the 
    transaction, except to the extent permitted by the Securities and 
    Exchange Commission ("SEC") and the 1940 Act.

    (d)  The Sub-Adviser shall maintain all books and records with respect to 
    transactions involving the Assets required by subparagraphs (b)(5), (6), 
    (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the 1940 
    Act. The Sub-Adviser shall provide to the Adviser or the Board of 
    Trustees such periodic and special reports, balance sheets or financial 
    information, and such other information with regard to its affairs as the 
    Adviser or Board of Trustees may reasonably request.

    The Sub-Adviser shall keep the books and records relating to the Assets 
    required to be maintained by the Sub-Adviser under this Agreement and 
    shall timely furnish to the Adviser all information relating to the 
    Sub-Adviser's services under this Agreement needed by the Adviser to keep 
    the other books and records of the Portfolio required by Rule 31a-1 under 
    the 1940 Act. The Sub-Adviser shall also furnish to the Adviser any other 
    information relating to the Assets that is required to be filed by the 
    Adviser or the Trust with the SEC or sent to shareholders under the 1940 
    Act (including the rules adopted thereunder) or any exemptive or other 
    relief that the Adviser or the Trust obtains from the SEC. The 
    Sub-Adviser agrees that all records that it maintains on behalf of the 
    Portfolio are property of the Portfolio and the Sub-Adviser will 
    surrender promptly to the Portfolio any of such records upon the 
    Portfolio's request, provided, however, that the Sub-Adviser may retain a 
    copy of such records. In addition, for the duration of this Agreement, 
    the Sub-Adviser shall preserve for the periods prescribed by Rule 31a-2 
    under the 1940 Act any such records as are required to be maintained by 
    it pursuant to this Agreement, and shall transfer said records to any 
    successor sub-adviser upon the termination of this Agreement (or, if 
    there is no successor sub-adviser, to the Adviser).

    (e)  The Sub-Adviser shall provide the Portfolio's custodian on each 
    business day with information relating to all transactions concerning
    the Portfolio's Assets and shall provide the Adviser with such information
    upon request of the Adviser.

                                       2

<PAGE>

   (f) The investment management services provided by the Sub-Adviser under 
   this Agreement are not to be deemed exclusive and the Sub-Adviser shall be 
   free to render similar services to others, as long as such services do not 
   impair the services rendered to the Adviser or the Trust.

   (g) The Sub-Adviser shall promptly notify the Adviser of any financial 
   condition that is likely to impair the Sub-Adviser's ability to fulfill 
   its commitment under this Agreement.

   (h) The Sub-Adviser shall review all proxy solicitation materials and be 
   responsible for voting and handling all proxies in relation to the 
   securities held in the Portfolio. The Adviser shall instruct the custodian 
   and other parties providing services to the Portfolio to promptly forward 
   misdirected proxies to the Sub-Adviser.

   Services to be furnished by the Sub-Adviser under this Agreement may be 
   furnished through the medium of any of the Sub-Adviser's partners, 
   officers or employees.

2. Duties of the Adviser. The Adviser shall continue to have responsibility 
   for all services to be provided to the Portfolio pursuant to the Advisory 
   Agreement and shall oversee and review the Sub-Adviser's performance of 
   its duties under this Agreement; provided, however, that in connection 
   with its management of the Assets, nothing herein shall be construed to 
   relieve the Sub-Adviser of responsibility for compliance with the Trust's 
   Declaration of Trust (as defined herein), the Prospectus, the instructions 
   and directions of the Board of Trustees of the Trust, the requirements of 
   the 1940 Act, the Internal Revenue Code of 1986, and all other applicable 
   federal and state laws and regulations, as each is amended from time to 
   time.

3. Delivery of Documents. The Adviser has furnished the Sub-Adviser with 
   copies properly certified or authenticated of each of the following 
   documents:

   (a) The Trust's Agreement and Declaration of Trust, as filed with the 
   Secretary of State of the Commonwealth of Massachusetts (such Agreement 
   and Declaration of Trust, as in effect on the date of this Agreement and 
   as amended from time to time, herein called the "Declaration of Trust"):

   (b) By-Laws of the Trust (such By-Laws, as in effect on the date of this 
   Agreement and as amended from time to time, are herein called the 
   "By-Laws"):

   (c) Prospectus(es) of the Portfolio.

4. Compensation to the Sub-Adviser. For the services to be provided by the 
   Sub-Adviser pursuant to this Agreement, the Adviser will pay the 
   Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation 
   therefor, a sub-advisory fee at the rate specified in the Schedule(s) 
   which is attached hereto and made part of this Agreement. The fee will be 
   calculated based on the average monthly market value of the Assets under 
   the Sub-Adviser's management and will be paid to the Sub-Adviser monthly. 
   Except as may otherwise be prohibited by law or regulation (including any 
   then current SEC staff interpretation), the Sub-Adviser may, in its 
   discretion and from time to time, waive a portion of its fee.

5. Indemnification. The Sub-Adviser shall indemnify and hold harmless the 
   Adviser from and against any and all claims, losses, liabilities or 
   damages (including reasonable attorney's fees and other related expenses) 
   howsoever arising from or in connection with the performance of the 
   Sub-Adviser's obligations under this Agreement provided, however, that the 
   Sub-Adviser's obligation

                                         3
<PAGE>

    under this Section 5 shall be reduced to the extent that the claim 
    against, or the loss, liability, or damage experienced by the Adviser, is 
    caused by or is otherwise directly related to the Adviser's own willful 
    misfeasance, bad faith or negligence, or to the reckless disregard of its 
    duties under this Agreement.

6.  Duration and Termination.  This Agreement shall become effective upon its 
    approval by the Trust's Board of Trustees and by the vote of a majority 
    of the outstanding voting securities of the Portfolio.  This Agreement 
    shall continue in effect for a period of more than two years from the 
    date hereof only so long as continuance is specifically approved at least 
    annually in conformance with the 1940 Act; provided, however, that this 
    Agreement may be terminated with respect to the Portfolio (a) by the 
    Portfolio at any time, without the payment of any penalty, by the vote of 
    a majority of Trustees of the Trust or by the vote of a majority of the 
    outstanding voting securities of the Portfolio, (b) by the Adviser at any 
    time, without the payment of any penalty, on not more than 60 days' nor 
    less than 30 days' written notice to the Sub-Adviser, or (c) by the 
    Sub-Adviser at any time, without the payment of any penalty, on 90 days' 
    written notice to the Adviser.  This Agreement shall terminate 
    automatically and immediately in the event of its assignment, or in the 
    event of a termination of the Adviser's agreement with the Trust.  As 
    used in this Section 6, the terms "assignment" and "vote of a majority of 
    the outstanding voting securities" shall have the respective meanings set 
    forth in the 1940 Act and the rules and regulations thereunder, subject 
    to such exceptions as may be granted by the SEC under the 1940 Act.

7.  Governing Law.  This Agreement shall be governed by the internal laws of 
    the Commonwealth of Massachusetts, without regard to conflict of law 
    principles; provided, however, that nothing herein shall be construed as 
    being inconsistent with the 1940 Act.

8.  Severability.  Should any part of this Agreement be held invalid by a 
    court decision, statute, rule or otherwise, the remainder of this 
    Agreement shall not be affected thereby.  This Agreement shall be binding 
    upon and shall inure to the benefit of the parties hereto and their 
    respective successors.

9.  Notice:  Any notice, advice or report to be given pursuant to this 
    Agreement shall be deemed sufficient if delivered or mailed by 
    registered, certified or overnight mail, postage prepaid addressed by the 
    party giving notice to the other party at the last address furnished by 
    the other party:

    To the Adviser at:                SEI Financial Management Corporation
                                      680 East Swedesford Road
                                      Wayne, PA  19087
                                      Attention:  Legal Department

    To the Sub-Adviser at:            Provident Investment Counsel, Inc.
                                      300 North Lake Avenue, Penthouse
                                      Pasadena, CA  91101
                                      Attention:  President

10. Entire Agreement.  This Agreement embodies the entire agreement and 
    understanding between the parties hereto, and supersedes all prior 
    agreements and understandings relating to this Agreement's subject 
    matter.  This Agreement may be executed in any number of counterparts, 
    each of which shall be deemed to be an original, but such counterparts 
    shall, together, constitute only one instrument.

                                       4

<PAGE>

     A copy of the Declaration of Trust is on file with the Secretary of 
State of the Commonwealth of Massachusetts, and notice is hereby given that 
the obligations of this instrument are not binding upon any of the Trustees, 
officers or shareholders of the Portfolio or the Trust.

     Where the effect of a requirement of the 1940 Act reflected in any 
provision of this Agreement is altered by a rule, regulation or order of the 
SEC, whether of special or general application, such provision shall be 
deemed to incorporate the effect of such rule, regulation or order.

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be 
executed by their officers designated below as of the day and year first 
written above.

SEI Financial Management Corporation     Provident Investment Counsel, Inc.

By:     /s/ Todd Cipperman               By:     /s/ Thad M. Brown
      -----------------------------            --------------------------------

Name:   /s/ Todd Cipperman               Name:   /s/ Thad M. Brown
      -----------------------------            --------------------------------

Title:  Vice President                   Title:  Senior V.P./C.O.O.
      -----------------------------            --------------------------------


                                     5

<PAGE>

                                   Schedule A
                                     to the
                             Sub-Advisory Agreement
                                    between
                     SEI Financial Management Corporation
                                     and
                      Provident Investment Counsel, Inc.


Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at 
an annual rate as follows:

Large Cap Growth Portfolio            


                                      6


<PAGE>

                                                           Exhibit 99.B(5)(dd)
                                       
                     INVESTMENT SUB-ADVISORY AGREEMENT 
                      SEI INSTITUTIONAL MANAGED TRUST

    AGREEMENT made this 13th day of November, 1995, between SEI Financial 
Management Corporation, (the "Adviser") and Western Asset Management Company 
(the "Sub-Adviser").

    WHEREAS, SEI Institutional Managed Trust, a Massachusetts business trust 
(the "Trust") is registered as an open-end management investment company 
under the Investment Company Act of 1940, as amended (the "1940 Act"); and

    WHEREAS, the Adviser has entered into an Investment Advisory Agreement 
dated December 16, 1994 (the "Advisory Agreement") with the Trust, pursuant 
to which the Adviser will act as investment adviser to the Core Fixed Income 
Portfolio (the "Portfolio"), which is a series of the Trust; and

    WHEREAS, the Adviser, with the approval of the Trust, desires to retain 
the Sub-Adviser to provide investment advisory services to the Adviser in 
connection with the management of the Portfolio, and the Sub-Adviser is 
willing to render such investment advisory services.

    NOW, THEREFORE, the parties hereto agree as follows:

1.  Duties of the Sub-Adviser.  Subject to supervision by the Adviser and the 
    Trust's Board of Trustees, the Sub-Adviser shall manage all of the 
    securities and other assets of the Portfolio entrusted to it hereunder 
    (the "Assets"), including the purchase, retention and disposition of the 
    Assets, in accordance with the Portfolio's investment objectives, 
    policies and restrictions as stated in the Portfolio's prospectus and 
    statement of additional information, as currently in effect and as 
    amended or supplemented from time to time (referred to collectively as 
    the "Prospectus"), and subject to the following:

    (a)  The Sub-Adviser shall, subject to the Prospectus and any written 
    instruction or direction of the Adviser, determine from time to time what 
    Assets will be purchased, retained or sold by the Portfolio, and what 
    portion of the Assets will be invested or held uninvested in cash.

    (b)  In the performance of its duties and obligations under this 
    Agreement, the Sub-Adviser shall act in conformity with the Trust's 
    Declaration of Trust (as defined herein) and the Prospectus and with the 
    instructions and directions of the Advisor and of the Board of Trustees of 
    the Trust and will conform to and comply with the requirements of the 
    1940 Act, the Internal Revenue Code of 1986, and all other applicable 
    federal and state laws and regulations, as each is amended from time to 
    time.

    (c)  The Sub-Advisor shall determine the Assets to be purchased or sold 
    by the Portfolio as provided in subparagraph (a) and will place orders 
    with or through such persons, brokers or dealers to carry out the policy 
    with respect to brokerage set forth in the Portfolio's Registration 
    Statement (as defined herein) and Prospectus or as the Board of Trustees 
    or the Adviser may direct from time to time, in conformity with federal 
    securities laws.  In executing Portfolio transactions and selecting 
    brokers or dealers, the Sub-Advisor will use its best efforts to seek on 
    behalf of the Portfolio the best overall terms available.  In assessing 
    the best overall terms available for any transaction, the Sub-Adviser 
    shall consider all factors that it deems relevant, including the breadth 
    of the market in the security, the price of the security, the financial 
    condition and execution capability of the broker or dealer, and the 
    reasonableness of the commission, if any, both for the



<PAGE>

    specific transaction and on a continuing basis. In evaluating the best 
    overall terms available, and in selecting the broker-dealer to execute a 
    particular transaction, the Sub-Adviser may also consider the brokerage 
    and research services provided (as those terms are defined in Section 
    28(e) of the Securities Exchange Act of 1934). Consistent with any 
    guidelines established by the Board of Trustees of the Trust, the 
    Sub-Adviser is authorized to pay to a broker or dealer who provides such 
    brokerage and research services a commission for executing a portfolio 
    transaction for the Portfolio which is in excess of the amount of 
    commission another broker or dealer would have charged for effecting that 
    transaction if, but only if, the Sub-Adviser determines in good faith 
    that such commission was reasonable in relation to the value of the 
    brokerage and research services provided by such broker or dealer--viewed 
    in terms of that particular transaction or terms of the overall 
    responsibilities of the Sub-Adviser to the Portfolio. In addition, the 
    Sub-Adviser if authorized to allocate purchase and sale orders for 
    securities to brokers or dealers (including brokers and dealers that are 
    affiliated with the Adviser, Sub-Adviser or the Trust's principal 
    underwriter) to take into account the sale of shares of the Trust if the 
    Sub-Adviser believes that the quality of the transaction and the 
    commission are comparable to what they would be with other qualified 
    firms. In no instance, however, will the Portfolio's Assets be purchased 
    from or sold to the Adviser, Sub-Adviser, the Trust's principal 
    underwriter, or any affiliated person of either the Trust, Adviser, the 
    Sub-Adviser or the principal underwriter, acting as principal in the 
    transaction, except to the extent permitted by the Securities and 
    Exchange Commission ("SEC") and the 1940 Act.

    (d) The Sub-Adviser shall maintain all books and records with respect to 
    transactions involving the Assets required by subparagraphs (b)(5), (6), 
    (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the 1940 
    Act. The Sub-Adviser shall provide to the Adviser or the Board of 
    Trustees such periodic and special reports, balance sheets or financial 
    information, and such other information with regard to its affairs as the 
    Adviser or Board of Trustees may reasonably request.

    The Sub-Adviser shall keep the books and records relating to the Assets 
    required to be maintained by the Sub-Adviser under this Agreement and 
    shall timely furnish to the Adviser all information relating to the 
    Sub-Adviser's services under this Agreement needed by the Adviser to keep 
    the other books and records of the Portfolio required by Rule 31a-1 under 
    the 1940 Act. The Sub-Adviser shall also furnish to the Adviser any other 
    information relating to the Assets that is required to be filed by the 
    Adviser or the Trust with the SEC or sent to shareholders under the 1940 
    Act (including the rules adopted thereunder) or any exemptive or other 
    relief that the Adviser or the Trust obtains from the SEC. The 
    Sub-Adviser agrees that all records that it maintains on behalf of the 
    Portfolio are property of the Portfolio and the Sub-Adviser will 
    surrender promptly to the Portfolio any of such records upon the 
    Portfolio's request; provided, however, that the Sub-Adviser may retain a 
    copy of such records. In addition, for the duration of this Agreement, 
    the Sub-Adviser shall preserve for the periods prescribed by Rule 31a-2 
    under the 1940 Act any such records as are required to be maintained by 
    it pursuant to this Agreement, and shall transfer said records to any 
    successor sub-adviser upon the termination of this Agreement (or, if 
    there is no successor sub-adviser, to the Adviser).

    (e) The Sub-Adviser shall provide the Portfolio's custodian on each 
    business day with information relating to all transactions concerning the 
    Portfolio's Assets and shall provide the Adviser with such information 
    upon request of the Adviser.


                                     2
<PAGE>

    (f) The investment management services provided by the Sub-Adviser under 
    this Agreement are not to be deemed exclusive and the Sub-Adviser shall be 
    free to render similar services to others, as long as such services do not 
    impair the services rendered to the Adviser or the Trust.

    (g) The Sub-Adviser shall promptly notify the Adviser of any financial 
    condition that is likely to impair the Sub-Adviser's ability to fullfill 
    its commitment under this Agreement.

    (h) The Sub-Adviser shall review all proxy solicitation materials and be 
    responsible for voting and handling all proxies in relation to the 
    securities held in the Portfolio. The Adviser shall instruct the custodian
    and other parties providing services to the Portfolio to promptly forward
    misdirected proxies to the Sub-Adviser.
    
