SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
497, 1997-05-13
Previous: SWIFT ENERGY MANAGED PENSION ASSETS PARTNERSHIP 1989-D LTD, 10-Q, 1997-05-13
Next: SALOMON BROTHERS SERIES FUNDS INC, 497, 1997-05-13





<PAGE>
<PAGE>

Salomon Brothers
Institution
Investment Series



Prospectus

April 29, 1997



Money Market Fund
High Yield Bond Fund
Emerging Markets Debt Fund
Asia Growth Fund





- ---------------------------------
Salomon Brothers Asset Management
- ---------------------------------



<PAGE>
<PAGE>
                                           Salomon Brothers
                                           Institutional Investment Series
 
                                           -------------------------------------
 
7  WORLD TRADE CENTER  NEW YORK, NEW YORK 10048  (800) SALOMON OR (800) 725-6666
 
SALOMON BROTHERS INSTITUTIONAL INVESTMENT SERIES CONSISTS OF SALOMON BROTHERS
INSTITUTIONAL MONEY MARKET FUND (THE 'MONEY MARKET FUND'), SALOMON BROTHERS
INSTITUTIONAL HIGH YIELD BOND FUND (THE 'HIGH YIELD BOND FUND'), SALOMON
BROTHERS INSTITUTIONAL EMERGING MARKETS DEBT FUND (THE 'EMERGING MARKETS DEBT
FUND') AND SALOMON BROTHERS INSTITUTIONAL ASIA GROWTH FUND (THE 'ASIA GROWTH
FUND') (EACH, A 'FUND' AND COLLECTIVELY, THE 'FUNDS'). EACH OF THE FUNDS, EXCEPT
THE MONEY MARKET FUND, IS A NO-LOAD INVESTMENT PORTFOLIO OF SALOMON BROTHERS
INSTITUTIONAL SERIES FUNDS INC ('INSTITUTIONAL SERIES FUNDS'). THE MONEY MARKET
FUND IS A NO-LOAD INVESTMENT PORTFOLIO OF SALOMON BROTHERS SERIES FUNDS INC
('SERIES FUNDS'). INSTITUTIONAL SERIES FUNDS AND SERIES FUNDS ARE INDIVIDUALLY,
THE 'COMPANY,' AND COLLECTIVELY, THE 'COMPANIES.'
 
The MONEY MARKET FUND seeks as high a level of current income as is consistent
with liquidity and the stability of principal. The Fund seeks to achieve its
objective by investing in high-quality, short-term U.S. dollar denominated money
market instruments, and seeks to maintain a stable net asset value of $1.00 per
share. THERE IS NO ASSURANCE THAT THE MONEY MARKET FUND WILL MAINTAIN A STABLE
NET ASSET VALUE OF $1.00 PER SHARE. SHARES OF THE MONEY MARKET FUND ARE NEITHER
GUARANTEED NOR INSURED BY THE U.S. GOVERNMENT.
 
The HIGH YIELD BOND FUND seeks to maximize total return. The Fund seeks to
achieve its objective by investing primarily in a portfolio of high yield
fixed-income securities that offer a yield above that generally available on
debt securities in the four highest rating categories of the recognized rating
services.
 
The EMERGING MARKETS DEBT FUND seeks to maximize total return. The Fund seeks to
achieve its objective by investing at least 80% of its total assets in debt
securities of government, government related and corporate issuers located in
emerging market countries, and of entities organized to restructure outstanding
debt of such issuers.
 
The ASIA GROWTH FUND seeks long-term capital appreciation. The Fund seeks to
achieve its objective by investing at least 65% of its total assets in equity
and equity-related securities of Asian Companies (as defined in this
Prospectus).
       ------------------------------------------------------------------
 
THERE CAN BE NO ASSURANCE THAT ANY FUND WILL ACHIEVE ITS INVESTMENT OBJECTIVE
AND EACH OF THE FUNDS MAY EMPLOY CERTAIN INVESTMENT PRACTICES WHICH INVOLVE
SPECIAL RISK CONSIDERATIONS. EACH OF THE FUNDS, EXCEPT THE MONEY MARKET FUND,
MAY INVEST IN CERTAIN SECURITIES, COMMONLY REFERRED TO AS JUNK BONDS, WHICH
PRESENT A HIGH DEGREE OF RISK. SUCH LOWER-QUALITY SECURITIES INVOLVE
COMPARATIVELY GREATER RISKS, INCLUDING PRICE VOLATILITY AND THE RISK OF DEFAULT
IN THE TIMELY PAYMENT OF INTEREST AND PRINCIPAL, THAN HIGHER-QUALITY SECURITIES.
THE HIGH YIELD BOND FUND AND THE EMERGING MARKETS DEBT FUND ARE NOT LIMITED IN
THE PERCENTAGE OF THEIR ASSETS WHICH MAY BE INVESTED IN SUCH SECURITIES. THE
ASIA GROWTH FUND MAY INVEST UP TO 10% OF ITS TOTAL ASSETS IN NON-CONVERTIBLE
SECURITIES OF THIS TYPE AND MAY INVEST WITHOUT LIMIT IN CONVERTIBLE SECURITIES
OF THIS TYPE. SEE 'ADDITIONAL INVESTMENT ACTIVITIES AND RISK FACTORS.'
 
This Prospectus sets forth concisely the information a prospective investor
should know before investing and should be read and retained for future
reference. A Statement of Additional Information dated April 29, 1997 has been
filed with the Securities and Exchange Commission (the 'SEC') and is
incorporated herein by reference. It is available without charge and can be
obtained by writing to the Funds at the address, or by calling the toll-free
telephone number, listed above.
       ------------------------------------------------------------------
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
 
          SALOMON BROTHERS ASSET MANAGEMENT INC -- INVESTMENT MANAGER
                      SALOMON BROTHERS INC -- DISTRIBUTOR
                                   PROSPECTUS
                                 APRIL 29, 1997
 
                                                                          Page 1
 
<PAGE>
<PAGE>
                             Table of Contents
- ----------------------------------------------
 
<TABLE>
<S>                                                                                                           <C>
Fee Table                                                                                                             3
 
Summary                                                                                                               4
 
Financial Highlights                                                                                                  5
 
Performance Information                                                                                               7
 
Investment Objective and Policies                                                                                     8
 
Additional Investment Activities and Risk Factors                                                                    20
 
Investment Limitations                                                                                               29
 
Purchase and Redemption of Shares                                                                                    31
 
Management                                                                                                           35
 
Dividends, Distributions and Taxes                                                                                   37
 
Account Services                                                                                                     40
 
Capital Stock                                                                                                        41
 
Appendix A:
Description of Ratings                                                                                              A-1
 
Appendix B:
General Characteristics and Risks of Derivatives                                                                    B-1
</TABLE>
 
Page 2
<PAGE>
<PAGE>
                                                                       Fee Table
 
                                           -------------------------------------
 
Information in the table below is given as a percentage of average daily net
assets. Shares of each Fund are sold without imposition by the Fund of any
front-end sales charge, contingent deferred sales charge or any other
transaction fee. Under certain circumstances, certain broker/dealers may impose
transaction fees on the purchase and/or sale of Fund shares. See 'Purchase and
Redemption of Shares.'
 
<TABLE>
<CAPTION>
                                                                                          HIGH     EMERGING
                                                                               MONEY     YIELD     MARKETS      ASIA
                                                                               MARKET     BOND       DEBT      GROWTH
ANNUAL FUND OPERATING EXPENSES                                                 FUND*     FUND**     FUND**     FUND**
<S>                                                                            <C>       <C>       <C>         <C>
- ---------------------------------------------------------------------------------------------------------------------
(as a % of average net assets):
Management Fee                                                                   .18%      .50%       .70%       .75%
                                                                                                       --
                                                                                                               ------
Other Expenses (after reimbursement)                                             .00%      .05%       .05%       .25%
                                                                                  --        --         --
                                                                                                               ------
Total Fund Operating Expenses (after reimbursement)                              .18%      .55%       .75%      1.00%
                                                                                  --        --         --      ------
                                                                                  --        --         --      ------
- ---------------------------------------------------------------------------------------------------------------------
EXAMPLE
The following table demonstrates the projected dollar amount of total cumulative expenses that would be 
incurred over various periods with respect to a hypothetical investment in each Fund. The example assumes
payment by each Fund of operating expenses at the levels set forth in the preceding table and  also makes
the following assumptions:
You would pay the following expenses on a $1,000 investment, assuming (i) a 5% annual return; and (ii) redemption
at the end of each time period:
</TABLE>
 
<TABLE>
<CAPTION>
                                         1 YEAR     3 YEARS     5 YEARS     10 YEARS
<S>                                      <C>        <C>         <C>         <C>
- -------------------------------------------------------------------------------------
Money Market Fund                        $2         $6          $10         $23
High Yield Bond Fund                     $6         $18         $31         $69
Emerging Markets Debt Fund               $8         $24         $42         $93
Asia Growth Fund                         $10        $32         $55         $122
</TABLE>
 
- --------------------------------------------------------------------------------
*   Reflects the voluntary waiver of management fees and reimbursement of
    certain expenses by Salomon Brothers Asset Management Inc ('SBAM'), the
    Fund's investment manager, for the fiscal year ended December 31, 1996.
    Absent such waiver and reimbursement, Management Fee, Other Expenses and
    Total Fund Operating Expenses would have been .20%, .26% and .46%,
    respectively. SBAM has voluntarily agreed to reduce or otherwise limit
    Total Fund Operating Expenses of the Money Market Fund (exclusive of taxes,
    interest and extraordinary expenses such as litigation and indemnification
    expenses), on an annualized basis, to .18% of the Fund's average daily net
    assets for a period of at least one year from the date of this Prospectus,
    and no more than .25% thereafter.
**  Restated to reflect the voluntary agreement by SBAM to reduce or otherwise
    limit Total Fund Operating Expenses (exclusive of taxes, interest and
    extraordinary expenses such as litigation and indemnification expenses) of
    the High Yield Bond Fund, Emerging Markets Debt Fund and Asia Growth Fund,
    on an annualized basis, to the amounts shown in the table above. The table
    below sets forth the ratio of Management Fees to average daily net assets,
    the ratio of Other Expenses to average daily net assets and the ratio of
    Total Fund Operating Expenses to average daily net assets for the fiscal
    year ended February 28, 1997 for each Fund. For this period, SBAM waived
    management fees and reimbursed certain expenses of each such Fund;
    therefore, the table reflects the actual expenses incurred as well as what
    such expenses would have been without such waiver and reimbursement.
 
<TABLE>
<CAPTION>
                                         WITH REIMBURSEMENT/WAIVER              WITHOUT REIMBURSEMENT/WAIVER
                                   -------------------------------------    -------------------------------------
                                     HIGH       EMERGING                      HIGH       EMERGING
                                     YIELD       MARKETS     ASIA GROWTH      YIELD       MARKETS     ASIA GROWTH
                                   BOND FUND    DEBT FUND       FUND        BOND FUND    DEBT FUND       FUND
<S>                                <C>          <C>          <C>            <C>          <C>          <C>
- -----------------------------------------------------------------------------------------------------------------
Management Fees                         --           --            --           .50%         .70%           .75%
Other Expenses                         .55%         .75%         1.00%         4.72%        6.87%          9.28%
Total Fund Operating Expenses          .55%         .75%         1.00%         5.22%        7.57%         10.03%
</TABLE>
 
- --------------------------------------------------------------------------------
 
The purpose of the foregoing table is to assist an investor in understanding
the various costs and expenses that an investor in a Fund will incur either
directly or indirectly. 'Other Expenses' include administrative fees, custodial
fees, legal and accounting fees, printing costs and registration fees. THE
EXAMPLE ABOVE SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE
EXPENSES AND ACTUAL EXPENSES FOR ANY OF THE FUNDS MAY BE HIGHER OR LOWER THAN
THE AMOUNTS SHOWN. Moreover, while the example assumes a 5% annual return, each
Fund's performance will vary and may result in a return greater or less than
5%. For more complete descriptions of the various costs and expenses borne by
the Funds, see 'Management' in this Prospectus and the Statement of Additional
Information.
 
                                                                          Page 3
 
<PAGE>
<PAGE>
                                       Summary
- ----------------------------------------------
 
THE FUNDS
 
Each of the Funds, except the Money Market Fund, is a no-load investment
portfolio of Salomon Brothers Institutional Series Funds Inc, an open-end
investment company incorporated in Maryland on January 19, 1996. The High Yield
Bond Fund is organized as a diversified series and the Emerging Markets Debt
Fund and the Asia Growth Fund are organized as non-diversified series of the
Institutional Series Funds. The Money Market Fund is organized as a no-load,
diversified investment series of Salomon Brothers Series Funds Inc, an open-end
investment company incorporated in Maryland on April 17, 1990.
 
The MONEY MARKET FUND seeks as high a level of current income as is consistent
with liquidity and the stability of principal. The Fund seeks to achieve its
objective by investing in high-quality, short-term U.S. dollar denominated
money market instruments, and seeks to maintain a stable net asset value of
$1.00 per share. THERE IS NO ASSURANCE THAT THE FUND WILL MAINTAIN A STABLE NET
ASSET VALUE OF $1.00 PER SHARE. SHARES OF THE FUND ARE NEITHER GUARANTEED NOR
INSURED BY THE U.S. GOVERNMENT.
 
The HIGH YIELD BOND FUND seeks to maximize total return. The Fund seeks to
achieve its objective by investing primarily in a portfolio of high yield
fixed-income securities that offer a yield above that generally available on
debt securities in the four highest rating categories of the recognized rating
services.
 
The EMERGING MARKETS DEBT FUND seeks to maximize total return. The Fund seeks
to achieve its objective by investing at least 80% of its total assets in debt
securities of government, government related and corporate issuers located in
emerging market countries, and of entities organized to restructure outstanding
debt of such issuers.
 
The ASIA GROWTH FUND seeks long-term capital appreciation. The Fund seeks to
achieve its objective by investing at least 65% of its total assets in equity
and equity-related securities of Asian Companies (as defined under 'Investment
Objective and Policies').
 
There can be no assurance that any Fund will achieve its investment objective.
 
PURCHASE AND REDEMPTION OF SHARES
 
The minimum initial investment in the Money Market Fund is $250,000 and the
minimum initial investment in the other Funds is $1,000,000. Each Fund may
waive minimum investment requirements at its discretion. There is no subsequent
investment minimum in any Fund. Each Fund reserves the right to reject any
purchase order. See 'Purchase and Redemption of Shares.'
 
MANAGEMENT SERVICES
 
Salomon Brothers Asset Management Inc ('SBAM'), an indirect, wholly-owned
subsidiary of Salomon Inc, serves as each Fund's investment manager. SBAM has
retained an affiliate, Salomon Brothers Asset Management Asia Pacific Limited
('SBAM AP'), to serve as sub-adviser to the Asia Growth Fund, subject to the
supervision of SBAM. See 'Management.'
 
DISTRIBUTOR
 
Salomon Brothers Inc ('Salomon Brothers'), also an indirect wholly-owned
subsidiary of Salomon Inc ('SI'), serves as each Fund's distributor.
 
RISK FACTORS
 
Prospective investors should consider certain risks associated with an
investment in each Fund.
 
The medium and low rated and comparable unrated securities in which the High
Yield Bond Fund and the Emerging Markets Debt Fund will invest (commonly
referred to as 'junk bonds') involve significantly greater risks than higher
rated securities, including price volatility and risk of default in
 
Page 4
 
<PAGE>
<PAGE>
payment of interest and principal. The Emerging Markets Debt Fund's investments
in securities of emerging market countries involves certain considerations not
typically associated with investing in securities of U.S. issuers, including
restrictions on foreign investment and on repatriation of capital, currency
fluctuations, price volatility and lesser liquidity or lack of a secondary
trading market, and political and economic risks, including the risk of
nationalization or expropriation of assets. The Asia Growth Fund is subject to
these same risks and concentration of the Fund's assets in one or a few of the
Asian countries and Asian currencies will subject the Fund, to a greater extent
than if the Fund's assets were less geographically concentrated, to the risks
of adverse changes in the securities and foreign exchange markets of such
countries and social, political or economic events which may occur in such
countries. Additionally, certain Funds may use various investment practices
that involve special considerations, including investing in illiquid
securities, zero coupon and deferred payment securities, loan participations
and assignments and warrants and engaging in repurchase and reverse repurchase
agreements and derivative transactions. See 'Investment Objective and Policies'
and 'Additional Investment Activities and Risk Factors.'
 
                                  Financial Highlights
                                  ---------------------------------------------
 
The following data per share of capital stock outstanding throughout each
period and ratios should be read in conjunction with the financial statements
included in the Statement of Additional Information. The financial statements
and financial highlights of the Money Market Fund for the period from December
7, 1990 (commencement of operations) through December 31, 1990 and for each of
the years in the period ended December 31, 1996, and the financial statements
and financial highlights of the High Yield Bond Fund for the period May 15,
1996 (commencement of operations) to February 28, 1997, for the Emerging
Markets Debt Fund for the period October 17, 1996 (commencement of operations)
to February 28, 1997 and for the Asia Growth Fund for the period May 6, 1996
(commencement of operations) to February 28, 1997, have been audited by Price
Waterhouse LLP, whose unqualified reports thereon are included in the Statement
of Additional Information.
 
<TABLE>
<CAPTION>
                                                                      Money Market Fund
                                                           YEAR ENDED DECEMBER 31,                        PERIOD ENDED
                                       ---------------------------------------------------------------    DECEMBER 31,
                                       1996(a)      1995       1994       1993       1992       1991         1990**
<S>                                    <C>         <C>        <C>        <C>        <C>        <C>        <C>
- ---------------------------------------------------------------------------------------------------------------------
Net asset value, beginning of year     $  1.000    $ 1.000    $ 1.000    $ 1.000    $ 1.000    $ 1.000      $  1.000
                                       --------    -------    -------    -------    -------    -------    ------------
Net investment income                     0.050*     0.049*     0.036      0.028      0.034      0.054*        0.005*
Dividends from net investment income     (0.050)    (0.049)    (0.036)    (0.028)    (0.034)    (0.054)       (0.005)
                                       --------    -------    -------    -------    -------    -------    ------------
Net asset value, end of year           $  1.000    $ 1.000    $ 1.000    $ 1.000    $ 1.000    $ 1.000      $  1.000
                                       --------    -------    -------    -------    -------    -------    ------------
                                       --------    -------    -------    -------    -------    -------    ------------
Net assets end of year (thousands)     $159,651    $11,425    $27,667    $34,120    $50,554    $35,414      $  4,596
Total investment return                    +5.1%      +5.0%      +3.6%      +2.9%      +3.4%      +5.5%         +0.5%
Ratios to average net assets:
    Expenses                               0.20%*     0.65%*     0.45%      0.35%      0.44%      0.54%*        0.74%*`D'
    Net investment income                  5.29%      4.89%      3.53%      2.83%      3.42%      5.23%         6.45%`D'
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>
 
(a)  The Fund changed its investment objective on April 29, 1996. Prior to
     April 29, 1996, the Fund was called the Salomon Brothers U.S. Treasury
     Securities Money Market Fund and invested principally in United States
     Treasury bonds, notes and bills.
*    Net investment income per share would have been $.048, $.049, $.052 and
     $.004 and the expense ratios to average net assets would have been .46%,
     .70%, .64% and 1.72%, respectively, for the periods ended December 31,
     1996, 1995, 1991 and 1990 before applicable waiver of management fee,
     expenses absorbed by SBAM and credits earned on custodian cash balances.
**   December 7, 1990, commencement of operations, through December 31, 1990.
`D'  Annualized.
 
                                                                          Page 5
 
<PAGE>
<PAGE>
FOR THE PERIOD ENDED FEBRUARY 28, 1997(a)(b)(c)
SELECTED  DATA PER  SHARE  OF  CAPITAL  STOCK  OUTSTANDING  THROUGHOUT  THE 
PERIOD:_________________________________________________________________________
 
<TABLE>
<CAPTION>
                                                                                HIGH       EMERGING
                                                                                YIELD       MARKET      ASIA GROWTH
                                                                              BOND FUND    DEBT FUND       FUND
                                                                              ---------    ---------    -----------
<S>                                                                           <C>          <C>          <C>
Net asset value, beginning of period.......................................    $ 10.00      $ 10.00       $ 10.00
                                                                              ---------    ---------    -----------
    Net investment income..................................................       0.57         0.35          0.04
    Net gain on investments (both realized and unrealized).................       0.93         0.78          0.91
                                                                              ---------    ---------    -----------
         Total from investment operations..................................       1.50         1.13          0.95
                                                                              ---------    ---------    -----------
    Dividends from net investment income...................................      (0.36)       (0.20)        (0.04)
    Distributions from net realized gain on investments....................      (0.01)       (0.02)        (0.04)
                                                                              ---------    ---------    -----------
         Total dividends and distributions.................................      (0.37)       (0.22)        (0.08)
                                                                              ---------    ---------    -----------
Net asset value, end of period.............................................    $ 11.13      $ 10.91       $ 10.87
                                                                              ---------    ---------    -----------
                                                                              ---------    ---------    -----------
Net assets, end of period (thousands)......................................    $ 6,575      $ 6,211       $ 4,942
Total return*..............................................................      +15.1%       +11.4%         +9.6%
Ratios to average net assets:
    Expenses...............................................................       0.55%**      0.75%**       1.00%**
    Net investment income..................................................       9.36%**      8.94%**       0.58%**
Portfolio turnover rate....................................................        151%         136%          133%
Average Broker Commission Rate.............................................        N/A          N/A       $0.0052
Before waiver of management fee, expenses absorbed by SBAM and credits
  earned from and fees waived by the custodian, net investment income
  (loss) per share and expense ratios would have been:
    Net investment income (loss) per share.................................      $0.29        $0.08        ($0.59)
    Expense ratio..........................................................       5.22%**      7.57%**      10.03%**
- -------------------------------------------------------------------------------------------------------------------
</TABLE>
 
(a) The High Yield Bond Fund's commencement of investment operations was May
    15, 1996.
(b) The Emerging Markets Debt Fund's commencement of investment operations was
    October 17, 1996.
(c) The Asia Growth Fund's commencement of investment operations was May 6,
    1996.
*   Total return is calculated assuming a $1,000 investment on the first day of
    each period reported, reinvestment of all dividends at the net asset value
    on the ex-dividend date, and a sale at net asset value on the last day of
    each period reported. Total return calculated for a period of less than one
    year is not annualized.
**  Annualized.


Page 6



<PAGE>

<PAGE>
                                                         Performance Information
 
                                           -------------------------------------
 
From time to time, a Fund may advertise its 'yield,' 'effective yield,'
'distribution rate' and / or standardized and nonstandardized 'average annual
total return' over various periods of time. Total return figures show the
average annual percentage change in value of an investment in a Fund from the
beginning date of the measuring period to the end of the measuring period.
These figures reflect changes in the price of the shares and assume that any
income dividends and/or capital gains distributions made by a Fund during the
period were reinvested in the Fund.
 
Standardized total return is calculated in accordance with the SEC's formula.
Nonstandardized total return differs from the standardized total return only in
that it may relate to a nonstandard period or is presented in the aggregate
rather than as an annual average.
 
Total return figures will be given for the most current one-, five- and
ten-year periods, or the life of a Fund to the extent it has not been in
existence for any such periods, and may be given for other periods as well,
such as on a year-by-year basis. When considering average total return figures
for periods longer than one year, it is important to note that the total return
for any one year in the period might have been greater or less than the average
for the entire period. 'Aggregate total return' figures may be used for various
periods, representing the cumulative change in value of an investment in Fund
shares for the specific period (again reflecting changes in share prices and
assuming reinvestment of dividends and distributions). Aggregate total return
may be shown by means of schedules, charts or graphs and may indicate subtotals
of the various components of total return (i.e., change in the value of initial
investment, income dividends and capital gains distributions).
 
Yield is calculated in accordance with the SEC's formula. Yield differs from
total return in that it does not consider changes in net asset value.
 
From time to time, the Money Market Fund may make available information as to
its 'yield' and 'effective yield.' Both yield figures are based on historical
earnings and are not intended to indicate future performance. The 'yield' of
the Money Market Fund refers to income generated by an investment in the Fund
over a seven-day period, which period will be stated in the advertisement. This
income is then 'annualized.' That is, the amount of income generated by the
investment during that week is assumed to be generated each week over a 52-week
period and is shown as a percentage of the investment. The 'effective yield' is
calculated similarly but, when annualized, the income earned by an investment
in the Fund is assumed to be reinvested. The effective yield will be slightly
higher than the yield because of the compounding effect of this assumed
reinvestment.
 
Distribution rate differs from yield in that it is calculated by dividing the
annualization of the most recent month's distribution by the maximum offering
price at the end of the month.
 
Furthermore, in reports or other communications to shareholders or in
advertising materials, performance of Fund shares may be compared with that of
other mutual funds or classes of shares of other mutual funds, as listed in the
rankings prepared by Lipper Analytical Services, Inc. or similar independent
services that monitor the performance of mutual funds, financial indices such
as the S&P 500 Index or other industry or financial publications including, but
not limited to, Bank Rate Monitor, Barron's, Business Week, CDA Investment
Technologies, Inc., Changing Times, Forbes, Fortune, ICB / Donoghue's Money
Fund Report, Institutional Investor, Investors Daily, Money, Morningstar Mutual
Fund Values, The New York Times, USA Today and The Wall Street Journal. The
yield of the Money Market Fund may also be compared to yields set forth in the
weekly statistical release H.15(519) or the monthly statistical release
designated G.13(415) published by the Board of Governors of the Federal Reserve
System. The annual report to shareholders of the Money Market Fund for the
fiscal year ended December 31, 1996 and the annual report to shareholders of
the High Yield Bond Fund, Emerging Markets Debt Fund and Asia Growth Fund for
the fiscal period ended February 28, 1997, containing additional performance
information is available without charge and can be obtained
 
                                                                          Page 7
 
<PAGE>
<PAGE>
by writing or calling the address or telephone number printed on the front
cover of this Prospectus. See 'Performance Data' in the Statement of Additional
Information.
 
             Investment Objective and Policies
- ----------------------------------------------
 
The  investment objective of each Fund is  deemed to be a fundamental policy and
may not be changed without the affirmative vote of the holders of a majority  of
its  outstanding shares, as  defined in the  Investment Company Act  of 1940, as
amended (the '1940 Act'). There can be  no assurance that any Fund will  achieve
its investment objective.
 
MONEY MARKET FUND
 
The investment objective of the Money Market Fund is to seek as high a level of
current income as is consistent with liquidity and the stability of principal.
The Fund invests in high-quality, short-term U.S. dollar-denominated money
market instruments which mature in thirteen months or less, with an average
portfolio maturity of all portfolio instruments (on a dollar-weighted basis) of
not more than 90 days. The Fund is classified as 'diversified' under the 1940
Act, and seeks to maintain a stable net asset value of $1.00 per share.
 
The instruments in which the Money Market Fund may invest include, but are not
limited to:
 
 -- Securities issued or guaranteed by the U.S. government or by agencies or
instrumentalities thereof;
 
 -- Obligations issued or guaranteed by U.S. and foreign banks ('Bank
Obligations');
 
 -- Commercial paper;
 
 -- Corporate debt obligations, including variable rate obligations;
 
 -- Short-term credit facilities;
 
 -- Asset-backed securities; and
 
 -- Other money market instruments.
 
The Money Market Fund will limit its portfolio investments to securities that
are determined by SBAM to present minimal credit risks pursuant to guidelines
established by the Fund's Board of Directors and which are 'Eligible
Securities' at the time of acquisition by the Fund. The term 'Eligible
Securities' includes: (i) securities rated in one of the two highest short-term
rating categories by: (a) any two nationally recognized statistical rating
organizations ('NRSROs') that have issued a rating with respect to a security
or class of debt obligations of an issuer; or (b) one NRSRO, if only one NRSRO
has issued such a rating at the time that the Fund acquires the security
(together, 'Requisite NRSROs'), (ii) securities of issuers that have received
such ratings with respect to other short-term debt securities and (iii)
comparable unrated securities. The Fund may not invest more than 5% of its
total assets in Eligible Securities that have not received the highest rating
from the Requisite NRSROs and comparable unrated securities ('Second Tier
Securities') and may not invest more than the greater of 1% of its total assets
or $1 million in the Second Tier Securities of any one issuer.
 
The Money Market Fund may also enter into repurchase agreements with respect to
the obligations identified above. While the maturity of the underlying
securities in a repurchase agreement transaction may be more than thirteen
months, the term of the repurchase agreement will always be less than thirteen
months. For a description of repurchase agreements and their associated risks,
see 'Additional Investment Activities and Risk Factors -- Repurchase
Agreements.'
 
Securities issued or guaranteed by the U.S. government or by its agencies or
instrumentalities include obligations of several kinds. Such securities in
general include a wide variety of U.S. Treasury
 
Page 8
 
<PAGE>
<PAGE>
obligations consisting of bills, notes and bonds, which principally differ only
in their interest rates, maturities and times of issuance. Securities issued or
guaranteed by U.S. government agencies and instrumentalities are debt
securities issued by agencies or instrumentalities established or sponsored by
the U.S. government and may be backed only by the credit of the issuing agency
or instrumentality. The Fund will invest in such obligations only where SBAM is
satisfied that the credit risk with respect to the issuer is minimal.
 
Bank Obligations that may be purchased by the Money Market Fund include
certificates of deposit, commercial paper, bankers' acceptances and fixed time
deposits. Fixed time deposits are obligations of branches of U.S. banks or
foreign banks which are payable at a stated maturity date and bear a fixed rate
of interest. Although fixed time deposits do not have a market, there are no
contractual restrictions on the right to transfer a beneficial interest in the
deposit to a third party. For a discussion of the risks associated with
investing in bank obligations, see 'Additional Information on Portfolio
Instruments and Investment Policies -- Bank Obligations' in the Statement of
Additional Information.
 
The Money Market Fund's investments in corporate debt securities consist of
non-convertible corporate debt securities such as bonds and debentures that
have thirteen months or less remaining to maturity.
 