          Services to be furnished by the Sub-Adviser under this Agreement may
    be furnished through the medium of any of the Sub-Adviser's partners, 
    officers or employees.

2.  Duties of the Adviser. The Adviser shall continue to have responsibility 
    for all services to be provided to the Portfolio pursuant to the Advisory
    Agreement and shall oversee and review the Sub-Adviser's performance of 
    its duties under this Agreement; provided, however, that in connection 
    with its management of the Assets, nothing herein shall be construed to 
    relieve the Sub-Adviser of responsibility for compliance with the Trust's
    Declaration of Trust (as defined herein), the Prospectus, the 
    instructions and directions of the Board of Trustees of the Trust, the 
    requirements of the 1940 Act, the Internal Revenue Code of 1986, and all
    other applicable federal and state laws and regulations, as each is 
    amended from time to time.
    
3.  Delivery of Documents. The Adviser has furnished the Sub-Adviser with 
    copies properly certified or authenticated of each of the following 
    documents
    
    (a) The Trust's Agreement and Declaration of Trust, as filed with the 
    Secretary of State of the Commonwealth of Massachusetts (such Agreement
    and Declaration of Trust, as in effect on the date of this Agreement and 
    as amended from time to time, herein called the "Declaration of Trust");
    
    (b) By-Laws of the Trust (such By-Laws, as in effect on the date of this 
    Agreement and as amended from time to time, are herein called the 
    "By-Laws");

    (c) Prospectus(es) of the Portfolio.
    
4.  Compensation to the Sub-Adviser. For the services to be provided by the 
    Sub-Adviser pursuant to this Agreement, the Adviser will pay the 
    Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
    therefor, a sub-advisory fee at the rate specified in the Schedule(s) 
    which is attached hereto and made part of this Agreement. The fee will 
    be calculated based on the average monthly market value of the Assets 
    under the Sub-Adviser's management and will be paid to the Sub-Adviser 
    monthly. Except as may otherwise be prohibited by law or regulation 
    (including any then current SEC staff interpretation), the Sub-Adviser 
    may, in its discretion from time to time, waive a portion of its fee.
    
5.  Indemnification. The Sub-Adviser shall indemnify and hold harmless the 
    Adviser from and against any and all claims, losses, liabilities or 
    damages (including reasonable attorney's fees and other related expenses) 
    howsoever arising from or in connection with the performance of the 
    Sub-Adviser's obligations under this Agreement; provided, however, that 
    the Sub-Adviser's obligation
    
    
    
                                       3
<PAGE>
   
    under this Section 5 shall be reduced to the extent that the claim 
    against, or the loss, liability or damage experienced by the Adviser, 
    is caused by or is otherwise directly related to the Adviser's own 
    willful misfeasance, bad faith or negligence, or to the reckless 
    disregard of its duties under this Agreement.
    
    The Adviser shall indemnify and hold harmless the Sub-Adviser from and 
    against any and all claims, losses, liabilities or damages (including 
    reasonable attorney's fees and other related expenses) howsoever arising 
    from or in connection with the performance of the Adviser's 
    obligations under this Agreement; provided, however, that the Adviser's 
    obligation under this Section 5 shall be reduced to the extent that the 
    claim against, or the loss, liability or damage experienced by the 
    Sub-Adviser, is caused by or otherwise directly related to the 
    Sub-Adviser's own willful misfeasance, bad faith or negligence, or to 
    the reckless disregard of its duties under this Agreement.

6.  Limitation of Liability of the Sub-Adviser. The Sub-Adviser shall not 
    be liable for any error of judgment or for any loss suffered by the 
    Adviser in connection with performance of its obligations under this 
    Agreement, except a loss resulting from a breach of fiduciary duty with 
    respect to the receipt of compensation for services (in which case any 
    award of damages shall be limited to the period and the amount set 
    forth in Section 36(b)(3) of the 1940 Act), or a loss resulting from 
    willful misfeasance, bad faith or negligence on the Sub-Adviser's part 
    in the performance of its duties or from reckless disregard of its 
    obligations and duties under this Agreement, except as may otherwise be 
    provided under provisions of applicable state law which cannot be 
    waived or modified hereby.
    
7.  Duration and Termination. This Agreement shall become effective upon its 
    approval by the Trust's Board of Trustees and by the vote of a majority 
    of the outstanding voting securities of the Portfolio. This Agreement 
    shall continue in effect for a period of more than two years from the 
    date hereof only so long as continuance is specifically approved at 
    least annually in conformance with the 1940 Act; provided, however, 
    that this Agreement may be terminated with respect to the Portfolio (a) 
    by the Portfolio at any time, without the payment of any penalty, by 
    the vote of a majority of Trustees of the Trust or by the vote of a 
    majority of the outstanding voting securities of the Portfolio, (b) by 
    the Adviser at any time, without the payment of any penalty, on not 
    more than 60 days' nor less than 30 days' written notice to the Sub-Adviser,
    or (c) by the Sub-Adviser at any time, without the payment of any 
    penalty, on 90 days' written notice to the Adviser. This Agreement 
    shall terminate automatically and immediately in the event of its 
    assignment, or in the event of a termination of the Adviser's agreement 
    with the Trust. As used in this Section 7, the terms "assignment" and 
    "vote of a majority of the outstanding voting securities" shall have 
    the respective meanings set forth in the 1940 Act and the rules and 
    regulations thereunder, subject to such exceptions as may be granted by 
    the SEC under the 1940 Act.
    
8.  Governing Law. This Agreement shall be governed by the internal laws of 
    the Commonwealth of Massachusetts, without regard to conflict of law 
    principles; provided, however, that nothing herein shall be constructed 
    as being inconsistent with the 1940 Act.

9.  Severability. Should any part of this Agreement be held invalid by a 
    court decision, statute, rule or otherwise, the remainder of this 
    Agreement shall not be affected thereby. This Agreement shall be 
    binding upon and shall inure to the benefit of the parties hereto and 
    their respective successors.


                                       4


<PAGE>

10. Notice:  Any notice, advice or report to be given pursuant to this 
    Agreement shall be deemed sufficient if delivered or mailed by 
    registered, certified or overnight mail, postage prepaid addressed by the 
    party giving notice to the other party at the last address furnished by 
    the other party:

    To the Adviser at:                SEI Financial Management Corporation
                                      680 East Swedesford Road
                                      Wayne, PA 19087
                                      Attention: Legal Department

    To the Sub-Adviser at:            Western Asset Management Company
                                      117 East Colorado Boulevard
                                      Pasadena, California 91105
                                      Attention: Ilene S. Harker, Director

11. Entire Agreement. This Agreement embodies the entire agreement and 
    understanding between the parties hereto, and supersedes all prior 
    agreements and understandings relating to this Agreement's subject 
    matter. This Agreement may be executed in any number of counterparts, 
    each of which shall be deemed to be an original, but such counterparts 
    shall, together, constitute only one instrument.

    A copy of the Declaration of Trust is on file with the Secretary of State 
of the Commonwealth of Massachusetts, and notice is hereby given that the 
obligations of this instrument are not binding upon any of the Trustees, 
officers or shareholders of the Portfolio or the Trust.

    Where the effect of a requirement of the 1940 Act reflected in any 
provision of this Agreement is altered by a rule, regulation or order of the 
SEC, whether of special or general application, such provision shall be 
deemed to incorporate the effect of such rule, regulation or order.

    IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be 
executed by their officers designated below as of the day and year first 
written above.

SEI Financial Management Corporation      Western Asset Management Company

By:  /s/ Robert B. Carroll                By:  /s/ Ilene S. Harker
   -------------------------                 ------------------------

Name: Robert B. Carroll                   Name: Ilene S. Harker

Title: Vice President                     Title: Director


                                    5
<PAGE>
                                       
                                  Schedule A
                                    to the
                            Sub-Advisory Agreement
                                   between
                    SEI Financial Management Corporation
                                     and
                      Western Asset Management Company



Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at 
an annual rate as follows:

Core Fixed Income Portfolio                


                                       6





<PAGE>

                          INVESTMENT SUB-ADVISORY AGREEMENT
                           SEI INSTITUTIONAL MANAGED TRUST

     AGREEMENT made this 15th day of December, 1997, between SEI Investments
Management Corporation, (the "Adviser") and Sanford C. Bernstein & Co., Inc.
(the "Sub-Adviser"). 

     WHEREAS, SEI Institutional Managed Trust, a Massachusetts business trust
(the "Trust"), is registered as an open-end management investment company under
the Investment Company Act of 1940, as amended (the "1940  Act"); and

     WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated December 16, 1994 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Large Cap Value
Portfolio (the "Portfolio"), which is a series of the Trust; and

     WHEREAS, the Adviser, with the approval of the Trust, desires to retain the
Sub-Adviser to provide investment advisory services to the Adviser in connection
with the management of the Portfolio, and the Sub-Adviser is willing to render
such investment advisory services.   

     NOW, THEREFORE, the parties hereto agree as follows:

1.   DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and the
     Trust's Board of Trustees, the Sub-Adviser shall manage all of the
     securities and other assets of the Portfolio entrusted to it hereunder (the
     "Assets"), including the purchase, retention and disposition of the Assets,
     in accordance with the Portfolio's investment objectives, policies and
     restrictions as stated in the Portfolio's prospectus and statement of
     additional information,  as currently in effect and as amended or
     supplemented from time to time (referred to collectively as the
     "Prospectus"), and subject to the following:

(a)  The Sub-Adviser shall, in consultation with and subject to the direction of
     the Adviser, determine from time to time what Assets will be purchased,
     retained or sold by the Portfolio, and what portion of the Assets will be
     invested or held uninvested in cash.
     
(b)  In the performance of its duties and obligations under this Agreement, the
     Sub-Adviser shall act in conformity with the Trust's Declaration of Trust
     (as defined herein) and the Prospectus and with the instructions and
     directions of the Adviser and of the Board of Trustees of the Trust and
     will conform to and comply with the requirements of the 1940 Act, the
     Internal Revenue Code of 1986, and all other applicable federal and state
     laws and regulations, as each is amended from time to time.
     
(c)  The Sub-Adviser shall determine the Assets to be purchased or sold by the
     Portfolio as provided in subparagraph (a) and will place orders with or
     through such persons, brokers or dealers to carry out the policy with
     respect to brokerage set forth in the Portfolio's Registration Statement
     (as defined herein) and Prospectus or as the Board of Trustees or the
     Adviser may direct from time to time, in conformity with federal securities
     laws.  In executing Portfolio transactions and selecting brokers or
     dealers, the Sub-Adviser will use its best efforts to seek on behalf of the
     Portfolio the best overall terms available.  In assessing the best overall
     terms available for any transaction, the Sub-Adviser shall consider all
     factors that it 

<PAGE>

     deems relevant, including the breadth of the market in the security, the
     price of the security, the financial condition and execution capability of
     the broker or dealer, and the reasonableness of the commission, if any,
     both for the specific transaction and on a continuing basis.  In evaluating
     the best overall terms available, and in selecting the broker-dealer to
     execute a particular transaction, the Sub-Adviser may also consider the
     brokerage and research services provided (as those terms are defined in
     Section 28(e) of the Securities Exchange Act of 1934).  Consistent with any
     guidelines established by the Board of Trustees of the Trust and Section
     28(e) of the Exchange Act, the Sub-Adviser is authorized to pay to a broker
     or dealer who provides such brokerage and research services a commission
     for executing a portfolio transaction for the Portfolio which is in excess
     of the amount of commission another broker or dealer would have charged for
     effecting that transaction if, but only if, the Sub-Adviser determines in
     good faith that such commission was reasonable in relation to the value of
     the brokerage and research services provided by such broker or dealer - -
     viewed in terms of that particular transaction or terms of the overall
     responsibilities of the Sub-Adviser to its discretionary clients, including
     the Portfolio.  In addition, the Sub-Adviser is authorized to allocate
     purchase and sale orders for securities to brokers or dealers (including
     brokers and dealers that are affiliated with the Adviser, Sub-Adviser or
     the Trust's principal underwriter) to take into account the sale of shares
     of the Trust if the Sub-Adviser believes that the quality of the
     transaction and the commission are comparable to what they would be with
     other qualified firms.  In no instance, however, will the Portfolio's
     Assets be purchased from or sold to the Adviser, Sub-Adviser, the Trust's
     principal underwriter, or any affiliated person of either the Trust,
     Adviser, the Sub-Adviser or the principal underwriter, acting as principal
     in the transaction, except to the extent permitted by the Securities and
     Exchange Commission ("SEC") and the 1940 Act.
      
(d)  The Sub-Adviser shall maintain all books and records with respect to
     transactions involving the Assets required by subparagraphs (b)(5), (6),
     (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the 1940 Act.
     The Sub-Adviser shall provide to the Adviser or the Board of Trustees such
     periodic and special reports, balance sheets or financial information, and
     such other information with regard to its affairs as the Adviser or Board
     of Trustees may reasonably request.
     
     The Sub-Adviser shall keep the books and records relating to the Assets
     required to be maintained by the Sub-Adviser under this Agreement and shall
     timely furnish to the Adviser all information relating to the Sub-Adviser's
     services under this Agreement needed by the Adviser to keep the other books
     and records of the Portfolio required by Rule 31a-1 under the 1940 Act. 
     The Sub-Adviser shall also furnish to the Adviser any other information
     relating to the Assets that is required to be filed by the Adviser or the
     Trust with the SEC or sent to shareholders under the 1940 Act (including
     the rules adopted thereunder) or any exemptive or other relief that the
     Adviser or the Trust obtains from the SEC.  The Sub-Adviser agrees that all
     records that it maintains on behalf of the Portfolio are property of the
     Portfolio and the Sub-Adviser will surrender promptly to the Portfolio any
     of such records upon the Portfolio's request; provided, however, that the
     Sub-Adviser may retain a copy of such records.  In addition, for the
     duration of this Agreement, the  Sub-Adviser shall preserve for the periods
     prescribed by Rule  31a-2 under the 1940 Act any such records as are
     required to be maintained by it pursuant to this Agreement, and shall
     transfer said records to any 


                                          2
<PAGE>

     successor sub-adviser upon the termination of this Agreement (or, if there
     is no successor sub-adviser, to the Adviser).
     
(e)  The Sub-Adviser shall provide the Portfolio's custodian on each business
     day with information relating to all transactions concerning the
     Portfolio's Assets and shall provide the Adviser with such information upon
     request of the Adviser.
     
(f)  The investment management services provided by the Sub-Adviser under this
     Agreement are not to be deemed exclusive and the Sub-Adviser shall be free
     to render similar services to others, as long as such services do not
     impair the services rendered to the Adviser or the Trust.
     
(g)  The Sub-Adviser shall promptly notify the Adviser of any financial
     condition that is likely to impair the Sub-Adviser's ability to fulfill its
     commitment under this Agreement.

(h)  The Sub-Adviser shall review all proxy solicitation materials and be
     responsible for voting and handling all proxies in relation to the
     securities held in the Portfolio.  The Adviser shall instruct the custodian
     and other parties providing services to the Portfolio to promptly forward
     misdirected proxies to the Sub-Adviser.
 
     Services to be furnished by the Sub-Adviser under this Agreement may be
     furnished through the medium of any of the Sub-Adviser's partners, officers
     or employees.

2.   DUTIES OF THE ADVISER.  The Adviser shall continue to have responsibility
     for all services to be provided to the Portfolio pursuant to the Advisory
     Agreement and shall oversee and review the Sub-Adviser's performance of its
     duties under this Agreement; provided, however, that in connection with its
     management of the Assets, nothing herein shall be construed to relieve the
     Sub-Adviser of responsibility for compliance with the Trust's Declaration
     of Trust (as defined herein), the Prospectus, the instructions and
     directions of the Board of Trustees of the Trust, the requirements of the
     1940 Act, the Internal Revenue Code of 1986, and all other applicable
     federal and state laws and regulations, as each is amended from time to
     time.

3.   DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
     copies properly certified or authenticated of each of the following
     documents:

(a)  The Trust's Agreement and Declaration of Trust, as filed with the Secretary
     of State of the Commonwealth of Massachusetts (such Agreement and
     Declaration of Trust, as in effect on the date of this Agreement and as
     amended from time to time, herein called the "Declaration of Trust");
     
(b)  By-Laws of the Trust (such By-Laws, as in effect on the date of this
     Agreement and as amended from time to time, are herein called the
     "By-Laws");
     
(c)  Prospectus of the Portfolio.
     
4.   COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by the
     Sub-Adviser 


                                          3
<PAGE>

     pursuant to this Agreement, the Adviser will pay the Sub-Adviser, and the
     Sub-Adviser agrees to accept as full compensation therefor, a sub-advisory
     fee at the rate specified in the Schedule which is attached hereto and made
     part of this Agreement.  The fee will be calculated based on the average
     monthly market value of the Assets under the Sub-Adviser s management and
     will be paid to the Sub-Adviser monthly.  Except as may otherwise be
     prohibited by law or regulation (including any then current SEC staff
     interpretation), the Sub-Adviser may, in its discretion and from time to
     time, waive a portion of its fee.

5.   INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless the
     Adviser from and against any and all losses, liabilities or damages
     (including reasonable attorney's fees and other related expenses) howsoever
     arising from or in connection with the Sub-Adviser's failure to perform its
     obligations under this Agreement with the care, skill, prudence and
     diligence under the circumstances then prevailing that a prudent person
     acting in a like capacity and familiar with such matters would use in the
     conduct of an enterprise of a like character and with like aims; provided,
     however, that the Sub-Adviser s obligation under this Section 5 shall be
     reduced to the extent that the claim against, or the loss, liability or
     damage experienced by the Adviser, is caused by or is otherwise directly
     related to the Adviser's own willful misfeasance, bad faith or negligence,
     or to the reckless disregard of its duties under this Agreement. 

     In any determination of the Sub-Adviser's liability for indemnification
     under this Section 5 or otherwise, the investment and management decisions
     of the Sub-Adviser respecting individual assets and courses of action shall
     not be evaluated in isolation but in the context of the Portfolio taken as
     a whole and as part of an overall investment strategy having risk and
     return objectives reasonable suited to the Portfolio.  The conditions of
     the foregoing indemnity and hold harmless covenant are that (a) the
     indemnified persons shall inform the Sub-Adviser promptly of any claims
     threatened or made against any indemnified persons (b) the indemnified
     persons shall cooperate fully with the Sub-Adviser in responding to such
     threatened or actual claims, (c) any settlement agreement shall require the
     written approval of the Sub-Adviser, (d) the Sub-Adviser shall not be
     liable for any legal or other expenses incurred in connection with any
     threatened, pending or current actions, suit, proceeding or claim (of any
     nature whatsoever), or defense to any of the foregoing, that were not
     specifically authorized by the Sub-Adviser and (e) the Sub-Adviser shall
     not be liable for indemnification under this Section 5 as a result of any
     court, administrative or other action, suit, claim or proceeding in which
     it has not been made a party and been able to present its defense.  Nothing
     in this Agreement shall in any way constitute a waiver or limitation of any
     of the obligations which the Sub-Adviser may have under any federal
     securities laws.

6.   DURATION AND TERMINATION.  This Agreement shall become effective upon its
     approval by the Trust's Board of Trustees and by the vote of a majority of
     the outstanding voting securities of the Portfolio; provided, however, that
     at any time the Adviser shall have obtained exemptive relief from the
     Securities and Exchange Commission permitting it to engage a Sub-Adviser
     without first obtaining approval of the Agreement from a majority of the
     outstanding voting securities of the Portfolio involved, the Agreement
     shall become effective upon its approval by the Trust's Board of Trustees. 
     Any Sub-Adviser so selected and approved shall be without the protection
     accorded by shareholder approval of an investment adviser's receipt 


                                          4
<PAGE>

     of compensation under Section 36(b) of the 1940 Act.  

     This Agreement shall continue in effect for a period of more than two years
     from the date hereof only so long as continuance is specifically approved
     at least annually in conformance with the 1940 Act; provided, however, that
     this Agreement may be terminated with respect to the Portfolio (a) by the
     Portfolio at any time, without the payment of any penalty, by the vote of a
     majority of Trustees of the Trust or by the vote of a majority of the
     outstanding voting securities of the Portfolio, (b) by the Adviser at any
     time, without the payment of any penalty, on not more than 60 days' nor
     less than 30 days' written notice to the Sub-Adviser, or (c) by the
     Sub-Adviser at any time, without the payment of any penalty, on 90 days'
     written notice to the Adviser.  This Agreement shall terminate
     automatically and immediately in the event of its assignment, or in the
     event of a termination of the Adviser's agreement with the Trust.  As used
     in this Section 6, the terms "assignment" and "vote of a majority of the
     outstanding voting securities" shall have the respective meanings set forth
     in the 1940 Act and the rules and regulations thereunder, subject to such
     exceptions as may be granted by the SEC under the 1940 Act.

7.   GOVERNING LAW.  This Agreement shall be governed by the internal laws of
     the Commonwealth of Massachusetts, without regard to conflict of law
     principles; provided, however, that nothing herein shall be construed as
     being inconsistent with the 1940 Act.

8.   SEVERABILITY.  Should any part of this Agreement be held invalid by a court
     decision, statute, rule or otherwise, the remainder of this Agreement shall
     not be affected thereby.  This Agreement shall be binding upon and shall
     inure to the benefit of the parties hereto and their respective successors.

9.   NOTICE:  Any notice, advice or report to be given pursuant to this
     Agreement shall be deemed sufficient if delivered or mailed by registered,
     certified or overnight mail, postage prepaid addressed by the party giving
     notice to the other party at the last address furnished by the other party:

       To the Adviser at:               SEI Investments Management Corporation
                                        One Freedom Valley Road
                                        Oaks, PA 19456
                                        Attention:  Legal Department

       To the Sub-Adviser at:           Sanford C. Bernstein & Co., Inc.
                                        21st Floor
                                        767 5th Avenue
                                        New York, NY 10153-0185
                                        Attention: Dean Allen

                                        with a copy to: Kevin Brine
                                        (at the above address)

10.  ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
     understanding 


                                          5
<PAGE>

     between the parties hereto, and supersedes all prior agreements and
     understandings relating to this Agreement's subject matter.  This Agreement
     may be executed in any number of counterparts, each of which shall be
     deemed to be an original, but such counterparts shall, together, constitute
     only one instrument.

     A copy of the Declaration of Trust is on file with the Secretary of State
of the Commonwealth of Massachusetts, and notice is hereby given that the
obligations of this instrument are not binding upon any of the Trustees,
officers or shareholders of the Portfolio or the Trust.

     Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
SEC, whether of special or general application, such provision shall be deemed
to incorporate the effect of such rule, regulation or order.

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their officers designated below as of the day and year first written
above.

<TABLE>
<CAPTION>
<S>                                          <C>
SEI INVESTMENTS MANAGEMENT CORPORATION       SANFORD C. BERNSTEIN & CO., INC.
     
By:                                          By:
   /s/ Kevin P. Robins                       /s/ J. Philip Clark
   -------------------                       -------------------
 
Name:                                        Name:
Kevin P. Robins                                J. Philip Clark
- ---------------                                ---------------

Title:                                       Title:
    Vice President                             Vice President & Managing Director
    --------------                             ----------------------------------

</TABLE>


                                          6
<PAGE>


                                      SCHEDULE A
                                       TO THE 
                                SUB-ADVISORY AGREEMENT
                                       BETWEEN 
                        SEI INVESTMENTS MANAGEMENT CORPORATION
                                         AND
                           SANFORD C. BERNSTEIN & CO., INC.

Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

SEI Institutional Managed Trust
Large Cap Value Portfolio                    .  %
     
For purposes of calculating fees, the average monthly market value of the assets
of the Portfolio and such other related SEI large cap domestic equity portfolios
or accounts as the Sub-Adviser may now or in the future provide investment
sub-advisory services for (collectively, the "SEI Portfolios"), shall be
aggregated.  Further, if the combined value of the portion of the assets of the
SEI Portfolios allocated to the Sub-Adviser have not grown to $800 million by
December 31, 1998, the Adviser will pay to the Sub-Adviser the difference
between (i) an amount equal to 0.25% of the combined value of the portion of the
assets of the SEI Portfolios allocated to the Sub-Adviser on December 31, 1998
(the "12/31/98 Portfolio Value") and (ii) and amount calculated by multiplying
the 12/31/98 Portfolio Value by the fee rate determined in accordance with Fee
Schedule A set forth below.  The amount of such payment will be billed to the
Adviser by the Sub-Adviser during January 1999 and is due and payable when
billed.  The following Fee Schedules (A and B) will be in effect for all periods
commencing on and after December 31, 1998.

                                    FEE SCHEDULE A

          
Average Monthly Market Value of the combined           Annual Fee
assets of the Portfolios (Less than $800 million)           
     First $300,000,000                                     .    %
     Next $499,000,000                                      .    %

                                    FEE SCHEDULE B

Average Monthly Market Value of the combined           Annual Fee
assets of the Portfolios ($800 million or greater)               
     $800,000,000 and thereafter                            .   %


                                          7

<PAGE>

                        INVESTMENT SUB-ADVISORY AGREEMENT
                         SEI INSTITUTIONAL MANAGED TRUST


     AGREEMENT made this 1st day of April, 1996, between SEI Financial 
Management Corporation, (the "Adviser") and Merus-UCA Capital Management, a 
division of the Union Bank of California, N.A. (the "Sub-Adviser").

     WHEREAS, SEI Institutional Managed Trust, a Massachusetts business trust 
(the "Trust") is registered as an open-end management investment company 
under the Investment Company Act of 1940, as amended (the "1940 Act"); and

     WHEREAS, the Adviser has entered into an Investment Advisory Agreement 
dated December 16, 1994 (the "Advisory Agreement") with the Trust, pursuant 
to which the Adviser will act as investment adviser to the Equity Income and 
Large Cap Value Portfolios (the "Portfolio"), each a series of the Trust; and

     WHEREAS, the Adviser, with the approval of the Trust, desires to retain 
the Sub-Adviser to provide investment advisory services to the Adviser in 
connection with the management of the Portfolio, and the Sub-Adviser is 
willing to render such investment advisory services.

     NOW, THEREFORE, the parties hereto agree as follows:

1.   DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and 
     the Trust's Board of Trustees, the Sub-Adviser shall manage all of the 
     securities and other assets of the Portfolio entrusted to it hereunder 
     (the "Assets"), including the purchase, retention and disposition of the 
     Assets, in accordance with the Portfolio's investment objectives, 
     policies and restrictions as stated in the Portfolio's prospectus and 
     statement of additional information, as currently in effect and as 
     amended or supplemented from time to time (referred to collectively as 
     the "Prospectus"), and subject to the following:

     (a)  The Sub-Adviser shall, subject to the direction of the Adviser, 
     determine what Assets will be purchased, retained or sold by the 
     Portfolio, and what portion of the Assets will be invested or held 
     uninvested in cash.

     (b)  In the performance of its duties and obligations under this 
     Agreement, the Sub-Adviser shall act in conformity with the Trust's 
     Declaration of Trust (as defined herein) and the Prospectus and with the 
     written instructions and directions of the Adviser and of the Board of 
     Trustees of the Trust and will conform to and comply with the 
     requirements of the 1940 Act, the Internal Revenue Code of 1986, and all 
     other applicable federal and state laws and regulations, as each is 
     amended from time to time.

     (c)  The Sub-Adviser shall determine the Assets to be purchased or sold 
     by the Portfolio as provided in subparagraph (a) and will place orders 
     with or through such persons, brokers or dealers to carry out the policy 
     with respect to brokerage set forth in the Portfolio's Registration 
     Statement (as defined herein) and Prospectus or as the Board of Trustees 
     or the Adviser may direct from time to time, in conformity with federal 
     securities laws. In executing Portfolio transactions and selecting 
     brokers or dealers, the Sub-Adviser will use its best efforts to seek on 
     behalf of the Portfolio the best overall terms available. In assessing 
     the best overall terms available for any transaction, the Sub-Adviser 
     shall consider all factors that it deems relevant including the breadth


                                       1
<PAGE>

     of the market in the security, the price of the security, the financial 
     condition and execution capability of the broker or dealer, and the 
     reasonableness of the commission, if any, both for the specific 
     transaction and on a continuing basis. In evaluating the best overall 
     terms available, and in selecting the broker-dealer to execute a 
     particular transaction, the Sub-Adviser may also consider the brokerage 
     and research services provided (as those terms are defined in Section 
     28(e) of the Securities Exchange Act of 1934). Consistent with any 
     guidelines established by the Board of Trustees of the Trust, the 
     Sub-Adviser is authorized to pay to a broker or dealer who provides such 
     brokerage and research services a commission for executing a portfolio 
     transaction for the Portfolio which is in excess of the amount of 
     commission another broker or dealer would have charged for effecting 
     that transaction if, but only if, the Sub-Adviser determines in good 
     faith that such commission was reasonable in relation to the value of 
     the brokerage and research services provided by such broker or 
     dealer--viewed in terms of that particular transaction or terms of the 
     overall responsibilities of the Sub-Adviser to the Portfolio. In 
     addition, the Sub-Adviser is authorized to allocate purchase and sale 
     orders for securities to brokers or dealers (including brokers and 
     dealers that are affiliated with the Adviser, Sub-Adviser or the Trust's 
     principal underwriter) to take into account the sale of shares of the 
     Trust if the Sub-Adviser believes that the quality of the transaction 
     and the commission are comparable to what they would be with other 
     qualified firms. In no instance, however, will the Portfolio's Assets be 
     purchased from or sold to the Adviser, Sub-Adviser, the Trust's 
     principal underwriter, or any affiliated person of either the Trust, 
     Adviser, the Sub-Adviser or the principal underwriter, acting as 
     principal in the transaction, except to the extent permitted by the 
     Securities and Exchange Commission ("SEC") and the 1940 Act.

     (d)  The Sub-Adviser shall maintain all books and records with respect 
     to transactions involving the Assets required by subparagraphs (b)(5), 
     (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the 
     1940 Act. The Sub-Adviser shall provide to the Adviser or the Board of 
     Trustees such periodic and special reports, balance sheets or financial 
     information, and such other information with regard to its affairs as 
     the Adviser or Board of Trustees may reasonably request.

     The Sub-Adviser shall keep the books and records relating to the Assets 
     required to be maintained by the Sub-Adviser under this Agreement and 
     shall timely furnish to the Adviser all information relating to the 
     Sub-Adviser's services under this Agreement needed by the Adviser to 
     keep the other books and records of the Portfolio required by Rule 31a-1 
     under the 1940 Act. The Sub-Adviser shall also furnish to the Adviser 
     any other information relating to the Assets that is required to be 
     filed by the Adviser or the Trust with the SEC or sent to shareholders 
     under the 1940 Act (including the rules adopted thereunder) or any 
     exemptive or other relief that the Adviser or the Trust obtains from the 
     SEC. The Sub-Adviser agrees that all records that it maintains on behalf 
     of the Portfolio are property of the Portfolio and the Sub-Adviser will 
     surrender promptly to the Portfolio any of such records upon the 
     Portfolio's request; provided, however, that the Sub-Adviser may retain 
     a copy of such records. In addition, for the duration of this Agreement, 
     the Sub-Adviser shall preserve for the periods prescribed by Rule 31a-2 
     under the 1940 Act any such records as are required to be maintained by 
     it pursuant to this Agreement, and shall transfer said records to any 
     successor sub-adviser upon the termination of this Agreement (or, if 
     there is no successor sub-adviser, to the Adviser).

     (e)  The Sub-Adviser shall provide the Portfolio's custodian on each 
     business day with information relating to all transactions concerning 
     the Portfolio's Assets and shall provide the Adviser with such 
     information upon request of the Adviser.


                                       2
<PAGE>

     (f)  The investment management services provided by the Sub-Adviser 
     under this Agreement are not to be deemed exclusive and the 
     Sub-Adviser shall be free to render similar services to others, as long 
     as such services do not impair the services rendered to the Adviser or 
     the Trust.

     (g)  The Sub-Adviser shall promptly notify the Adviser of any financial 
     condition that is likely to impair the Sub-Adviser's ability to fulfill 
     its commitment under this Agreement.

     (h)  The Sub-Adviser shall review all proxy solicitation materials and 
     be responsible for voting and handling all proxies in relation to the 
     securities held in the Portfolio. The Adviser shall instruct the 
     custodian and other parties providing services to the Portfolio to 
     promptly forward misdirected proxies to the Sub-Adviser.

     Services to be furnished by the Sub-Adviser under this Agreement may be 
     furnished through the medium of any of the Sub-Adviser's partners, 
     officers or employees.

2.   DUTIES OF THE ADVISER.  The Adviser shall continue to have 
     responsibility for all services to be provided to the Portfolio pursuant 
     to the Advisory Agreement and shall oversee and review the Sub-Adviser's 
     performance of its duties under this Agreement; provided, however, that 
     in connection with it management of the Assets, nothing herein shall be 
     construed to relieve the Sub-Adviser of responsibility for compliance 
     with the Trust's Declaration of Trust (as defined herein), the 
     Prospectus, the instructions and directions of the Board of Trustees of 
     the Trust, the requirements of the 1940 Act, the Internal Revenue Code 
     of 1986, and all other applicable federal and state laws and 
     regulations, as each is amended from time to time.

3.   DELIVERY OF DOCUMENTS. The Adviser has furnished the Sub-Adviser with 
     copies properly certified or authenticated of each of the following 
     documents:

     (a)  The Trust's Agreement and Declaration of Trust, as filed with the 
     Secretary of State of the Commonwealth of Massachusetts (such Agreement 
     and Declaration of Trust, as in effect on the date of this Agreement and 
     as amended from time to time, herein called the "Declaration of Trust");

     (b)  By-Laws of the Trust (such By-Laws, as in effect on the date of 
     this Agreement and as amended from time to time, are herein called the 
     "By-Laws");

     (c)  Prospectus(es) of the Portfolio.