The Fund may invest in U.S. dollar-denominated securities of non-U.S. issuers,
including obligations of non-U.S. banks or non-U.S. branches of U.S. banks and
commercial paper and other corporate debt securities of non-U.S. issuers, where
SBAM deems the instrument to present minimal credit risks. Investments in
non-U.S. banks and non-U.S. issuers present certain risks. See 'Additional
Investment Activities -- Foreign Securities.'
 
The Money Market Fund may invest in floating and variable rate obligations with
stated maturities in excess of thirteen months upon compliance with certain
conditions contained in Rule 2a-7 promulgated under the 1940 Act, in which case
such obligations will be treated, in accordance with Rule 2a-7, as having
maturities not exceeding thirteen months. Floating or variable rate obligations
bear interest at rates that are not fixed, but vary with changes in specified
market rates or indices, such as the prime rate, and at specified intervals.
Certain of the floating or variable rate obligations that may be purchased by
the Fund may carry a demand feature that would permit the holder to tender them
back to the issuer at par value prior to maturity. Such obligations include
variable rate master demand notes, which are unsecured instruments issued
pursuant to an agreement between the issuer and the holder that permit the
indebtedness thereunder to vary and provide for periodic adjustments in the
interest rate. The Fund will limit its purchases of floating and variable rate
obligations to those of the same quality as it otherwise is allowed to
purchase. SBAM will monitor on an ongoing basis the ability of an issuer of a
demand instrument to pay principal and interest on demand.
 
The Money Market Fund may also invest in variable amount master demand notes. A
variable amount master demand note differs from ordinary commercial paper in
that it is issued pursuant to a written agreement between the issuer and the
holder, its amount may from time to time be increased by the holder (subject to
an agreed maximum) or decreased by the holder or the issuer, it is payable on
demand, the rate of interest payable on it varies with an agreed formula and it
is not typically rated by a rating agency.
 
The Money Market Fund may enter into, or acquire participations in, short-term
borrowing arrangements with corporations, consisting of either a short-term
revolving credit facility or a master note agreement payable upon demand. Under
these arrangements, the borrower may reborrow funds during the term of the
facility. The Fund treats any commitments to provide such advances as a standby
commitment to purchase the borrower's notes.
 
                                                                          Page 9
 
<PAGE>
<PAGE>
The Money Market Fund may also purchase asset-backed securities. Asset-backed
securities represent defined interests in an underlying pool of assets. Such
securities may be issued as pass-through certificates, which represent
undivided fractional interests in the underlying pool of assets.
 
Alternatively, asset-backed securities may be issued as interests, generally in
the form of debt securities, in a special purpose entity organized solely for
the purpose of owning the underlying assets and issuing such securities. In the
latter case, such securities are secured by and payable from a stream of
payments generated by the underlying assets. The assets underlying asset-backed
securities are often a pool of assets similar to one another, such as motor
vehicle receivables or credit card receivables. Alternatively, the underlying
assets may be particular types of securities, various contractual rights to
receive payments and/or other types of assets. Asset-backed securities
frequently carry credit protection in the form of extra collateral,
subordinated certificates, cash reserve accounts, letters of credit or other
enhancements. Any asset-backed securities held by the Fund must comply with its
credit quality requirements and be deemed to have a maturity of thirteen months
or less in accordance with applicable regulations. See 'Additional Information
on Portfolio Instruments and Investment Policies' in the Statement of
Additional Information.
 
The Money Market Fund may also invest in high-quality, short-term municipal
obligations that carry yields that are competitive with those of other types of
money market instruments in which the Fund may invest. Dividends paid by the
Fund derived from interest on municipal obligations that may be purchased by it
will be taxable to shareholders for federal income tax purposes because the
Fund will not qualify as an entity that can pass through the tax-exempt
character of such interest.
 
The Money Market Fund may purchase securities on a firm commitment basis,
including when-issued securities and the Fund may invest in other investment
funds. See 'Additional Investment Activities and Risk Factors' for a
description of such securities and their associated risks. The Fund is not
currently authorized to use any of the various investment strategies referred
to under 'Additional Investment Activities and Risk Factors -- Derivatives.'
The foregoing investment policies, other than the Money Market Fund's
investment objective, are not fundamental policies and may be changed by vote
of the Board of Directors without the approval of shareholders.
 
Prior to April 29, 1996, the Fund was known as Salomon Brothers U.S. Treasury
Money Market Fund and invested primarily in United States Treasury bonds, bills
and notes.
 
HIGH YIELD BOND FUND
 
The High Yield Bond Fund's investment objective is to maximize total return.
The Fund seeks to achieve its objective by investing primarily in a portfolio
of high yield fixed-income securities that offer a yield above that generally
available on debt securities rated investment grade and which generally entail
increased credit and market risks. To mitigate these risks, the Fund will
diversify its holdings by issuer, industry and credit quality. The Fund is
diversified within the meaning of the 1940 Act.
 
The High Yield Bond Fund intends to invest, under normal market conditions, at
least 80% of its total assets in non-investment grade fixed-income securities,
(e.g., bonds, debentures, notes, equipment lease certificates, equipment trust
certificates, conditional sales contracts, commercial paper and other
obligations and preferred stock). The lower-rated bonds in which the Fund will
invest are commonly referred to as 'junk bonds.'
 
The debt obligations in which the Fund will invest generally will be rated, at
the time of investment, 'Ba' or 'B' or lower by Moody's Investors Service
('Moody's') or 'BB' or 'B' or lower by Standard & Poor's Ratings Group ('S&P'),
or determined by SBAM to be of comparable quality. Debt securities rated by
both Moody's and S&P need only satisfy the foregoing ratings standards with
respect to either the Moody's or the S&P rating. The Fund is not required to
dispose of a debt security if its credit rating or credit quality declines.
Medium and low-rated and comparable unrated
 
Page 10
 
<PAGE>
<PAGE>
securities offer yields that fluctuate over time, but generally are superior to
the yields offered by higher rated securities. However, such securities also
involve significantly greater risks, including price volatility and risk of
default in the payment of interest and principal, than higher rated securities.
Certain of the debt securities purchased by the Fund may be rated as low as 'C'
by Moody's or 'D' by S&P or may be considered comparable to securities having
such ratings. An investment in the High Yield Bond Fund should not be
considered as a complete investment program. For further discussion of high
yield securities and the special risks associated therewith, see 'Additional
Investment Activities and Risk Factors -- High Yield Securities.'
 
The High Yield Bond Fund may invest up to 10% of its total assets in securities
of foreign issuers and up to 5% of its total assets in foreign governmental
issuers in any one country. The foreign securities in which the High Yield Bond
Fund may invest, all or a portion of which may be non-U.S. dollar denominated,
include: (a) debt obligations issued or guaranteed by foreign national,
provincial, state, municipal or other governments with taxing authority or by
their agencies or instrumentalities, including Brady Bonds; (b) debt
obligations of supranational entities; (c) debt obligations of the U.S.
government issued in non-dollar securities; (d) debt obligations and other
fixed-income securities of foreign corporate issuers; and (e) U.S. corporate
issuers. There is no minimum rating criteria for the Fund's investments in such
securities. A description of Brady Bonds is set forth in the discussion of the
investment objective and policies of the Emerging Markets Debt Fund. The risks
associated with these investments are described under the captions 'Additional
Investment Activities and Risk Factors -- Foreign Securities' and ' -- High
Yield Securities.' Moreover, investments in foreign securities may have adverse
tax implications as described under 'Dividends, Distributions and Taxes.'
 
In light of the risks associated with high yield corporate and sovereign debt
securities, SBAM will take various factors into consideration in evaluating the
creditworthiness of an issuer. These will typically include the issuer's
financial resources, its sensitivity to economic conditions and trends, the
operating history of the issuer, and the experience and track record of the
issuer's management. SBAM will also review the ratings, if any, assigned to the
security by any recognized rating agencies, although SBAM's judgment as to the
quality of a debt security may differ from that suggested by the rating
published by a rating service. In addition to the foregoing credit analysis,
SBAM will evaluate the relative value of an investment compared with its
perceived credit risk. In selecting securities for the Fund, SBAM intends to
consider the correlation among securities represented in the Fund's portfolio
in an attempt to reduce the risk of exposure to market, industry and issuer
volatility. The High Yield Bond Fund's ability to achieve its investment
objective may be more dependent on SBAM's credit analysis than would be the
case if it invested in higher quality debt securities. A description of the
ratings used by Moody's and S&P is set forth in Appendix A to this Prospectus.
 
SBAM will be free to invest in high yield debt securities of any maturity and
may adjust the average maturity of the Fund's portfolio from time to time,
depending on SBAM's assessment of the relative yields available on securities
of different maturities and its expectations of future changes in interest
rates. Long-term debt securities generally provide a higher yield than
short-term debt securities, and therefore SBAM expects that, based upon current
market conditions, the Fund's high yield debt securities will initially have an
average maturity of 10 to 15 years.
 
The High Yield Bond Fund may invest in zero coupon securities, pay-in-kind
bonds and deferred payment securities, each which involve special risk
considerations. See 'Additional Investment Activities and Risk Factors -- Zero
Coupon Securities, Pay-in-Kind Bonds and Deferred Payment Securities.'
 
The High Yield Fund may also invest in fixed and floating rate loans ('Loans')
arranged through private negotiations between a corporate borrower or a foreign
sovereign entity and one or more financial institutions ('Lenders'). The Fund
may invest in such Loans in the form of participations in Loans ('Loan
Participations') and assignments of all or a portion of Loans from third parties
 
                                                                         Page 11
 
<PAGE>
<PAGE>
('Assignments'). See 'Additional Investment Activities and Risk Factors -- Loan
Participations and Assignments.'
 
The High Yield Fund may invest up to 10% of its total assets in either: (1)
equipment lease certificates, equipment trust certificates and conditional
sales contracts; or (2) limited partnership interests. The Fund may invest up
to 10% of its total assets in common stock, convertible securities, warrants or
other equity securities (other than preferred stock for which there is no
limit) when consistent with its investment objective. The Fund will generally
hold such equity investments as a result of purchases of unit offerings of
fixed-income securities which include such securities or in connection with an
actual or proposed conversion or exchange of fixed-income securities, but may
also purchase equity securities not associated with fixed-income securities
when, in the opinion of SBAM, such purchase is appropriate.
 
In order to maintain liquidity, the Fund may hold and/or invest up to 20% of
its total assets in cash and/or U.S. dollar denominated debt securities
including: (1) short-term (less than 12 months to maturity) and medium-term
(not greater than five years to maturity) obligations issued or guaranteed by
(a) the U.S. government or the government of a developed country, their
agencies or instrumentalities or (b) international organizations designated or
supported by multiple foreign governmental entities to promote economic
reconstruction or development ('supranational entities'); (2) finance company
obligations, corporate commercial paper and other short-term commercial
obligations, in each case rated or issued by companies with similar securities
outstanding that are rated 'Prime-1' or 'A' or better by Moody's or 'A-1' or
'A' or better by S&P or, if unrated, of comparable quality as determined by
SBAM; (3) obligations (including certificates of deposit, time deposits, demand
deposits and bankers' acceptances) of banks; and (4) repurchase agreements (as
discussed below under 'Additional Investment Activities and Risk
Factors -- Repurchase Agreements') with respect to securities in which the Fund
may invest. The Fund may invest its assets without limit in such instruments
for temporary defensive purposes in the event of adverse market conditions. To
the extent the Fund adopts such a temporary defensive position, it will not be
invested so as to directly achieve its investment objective.
 
The High Yield Bond Fund may enter into repurchase agreements and reverse
repurchase agreements, may purchase securities on a firm commitment basis,
including when-issued securities and may lend portfolio securities. The Fund
may also invest in investment funds. For a description of these investment
practices and the risks associated therewith, see 'Additional Investment
Activities and Risk Factors.'
 
The High Yield Bond Fund may purchase securities for which there is a limited
trading market or which are subject to restrictions on resale to the public.
The Fund will not invest more than 15% of the value of its total assets in
illiquid securities, such as 'restricted securities' which are illiquid, and
securities that are not readily marketable. See 'Additional Investment
Activities and Risk Factors -- Restricted Securities and Securities With
Limited Trading Markets.' As more fully described in the Statement of
Additional Information, the Fund may purchase certain restricted securities
('Rule 144A securities') for which there is a secondary market of qualified
institutional buyers as contemplated by Rule 144A under the Securities Act of
1933, as amended (the '1933 Act'). The Fund's holdings of Rule 144A securities
determined by SBAM to be liquid will not be subject to the 15% limitation on
investments in illiquid securities.
 
The High Yield Bond Fund is currently authorized to use all of the various
investment strategies referred to under 'Additional Investment Activities and
Risk Factors -- Derivatives.' It is not presently anticipated that any of these
strategies will be used to a significant degree by the Fund. The Fund's ability
to pursue certain of these strategies may be limited by applicable regulations
of the SEC, the Commodity Futures Trading Commission (the 'CFTC') and the
federal income tax requirements applicable to regulated investment companies.
Appendix B to this Prospectus and the Statement of
 
Page 12
 
<PAGE>
<PAGE>
Additional Information contain descriptions of these strategies and of certain
risks associated therewith.
 
The foregoing investment policies and activities, other than the High Yield
Bond Fund's investment objective, are not fundamental policies and may be
changed by vote of the Board of Directors without the approval of shareholders.
 
EMERGING MARKETS DEBT FUND
 
The investment objective of the Emerging Markets Debt Fund is to maximize total
return. The Fund seeks to achieve its objective by investing at least 80% of
its total assets in debt securities of government, government-related and
corporate issuers in emerging market countries and of entities organized to
restructure outstanding debt of such issuers. As used in this Prospectus, an
'emerging market country' is any country considered to be an emerging market
country by the World Bank at the time of investment. These countries generally
include every nation in the world except the United States, Canada, Japan,
Australia, New Zealand and most countries located in Western Europe. The Fund
is non-diversified within the meaning of the 1940 Act. See 'Additional
Investment Activities and Risk Factors -- Non-Diversification.'
 
The Emerging Markets Debt Fund expects that its investments in emerging market
country debt securities will be made primarily in some or all of the following
emerging market countries:
 
Algeria
Argentina
Brazil
Bulgaria
Chile
China
Colombia
Costa Rica
Czech Republic
Dominican Republic
Ecuador
Egypt
Greece
Hungary
India
Indonesia
Ivory Coast
Jamaica
Jordan
Lebanon
Malaysia
Mexico
Morocco
Nicaragua
Nigeria
Pakistan
Panama
Paraguay
Peru
Philippines
Poland
Portugal
Russia
Slovakia
Slovenia
South Africa
Thailand
Trinidad & Tobago
Tunisia
Turkey
Uruguay
Venezuela
Vietnam
Zaire
 
In selecting emerging market country debt securities for investment, SBAM will
apply a market risk analysis contemplating assessment of factors such as
liquidity, volatility, tax implications, interest rate sensitivity,
counterparty risks and technical market considerations. Currently, investing in
many emerging market country securities is not feasible or may involve
unacceptable risks. As opportunities to invest in debt securities in other
countries develop, the Fund expects to expand and further diversify the
emerging market countries in which it invests. While the Fund generally is not
restricted in the portion of its assets which may be invested in a single
country or region, it is anticipated that, under normal conditions, the Fund's
assets will be invested in issuers in at least three countries.
 
Emerging market country debt securities in which the Emerging Markets Debt Fund
may invest are U.S. dollar-denominated and non-U.S. dollar-denominated debt
securities, including bonds, notes, bills, debentures, convertible securities,
warrants, bank debt obligations, short-term paper, mortgage and other
asset-backed securities, preferred stock, Loan Participations and Assignments
and interests issued by entities organized and operated for the purpose of
restructuring the investment characteristics of instruments issued by emerging
market country issuers. The Fund is subject to no restrictions on the
maturities of the emerging market country debt securities in which it will
invest
 
                                                                         Page 13
 
<PAGE>
<PAGE>
and such maturities may range from overnight to thirty years. There is no limit
on the percentage of the Fund's assets that may be invested in non-U.S. dollar
denominated securities and a substantial portion of the Fund's assets may be
invested in non-U.S. dollar denominated securities. The amount of assets
invested in non-U.S. dollar denominated securities will vary depending upon
market conditions. The Fund may invest in Brady Bonds, which are debt
securities issued under the framework of the Brady Plan, an initiative
announced by former U.S. Treasury Secretary Nicholas F. Brady in 1989 as a
mechanism for debtor nations to restructure their outstanding external
indebtedness. For a description of Brady Bonds, see 'Additional Investment
Activities and Risk Factors -- High Yield Securities' herein and 'Additional
Information on Portfolio Instruments and Investment Policies -- Brady Bonds' in
the Statement of Additional Information. For a description of Loan
Participations and Assignments, see 'Additional Investment Activities and Risk
Factors -- Loan Participations and Assignments.'
 
Investments in securities of foreign issuers may involve risks arising from
differences between U.S. and foreign securities markets, including less volume,
much greater price volatility in and relative illiquidity of foreign securities
markets, different trading and settlement practices and less governmental
supervision and regulation, changes in currency exchange rates, high and
volatile rates of inflation, economic, social and political conditions and, as
with domestic multinational corporations, fluctuating interest rates. See
'Additional Investment Activities and Risk Factors -- Foreign Securities.'
 
The Fund's investments in government, government-related and restructured debt
securities will consist of: (i) debt securities or obligations issued or
guaranteed by governments, governmental agencies or instrumentalities and
political subdivisions located in emerging market countries (including
participations in loans between governments and financial institutions); (ii)
debt securities or obligations issued by government-owned, controlled or
sponsored entities located in emerging market countries (including
participations in loans between governments and financial institutions); and
(iii) interests in issuers organized and operated for the purpose of
restructuring the investment characteristics of instruments issued by any of
the entities described above. Such type of restructuring involves the deposit
with or purchase by an entity of specific instruments and the issuance by that
entity of one or more classes of securities backed by, or representing
interests in, the underlying instruments. Certain issuers of such structured
securities may be deemed to be 'investment companies' as defined in the 1940
Act. As a result, the Fund's investment in such securities may be limited by
certain investment restrictions contained in the 1940 Act. See 'Additional
Information on Portfolio Instruments and Investment Policies -- Structured
Investments' in the Statement of Additional Information. In addition to the
risks of investing in emerging market country debt securities, the Fund's
investment in government, government-related and restructured debt instruments
are subject to special risks, including the inability or unwillingness to repay
principal and interest, requests to reschedule or restructure outstanding debt,
and requests to extend additional loan amounts. The Fund may have limited
recourse in the event of default on such debt instruments. See 'Additional
Investments Activities and Risk Factors -- Foreign Securities' and ' -- High
Yield Securities.'
 
The Emerging Market Debt Fund's investments in debt securities of corporate
issuers in emerging market countries may include debt securities or obligations
issued by: (i) banks located in emerging market countries or by branches of
emerging market country banks located outside such country; or (ii) companies
organized under the laws of an emerging market country.
 
The securities in which the Fund will invest will not be required to meet a
minimum rating standard and may not be rated for creditworthiness by any
internationally recognized credit rating organization and generally the Fund's
investments are expected to be in the lower and lowest rating categories of
internationally recognized credit rating organizations or of comparable
quality. Such securities, commonly referred to as 'junk bonds,' involve
significantly greater risks, including price volatility and risk of default of
payment of interest and principal than higher rated securities. An investment
in the
 
Page 14
 
<PAGE>
<PAGE>
Emerging Markets Debt Fund should not be considered as a complete investment
program for all investors. See 'Additional Investment Activities and Risk
Factors -- Foreign Securities' and ' -- High Yield Securities.' Moreover,
substantial investments in foreign securities may have adverse tax implications
as described under 'Dividends, Distributions and Taxes.'
 
In light of the risks associated with high yield corporate and sovereign debt
securities, SBAM will take various factors into consideration in evaluating the
creditworthiness of an issuer. For corporate debt securities, such factors
typically include the issuer's financial resources, its sensitivity to economic
conditions and trends, the operating history of the issuer, and the experience
and track record of the issuer's management. For sovereign debt instruments,
these will typically include the economic and political conditions within the
issuer's country, the issuer's overall and external debt levels and debt
service ratios, the issuer's access to capital markets and other sources of
funding, and the issuer's debt service payment history. SBAM will also review
the ratings, if any, assigned to the security by any recognized rating
organizations, although SBAM's judgment as to the quality of a debt security
may differ from that suggested by the rating published by a rating service. In
addition to the foregoing credit analysis, SBAM will evaluate the relative
value of an investment compared with its perceived credit risk. In selecting
securities for the Emerging Markets Debt Fund, SBAM intends to consider the
correlation among securities represented in the Fund's portfolio in an attempt
to reduce the risk of exposure to market, industry and issuer volatility. The
Fund's ability to achieve its investment objective may be more dependent on
SBAM's credit analysis than would be the case if it invested in higher quality
debt securities. A description of the ratings used by Moody's and S&P is set
forth in Appendix A to this Prospectus.
 
The Emerging Markets Debt Fund may invest in zero coupon securities,
pay-in-kind bonds and deferred payment securities. The characteristics and
risks of these investments are described under 'Additional Investment
Activities and Risk Factors -- Zero Coupon Securities, Pay-in-Kind Bonds and
Deferred Payment Securities.'
 
The Emerging Markets Debt Fund may invest up to 10% of its total assets in
common stock, convertible securities, warrants or other equity securities when
consistent with the Fund's objective. The Fund will generally hold such equity
investments as a result of purchases of unit offerings of fixed-income
securities which include such securities or in connection with an actual or
proposed conversion or exchange of fixed-income securities, but may also
purchase equity securities not associated with fixed-income securities when, in
the opinion of SBAM, such purchase is appropriate.
 
In order to maintain liquidity, the Emerging Markets Debt Fund may hold and/or
invest up to 20% of its total assets in cash and/or U.S. dollar denominated
debt securities including: (1) short-term (less than 12 months to maturity) and
medium-term (not greater than five years to maturity) obligations issued or
guaranteed by (a) the U.S. government or the government of a developed country,
their agencies or instrumentalities or (b) international organizations
designated or supported by multiple foreign governmental entities to promote
economic reconstruction or development ('supranational entities'); (2) finance
company obligations, corporate commercial paper and other short-term commercial
obligations, in each case rated or issued by companies with similar securities
outstanding that are rated 'Prime-1' or 'A' or better by Moody's or 'A-1' or
'A' or better by S&P or, if unrated, of comparable quality as determined by
SBAM; (3) obligations (including certificates of deposit, time deposits, demand
deposits and bankers' acceptances) of banks; and (4) repurchase agreements (as
discussed below under 'Additional Investment Activities and Risk
Factors -- Repurchase Agreements') with respect to securities in which the Fund
may invest. The Fund may invest its assets without limit in such instruments
for temporary defensive purposes in the event of adverse market conditions. To
the extent the Fund adopts such a temporary defensive position, it will not be
invested so as to directly achieve its investment objective.
 
The Emerging Markets Debt Fund may enter into repurchase agreements and reverse
repurchase agreements, may purchase securities on a firm commitment basis,
including when-issued securities and
 
                                                                         Page 15
 
<PAGE>
<PAGE>
may lend portfolio securities. The Fund may also invest in investment funds.
For a description of these investment practices and the risks associated
therewith, see 'Additional Investment Activities and Risk Factors.'
 
The Emerging Markets Debt Fund may purchase securities for which there is a
limited trading market or which are subject to restrictions on resale to the
public. The Fund will not invest more than 15% of the value of its total assets
in illiquid securities, such as 'restricted securities' which are illiquid, and
securities that are not readily marketable. See 'Additional Investment
Activities and Risk Factors -- Restricted Securities and Securities with
Limited Trading Markets.' The Fund's holdings of Rule 144A securities
determined by SBAM to be liquid will not be subject to the 15% limitation on
investments in illiquid securities.
 
The Emerging Markets Debt Fund is currently authorized to use all of the
various investment strategies referred to under 'Additional Investment
Activities and Risk Factors -- Derivatives.' With the exception of currency
transactions, however, it is not presently anticipated that any of these
strategies will be used to a significant degree by the Fund. The Fund's ability
to pursue certain of these strategies, including the ability to hedge against
currency exchange rate risks with respect to its holdings of non-U.S. dollar
denominated securities, may be limited by applicable regulations of the SEC,
the CFTC and the federal income tax requirements applicable to regulated
investment companies. Appendix B to this Prospectus and the Statement of
Additional Information contain descriptions of these strategies and of certain
risks associated therewith.
 
The foregoing investment policies, other than the Emerging Markets Debt Fund's
investment objective, are not fundamental policies and may be changed by vote
of the Board of Directors without the approval of shareholders.
 
ASIA GROWTH FUND
 
The Asia Growth Fund's objective is to achieve long-term capital appreciation.
The Fund seeks to achieve its objective by investing at least 65% of its total
assets in equity and equity-related securities of Asian Companies. Asian
Companies include companies that: (i) are organized under the laws of
Bangladesh, China, Hong Kong, India, Indonesia, Korea, Malaysia, Pakistan, the
Philippines, Singapore, Sri Lanka, Taiwan, Thailand or any other country in the
Asian region (other than Japan, Australia and New Zealand) that currently or in
the future permits foreign investment (collectively, 'Asian Countries'); or (ii)
regardless of where organized and as determined by SBAM AP: (a) derive at least
50% of their revenues from goods produced or sold, investments made, or
services performed in or with one or more of the Asian Countries; (b) maintain
at least 50% of their assets in one or more of the Asian Countries; or (c) have
securities which are traded principally on a stock exchange in an Asian
Country. The Fund is non-diversified within the meaning of the 1940 Act. See
'Additional Investment Activities and Risk Factors -- Non-Diversification.'
 
Equity securities in which the Asia Growth Fund may invest include common and
preferred stocks (including convertible preferred stock), bonds, notes and
debentures convertible into common and preferred stock, stock purchase warrants
and rights, equity-linked debt securities, equity interests in trusts,
partnerships, joint ventures or similar enterprises, and American, Global or
other types of Depositary Receipts. Equity-linked debt securities are debt
instruments whose prices are indexed to the prices of equity securities or
securities indices. In other words, the value at maturity or coupon rate of
these equity-linked debt instruments is determined by reference to a specific
instrument or statistic. The performance of equity-linked debt instruments
depends to a great extent on the performance of the security or index to which
they are indexed, and may also be influenced by interest rate changes in the
United States and abroad. At the same time, these instruments are subject to
the credit risks associated with the issuer of the security, and their values
may decline substantially if the issuer's creditworthiness deteriorates.
Indexed instruments may be more volatile than the underlying instruments.
 
Page 16
 
<PAGE>
<PAGE>
There are no prescribed limits on geographic asset distributions among Asian
Countries and from time to time, SBAM AP expects to invest a significant
portion of the Asia Growth Fund's assets in Hong Kong, Malaysia, Singapore and
Thailand. Investments in each of these countries may from time to time exceed
25% of the Fund's total assets. In addition, more than 25% of the Fund's total
assets may be denominated or quoted in the currencies of any one or more of
such countries. In this regard, SBAM anticipates that up to 40% of the Fund's
total assets may be invested in Hong Kong. Under an agreement signed in 1984,
Britain will pass Hong Kong's sovereignty to China effective July 1, 1997. At
times, relations between Britain and China have been strained over differences
in political and legal issues related to Hong Kong's sovereignty. The
political, social and financial ramifications of China's assumption of
sovereignty over Hong Kong, and the impact on the financial markets in Hong
Kong, Asia or elsewhere, are uncertain. Although SBAM AP expects that most of
the equity securities purchased by the Fund will be traded on a stock exchange
or in an over-the-counter market, most of the Asian securities markets have
substantially less volume than U.S. or other established markets and some of
the stock exchanges in the Asian Countries are in the early stages of their
development. Concentration of the Fund's assets in one or a few of the Asian
countries and Asian currencies will subject the Fund, to a greater extent than
if the Fund's assets were less geographically concentrated, to the risks of
adverse changes in the securities and foreign exchange markets of such
countries and social, political or economic events which may occur in those
countries. For a more detailed discussion of the special risks which the Fund
is subject to by virtue of its investment in foreign securities, see
'Additional Investment Activities and Risk Factors -- Foreign Securities.' An
investment in the Asia Growth Fund should not be considered as a complete
investment program.
 
In pursuing the Asia Growth Fund's investment objective, SBAM AP will combine a
traditional fundamental approach towards evaluating industry sectors and
individual securities of Asian Companies with a risk management driven approach
seeking to keep the Fund's volatility of return in line with or lower than that
currently experienced in the Asian markets.
 
SBAM AP expects to focus on certain industry groups across Asian Countries in
an attempt to identify and capture the relative value of such groups on a
pan-regional basis. SBAM AP will research individual companies in an effort to
identify the investment opportunities within these industry groups which will
provide long-term capital appreciation. In addition, SBAM AP intends to meet the
management of individual companies on a periodic basis. As part of the Asia
Growth Fund's risk management objective, SBAM AP will also concentrate on
macroeconomic issues and other variables influencing the direction of monetary
policies followed by Asian Central Banks.
 
The investment process to be implemented by SBAM AP will consist of the three
following principal (and potentially overlapping) types of approaches.
 
PAN-REGIONAL INDUSTRY GROUP DECISIONS. SBAM AP will seek to identify the
pan-regional industrial sectors which are likely to exhibit attractive returns
over the long-term. In selecting such industrial sectors, SBAM AP will focus on
industry cycles and competitiveness as well as the industrial characteristics
of the Asian economies. In addition, SBAM AP will review government regulations,
industrial policies, access to technology and industrial research reports
provided by industrial companies or associations and securities dealers in
Asian Countries. SBAM AP will focus on those industries which represent
meaningful weightings in the total market capitalization of the Asian Countries
including, but not limited to, telecommunications, consumer durables and
nondurables, food and beverage, electronics, hotels, power engineering and
generation, basic industries, public utilities, property and financial sectors.
SBAM AP believes that an investment process that places emphasis on industry
groups is appropriate given the current state of economic and financial
integration being achieved by the Asian Countries and the relatively
significant concentration of market capitalization in Asian Countries toward
certain industrial sectors.
 