4.   COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by the 
     Sub-Adviser pursuant to this Agreement, the Adviser will pay the 
     Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation 
     therefor, a sub-advisory fee at the rate specified in the Schedule(s) 
     which is attached hereto and made part of this Agreement. The fee will 
     be calculated based on the average monthly market value of the Assets 
     under the Sub-Adviser's management and will be paid to the Sub-Adviser 
     monthly. Except as may otherwise be prohibited by law or regulation 
     (including any then current SEC staff interpretation), the Sub-Adviser 
     may, in its discretion and from time to time, waive a portion of its fee.

5.   LIMITATION OF LIABILITY OF THE SUB-ADVISER. The Sub-Adviser shall not be 
     liable for any error of judgment or for any loss suffered by the Adviser 
     in connection with performance of its obligations under this Agreement, 
     except a loss resulting from a breach of fiduciary duty with respect to 
     the


                                       3
<PAGE>

      receipt of compensation for services (in which case any award of 
      damages shall be limited to the period and the amount set forth in 
      Section 36(b)(3) of the 1940 Act), or a loss resulting from willful 
      misfeasance, bad faith or negligence on the Sub-Adviser's part in the 
      performance of its duties or from reckless disregard of its obligations 
      and duties under this Agreement, except as may otherwise be provided 
      under provisions of applicable state law which cannot be waived or 
      modified hereby.

6.    INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless the 
      Adviser from and against any and all claims, losses, liabilities or 
      damages (including reasonable attorney's fees and other related 
      expenses) howsoever arising from or in connection with the performance 
      of the Sub-Adviser's obligations under this Agreement; provided, 
      however, that the Sub-Adviser's obligation under this Section 6 shall 
      be reduced to the extent that the claim against, or the loss, liability 
      or damage experienced by the Adviser, is caused by or is otherwise 
      directly related to the Adviser's own willful misfeasance, bad faith or 
      negligence, or to the reckless disregard of its duties under this 
      Agreement.

      The Adviser shall indemnify and hold harmless the Sub-Adviser from and 
      against any and all claims, losses, liabilities or damages (including 
      reasonable attorney's fees and other related expenses) howsoever 
      arising from or in connection with the performance of the Adviser's 
      obligations under this Agreement; provided, however, that the Adviser's 
      obligation under this Section 6 shall be reduced to the extent that the 
      claim against, or the loss, liability or damage experienced by the 
      Sub-Adviser, is caused by or is otherwise directly related to the 
      Sub-Adviser's own willful misfeasance, bad faith or negligence, or to 
      the reckless disregard of its duties under this Agreement.

7.    DURATION AND TERMINATION.  This Agreement shall become effective upon 
      its approval by the Trust's Board of Trustees and by the vote of a 
      majority of the outstanding voting securities of the Portfolio. This 
      Agreement shall continue in effect for a period of more than two years 
      from the date hereof only so long as continuance is specifically 
      approved at least annually in conformance with the 1940 Act; provided, 
      however, that this Agreement may be terminated with respect to the 
      Portfolio (a) by the Portfolio at any time, without the payment of any 
      penalty, by the vote of a majority of Trustees of the Trust or by the 
      vote of a majority of the outstanding voting securities of the 
      Portfolio, (b) by the Adviser at any time, without the payment of any 
      penalty, on not more than 60 days' nor less than 30 days' written 
      notice to the Sub-Adviser, or (c) by the Sub-Adviser at any time, 
      without the payment of any penalty, on 90 days' written notice to the 
      Adviser. This Agreement shall terminate automatically and immediately 
      in the event of its assignment, or in the event of a termination of the 
      Adviser's agreement with the Trust. As used in this Section 7, the 
      terms "assignment" and "vote of a majority of the outstanding voting 
      securities" shall have the respective meanings set forth in the 1940 
      Act and the rules and regulations thereunder, subject to such 
      exceptions as may be granted by the SEC under the 1940 Act.

8.    GOVERNING LAW.  This Agreement shall be governed by the internal laws 
      of the Commonwealth of Massachusetts, without regard to conflict of law 
      principles; provided, however, that nothing herein shall be construed 
      as being inconsistent with the 1940 Act.

9.    SEVERABILITY.  Should any part of this Agreement be held invalid by a 
      court decision, statute, rule or otherwise, the remainder of this 
      Agreement shall not be affected thereby. This Agreement shall be 
      binding upon and shall inure to the benefit of the parties hereto and 
      their respective successors.


                                       4

<PAGE>

10.   NOTICE:  Any notice, advice or report to be given pursuant to this 
      Agreement shall be deemed sufficient if delivered or mailed by 
      registered, certified or overnight mail, postage prepaid addressed by 
      the party giving notice to the other party at the last address 
      furnished by the other party;

      To the Adviser at:                    SEI Financial Management Corporation
                                            680 East Swedesford Road
                                            Wayne, PA 19087
                                            Attention: Legal Department

      To the Sub-Adviser at:                Merus-UCA Capital Management
                                            475 Sansome Street
                                            San Francisco, CA 94111
                                            Attention: President

11.   ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and 
      understanding between the parties hereto, and supersedes all prior 
      agreements and understandings relating to this Agreement's subject 
      matter. This Agreement may be executed in any number of counterparts, 
      each of which shall be deemed to be an original, but such counterparts 
      shall, together, constitute only one instrument.

      A copy of the Declaration of Trust is on file with the Secretary of 
State of the Commonwealth of Massachusetts, and notice is hereby given that 
the obligations of this instrument are not binding upon any of the Trustees, 
officers or shareholders of the Portfolio or the Trust.

      Where the effect of a requirement of the 1940 Act reflected in any 
provision of this Agreement is altered by a rule, regulation or order of the 
SEC, whether of special or general application, such provision shall be 
deemed to incorporate the effect of such rule, regulation or order.

      IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be 
executed by their officers designated below as of the day and year first 
written above.


SEI Financial Management Corporation        Merus-UCA Capital Management, a 
                                            division of the Union Bank of 
                                            California, N.A.


By:                                      By:
        /s/ Kathryn L. Stanton                   /s/ Clark R. Gates
       --------------------------------         --------------------------------


Name:                                    Name:
        Kathryn L. Stanton                       Clark R. Gates
       --------------------------------         --------------------------------


Title:  Vice President                   Title:  President
       --------------------------------         --------------------------------


                                       5

<PAGE>

                                  SCHEDULE A
                                    TO THE
                            SUB-ADVISORY AGREEMENT
                                    BETWEEN
                     SEI FINANCIAL MANAGEMENT CORPORATION
                                      AND
 MERUS-UCA CAPITAL MANAGEMENT, A DIVISION OF THE UNION BANK OF CALIFORNIA, N.A.


Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at 
an annual rate as follows:

Equity Income Portfolio                  
Large Cap Value Portfolio                


                                       6


<PAGE>

                      INVESTMENT SUB-ADVISORY AGREEMENT
                       SEI INSTITUTIONAL MANAGED TRUST

    AGREEMENT made this 10th day of July, 1995, by and among SEI Financial
Management Corporation, (the "Adviser") and Sun Bank Capital Management, N.A.
(the "Sub-Adviser").

    WHEREAS, SEI Institutional Managed Trust, a Massachusetts business trust
(the "Trust") is registered as an open-end management investment company under
the Investment Company Act of 1940, as amended (the "1940 Act"); and

    WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated December 16, 1994 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Capital Appreciation
and Balanced Portfolios (the "Portfolio"), each a series of the Trust; and

    WHEREAS, the Adviser, with the approval of the Trust, desires to retain the
Sub-Adviser to provide investment advisory services to the Adviser in
connection with the management of the Portfolio, and the Sub-Adviser is willing
to render such investment advisory services.

    NOW, THEREFORE, the parties hereto agree as follows:

1.  DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and the
    Trust's Board of Trustees, the Sub-Adviser shall manage all of the
    securities and other assets of the Portfolio entrusted to it hereunder (the
    "Assets"), including the purchase, retention and disposition of the Assets,
    in accordance with the Portfolio's investment objectives, policies and
    restrictions as stated in the Portfolio's prospectus and statement of
    additional information, as currently in effect and as amended or
    supplemented from time to time (referred to collectively as the
    "Prospectus"), and subject to the following:

    (a)  The Sub-Adviser shall, in consultation with and subject to the
    direction of the Adviser, determine from time to time what Assets will be
    purchased, retained or sold by the Portfolio, and what portion of the
    Assets will be invested or held uninvested in cash.

    (b)  In the performance of its duties and obligations under this Agreement,
    the Sub-Adviser shall act in conformity with the Trust's Declaration of
    Trust (as defined herein) and the Prospectus and with the instructions and
    directions of the Adviser and of the Board of Trustees of the Trust and
    will conform to and comply with the requirements of the 1940 Act, the
    Internal Revenue Code of 1986, and all other applicable federal and state
    laws and regulations, as each is amended from time to time.

    (c)  The Sub-Adviser shall determine the Assets to be purchased or sold by
    the Portfolio and will place orders with or through such persons, brokers
    or dealers to carry out the policy with respect to brokerage set forth in
    the Portfolio's Registration Statement (as defined herein) and Prospectus or
    as the Board of Trustees or the Adviser may direct from time to time, in
    conformity with federal securities laws. In executing Portfolio
    transactions and selecting brokers or dealers, the Sub-Adviser will use its
    best efforts to seek on behalf of the Portfolio the best overall terms
    available. In assessing the best overall terms available for any
    transaction, the Sub-Adviser shall consider all factors that it deems
    relevant, including the breadth of the market in the security, the price of
    the security, the financial condition and execution capability of the
    broker or dealer, and

<PAGE>

    the reasonableness of the commission, if any, both for the specific
    transaction and on a continuing basis. In evaluating the best overall terms
    available, and in selecting the broker-dealer to execute a particular
    transaction the Sub-Adviser may also consider the brokerage and research
    services (as those terms are defined in Section 28(e) of the Securities
    Exchange Act of 1934) provided to the Portfolio and/or other accounts over
    which the Sub-Adviser or an affiliate of the Sub-Adviser may exercise
    investment discretion. The Sub-Advisor is authorized, subject to the prior
    approval of the Trust's Board of Trustees, to pay to a broker or dealer who
    provides such brokerage and research services a commission for executing a
    portfolio transaction for the Portfolio which is in excess of the amount of
    commission another broker or dealer would have charged for effecting that
    transaction if, but only if, the Sub-Adviser determines in good faith that
    such commission was reasonable in relation to the value of the brokerage
    and research services provided by such broker or dealer -- viewed in terms
    of that particular transaction or terms of the overall responsibilities of
    the Sub-Adviser to the Portfolio. In addition, the Sub-Adviser is
    authorized to allocate purchase and sale orders for securities to brokers
    or dealers (including brokers and dealers that are affiliated with the
    Adviser, Sub-Adviser or the Trust's principal underwriter) to take into
    account the sale of shares of the Trust if the Sub-Adviser believes that
    the quality of the transaction and the commission are comparable to what
    they would be with other qualified firms. In no instance, however, will the
    Portfolio's Assets be purchased from or sold to the Adviser, Sub-Adviser,
    the Trust's principal underwriter, or any affiliated person of either the
    Trust, Adviser, the Sub-Adviser or the principal underwriter, acting as
    principal in the transaction, except to the extent permitted by the
    Securities and Exchange Commission and the 1940 Act.

    (d)  The Sub-Adviser shall maintain all books and records with respect to
    transactions involving the Assets required by subparagraphs (b)(5), (6),
    (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the 1940 Act
    and shall render to the Adviser or Board of Trustees such periodic and
    special reports as the Adviser or Board of Trustees may reasonably request.

    The Sub-Adviser shall keep the books and records relating to the Assets
    required to be maintained by the Sub-Adviser under this Agreement and shall
    timely furnish to the Adviser all information relating to the Sub-Adviser's
    services under this agreement needed by the Adviser to keep the other
    books and records of the Portfolio required by Rule 31a-1 under the 1940
    Act. The Sub-Adviser shall also furnish to the Adviser any other
    information relating to the Assets that is required to be filed by the
    Adviser or the Trust with the Securities and Exchange Commission ("SEC") or
    sent to shareholders under the 1940 Act (including the rules adopted
    thereunder) or any exemptive or other relief that the Adviser or the Trust
    obtains from the SEC. The Sub-Adviser agrees that all records that it
    maintains on behalf of the Portfolio are property of the Portfolio and the
    Sub-Adviser will surrender promptly to the Portfolio any of such records
    upon the Portfolio's request; provided, however, that the Sub-Adviser may
    retain a copy of such records. In addition, for the duration of this
    Agreement, the Sub-Adviser shall preserve for the periods prescribed by
    Rule 31a-2 under the 1940 Act any such records as are required to be
    maintained by it pursuant to this Agreement, and shall transfer said
    records to any successor Sub-Adviser upon the termination of his Agreement
    (or, if there is no successor Sub-Adviser, to the Adviser).

    (e)  The Sub-Adviser shall provide to the Portfolio's custodian on each
    business day with information relating to all transactions concerning the
    Portfolio's Assets and shall provide the Adviser with such information upon
    request of the Adviser.

<PAGE>

    (f)  The investment management services provided by the Sub-Adviser under
    this Agreement are not to be deemed exclusive and the Sub-Adviser shall be
    free to render similar services to others, as long as such services do not
    impair the services rendered to the Adviser or the Trust.

    (g)  The Sub-Adviser shall promptly notify the Adviser of any financial
    condition that is likely to impair the Sub-Adviser's ability to fulfill its
    commitment under this Agreement.

    (h)  The Sub-Adviser shall review all proxy solicitation materials and be
    responsible for voting and handling all proxies in relation to the
    securities held in the Portfolio. The Adviser shall instruct the custodian
    and other parties providing services to the Portfolio to promptly forward
    misdirected proxies to the Sub-Adviser.

    Services to be furnished by the Sub-Adviser under this Agreement may be
    furnished through the medium of any of the Sub-Adviser's partners, officers
    or employees.

2.  DUTIES OF THE ADVISER.  The Adviser shall continue to have responsibility
    for all services to be provided to the Portfolio pursuant to the Advisory
    Agreement and shall oversee and review the Sub-Adviser's performance of its
    duties under this Agreement; provided, however, that nothing herein shall
    be construed to relieve the Sub-Adviser of responsibility for compliance
    with the Portfolio's investment objectives, policies, and restrictions, as
    provided in Section 1 hereunder, in connection with its management of the
    Assets.

3.  DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
    copies properly certified or authenticated of each of the following
    documents:

    (a)  The Trust's Agreement and Declaration of Trust, as filed with the
    Secretary of State of the Commonwealth of Massachusetts (such Agreement and
    Declaration of Trust, as in effect on the date of this Agreement and as
    amended from time to time, herein called the "Declaration of Trust");

    (b)  By-Laws of the Trust (such By-Laws, as in effect on the date of this
    Agreement and as amended from time to time, are herein called the
    "By-Laws");

    (c)  Prospectus(es) of the Portfolio.

4.  COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by the
    Sub-Adviser pursuant to this Agreement, the Adviser will pay the
    Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
    therefor, a sub-advisory fee at the rate specified in the Schedule(s) which
    is attached hereto and made part of this Agreement. The fee will be
    calculated based on the average monthly market value of the Assets under
    the Sub-Adviser's management and will be paid to the Sub-Adviser monthly.
    Except as may otherwise be prohibited by law or regulation (including any
    SEC staff current interpretation thereon), the Sub-Adviser may, in its
    discretion and from time to time, waive a portion of its fee.

5.  LIMITATION OF LIABILITY OF THE SUB-ADVISER.  The Sub-Adviser shall not be
    liable for any error of judgment or for any loss suffered by the Adviser in
    connection with performance of its obligations under this Agreement, except
    a loss resulting from a breach of fiduciary duty with respect to the
    receipt of compensation for services (in which case any award of damages
    shall be limited to the period and the amount set forth in Section 36(b)(3)
    of the 1940 Act), or a loss resulting from willful misfeasance, bad faith
    or negligence on the Sub-Adviser's part in the performance of its

<PAGE>

    duties or from reckless disregard of its obligations and duties under this
    Agreement, except as may otherwise be provided under provisions of
    applicable state law which cannot be waived or modified hereby.

6.  REPORTS.  During the term of this Agreement, the Adviser agrees to furnish
    the Sub-Adviser at its principal office all prospectuses, proxy statements,
    reports to stockholders, sales literature or other materials prepared for
    distribution to stockholders of the Portfolios, the Trust or the public
    that refer to the Sub-Adviser or its clients in any way prior to use
    thereof and not to use material if the Sub-Adviser reasonably objects in
    writing within five business days (or such other period as may be mutually
    agreed) after receipt thereof. The Sub-Adviser's right to object to such
    materials is limited to the portions of such materials that expressly
    relate to the Sub-Adviser, its services and its clients. The Adviser agrees
    to use its reasonable best efforts to ensure that materials prepared by its 
    employees or agents or its affiliates that refer to the Sub-Adviser or its 
    clients in any way are consistent with those materials previously approved 
    by the Sub-Adviser as referenced in the first sentence of this paragraph. 
    Sales literature may be furnished to the Sub-Adviser by first class or 
    overnight mail, facsimile transmission equipment or hand delivery.