                                                                         Page 17
 
<PAGE>
<PAGE>
FUNDAMENTAL ANALYSIS: INDIVIDUAL SECURITY DECISIONS. In order to identify the
most attractive investment opportunities within industry groups, SBAM AP will
employ extensive research to select investments in Asian Countries that offer
long-term growth potential for investors. While the Asia Growth Fund generally
seeks to invest in securities of larger companies within the particular Asian
market, it may also invest in the securities of medium and smaller companies
that, in the opinion of SBAM AP, have potential for growth. In particular, SBAM
AP will employ the following three-step process to evaluate particular
investment opportunities for the Fund.
 
Screening Process. SBAM AP will implement a systematic screening process in an
effort to identify individual securities it believes likely to exhibit
attractive returns over the long term. SBAM AP will screen companies according
to factors such as the perceived quality of their management and business,
overall sustainable competitiveness, historical earnings, dividend records over
at least a full business cycle, liquidity, trading volumes and historical and
expected volatility.
 
Financial Analysis Process. The financial analysis of selected companies will
focus on evaluating the fundamental value of the enterprise. SBAM AP will use a
value-driven process which will emphasize quantitative analysis based on return
on equity ('ROE') and its components, such as operating margins, financial
leverage, asset turnover and interest and tax burdens. In addition, the
company's cash flow generating capabilities and return on assets will be
considered. SBAM AP believes that ROE and cash flow dynamics are appropriate
variables when analyzing companies which operate in high growth markets, such
as Asia, as the ability of such companies to capture this growth by using the
right allocation of resources and asset financing is of utmost importance.
 
Valuation Process and Volatility Analysis. The valuation process will focus on
Price Earnings Ratio ('PER') calculations and comparisons with historical
relative PER bands and local market conditions. SBAM AP will use measures such
as PER/growth, and will evaluate whether the security enjoys accelerating
earnings growth momentum due to management changes or the introduction of new
products and/or services. In addition, where appropriate, SBAM AP will conduct
specific dividend discount model and discount cash flow analyses for specific
securities with predictable cash flows or dividend streams. Through the use of
this analysis, SBAM AP will attempt to identify companies with strong potential
for appreciation relative to their downside exposure. Lastly, SBAM AP will
conduct a volatility analysis on selected securities in an effort to forecast
the expected risk of such securities and compare the results of such risk
analysis with these securities' expected returns. Investments may be made in
companies that do not have extensive operating experience provided that SBAM AP
believes such companies nevertheless have significant growth potential.
 
RISK MANAGEMENT AND MACROECONOMIC/TOP-DOWN ANALYSIS. SBAM AP will also consider
macroeconomic variables, such as liquidity and capital flows, foreign equity
and industrial investments and the direction of monetary policies in the Asian
Countries in an effort to capture individual market movements as well as attain
an optimal asset allocation mix and to identify the appropriate risk management
parameters for the Asia Growth Fund. The macroeconomic data SBAM AP will
monitor and analyze includes, but is not limited to, gross domestic product
growth, balance of payments and current account balances, budget deficits or
surpluses, inflation and interest rates. SBAM AP intends to meet with central
bankers, regional economists and strategists on a regular basis to assess the
present and future direction of monetary policies and their likely impact on
the markets of the Asian Countries.
 
As part of the Fund's risk management approach and in an attempt to better
assess and control the Fund's overall risk level on an ongoing basis, SBAM AP
will employ a quantitative analysis at each stage of the investment process
which will consist of analyzing and forecasting volatilities of the Asian
markets and securities. SBAM AP will use a number of volatility-control
strategies, including derivative instruments (as discussed below), in an effort
to attain an optimal asset allocation mix, for hedging purposes in an attempt
to control the Fund's overall risk level and to obtain exposure to markets in
the Asian Countries which have restrictions on foreign investment.
 
Page 18
 
<PAGE>
<PAGE>
The Asia Growth Fund from time to time may invest up to 10% of its total assets
in non-convertible debt securities, which may include securities rated below
investment grade by S&P and Moody's with no minimum rating required or
comparable unrated securities (commonly referred to as 'junk bonds'). There is
no limit on the amount of the Fund's assets that can be invested in convertible
securities rated below investment grade. For additional information on these
high yield debt securities, which may involve a high degree of risk, see
'Additional Investment Activities and Risk Factors -- High Yield Securities.'
 
In order to maintain liquidity, the Asia Growth Fund may hold and/or invest up
to 35% of its total assets in debt securities denominated in U.S. dollars or in
another freely convertible currency including: (1) short-term (less than 12
months to maturity) and medium-term (not greater than five years to maturity)
obligations issued or guaranteed by (a) the U.S. government or the government of
an Asian Country, their agencies or instrumentalities or (b) international
organizations designated or supported by multiple foreign governmental entities
to promote economic reconstruction or development ('supranational entities');
(2) finance company obligations, corporate commercial paper and other
short-term commercial obligations, in each case rated, or issued by companies
with similar securities outstanding that are rated, 'Prime-1' or 'A' or better
by Moody's or 'A-1' or 'A' or better by S&P or, if unrated, of comparable
quality as determined by SBAM AP; (3) obligations (including certificates of
deposit, time deposits, demand deposits and bankers' acceptances) of banks; and
(4) repurchase agreements (as described below under 'Additional Investment
Activities and Risk Factors -- Repurchase Agreements') with respect to
securities in which the Fund may invest. The Fund may invest its assets without
limit in such instruments for temporary defensive purposes in the event of
adverse market conditions. To the extent the Fund adopts such a temporary
defensive position, it will not be invested so as to directly achieve its
investment objective.
 
The Asia Growth Fund may enter into repurchase agreements and reverse
repurchase agreements, may purchase securities on a firm commitment basis,
including when-issued securities and may lend portfolio securities. The Fund
may also invest in investment funds. For a description of these investment
practices and the risks associated therewith, see 'Additional Investment
Activities and Risk Factors.'
 
The Asia Growth Fund may purchase securities for which there is a limited
trading market or which are subject to restrictions on resale to the public.
The Fund will not invest more than 15% of the value of its total assets in
illiquid securities, such as 'restricted securities' which are illiquid, and
securities that are not readily marketable. For further discussion of illiquid
securities and their associated risks, see 'Additional Investment Activities
and Risk Factors -- Restricted Securities and Securities With Limited Trading
Markets.' As more fully described in the Statement of Additional Information,
the Fund may purchase Rule 144A securities. The Fund's holdings of Rule 144A
securities determined by SBAM AP to be liquid will not be subject to the 15%
limitation on investments in illiquid securities.
 
The Asia Growth Fund is currently authorized and intends to use the various
investment strategies referred to under 'Additional Investment Activities and
Risk Factors -- Derivatives.' The Fund's ability to pursue certain of these
strategies may be limited by applicable regulations of the SEC, the CFTC and
the federal income tax requirements applicable to regulated investment
companies. Appendix B to this Prospectus and the Statement of Additional
Information contain descriptions of these strategies and of certain risks
associated therewith.
 
The foregoing investment policies other than the Asia Growth Fund's investment
objective, are not fundamental policies and may be changed by vote of the Board
of Directors without the approval of shareholders.
 
                                                                         Page 19
<PAGE>
<PAGE>
                           Additional
                Investment Activities
                     and Risk Factors
 
- -------------------------------------
 
REPURCHASE AGREEMENTS. Each Fund may enter into repurchase agreements for cash
management purposes. A repurchase agreement is a transaction in which the
seller of a security commits itself at the time of sale to repurchase that
security from the buyer at a mutually agreed upon time and price. Each Fund
will enter into repurchase agreements only with dealers, banks or recognized
financial institutions which, in the investment manager's determination based
on guidelines established by each Company's Board of Directors, are deemed
creditworthy. The investment manager monitors the value of the securities
underlying the repurchase agreement at the time the transaction is entered into
and at all times during the term of the repurchase agreement to ensure that the
value of the securities always equals or exceeds the repurchase price. In the
event of default by the seller under the repurchase agreement, a Fund could
experience losses and experience time delays in connection with the disposition
of the underlying security. To the extent that, in the meantime, the value of
the securities that a Fund has purchased has decreased, the Fund could
experience a loss. Repurchase agreements with maturities of more than seven
days will be treated as illiquid securities.
 
REVERSE REPURCHASE AGREEMENTS. Certain of the Funds may enter into 'reverse'
repurchase agreements to avoid selling securities during unfavorable market
conditions to meet redemptions. Pursuant to a reverse repurchase agreement, a
Fund will sell portfolio securities and agree to repurchase them from the buyer
at a particular date and price. Whenever a Fund enters into a reverse
repurchase agreement, it will establish a segregated account in which it will
maintain liquid assets in an amount at least equal to the repurchase price
marked to market daily (including accrued interest), and will subsequently
monitor the account to ensure that such equivalent value is maintained. A Fund
pays interest on amounts obtained pursuant to reverse repurchase agreements.
Reverse repurchase agreements are considered to be borrowings by a Fund.
 
LOANS OF PORTFOLIO SECURITIES. Certain of the Funds may lend portfolio
securities to generate income. In the event of the bankruptcy of the other
party to a securities loan, a Fund could experience delays in recovering the
securities it lent. To the extent that, in the meantime, the value of the
securities a Fund lent has increased, the Fund could experience a loss. The
value of securities loaned will be marked to market daily. Any securities that
a Fund may receive as collateral will not become a part of its portfolio at the
time of the loan and, in the event of a default by the borrower, the Fund will,
if permitted by law, dispose of such collateral except that the Fund may retain
any such part thereof that is a security in which the Fund is permitted to
invest. The Fund may invest the cash collateral and earn additional income or
receive an agreed-upon fee from a borrower that has delivered cash equivalent
collateral. Cash collateral received by a Fund may be invested in securities in
which the Fund is permitted to invest. Portfolio securities purchased with cash
collateral are subject to possible depreciation. Voting rights may pass with
the lending of portfolio securities. Loans of securities by a Fund will be
subject to termination at the Fund's or the borrower's option. A Fund may pay
administrative and custodial fees in connection with a securities loan and may
pay a negotiated portion of the interest or fee earned with respect to the
collateral to the borrower or a placing broker.
 
FIRM COMMITMENTS AND WHEN-ISSUED SECURITIES. A Fund may purchase securities on
a firm commitment basis, including when-issued securities. Securities purchased
on a firm commitment basis are purchased for delivery beyond the normal
settlement date at a stated price and yield. No income accrues to the purchaser
of a security on a firm commitment basis prior to delivery. Such securities are
recorded as an asset and are subject to changes in value based upon changes in
the general level of interest rates. Purchasing a security on a firm commitment
basis can involve a risk that the market
 
Page 20
 
<PAGE>
<PAGE>
price at the time of delivery may be lower than the agreed upon purchase price,
in which case there could be an unrealized loss at the time of delivery. A Fund
will only make commitments to purchase securities on a firm commitment basis
with the intention of actually acquiring the securities, but may sell them
before the settlement date if it is deemed advisable. A Fund will establish a
segregated account in which it will maintain liquid assets in an amount at
least equal in value to the Fund's commitments to purchase securities on a firm
commitment basis. If the value of these assets declines, the Fund 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.
 
ZERO COUPON SECURITIES, PAY-IN-KIND BONDS AND DEFERRED PAYMENT SECURITIES. The
High Yield Bond Fund and the Emerging Markets Debt Fund may invest in zero
coupon securities, pay-in-kind bonds and deferred payment securities.
 
Zero coupon securities are debt securities that pay no cash income but are sold
at substantial discounts from their value at maturity. When a zero coupon
security is held to maturity, its entire return, which consists of the
amortization of discount, comes from the difference between its purchase price
and its maturity value. This difference is known at the time of purchase, so
that investors holding zero coupon securities until maturity know at the time
of their investment what the expected return on their investment will be.
Certain zero coupon securities also are sold at substantial discounts from
their maturity value and provide for the commencement of regular interest
payments at a deferred date. Zero coupon securities may have conversion
features. A Fund also may purchase pay-in-kind bonds. Pay-in-kind bonds pay all
or a portion of their interest in the form of debt or equity 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.
 
Zero coupon securities, pay-in-kind bonds and deferred payment securities tend
to be subject to greater price fluctuations in response to changes in interest
rates than are ordinary interest-paying debt securities with similar
maturities. The value of zero coupon securities appreciates more during periods
of declining interest rates and depreciates more during periods of rising
interest rates than ordinary interest-paying debt securities with similar
maturities. Zero coupon securities, pay-in-kind bonds and deferred payment
securities may be issued by a wide variety of corporate and governmental
issuers. Although these instruments are generally not traded on a national
securities exchange, they are widely traded by brokers and dealers and, to such
extent, will not be considered illiquid for the purposes of a Fund's 15%
limitation on investments in illiquid securities discussed below.
 
Current federal income tax law requires the holder of a zero coupon security,
certain pay-in-kind bonds, deferred payment securities and certain other
securities acquired at a discount (such as Brady Bonds) to accrue income with
respect to these securities prior to the receipt of cash payments. Accordingly,
to avoid liability for federal income and excise taxes, a Fund may be required
to distribute income accrued with respect to these securities and may have to
dispose of portfolio securities under disadvantageous circumstances in order to
generate cash to satisfy these distribution requirements.
 
LOAN PARTICIPATIONS AND ASSIGNMENTS. The High Yield Bond Fund and the Emerging
Markets Debt Fund may invest in Loan Participations and Assignments. The Funds
consider these investments to be investments in debt securities for purposes of
this Prospectus. Loan Participations typically will result in a Fund having a
contractual relationship only with the Lender, not with the borrower. A Fund
will have the right to receive payments of principal, interest and any fees to
which it is entitled only from the Lender selling the Participation and only
upon receipt by the Lender of the payments from the borrower. In connection
with purchasing Loan Participations, a Fund generally will have no right to
enforce compliance by the borrower with the terms of the loan agreement
relating to the Loan, nor any rights of set-off against the borrower, and the
Fund may not benefit directly from any collateral supporting the Loan in which
it has purchased the Participation. As a result, a Fund will
 
                                                                         Page 21
 
<PAGE>
<PAGE>
assume the credit risk of both the borrower and the Lender that is selling the
Participation. In the event of the insolvency of the Lender selling a
Participation, a Fund may be treated as a general creditor of the Lender and
may not benefit from any set-off between the Lender and the borrower. A Fund
will acquire Loan Participations only if the Lender interpositioned between the
Fund and the borrower is determined by SBAM to be creditworthy. When a Fund
purchases Assignments from Lenders, the Fund will acquire direct rights against
the borrower on the Loan, except that under certain circumstances such rights
may be more limited than those held by the assigning Lender.
 
A Fund may have difficulty disposing of Assignments and Loan Participations.
Because the market for such instruments is not highly liquid, the Funds
anticipate that such instruments could be sold only to a limited number of
institutional investors. The lack of a highly liquid secondary market may have
an adverse impact on the value of such instruments and will have an adverse
impact on a Fund's ability to dispose of particular Assignments or Loan
Participations in response to a specific economic event, such as deterioration
in the creditworthiness of the borrower.
 
The Board of Directors of Institutional Series Funds has adopted policies and
procedures for the High Yield Bond Fund and the Emerging Markets Debt Fund to
determine whether Assignments and Loan Participations purchased by such Funds
are liquid or illiquid for purposes of a Fund's limitation on investment in
illiquid securities. Pursuant to those policies and procedures, the Board of
Directors has delegated to the investment manager the determination as to
whether a particular Loan Participation or Assignment is liquid or illiquid,
requiring that consideration be given to, among other things, the frequency of
quotes, the number of dealers willing to sell and the number of potential
purchasers, the nature of the Loan Participation or Assignment and the time
needed to dispose of it, and the contractual provisions of the relevant
documentation. The Board of Directors periodically reviews purchases and sales
of Assignments and Loan Participations. In valuing a Loan Participation or
Assignment held by a Fund for which a secondary trading market exists, the Fund
will rely upon prices or quotations provided by banks, dealers or pricing
services. To the extent a secondary trading market does not exist, a Fund's
Loan Participations and Assignments will be valued in accordance with
procedures adopted by the Board of Directors, taking into consideration, among
other factors: (i) the creditworthiness of the borrower under the Loan and the
Lender; (ii) the current interest rate, period until next rate reset and
maturity of the Loan; (iii) recent prices in the market for similar Loans; and
(iv) recent prices in the market for instruments of similar quality, rate,
period until next interest rate reset and maturity. See 'Net Asset Value.'
 
To the extent that liquid Assignments and Loan Participations that a Fund holds
become illiquid, due to the lack of sufficient buyers or market or other
conditions, the percentage of a Fund's assets invested in illiquid assets would
increase. SBAM, under the supervision of the Board of Directors, monitors Fund
investments in Assignments and Loan Participations and will, in such a case,
consider appropriate measures to enable a Fund to maintain sufficient liquidity
for operating purposes and to meet redemption requests.
 
RESTRICTED SECURITIES AND SECURITIES WITH LIMITED TRADING MARKETS. Each Fund may
purchase securities for which there is a limited trading market or which are
subject to restrictions on resale to the public. Investments in securities
which are 'restricted' may involve added expenses to a Fund should the Fund be
required to bear registration costs with respect to such securities and could
involve delays in disposing of such securities which might have an adverse
effect upon the price and timing of sales of such securities and the liquidity
of the Fund with respect to redemptions. Restricted securities and securities
for which there is a limited trading market may be significantly more difficult
to value due to the unavailability of reliable market quotations for such
securities, and investment in such securities may have an adverse impact on net
asset value. Rule 144A is a recent development and there is no assurance that a
liquid market in Rule 144A securities will develop or be maintained. To the
extent that the number of qualified institutional buyers is reduced, a
previously liquid Rule 144A security may be determined to be illiquid, thus
increasing the percentage of illiquid assets in a
 
Page 22
 
<PAGE>
<PAGE>
Fund's portfolio. SBAM, under the supervision of the Board of Directors, is
responsible for monitoring the liquidity of Rule 144A securities. The Board of
Directors periodically reviews the Funds' purchases and sales of such Rule 144A
securities.
 
WARRANTS. Certain of the Funds may invest in warrants, which are securities
permitting, but not obligating, their holder to subscribe for other securities.
Warrants do not carry the right to dividends or voting rights with respect to
their underlying securities, and they do not represent any rights in assets of
the issuer. An investment in warrants may be considered speculative. In
addition, the value of a warrant does not necessarily change with the value of
the underlying securities and a warrant ceases to have value if it is not
exercised prior to its expiration date.
 
FOREIGN SECURITIES. Investors should recognize that investing in the securities
of foreign issuers generally, and particularly in emerging market issuers,
involves special considerations which are not typically associated with
investing in securities of U.S. issuers. Investments in securities of foreign
issuers may involve risks arising from differences between U.S. and foreign
securities markets, including less volume, much greater price volatility in and
relative illiquidity of foreign securities markets, different trading and
settlement practices and less governmental supervision and regulation, from
changes in currency exchange rates, from high and volatile rates of inflation,
from economic, social and political conditions and, as with domestic
multinational corporations, from fluctuating interest rates.
 
Investment in certain emerging market securities is restricted or controlled to
varying degrees which may at times limit or preclude investment in certain
emerging market securities and increase the costs and expenses of a Fund.
Certain emerging market countries require governmental approval prior to
investments by foreign persons, limit the amount of investment by foreign
persons in a particular issuer, limit the investment by foreign persons only to
a specific class of securities of an issuer that may have less advantageous
rights than other classes, restrict investment opportunities in issuers in
industries deemed important to national interests and/or impose additional
taxes on foreign investors.
 
Certain emerging market countries may require governmental approval for the
repatriation of investment income, capital or the proceeds of sales of
securities by foreign investors which could adversely affect a Fund. In
addition, if a deterioration occurs in an emerging market country's balance of
payments, it could impose temporary restrictions on foreign capital
remittances. Investing in local markets in emerging market countries may
require a Fund to adopt special procedures, seek local government approvals or
take other actions, each of which may involve additional costs to the Fund.
 
Other investment risks include the possible imposition of foreign taxes on
certain amounts of a Fund's income which may reduce the net return on foreign
investments as compared to income received from a U.S. issuer, the possible
seizure or nationalization of foreign assets and the possible establishment of
exchange controls, expropriation, confiscatory taxation, other foreign
governmental laws or restrictions which might affect adversely payments due on
securities held by a Fund, the lack of extensive operating experience of
eligible foreign subcustodians and legal limitations on the ability of a Fund to
recover assets held in custody by a foreign subcustodian in the event of the
subcustodian's bankruptcy. Moreover, brokerage commissions and other
transactions costs on foreign securities exchanges are generally higher than in
the United States.
 
In addition, there may be less publicly-available information about a foreign
issuer than about a U.S. issuer, and foreign issuers may not be subject to the
same accounting, auditing and financial record-keeping standards and
requirements as U.S. issuers. In particular, the assets and profits appearing on
the financial statements of an emerging market country issuer may not reflect
its financial position or results of operations in the way they would be
reflected had the financial statements been prepared in accordance with U.S.
generally accepted accounting principles. In addition, for an issuer that keeps
accounting records in local currency, inflation accounting rules may require,
for both tax and accounting purposes, that certain assets and liabilities be
restated on the issuer's balance sheet in
 
                                                                         Page 23
 
<PAGE>
<PAGE>
order to express items in terms of currency of constant purchasing power.
Inflation accounting may indirectly generate losses or profits. Consequently,
financial data may be materially affected by restatements for inflation and may
not accurately reflect the real condition of those issuers and securities
markets. Finally, in the event of a default of any such foreign obligations, it
may be more difficult for a Fund to obtain or enforce a judgment against the
issuers of such obligations. See ' -- High Yield Securities.'
 
For a further discussion of certain risks involved in investing foreign
securities, particularly of emerging market issuers, see 'Additional
Information on Portfolio Instruments and Investment Policies -- Foreign
Securities' in the Statement of Additional Information.
 
FIXED-INCOME SECURITIES. Except to the extent that values are affected
independently by other factors such as developments relating to a specific
issuer, when interest rates decline, the value of a fixed-income portfolio can
generally be expected to rise. Conversely, when interest rates rise, the value
of a fixed-income portfolio can generally be expected to decline. Prices of
longer term securities generally increase or decrease more sharply than those
of shorter term securities in response to interest rate changes, particularly
if such securities were purchased at a discount. Because the High Yield Bond
Fund and the Emerging Markets Debt Fund will invest primarily in fixed-income
securities, the net asset value of these Funds' shares can be expected to
change as general levels of interest rates fluctuate. It should be noted that
the market values of securities rated below investment grade and comparable
unrated securities tend to react less to fluctuations in interest rate levels
than do those of higher-rated securities.
 
In addition, many fixed-income securities contain call or buy-back features
that permit their issuers to call or repurchase the securities from their
holders. Such securities may present risks based on payment expectations.
Although a Fund would typically receive a premium if an issuer were to redeem a
security, if an issuer exercises such a 'call option' and redeems the security
during a time of declining interest rates, a Fund may realize a capital loss on
its investment if the security was purchased at a premium and a Fund may have
to replace the called security with a lower yielding security, resulting in a
decreased rate of return to the Fund.
 
HIGH YIELD SECURITIES. The High Yield Bond Fund and the Emerging Markets Debt
Fund may invest without limitation in high yield securities. The Asia Growth
Fund may invest without limitation in convertible non-U.S. high yield
securities and up to 10% of its total assets in non-convertible non-U.S. high
yield securities. Under rating agency guidelines, medium- and lower-rated
securities and comparable unrated securities will likely have some quality and
protective characteristics that are outweighed by large uncertainties or major
risk exposures to adverse conditions. Medium and lower rated securities are
considered to have extremely poor prospects of ever attaining any real
investment standing, to have a current identifiable vulnerability to default or
are in default, to be unlikely to have the capacity to pay interest and repay
principal when due in the event of adverse business, financial or economic
conditions, and/or to be in default or not current in the payment of interest
or principal. Such securities are considered speculative with respect to the
issuer's capacity to pay interest and repay principal in accordance with the
terms of the obligations. Accordingly, it is possible that these types of
factors could, in certain instances, reduce the value of securities held by a
Fund with a commensurate effect on the value of the Fund's shares.
 
Changes by recognized rating services in their ratings of any fixed-income
security and in the ability of an issuer to make payments of interest and
principal may also affect the value of these investments. A description of the
ratings used by Moody's and S&P is set forth in Appendix A to this Prospectus.
The ratings of Moody's and S&P generally represent the opinions of those
organizations as to the quality of the securities that they rate. Such ratings,
however, are relative and subjective, are not absolute standards of quality,
are subject to change and do not evaluate the market risk or liquidity of the
securities. Ratings of a non-U.S. debt instrument, to the extent that those
ratings are undertaken, are related to evaluations of the country in which the
issuer of the instrument is located. Ratings
 
Page 24
 
<PAGE>
<PAGE>
generally take into account the currency in which a non-U.S. debt instrument is
denominated. Instruments issued by a foreign government in other than the local
currency, for example, typically have a lower rating than local currency
instruments due to the existence of an additional risk that the government will
be unable to obtain the required foreign currency to service its foreign
currency-denominated debt. In general, the ratings of debt securities or
obligations issued by a non-U.S. public or private entity will not be higher
than the rating of the currency or the foreign currency debt of the central
government of the country in which the issuer is located, regardless of the
intrinsic creditworthiness of the issuer.
 
The secondary markets for high yield securities are not as liquid as the
secondary markets for higher rated securities. The secondary markets for high
yield securities are concentrated in relatively few market makers and
participants in the market are mostly institutional investors, including
insurance companies, banks, other financial institutions and mutual funds.
These factors may have an adverse effect on the ability of a Fund holding such
securities to dispose of particular portfolio investments at fair value, may
adversely affect the Fund's net asset value per share and may limit the ability
of such a Fund to obtain accurate market quotations for purposes of valuing
securities and calculating net asset value. If a Fund is not able to obtain
precise or accurate market quotations for a particular security, it will become
more difficult to value such Fund's portfolio securities, and a greater degree
of judgment may be necessary in making such valuations. The secondary markets
for high yield securities may contract due to adverse economic conditions or
for other reasons relating to or independent of any specific adverse changes in
the condition of a particular issuer and, as a result, certain liquid
securities in a Fund's portfolio may become illiquid and the proportion of the
Fund's assets invested in illiquid securities may significantly increase.
 
Prices for high yield securities may be affected by legislative and regulatory
developments. These laws could adversely affect a Fund's net asset value and
investment practices, the secondary market for high yield securities, the
financial condition of issuers of these securities and the value of outstanding
high yield securities. For example, federal legislation requiring the
divestiture by federally insured savings and loan associations of their
investments in high yield bonds and limiting the deductibility of interest by
certain corporate issuers of high yield bonds adversely affected the market in
recent years.
 
High Yield Corporate Securities. While the market values of securities rated
below investment grade and comparable unrated securities tend to react less to
fluctuations in interest rate levels than do those of higher-rated securities,
the market values of certain of these securities also tend to be more sensitive
to individual corporate developments and changes in economic conditions than
higher-rated securities. In addition, such securities present a higher degree
of credit risk. Issuers of these securities are often highly leveraged and may
not have more traditional methods of financing available to them, so that their
ability to service their debt obligations during an economic downturn or during
sustained periods of rising interest rates may be impaired. The risk of loss
due to default by such issuers is significantly greater than with investment
grade securities because such securities generally are unsecured and frequently
are subordinated to the prior payment of senior indebtedness. A Fund also may
incur additional expenses to the extent that it is required to seek recovery
upon a default in the payment of principal or interest on its portfolio
holdings.
 
The development of a market for high yield corporate securities generally, and
non-U.S. securities in particular, is relatively new and may undergo
significant changes in the future.
 
High yield corporate securities in which the applicable Funds may invest will
generally be unsecured. Most of the debt securities will bear interest at fixed
rates but a Fund may also invest in securities with variable rates of interest
or which involve equity features, such as contingent interest or participations
based on revenues, sales or profits (i.e., interest or other payments, often in
addition to a fixed rate of return, that are based on the borrower's attainment
of specified levels of revenues, sales or profits and thus enable the holder of
the security to share in the potential success of the venture).
 
                                                                         Page 25
 
<PAGE>
<PAGE>
High Yield Foreign Sovereign Debt Securities. Investing in fixed and floating
rate high yield foreign sovereign debt securities will expose a Fund to the
direct or indirect consequences of political, social or economic changes in the
countries that issue the securities. See ' -- Foreign Securities' above. The
ability and willingness of sovereign obligors in developing and emerging market
countries or the governmental authorities that control repayment of their
external debt to pay principal and interest on such debt when due may depend on
general economic and political conditions within the relevant country.
Countries such as those in which a Fund may invest have historically
experienced, and may continue to experience, high rates of inflation, high
interest rates, exchange rate trade difficulties and extreme poverty and
unemployment. Many of these countries are also characterized by political
uncertainty or instability. Additional factors which may influence the ability
or willingness to service debt include, but are not limited to, a country's
cash flow situation, the availability of sufficient foreign exchange on the
date a payment is due, the relative size of its debt service burden to the
economy as a whole, and the issuing government's policy towards the
International Monetary Fund, the World Bank and other international agencies.
 
The ability of a foreign sovereign obligor to make timely payments on its
external debt obligations will also be strongly influenced by the obligor's
balance of payments, including export performance, its access to international
credits and investments, fluctuations in interest rates and the extent of its
foreign reserves. A country whose exports are concentrated in a few commodities
or whose economy depends on certain strategic imports could be vulnerable to
fluctuations in international prices of these commodities or imports. To the
extent that a country receives payment for its exports in currencies other than
dollars, its ability to make debt payments denominated in dollars could be
adversely affected. If a foreign sovereign obligor cannot generate sufficient
earnings from foreign trade to service its external debt, it may need to depend
on continuing loans and aid from foreign governments, commercial banks and
multilateral organizations, and inflows of foreign investment. The commitment
on the part of these foreign governments, multilateral organizations and others
to make such disbursements may be conditioned on the government's
implementation of economic reforms and/or economic performance and the timely
service of its obligations. Failure to implement such reforms, achieve such
levels of economic performance or repay principal or interest when due may
result in the cancellation of such third parties' commitments to lend funds,
which may further impair the obligor's ability or willingness to timely service
its debts. The cost of servicing external debt will also generally be adversely
affected by rising international interest rates, because many external debt
obligations bear interest at rates which are adjusted based upon international
interest rates. The ability to service external debt will also depend on the
level of the relevant government's international currency reserves and its
access to foreign exchange. Currency devaluations may affect the ability of a
sovereign obligor to obtain sufficient foreign exchange to service its external
debt.
 