7.  INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless the
    Adviser from and against any and all claims, losses, liabilities or damages
    (including reasonable attorney's fees and other related expenses) howsoever
    arising from or in connection with this Agreement or the performance by the
    Sub-Adviser of its duties hereunder; provided, however, that the
    Sub-Adviser shall not be required to indemnify or otherwise hold the
    Adviser harmless under this Section 7 where the claim against, or the loss,
    liability or damage experienced by the Adviser, is caused by or is
    otherwise directly related to the Adviser's own willful misfeasance, bad
    faith or negligence, or to the reckless disregard of its duties under this
    Agreement.

8.  DURATION AND TERMINATION.  This Agreement shall become effective upon its
    approval by the Trust's Board of Trustees and by the vote of a majority of
    the outstanding voting securities of the Portfolio; provided, however, that
    at any time the Adviser shall have obtained exemptive relief from the SEC
    permitting it to engage a Sub-Adviser without first obtaining approval of
    the Agreement from a majority of the outstanding voting securities of the
    Portfolio(s) involved, the Agreement shall become effective upon its
    approval by the Trust's Board of Trustees. Any Sub-Adviser so selected and
    approved shall be without the protection accorded by shareholder approval
    of an investment adviser's receipt of compensation under Section 36(b) of
    the 1940 Act.

    This Agreement shall continue in effect for a period of more than two years
    from the date hereof only so long as continuance is specifically approved
    at least annually in conformance with the 1940 Act; provided, however, that
    this Agreement may be terminated with respect to the Portfolio (a) by the
    Portfolio at any time, without the payment of any penalty, by the vote of a
    majority of Trustees of the Trust or by the vote of a majority of the
    outstanding voting securities of the Portfolio, (b) by the Adviser at any
    time, without the payment of any penalty, on not more than 60 days' nor
    less than 30 days' written notice to the Sub-Adviser, or (c) by the
    Sub-Adviser at any time, without the payment of any penalty, on 90 days'
    written notice to the Adviser. This Agreement shall terminate automatically
    and immediately in the event of its assignment, or in the event of a
    termination of the Adviser's agreement with the Trust. As used in this
    Section 8, the terms "assignment" and "vote of a majority of the
    outstanding voting securities" shall have the respective meanings set forth
    in the 1940 Act and the rules and regulations thereunder, subject to such
    exceptions as may be granted by the Commission under the 1940 Act.

<PAGE>

9.  GOVERNING LAW.  This Agreement shall be governed by the internal laws of
    the Commonwealth of Massachusetts, without regard to conflict of law
    principles; provided, however, that nothing herein shall be construed as
    being inconsistent with the 1940 Act.

10. SEVERABILITY.  Should any part of this Agreement be held invalid by a court
    decision, statute, rule or otherwise, the remainder of this Agreement shall
    not be affected thereby. This Agreement shall be binding upon and shall
    inure to the benefit of the parties hereto and their respective successors.

11. NOTICE.  Any notice, advice or report to be given pursuant to this
    Agreement shall be deemed sufficient if delivered or mailed by registered,
    certified or overnight mail, postage prepaid addressed by the party giving
    notice to the other party at the last address furnished by the other party:

    To the Adviser at:                   SEI Financial Management Corporation
                                         680 East Swedesford Road
                                         Wayne, PA 19087
                                         Attention: Legal Department

    To the Sub-Adviser at:               Sun Bank Capital Management, N.A.
                                         200 S. Orange Avenue
                                         SOAB 8
                                         Orlando, FL 32802
                                         Attention: President

12. ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
    understanding between the parties hereto, and supersedes all prior
    agreements and understandings relating to this Agreement's subject matter.
    This Agreement may be executed in any number of counterparts, each of which
    shall be deemed to be an original, but such counterparts shall, together,
    constitute only one instrument.

    A copy of the Declaration of Trust of the Trust is on file with the
Secretary of State of the Commonwealth of Massachusetts, and notice is hereby
given that the obligations of this instrument are not binding upon any of the
Trustees, officers, or shareholders of the Portfolio or the Trust.

    Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
Commission, whether of special or general application, such provision shall be
deemed to incorporate the effect of such rule, regulation or order.

    IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their officers designated below as of the day and year first
written above.

SEI Financial Management Corporation     Sun Bank Capital Management, N.A.

By:   /s/  Robert B. Carroll             By:     /s/ Elliott A. Perny
   ---------------------------------        -----------------------------------

Name:   Robert B. Carroll                Name:       Elliott A. Perny
     -------------------------------          ---------------------------------

Title:    Vice President                 Title: Senior Executive Vice President
      ------------------------------           --------------------------------

<PAGE>

                                 SCHEDULE A
                                   TO THE
                           SUB-ADVISORY AGREEMENT
                                   BETWEEN
                    SEI FINANCIAL MANAGEMENT CORPORATION
                                     AND
                      SUN BANK CAPITAL MANAGEMENT, N.A.

Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

Capital Appreciation Portfolio                         %
Balanced Portfolio                                     %



<PAGE>

                                                               Exhibit 99.B(6)


                           DISTRIBUTION AGREEMENT
                   TRUSTFUNDS INSTITUTIONAL MANAGED TRUST

    THIS AGREEMENT is made as of this 22nd day of January, 1987 between 
TrustFunds Institutional Managed Trust (the "Trust"), a Massachusetts 
business trust and SEI Financial Services Company (the "Distributor"), a 
Pennsylvania corporation.

    WHEREAS the Trust is registered as an investment company with the 
Securities and Exchange Commission ("SEC") under the Investment Company Act 
of 1940, as amended ("1940 Act"), and its Units are registered with the SEC 
under the Securities Act of 1933, as amended ("1933 Act"); and

    WHEREAS Distributor is registered as a broker-dealer with the SEC under 
the Securities Exchange Act of 1934, as amended;

    NOW, THEREFORE, in consideration of the mutual covenants hereinafter 
contained, the Trust and Distributor hereby agree as follows:

    ARTICLE 1. Sale of Units. The Trust grants to the Distributor the 
exclusive right to sell Units of the Trust at the net asset value per Unit, 
as agent and on behalf of the Trust, during the term of this Agreement and 
subject to the registration requirements of the 1933 Act, the rules and 
regulations of the SEC and the laws governing the sale of securities in the 
various states ("Blue Sky laws").

    ARTICLE 2. Solicitation of Sales. In consideration of these rights 
granted to the Distributor, the Distributor agrees to use all reasonable 
efforts, consistent with its other business, to obtain purchasers for Units 
of the Trust; provided, however, that the Distributor shall not be prevented 
from entering into like arrangements with other issuers. The provisions of 
this paragraph do not obligate the Distributor to register as a broker or 
dealer under the Blue Sky laws of any jurisdiction when it determines it 
would be uneconomical for it to do so or to maintain its registration in any 
jurisdiction in which it is now registered.

    ARTICLE 3. Authorized Representations. The Distributor is not authorized 
by the Trust to give any information or to make any representations other 
than those contained in the current registration statements and prospectuses 
of the Trust filed with the SEC or contained in Unitholder reports or other 
material that may be prepared by or on behalf of the Trust for the 
Distributor's use. The Distributor may prepare and distribute sales 
literature and other material as it may deem appropriate, provided that such 
literature and materials have been approved by the Trust prior to their use.

<PAGE>

    ARTICLE 4. Registration of Units. The Trust agrees that it will take all 
action necessary to register Units under the federal and state securities 
laws so that there will be available for sale the number of Units the 
Distributor may reasonably be expected to sell. The Trust shall make 
available to the Distributor such number of copies of its currently effective 
prospectus and statement of additional information as the Distributor may 
reasonably request. The Trust shall furnish to the Distributor copies of all 
information, financial statements and other papers which the Distributor may 
reasonably request for use in connection with the distribution of Units of the 
Trust.

    ARTICLE 5. Compensation. As compensation for the services performed and 
the expenses assumed by the Distributor under this Agreement, and to the 
extent provided in the Trust's Distribution Plan adopted in accordance with 
Rule 12b-1 under the 1940 Act, the Trust shall reimburse the Distributor for 
(i) the cost of prospectuses and statements of additional information, 
reports to Unitholders, sales literature and other materials for potential 
investors, (ii) the costs of complying with the Federal and state securities 
laws pertaining to the distribution of Units, (iii) advertising, and (iv) 
expenses incurred in promoting and selling Units, including expenses for 
travel, communication, and compensation and benefits of sales personnel. 
Separate and apart from the services and compensation provided for under this 
Agreement, the Distributor may retain additional compensation that it 
receives from the Trust on portfolio transactions that it effects for the 
Trust in accordance with applicable rules of the Securities and Exchange 
Commission.

    ARTICLE 6. Indemnification of Distributor. The Trust agrees to indemnify 
and hold harmless the Distributor and each of its directors and officers and 
each person, if any, who controls the Distributor within the meaning of 
Section 15 of the 1933 Act against any loss, liability, claim, damages or 
expense (including the reasonable cost of investigating or defending any 
alleged loss, liability, claim, damages, or expense and reasonable counsel 
fees and disbursements incurred in connection therewith), arising by reason 
of any person acquiring any Units, based upon the ground that the 
registration statement, prospectus, Unitholder reports or other information 
filed or made public by the Trust (as from time to time amended) included an 
untrue statement of a material fact or omitted to state a material fact 
required to be stated or necessary in order to make the statements made not 
misleading. However, the Trust does not agree to indemnify the Distributor or 
hold it harmless to the extent that the statement or omission was made in 
reliance upon, and in conformity with, information furnished to the Trust by 
or on behalf of the Distributor.

    In no case (i) is the indemnity of the Trust to be deemed to protect the 
Distributor or any person against any liability to the Trust or its 
Unitholders to which the Distributor or such

                                    2

<PAGE>

person otherwise would be subject by reason of willful misfeasance, bad faith 
or gross negligence in the performance of its duties or by reason of its 
reckless disregard of its obligations and duties under this Agreement, or 
(ii) is the Trust to be liable to the Distributor under the indemnity 
agreement contained in this paragraph with respect to any claim made against 
the Distributor or any person indemnified unless the Distributor or other 
person shall have notified the Trust in writing of the claim within a 
reasonable time after the summons or other first written notification giving 
information of the nature of the claim shall have been served upon the 
Distributor or such other person (or after the Distributor or the person 
shall have received notice of service on any designated agent). However, 
failure to notify the Trust of any claim shall not relieve the Trust from any 
liability which it may have to the Distributor or any person against whom 
such action is brought otherwise than on account of its indemnity agreement 
contained in this Paragraph.

    The Trust shall be entitled to Participate at its own expense in the 
defense or, if it so elects, to assume the defense of any suit brought to 
enforce any claims subject to this indemnity provision. If the Trust elects 
to assume the defense of any such claim, the defense shall be conducted by 
counsel chosen by the Trust and satisfactory to the indemnified defendants in 
the suit whose approval shall not be unreasonably withheld. In the event that 
the Trust elects to assume the defense of any suit and retain counsel, the 
indemnified defendants shall bear the fees and expenses of any additional 
counsel retained by them. If the Trust does not elect to assume the defense 
of a suit, it will reimburse the indemnified defendants for the reasonable 
fees and expenses of any counsel retained by the indemnified defendants.

    The Trust agrees to notify the Distributor promptly of the commencement of 
any litigation or proceedings against it or any of its officers or Trustees 
in connection with the issuance or sale of any of its Units.

    ARTICLE 7.  Indemnification of Trust.  The Distributor covenants and 
agrees that it will indemnify and hold harmless the Trust and each of its 
Trustees and officers and each person, if any, who controls the Trust within 
the meaning of Section 15 of the Act, against any loss, liability, damages, 
claim or expense (including the reasonable cost of investigating or defending 
any alleged loss, liability, damages, claim or expense and reasonable counsel 
fees incurred in connection therewith) based upon the 1933 Act or any other 
statute or common law and arising by reason of any person acquiring any 
Units, and alleging an wrongful act of the Distributor or any of its 
employees or alleging that the registration statement, prospectus, Unitholder 
reports or other information filed or made public by the Trust (as from time 
to time amended) including an untrue statement of a material fact or

                                       3



<PAGE>

omitted to state a material fact required to be stated or necessary in order 
to make the statements not misleading, insofar as the statement or omission 
was made in reliance upon and in conformity with information furnished to the 
Trust by or on behalf of the Distributor.

    In no case (i) is the indemnity of the Distributor in favor of the Trust 
or any other person indemnified to be deemed to protect the Trust or any 
other person against any liability to which the Trust or such other person 
would otherwise be subject by reason of willful misfeasance, bad faith or 
gross negligence in the performance of its duties or by reason of its 
reckless disregard of its obligations and duties under this Agreement, or 
(ii) is the Distributor to be liable under its indemnity agreement contained 
in this paragraph with respect to any claim made against the Trust or any 
person indemnified unless the Trust or person, as the case may be, shall have 
notified the Distributor in writing of the claim within a reasonable time 
after the summons or other first written notification giving information of 
the nature of the claim shall have been served upon the Trust or upon any 
person (or after the Trust or such person shall have received notice of 
service on any designated agent). However, failure to notify the Distributor 
of any claim shall not relieve the Distributor from any liability which it 
may have to the Trust or any person against whom the action is brought 
otherwise than on account of its indemnity agreement contained in this 
paragraph.

    The Distributor shall be entitled to participate, at its own expense, in 
the defense or, if it so elects, to assume the defense of any suit brought to 
enforce the claim, but if the Distributor elects to assume the defense, the 
defense shall be conducted by counsel chosen by the Distributor and 
satisfactory to the indemnified defendants whose approval shall not be 
unreasonably withheld. In the event that the Distributor elects to assume the 
defense of any suit and retain counsel, the defendants in the suit shall bear 
the fees and expenses of any additional counsel retained by them. If the 
Distributor does not elect to assume the defense of any suit, it will 
reimburse the indemnified defendants in the suit for the reasonable fees and 
expenses of any counsel retained by them.

    The Distributor agrees to notify the Trust promptly of the commencement 
of any litigation or proceedings against it in connection with the issue and 
sale of any of the Trusts' Units.

    ARTICLE 8.  Effective Date.  This Agreement shall be effective upon its 
execution, and unless terminated as provided, shall continue in force for one 
year from the effective date and the thereafter from year to year, provided 
that such annual continuance is approved by (i) either the vote of a majority 
of the Trustees of the Trust, or the vote of a majority of the outstanding 
voting securities of the Trust, and (ii) the vote of 

                                     4


<PAGE>

a majority of those Trustees of the Trust who are not parties to this 
Agreement or the Trust's Distribution Plan or interested persons of any such 
party ("Qualified Trustees"), cast in person at a meeting called for the 
purpose of voting on the approval. This Agreement shall automatically 
terminate in the event of its assignment. As used in this paragraph the terms 
"vote of a majority of the outstanding voting securities", "assignment" and 
"interested person" shall have the respective meanings specified in the 1940 
Act. In addition, this Agreement may at any time be terminated without 
penalty by SFS, by a vote of a majority of Qualified Trustees or by vote 
of a majority of the outstanding voting securities of the Trust upon not 
less than sixty days prior written notice to the other party.

    ARTICLE 9. Notices. Any notice required or permitted to be given by 
either party to the other shall be deemed sufficient if sent by registered or 
certified mail, postage prepaid, addressed by the party giving notice to the 
other party at the last address furnished by the other party to the party 
giving notice: if to the Trust, at 28 State Street, Boston, Massachusetts 
02109, and if to the Distributor, 680 E. Swedesford Road, Wayne, Pennsylvania 
19087.

    ARTICLE 10. Limitation of Liability. A copy of the Declaration of Trust 
of the Trust is on file with the Secretary of State of the Commonwealth of 
Massachusetts, and notice is hereby given that this Agreement is executed on 
behalf of the Trustees of the Trust as Trustees and not individually and that 
the obligations of this instrument are not binding upon any of the Trustees, 
officers or unitholders of the Trust individually but binding only upon the 
assets and property of the Trust.

    ARTICLE 11. Governing Law. This Agreement shall be construed in 
accordance with the laws of the Commonwealth of Massachusetts and the 
applicable provisions of the 1940 Act. To the extent that the applicable laws 
of the Commonwealth of Massachusetts, or any of the provisions herein, 
conflict with the applicable provisions of the 1940 Act, the latter shall 
control.

    ARTICLE 12. Multiple Originals. This Agreement may be executed in two or 
more counterparts, each of which when so executed shall be deemed to be an 
original, but such counterparts shall together constitute but one and the 
same instrument.

                                       5



<PAGE>


    IN WITNESS, the Trust and Distributor have each duly executed this 
Agreement, as of the day and year above written.