As a result of the foregoing or other factors, a governmental obligor may
default on its obligations. If such an event occurs, a Fund may have limited
legal recourse against the issuer and/or guarantor. Remedies must, in some
cases, be pursued in the courts of the defaulting party itself, and the ability
of the holder of foreign sovereign debt securities to obtain recourse may be
subject to the political climate in the relevant country. In addition, no
assurance can be given that the holders of commercial bank debt will not
contest payments to the holders of other foreign sovereign debt obligations in
the event of default under their commercial bank loan agreements.
 
Certain debt obligations, customarily referred to as 'Brady Bonds,' are created
through the exchange of existing commercial bank loans to foreign entities for
new obligations in connection with debt restructuring under a plan introduced
by former U.S. Secretary of the Treasury, Nicholas F. Brady (the 'Brady Plan').
Brady Bonds have been issued only recently, and, accordingly, do not have a long
payment history. They may be fully or partially collateralized or
uncollateralized and issued in various currencies (although most are U.S.
dollar denominated) and they are actively traded in the over-the-counter
secondary market. U.S. dollar denominated, collateralized Brady Bonds, which
may be fixed rate par bonds or floating rate discount bonds, are generally
collateralized in full as to principal due at
 
Page 26
 
<PAGE>
<PAGE>
maturity by U.S. Treasury zero coupon obligations which have the same maturity
as the Brady Bonds. Certain interest payments on these Brady Bonds may be
collateralized by cash or securities in an amount that, in the case of fixed
rate bonds, is typically equal to between 12 and 18 months of rolling interest
payments or, in the case of floating rate bonds, initially is typically equal
to between 12 and 18 months rolling interest payments based on the applicable
interest rate at that time and is adjusted at regular intervals thereafter with
the balance of interest accruals in each case being uncollateralized. Payment
of interest and (except in the case of principal collateralized Brady Bonds)
principal on Brady Bonds with no or limited collateral depends on the
willingness and ability of the foreign government to make payment. In the event
of a default on collateralized Brady Bonds for which obligations are
accelerated, the collateral for the payment of principal will not be
distributed to investors, nor will such obligations be sold and the proceeds
distributed. The collateral will be held by the collateral agent to the
scheduled maturity of the defaulted Brady Bonds, which will continue to be
outstanding, at which time the face amount of the collateral will equal the
principal payments which would have then been due on the Brady Bonds in the
normal course. Based upon current market conditions, a Fund would not intend to
purchase Brady Bonds which, at the time of investment, are in default as to
payments. However, in light of the residual risk of the Brady Bonds and, among
other factors, the history of default with respect to commercial bank loans by
public and private entities of countries issuing Brady Bonds, investments in
Brady Bonds are to be viewed as speculative. A substantial portion of the Brady
Bonds and other sovereign debt securities in which the High Yield Bond Fund and
Emerging Markets Debt Fund invest are likely to be acquired at a discount,
which involves certain considerations discussed below under 'Dividends,
Distributions and Taxes.'
 
Sovereign obligors in developing and emerging market countries are among the
world's largest debtors to commercial banks, other governments, international
financial organizations and other financial institutions. These obligors have
in the past experienced substantial difficulties in servicing their external
debt obligations, which led to defaults on certain obligations and the
restructuring of certain indebtedness. Restructuring arrangements have
included, among other things, reducing and rescheduling interest and principal
payments by negotiating new or amended credit agreements or converting
outstanding principal and unpaid interest to Brady Bonds, and obtaining new
credit to finance interest payments. Holders of certain foreign sovereign debt
securities may be requested to participate in the restructuring of such
obligations and to extend further loans to their issuers. There can be no
assurance that the Brady Bonds and other foreign sovereign debt securities in
which the Funds may invest will not be subject to similar restructuring
arrangements or to requests for new credit which may adversely affect a Fund's
holdings. Furthermore, certain participants in the secondary market for such
debt may be directly involved in negotiating the terms of these arrangements
and may therefore have access to information not available to other market
participants.
 
For a further discussion of certain risks involved in investing in foreign
securities, particularly of emerging market issuers, see 'Additional
Information on Portfolio Instruments and Investment Policies -- Foreign
Securities' in the Statement of Additional Information.
 
INVESTMENT FUNDS. Certain of the Funds may invest in unaffiliated investment
funds which invest principally in securities in which that Fund is authorized
to invest. Under the 1940 Act, the Fund may invest a maximum of 10% of its
total assets in the securities of other investment companies. In addition,
under the 1940 Act, not more than 5% of the Fund's total assets may be invested
in the securities of any one investment company and a Fund may not purchase
more than 3% of the outstanding voting stock of such investment company. The
Money Market Fund will only invest in other money market funds which are
subject to the requirements of Rule 2a-7 under the 1940 Act and which are
considered to present minimal credit risks. To the extent a Fund invests in
other investment funds, the Fund's shareholders will incur certain duplicative
fees and expenses, including investment advisory fees. A Fund's investment in
certain investment funds will result in special U.S. Federal income tax
consequences described below under 'Dividends, Distributions and Taxes.'
 
                                                                         Page 27
 
<PAGE>
<PAGE>
BORROWING. Each of the Funds may borrow in certain limited circumstances. See
'Investment Limitations.' Borrowing creates an opportunity for increased
return, but, at the same time, creates special risks. For example, borrowing
may exaggerate changes in the net asset value of a Fund's shares and in the
return on the Fund's portfolio. Although the principal of any borrowing will be
fixed, a Fund's assets may change in value during the time the borrowing is
outstanding. A Fund may be required to liquidate portfolio securities at a time
when it would be disadvantageous to do so in order to make payments with
respect to any borrowing, which could affect SBAM's or SBAM AP's strategy and
the ability of the Fund to comply with certain provisions of the Internal
Revenue Code of 1986, as amended (the 'Code') in order to provide 'pass
through' tax treatment to shareholders. Furthermore, if a Fund were to engage
in borrowing, an increase in interest rates could reduce the value of the
Fund's shares by increasing the Fund's interest expense.
 
NON-DIVERSIFICATION. The Emerging Markets Debt Fund and the Asia Growth Fund
are classified as 'non-diversified' Funds under the 1940 Act, which means that
each Fund is not limited by the 1940 Act in the proportion of its assets that
may be invested in the obligations of a single issuer. Each Fund, however,
intends to comply with the diversification requirements imposed by the Code for
qualification as a regulated investment company. To the extent a Fund invests a
greater proportion of its assets in the securities of a smaller number of
issuers, the Fund may be more susceptible to any single economic, political or
regulatory occurrence than a more diversified fund and may be subject to
greater risk of loss with respect to its portfolio securities. See 'Dividends,
Distributions and Taxes' and 'Investment Limitations.'
 
DERIVATIVES. Certain of the Funds may be authorized to use various investment
strategies described below to hedge market risks (such as broad or specific
market movements, interest rates and currency exchange rates), to manage the
effective maturity or duration of debt instruments held by a Fund, or to seek
to increase a Fund's income or gain. These instruments are often referred to as
'Derivatives,' which may be defined as financial instruments whose performance
is derived, at least in part, upon the performance of another asset (such as a
security, currency or index securities). The description in this Prospectus of
each Fund indicates which, if any, of these types of transactions may be used by
that Fund. Although these strategies are regularly used by some investment
companies and other institutional investors, it is not presently anticipated
that any of these strategies will be used to a significant degree by any Fund
unless otherwise specifically indicated in the description of the particular
Fund contained in this Prospectus. Over time, however, techniques and
instruments may change as new instruments and strategies are developed or
regulatory changes occur.
 
Subject to the constraints described above, a Fund may (if and to the extent so
authorized) purchase and sell interest rate, currency or stock or bond index
futures contracts and enter into currency forward contracts and currency swaps;
purchase and sell (or write) exchange listed and over-the-counter put and call
options on securities, Loan Participations and Assignments, currencies, futures
contracts, indices and other financial instruments, and a Fund may enter into
interest rate transactions, equity swaps and related transactions and other
similar transactions which may be developed to the extent SBAM or SBAM AP
determines that they are consistent with the applicable Fund's investment
objective and policies and applicable regulatory requirements. A Fund's
interest rate transactions may take the form of swaps, caps, floors and
collars, and a Fund's currency transactions may take the form of currency
forward contracts, currency futures contracts, currency swaps and options on
currencies or currency futures contracts.
 
Derivatives may be used to attempt to protect against possible changes in the
market value of securities held or to be purchased for a Fund's portfolio
resulting from securities markets or currency exchange rate fluctuations, to
protect a Fund's unrealized gains in the value of its securities, to facilitate
the sale of those securities for investment purposes, to manage the effective
maturity or duration of a Fund's portfolio or to establish a position in the
derivatives markets as a temporary substitute for purchasing or selling
particular securities or to seek to enhance a Fund's income or gain.
 
Page 28
 
<PAGE>
<PAGE>
A Fund may use any or all types of Derivatives which it is authorized to use at
any time; no particular strategy will dictate the use of one type of
transaction rather than another, as use of any authorized Derivative will be a
function of numerous variables, including market conditions. The ability of a
Fund to utilize Derivatives successfully will depend on, in addition to the
factors described above, the investment manager's ability to predict pertinent
market movements, which cannot be assured. These skills are different from
those needed to select a Fund's portfolio securities. None of the Funds is a
'commodity pool' (i.e., a pooled investment vehicle which trades in commodity
futures contracts and options thereon and the operator of which is registered
with the CFTC), and Derivatives involving futures contracts and options on
futures contracts will be purchased, sold or entered into only for bona fide
hedging purposes, provided that a Fund may enter into such transactions for
purposes other than bona fide hedging if, immediately thereafter, the sum of
the amount of its initial margin and premiums on open contracts and options
would not exceed 5% of the liquidation value of the Fund's portfolio, after
taking into account unrealized profits and losses on existing contracts
provided, further, that, in the case of an option that is in-the-money, the
in-the-money amount may be excluded in calculating the 5% limitation. The use
of certain Derivatives in certain circumstances will require that a Fund
segregate cash, liquid high grade debt obligations or other assets to the
extent a Fund's obligations are not otherwise 'covered' through ownership of
the underlying security, financial instrument or currency. Derivatives involve
special risks, including possible default by the other party to the
transaction, illiquidity and, to the extent the investment manager's view as to
certain market movements is incorrect, the risk that the use of Derivatives
could result in significantly greater losses than if it had not been used. Use
of put and call options could result in losses to a Fund, force the purchase or
sale of portfolio securities at inopportune times or for prices higher or lower
than current market values, or cause a Fund to hold a security it might
otherwise sell. The use of currency transactions could result in a Fund
incurring losses as a result of the imposition of exchange controls, suspension
of settlements, or the inability to deliver or receive a specified currency in
addition to exchange rate fluctuations. The use of options and futures
transactions entails certain special risks. In particular, the variable degree
of correlation between price movements of futures contracts and price movements
in the related portfolio position of a Fund could create the possibility that
losses on the Derivative will be greater than gains in the value of the Fund's
position. In addition, futures and options markets could be illiquid in some
circumstances and certain over-the-counter options could have no markets. A
Fund might not be able to close out certain positions without incurring
substantial losses. To the extent a Fund utilizes futures and options
transactions for hedging, such transactions should tend to minimize the risk of
loss due to a decline in the value of the hedged position and, at the same
time, limit any potential gain to the Fund that might result from an increase
in value of the position. Finally, the daily variation margin requirements for
futures contracts create a greater ongoing potential financial risk than would
purchases of options, in which case the exposure is limited to the cost of the
initial premium and transaction costs. Losses resulting from the use of
Derivatives will reduce a Fund's net asset value, and possibly income, and the
losses may be significantly greater than if Derivatives had not been used.
Additional information regarding the risks and special considerations
associated with Derivatives appears in Appendix B to this Prospectus and the
Statement of Additional Information.
 
The degree of a Fund's use of Derivatives may be limited by certain provisions
of the Code. See 'Dividends, Distributions and Taxes.'
 
                                   Investment Limitations
                                   ---------------------------------------------
 
The following investment restrictions and certain of those described in the
Statement of Additional Information are fundamental policies applicable to the
individual Funds which may be changed only when permitted by law and approved
by the holders of a majority of each Fund's outstanding voting securities, as
defined in the 1940 Act. Except for the investment restrictions set forth below
and in
 
                                                                         Page 29
 
<PAGE>
<PAGE>
the Statement of Additional Information and each Fund's investment objective,
the other policies and percentage limitations referred to in this Prospectus
and in the Statement of Additional Information are not fundamental policies of
the Funds and may be changed by vote of the applicable Fund's Board of
Directors without shareholder approval.
 
If a percentage restriction on investment or utilization of assets is adhered
to at the time an investment is made, a later change in percentage ownership
resulting from changing market values or similar type of event will not be
considered a violation of such restriction.
 
MONEY MARKET FUND
 
The Money Market Fund may not:
 
     (1) invest more than 5% of the current value of its total assets in the
     securities of any one issuer, other than obligations issued or guaranteed
     by the U.S. government, its agencies or instrumentalities; however, up to
     25% of the value of the total assets of the Fund may be invested without
     regard to this limitation;
 
     (2) purchase any securities which would cause more than 25% of the value
     of its total assets at the time of such purchase to be invested in
     securities of one or more issuers conducting their principal business
     activities in the same industry, provided that there is no limitation with
     respect to investment in obligations issued or guaranteed by the U.S.
     government, its agencies or instrumentalities, with respect to bank
     obligations or with respect to repurchase agreements collateralized by any
     of such obligations;
 
     (3) borrow money except as a temporary measure from banks for
     extraordinary or emergency purposes, and in no event in excess of 15% of
     the value of its total assets, except that for the purpose of this
     restriction, short-term credits necessary for settlement of securities
     transactions are not considered borrowings (the Fund will not purchase any
     securities at any time while such borrowings exceed 5% of the value of its
     total assets); or
 
     (4) pledge, hypothecate, mortgage or otherwise encumber its assets in
     excess of 20% of the value of its total assets, and then only to secure
     borrowings permitted by (3) above.
 
With respect to investment limitation (1), the Fund intends (as a matter of
non-fundamental policy) to limit investments in the securities of any single
issuer (other than securities issued or guaranteed by the U.S. government, its
agencies or instrumentalities) to not more than 5% of the Fund's total assets
at the time of purchase, provided that the Fund may invest up to 25% of its
total assets in the securities of a single issuer for a period of up to three
Business Days.
 
HIGH YIELD BOND FUND, EMERGING MARKETS DEBT FUND AND
ASIA GROWTH FUND
 
The High Yield Bond Fund, Emerging Markets Debt Fund and Asia Growth Fund may
not:
 
     (1) With respect to the High Yield Bond Fund only, invest more than 5% of
     the current value of its total assets in the securities of any one issuer,
     other than obligations issued or guaranteed by the U.S. government, its
     agencies or instrumentalities; however, up to 25% of the value of the
     total assets of the Fund may be invested without regard to this
     limitation, so long as no more than 25% of its total assets are invested
     in the securities of any one issuer;
 
     (2) borrow money, except for temporary or emergency purposes and then not
     in excess of 5% of the value of the total assets of the applicable Fund at
     the time the borrowing is made, except that for the purpose of this
     restriction, short-term credits necessary for settlement of securities
     transactions are not considered borrowings (no Fund will purchase
     additional securities at any time its borrowings exceed 5% of total
     assets); or
 
Page 30
 
<PAGE>
<PAGE>
     (3) invest more than 25% of the total assets of each Fund in the
     securities of issuers having their principal activities in any particular
     industry, except for obligations issued or guaranteed by the U.S.
     government, its agencies or instrumentalities or by any state, territory
     or any possession of the United States or any of their authorities,
     agencies, instrumentalities or political subdivisions, or with respect to
     repurchase agreements collateralized by any of such obligations (for
     purposes of this restriction, supranational issuers will be considered to
     comprise an industry as will each foreign government that issues
     securities purchased by a Fund).
 
For purposes of investment limitations (1) and (3) above, both the borrower
under a Loan and the Lender selling a Participation will be considered an
'issuer.' See 'Additional Investment Activities and Risk Factors -- Loan
Participations and Assignments.'
 
                                           Purchase and
                                           Redemption of Shares
 
                                           -------------------------------------
 
NET ASSET VALUE
 
For the purpose of pricing purchase and redemption orders, the net asset value
per share of each Fund is calculated separately and is determined once daily
for each Fund (other than the Money Market Fund) as of the close of regularly
scheduled trading on the New York Stock Exchange ('NYSE') (4:00 p.m., New York
time) and twice daily for the Money Market Fund, once at 12:00 noon (New York
time) and again at 4:00 p.m. (New York time). With respect to each Fund, such
calculation is determined on each day that the NYSE is open for trading, i.e.,
Monday through Friday, except for New Year's Day, President's Day, Good Friday,
Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day,
and the preceding Friday or subsequent Monday when one of those holidays falls
on a Saturday or Sunday, respectively. Net asset value per share of each Fund
is calculated by dividing the value of the Fund's securities and other assets,
less liabilities, by the number of shares outstanding. In calculating net asset
value, all portfolio securities will be valued at market value when there is a
reliable market quotation available for the securities and otherwise pursuant
to procedures adopted by the applicable Fund's Board of Directors. Securities
that are primarily traded on foreign exchanges generally are valued at the
preceding closing values of such securities on their respective exchanges,
except that when an occurrence subsequent to the time a value was so
established is likely to have changed such value, then the fair value of those
securities will be determined by consideration of other factors by or under the
direction of the applicable Fund's Board of Directors. Securities may be valued
by independent pricing services which use prices provided by market-makers or
estimates of market values obtained from yield data relating to instruments or
securities with similar characteristics. In valuing a Fund's assets, any assets
or liabilities initially expressed in terms of a foreign currency are converted
to U.S. dollar equivalents at the then current exchange rate. Corporate actions
by issuers of foreign securities held by the Fund, such as payment of dividends
or distributions, are reflected in the net asset value on the ex-dividend date
therefor, except that such actions will be so reflected on the date the Fund is
actually advised of the corporate action if subsequent to the ex-dividend date.
Further information regarding the Funds' valuation policies is contained in the
Statement of Additional Information.
 
The Money Market Fund uses the amortized cost method to value its portfolio
securities and seeks to maintain a stable net asset value of $1.00 per share.
Each of the other Funds values short-term investments that mature in 60 days or
less at amortized cost. If a Fund acquires securities with more than sixty days
remaining to maturity, they will be valued at current market value until the
60th day prior to maturity, and will then be valued on an amortized cost basis
based upon the value on such date unless the Board determines during such
60-day period that this amortized cost basis does not represent fair value. The
amortized cost method involves valuing a security at its cost and amortizing
 
                                                                         Page 31
 
<PAGE>
<PAGE>
any discount or premium over the period until maturity, regardless of the
impact of fluctuating interest rates on the market value of the security. See
the Statement of Additional Information for a more complete description of the
amortized cost method.
 
PURCHASE PROCEDURES
 
There is no front-end sales charge or contingent-deferred sales charge imposed
on purchases of Fund shares. Under certain circumstances, certain
broker/dealers may impose transaction fees on the purchase and/or sale of
shares. The minimum initial investment in the Money Market Fund is $250,000 and
the minimum investment in the other Funds is $1,000,000. Subsequent purchases
may be made in any amount.
 
Shares may be purchased by completing a Purchase Application and mailing it,
together with your check payable to Salomon Brothers Funds, to:
 

Investors Bank & Trust Company
P.O. Box 1537
Boston, Massachusetts 02205-1537
Attention: Transfer Agent

 
Subsequent investments may be made at any time by mailing a check to Investors
Bank and Trust Company, the Funds' transfer agent and dividend disbursing agent
(the 'Transfer Agent') at the address set forth above, along with a detachable
stub from the Statement of Account (or a letter providing the account number).
Shareholders should be sure to write the Fund's account number on the check.
Initial purchases of Fund shares may not be made by third party check.
 
Shares of each Fund may be purchased on any business day at the net asset value
per share next determined after receipt of a purchase order. Shares
certificates will not be issued.
 
Share purchase orders are effective on the date the Fund receives a completed
Account Application Form (and other required documents) and federal funds
become available.
 
Initial and subsequent investments may also be made by wire transfer. The
investor should instruct the wiring bank to transmit the specified amount in
federal funds to:
 

Investors Bank & Trust Company
ABA #011-001-438
Account Name: Salomon Brothers Institutional Series Funds
  Attn: (Name of Fund)
  Salomon DDA#: 456789123
  Name of Account:
  Account #:
  Amount of Wire:

 
Shareholders should note that their bank may charge a fee in connection with
transferring money by bank wire.
 
For a share purchase order for any Fund other than the Money Market Fund to
become effective on a particular business day, prior to 4:00 p.m. (New York
time): (i) in the case of a wire transfer payment, a purchaser must call (800)
347-6028 to inform the Transfer Agent of an incoming wire transfer; or (ii) in
the case of payment by check or money order, a complete share purchase order
must be actually received by the Transfer Agent, and, in either case, federal
funds must be received by the Transfer Agent, on behalf of the Fund. If federal
funds are received by a Fund that same day, the order will be effective on that
day. If a Fund receives notification of a wire transfer or a complete share
purchase order after 4:00 p.m., or if federal funds are not received by the
Transfer Agent, such purchase order shall be executed as of the date that
federal funds are actually received. Purchase
 
Page 32
 
<PAGE>
<PAGE>
orders for shares of the Money Market Fund placed by 12:00 noon (New York time)
on any business day will be executed and begin to earn dividends that same day
if payment is received in or converted into federal funds by 12:00 noon (New
York time) that day. Purchase orders received after 12:00 noon (New York time)
or for which payment is received in or converted into federal funds after 12:00
noon (New York time) will be executed and begin to earn dividends on the
following business day.
 
REDEMPTION PROCEDURES
 
Each Fund will redeem all full and fractional shares of the Fund upon request
on any business day at the applicable net asset value determined after the
receipt of proper redemption instructions. Shareholders liquidating their
holdings will receive upon redemption all dividends reinvested through the date
of redemption. If notice of redemption is received on any business day, the
redemption will be effective on the date of receipt. Payment will ordinarily be
made by wire on the next business day, but, in any case, within no more than
seven business days from the date of receipt. If the notice is received on a
day that is not a business day or after the close of regularly scheduled
trading on the NYSE, the redemption notice will be deemed received as of the
next business day. The Funds do not charge a redemption fee. The value of
shares at the time of redemption may be more or less than the shareholder's
cost.
 
For  the  convenience  of  shareholders,  each  Fund  has  established different
redemption procedures. No redemption requests  will be processed until the  Fund
has  received  a completed  Purchase Application,  and  no redemption  of shares
purchased by check will be made until  all checks received for such shares  have
been collected, which may take up to 15 days or more.
 
REDEMPTION BY MAIL
 
Shares  may  be  redeemed by  mail  by  submitting a  written  request  from the
registered owner(s) signed exactly as  shares are registered with the  signature
guaranteed  by an acceptable guarantor. The Transfer Agent has adopted standards
and procedures pursuant to which  signature-guarantees in proper form  generally
will  be accepted from domestic banks, brokers, dealers, credit unions, national
securities exchanges, registered securities associations, clearing agencies  and
savings  associations,  as  well as  from  participants  in the  New  York Stock
Exchange Medallion Signature Program,  the Securities Transfer Agents  Medallion
Program  ('STAMP') and the Stock  Exchanges Medallion Program. Shareholders with
any questions regarding signature-guarantees should contact the transfer agent.
 
In certain instances, the Transfer  Agent may require additional documents  such
as,  but not limited to, trust  instruments, death certificates, appointments as
executor or administrator or certificates of corporate authority.
 
Checks for redemption proceeds will be mailed to the address of record within
seven days of redemption. Each Fund reserves the right to reject any order for
redemption.
 
REDEMPTION BY WIRE
 
If redemption by wire has been elected in the Purchase Application, shares may
be redeemed on any business day upon request made by telephone or letter. A
shareholder or any authorized agent (so designated on the Account Application
Form) must provide Investors Bank with the dollar or share amount to be
redeemed, the account to which the redemption proceeds should be wired, the
name of the shareholder and the shareholder's account number. Shareholders
should note that their bank may charge a fee in connection with transferring
money by wire.
 
A shareholder may change its authorized agent, the address of record or the
account designated to receive redemption proceeds at any time by providing the
Transfer Agent with written instructions signature guaranteed as described
above.
 
                                                                         Page 33
 
<PAGE>
<PAGE>
TELEPHONE REDEMPTION
 
A shareholder may request redemption by calling the Transfer Agent at (800)
347-6028. Proceeds from telephone redemptions will be forwarded to the
shareholder by check unless the shareholder has requested redemption by wire in
the manner described above under 'Redemption by Wire.' The check will be made
only payable to the registered shareholder and sent to the address of record on
file with the Transfer Agent. Each Fund reserves the right to refuse a
telephone request for redemption if it is believed advisable to do so.
Procedures for redeeming shares by telephone may be modified or terminated at
any time by the Funds. Neither the Funds nor the Transfer Agent will be liable
for following redemption instructions received by telephone which are
reasonably believed to be genuine, and the shareholder will bear the risk of
loss in the event of unauthorized or fraudulent telephone instructions. Each
Fund will employ reasonable procedures to confirm that instructions
communicated by telephone are genuine. Each Fund and/or the Transfer Agent may
be liable for any losses due to unauthorized or fraudulent instructions if they
do not follow such procedures. Each Fund may require personal identification
codes.
 
SMALL ACCOUNTS
 
Each Fund reserves the right, upon not less than 30 days' written notice, to
redeem shares in an account which has a value of $10,000 or less, if the
reduction in value is the result of shareholder redemptions or transfers and
not as a result of a decline in the net asset value. However, any shareholder
affected by the exercise of this right will be allowed to make additional
investments prior to the date fixed for redemption to avoid liquidation of the
account.
 
EXCHANGE PRIVILEGE
 
Shareholders of any Fund may exchange all or part of their shares for shares of
any other Fund at the applicable relative net asset value per share. The value
of the shares exchanged must meet the investment minimum of the Fund into which
the investor is exchanging. Shares of a Fund are eligible for exchange 30 days
after purchase.
 
Each Fund reserves the right to refuse a telephone request for exchange if it
is believed advisable to do so. Procedures for exchanging shares by telephone
may be modified or terminated at any time by a Fund. None of the Funds, the
Transfer Agent nor Salomon Brothers will be liable for following exchange
instructions received by telephone, which are reasonably believed to be
genuine, and the shareholder will bear the risk of loss in the event of
unauthorized or fraudulent telephone instructions. The Funds, the Transfer
Agent and Salomon Brothers may employ reasonable procedures to confirm that
instructions communicated by telephone are genuine. The Funds, the Transfer
Agent and Salomon Brothers may be liable for any losses due to unauthorized or
fraudulent instructions if they do not follow such procedures. When requesting
an exchange by telephone, shareholders should have available the correct
account registration and account numbers or tax identification number.
 
The exchange of shares of one Fund for shares of another Fund is treated for
federal income tax purposes as a sale of the shares given in exchange by the
shareholder, and an exchanging shareholder may, therefore, realize a taxable
gain or loss. See 'Dividends, Distributions and Taxes.'
 
The exchange privilege is available to shareholders residing in any state in
which the shares of the Fund being acquired may be legally sold. Each Fund
reserves the right to reject any exchange request in whole or in part. The
exchange privilege may be modified or terminated at any time upon written
notice to shareholders.
 
Page 34
 
<PAGE>
<PAGE>
                                                                      Management
 
                                           -------------------------------------
 
DIRECTORS AND OFFICERS
 
The business and affairs of each Fund are managed under the direction of its
Board of Directors. The Board of Directors approves all significant agreements
between a Fund and the persons or companies that furnish services to the Fund,
including agreements with its distributor, investment manager, administrator,
custodian and transfer agent. The day-to-day operations of the Fund are
delegated to the Fund's investment manager and administrator. The Statement of
Additional Information contains general background information regarding the
Directors and officers of each Fund.
 
INVESTMENT MANAGER
 
Each Fund retains SBAM as its investment manager under an investment management
contract. SBAM is a wholly-owned subsidiary of Salomon Brothers Holding Company
Inc, which is in turn wholly-owned by SI. SBAM was incorporated in 1987 and
together with affiliates in London, Frankfurt and Hong Kong, SBAM provides a
broad range of fixed-income and equity investment advisory services to various
individuals and institutional clients located throughout the world, and serves
as investment adviser to various investment companies. In providing such
services, SBAM has access to SI's more than 400 economists, mortgage, bond,
sovereign and equity analysts. As of March 31, 1997, SBAM and its worldwide
asset management affiliates managed approximately $20.8 billion, of which
approximately $1.3 billion is invested in high yield securities and
approximately $2.3 billion of which is invested in emerging market country debt
securities. SBAM's offices are located at 7 World Trade Center, New York, New
York 10048.
 
Pursuant to a Subadvisory Agreement, SBAM has retained Salomon Brothers Asset
Management Asia Pacific Limited to act as sub-adviser to the Asia Growth Fund,
subject to the supervision of SBAM. Like SBAM, SBAM AP is an indirect,
wholly-owned subsidiary of SI. SBAM AP, which was formed in 1995, is a member
of the Hong Kong Securities and Futures Commission and is registered as an
investment adviser in the United States pursuant to the Investment Advisers Act
of 1940, as amended. The business address of SBAM AP is Three Exchange Square,
Hong Kong.
 
Peter J. Wilby is primarily responsible for the day-to-day management of the
High Yield Bond Fund and the Emerging Markets Debt Fund. Mr. Wilby, who joined
SBAM in 1989, is a Managing Director of Salomon Brothers and SBAM and a Senior
Portfolio Manager of SBAM, responsible for SBAM's investment company and
institutional portfolios which invest in high yield non-U.S. and U.S. corporate
debt securities, high yield foreign sovereign debt securities and emerging
market debt securities. From 1984 to 1989, Mr. Wilby was employed by Prudential
Capital Management Group ('Prudential'), where he served as Director of
Prudential's credit research unit as a corporate and sovereign credit analyst.
Mr. Wilby also managed high yield bonds and leveraged securities for Prudential
mutual funds and institutional portfolios. Mr. Wilby is the portfolio manager
for Salomon Brothers High Yield Bond Fund, a portfolio of Series Funds, Global
Partners Income Fund Inc., The Emerging Markets Income Fund Inc, The Emerging
Markets Income Fund II Inc, The Emerging Markets Floating Rate Fund Inc,
Salomon Brothers Worldwide Income Fund Inc, Salomon Brothers High Income Fund
Inc, the high yield and sovereign bond portions of the Salomon Brothers
Strategic Bond Fund, a portfolio of Series Funds and the foreign sovereign debt
component of Salomon Brothers 2008 Worldwide Dollar Government Term Trust Inc.
 