                                     TRUSTFUNDS INSTITUTIONAL MANAGED TRUST


                                     By:  /s/ Signature appears here
                                        ------------------------------------


                                     SEI FINANCIAL SERVICES COMPANY


                                     By:  /s/ Signature appears here
                                        ------------------------------------


                                       6


<PAGE>

                       SEI Institutional Managed Trust

                    SUPPLEMENT DATED MAY 10, 1989 TO THE

                  DISTRIBUTION AGREEMENT DATED JANUARY 22, 1987

    WHEREAS SEI Institutional Managed Trust (the "Trust") has been authorized 
to issue Class B units of beneficial interest ("Units") for certain 
portfolios of the Trust;

    WHEREAS the Trust has authorized the distribution of Class B Units by SEI 
Financial Services Company ("SFS") in accordance with the terms of the 
Distribution Agreement between the Trust and SFS dated January 22, 1987 (the 
"Agreement");

    WHEREAS the Trust and SFS wish to clarify the level of payments to be 
made by the Trust to SFS in connection with the distribution of Class B units;

NOW THEREFORE, THE Trust and SFS hereby agree that the Agreement is hereby 
supplemented as follows:

    1.  In addition to the reimbursement of expenses by the Trust to SFS as 
provided for by Article 5 of the Agreement, the Trust shall also make monthly 
payments to SFS on an annualized basis equal to .30% of the daily net assets 
of all Class B units issued and outstanding.

    2.  The payments provided by paragraph 1 immediately above are in 
addition to, and not in lieu of, any other payments provided for by the 
Agreement.

    3.  The payments provided by paragraph 1 immediately above shall be used 
by SFS in whole or in part to reimburse Class B unitholders which provide 
administrative services to their clients relating to the Trust.

                                      SEI Institutional Managed Trust

                                      By:  /s/ Signature appears here
                                          -----------------------------
                                          Vice President

                                      SEI Financial Services Company

                                      By:  /s/ Signature appears here
                                          -----------------------------
                                          Vice President


                                         7



<PAGE>

                              CUSTODIAN AGREEMENT

This Agreement, dated         day of               made by and between Trust 
Funds                             (the Fund), a business trust operating as 
an open end investment company, duly organized under the laws of the 
Commonwealth of Massachusetts and The Philadelphia National Bank (PNB), a 
national bank:

                                  WITNESSETH:

WHEREAS, the Fund desires to appoint The Philadelphia National Bank as 
custodian of its Securities and cash, and The Philadelphia National Bank is 
willing to act in such capacity upon the terms and conditions herein set 
forth; and

WHEREAS, The Philadelphia National Bank in its capacity as custodian 
hereunder will also collect and apply the dividends and interest on said 
Securities in the manner and to the extent herein set forth;

NOW, THEREFORE, in consideration of the premises and of the mutual covenants 
herein contained, the parties hereto, intending to be legally bound, do 
hereby agree as follows:

SECTION 1.  The terms as defined in this Section wherever used in this 
Agreement, or in any amendment or supplement hereto, shall have the meanings 
herein specified unless the context otherwise requires.

CUSTODIAN:  The term Custodian shall mean The Philadelphia National Bank in 
its capacity as custodian under this Agreement.

PROPER INSTRUCTIONS:  For purposes of this Agreement the Custodian shall be 
deemed to have received Proper Instructions upon receipt of written, 
telephone or telegraphic instructions from a person or persons reasonably 
believed by the Custodian to be a person or persons authorized from time to 
time by the trustees of the Fund or by the Board of Directors of an 
investment adviser for the Fund to give the particular class of instructions. 
Telephone or telegraphic instructions shall be confirmed in writing by such 
person or persons as said Trustees or said Board of Directors shall have from 
time to time authorized to give the particular class of instructions in 
question. The Custodian may act upon telephone or telegraphic instructions 
without awaiting receipt of written confirmation, and shall not be liable for 
Fund's or such investment adviser's failure to confirm such instructions in 
writing.

SECURITIES:  The term Securities shall mean bonds, debentures, notes, 
certificates of deposit, evidences of indebtedness, and other securities and 
investments from time to time owned by the Fund.

<PAGE>

SHAREHOLDERS:  The term Shareholders shall mean the registered owners from 
time to time of the Shares of the Fund in accordance with the registry 
records maintained by the Fund or agents on its behalf.

SHARES:  The term Shares of the Fund shall mean the shares of beneficial 
interest of the Fund.

SECTION 2.  The Fund shall from time to time file with the Custodian a 
certified copy of each resolution of its Board of Trustees authorizing the 
person or persons to give Proper Instructions (as defined in SECTION 1) and 
specifying the class of instructions that may be given by each person to the 
Custodian under this Agreement, together with certified signatures of such 
persons authorized to sign, which shall constitute conclusive evidence of the 
authority of the officers and signatories designed therein to act, and shall 
be considered in full force and effect with the Custodian fully protected in 
acting in reliance thereon until it receives written notice to the contrary; 
provided, however, that if the certifying officer is authorized to give 
Proper Instructions, the certification shall be also signed by a second 
officer of the Fund.

SECTION 3.  The Fund hereby appoints the Custodian as custodian of the 
Securities of the Fund and cash from time to time on deposit hereunder, to be 
held by the Custodian and applied as provided in this Agreement. The 
Custodian hereby accepts such appointment subject  to the terms and 
conditions hereinafter provided. Such Securities and cash shall, however, be  
segregated from the assets of others and shall be and remain the sole 
property of the Fund and the Custodian shall have only the bare custody 
thereof. The Securities held by the Custodian shall, unless payable to 
bearer, be registered in the name of the Custodian or in the name of its 
nominee. Securities, excepting bearer securities, delivered from time to time 
to the Custodian upon purchase or otherwise shall in all cases be in due form 
for transfer or already registered as above provided.

SECTION 4.  The Fund will initially deposit with the Custodian the 
Securities owned by the Fund at the time this Agreement becomes effective. 
Thereafter the Fund will cause to be deposited with the Custodian additional 
Securities as the same are purchased or otherwise acquired from time to time.

The Fund will make an initial deposit of cash to be held and applied by the 
Custodian hereunder. Thereafter the Fund will cause to be deposited with the 
Custodian hereunder (i) the net proceeds of Securities sold from time to time 
and (ii) the applicable net assets value of Shares sold from time to time 
whether representing initial issue, other stock or reinvestments of dividends 
and/or distributions payable to Shareholders.


<PAGE>

The Fund warrants that it shall keep all of its Securities, similar 
investments, cash proceeds and other cash assets of the Fund in the custody 
of the Custodian, except where permitted to otherwise keep, deposit, loan, 
pledge or otherwise dispose of or maintain such assets in accordance with 
applicable law.

SECTION 5.  The Custodian will collect from time to time the dividends and 
interest on the Securities held by it hereunder and will deposit the same in 
the Fund's account. The Custodian is authorized to advance or pay out of said 
account accrued interest on bonds purchased and dividends on securities sold 
and like items. In the event that any dividends or interest payments are 
received by the Fund, the Fund will endorse to the Custodian, or cause to be 
endorsed, dividend and interest checks and will issue appropriate orders to 
the issuers  of the Securities to pay dividends and interest to the 
Custodian. Subject to proper reserves for interest owing on Securities sold 
and like items, the Custodian will disburse the money from time to time on 
deposit in the account to or upon the order of the Fund as it may from time 
to time direct in accordance with this Agreement.

SECTION 6.  The Custodian is hereby authorized and directed to disburse cash 
from time to time as follows:

     (a)  to pay the proper compensation and expenses of Custodian upon 
receipt of Proper Instructions;

     (b)  to transfer to the Transfer Agent or other dividend disbursing 
agent to pay dividends and/or distributions which may be authorized by the 
Fund upon receipt of Proper Instructions;

     (c)  to pay, or provide the Fund with money to pay, if any, taxes upon 
receipt of Proper Instructions;

     (d)  for the purpose of completing the purchase of Securities purchased 
by the Fund, upon receipt of (i) Proper Instructions specifying the 
Securities and stating the purchase price, and the name of the broker, 
investment banker or other party to or upon whose order the purchase price is 
to be paid; and (ii) upon receipt of such Securities by the Custodian or, in 
the case of a purchase of such Securities by the Custodian or, in the case of 
a purchase effected through a Securities System, in accordance with Section 8 
hereof; 

     (e)  for the purpose of redeeming or purchasing Shares upon receipt of 
Proper Instructions stating the applicable redemption amounts payable, to the 
Transfer Agent or other appropriate party;


<PAGE>

     (f)  for the purpose of paying over to the Transfer Agent or dividend 
disbursing agent such Amounts as may be stated in Proper Instructions, 
representing proceeds of the sale of warrants, rights, stock dividends, 
profit and increases in values of the Securities, as the Fund may determine 
to include in dividends and/or distributions on the Shares;

     (g)  for the purpose of paying in whole or in part any loan of the Fund
upon receipt of Proper Instructions directing payment and stating the
Securities, if any, to be received against payment;

     (h)  to pay interest, investment advisory or supervisory fees, 
administration, dividend and transfer agency fees and costs, compensation of 
personnel, or operating expenses (including, without limitation thereto, fees 
for legal purposes).  Before making any such payment or disbursement, 
however, the Custodian shall receive (and may conclusively rely upon) Proper 
Instructions requesting such payment or disbursement and stating that it is 
for one or more of the purposes hereinabove enumerated, provided that if the 
disbursement is for any other purposes, the instructions shall be in writing 
and shall state that the disbursement was authorized by resolution of the 
Board of Trustees of the Fund (a copy of which resolution shall be attached) 
and is for a proper purpose.

SECTION 7.  The Custodian is hereby authorized and directed to deliver 
Securities from time to time as follows:

      (a)  for the purpose of completing sales of Securities sold by the 
Fund, upon receipt of (i) the net proceeds of sale and (ii) Proper 
Instructions specifying the Securities sold and stating the amount to be 
received and the broker, investment banker or other party to or upon whose 
order the Securities are to be delivered;

      (b)  for the purpose of exchanging Securities for other Securities 
and/or cash upon timely receipt of (i) Proper Instructions stating Securities 
to be delivered and the Securities and/or cash to be received in exchange and 
the manner in which the exchange is to be made, and (ii) against receipt of 
the other Securities and/or cash as specified in the Proper Instructions;

      (c)  for the purpose of exchanging or converting Securities pursuant to 
their terms or pursuant to any plan of conversion, consolidation, 
recapitalization, reorganization, readjustment or otherwise, upon timely 
receipt of (i) Proper Instructions authorizing such exchange or conversion 
and stating the manner in which such exchange or conversion is to be made, 
and (ii) against receipt of the Securities, certificates of deposit, interim 
receipts, and/or cash to be received as specified in the Proper Instructions;

      (d)  for the purpose of presenting Securities for payment which have 
matured or have been called for redemption upon receipt of appropriate Proper 
Instructions and provided that the cash or other consideration is to be paid 
to the Custodian;

<PAGE>

      (e)  for the purpose of delivery of Securities upon redemption of 
Shares in kind, upon receipt of appropriate Proper Instructions; or

      (f)  for the purpose of depositing with the lender Securities to be 
held as collateral of a loan to the Fund upon receipt of Proper Instructions 
directing delivery to the lender and upon receipt of the proceeds of the loan.

SECTION 8.  The Custodian may deposit and/or maintain Securities owned by the 
Fund in a clearing agency Registered with the Securities and Exchange 
Commission under Section 17A of the Securities Exchange Act of 1934, which 
acts as a securities depository, or in the book-entry system authorized by 
the U.S. Department of the Treasury and certain Federal agencies, 
collectively referred to herein as "Securities System" in accordance with 
applicable Federal Reserve Board and Securities and Exchange Commission rules 
and regulations, if any, and subject to the following provisions:

      1)  The Custodian may keep Securities of the Fund in a Securities
          System provided that such Securities are represented in an account
          ("Account") of the Custodian in the Securities System which shall
          not include any assets of the Custodian other than assets held as
          a fiduciary, custodian, or otherwise for customers.

      2)  The records of the Custodian with respect to Securities of the
          Fund which are maintained in a Securities System shall identify
          by book-entry those Securities belonging to the Fund.

      3)  The Custodian shall pay for Securities purchased for the account
          of the Fund upon (i) receipt of advice from the Securities
          System that such Securities have been transferred to the Account,
          and (ii) the making of an entry on the records of the Custodian
          to reflect such payment and transfer for the account of the Fund.
          The Custodian shall transfer Securities sold for the account of
          the Fund upon (i) receipt of advice from the Securities System
          that payment for such Securities has been transferred to the 
          Account, and (ii) the making of an entry on the records of the 
          Custodian to reflect such transfer and payment for the account
          of the Fund. Copies of all advices from the Securities System 
          of transfers of Securities for the account of the Fund shall
          identify the Fund, be maintained for the Fund by the Custodian
          and be provided to the Fund at its request. The Custodian shall
          furnish the Fund confirmation of each transfer to or from the
          the account of the Fund in the form of a written advice or 
          notice and shall furnish to the Fund copies of daily transaction
          sheets reflecting each day's transaction for the account of the 
          Fund on the next business day.

<PAGE>

      4)  The Custodian shall provide the Fund with any report obtained
          by the Custodian on the Securities System's internal accounting
          control and procedures for safeguarding securities deposited in
          the Securities System.

      5)  The Custodian shall have received an initial certificate of the
          Secretary or an Assistant Secretary that the Trustees of the
          Fund have approved the initial use of a particular Securities
          System and the Custodian shall receive an annual certificate of
          the Secretary or an Assistant Secretary that the Trustees have
          reviewed the use by the Fund of such Securities System, as
          required in each case by Rule 17f-4 under the Investment Company
          Act of 1940, as amended.

      6)  Anything to the contrary in this Agreement notwithstanding, the
          Custodian shall be liable to the Fund for any loss or damage to
          the Fund resulting from use of the Securities System by reason of
          any negligence, misfeasance or misconduct of the Custodian or any
          any of its agents or of any of its or their employees or from any
          failure of the Custodian or any such agent to enforce effectively
          such rights as it may have against the Securities System; at the
          election of the Fund, it shall be entitled to be subrogated to the
          rights of the Custodian with respect to any claim against the 
          Securities System or any other person which the Custodian may have
          as a consequence of any such loss or damage if and to the extent
          that the Fund has not been made whole for any such loss or damage.

SECTION 9.  The Custodian's compensation shall be as set forth in Schedule A
hereto attached, or as shall be set forth in amendments to such schedule 
approved by the Fund and the Custodian.

SECTION 10.  The Custodian shall forward to the Fund proxies, proxy statements,
annual reports, conversion notices, call notices, or other notices or written 
materials sent to the registered owners of securities and actually received 
by the Custodian (hereafter referred to as "notices and materials"), 
excluding only certificates representing securities and dividend and interest 
payments. Responsibility for taking action thereon is the sole responsibility 
of the Fund and its investment advisor, and not the responsibility of the 
Custodian. Upon actual receipt by the Custodian of warrants or rights issued
in connection with the assets of the Fund, the Custodian shall enter on its 
ledgers appropriate notations indicating such receipt and shall forward 
notice thereof to the Fund, but shall have no obligation whatsoever to take 
any action of any kind with respect to such warrants or rights except upon 
receipt of Proper Instructions authorizing the exercise or sale of such 
warrants or rights.


<PAGE>

SECTION 11.  The Custodian assumes only the usual duties or obligations 
normally performed by custodians of mutual funds. It specifically assumes no 
responsibility for the management, investment or reinvestment of the 
Securities from time to time owned by the Fund whether or not on deposit 
hereunder, it being understood that the responsibility for the proper and 
timely management, investment and reinvestment of said securities shall be 
that of the Fund and its investment advisors.

In connection with its functions under this Agreement, the Custodian shall:

     (a)  obtain a "due bill" for dividends, interest or other distributions 
of the issuer, due the purchaser in connection with Securities delivered to 
the Custodian;

     (b)  render to the Fund a daily report of all monies received or paid on 
behalf of the Fund and such listings of Securities held by the Custodian for 
the account of the Fund as may from time to time be requested by the Fund.

     (c)  execute ownership and other certificates and affidavits for all 
Federal and State tax purposes in connection with the collection of bond and 
note coupons;

     (d)  present for payment on the date of payment all coupons and other 
periodic income items requiring presentation;

     (e)  monitor and record the collection of funds in accounts maintained 
by the Custodian, in the name of the Fund on the same day as received;

     (f)  in accordance with the manager's directions as to allocation of the 
securities to separate portfolios designated by the Fund, the Custodian shall 
maintain records showing the respective securities comprising each such 
portfolio.

     (g)  create, maintain and retain all records relating to its activities 
and obligations under this Agreement in such manner as will meet the 
obligations of the Fund with respect to said Custodian activities and 
obligations under generally accepted accounting principles.  All records 
maintained by the Custodian in connection with the performance of its duties 
under this Agreement will remain the property of the Fund and in the event of 
termination of this Agreement will be relinquished to the Fund.

If the Custodian does not receive payment for items due under subsection (a), 
(d), or (e) within a reasonable time after it has made proper demands for the 
same, it shall so notify the Fund in writing, including copies of all demand 
letters, any written responses thereto, and memoranda of all oral responses 
thereto and to telephonic demands, and await Proper Instructions; the 
Custodian shall not be obliged to take legal action for collection except by 
its consent and unless and until reasonably indemnified to its satisfaction. 
The Custodian shall also notify the Fund as soon as

<PAGE>

reasonably practicable whenever income due on Securities is not collected in 
due course.