Giampaolo G. Guarnieri is primarily responsible for the day-to-day management
of the Asia Growth Fund. Mr. Guarnieri has served as a Director of SBAM AP
since July 1996 and has been employed as a Senior Portfolio Manager since
joining SBAM AP in April 1995. Prior to joining SBAM AP, Mr. Guarnieri spent
five years at Credit Agricole Asset Management (South East Asia) Limited in Hong
Kong, a wholly-owned subsidiary of the Credit Agricole Group as a senior
portfolio manager since
 
                                                                         Page 35
 
<PAGE>
<PAGE>
1992 and as head of direct investment activities prior to that. Mr. Guarnieri
is also portfolio manager of Salomon Brothers Asia Growth Fund, a portfolio of
Series Funds.
 
Subject to policy established by the Board of Directors, which has overall
responsibility for the business and affairs of each Fund, SBAM manages the
investment and reinvestment of each Fund's assets pursuant to the applicable
management contract. SBAM also furnishes office space, personnel and certain
facilities required for the performance by SBAM of certain additional services
provided by it to each Fund under the applicable management contract, including
SEC compliance, supervision of Fund operations and certain administrative and
clerical services, and pays the compensation of the Funds' officers, employees
and directors affiliated with SBAM. Except for the expenses paid by SBAM that
are described herein, each Fund bears all costs of its operations. See
'Expenses' below.
 
As compensation for its services, the Money Market Fund pays SBAM a monthly fee
at an annual rate of .20% of the Fund's average daily net assets. On November
16, 1995 and March 26, 1996, the Fund's Board of Directors and stockholders,
respectively, approved an increase in the management fee payable by the Fund
from .10% to .20% of the Fund's average daily net assets. SBAM has voluntarily
agreed to reduce or otherwise limit expenses of the Money Market Fund
(exclusive of taxes, interest and extraordinary expenses such as litigation and
indemnification expenses), on an annualized basis, to .18% of the Fund's
average daily net assets.
 
As compensation for its services, the High Yield Bond Fund pays SBAM a monthly
fee at an annual rate of .50% of the Fund's average daily net assets; the
Emerging Markets Debt Fund pays SBAM a monthly fee at an annual rate of .70% of
the Fund's average daily net assets; and the Asia Growth Fund pays SBAM a
monthly fee at an annual rate of .75% of the Fund's average daily net assets.
SBAM will pay SBAM AP, as full compensation for its services under the
Subadvisory Agreement, a portion of its investment management fee. SBAM has
voluntarily agreed to reduce or otherwise limit expenses of the High Yield Bond
Fund, the Emerging Markets Debt Fund and the Asia Growth Fund (exclusive of
taxes, interest and extraordinary expenses such as litigation and
indemnification expenses), on an annualized basis to .55%, .75% and 1.00%,
respectively, of the applicable Fund's average daily net assets.
 
The services of SBAM and SBAM AP are not deemed to be exclusive, and nothing in
the relevant agreements will prevent either of them or their affiliates from
providing similar services to other investment companies and other clients
(whether or not their investment objectives and policies are similar to those
of any of the Funds) or from engaging in other activities.
 
Consistent with the Rules of Fair Practice of the National Association of
Securities Dealers Regulation Inc. and subject to seeking the most favorable
price and execution available, SBAM and SBAM AP may consider sales of shares of
the Funds as a factor in the selection of broker/dealers to execute portfolio
transactions for the Funds. The Funds may use Salomon Brothers to execute
portfolio transactions when SBAM or SBAM AP believe that the broker's charge
for the transaction does not exceed usual and customary levels. See 'Portfolio
Transactions' in the Statement of Additional Information.
 
DISTRIBUTOR
 
Salomon Brothers is the Funds' distributor. Salomon Brothers, located at 7
World Trade Center, New York, New York 10048, is a wholly-owned subsidiary of
Salomon Brothers Holding Company Inc, which is in turn wholly-owned by SI. It
is also one of the largest securities dealers in the world and a registered
broker/dealer. Salomon Brothers makes markets in securities and provides a
broad range of underwriting, research, and financial advisory services to
governments, international corporations, and institutional investors. Salomon
Brothers from time to time may receive fees from SBAM in connection with
processing and other services that it provides for certain shareholder accounts.
 
Page 36
 
<PAGE>
<PAGE>
ADMINISTRATOR
 
Each Fund employs Investors Bank & Trust Company ('IBT'), 89 South Street,
Boston, Massachusetts 02111, under an administration agreement to provide
certain administrative services to each Fund. IBT is not involved in the
investment decisions made with respect to the Funds. The services provided by
IBT under the administration agreements include certain accounting, clerical
and bookkeeping services, Blue Sky reports, corporate secretarial services and
assistance in the preparation and filing of tax returns and reports to
shareholders and the SEC. For its services as administrator, transfer agent and
custodian to the Funds, each Fund pays IBT a fee at an annual rate of .10% of
each Fund's average daily net assets up to $500 million in net assets and .05%
of each Fund's average daily net assets in excess of $500 million.
 
EXPENSES
 
Each Fund's expenses include taxes, interest, fees and salaries of the
directors and officers who are not directors, officers or employees of the
Fund's service contractors, SEC fees, state securities qualification fees,
costs of preparing and printing prospectuses for regulatory purposes and for
distribution to existing shareholders, advisory and administration fees,
charges of the custodian, transfer agent and dividend disbursing agent, certain
insurance premiums, outside auditing and legal expenses, costs of shareholder
reports and shareholder meetings and any extraordinary expenses. Each Fund also
pays for brokerage fees and commissions (if any) in connection with the
purchase and sale of portfolio securities.
 
                                           Dividends, Distributions
                                           and Taxes
 
                                           -------------------------------------
 
DIVIDENDS AND DISTRIBUTIONS
 
The Money Market Fund intends to declare as a dividend substantially all of its
net investment income at the close of each Business Day to the Fund's
shareholders of record at 12:00 noon (New York time) on that day, and will pay
such dividends monthly. The High Yield Bond Fund, the Emerging Markets Debt
Fund and the Asia Growth Fund will declare dividends from net investment income
annually and pay them annually.
 
Net investment income is a Fund's investment company taxable income, as that
term is defined in the Code, determined without regard to the deduction for
dividends paid and excluding any net realized capital gains. For the purpose of
calculating dividends, net investment income shall consist of interest earned,
which includes, where applicable, any discount accredited or premium amortized
to the date of maturity, minus estimated expenses.
 
Shares of a Fund (other than the Money Market Fund, as described below) are
entitled to dividends declared beginning on the day after the purchase order is
received in good order. Purchase orders for shares of the Money Market Fund for
which payment is received in or converted into federal funds by 12:00 noon (New
York time) on any Business Day will become effective that day and begin to earn
dividends on that day. Purchase orders for shares of the Money Market Fund for
which payment is received in or converted into federal funds after 12:00 noon
(New York time) on any Business Day will become effective that day and begin to
earn dividends on the following Business Day. With respect to the Money Market
Fund, shares redeemed by 12:00 noon (New York time) will accrue dividends
through the day prior to redemption, shares redeemed after 12:00 noon (New York
time) will accrue dividends on the day of redemption. Net investment income for
a Saturday, Sunday or holiday will be declared as a dividend on the previous
Business Day.
 
                                                                         Page 37
 
<PAGE>
<PAGE>
Net realized short-term capital gains of each Fund, if any, will be distributed
whenever the Board of Directors determines that such distributions would be in
the best interest of shareholders, but in any event at least once a year. Each
Fund distributes annually any net realized long-term capital gains from the
sale of securities (after deducting any net realized losses that may be carried
forward from prior years). The Money Market Fund does not expect to realize any
long-term capital gains.
 
If, for any full fiscal year, a Fund's total distributions exceed net
investment income and net realized capital gains, the excess distributions
generally will be treated as a tax-free return of capital (up to the amount of
the shareholder's tax basis in his or her shares). The amount treated as a
tax-free return of capital will reduce a shareholder's adjusted basis in his or
her shares. Pursuant to the requirements of the 1940 Act and other applicable
laws, a notice will accompany any distribution paid from sources other than net
investment income. In the event a Fund distributes amounts in excess of its net
investment income and net realized capital gains, such distributions may have
the effect of decreasing the Fund's total assets, which may increase the Fund's
expense ratio.
 
Dividend and/or capital gain distributions will be reinvested automatically in
additional shares of a Fund at net asset value and such shares will be
automatically credited to a shareholder's account, unless a shareholder elects
to receive either dividends or capital gains distributions in cash. If such
distributions are to be sent to an address other than the address on record or
the account designated to receive redemption proceeds a signature guarantee is
required. See 'Redemptions Procedures' above for instructions concerning
signature guarantees. Such signature must be signed exactly as registered with
the Transfer Agent. Shareholders may change the distribution option at any time
by notification to the Transfer Agent prior to the record date of any such
dividend or distribution.
 
If a shareholder elects to receive dividends and/or distributions in cash and
the check cannot be delivered to a shareholder due to an invalid address or
otherwise remains uncashed by the shareholder for a period of six months, each
Fund reserves the right to reinvest the dividend and/or distribution in a
shareholder's account at the then-current net asset value and to convert the
shareholder's election to automatic reinvestment in shares of that Fund.
 
TAXES
 
FEDERAL INCOME TAX MATTERS. The Money Market Fund qualified for the fiscal year
ended December 31, 1996 and High Yield Bond Fund, Emerging Markets Debt Fund
and Asia Growth Fund qualified for the fiscal year ended February 28, 1997, and
each intends to continue to qualify and elect to be treated, as a regulated
investment company under Subchapter M of the Code. If it so qualifies, a Fund
will not be subject to U.S. federal income taxes on its net investment income
(i.e., its investment company taxable income, as that term is defined in the
Code, determined without regard to the deduction for dividends paid) and net
capital gain (i.e., the excess of a Fund's net realized long-term capital gain
over its net realized short-term capital loss), if any, that it distributes to
its shareholders in each taxable year, provided that it distributes to its
shareholders at least 90% of its net investment income for such taxable year.
If in any year a Fund fails to qualify as a regulated investment company, the
Fund would incur regular corporate federal income tax on its taxable income for
that year and be subject to certain additional distribution requirements upon
requalification.
 
Each Fund will be subject to federal corporate income tax (currently at a
maximum rate of 35%) on any undistributed income and to alternative minimum tax
(currently at a maximum rate of 28%) on alternative minimum taxable income.
 
Each Fund is subject to a nondeductible 4% excise tax calculated as a
percentage of certain undistributed amounts of ordinary income and net realized
capital gains. To the extent possible, each Fund intends to make sufficient
distributions to avoid the application of both the corporate income and excise
taxes.
 
Page 38
 
<PAGE>
<PAGE>
All dividends and distributions to shareholders of a Fund of net investment
income will be taxable to shareholders whether paid in cash or reinvested in
additional shares. For federal income tax purposes, distributions of net
investment income, which includes the excess of the Fund's net realized
short-term capital gains realized over net realized long-term capital losses,
are taxable to shareholders as ordinary income.
 
Distributions of 'net capital gains' designated by a Fund as 'capital gain
dividends' will be taxable as long-term capital gains, whether paid in cash or
additional shares, regardless of how long the shares have been held by such
shareholders, and such distributions will not be eligible for the dividends
received deduction. A portion of a Fund's dividends may qualify for the
dividends received deduction available to corporations. In general, the maximum
federal income tax rate imposed on individuals with respect to long-term
capital gain will be limited to 28%, whereas the maximum federal income tax rate
imposed on individuals with respect to ordinary income (and short-term capital
gains, which currently are taxed at the same rates as ordinary income) will be
39.6%. With respect to corporate taxpayers, long-term capital gains currently
are taxed at the same federal income tax rates as ordinary income and
short-term capital gains. Investors should consider the tax implications of
buying shares shortly before the record date of a distribution because
distributions will be taxable even though the net asset value of shares of a
Fund is reduced by the distribution.
 
Funds investing in foreign securities or currencies may be required to pay
withholding or other taxes to foreign governments on dividends and interest.
The investment yield of a Fund investing in foreign securities or currencies
will be reduced by these foreign taxes. Shareholders will bear the cost of any
foreign taxes but may not be able to claim a foreign tax credit or deduction
for these foreign taxes. In addition, a Fund investing in securities of passive
foreign investment companies may be subject to U.S. federal income taxes (and
interest on such taxes) as a result of such investments. The investment yield
of a Fund making such investments will be reduced by these taxes and interest.
Shareholders will bear the cost of these taxes and interest, but will not be
able to claim a deduction for these amounts.
 
The redemption, sale or exchange of shares of one Fund for shares of another is
a taxable event and may result in a gain or loss. Gain or loss, if any,
recognized on the sale or other disposition of shares of a Fund will be taxed
as capital gain or loss if the shares are capital assets in the shareholder's
hands. Generally, a shareholder's gain or loss will be a long-term gain or loss
if the shares have been held for more than one year. If a shareholder sells or
otherwise disposes of shares of a Fund before holding them for more than six
months, any loss on the sale or other disposition of such shares shall be
treated as a long-term capital loss to the extent of any capital gain dividends
received by the shareholder with respect to such shares. A loss realized on a
sale or exchange of shares may be disallowed if other shares are acquired
within a 61-day period beginning 30 days before and ending 30 days after the
date that the shares are disposed of.
 
Generally, shareholders will be taxable on dividends or distributions in the
year of receipt. However,
if a Fund declares a dividend or distribution in October, November or December
to shareholders
of record on a specified date in such a month which is actually paid during the
following January, it will be deemed to have been received by the shareholders
and paid by the Fund no later than December 31 of the year in which the
dividend or distribution is declared.
 
A Fund may make investments that produce income that is not matched by a
corresponding cash distribution to the Fund, such as investments in Pay-In-Kind
bonds or in obligations such as certain Brady Bonds or zero coupon securities
having original issue discount (i.e., an amount equal to the excess of the
stated redemption price of the security at maturity over its issue price), or
market discount (i.e., an amount equal to the excess of the stated redemption
price of the security over the basis of such bond immediately after it was
acquired) if the Fund elects to accrue market discount on a current basis. In
addition, income may continue to accrue for federal income tax purposes with
respect to a non-performing investment. Any such income would be treated as
income earned by a Fund and therefore would be subject to the distribution
requirements of the Code. Because such
 
                                                                         Page 39
 
<PAGE>
<PAGE>
income may not be matched by a corresponding cash distribution to a Fund, such
Fund may be required to borrow money or dispose of other securities to be able
to make distributions to its investors. The extent to which a Fund may
liquidate securities at a gain may be limited by the requirement that less than
30% of its annual gross income be derived from the sale or other disposition of
securities and certain other investments held for less than three months (the
'short-short test'). In addition, if an election is not made to currently
accrue market discount with respect to a market discount bond, all or a portion
of any deduction or any interest expense incurred to purchase or hold such bond
may be deferred until such bond is sold or otherwise disposed of.
 
Each Fund may be required to withhold federal income tax at a rate of 31%
('backup withholding') from dividends and redemption proceeds paid to
noncorporate shareholders. This tax may be withheld from dividends if (i) the
payee fails to furnish the Fund with the payee's correct taxpayer
identification number (e.g., an individual's social security number), (ii) the
Internal Revenue Service ('IRS') notifies the Fund that the payee has failed to
report properly certain interest and dividend income to the IRS and to respond
to notices to that effect, or (iii) when required to do so, the payee fails to
certify that he or she is not subject to backup withholding. Redemption
proceeds may be subject to withholding under the circumstances described in (i)
above. Backup withholding is not an additional tax and any amounts withheld may
be credited against the shareholder's federal income tax liability.
 
HONG KONG TAX MATTERS. The Asia Growth Fund would be subject to Hong Kong
profits tax, which is currently charged at the rate of 16.5% for corporations
and 15% for individuals, if, by virtue of the fact that SBAM AP is located in
Hong Kong, (a) the Fund or its agents were deemed to carry on a trade,
profession or business in Hong Kong and (b) profits from that trade, profession
or business were to arise in or be derived from Hong Kong. Hong Kong profits
tax will not be payable in respect of profits from the sale of shares and other
securities transacted outside Hong Kong, interest arising or derived from
outside Hong Kong and profits in the nature of capital gains. The sale of
securities will not be treated as the sale of capital assets if the profit or
loss from such sale is regarded as attributable to a trade or business carried
on in Hong Kong. The Asia Growth Fund does not currently believe that it will
be subject to Hong Kong profits tax.
 
Dividends which the Fund pays to its shareholders are not taxable in Hong Kong
(whether through withholding or otherwise) under current legislation and
practice. No Hong Kong stamp duty will be payable in respect of transactions in
shares of the Asia Growth Fund provided that the register of shareholders is
maintained outside of Hong Kong.
                            ------------------------
 
Depending on the residence of the shareholder for tax purposes, distributions
may also be subject to state and local taxes or withholding taxes. Statements
detailing the tax status of each shareholders' dividends and distributions will
be mailed annually.
 
The foregoing is intended to be general information to shareholders and
potential investors in a Fund and does not constitute tax advice. Shareholders
and potential investors should consult their own tax advisers regarding
federal, state, local and foreign tax consequences of ownership of shares in a
Fund.
 
                              Account Services
- ----------------------------------------------
 
Shareholders of each Fund will be kept informed through semi-annual reports
showing diversification of investments and other financial data for such Fund.
Annual reports for all Funds will include audited financial statements.
Shareholders of each Fund will receive a Statement of Account following each
share transaction, except for shareholders of the Money Market Fund, who will
receive a Statement of Account at least monthly showing transactions in the
account, the total number of shares owned, and any dividends or distributions
paid. Shareholders can write or call a Fund at the address
 
Page 40
 
<PAGE>
<PAGE>
and telephone number on the front cover of this Prospectus with any questions
relating to their investment in shares of such Fund.
 
                                  Capital Stock
                                  ----------------------------------------------
 
The Institutional Series Funds was incorporated in Maryland on January 19,
1996. The authorized capital stock of the Institutional Series Funds consists
of 10,000,000,000 shares of common stock having a par value of $.001 per share.
Pursuant to the Institutional Series Funds' Articles of Incorporation, the
Board of Directors has authorized the issuance of three series of shares, each
representing shares in one of three separate funds. The High Yield Bond Fund,
the Emerging Markets Debt Fund and the Asia Growth Fund are the currently
existing portfolios of the Institutional Series Funds. The assets of each Fund
are segregated and separately managed. The Institutional Series Funds' Board of
Directors may, in the future, authorize the issuance of additional classes of
capital stock representing shares of additional investment portfolios.
 
The Money Market Fund, a  portfolio of the Series  Funds, changed its name  from
Salomon  Brothers U.S. Treasury Securities Money Market Fund to its current name
on March 26, 1996. The  Series Funds was incorporated  in Maryland on April  17,
1990.  On  March 26,  1996, shareholders  of  the Money  Market Fund  approved a
change in the Fund's  investment objective and  policies and certain  investment
restrictions  to those  described herein.  The authorized  capital stock  of the
Series Funds consists  of 10,000,000,000  shares of  common stock  having a  par
value   of  $.001  per  share.  Pursuant   to  the  Series  Funds'  Articles  of
Incorporation and Articles Supplementary, the Board of Directors has  authorized
the  issuance of ten  series of shares,  each representing shares  in one of ten
separate funds. In  addition to  the Money Market  Fund, the  portfolios of  the
Series  Funds  include Salomon  Brothers  National Intermediate  Municipal Fund,
Salomon Brothers U.S. Government Income  Fund, Salomon Brothers High Yield  Bond
Fund,  Salomon Brothers Strategic Bond Fund, Salomon Brothers Total Return Fund,
Salomon Brothers Asia  Growth Fund,  Salomon Brothers Cash  Management Fund  and
Salomon  Brothers New York Municipal Money Market  Fund. The assets of each fund
are segregated  and separately  managed. The  Series Funds'  Board of  Directors
may,  in the  future, authorize  the issuance  of additional  classes of capital
stock representing shares of additional investment portfolios.
 
As of the date of this Prospectus, SBAM and Salomon Brothers Holding Company
Inc, the parent company of SBAM, own a significant percentage of the
outstanding shares of the High Yield Bond Fund, Emerging Markets Debt Fund and
Asia Growth Fund. Consequently such entities are deemed to be 'control
persons,' as defined in the 1940 Act, of the Funds.
 
Although each Fund is offering only its own shares, it is possible that a Fund
could become liable for a misstatement in this Prospectus about another Fund.
The Directors of the Institutional Series Funds and the Series Funds have
considered this factor in approving the use of a combined Prospectus.
 
All shares of each Fund have equal voting rights and will be voted in the
aggregate, and not by series or class, except where voting by series or class
is required by law or where the matter involved affects only one series or
class. Each shareholder is entitled to cast, at all meetings of shareholders,
such number of votes as is equal to the number of full and fractional shares
held by such shareholder. All shares of each Fund will, when issued, be fully
paid and nonassessable. None of the Funds will issue any senior securities.
Under the corporate law of Maryland, the state of incorporation of the
Institutional Series Funds and the Series Funds, and the By-Laws of both the
Institutional Series Funds and the Series Funds, neither the Institutional
Series Funds nor the Series Funds is required and does not currently intend to
hold annual meetings of shareholders for the election of directors except as
required under the 1940 Act. A more complete statement of the voting rights of
shareholders is contained in the Statement of Additional Information.
 
                                                                         Page 41
 
<PAGE>
<PAGE>
                      [THIS PAGE INTENTIONALLY LEFT BLANK]
<PAGE>
<PAGE>
                                           Appendix A:
                                           Description of Ratings
 
                                           -------------------------------------
 
A  DESCRIPTION  OF  THE RATING  POLICIES  OF  MOODY'S, S&P  AND  FITCH INVESTORS
SERVICE, INC.  ('FITCH') WITH  RESPECT  TO BONDS  AND COMMERCIAL  PAPER  APPEARS
BELOW.
 
MOODY'S CORPORATE BOND RATINGS
 
Aaa -- Bonds which are rated 'Aaa' are judged to be of the best quality and
carry the service fees smallest degree of investment risk. Interest payments
are protected by a large or by an exceptionally stable margin, and principal is
secure. While the various protective elements are likely to change, such
changes as can be visualized are most unlikely to impair the fundamentally
strong position of such issues.
 
Aa -- Bonds which are rated 'Aa' are judged to be of high quality by all
standards. Together with the Aaa group they comprise what are generally known
as high grade bonds because margins of protection may not be as large as in Aaa
securities or fluctuation of protective elements may be of greater amplitude or
there may be other elements present which make the long-term risks appear
somewhat larger than in Aaa securities.
 
A -- Bonds which are rated 'A' possess many favorable investment qualities and
are to be considered as upper medium grade obligations. Factors giving security
to principal and interest are considered adequate but elements may be present
which suggest a susceptibility to impairment sometime in the future.
 
Baa -- Bonds which are rated 'Baa' are considered as medium grade obligations,
i.e., they are neither highly protected nor poorly secured. Interest payments
and principal security appear adequate for the present but certain protective
elements may be lacking or may be characteristically unreliable over any great
length of time. Such bonds lack outstanding investment characteristics and in
fact have speculative characteristics as well.
 
Ba -- Bonds which are rated 'Ba' are judged to have speculative elements; their
future cannot be considered as well assured. Often the protection of interest
and principal payments may be very moderate and thereby not well safeguarded
during both good and bad times over the future. Uncertainty of position,
characterizes bonds in this class.
 
B -- Bonds which are rated 'B' generally lack characteristics of a desirable
investment. Assurance of interest and principal payments or of maintenance and
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 to
a high degree. Such issues are often in default or have other marked
shortcomings.
 
C -- Bonds which are rated 'C' are the lowest rated class of bonds and issues
so rated can be regarded as having extremely poor prospects of ever attaining
any real investment standing.
 
Moody's applies numerical modifiers '1' '2' and '3' to certain of its ratings
classifications. The modifier '1' indicates that the security ranks in the
higher end of its generic rating category; the modifier '2' indicates a
mid-range ranking; and the modifier '3' indicates that the issue ranks in the
lower end of its generic rating category.
 
                                                                        Page A-1
 
<PAGE>
<PAGE>
S&P CORPORATE BOND RATINGS
 
AAA -- This is the highest rating assigned by Standard & Poor's to a debt
obligation and indicates an extremely strong capacity to repay principal and
pay interest.
 
AA -- Bonds rated 'AA' also qualify as high-quality debt obligations. Capacity
to repay principal and interest is very strong, and differs from 'AAA' issues
only in small degree.
 
A -- Bonds rated 'A' have a strong capacity to repay principal and pay
interest, although they are somewhat more susceptible to the adverse effects of
changes in circumstances and economic conditions than debt in higher rated
categories.
 
BBB -- Bonds rated 'BBB' are regarded as having an adequate capacity to repay
principal and pay interest. Whereas they normally exhibit adequate protection
parameters, adverse economic conditions or changing circumstances are more
likely to lead to a weakened capacity to repay principal and pay interest for
bonds in this category than for higher rated categories.
 
BB-B-CCC-CC-C -- Bonds rated 'BB', 'B', 'CCC' and 'C' are regarded, on balance,
as predominantly speculative with respect to the issuer's capacity to pay
interest and repay principal in accordance with the terms of the obligations.
BB indicates the lowest degree of speculation and C the highest degree of
speculation. While such bonds will likely have some quality and protective
characteristics, these are outweighed by large uncertainties or major risk
exposures to adverse conditions.
 
CI -- BONDS RATED 'CI' ARE INCOME BONDS ON WHICH NO INTEREST IS BEING PAID.
 
D -- Bonds rated 'D' are in default. The 'D' category is used when interest
payments or principal payments are not made on the date due even if the
applicable grace period has not expired unless S&P believes that such payments
will be made during such grace period. The 'D' rating is also used upon the
filing of a bankruptcy petition if debt service payments are jeopardized.
 
The ratings set both above may be modified by the addition of a plus or minus
to show relative standing within the major rating categories.
 
MOODY'S COMMERCIAL PAPER RATINGS
 
PRIME-1 -- Issuers (or related supporting institutions) rated 'Prime-1' have a
superior ability for repayment of senior short-term debt obligations. 'Prime-1'
repayment ability will often be evidenced by many of the following
characteristics: leading market positions in well-established industries, high
rates of return on funds employed, conservative capitalization structures with
moderate reliance on debt and ample asset protection, broad margins in earnings
coverage of fixed financial charges and high internal cash generation, and
well-established access to a range of financial markets and assured sources of
alternate liquidity.
 
PRIME-2 -- Issuers (or related supporting institutions) rated 'Prime-2' have a
strong ability for repayment of senior short-term obligations. This will
normally be evidenced by many of the characteristics cited above but to a
lesser degree. Earnings trends and coverage ratio, while sound, will be more
subject to variation. Capitalization characteristics, while still appropriate,
may be more affected by external conditions. Ample alternative liquidity is
maintained.
 
PRIME-3 -- Issuers (or related supporting institutions) rated 'Prime-3' have an
acceptable ability for repayment of senior short-term obligations. The effect
of industry characteristics and market compositions may be more pronounced.
Variability in earnings and profitability may result in changes in the level of
debt protection measurements and the requirement for relatively high financial
leverage. Adequate alternate liquidity is maintained.
 
NOT PRIME -- Issuers rated 'Not Prime' do not fall within any of the Prime
rating categories.
 
Page A-2
 
<PAGE>
<PAGE>
S&P COMMERCIAL PAPER RATINGS
 
A -- S&P commercial paper rating is a current assessment of the likelihood of
timely repayment of debt having an original maturity of no more than 365 days.
Ratings are graded into several categories, ranging from 'A-1' for the highest
quality obligations to 'D' for the lowest. The four categories are as follows:
 
A-1 -- This highest category indicates that the degree of safety regarding
timely payment is strong. Those issues determined to possess extremely strong
safety characteristics are 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.'
 
A-3 -- Issues carrying this designation have adequate capacity for timely
payment. They are, however, somewhat more vulnerable to the adverse effects of
changes in circumstances than obligations carrying the higher designations.
 
B -- Issues rated 'B' are regarded as having only speculative capacity for
timely payment.
 
C -- This rating is assigned to short-term debt obligations with a doubtful
capacity for payment.
 
D -- Debt Rated 'D' is in payment default. The 'D' rating category is used when
interest payments 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.
 
MOODY'S MUNICIPAL BOND RATINGS
 
Aaa -- Bonds which are rated Aaa are judged to be of the best quality and carry
the smallest degree of investment risk. Interest payments are protected by a
large or by an exceptionally stable margin, and principal is secure. While the
various protective elements are likely to change, such changes as can be
visualized are most unlikely to impair the fundamentally strong position of
such issues.
 
Aa -- Bonds which are rated Aa are judged to be of high-quality by all
standards. Together with the Aaa group they comprise what are generally known
as high grade bonds. They are rated lower than the best bonds because margins
of protection may not be as large as in Aaa securities or fluctuation of
protective elements may be of greater amplitude or there may be other elements
pursuant which make the long term risks appear somewhat larger than in Aaa
securities.
 
A -- Bonds which are rated A possess many favorable investment qualities and
are to be considered as upper medium grade obligations. Factors giving security
to principal and interest are considered adequate but elements may be present
which suggest a susceptibility to impairment sometime in the future.
 
Baa -- Bonds which are rated Baa are considered as medium grade obligations,
i.e., they are neither highly protected nor poorly secured. Interest payments
and principal security appear adequate for the present but certain protective
elements may be lacking or may be characteristically unreliable over any great
length of time. Such bonds lack outstanding investment characteristics and in
fact have speculative characteristics as well.
 
Moody's applies numerical modifiers '1', '2' and '3' to certain of its rating
classifications. The modifier '1' indicates that the security ranks in the
higher end of its generic rating category; the modifier '2' indicates a
mid-range ranking; and the modifier '3' indicates that the issue ranks in the
lower end of its generic rating category.
 
                                                                        Page A-3
 
<PAGE>
<PAGE>
S&P MUNICIPAL BOND RATINGS
 
AAA -- is the highest rating assigned by S&P to a debt obligation and indicates
an extremely strong capacity to pay principal and interest.
 
AA -- Bonds rated AA also qualify as high-quality debt obligations. Capacity to
pay principal and interest is very strong, and in the majority of instances
they differ from AAA issues only in small degrees.
 
A -- Bonds rated A have a strong capacity to pay principal and interest,
although they are somewhat more susceptible to the adverse effects of changes
in circumstances and economic conditions.
 
BBB -- Bonds rated BBB are regarded as having an adequate capacity to pay
principal and interest. Whereas they normally exhibit adequate protection
parameters, adverse economic conditions or changing circumstances are more
likely to lead to a weakened capacity to pay principal and interest for bonds
in this category than for bonds in the A category.
 
The ratings set forth above may be modified by the addition of a plus or minus
to show relative standing within the major rating categories.
 
MOODY'S RATINGS OF STATE AND MUNICIPAL NOTES
 
MIG-1/VMIG-1 -- Notes rated MIG-1/VMIG-1 are of the best quality. There is
present strong protection by established cash flows, superior liquidity support
or broad-based access to the market for refinancing.
 
MIG-2/VMIG-2 -- Notes which are rated MIG-2/VMIG-2 are of high-quality. Margins
of protection are ample though not so large as in the preceding group.
 
S&P RATINGS OF STATE AND MUNICIPAL NOTES
 
SP-1 -- Notes which are rated SP-1 have a very strong or strong capacity to pay
principal and interest. Those issues determined to possess overwhelming safety
characteristics will be given a plus (+) designation.
 
SP-2 -- Notes which are rated SP-2 have a satisfactory capacity to pay
principal and interest.
 
FITCH MUNICIPAL BOND RATINGS
 
AAA -- Bonds rated AAA by Fitch are considered to be investment grade and of
the highest credit quality. The obligor has an exceptionally strong ability to
pay interest and repay principal, which is unlikely to be affected by
reasonably foreseeable events.
 
AA -- Bonds rated AA by Fitch are considered to be investment grade and of very
high credit quality. The obligor's ability to pay interest and repay principal
is very strong, although not quite as strong as bonds rated AAA. Because bonds
rated in the AAA and AA categories are not significantly vulnerable to
foreseeable future developments, short-term debt of these issues is generally
rated F-1+ by Fitch.
 
A -- Bonds rated A by Fitch 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 by Fitch 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 consequences 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.
 
Page A-4
 
<PAGE>
<PAGE>
Plus and minus signs are used by Fitch to indicate the relative position of a
credit within a rating category. Plus and minus signs, however, are not used in
the AAA category.
 
FITCH SHORT-TERM RATINGS
 
Fitch short-term ratings apply, to debt obligations that are payable on demand
or have original maturities of, generally, up to three years, including
commercial paper, certificates of deposit, medium-term notes, and municipal and
investment notes.
 
The short-term rating places greater emphasis than a long-term rating on the
existence of liquidity necessary to meet the issuer's obligations in a timely
manner.
 
FITCH'S SHORT-TERM RATINGS ARE AS FOLLOWS:
 
F-1+ -- Issues assigned this rating are regarded as having the strongest degree
of assurance for timely payment.
 
F-1 -- Issues assigned this rating reflect an assurance of timely payment only
slightly less in degree than issues rated F-1+.
 
F-2 -- 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.
 
F-3 -- Issues assigned this rating have characteristics suggesting that the
degree of assurance for timely payment is adequate, although near-term adverse
changes could cause these securities to be rated below investment grade.
 
LOC -- The symbol LOC indicates that the rating is based on a letter of credit
issued by a commercial bank.
 
Like higher rated bonds, bonds rated in the Baa or BBB categories are
considered to have adequate capacity to pay principal and interest. However,
such bonds may have speculative characteristics, and changes in economic
conditions or other circumstances are more likely to lead to a weakened capacity
to make principal and interest payments than is the case with higher grade
bonds.
 
After purchase by a Fund, a security may cease to be rated or its rating may be
reduced below the minimum required for purchase by such Fund. Neither event
will require a sale of such security by a Fund. However, SBAM will consider
such event in its determination of whether such Fund should continue to hold
the security. To the extent the ratings given by Moody's or S&P may change as a
result of changes in such organizations or their rating systems, a Fund will
attempt to use comparable ratings as standards for investments in accordance
with the investment policies contained in this Prospectus and in the Statement
of Additional Information.
 
                                                                        Page A-5
 
<PAGE>
<PAGE>
                      [THIS PAGE INTENTIONALLY LEFT BLANK]
<PAGE>
<PAGE>
                                           Appendix B:
                                           General Characteristics and
                                           Risks of Derivatives
 
                                           -------------------------------------
 
A detailed discussion of Derivatives (as defined above and below) that may be
used by the investment manager on behalf of certain Funds follows below. The
description in this Prospectus of each Fund indicates which, if any, of these
types of transactions may be used by that Fund. A Fund will not be obligated,
however, to use any Derivatives and makes no representation as to the
availability of these techniques at this time or at any time in the future.
'Derivatives,' as used in this Appendix B, refers to interest rate, currency or
stock or bond index futures contracts, currency forward contracts and currency
swaps, the purchase and sale (or writing) of exchange listed and
over-the-counter ('OTC') put and call options on debt and equity securities,
currencies, interest rate, currency or stock index futures and fixed-income and
stock indices and other financial instruments, entering into various interest
rate transactions such as swaps, caps, floors, collars, entering into equity
swaps, caps, floors or trading in other similar types of instruments.
 
A Fund's ability to pursue certain of these strategies may be limited by the
Commodity Exchange Act, as amended, applicable regulations of the Commodity
Futures Trading Commission ('CFTC') thereunder and the federal income tax
requirements applicable to regulated investment companies which are not
operated as commodity pools.
 
GENERAL CHARACTERISTICS OF OPTIONS
 
Put options and call options typically have structural characteristics and
operational mechanics regardless of the underlying instrument on which they are
purchased or sold. Thus, the following general discussion relates to each of
the particular types of options discussed in greater detail below. In addition,
many Derivatives involving options require segregation of Fund assets in
special accounts, as described below under 'Use of Segregated and Other Special
Accounts.'
 
A put option gives the purchaser of the option, upon payment of a premium, the
right to sell, and the writer of the obligation to buy, the underlying
security, index, currency or other instrument at the exercise price. A Fund's
purchase of a put option on a security, for example, might be designed to
protect its holdings in the underlying instrument (or, in some cases, a similar
instrument) against a substantial decline in the market value of such
instrument by giving the Fund the right to sell the instrument at the option
exercised price. A call option, upon payment of a premium, gives the purchaser
of the option the right to buy, and the seller the obligation to sell, the
underlying instrument at the exercise price. A Fund's purchase of a call option
on a security, financial futures contract, index, currency or other instrument
might be intended to protect the Fund against an increase in the price of the
underlying instrument that it intends to purchase in the future by fixing the
price at which it may purchase the instrument. An 'American' style put or call
option may be exercised at any time during the option period, whereas a
'European' style put or call option may be exercised only upon expiration or
during a fixed period prior to expiration. Exchange listed options are issued
by a regulated intermediary such as the Options Clearing Corporation ('OCC'),
which guarantees the performance of the obligations of the parties to the
options. The discussion below uses the OCC as an example, but is also
applicable to other similar financial intermediaries.
 
OCC-issued and exchange-listed options, with certain exceptions, generally
settle by physical delivery of the underlying security or currency, although in
the future, cash settlement may become available. Index options are cash
settled for the net amount, if any, by which the option is 'in-the-money' (that
is, the amount by which the value of the underlying instrument exceeds, in the
case of a call option, or is less than, in the case of a put option, the
exercise price of the option) at the time the option is exercised. Frequently,
rather than taking or making delivery of the underlying instrument through the
 
                                                                        Page B-1
 
<PAGE>
<PAGE>
process of exercising the option, listed options are closed by entering into
offsetting purchase or sale transactions that do not result in ownership of the
new option.
 
A Fund's ability to close out its position as a purchaser or seller of an
OCC-issued or exchange-listed put or call option is dependent, in part, upon
the liquidity of the particular option market. Among the possible reasons for
the absence of a liquid option market on an exchange are: (1) insufficient
trading interest in certain options, (2) restrictions on transactions imposed
by an exchange, (3) trading halts, suspensions or other restrictions imposed
with respect to particular classes or series of options or underlying
securities, including reaching daily price limits, (4) interruption of the
normal operations of the OCC or an exchange, (5) inadequacy of the facilities
of an exchange or the OCC to handle current trading volume or (6) a decision by
one or more exchanges to discontinue the trading of options (or a particular
class or series of options), in which event the relevant market for that option
on that exchange would cease to exist, although any such outstanding options on
that exchange would continue to be exercisable in accordance with their terms.
 
The hours of trading for listed options may coincide with the hours during
which the underlying financial instruments are traded. To the extent that the
option markets close before the markets for the underlying financial
instruments, significant price and rate movements can take place in the
underlying markets that would not be reflected in the corresponding option
markets.
 
Over-the-counter ('OTC') options are purchased from or sold to securities
dealers, financial institutions or other parties (collectively referred to as
'Counterparties' and individually referred to as a 'Counterparty') through a
direct bilateral agreement with the Counterparty. In contrast to exchange-
listed options, which generally have standardized terms and performance
mechanics, all the terms of an OTC option, including such terms as method of
settlement, term, exercise price, premium guaranties and security, are
determined by negotiation of the parties. It is anticipated that any Portfolio
authorized to use OTC options will generally only enter into OTC options that
have cash settlement provisions, although it will not be required to do so.
 
Unless the parties provide for it, no central clearing or guaranty function is
involved in an OTC option. As a result, if a Counterparty fails to make or take
delivery of the security, currency or other instrument underlying an OTC option
it has entered into with the Fund or fails to make a cash settlement payment
due in accordance with the terms of that option, the Fund will lose any premium
it paid for the option as well as any anticipated benefit of the transaction.
Thus, the investment manager must assess the creditworthiness of each such
Counterparty or any guarantor or credit enhancement of the Counterparty's
credit to determine the likelihood that the terms of the OTC option will be
met. A Fund will enter into OTC option transactions only with U.S. government
securities dealers recognized by the Federal Reserve Bank of New York as
'primary dealers,' or broker-dealers, domestic or foreign banks, or other
financial institutions that the investment manager deems to be creditworthy. In
the absence of a change in the current position of the staff of the SEC, OTC
options purchased by a Fund and the amount of a Fund's obligation pursuant to
an OTC option sold by the Fund (the cost of the sell-back plus the in-the-money
amount, if any) or the value of the assets held to cover such options will be
deemed illiquid.
 
If a Fund sells a call option, the premium that it receives may serve as a
partial hedge, to the extent of the option premium, against a decrease in the
value of the underlying securities or instruments held by the Fund or will
increase the Fund's income. Similarly, the sale of put options can also provide
gains for a Fund.
 
A Fund may purchase and sell call options on securities that are traded on U.S.
and foreign securities exchanges and in the OTC markets, and on securities
indices, currencies and futures contracts. All calls sold by a Fund must be
'covered' (that is, the Fund must own the securities or futures contract
subject to the call), or must otherwise meet the asset segregation requirements
described below for so long as the call is outstanding. Even though the Fund
will receive the option premium to help protect
 
Page B-2
 
<PAGE>
<PAGE>
it or against loss, a call sold by a Fund will expose the Fund during the term
of the option to possible loss of opportunity to realize appreciation in the
market price of the underlying security or instrument and may require the Fund
to hold a security or instrument that it might otherwise have sold.
 
A Fund reserves the right to purchase or sell options on instruments and
indices, (whether or not it holds the securities in its portfolio) and on
securities indices, currencies and futures contracts. In selling put options, a
Fund faces the risk that it may be required to buy the underlying security at a
disadvantageous price above the market price.
 
A Fund may purchase and sell put options on securities (whether or not it holds
the securities in its portfolio) and on securities indices, currencies and
futures contracts. In selling put options, a Fund faces the risk that it may be
required to buy the underlying security at a disadvantageous price above the
market price.
 
GENERAL CHARACTERISTICS OF FUTURES CONTRACTS AND OPTIONS ON FUTURES CONTRACTS
 
A Fund may trade financial futures contracts or purchase or sell put and call
options on those contracts as a hedge against anticipated interest rate
currency or market changes, and for risk management purposes or a Fund may seek
to increase its income or gain. Futures contracts are generally bought and sold
on the commodities exchange on which they are listed with payment of initial
and variation margin as described below. The sale of a futures contract creates
a firm obligation by the Fund, as seller, to deliver to the buyer the specific
type of financial instrument called for in the contract at a specific future
time for a specified price (or, with respect to certain instruments, the net
cash amount). Options on futures contracts are similar to options on securities
except that an option on a futures contract gives the purchaser the right, in
return for the premium paid, to assume a position in a futures contract and
obligates the seller to deliver that position.
 
A Fund's use of financial futures contracts and options thereon will in all
cases be consistent with applicable regulatory requirements and in particular
the rules and regulations of the CFTC. Maintaining a futures contract or
selling an option on a futures contract will typically require the Fund to
deposit with a financial intermediary, as security for its obligations, an
amount of cash or other specified asset ('initial margin') that initially is
from 1% to 10% of the face amount of the contract (but may be higher in some
circumstances). Additional cash or assets ('variation margin') may be required
to be deposited thereafter daily as the mark-to market value of the futures
contract fluctuates. The purchase of an option on a financial futures contract
involves payment of a premium for the option without any further obligation on
the part of the Fund. If the Fund exercises an option on a futures contract it
will be obligated to post initial margin (and potentially variation margin) for
the resulting futures position just as it would for any futures position.
Futures contracts and options thereon are generally settled by entering into an
offsetting transaction, but no assurance can be given that a position can be
offset prior to settlement or that delivery will occur.
 
A Fund will not enter into a futures contract or option thereon if, immediately
thereafter, the sum of the amount of its initial margin and premiums required
to maintain permissible non-bona fide hedging positions in futures contracts
and options thereon would exceed 5% of the liquidation value of the Fund's
portfolio, after taking into account unrealized profits and losses on existing
contracts; however in the case of an option that is in-the-money at the time of
the purchase, the in-the-money amount may be excluded in calculating the 5%
limitation. The value of all futures contracts sold by the Fund (adjusted for
the historical volatility relationship between the Fund and the contracts) will
not exceed the total market value of the Fund's securities. The segregation
requirements with respect to futures contracts and options thereon are
described below under 'Use of Segregated and Other Special Accounts.'
 
                                                                        Page B-3
 
<PAGE>
<PAGE>
OPTIONS ON SECURITIES INDICES AND OTHER FINANCIAL INDICES
 
A Fund may purchase and sell call and put options on securities indices and
other financial indices. In doing so, the Fund can achieve many of the same
objectives it would achieve through the sale or purchase of options on
individual securities or other instruments. Options on securities indices and
other financial indices are similar to options on a security or other
instrument except that, rather than settling by physical delivery of the
underlying instrument, options on indices settle by cash settlement; that is,
an option on an index gives the holder the right to receive, upon exercise of
the option, an amount of cash if the closing level of the index upon which the
option is based exceeds, in the case of a call, or is less than, in the case of
a put, the exercise price of the option (except if in the case of an OTC
option, physical delivery is specified). This amount of cash is equal to the
excess of the closing price of the index over the exercise price of the option,
which also may be multiplied by a formula value. The seller of the option is
obligated, in return for the premium received, to make delivery of this amount.
The gain or loss on an option on an index depends on price movements in the
instruments comprising the market, market segment, industry or other composite
on which the underlying index is based, rather than price movements in
individual securities, as is the case with respect to options on securities.
 
CURRENCY TRANSACTIONS
 
A Fund may engage in currency transactions with Counterparties to hedge the
value of portfolio securities denominated in particular currencies against
fluctuations in relative value or to generate income or gain. Currency
transactions include currency forward contracts, exchange-listed currency
futures contracts and options thereon, exchange-listed and OTC options on
currencies, and currency swaps. A forward currency contract involves a
privately negotiated obligation to purchase or sell (with delivery generally
required) a specific currency at a future date, which may be any fixed number of
days from the date of the contract agreed upon by the parties, at a price set
at the time of the contract. A currency swap is an agreement to exchange cash
flows based on the notional difference among two or more currencies and
operates similarly to an interest rate swap, which is described below under
'Swaps, Caps, Floors and Collars.' A Fund may enter into currency transactions
only with Counterparties that the investment manager deems to be creditworthy.
 
Transaction hedging is entering into a currency transaction with respect to
specific assets or liabilities of the Fund, which will generally arise in
connection with the purchase or sale of the Fund's portfolio securities or the
receipt of income from them. Position hedging is entering into a currency
transaction with respect to portfolio securities positions denominated or
generally quoted in that currency. A Fund will not enter into a transaction to
hedge currency exposure to an extent greater, after netting all transactions
intended wholly or partially to offset other transactions, than the aggregate
market value (at the time of entering into the transaction) of the securities
held by the Fund that are denominated or generally quoted in or currently
convertible into the currency, other than with respect to proxy hedging as
described below.
 
A Fund may cross-hedge currencies by entering into transactions to purchase or
sell one or more currencies that are expected to increase or decline in value
relative to other currencies to which the Fund has or in which the Fund expects
to have exposure. To reduce the effect of currency fluctuations on the value of
existing or anticipated holdings of its securities, a Fund may also engage in
proxy hedging. Proxy hedging is often used when the currency to which the
Fund's holdings is exposed is difficult to hedge generally or difficult to
hedge against the dollar. Proxy hedging entails entering into a forward
contract to sell a currency, the changes in the value of which are generally
considered to be linked to a currency or currencies in which some or all of the
Fund's securities are or are expected to be denominated, and to buy dollars.
The amount of the contract would not exceed the market value of the Fund's
securities denominated in linked currencies.
 
Page B-4
 
<PAGE>
<PAGE>
Currency transactions are subject to risks different from other portfolio
transactions, as discussed below under 'Risk Factors.' If a Fund enters into a
currency hedging transaction, the Fund will comply with the asset segregation
requirements described below under 'Use of Segregated and Other Special
Accounts.'
 
COMBINED TRANSACTIONS
 
A Fund may enter into multiple transactions, including multiple options
transactions, multiple futures transactions, multiple currency transactions
(including forward currency contracts), multiple interest rate transactions and
any combination of futures, options, currency and interest rate transactions,
instead of a single Derivative, as part of a single or combined strategy when,
in the judgment of the investment manager, it is in the best interests of the
Fund to do so. A combined transaction will usually contain elements of risk
that are present in each of its component transactions. Although combined
transactions will normally be entered into by a Fund based on the investment
manager's judgment that the combined strategies will reduce risk or otherwise
more effectively achieve the desired portfolio management goal, it is possible
that the combination will instead increase the risks or hinder achievement of
the Fund management objective.
 
SWAPS, CAPS, FLOORS AND COLLARS
 
A Fund may enter into interest rate, currency and equity swap, the purchase or
sale of related caps, floors and collars and other similar arrangements. A Fund
will enter into these transactions primarily to seek to preserve a return or
spread on a particular investment or portion of its portfolio, to protect
against currency fluctuations, as a duration management technique, to protect
against any increase in the price of securities the Fund anticipates purchasing
or selling at a later date or to generate income or gain. Interest rate swaps
involve the exchange by the Fund with another party of their respective
commitments to pay or receive interest (for example, an exchange of floating
rate payments for fixed rate payments with respect to a notional amount of
principal). An equity swap is an agreement to exchange cash flows on a national
principal amount based on changes in the values of the reference index. A
currency swap is an agreement to exchange cash flows on a notional amount based
on changes in the values of the currency exchange rates. The purchase of a cap
entitles the purchaser to receive payments on a notional principal amount from
the party selling the cap to the extent that a specified interest rate,
currency exchange rate or index exceeds a predetermined rate or amount. The
purchase of a floor entitles the purchaser to receive payments on a notional
principal amount from the party selling the floor to the extent that a
specified interest rate currency exchange rate or index falls below a
predetermined rate or amount. A collar is a combination of a cap and a floor
that preserves a certain return with a predetermined range of rates or values.
 
A Fund will usually enter into swaps on a net basis, that is, the two payment
streams are netted out in a cash settlement on the payment date or dates
specified in the instrument with the Fund receiving or paying, as the case may
be, only the net amount of the two payments.
 
Inasmuch as these swaps, caps, floors, collars and other similar types of
instruments are entered into for good faith hedging or other non-speculative
purposes, they do not constitute senior securities under the 1940 Act, and,
thus, will not be treated as being subject to the Fund's applicable borrowing
restrictions. A Fund will not enter into any swap, cap, floor, collar or other
similar type of transaction unless the investment manager deems the
Counterparty to be creditworthy. If a Counterparty defaults, the Fund may have
contractual remedies pursuant to the agreements related to the transaction. The
swap market has grown substantially in recent years with a large number of
banks and investment banking firms acting both as principals and as agents
utilizing standardized swap documentation. As a result, the swap market has
become relatively liquid. Caps, floors and collars are more recent innovations
for which standardized documentation has not yet been fully developed and, for
that reason, they are less liquid than swaps.
 
                                                                        Page B-5
 
<PAGE>
<PAGE>
The liquidity of swap agreements will be determined by the investment manager
based on various factors, including (1) the frequency of trades and quotations,
(2) the number of dealers and prospective purchasers in the marketplace, (3)
dealer undertakings to make a market, (4) the nature of the security (including
any demand or tender features), and (5) the nature of the marketplace for
trades (including the ability to assign or offset the Fund's rights and
obligations relating to the investment). Such determination will govern whether
a swap will be deemed within the 10% restriction on investment in securities
that are not readily marketable.
 
A Fund will maintain cash and appropriate liquid assets (i.e., high grade debt
securities) in a segregated custodial account to cover its current obligations
under swap agreements. If a Fund enters into a swap agreement on a net basis,
it will segregate assets with a daily value at least equal to the excess, if
any, of the Fund's accrued obligations under the swap agreement over the
accrued amount the Fund is entitled to receive under the agreement. If a Fund
enters into a swap agreement on other than a net basis, it will segregate
assets with a value equal to the full amount of the Fund's accrued obligations
under the agreement. See 'Use of Segregated and Other Special Accounts' below.
 
RISK FACTORS
 
Derivatives have special risks associated with them, including possible default
by the Counterparty to the transaction, illiquidity and, to the extent the
investment manager's view as to certain market movements is incorrect, the risk
that the use of the Derivatives could result in losses greater than if they had
not been used. Use of put and call options could result in losses to a Fund,
force the sale or purchase of portfolio securities at inopportune times or for
prices higher than (in the case of put options) or lower than (in the case of
call options) current market values, or cause a Fund to hold a security it
might otherwise sell.
 
The use of futures and options transactions entails certain special risks. In
particular, the variable degree of correlation between price movements of
futures contracts and price movements in the related securities position of a
Fund could create the possibility that losses on the hedging instrument are
greater than gain in the value of the Fund's position. In addition, futures and
options markets could be illiquid in some circumstances and certain
over-the-counter options could have no markets. As a result, in certain
markets, a Fund might not be able to close out a transaction without incurring
substantial losses. Although a Fund's use of futures and options transactions
for hedging should tend to minimize the risk of loss due to a decline in the
value of the hedged position, at the same time it will tend to limit any
potential gain to the Fund that might result from an increase in value of the
position. There is also the risk of loss by a Fund of margin deposits in the
event of bankruptcy of a broker with whom the Fund has an open position in a
futures contract or option thereon. Finally, the daily variation margin
requirements for futures contracts create a greater ongoing potential financial
risk than would purchases of options, in which case the exposure is limited to
the cost of the initial premium. However, because option premiums paid by a
Fund are small in relation to the market value of the investments underlying
the options, buying options can result in large amounts of leverage. The
leverage offered by trading in options could cause a Fund's net asset value to
be subject to more frequent and wider fluctuation than would be the case if the
Fund did not invest in options.
 
As is the case with futures and options strategies, the effective use of swaps
and related transactions by a Fund may depend, among other things, on a Fund's
ability to terminate the transactions at times when the investment manager
deems it desirable to do so. To the extent a Fund does not, or cannot,
terminate such a transaction in a timely manner, a Fund may suffer a loss in
excess of any amounts that it may have received, or expected to receive, as a
result of the investment manager entering into the transaction.
 
Currency hedging involves some of the same risks and considerations as other
transactions with similar instruments. Currency transactions can result in
losses to a Fund if the currency being hedged fluctuates in value to a degree
or in a direction that is not anticipated. Further, the risk exists that
 
Page B-6
 
<PAGE>
<PAGE>
the perceived linkage between various currencies may not be present or may not
be present during the particular time that the Fund is engaging in proxy
hedging. Currency transactions are also subject to risks different from those
of other portfolio transactions. Because currency control is of great
importance to the issuing governments and influences economic planning and
policy, purchases and sales of currency and related instruments can be
adversely affected by government exchange controls, limitations or restrictions
on repatriation of currency, and manipulations or exchange restrictions imposed
by governments. These forms of governmental actions can result in losses to a
Fund if it is unable to deliver or receive currency or monies in settlement of
obligations and could also cause hedges it has entered into to be rendered
useless, resulting in full currency exposure as well as incurring transaction
costs. Buyers and sellers of currency futures contracts are subject to the same
risks that apply to the use of futures contracts generally. Further, settlement
of a currency futures contract for the purchase of most currencies must occur
at a bank based in the issuing nation. Trading options on currency futures
contracts is relatively new, and the ability to establish and close out
positions on these options is subject to the maintenance of a liquid market
that may not always be available. Currency exchange rates may fluctuate based
on factors extrinsic to that country's economy.
 
Losses resulting from the use of Derivatives will reduce a Fund's net asset
value, and possibly income, and the losses can be greater than if Derivatives
had not been used.
 
RISK OF DERIVATIVES OUTSIDE THE UNITED STATES
 
When conducted outside the United States, Derivatives may not be regulated as
rigorously as in the United States, may not involve a clearing mechanism and
related guarantees, and will be subject to the risk of governmental actions
affecting trading in, or the prices of, foreign securities, currencies and
other instruments. In addition, the price of any foreign futures or foreign
options contract and, therefore, the potential profit and loss thereon, may be
affected by any variance in the foreign exchange rate between the time an order
is placed and the time it is liquidated, offset or exercised. The value of
positions taken as part of non-U.S. Derivatives also could be adversely
affected by: (1) other complex foreign political, legal and economic factors,
(2) lesser availability of dates on which to make trading decisions than in the
United States, (3) delays in the Fund's ability to act upon economic events
occurring in foreign markets during nonbusiness hours in the United States, (4)
the imposition of different exercise and settlement terms and procedures and
margin requirements than in the United States and (5) lower trading volume and
liquidity.
 
USE OF SEGREGATED AND OTHER SPECIAL ACCOUNTS
 
Use of many Derivatives by a Fund will require, among other things, that the
Fund segregate cash, liquid high grade debt obligations or other assets with
its custodian, or a designated sub-custodian, to the extent the Fund's
obligations are not otherwise 'covered' through ownership of the underlying
security, financial instrument or currency. In general, either the full amount
of any obligation by a Fund to pay or deliver securities or assets must be
covered at all times by the securities, instruments or currency required to be
delivered, or, subject to any regulatory restrictions, an amount of cash or
liquid high grade debt obligations at least equal to the current amount of the
obligation must be segregated with the custodian or sub-custodian. The
segregated assets cannot be sold or transferred unless equivalent assets are
substituted in their place or it is no longer necessary to segregate them. A
call option on securities written by a Fund, for example, will require the Fund
to hold the securities subject to the call (or securities convertible into the
needed securities without additional consideration) or to segregate liquid high
grade debt obligations sufficient to purchase and deliver the securities if the
call is exercised. A call option sold by a Fund on an index will require the
Fund to own portfolio securities that correlate with the index or to segregate
liquid high grade debt obligations equal to the excess of the index value over
the exercise price on a current basis. A put option on securities written by a
Fund will require the Fund to segregate liquid high grade debt obligations
equal to the exercise price. Except when a Fund enters into a forward contract
in connection with the purchase or sale of a
 
                                                                        Page B-7
 
<PAGE>
<PAGE>
security denominated in a foreign currency or for other non-speculative
purposes, which requires no segregation, a currency contract that obligates the
fund to buy or sell a foreign currency will generally require the Fund to hold
an amount of that currency or liquid securities denominated in that currency
equal to the Fund's obligations or to segregate liquid high grade debt
obligations equal to the amount of the Fund's obligations.
 
OTC options entered into by a Fund, including those on securities, currency,
financial instruments or indices, and OCC-issued and exchange-listed index
options will generally provide for cash settlement, although the Fund will not
be required to do so. As a result, when a Fund sells these instruments it will
segregate an amount of assets equal to its obligations under the Options.
OCC-issued and exchange-listed options sold by a Fund other than those
described above generally settle with physical delivery, and the Fund will
segregate an amount of assets equal to the full value of the option. OTC
options settling with physical delivery or with an election of either physical
delivery or cash settlement will be treated the same as other options settling
with physical delivery.
 
In the case of a futures contract or an option on a futures contract, a Fund
must deposit initial margin and, in some instances, daily variation margin in
addition to segregating assets sufficient to meet its obligations to purchase
or provide securities or currencies, or to pay the amount owed at the
expiration of an index-based futures contract. These assets may consist of
cash, cash equivalents, liquid debt or equity securities or other acceptable
assets. A Fund will accrue the net amount of the excess, if any, of its
obligations relating to swaps over its entitlements with respect to each swap
on a daily basis and will segregate with its custodian, or designated
sub-custodian, an amount of cash or liquid high grade debt obligations having
an aggregate value equal to at least the accrued excess. Caps, floors and
collars require segregation of assets with a value equal to the Fund's net
obligation, if any.
 