The Custodian shall not be liable for any taxes, assessments, or governmental 
charges which may be levied or assessed upon the Securities held by it 
hereunder, or upon the income therefrom or otherwise whatsoever. The 
Custodian may pay any such tax, assessment or charge and reimburse itself out 
of the monies of the Fund or out of the Securities held hereunder.

SECTION 12.  No liability of any kind shall be attached to or incurred by the 
Custodian by reason of its custody of the funds, assets, or shares held by it 
from time to time under this Agreement, or otherwise by reason of its 
position as custodian hereunder except only for its own negligence, bad 
faith, or willful misconduct in the performance of its duties as specifically 
set forth in the Agreement. Without limiting the generality of the foregoing 
sentence, the Custodian:

     (a)  may rely upon the advice of counsel, who may be counsel for the 
Fund or for the Custodian, and upon statements or accountants, brokers and 
other persons believed by it in good faith to be experts in the matters upon 
which they are consulted; and for any action taken or suffered in good faith 
based upon such advice or statements the Custodian shall not be liable to 
anyone:

     (b)  shall not be liable for anything done or suffered to be done in 
good faith in accordance with any request or advice of, or based upon 
information furnished by, the Fund or its authorized officers or agents;

     (c)  is authorized to accept a certificate of the Secretary or Assistant 
Secretary of the Fund, or Proper Instructions, to the effect that a 
resolution in the form submitted has been duly adopted by its Board of 
Trustees or by the Shareholders, as conclusive evidence that such resolution 
has been duly adopted and is in full force and effect;

     (d)  may rely and shall be protected in acting upon any signature, 
written (including telegraph or other mechanical) instructions, request, 
letter of transmittal, certificate, option of counsel, statement, instrument, 
report, notice, consent, order, or other paper or document reasonably 
believed by it to be genuine and to have been signed, forwarded or presented 
by the purchaser, Fund or other proper party or parties.

SECTION 13.  The Fund, its successors and assigns hereby indemnify and hold 
harmless the Custodian, its successors and assigns, of and from any and all 
liability whatsoever arising out of or in connection with the Custodian's 
status, acts, or omissions under this Agreement, except only for liability 
arising out of the Custodian's own negligence, bad faith, or willful 
misconduct in the performance of

<PAGE>

its duties specifically set forth in this Agreement. Without limiting the 
generality of the foregoing, the Fund, its successors and assigns do hereby 
fully indemnify and hold harmless the Custodian, its successors and assigns, 
from any and all loss, liability, claims, demand, actions, suits and expenses 
of any nature as the same may arise from the failure of the Fund to comply 
with any law, rule, regulation or order of the United States, any State or 
any other jurisdiction, governmental Authority, body, or board relating to 
the sale, registration, qualification of shares of any beneficial interest in 
the Fund, or from the failure of the Fund to perform any duty or obligation 
under this Agreement.

Upon written request of the Custodian, the Fund shall assume the entire 
defense of any claim subject to the foregoing indemnity, or the joint defense 
with the Custodian of such claim, as the Custodian shall request.  The 
indemnities and defense provisions of this SECTION 13 shall indefinitely 
survive termination of this Agreement.

SECTION 14.  The Custodian shall provide the Fund, at such times at the Fund 
may reasonably require, with accountants' reports on the accounting system, 
internal accounting control and procedures for safeguarding securities, 
including securities deposited and/or maintained in a Securities System, 
relating to the services provided by the Custodian under this Agreement; such 
reports, which shall be of sufficient scope and in sufficient detail to 
provide reasonable assurance that any material inadequacies would be 
disclosed, shall state in detail material inadequacies disclosed by such 
examination, and, if there are no such inadequacies, shall so state.  
Notwithstanding the foregoing the Custodian shall not be required by the 
provisions of this Section 14 to have such a report, which is not required 
for other purposes, prepared by independent public accountants, unless the 
Fund agrees to reimburse the Custodian for the reasonable charges of such 
independent public accountants for preparing such report.

SECTION 15.  This Agreement may be amended from time to time without notice 
to or approval of the Shareholders by a supplemental agreement executed by 
the Fund and the Custodian and amending and supplementing this Agreement in 
the manner mutually agreed.

SECTION 16.  Either the Fund or the Custodian may give one hundred twenty 
(120) days written notice to the other of the termination of this Agreement, 
such termination to take effect a time specified in the notice.  In case such 
notice of termination is given either by the Fund or by the Custodian, the 
Trustees of the Fund shall, by resolution duly adopted, promptly appoint a 
Successor Custodian which Successor Custodian shall be a bank, trust company, 
or a bank and trust company in good standing, with legal capacity to accept 
custody of the securities of a mutual fund.  Upon receipt of written notice 
from the Fund of the appointment of such successor and upon receipt of Proper 
Instructions, the Custodian shall deliver such


<PAGE>

Securities and cash as it may then be holding hereunder directly to and only 
to the Successor Custodian.  Unless or until a Successor Custodian has been 
appointed as above provided, the Custodian then acting shall continue to act 
as Custodian under this Agreement.

Every Successor Custodian appointed hereunder shall execute and deliver an 
appropriate written acceptance of its appointment and shall thereupon become 
vested with the rights, powers, obligations and custody of its predecessor 
Custodian.  The Custodian ceasing to act shall nevertheless, upon request of 
the Fund and the Successor Custodian and upon payment of its charges and 
disbursements, execute an instrument in form approved by its counsel 
transferring to the Successor Custodian all the predecessor Custodian's 
rights, duties, obligations and custody.

In case the Custodian shall consolidate with or merge into any other 
corporation, the corporation remaining after or resulting from such 
consolidation or merger shall ipso facto, without the execution of filing of 
any papers or other documents, succeed to and be substituted for the 
Custodian with like effect as though originally named as such.

SECTION 17.  This Agreement shall take effect when assets of the Fund are 
first delivered to the Custodian.

SECTION 18.  This Agreement may be executed in two or more counterparts, each 
of which when so executed shall be deemed to be an original, but such 
counterparts shall together constitute but one and the same instrument.

SECTION 19.  The Custodian may, at any time or times appoint (and may at any 
time remove) and other bank or trust company which is itself qualified under 
the Investment Company Act of 1940, as amended, to act as a custodian, as its 
agent to carry out such of the provisions of this Agreement as the Custodian 
may from time to time direct, provided, however, that the appointment of such 
agent shall not relieve the Custodian of any of its responsibilities under 
this Agreement.

SECTION 20.  A copy of the Declaration of Trust of the Fund is on file with 
the Secretary of The Commonwealth of Massachusetts, and notice is hereby 
given that this instrument is executed on behalf of the Trustees of the Fund 
as Trustees and not individually and that the obligations of this instrument 
are not binding upon any of the Trustees, officers or shareholders of the 
Fund individually but binding only upon the assets and property of the Fund.

SECTION 21.  The Custodian shall create and maintain all records relating to 
its activities and obligations under this Agreement in such manner as will 
meet the obligations of the Fund under the Investment Company Act of 1940, 
with particular attention to Section

<PAGE>

31 thereof and Rules 31a-1 and 31a-2 thereunder, applicable Federal and state 
tax laws and any other law or administrative rules or procedures which may be 
applicable to the Fund.

Subject to security requirements of the Custodian applicable to its own 
employees having access to similar records within the Custodian and such 
regulations as to the conduct of such monitors as may be reasonably imposed 
by the Custodian after prior consultation with an officer of the Fund the 
books and records of the Custodian pertaining to its actions under this 
Agreement shall be open to inspection and audit at any reasonable times by 
officers of, attorneys for, and auditors employed by, the Fund.

SECTION 22.  Nothing contained in this Agreement is intended to or shall 
require the Custodian in any capacity hereunder to perform any functions or 
duties on any holiday or other day of special observance on which the 
Custodian is closed.  Functions or duties normally scheduled to be performed 
on such days shall be performed on, and as of, the next business day the 
Custodian is open.

SECTION 23.  This Agreement shall extend to and shall be binding upon the 
parties hereto and their respective successors and assigns; provided, 
however, that this Agreement shall not be assignable by the Fund without the 
written consent of the Custodian, or by the Custodian without the written 
consent of the Fund, authorized or approved by a resolution of its Board of 
Trustees.

IN WITNESS WHEREOF, the Fund and the Custodian have caused this Agreement to 
be signed by their respective officers as of the day and year first above 
written.

                                 TrustFunds


                                  By:
                                  -----------------------------------
                                      President




                                  THE PHILADELPHIA NATIONAL BANK


                                  By:
                                  -----------------------------------
                                      Vice President



<PAGE>

                                                             Exhibit 99.B(9)(a)


                              MANAGEMENT AGREEMENT
                      TRUSTFUNDS INSTITUTIONAL MANAGED TRUST


    THIS AGREEMENT is made as of this ____ day of __________, 1986 by and 
between TrustFunds Institutional Managed Trust (the "Trust"), a Massachusetts 
business trust, and SEI Financial Management Corporation (the "Manager"), a 
Delaware corporation.

    WHEREAS the Trust is a diversified open-end investment company 
registered under the Investment Company Act of 1940, as amended (the "1940 
Act"); and

    WHEREAS the Manager is willing to provide management, administrative, 
transfer agent and unitholder servicing services to the Trust's Short-Term 
Bond Portfolio, Intermediate-Term Bond Portfolio, Long-Term Bond Portfolio, 
Growth Portfolio, Value Portfolio, Equity Income Portfolio, Balanced 
Portfolio and such other portfolios as the Trust and the Manager may agree on 
("Portfolios"), on the terms and conditions hereinafter set forth;

    NOW, THEREFORE, in consideration of the promises and the covenants 
hereinafter contained, the Trust and the Manager hereby agree as follows:

    ARTICLE 1. Retention of the Manager. The Trust hereby retains the Manager 
to act as the Manager and Unitholder Servicing Agent of the Portfolios and to 
furnish the Portfolios with management, administrative, transfer agent and 
unitholder servicing services as set forth below. The Manager hereby accepts 
such employment to perform the duties set forth below. The Manager shall, for 
all purposes herein, be deemed to be an independent contractor and, unless 
otherwise expressly provided or authorized, shall have no authority to act 
for or represent the Trust in any way and shall not be deemed an agent of the 
Trust. All of the Manager's duties shall be subject always to the objective, 
policies and restrictions contained in the Trust's current registration 
statement under the 1940 Act, to the Trust's Declaration of Trust and 
By-Laws, to the provisions of the 1940 Act, and to any other guidelines that 
may be established by the Trust's Trustees. The Manager shall calculate the 
daily net asset value of the Portfolios in accordance with the procedures 
prescribed in the Trust's Registration Statement and such other procedures as 
may be established by the Trustees of the Trust.

    ARTICLE 2. Evaluation Services. The Manager shall oversee and monitor the 
performance of the Portfolios' investment advisers and shall furnish to the 
Trust such information, evaluations, analyses and opinions regarding said 
performance as the Trustees may, from time to time, reasonably request; 
provided, however, that the Manager shall have no authority to









<PAGE>

make and shall not make investment decisions for the Portfolios nor furnish 
any advice with respect to the desireability of making such investment 
decisions.

    ARTICLE 3.  Transfer Agent Services.  The Manager will act as Transfer 
Agent for the Portfolios and, as such, will record in an account (the 
"Account") the total number or units of beneficial interest ("Units") of each 
Portfolio issued and outstanding from time to time and will maintain Unit 
transfer records in which it will note the name and registered addresses of 
Unitholders, and the number of Units from time to time owned by each of them. 
Each Unitholder will be assigned one or more account numbers. The Manager is 
authorized to set up accounts and record transactions in the accounts on the 
basis of instructions received from Unitholders when accompanied by 
remittance in appropriate amount as provided in the Trust's then current 
prospectus. The Trust will not issue certificates representing its Units. 
Whenever Units are purchased or issued, the Manager shall credit the Account 
with the Units issued, and credit the proper number of Units to the 
appropriate Unitholder. Likewise, whenever the Manager has occasion to redeem 
Units owned by a Unitholder, the Trust authorizes the Manager to process the 
transaction by making appropriate entries in its Unit transfer records and 
debiting the Account.

    Upon receipt by the Trust's Wire Agent (currently the United States 
National Bank of Oregon) on behalf of the Manager of funds through the 
Federal Reserve wire system or conversion into Federal funds of funds 
transmitted by other means for the purchase of Units in accordance with the 
Trust's current prospectus, the Manager shall notify the Trust of such 
deposits on a daily basis. The Manager shall credit the Unitholder's account 
with the number of shares purchased according to the price of the Units in 
effect for such purchases determined in the manner set forth in the Trust's 
then current prospectus. The Manager shall process each order for the 
redemption of Units from or on behalf of a Unitholder, and shall cause cash 
proceeds to be wired in Federal funds. The requirements as to instruments of 
transfer and other documentation, the applicable redemption price and the 
time of payment shall be as provided in the then current prospectus, subject 
to such supplemental requirements consistent with such prospectuses as may be 
established by mutual agreement between the Trust and Manager. If the Manager 
or the Trust determines that a request for redemption does not comply with 
the requirements for redemption, the Manager shall promptly so notify the 
Unitholder, together with the reason therefor, and shall effect such 
redemption at the price next determined after receipt of documents complying 
with said standards. On each day that the Trust's custodian banks and the New 
York Stock Exchange are open for business ("Business Day"), the Manager shall 
notify the Custodian of the amount of cash or other assets required to meet 
payments made pursuant to the provisions of this paragraph, and the Trust 
shall instruct the Custodian to make available from

                                      2
<PAGE>

time to time sufficient funds or other assets therefor. The authority of the 
Manager to perform its responsibilities under this paragraph shall be 
suspended upon receipt by it of notification from the Securities and Exchange 
Commission or the Trustees of the suspension of the determination of the 
Trust's net asset value.

    In registering transfers, the Manager may rely upon the opinion of counsel 
in not requiring complete documentation, in registering transfers without 
inquiry into adverse claims, in delaying registration for purposes of such 
inquiry, or in refusing registration where in its judgment an adverse claim 
requires such refusal.

    The Trust warrants that it has or shall deliver to the Manager, as 
transfer agent:

        (a)  A copy of the Declaration of Trust of the Trust, incorporating
    all amendments thereto, certified by the Secretary or Assistant Secretary
    of the Trust;

        (b)  an opinion of counsel to the Trust with respect to (i) the 
    legality and continuing existence of the Trust, (ii) the legality of its
    outstanding Units of beneficial interest, and (iii) the number of Units
    authorized for issuance and stating that upon issuance they will be 
    validly issued and nonassessable; and

        (c)  The Trust's Secretary's or Assistant Secretary's certificate
    as to the authorized outstanding Units of the Trust, its address to which
    notices may be sent, the names and specimen signatures of its officers who
    are authorized to sign instructions or requests to the Manager on behalf
    of the Trust, and the name and address of legal counsel to the Trust. In
    the event of any future amendment or change in respect of any of the 
    foregoing, prompt written notification of such change shall be given by 
    the Trust to the Manager, together with copies of all relevant 
    resolutions, instruments or other documents, specimen signatures, 
    certificates, opinions to the like as the Manager may deem necessary or 
    appropriate.

    ARTICLE 4.  Dividend Disbursing Agent.  The Manager shall act as Dividend 
Disbursing Agent for the Trust and, as such, in accordance with the 
provisions of the Trust's Declaration of Trust and then current prospectus, 
shall prepare and wire or credit income and capital gains distributions to 
Unitholders. The Trust agrees that it shall promptly inform the Manager of 
the declaration of any dividend or distribution on its Units, and that on or 
before the payment date of a distribution, it shall instruct the Custodian to 
make available, at the instruction of the Dividend Disbursing Agent, 
sufficient funds for the cash

                                       3

<PAGE>

amount to be paid out. If a Unitholder is entitled to receive additional 
Units by virtue of any such distribution or dividend, appropriate credits 
will be made to the Unitholder's account.

   ARTICLE 5. Other Administrative Services. In addition to the services 
described above, the Manager shall perform or supervise the performance by 
others of other administrative services in connection with the operations of 
the Portfolios, and, on behalf of the Trust, will investigate, assist in the 
selection of and conduct relations with custodians, depositories, 
accountants, underwriters, brokers and dealers, corporate fiduciaries, 
insurers, banks and persons in any other capacity deemed to be necessary or 
desirable for the Portfolios' operation. The Manager shall provide the Trust 
with regulatory reporting and related bookkeeping services, all necessary 
office space, equipment, personnel compensation and facilities (including 
facilities for Unitholders' and Trustees' meetings) for handling the affairs 
of the Portfolios and such other services as the Manager shall, from time to 
time, determine to be necessary to perform its obligations under this 
Agreement. The Manager shall make reports to the Trust's Trustees concerning 
the performance of its obligations hereunder; furnish advice and 
recommendations with respect to other aspects of the business and affairs of 
the Portfolios as the Trust shall determine desirable, and shall provide the 
Portfolios' Unitholders with the reports described in the Trust's current 
prospectus. Also, the Manager will perform other services for the Trust as 
agreed from time to time, including, but not limited to, preparation and 
mailing of appropriate federal income tax forms; mailing the annual reports 
of the Trust; preparing an annual list of Unitholders; furnishing the Trust 
with such reports regarding the sale and redemption of Units as may be 
required in order to comply with federal and state securities law; and 
mailing notices of Unitholders' meetings, proxies and proxy statements, for 
all of which the Trust will pay the Manager's out-of-pocket expenses.