Derivatives may be covered by means other than those described above when
consistent with applicable regulatory policies. A Fund may also enter into
offsetting transactions so that its combined position, coupled with any
segregated assets, equals its net outstanding obligation in related
Derivatives. A Fund could purchase a put option, for example, if the strike
price of that option is the same or higher than the strike price of a put
option sold by the Fund. Moreover, instead of segregating assets if it holds a
futures contract or forward contract, a Fund could purchase a put option on the
same futures contract or forward contract with a strike price as high or higher
than the price of the contract held. Other Derivatives may also be offset in
combinations. If the offsetting transaction terminates at the time of or after
the primary transaction, no segregation is required, but if it terminates prior
to that time, assets equal to any remaining obligation would need to be
segregated.
 
Page B-8


<PAGE>
<PAGE>
FOR CUSTOMER SERVICE
(800) 446-1013
 
FOR BROKER/DEALER INQUIRIES
(800) SALOMON
(800) 725-6666
Dial 11 for a representative
 
DISTRIBUTOR
Salomon Brothers Inc
Seven World Trade Center
New York, New York 10048
 
INVESTMENT MANAGER
Salomon Brothers Asset
 Management Inc
Seven World Trade Center
New York, New York 10048
 
CUSTODIAN, TRANSFER AGENT AND
DIVIDEND DISBURSING AGENT
Investors Bank & Trust Company
89 South Street
Boston, Massachusetts 02111
 
INDEPENDENT ACCOUNTANTS
Price Waterhouse LLP
1177 Avenue of the Americas
New York, New York 10036
 
LEGAL COUNSEL
Simpson Thacher & Bartlett
425 Lexington Avenue
New York, New York 10017
 
NO  DEALER, SALESMAN OR OTHER PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION
OR TO MAKE ANY REPRESENTATIONS, OTHER  THAN THOSE CONTAINED IN THIS  PROSPECTUS,
IN  CONNECTION WITH  THE OFFER  CONTAINED IN THIS  PROSPECTUS, AND,  IF GIVEN OR
MADE, SUCH  OTHER INFORMATION  OR REPRESENTATIONS  MUST NOT  BE RELIED  UPON  AS
HAVING  BEEN AUTHORIZED  BY A FUND,  THE DISTRIBUTOR OR  THE INVESTMENT MANAGER.
THIS PROSPECTUS  DOES NOT  CONSTITUTE AN  OFFERING IN  ANY STATE  IN WHICH  SUCH
OFFERING MAY NOT LAWFULLY BE MADE.
 
             -----------------------------------------------
                       Salomon Brothers Asset Management
                 -----------------------------------------------



<PAGE>
<PAGE>
                SALOMON BROTHERS INSTITUTIONAL INVESTMENT SERIES
                              7 WORLD TRADE CENTER
                            NEW YORK, NEW YORK 10048
                                 (800) SALOMON
                                 (800) 725-6666
 
                      STATEMENT OF ADDITIONAL INFORMATION
 
     Salomon  Brothers  Institutional  Investment  Series  consists  of  Salomon
Brothers Institutional  Money Market  Fund (the  'Money Market  Fund'),  Salomon
Brothers  Institutional  High  Yield Bond  Fund  (the 'High  Yield  Bond Fund'),
Salomon Brothers Institutional Emerging Markets Debt Fund (the 'Emerging Markets
Debt Fund')  and Salomon  Brothers  Institutional Asia  Growth Fund  (the  'Asia
Growth Fund') (each, a 'Fund' and collectively, the 'Funds'). Each of the Funds,
except  the  Money Market  Fund, is  a no-load  investment portfolio  of Salomon
Brothers  Institutional  Series  Funds  Inc,  an  open-end  investment   company
incorporated in Maryland on January 19, 1996 ('Institutional Series Funds'). The
Money  Market Fund is a no-load  investment portfolio of Salomon Brothers Series
Funds Inc, an open-end investment company incorporated in Maryland on April  17,
1990  ('Series  Funds').  Institutional  Series  Funds  and  Series  Funds  are,
individually the 'Company,' and collectively, the 'Companies.'
 
     This Statement of Additional Information ('SAI') is not a prospectus and is
only authorized  for distribution  when preceded  or accompanied  by the  Funds'
current Prospectus dated April 29, 1997 (the 'Prospectus'). This SAI supplements
and  should be read in  conjunction with the Prospectus, a  copy of which may be
obtained without charge by writing the Funds  at the address, or by calling  the
toll-free telephone number, listed above.
 
April 29, 1997


<PAGE>
<PAGE>
                               TABLE OF CONTENTS
 
<TABLE>
<S>                                                                                                <C>
Additional Information on Portfolio Instruments and Investment Policies.........................     3
Investment Limitations..........................................................................    15
Additional Purchase and Redemption Information..................................................    17
Portfolio Transactions..........................................................................    18
Management......................................................................................    19
Investment Manager..............................................................................    24
Net Asset Value.................................................................................    26
Additional Information Concerning Taxes.........................................................    28
Performance Data................................................................................    31
Capital Stock...................................................................................    33
Custodian and Transfer Agent....................................................................    33
Independent Accountants.........................................................................    33
Counsel.........................................................................................    33
Financial Statements............................................................................    34
</TABLE>
 
                                       2


<PAGE>
<PAGE>
                ADDITIONAL INFORMATION ON PORTFOLIO INSTRUMENTS
                            AND INVESTMENT POLICIES
 
     The   discussion  below  supplements  the  information  set  forth  in  the
Prospectus under 'Investment Objective and Policies' and 'Additional  Investment
Activities and Risk Factors.' References herein to the investment manager means,
with respect to the Money Market Fund, the High Yield Bond Fund and the Emerging
Markets  Debt  Fund, Salomon  Brothers Asset  Management  Inc ('SBAM')  and with
respect to the Asia Growth Fund, Salomon Brothers Asset Management Asia  Pacific
Limited ('SBAM AP').
 
FOREIGN SECURITIES
 
     As  discussed in  the Prospectus,  investing in  the securities  of foreign
issuers generally, and particularly in emerging market issuers, involves special
considerations which are not typically  associated with investing in  securities
of  U.S. issuers. The following  discussion supplements the discussion contained
in  the   Prospectus   under   'Additional  Investment   Activities   and   Risk
Factors  -- Foreign  Securities' and  ' -- High  Yield Securities  -- High Yield
Foreign Sovereign Debt Securities.' See also ' -- Brady Bonds' below.
 
     Certain  of  the  risks  associated  with  international  investments   and
investing  in smaller capital markets are heightened for investments in emerging
market countries.  For  example,  some  of the  currencies  of  emerging  market
countries  have experienced devaluations relative to  the U.S. dollar, and major
adjustments have been made periodically  in certain of such currencies.  Certain
of such countries face serious exchange constraints. In addition, governments of
many   emerging  market  countries  have  exercised  and  continue  to  exercise
substantial influence over many aspects of the private sector. In certain cases,
the government owns  or controls many  companies, including the  largest in  the
country.  Accordingly, government actions in the future could have a significant
effect on economic conditions in developing countries which could affect private
sector companies and a Fund, as well as the value of securities in the Fund.
 
     Certain markets are in  only the earliest stages  of development. There  is
also a high concentration of market capitalization and trading volume in a small
number of issuers representing a limited number of industries, as well as a high
concentration  of investors and  financial intermediaries. Many  of such markets
also may be affected by developments with respect to more established markets in
the region. Brokers in emerging market  countries typically are fewer in  number
and  less capitalized than brokers in the United States. These factors, combined
with the U.S. regulatory requirements for open-end investment companies and  the
restrictions  on  foreign  investment, result  in  potentially  fewer investment
opportunities for  a Fund  and may  have  an adverse  impact on  the  investment
performance of a Fund.
 
     There   generally  is  less  governmental  supervision  and  regulation  of
exchanges, brokers and issuers in foreign countries than there is in the  United
States. For example, there may be no comparable provisions under certain foreign
laws  to insider  trading and similar  investor protection  securities laws that
apply with respect to securities transactions consummated in the United  States.
Further, brokerage commissions and other transaction costs on foreign securities
exchanges generally are higher than in the United States.
 
     With  respect to investments in  certain emerging market countries, archaic
legal systems may  have an  adverse impact  on a  Fund. For  example, while  the
potential  liability of a shareholder in a U.S. corporation with respect to acts
of the  corporation is  generally limited  to the  amount of  the  shareholder's
investment,  the notion of  limited liability is less  clear in certain emerging
market  countries.  Similarly,  the  rights  of  investors  in  emerging  market
companies may be more limited than those of shareholders of U.S. corporations.
 
     In  some countries, banks or other  financial institutions may constitute a
substantial number of the leading companies or companies with the most  actively
traded  securities. The  Investment Company Act  of 1940, as  amended (the '1940
Act') limits a  Fund's ability to  invest in  any equity security  of an  issuer
which,  in its most  recent fiscal year,  derived more than  15% of its revenues
from 'securities related activities,' as defined by the rules thereunder.  These
provisions  may also restrict a Fund's  investments in certain foreign banks and
other financial institutions.
 
                                       3
 
<PAGE>
<PAGE>
     The manner in which  foreign investors may invest  in companies in  certain
emerging  market countries, as well as limitations on such investments, also may
have an adverse impact on the operations of a Fund. For example, the Fund may be
required in certain of such countries to invest initially through a local broker
or other entity and then have the shares purchased re-registered in the name  of
the Fund. Re-registration may in some instances not be able to occur on a timely
basis,  resulting in a delay during which the  Fund may be denied certain of its
rights as an investor.
 
     Foreign markets have different clearance and settlement procedures, and  in
certain  markets there have been times when settlements have failed to keep pace
with the volume of securities transactions, making it difficult to conduct  such
transactions. Further, satisfactory custodial services for investment securities
may not be available in some countries having smaller, emerging capital markets,
which may result in a Fund incurring additional costs and delays in transporting
and  custodying such securities outside such  countries. Delays in settlement or
other problems could result in periods when assets of a Fund are uninvested  and
no  return is earned thereon. The inability  of a Fund to make intended security
purchases due to settlement  problems or the  risk of intermediary  counterparty
failures  could cause  a Fund to  miss attractive  investment opportunities. The
inability to dispose of  a portfolio security due  to settlement problems  could
result  either in losses  to a Fund due  to subsequent declines  in the value of
such portfolio security or, if the Fund has entered into a contract to sell  the
security, could result in possible liability to the purchaser.
 
     Rules  adopted under  the 1940  Act permit a  Fund to  maintain its foreign
securities and  cash in  the  custody of  certain  eligible non-U.S.  banks  and
securities  depositories. Certain banks in foreign countries may not be eligible
sub-custodians for  a  Fund, in  which  event the  Fund  may be  precluded  from
purchasing  securities in certain foreign countries  in which it otherwise would
invest or which may result in  the Fund's incurring additional costs and  delays
in  providing transportation and custody services for such securities outside of
such countries. A Fund may encounter difficulties in effecting on a timely basis
portfolio transactions with respect  to any securities  of issuers held  outside
their  countries. Other  banks that are  eligible foreign  sub-custodians may be
recently  organized  or  otherwise  lack  extensive  operating  experience.   In
addition, in certain countries there may be legal restrictions or limitations on
the   ability  of  a  Fund  to  recover   assets  held  in  custody  by  foreign
sub-custodians in the event of the bankruptcy of the sub-custodian.
 
BANK OBLIGATIONS
 
     Banks are subject  to extensive  governmental regulations  which may  limit
both the amounts and types of loans and other financial commitments which may be
made and interest rates and fees which may be charged. The profitability of this
industry  is largely dependent  upon the availability and  cost of capital funds
for the purpose of  financing lending operations  under prevailing money  market
conditions.  Also, general  economic conditions  play an  important part  in the
operations of this industry and exposure to credit losses arising from  possible
financial  difficulties of borrowers  might affect a bank's  ability to meet its
obligations.
 
     Investors should  also be  aware that  securities issued  or guaranteed  by
foreign  banks,  foreign  branches of  U.S.  banks, and  foreign  government and
private issuers may involve  investment risks in addition  to those relating  to
domestic   obligations.   See   'Additional  Investment   Activities   and  Risk
Factors -- Foreign Securities' in the Prospectus and
' -- Foreign Securities' above.
 
     As stated in the  Prospectus, bank obligations that  may be purchased by  a
Fund  include  certificates  of  deposit, banker's  acceptances  and  fixed time
deposits. A certificate of deposit is a short-term negotiable certificate issued
by a  commercial  bank  against  funds  deposited in  the  bank  and  is  either
interest-bearing  or purchased on  a discount basis. A  bankers' acceptance is a
short-term draft drawn on a commercial bank by a borrower, usually in connection
with an international commercial transaction. The borrower is liable for payment
as is the bank, which  unconditionally guarantees to pay  the draft at its  face
amount  on the maturity date. Fixed time deposits are obligations of branches of
U.S. banks or foreign banks which are payable at a stated maturity date and bear
a fixed rate of interest. Although fixed
 
                                       4
 
<PAGE>
<PAGE>
time deposits do not have a market, there are no contractual restrictions on the
right to transfer a beneficial interest in the deposit to a third party.
 
     Bank obligations may be  general obligations of the  parent bank or may  be
limited  to the issuing  branch by the  terms of the  specific obligations or by
government regulation.
 
FLOATING AND VARIABLE RATE INSTRUMENTS
 
     As stated  in the  Prospectus, certain  of the  floating or  variable  rate
obligations  that may  be purchased by  a Fund  may carry a  demand feature that
would permit the holder to tender them  back to the issuer of the instrument  or
to  a third party at par value prior to maturity. Some of the demand instruments
purchased by the Funds  are not traded  in a secondary  market and derive  their
liquidity  solely from the  ability of the  holder to demand  repayment from the
issuer or third party  providing credit support. If  a demand instrument is  not
traded in a secondary market, each Fund will nonetheless treat the instrument as
'readily  marketable' for  the purposes  of its  investment restriction limiting
investments in illiquid securities unless the demand feature has a notice period
of more than seven days; if the notice period is greater than seven days, such a
demand instrument will  be characterized  as 'not readily  marketable' for  such
purpose.
 
     A  Fund's right to  obtain payment at  par on a  demand instrument could be
affected by events occurring between the date such Fund elects to demand payment
and the date payment  is due that may  affect the ability of  the issuer of  the
instrument  or a third party providing credit  support to make payment when due,
except when such demand  instruments permit same  day settlement. To  facilitate
settlement,  these same day demand instruments may be held in book entry form at
a bank  other than  a  Fund's custodian  subject  to a  sub-custodian  agreement
approved by the Fund between that bank and the Fund's custodian.
 
ASSET-BACKED SECURITIES
 
     Asset-backed  securities are generally issued as pass through certificates,
which represent undivided fractional ownership interests in the underlying  pool
of  assets, or as debt instruments, which are  generally issued as the debt of a
special purpose entity organized  solely for the purpose  of owning such  assets
and  issuing such debt.  Asset-backed securities are  often backed by  a pool of
assets  representing  the  obligations  of   a  number  of  different   parties.
Asset-backed  securities frequently carry credit protection in the form of extra
collateral, subordinated certificates, cash reserve accounts, letters of  credit
or  other enhancements. For  example, payments of principal  and interest may be
guaranteed up to certain amounts  and for a certain time  period by a letter  of
credit  or other enhancement issued by a financial institution unaffiliated with
the entities issuing the  securities. Assets which, to  date, have been used  to
back  asset-backed securities include motor  vehicle installment sales contracts
or installment loans secured by  motor vehicles, and receivables from  revolving
credit (credit card) agreements.
 
     Asset-backed securities present certain risks which are, generally, related
to limited interests, if any, in related collateral. Credit card receivables are
generally  unsecured and the debtors are entitled  to the protection of a number
of state and federal consumer credit laws,  many of which give such debtors  the
right  to set off certain amounts owed on the credit cards, thereby reducing the
balance due.  Most issuers  of automobile  receivables permit  the servicers  to
retain  possession of the  underlying obligations. If the  servicer were to sell
these obligations to  another party, there  is a risk  that the purchaser  would
acquire  an interest superior to  that of the holders  of the related automobile
receivables. In addition, because of the large number of vehicles involved in  a
typical  issuance and technical  requirements under state  laws, the trustee for
the holders  of  the automobile  receivables  may  not have  a  proper  security
interest in all of the obligations backing such receivables. Therefore, there is
the  possibility  that recoveries  on repossessed  collateral  may not,  in some
cases, be available  to support  payments on  these securities.  Other types  of
asset-backed  securities  will  be  subject to  the  risks  associated  with the
underlying assets. If a letter of credit or other form of credit enhancement  is
exhausted  or otherwise unavailable, holders of asset-backed securities may also
experience delays in payments  or losses if the  full amounts due on  underlying
assets are
 
                                       5
 
<PAGE>
<PAGE>
not  realized. Because  asset-backed securities  are relatively  new, the market
experience in these securities  is limited and the  market's ability to  sustain
liquidity through all phases of the market cycle has not been tested.
 
LOANS OF PORTFOLIO SECURITIES
 
     Certain  Funds may lend portfolio securities to brokers or dealers or other
financial institutions. The procedure for the lending of securities will include
the following  features and  conditions.  The borrower  of the  securities  will
deposit cash, securities or other permissible forms of collateral (e.g., letters
of  credit) with the Fund in an amount equal  to a minimum of 100% of the market
value of  the securities  lent. The  Fund  will invest  any cash  collateral  in
short-term  debt securities and earn the  interest thereon. A negotiated portion
of the income so earned may be paid  to the borrower or the broker who  arranged
the loan. If the value of the collateral drops below the required minimum at any
time,  the borrower  may be  called upon to  post additional  collateral. If the
additional collateral is not  posted, the loan will  be immediately due and  the
Fund  may  use the  collateral  or its  own cash  to  replace the  securities by
purchase in the open  market charging any  loss to the  borrower. These will  be
'demand'  loans and  may be  terminated by  the Fund  at any  time. A  Fund will
receive any dividends  and interest paid  on the securities  lent and the  loans
will  be structured to assure that the Fund  will be able to exercise its voting
rights on the securities. Such loans will be authorized only to the extent  that
the  receipt  of income  from  such activity  would  not cause  any  adverse tax
consequences to a  Fund's shareholders  and only in  accordance with  applicable
rules  and  regulations.  The  borrowers  may  not  be  affiliated,  directly or
indirectly, with a Fund.
 
RULE 144A SECURITIES
 
     As  indicated  in  the  Prospectus,  certain  Funds  may  purchase  certain
restricted  securities ('Rule 144A  securities') for which  there is a secondary
market of qualified institutional buyers, as contemplated by Rule 144A under the
Securities Act  of 1933,  as amended  (the '1933  Act'). Rule  144A provides  an
exemption  from the registration requirements of the  1933 Act for the resale of
certain restricted securities to qualified institutional buyers.
 
     One effect of Rule  144A is that certain  restricted securities may now  be
liquid,  though  there  is no  assurance  that  a liquid  market  for  Rule 144A
securities will  develop  or  be  maintained.  In  promulgating  Rule  144A  the
Securities  and  Exchange  Commission  (the  'SEC')  stated  that  the  ultimate
responsibility for liquidity determinations is  that of an investment  company's
board  of directors.  However, the  SEC stated that  the board  may delegate the
day-to-day function of determining liquidity  to the fund's investment  adviser,
provided  that the board retains sufficient oversight. The Board of Directors of
Institutional Series Funds and Series Funds have adopted policies and procedures
for the purpose of determining whether  securities that are eligible for  resale
under  Rule 144A are liquid  or illiquid for purposes  of a Fund's limitation on
investment in illiquid  securities. Pursuant to  those policies and  procedures,
each  Company's Board of  Directors has delegated to  the investment manager the
determination as  to  whether  a  particular security  is  liquid  or  illiquid,
requiring  that consideration be given to,  among other things, the frequency of
trades and quotes for the  security, the number of  dealers willing to sell  the
security  and the number of potential  purchasers, dealer undertakings to make a
market in  the security,  the nature  of the  security and  the time  needed  to
dispose  of the security. Each Company's Board of Directors periodically reviews
Fund purchases and sales of Rule 144A securities.
 
     To the extent  that liquid Rule  144A securities that  a Fund holds  become
illiquid, due to the lack of sufficient qualified institutional buyers or market
or  other conditions,  the percentage  of a  Fund's assets  invested in illiquid
assets would increase. The investment manager monitors Fund investments in  Rule
144A  securities under the supervision of each Company's Board of Directors, and
will consider  appropriate measures  to  enable a  Fund to  maintain  sufficient
liquidity for operating purposes and to meet redemption requests.
 
                                       6
 
<PAGE>
<PAGE>
BRADY BONDS
 
     Brady  Bonds are  debt securities,  generally denominated  in U.S. dollars,
issued under the framework of  the Brady Plan. The  Brady Plan is an  initiative
announced  by former  U.S. Treasury  Secretary Nicholas  F. Brady  in 1989  as a
mechanism  for  debtor  nations   to  restructure  their  outstanding   external
commercial bank indebtedness. In restructuring its external debt under the Brady
Plan  framework, a  debtor nation negotiates  with its existing  bank lenders as
well  as  multilateral   institutions  such  as   the  International  Bank   for
Reconstruction and Development (the 'World Bank') and the International Monetary
Fund  (the 'IMF'). The  Brady Plan framework, as  it has developed, contemplates
the exchange of external commercial bank  debt for newly issued bonds, known  as
Brady  Bonds.  Brady Bonds  may also  be issued  in respect  of new  money being
advanced by  existing lenders  in connection  with the  debt restructuring.  The
World  Bank and/or the IMF support the restructuring by providing funds pursuant
to loan  agreements or  other arrangements  which enable  the debtor  nation  to
collateralize  the new Brady Bonds  or to repurchase outstanding  bank debt at a
discount. Under these arrangements  with the World Bank  and/or the IMF,  debtor
nations  have been required  to agree to the  implementation of certain domestic
monetary and fiscal reforms.  Such reforms have  included the liberalization  of
trade  and foreign investment, the  privatization of state-owned enterprises and
the setting of  targets for public  spending and borrowing.  These policies  and
programs  seek to promote the debtor  country's economic growth and development.
Investors should also  recognize that  the Brady  Plan only  sets forth  general
guiding  principles  for economic  reform and  debt reduction,  emphasizing that
solutions must be negotiated on a case-by-case basis between debtor nations  and
their  creditors. SBAM believes that economic reforms undertaken by countries in
connection with the  issuance of Brady  Bonds make the  debt of countries  which
have  issued  or  have  announced  plans  to  issue  Brady  Bonds  an attractive
opportunity for  investment. However,  there  can be  no assurance  that  SBAM's
expectations with respect to Brady Bonds will be realized.
 
     Investors should recognize that Brady Bonds have been issued only recently,
and  accordingly do not have a long payment history. Brady Bonds which have been
issued to date  are rated in  the categories 'BB'  or 'B' by  Standard &  Poor's
Ratings  Group ('S&P') or 'Ba' or 'B' by  Moody's or, in cases in which a rating
by S&P or  Moody's Investors  Services ('Moody's')  has not  been assigned,  are
generally considered by the investment manager to be of comparable quality.
 
     Agreements implemented under the Brady Plan to date are designed to achieve
debt  and debt-service reduction through specific options negotiated by a debtor
nation with its creditors. As a  result, the financial packages offered by  each
country  differ. The types of options  have included the exchange of outstanding
commercial bank debt for bonds issued at  100% of face value of such debt  which
carry  a below-market  stated rate of  interest (generally known  as par bonds),
bonds issued at a discount from the face value of such debt (generally known  as
discount  bonds), bonds bearing  an interest rate which  increases over time and
bonds issued in exchange for the  advancement of new money by existing  lenders.
Discount  bonds  issued to  date  under the  framework  of the  Brady  Plan have
generally borne interest computed semiannually at  a rate equal to 13/16 of  one
percent  above the then current  six month LIBOR rate.  Regardless of the stated
face amount and stated interest  rate of the various  types of Brady Bonds,  the
applicable  Funds will purchase  Brady Bonds in  secondary markets, as described
below, in which the price and yield to the investor reflect market conditions at
the time of purchase. Brady Bonds issued to date have traded at a deep  discount
from  their face value. Certain sovereign  bonds are entitled to 'value recovery
payments' in  certain circumstances,  which  in effect  constitute  supplemental
interest payments but generally are not collateralized. Certain Brady Bonds have
been collateralized as to principal due at maturity (typically 30 years from the
date  of issuance) by U.S.  Treasury zero coupon bonds  with a maturity equal to
the final maturity of such Brady Bonds, although the collateral is not available
to investors until the final maturity  of the Brady Bonds. Collateral  purchases
are  financed by the  IMF, the World  Bank and the  debtor nations' reserves. In
addition,  interest  payments   on  certain   types  of  Brady   Bonds  may   be
collateralized  by  cash  or  high-grade securities  in  amounts  that typically
represent between 12  and 18 months  of interest accruals  on these  instruments
with the balance of the interest
 
                                       7
 
<PAGE>
<PAGE>
accruals  being uncollateralized. The applicable  Funds may purchase Brady Bonds
with no  or  limited collateralization,  and  will  be relying  for  payment  of
interest  and  (except  in the  case  of principal  collateralized  Brady Bonds)
principal primarily on the willingness and ability of the foreign government  to
make payment in accordance with the terms of the Brady Bonds. Brady Bonds issued
to  date are  purchased and  sold in  secondary markets  through U.S. securities
dealers and other  financial institutions and  are generally maintained  through
European  transnational securities  depositories. A  substantial portion  of the
Brady Bonds and other  sovereign debt securities in  which the Fund invests  are
likely  to  be acquired  at a  discount,  which involves  certain considerations
discussed below under 'Additional Information Concerning Taxes.'
 
STRUCTURED INVESTMENTS
 
     Included among the issuers  of emerging market  country debt securities  in
which  the  Emerging Markets  Debt Fund  may invest  are entities  organized and
operated solely for the purpose of restructuring the investment  characteristics
of  various  securities. These  entities are  typically organized  by investment
banking firms which receive fees in connection with establishing each entity and
arranging for  the  placement of  its  securities. This  type  of  restructuring
involves  the deposit with  or purchase by  an entity, such  as a corporation or
trust, of specified instruments, such as  Brady Bonds, and the issuance by  that
entity  of one or  more classes of  securities ('Structured Investments') backed
by, or representing interests in, the  underlying instruments. The cash flow  on
the  underlying instruments may be apportioned among the newly issued Structured
Investments to create securities with different investment characteristics  such
as  varying  maturities, payment  priorities  or interest  rate  provisions; the
extent of the payments made with respect to Structured Investments is  dependent
on the extent of the cash flow on the underlying instruments. Because Structured
Investments  of the  type in  which the  Emerging Markets  Debt Fund anticipates
investing typically  involve  no  credit enhancement,  their  credit  risk  will
generally be equivalent to that of the underlying instruments.
 
     The  Emerging  Markets Debt  Fund  is permitted  to  invest in  a  class of
Structured Investments  that is  either subordinated  or unsubordinated  to  the
right of payment of another class. Subordinated Structured Investments typically
have  higher  yields and  present greater  risks than  unsubordinated Structured
Investments. Although the Fund's purchase of subordinated Structured Investments
would have a similar economic effect to that of borrowing against the underlying
securities, the purchase will not be deemed to be borrowing for purposes of  the
limitations  placed on  the extent  of the  Fund's assets  that may  be used for
borrowing. See 'Additional Investment Activities and Risk Factors --  Borrowing'
in the Prospectus.
 
     Certain  issuers of Structured Investments may  be deemed to be 'investment
companies' as defined in  the 1940 Act.  As a result,  the Fund's investment  in
these Structured Investments may be limited by the restrictions contained in the
1940 Act described in the Prospectus under 'Additional Investment Activities and
Risk  Factors -- Investment Funds.' Structured Investments are typically sold in
private placement transactions, and there currently is no active trading  market
for Structured Investments.
 
DERIVATIVES
 
     Forward  Currency Exchange  Contracts. As  indicated in  the Prospectus, in
order to hedge  against currency exchange  rate risks or  to increase income  or
gain,  certain Funds  may enter  into forward  currency exchange  contracts with
securities dealers,  financial institutions  or  other parties,  through  direct
bilateral  agreements with such  counterparties. A Fund  will enter into forward
currency exchange  contracts  only  with  counterparties  which  the  investment
manager  deems  creditworthy.  In  connection  with  a  Fund's  forward currency
transactions, the  Fund  will  set  aside  in  a  segregated  account  with  its
custodian,  cash, cash equivalents or high  quality debt securities in an amount
equal to the amount of the contract, to  be used to pay for the commitment.  The
segregated account will be marked-to-market on a daily basis. In addition to the
circumstances  set  forth  in the  Prospectus,  a  Fund may  enter  into forward
currency exchange  contracts  when  the investment  manager  believes  that  the
currency  of a particular  country may suffer a  substantial decline against the
U.S. dollar. In those
 
                                       8
 
<PAGE>
<PAGE>
circumstances, a Fund may  enter into a  forward contract to  sell, for a  fixed
amount  of U.S. dollars, the amount of  that currency approximating the value of
some or all  of the Fund's  portfolio securities denominated  in such  currency.
Forward  contracts  may  limit potential  gain  from  a positive  change  in the
relationship between the U.S. dollar and foreign currencies.
 
     Futures Contracts. As indicated in the Prospectus, certain Funds may  trade
futures  contracts (1) on domestic and foreign exchanges on currencies, interest
rates and bond indices and (2) on  domestic and, to the extent permitted by  the
Commodity  Futures  Trading  Commission  ('CFTC'),  foreign  exchanges  on stock
indices. None of  the Funds is  a commodity pool,  and a Fund  will use  futures
contracts  and options thereon  solely: (i) for bona  fide hedging purposes; and
(ii) for  other purposes  in  amounts permitted  by  the rules  and  regulations
promulgated  by the  CFTC. A  Fund may  not enter  into any  futures contract or
related option  other  than  for  bona fide  hedging  purposes  if,  immediately
thereafter,  the sum of the  amount of aggregate initial  margin deposits on the
Fund's existing  futures contracts  and  premiums paid  for options  on  futures
contracts  would exceed  5% of  the liquidation  value of  the Fund's portfolio,
after taking into account unrealized  profits and losses on existing  contracts.
In  addition, the value of a Fund's  long futures and options positions (futures
contracts on stock  or bond indices,  interest rates or  foreign currencies  and
call  options on such  futures contracts) will  not exceed the  sum of (a) cash,
cash equivalents or high  quality debt securities  segregated for this  purpose,
(b) cash proceeds on existing investments due within thirty days and (c) accrued
profits  on  the  particular  futures or  options  positions.  Furthermore, with
respect to the sale of futures contracts by a Fund, the value of such  contracts
may not exceed the total market value of such Fund's portfolio securities.
 