   ARTICLE 6. Allocation of Charges and Expenses.

   (A) The Manager. The Manager shall furnish at its own expense the 
executive, supervisory and clerical personnel necessary to perform its 
obligations under this Agreement. The Manager shall also provide the items 
which it is obligated to provide under this Agreement, and shall pay all 
compensation, if any, of officers of the Trust as well as all Trustees of the 
Trust who are affiliated persons of the Manager or any affiliated 
corporation; provided, however, that unless otherwise specifically provided, 
the Manager shall not be obligated to pay the compensation of any employee of 
the Trust retained by the Trustees of the Trust to perform services on behalf 
of the Trust.

   (B) The Trust. The Trust assumes and shall pay or cause to be paid all 
other expenses of the Trust not otherwise allocated herein, including, 
without limitation, organizational costs,

                                       4 
<PAGE>

taxes, expenses for legal and auditing services, the expenses of preparing 
(including typesetting), printing and mailing reports, prospectuses, 
statements of additional information, proxy solicitation material and 
notices to existing Unitholders, all expenses incurred in connection with 
issuing and redeeming Trust Units, the costs of custodial services, the cost 
of initial and ongoing registration of the Trust's Units under federal and 
state securities laws, fees and out-of-pocket expenses of Trustees who are 
not affiliated persons of the Manager of any affiliated corporation, 
insurance, interest, brokerage costs, litigation and other extraordinary or 
nonrecurring expenses, all fees and charges of investment advisers to the 
Trust, and distribution expenses in accordance with the Trust's Distribution 
Plan.

    ARTICLE 7.  Compensation Of The Manager

    (A)  Management Fee.  For the services to be rendered, the facilities 
furnished and the expenses assumed by the Manager pursuant to this Agreement, 
the Trust shall pay to the Manager compensation at an annual rate of ___% of 
the average daily net assets of each Portfolio other than the Short-Term 
Bond, Intermediate-Term Bond, Long-Term Bond, Growth, Value, Equity Income 
and Balanced Portfolios shall be as agreed upon by the parties to this 
Agreement.)  Such compensation shall be calculated and accrued daily, and 
paid to the Manager monthly (subject to any expenses to be borne by the 
Manager under Article 7(b) herein).  If this Agreement becomes effective 
subsequent to the first day of a month or terminates before the last day of a 
month, the Manager's compensation for that part of the month in which this 
Agreement is in effect shall be prorated in a manner consistent with the 
calculation of the fees as set forth above.  Payment of the Manager's 
compensation for the preceding month shall be made promptly after completion 
of the computations contemplated by paragraph (B) of this Article 7.

    (B)  Excess Expenses.  If the expenses of any Portfolio for any fiscal 
year (including fees and other amounts payable to the Manager, but excluding 
interest, taxes, brokerage costs, litigation and other extraordinary costs) 
as calculated every Business Day would exceed (i) an annual rate of ___% of a 
Portfolio's average daily net asset value (or, with respect to a Portfolio 
other than the Short-Term Bond, Intermediate-Term Bond, Long-Term Bond, 
Growth, Value, Equity Income and Balanced Portfolios, such other annual rate 
as agreed to by the parties to this Agreement), or (ii) the expense 
limitations imposed on investment companies by any applicable statute or 
regulatory authority of any jurisdiction in which units are qualified for 
offer and sale, the Manager shall bear such excess cost.  However, the 
Manager will not bear expenses of the Trust to an extent which would result 
in the Trust's inability to qualify as a regulated investment company under 
provisions of the Internal Revenue Code.  Payment of expenses by the Manager 
pursuant to 


                                     5



<PAGE>

this Article 7(B) shall be settled on a monthly basis (subject to fiscal year 
end reconciliation) by a reduction in the fee payable to Manager for such 
month pursuant to Article 7(A) above and, if such reduction shall be 
insufficient to offset such expenses, by reimbursing the Trust. Any excess 
expenses borne under Article 7(B)(i) (including any fees waived by the 
Manager) may be recovered by the Manager from the Trust when such recovery 
would not cause the Trust's expenses to exceed the expense limitation set 
forth in this paragraph.

    (C) Compensation from Transactions. The Trust hereby authorizes any 
entity or person associated with the Manager which is a member of a national 
securities exchange to effect any transaction on the exchange for the account 
of the Trust which is permitted by Section 11(a) of the Securities Exchange 
Act of 1934 and Rule 11a2-2(T) thereunder, and the Trust hereby consents to 
the retention of compensation for such transactions in accordance with Rule 
11a2-2(T)(a)(2)(iv).

    (D) Survival of Compensation Rates. All rights of compensation under this 
Agreement shall survive the termination of this Agreement.

    ARTICLE 8. Limitation of Liability of the Manager. The duties of the 
Manager shall be confined to those expressly set forth herein, and no implied 
duties are assumed by or may be asserted against the Manager hereunder. The 
Manager shall not be liable for any error of judgment or mistake of law or 
for any loss arising out of any investment or for any act or omission in 
carrying out its duties hereunder, except a loss resulting from willful 
misfeasance, bad faith or gross negligence in the performance of its duties, 
or by reason of reckless disregard of its obligations and duties hereunder, 
except as may otherwise be provided under provisions of applicable state law 
which cannot be waived or modified hereby. (As used in this Article 8, the 
term "Manager' shall include directors, officers, employees and other 
corporate agents of the Manager as well as that corporation itself.) So long 
as the Manager acts in good faith and with due diligence and without gross 
negligence, the Trust assumes full responsibility and shall indemnify the 
Manager and hold it harmless from and against any and all actions, suits and 
claims, whether groundless or otherwise, and from and against any and all 
losses, damages, costs, charges, reasonable counsel fees and disbursements, 
payments, expenses and liabilities (including reasonable investigation 
expenses) arising directly or indirectly out of said management and transfer, 
dividend disbursing and unitholder servicing agency relationship to the Trust 
or any other service rendered to the Trust hereunder. The indemnity and 
defense provisions set forth herein shall indefinitely survive the 
termination of this Agreement. The rights hereunder shall include the right 
to reasonable advances of defense expenses in the event of any pending or 
threatened litigation with respect to which indemnification hereunder may 
ultimately be merited. In

                                     6


<PAGE>

order that the indemnification provision contained herein shall apply, 
however, it is understood that if in any case the Trust may be asked to 
indemnify or hold the Manager harmless, the Trust shall be fully and promptly 
advised of all pertinent facts concerning the situation in question, and it is 
further understood that the Manager will use all reasonable care to identify 
and notify the Trust promptly concerning any situation which presents or 
appears likely to present the probability of such a claim for indemnification 
against the Trust, but failure to do so in good faith shall not affect the 
rights hereunder.

    The Manager may apply to the Trust at any time for instructions and may 
consult counsel for the Trust or its own counsel and with accountants and 
other experts with respect to any matter arising in connection with the 
Manager's duties, and the Manager shall not be liable or accountable for any 
action taken or omitted by it in good faith in accordance with such 
instruction or with the opinion of such counsel, accountants or other 
experts. Also, the Manager shall be protected in acting upon any document 
which it reasonably believes to be genuine and to have been signed or 
presented by the proper person or persons. Nor shall the Manager be held to 
have notice of any change of authority of any officer, employee or agent of 
the Trust until receipt of written notice thereof from the Trust.

    ARTICLE 9. Activities of the Manager. The services of the Manager 
rendered to the Trust are not to be deemed to be exclusive. The Manager is 
free to render such services to others and to have other businesses and 
interests. It is understood that Trustees, officers, employees and 
Unitholders of the Trust are or may be or become interested in the Manager, as 
directors, officers, employees and shareholders or otherwise and that 
directors, officers, employees and shareholders of the Manager and its 
counsel are or may be or become similarly interested in the Trust, and that 
the Manager may be or become interested in the Trust as a Unitholder or 
otherwise.

    ARTICLE 10. Duration and Termination of This Agreement. This Agreement, 
unless terminated sooner as provided herein, shall remain in effect for two 
years after the date of the Agreement and shall continue in effect for 
successive periods of one year if such continuance is specifically approved 
at least annually (i) by the Trustees of the Trust and (ii) by the vote of a 
majority of the Trustees of the Trust who are not parties to this Agreement 
or interested persons of any such party, cast in person at a Board of Trustees 
meeting called for the purpose of voting on such approval. This Agreement may 
be terminated at any time and without penalty by the Trustees of the Trust 
or by the Manager on not less than 30 days nor more than 60 days written 
notice to the other party hereto. Any notice under this Agreement shall be 
given in writing, addressed and delivered, or mailed postpaid, to the other 
party at the designated mailing address of such party.

                                  7
<PAGE>

    This Agreement shall not be assignable by either party without the written
consent of the other party.

    ARTICLE 11.  Amendments.  This Agreement may be amended by the parties 
hereto only if such amendment is specifically approved (i) by the vote of a 
majority of the Trustees of the Trust who are not parties to this Agreement 
or interested persons of any such party, cast in person at a Board of 
Trustees meeting called for the purpose of voting on such approval. For 
special cases, the parties hereto may amend such procedures set forth herein 
as may be appropriate or practical under the circumstances, and the Manager 
may conclusively assume that any special procedure which has been approved by 
the Trust does not conflict with or violate any requirements of its 
Declaration of Trust, By-Laws or prospectus, or any rule, regulation or 
requirement of any regulatory body.

    ARTICLE 12.  Trustees' Liability.  A copy of the Declaration of Trust of 
the Trust is on file with the Secretary of State of the Commonwealth of 
Massachusetts, and notice is hereby given that this instrument is executed on 
behalf of the Trustees of the Trust as Trustees and not individually and that 
the obligations of this instrument are not binding upon any of the Trustees, 
Officers or Unitholders of the Trust individually, but binding only upon the 
assets and property of the Trust.

    ARTICLE 13.  Certain Records.  The Manager shall maintain customary 
records in connection with its duties as specified in this Agreement. Any 
records required to be maintained and preserved pursuant to Rules 31a-1 and 
31a-2 under the 1940 Act which are prepared or maintained by the Manager on 
behalf of the Trust shall be prepared and maintained at the expense of the 
Manager, but shall be the property of the Trust and will be made available to 
or surrendered promptly to the Trust on request. In case of any request or 
demand for the inspection of such records by another party, the Manager shall 
notify the Trust and follow the Trust's instructions as to permitting or 
refusing such inspection; provided that the Manager may exhibit such records 
to any person in any case where it is advised by its counsel that it may be 
held liable for failure to do so, unless (in cases involving potential 
exposure only to civil liability) the Trust has agreed to indemnify the 
Manager against such liability.

    ARTICLE 14.  Definitions of Certain Terms.  The terms "interested person" 
and "affiliated person," when used in this Agreement, shall have the 
respective meanings specified in the 1940 Act and the rules and regulations 
thereunder, subject to such exemptions as may be granted by the Securities 
and Exchange Commission.


                                       8





<PAGE>

    ARTICLE 15.  Governing Law.  This Agreement shall be construed in 
accordance with the laws of the Commonwealth of Massachusetts and the 
applicable provisions of the 1940 Act. To the extent that the applicable Laws 
of the Commonwealth of Massachusetts, or any of the provisions herein, 
conflict with the applicable provisions of the 1940 Act, the latter shall 
control.

    ARTICLE 16.  Multiple Originals.  This Agreement may be executed in two 
or more counterparts, each of which when so executed shall be deemed to be an 
original, but such counterparts shall together constitute but one and the 
same instrument.

    IN WITNESS WHEREOF, the parties hereto have executed and delivered this 
Agreement as of the day and year first above written.

                                      TRUSTFUNDS INSTITUTIONAL MANAGED TRUST

                                      By
                                        -------------------------------------

                                      SEI FINANCIAL MANAGEMENT CORPORATION

                                      By
                                        -------------------------------------


                                       9




<PAGE>
 
                                                              Exhibit 99.B(9)(b)



                                  SCHEDULE C


                                 Fee Schedule
                           Mid-Cap Growth Portfolio
                                Management Fee
                                August 3, 1992
- --------------------------------------------------------------------------------

Mid-Cap Growth Portfolio                                     .50%



<PAGE>

                                  [Letterhead]


                                 January 28, 1987


TrustFunds Institutional Managed Trust
28 State Street
Boston, Massachusetts 02109

Gentlemen:

     You have requested our opinion regarding certain matters in connection 
with the issuance of shares of beneficial interest ("Shares") by TrustFunds 
Institutional Managed Trust (the "Trust"). We have examined the Trust's 
Agreement and Declaration of Trust and other documents relating to the 
authorization and issuance of the Shares of the Trust. Based upon this 
examination, we are of the opinion that:

     1.   All legal requirements have been complied with in the organization 
          of the Trust and it is now a validly existing unincorporated voluntary
          association under the laws of the Commonwealth of Massachusetts.

     2.   The Trust is authorized to issue an unlimited number of Shares, 
          without par value, in five series representing interests in the 
          Short-Term Bond Portfolio, Intermediate-Term Bond Portfolio, 
          Long-Term Bond Portfolio, Value Portfolio and Balanced Portfolio of 
          the Trust and in such other series as the Trustees may hereafter duly 
          authorize.

     3.   The unlimited number of unissued Shares which are currently being 
          registered under the Securities Act of 1933 may be legally and validly
          issued from time to time in accordance with the Trust's Agreement and
          Declaration of Trust and By-Laws and subject to compliance with the
          Securities Act of 1940, and applicable state laws regulating the sale 
          of securities; and 

     4.   When so issued, the Trust's Shares will be validly issued, fully 
          paid and nonaccessable by the Trust.

<PAGE>
KIRKPATRICK & LOCKHART
   TrustFunds Institutional Managed Trust
   January 26, 1987 
   Page 2 


     The Trust is an entity of the type commonly know as a "Massachusetts 
business trust." Under Massachusetts law, shareholders could, under certain 
circumstances, be held personally liable for the obligations of the Trust. The 
Agreement and Declaration of Trust states that creditors of, contractors with 
and claimants against the Trust shall look only to the assets of the Trust or 
a particular series of Shares for payment. It also requires that notice of 
such disclaimer be given in each note, bond, contract, certificate, 
undertaking or instrument made or issued by the Officers of the Trust or the 
Trustees on behalf of the Trust. The Agreement and Declaration of Trust 
further provides for indemnification out of the assets of a series for all 
loss and expense of any shareholder of that series held personally liable 
for the obligations of the Trust by virtue of ownership of Shares of that 
series. Thus, risk of a shareholder incurring financial loss on account of 
shareholder liability is limited to circumstances in which the series in 
which that person is a shareholder would be unable to meet its obligations.

     We hereby consent to the filing of this opinion in connection with 
Pre-Effective Amendment No. 1 to the Trust's Registration Statement of Form 
N-1A (File No. 33-9504) to be filed with the Securities and Exchange 
Commission. We also consent to the reference to our firm under the caption 
"Counsel and Independent Public Accountants" in each Prospectus filed as part 
of the Registration Statement.

                                       Very truly yours,

                                       KIRKPATRICK & LOCKHART



                                       By:  /s/Donald W. Smith
                                           -----------------------------------
                                           Donald W. Smith


<PAGE>









                       CONSENT OF INDEPENDENT ACCOUNTANTS



We hereby consent to the incorporation by reference in the Prospectuses and 
Statement of Additional Information constituting parts of this Post-Effective 
Amendment No. 28 to the registration statement on Form N-1A (the "Registration 
Statement") of our report dated November 25, 1997, relating to the financial 
statements and financial highlights appearing in the September 30, 1997 
Annual Report to Shareholders of SEI Institutional Managed Trust, which are 
also incorporated by reference into the Registration Statement.  We also 
consent to the references to us under the headings "Financial Statements" and 
"General Information" in the Prospectuses and under the headings "Experts" 
and "Financial Statements" in the Statement of Additional Information.



Price Waterhouse LLP


Philadelphia, PA
January 26, 1998



<PAGE>

                                                              Exhibit 99.B(16)


               SCHEDULE FOR COMPUTATION OF PERFORMANCE QUOTATION

    This schedule is included to illustrate how yield and total return will 
be calculated.

                                 a - b
                   Yield = 2[(----------- + 1)(6) -1]
                                   cd

       MID-CAP GROWTH
       --------------
    a = $   784,617.44
    b = $   188,064.64
    c = $21,211,856.437
    d = $        15.35
Yield =           2.21%

                     Total Return = P(1 + T)(2) = ERV

       P = $1,000
       n =  1
     ERV = $1,351.00
       T =  35.10%


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<PAGE>
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<NAME> SEI INSTITUTIONAL MANAGED TRUST
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<PAGE>
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<NAME> SEI INSTITUTIONAL MANAGED TRUST
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<TABLE> <S> <C>

<PAGE>
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<NAME> SEI INSTITUTIONAL MANAGED TRUST
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<TABLE> <S> <C>

<PAGE>
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<NAME> SEI INSTITUTIONAL MANAGED TRUST
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