     Interest  Rate  Futures  Contracts. A  Fund  may enter  into  interest rate
futures contracts in  order to protect  it from fluctuations  in interest  rates
without  necessarily buying or selling fixed income securities. An interest rate
futures contract is  an agreement to  take or  make delivery of  either: (i)  an
amount  of cash equal to the difference  between the value of a particular index
of debt securities at the  beginning and at the end  of the contract period;  or
(ii)  a specified  amount of a  particular debt security  at a future  date at a
price set  at time  of the  contract. For  example, if  a Fund  owns bonds,  and
interest  rates are expected to increase,  the Fund might sell futures contracts
on  debt  securities  having  characteristics  similar  to  those  held  in  the
portfolio.  Such a sale would have much the same effect as selling an equivalent
value of the bonds owned by the Fund. If interest rates did increase, the  value
of  the debt  securities in the  portfolio would  decline, but the  value of the
futures contracts to  the Fund would  increase at approximately  the same  rate,
thereby  keeping the net  asset value of the  Fund from declining  as much as it
otherwise would have. A Fund could  accomplish similar results by selling  bonds
with  longer  maturities and  investing in  bonds  with shorter  maturities when
interest rates are expected to increase.  However, since the futures market  may
be  more liquid  than the cash  market, the use  of futures contracts  as a risk
management technique  allows a  Fund to  maintain a  defensive position  without
having to sell its portfolio securities.
 
     Similarly,  when  the investment  manager expects  that interest  rates may
decline, a Fund may  purchase interest rate futures  contracts in an attempt  to
hedge  against having to make subsequently anticipated purchases of bonds at the
higher prices subsequently expected  to prevail. Since  the fluctuations in  the
value  of appropriately selected futures contracts  should be similar to that of
the bonds that will be purchased, a Fund could take advantage of the anticipated
rise in the cost of the bonds without actually buying them until the market  had
stabilized.  At that time, a Fund could  make the intended purchase of the bonds
in the cash market and the futures contracts could be liquidated.
 
     At the time of delivery of securities pursuant to an interest rate  futures
contract,  adjustments are made  to recognize differences  in value arising from
the delivery of securities with a different interest rate from that specified in
the contract. In some (but not many)  cases, securities called for by a  futures
contract  may have  a shorter term  than the  term of the  futures contract and,
consequently, may not  in fact have  been issued when  the futures contract  was
entered.
 
     Options.  As indicated in the Prospectus, in order to hedge against adverse
market shifts or to increase income or gain, certain Funds may purchase put  and
call  options or write  'covered' put and  call options on  futures contracts on
stock indices, interest rates and
 
                                       9
 
<PAGE>
<PAGE>
currencies. In addition, in order to  hedge against adverse market shifts or  to
increase  its  income,  a Fund  may  purchase  put and  call  options  and write
'covered' put and call  options on stocks,  Loan Participations and  Assignments
(as defined in the Prospectus), stock indices and currencies. A Fund may utilize
options  on currencies in order to hedge against currency exchange rate risks. A
call option is 'covered' if, so long as  the Fund is obligated as the writer  of
the  option, it will own:  (i) the underlying investment  subject to the option;
(ii)  securities  convertible  or  exchangeable  without  the  payment  of   any
consideration  into the securities subject to the option; or (iii) a call option
on the relevant security or currency with  an exercise price no higher than  the
exercise  price on  the call option  written. A  put option is  'covered' if, to
support its obligation  to purchase the  underlying investment if  a put  option
that  a Fund  writes is exercised,  the Fund  will either: (a)  deposit with its
custodian in a segregated account cash, U.S. government securities or other high
grade liquid debt  obligations having  a value at  least equal  to the  exercise
price  of the underlying investment; or (b) continue to own an equivalent number
of puts of the same  'series' (that is, puts  on the same underlying  investment
having  the same exercise  prices and expiration  dates as those  written by the
Fund), or an equivalent number of puts of the same 'class' (that is, puts on the
same underlying investment) with exercise prices greater than those that it  has
written  (or, if  the exercise  prices of the  puts it  holds are  less than the
exercise prices of those it has written, it will deposit the difference with its
custodian in a segregated  account). Parties to  options transactions must  make
certain  payments and/or set aside certain  amounts of assets in connection with
each transaction, as described in the Prospectus.
 
     In all cases except for certain options on interest rate futures contracts,
by writing a call, a Fund will limit its opportunity to profit from an  increase
in the market value of the underlying investment above the exercise price of the
option  for as long as the Fund's  obligation as writer of the option continues.
By writing a put, a Fund will limit its opportunity to profit from a decrease in
the market value of  the underlying investment below  the exercise price of  the
option  for as long as the Fund's  obligation as writer of the option continues.
Upon the exercise  of a put  option written by  a Fund, the  Fund may suffer  an
economic  loss equal to  the difference between  the price at  which the Fund is
required to purchase the underlying investment and its market value at the  time
of  the option exercise, less the premium  received for writing the option. Upon
the exercise of a call option written by a Fund, the Fund may suffer an economic
loss equal to  an amount not  less than  the excess of  the investment's  market
value at the time of the option exercise over the Fund's acquisition cost of the
investment,  less the sum of the premium received for writing the option and the
positive difference, if any,  between the call  price paid to  the Fund and  the
Fund's acquisition cost of the investment.
 
     In all cases except for certain options on interest rate futures contracts,
in  purchasing a put option, a  Fund will seek to benefit  from a decline in the
market price of the underlying investment, while in purchasing a call option,  a
Fund will seek to benefit from an increase in the market price of the underlying
investment.  If  an  option purchased  is  not  sold or  exercised  when  it has
remaining value, or  if the market  price of the  underlying investment  remains
equal  to or greater than the  exercise price, in the case  of a put, or remains
equal to or below the exercise price, in the case of a call, during the life  of
the option, the Fund will lose its investment in the option. For the purchase of
an  option to be profitable, the market  price of the underlying investment must
decline sufficiently below the exercise  price, in the case  of a put, and  must
increase  sufficiently above the exercise price, in the case of a call, to cover
the premium and transaction costs.
 
     In the case of certain options  on interest rate futures contracts, a  Fund
may  purchase a  put option  in anticipation  of a  rise in  interest rates, and
purchase a call option in anticipation of a fall in interest rates. By writing a
covered call option on  interest rate futures contracts,  a Fund will limit  its
opportunity  to profit from a  fall in interest rates.  By writing a covered put
option on interest rate futures contracts, a Fund will limit its opportunity  to
profit from a rise in interest rates.
 
     A  Fund may choose to exercise the  options it holds, permit them to expire
or  terminate  them  prior  to   their  expiration  by  entering  into   closing
transactions.  A Fund may enter into a closing purchase transaction in which the
Fund purchases an option having the same terms as
 
                                       10
 
<PAGE>
<PAGE>
the option it had written or a closing sale transaction in which the Fund  sells
an option having the same terms as the option it had purchased. A covered option
writer  unable to effect a closing purchase transaction will not be able to sell
the underlying security until the option  expires or the underlying security  is
delivered  upon exercise, with the result that the writer will be subject to the
risk of market decline in the  underlying security during such period. Should  a
Fund choose to exercise an option, the Fund will purchase in the open market the
securities,  commodities or commodity futures contracts underlying the exercised
option.
 
     Exchange-listed  options  on  securities   and  currencies,  with   certain
exceptions,  generally settle by physical delivery of the underlying security or
currency,  although  in  the  future,  cash  settlement  may  become  available.
Frequently,  rather than taking or making  delivery of the underlying instrument
through the  process of  exercising the  option, listed  options are  closed  by
entering  into offsetting  purchase or sale  transactions that do  not result in
ownership of the new option. Index options are cash settled for the net  amount,
if  any, by which the option is 'in-the-money' (that is, the amount by which the
value of the underlying instrument exceeds, in the case of a call option, or  is
less than, in the case of a put option, the exercise price of the option) at the
time the option is exercised.
 
     A  Fund's ability to close out its position  as a purchaser or seller of an
exchange-listed put or call option is  dependent upon the existence of a  liquid
secondary market on option exchanges. Among the possible reasons for the absence
of  a  liquid secondary  market  on an  exchange  are: (i)  insufficient trading
interest in certain  options; (ii)  restrictions on transactions  imposed by  an
exchange;  (iii) trading halts,  suspensions or other  restrictions imposed with
respect to particular  classes or  series of options  or underlying  securities;
(iv) interruption of the normal operations on an exchange; (v) inadequacy of the
facilities  of an exchange or the Options Clearing Corporation ('OCC') to handle
current trading  volume;  or  (vi)  a  decision by  one  or  more  exchanges  to
discontinue the trading of options (or a particular class or series of options),
in which event the secondary market on that exchange (or in that class or series
of  options) would cease to exist, although outstanding options on that exchange
that had been listed  by the OCC as  a result of trades  on that exchange  would
generally continue to be exercisable in accordance with their terms.
 
     Over-the-counter  options  ('OTC options')  are purchased  from or  sold to
securities dealers,  financial institutions  or  other parties,  through  direct
bilateral  agreement with  such counterparties.  A Fund  will purchase  and sell
over-the-counter options only  from and to  counterparties which the  investment
manager deems to be creditworthy. OTC options are considered by the staff of the
SEC to be illiquid securities.
 
     The hours of trading for options on securities may not conform to the hours
during which the underlying securities are traded. To the extent that the option
markets  close  before the  markets for  the underlying  securities, significant
price and rate movements can take place in the underlying markets that cannot be
reflected in the options markets.
 
     (a) Options on Stocks and Stock Indices.  A Fund may purchase put and  call
options  and write  covered put  and call  options on  stocks and  stock indices
listed on domestic and  foreign securities exchanges in  order to hedge  against
movements  in the equity markets  or to increase income or  gain to the Fund. In
addition,  the   Fund  may   purchase  options   on  stocks   that  are   traded
over-the-counter.  Options on stock  indices are similar  to options on specific
securities. However,  because  options  on  stock indices  do  not  involve  the
delivery  of an underlying security, the option represents the holder's right to
obtain from the writer cash in an amount equal to a fixed multiple of the amount
by which the exercise price exceeds (in the  case of a put) or is less than  (in
the  case of  a call)  the closing value  of the  underlying stock  index on the
exercise date. Currently, options traded include the Standard & Poor's 100 Index
of Composite Stocks, Standard & Poor's  500 Index of Composite Stocks (the  'S&P
500  Index'), the New York Stock Exchange ('NYSE') Composite Index, the American
Stock Exchange ('AMEX') Market Value Index, the National Over-the-Counter  Index
and  other standard broadly based stock  market indices. Options are also traded
in certain  industry  or market  segment  indices such  as  the Oil  Index,  the
Computer  Technology Index and the Transportation Index. Stock index options are
subject to position  and exercise limits  and other regulations  imposed by  the
exchange on which they are traded.
 
                                       11
 
<PAGE>
<PAGE>
     If  the investment manager  expects general stock market  prices to rise, a
Fund might purchase a call option on a stock index or a futures contract on that
index as a hedge against an  increase in prices of particular equity  securities
it  wants ultimately to buy. If in fact  the stock index does rise, the price of
the particular equity securities intended to be purchased may also increase, but
that increase would be offset in part by the increase in the value of the Fund's
index option or futures contract resulting  from the increase in the index.  If,
on the other hand, the investment manager expects general stock market prices to
decline, it might purchase a put option or sell a futures contract on the index.
If  that index  does in fact  decline, the  value of some  or all  of the equity
securities in  a Fund's  portfolio may  also be  expected to  decline, but  that
decrease  would be  offset in part  by the increase  in the value  of the Fund's
position in such put option or futures contract.
 
     (b) Options  on Currencies.  A Fund  may invest  in options  on  currencies
traded  on domestic and  foreign securities exchanges in  order to hedge against
currency exchange rate risks or to  increase income or gain, as described  above
in 'Forward Currency Exchange Contracts.'
 
     (c)  Options on Futures Contracts. A Fund may purchase put and call options
and write covered put  and call options on  futures contracts on stock  indices,
interest rates and currencies traded on domestic and, to the extent permitted by
the  CFTC,  foreign  exchanges,  in order  to  hedge  all or  a  portion  of its
investments  or  to  increase  income  or  gain  and  may  enter  into   closing
transactions  in order  to terminate existing  positions. There  is no guarantee
that such  closing transactions  can be  effected. An  option on  a stock  index
futures  contract, interest rate futures  contract or currency futures contract,
as contrasted with the direct investment in such a contract, gives the purchaser
the right,  in  return  for the  premium  paid,  to assume  a  position  in  the
underlying  contract at a specified exercise price  at any time on or before the
expiration date of the option. Upon exercise  of an option, the delivery of  the
futures position by the writer of the option to the holder of the option will be
accompanied  by  delivery of  the accumulated  balance  in the  writer's futures
margin account. The potential  loss related to  the purchase of  an option on  a
futures contract is limited to the premium paid for the option (plus transaction
costs).  While the price of the option is  fixed at the point of sale, the value
of the option does  change daily and  the change would be  reflected in the  net
asset value of the Fund.
 
     Interest  Rate and Equity Swaps and Related Transactions. Certain Funds may
enter into interest rate and equity swaps and may purchase or sell (i.e., write)
interest rate and equity caps, floors and collars. A Fund expects to enter  into
these  transactions in order to  hedge against either a  decline in the value of
the securities included in the Fund's  portfolio, or against an increase in  the
price  of the securities which it plans to  purchase, or in order to preserve or
maintain a  return  or spread  on  a particular  investment  or portion  of  its
portfolio  or to achieve  a particular return  on cash balances,  or in order to
increase income or gain. Interest rate and equity swaps involve the exchange  by
a  Fund with another  party of their  respective commitments to  make or receive
payments based on a notional principal amount. The purchase of an interest  rate
or  equity cap  entitles the  purchaser, to  the extent  that a  specified index
exceeds a  predetermined level,  to receive  payments on  a  contractually-based
principal  amount from the  party selling the  interest rate or  equity cap. The
purchase of an  interest rate  or equity floor  entitles the  purchaser, to  the
extent  that  a specified  index falls  below a  predetermined rate,  to receive
payments on a contractually-based  principal amount from  the party selling  the
interest  rate or equity floor. A  collar is a combination of  a cap and a floor
which preserve a certain return within a predetermined range of values.
 
     A Fund may  enter into  interest rate and  equity swaps,  caps, floors  and
collars  on either an asset-based or liability-based basis, depending on whether
it is  hedging  its assets  or  its liabilities,  and  will usually  enter  into
interest rate and equity swaps on a net basis (i.e., the two payment streams are
netted out), with the Fund receiving or paying, as the case may be, only the net
amount  of the two payments. The  net amount of the excess,  if any, of a Fund's
obligations over its entitlements with respect  to each interest rate or  equity
swap  will be accrued on a daily basis, and an amount of cash and/or liquid high
grade debt securities having an aggregate net asset value at least equal to  the
accrued  excess  will  be  maintained  in a  segregated  account  by  the Fund's
custodian.   If   a   Fund   enters   into   an   interest   rate   or    equity
 
                                       12
 
<PAGE>
<PAGE>
swap  on other than a net basis, the  Fund will maintain a segregated account in
the full amount accrued on a daily basis of the Fund's obligations with  respect
to  the swap. A  Fund will only enter  into interest rate  and equity swap, cap,
floor or collar transactions with counterparties the investment manager deems to
be  creditworthy.  The  investment  manager  monitors  the  creditworthiness  of
counterparties  to  its interest  rate and  equity swap,  cap, floor  and collar
transactions on an ongoing basis.  If there is a default  by the other party  to
such  a  transaction, a  Fund  will have  contractual  remedies pursuant  to the
agreements related to the transaction.  The swap market has grown  substantially
in recent years with a large number of banks and investment banking firms acting
both  as principals  and agents  utilizing standardized  swap documentation. The
investment manager has determined that, as a result, the swap market has  become
relatively  liquid. Caps,  floors and  collars are  more recent  innovations for
which standardized documentation  has not yet  been developed and,  accordingly,
they  are less liquid than  swaps. To the extent a  Fund sells caps, floors, and
collars it will maintain in a  segregated account cash and/or liquid high  grade
debt  securities having an aggregate net asset  value at least equal to the full
amount, accrued on a daily basis, of the Fund's obligations with respect to  the
caps,  floors or collars. The use of interest  rate and equity swaps is a highly
specialized activity which  involves investment techniques  and risks  different
from  those associated with  ordinary portfolio securities  transactions. If the
investment manager  is incorrect  in its  forecasts of  market values,  interest
rates  and other applicable factors, the  investment performance of a Fund would
diminish compared with what  it would have been  if these investment  techniques
were  not utilized. Moreover, even  if the investment manager  is correct in its
forecasts, there is a risk that the swap position may correlate imperfectly with
the price of the asset or liability being hedged.
 
     There is  no  limit  on  the  amount  of  interest  rate  and  equity  swap
transactions  that may  be entered  into by  a Fund.  These transactions  do not
involve the  delivery of  securities or  other underlying  assets or  principal.
Accordingly,  the risk of loss with respect to interest rate and equity swaps is
limited to the net amount of payments that a Fund is contractually obligated  to
make,  if any. The effective use of swaps and related transactions by a Fund may
depend, among other things on the  Fund's ability to terminate the  transactions
at  times when the investment manager deems it desirable to do so. Because swaps
and related transactions are bilateral  contractual arrangements between a  Fund
and  counterparties to the transactions, the Fund's ability to terminate such an
arrangement may be  considerably more limited  than in the  case of an  exchange
traded  instrument. To the extent  a Fund does not,  or cannot, terminate such a
transaction in a  timely manner, the  Fund may suffer  a loss in  excess of  any
amounts  that  it may  have received,  or expected  to receive,  as a  result of
entering into the transaction. If the other  party to a swap defaults, a  Fund's
risk  of  loss is  the net  amount of  payments that  the Fund  contractually is
entitled to receive,  if any.  A Fund  may purchase  and sell  caps, floors  and
collars  without  limitation,  subject  to  the  segregated  account requirement
described above.
 
OTHER INVESTMENT COMPANIES
 
     As indicated under 'Investment Restrictions' below, a Fund may from time to
time invest in securities of other  investment companies, subject to the  limits
of the 1940 Act. The return on such investments will be reduced by the operating
expenses,  including  investment  advisory  and  administration  fees,  of  such
investment funds,  and  will be  further  reduced by  Fund  expenses,  including
management fees; that is, there will be a layering of certain fees and expenses.
Investment  in investment companies also may  involve the payment of substantial
premiums above the value of such  companies' portfolio securities. The Funds  do
not  intend to invest  in such vehicles  or funds unless  the investment manager
determines that the potential benefits of such investment justify the payment of
any applicable premiums.
 
PORTFOLIO TURNOVER
 
     Purchases and  sales of  portfolio  securities may  be made  as  considered
advisable  by the investment manager in  the best interests of the shareholders.
Each Fund  intends to  limit portfolio  trading to  the extent  practicable  and
consistent  with its investment objectives.  Each Fund's portfolio turnover rate
may  vary   from   year  to   year,   as  well   as   within  a   year.   Short-
 
                                       13
 
<PAGE>
<PAGE>
term  gains realized from portfolio transactions  are taxable to shareholders as
ordinary income.  In addition,  higher portfolio  turnover rates  can result  in
corresponding increases in portfolio transaction costs for a Fund.
 
     With  respect to the  Money Market Fund,  SBAM seeks to  enhance the Fund's
yield by taking advantage  of yield disparities or  other factors that occur  in
the  money market. For  example, market conditions  frequently result in similar
securities trading at different prices. The Money Market Fund may dispose of any
portfolio security prior to its maturity if such disposition and reinvestment of
the proceeds are expected to enhance yield consistent with SBAM's judgment as to
a desirable portfolio maturity structure or  if such disposition is believed  to
be  advisable due  to other circumstances  or considerations.  Subsequent to its
purchase, a portfolio security  may be assigned  a lower rating  or cease to  be
rated.  Such an event would  not require the disposition  of the instrument, but
SBAM will consider such an event in determining whether the Fund should continue
to hold the security. The policy of the Money Market Fund regarding dispositions
of portfolio securities and its policy of investing in securities deemed to have
maturities of thirteen months or less will result in high portfolio turnover.  A
higher  rate of portfolio turnover results in increased transaction costs to the
Fund in the form of dealer spreads. See 'Portfolio Transactions.'
 
                                       14


<PAGE>
<PAGE>
                             INVESTMENT LIMITATIONS
 
     Except  for:  (i)  the investment  limitations  set forth  below  which are
indicated as fundamental policies; (ii) the investment restrictions set forth in
the Prospectus; and (iii) each Fund's  investment objective as described in  the
Prospectus,  the other policies  and percentage limitations  referred to in this
Statement of  Additional  Information and  the  Prospectus are  not  fundamental
policies  of the  Funds and may  be changed by  vote of each  Company's Board of
Directors without shareholder  approval. The investment  restrictions which  are
fundamental  policies may be changed only  when permitted by law, if applicable,
and approved  by  the holders  of  a majority  of  a Fund's  outstanding  voting
securities,  which, as defined by the 1940 Act,  means the lesser of: (i) 67% of
the shares represented at a  meeting at which more  than 50% of the  outstanding
shares are represented; or (ii) more than 50% of the outstanding shares.
 
     If  a percentage  restriction on investment  or utilization of  assets in a
fundamental policy or restriction set  forth below is adhered  to at the time  a
transaction is effected, a later change in percentage ownership of a security or
kind  of security  resulting from  changing market values  or a  similar type of
event will not be considered a violation of such policy or restriction.
 
     Money Market Fund. The Money Market Fund may not:
 
          (1) invest more than 10% of the value of its net assets in  securities
     which are illiquid;
 
          (2) purchase shares of other investment companies (except as part of a
     merger,  consolidation or reorganization or  purchase of assets approved by
     the Fund's shareholders), provided that the Fund may purchase shares of any
     registered open-end investment company that determines its net asset  value
     per  share  based  on  the  amortized  cost  or  penny-rounding  method, if
     immediately after any such purchase the Fund does not: (a) own more than 3%
     of the outstanding voting stock of  any one investment company, (b)  invest
     more  than  5% of  the  value of  its total  assets  in any  one investment
     company, or (c) invest more  than 10% of the value  of its total assets  in
     the aggregate in securities of investment companies;
 
          (3)  purchase  securities on  margin (except  for delayed  delivery or
     when-issued transactions or  such short-term credits  as are necessary  for
     the clearance of transactions);
 
          (4) sell securities short;
 
          (5)  purchase or  sell commodities  or commodity  contracts, including
     futures contracts;
 
          (6) invest for the  purpose of exercising  control over management  of
     any company;
 
          (7)  make loans, except that  the Fund may (a)  purchase and hold debt
     instruments in accordance  with its investment  objective and policies  and
     (b) enter into repurchase agreements with respect to portfolio securities;
 
          (8)  underwrite the securities of other  issuers, except to the extent
     that the purchase of investments directly from the issuer thereof and later
     disposition of such  securities in  accordance with  the Fund's  investment
     program may be deemed to be an underwriting;
 
          (9)  purchase real estate or real estate limited partnership interests
     (other than securities issued  by companies that invest  in real estate  or
     interests therein);
 
          (10)  invest  directly  in  interests in  oil,  gas  or  other mineral
     exploration development programs or mineral leases; or
 
          (11) purchase warrants.
 
     Each of the above restrictions are fundamental policies of the Money Market
Fund. For the  purpose of  applying the  above percentage  restrictions and  the
percentage   investment   limitations   set   forth   in   the   Prospectus   to
receivables-backed  obligations,  the   special  purpose   entity  issuing   the
receivables-backed  obligations  and/or  one  or  more  of  the  issuers  of the
underlying  receivables  will  be  considered  an  issuer  in  accordance   with
applicable regulations.
 
                                       15
 
<PAGE>
<PAGE>
High  Yield Bond Fund, Emerging  Markets Fund and Asia  Growth Fund. Each of the
High Yield Bond Fund, Emerging Markets Fund and Asia Growth Fund may not:
 
          (1) underwrite securities of other issuers, except to the extent  that
     the  purchase of  investments directly from  the issuer thereof  or from an
     underwriter for an issuer and the  later disposition of such securities  in
     accordance  with  a  Fund's  investment  program may  be  deemed  to  be an
     underwriting;
 
          (2) purchase or  sell real estate,  although a Fund  may purchase  and
     sell  securities of companies  which deal in real  estate, may purchase and
     sell marketable securities which  are secured by  interests in real  estate
     and may invest in mortgages and mortgage-backed securities;
 
          (3)  purchase or sell commodities or commodity contracts except that a
     Fund may engage in derivative transactions  to the extent permitted by  its
     investment policies as such policies are set forth from time to time in the
     Prospectus and this Statement of Additional Information;
 
          (4)  make loans, except  that: (a) a  Fund may purchase  and hold debt
     securities in accordance with its investment objective and policies; (b)  a
     Fund  may  enter  into  repurchase  agreements  with  respect  to portfolio
     securities, subject to applicable  limitations of its investment  policies;
     (c)  a Fund  may lend portfolio  securities with  a value not  in excess of
     one-third of  the  value of  its  total assets,  provided  that  collateral
     arrangements   with  respect  to  options,  forward  currency  and  futures
     transactions will not  be deemed to  involve loans of  securities; and  (d)
     delays  in the settlement of securities transactions will not be considered
     loans;
 
          (5) purchase the  securities of other  investment companies except  as
     permitted under the 1940 Act or in connection with a merger, consolidation,
     acquisition or reorganization;
 
          (6)  purchase  securities on  margin (except  for delayed  delivery or
     when-issued transactions or  such short-term credits  as are necessary  for
     the  clearance of transactions, and except for initial and variation margin
     payments in connection with purchases or sales of futures contracts);
 
          (7) sell securities short; provided that short positions in a  futures
     contract or forward contract are permitted;
 
          (8)  purchase or  retain any  securities of an  issuer if  one or more
     persons affiliated with a Fund owns beneficially more than 1/2 of 1% of the
     outstanding securities of such issuer and such affiliated persons so owning
     1/2 of 1% together own beneficially more than 5% of such securities;
 
          (9) invest in oil,  gas and other  mineral leases, provided,  however,
     that  this  shall  not  prohibit a  Fund  from  purchasing  publicly traded
     securities of companies engaging in whole or in part in such activities;
 
          (10) with  respect to  the High  Yield Bond  Fund only,  purchase  the
     securities  of any issuer if by reason  thereof the value of its investment
     in all securities of that issuer will  exceed 5% of the value of its  total
     assets;
 
          (11)  invest  more  than  5%  of its  total  assets  in  securities of
     unseasoned issuers  (other than  securities issued  or guaranteed  by  U.S.
     federal  or state or foreign  governments or agencies, instrumentalities or
     political subdivisions thereof) which,  including their predecessors,  have
     been in operation for less than three years;
 
          (12)  purchase  puts, calls,  straddles,  spreads and  any combination
     thereof if by reason thereof the value of its aggregate investment in  such
     classes of securities will exceed 5% of its total assets; or
 
          (13)  invest in  warrants (other than  warrants acquired by  a Fund as
     part of a unit or attached to securities at the time of purchase) if, as  a
     result,  the  investments (valued  at the  lower of  cost or  market) would
     exceed 5% of the value  of the Fund's net assets  or if, as a result,  more
     than 2% of the Fund's net assets would be invested in warrants that are not
     listed on AMEX or NYSE.
 
     Investment  restrictions (1)  through (5)  described above  are fundamental
policies and restrictions (6) through (13) are non-fundamental policies of  each
of the High Yield Bond Fund, Emerging Markets Fund and Asia Growth Fund.
 
                                       16
 
<PAGE>
<PAGE>
                 ADDITIONAL PURCHASE AND REDEMPTION INFORMATION
 
     Certificates  representing  shares  of  the Funds  will  not  be  issued to
shareholders. Investors Bank  and Trust Company  ('Investors Bank'), the  Fund's
transfer  agent, will  maintain an account  for each shareholder  upon which the
registration and transfer  of shares are  recorded, and any  transfers shall  be
reflected   by   bookkeeping   entry,   without   physical   delivery.  Detailed
confirmations of  each purchase  or  redemption are  sent to  each  shareholder.
Monthly  statements  of account  are sent  which include  shares purchased  as a
result of a reinvestment of Fund distributions.
 
     Investors Bank will require that a shareholder provide requests in writing,
accompanied  by  a  valid  signature  guarantee  form,  when  changing   certain
information  in  an account  (i.e.,  wiring instructions,  telephone privileges,
etc.).
 
     If the Board of Directors of each of Institutional Series Funds and  Series
Funds  shall  determine  that it  is  in  the best  interests  of  the remaining
shareholders of a Fund, the  Fund may pay the redemption  price in whole, or  in
part, by a distribution in kind from the portfolio of the Fund, in lieu of cash,
taking  such securities at their value  employed for determining such redemption
price, and selecting the  securities in such manner  as such Board of  Directors
may deem fair and equitable. However, each Fund has made an election pursuant to
Rule 18f-1 under the 1940 Act requiring that all redemptions be effected in cash
to  each redeeming shareholder, during  periods of 90 days,  up to the lesser of
$250,000 or 1%  of the net  assets of such  Fund. A shareholder  who receives  a
distribution  in kind may incur a  brokerage commission upon a later disposition
of such  securities and  may receive  less  than the  redemption value  of  such
securities  or property upon  sale, particularly where  such securities are sold
prior to maturity. Redemption in kind is not as liquid as a cash redemption.
 
     Under the 1940 Act, a Fund may suspend the right of redemption or  postpone
the date of payment upon redemption for any period: (i) during which the NYSE is
closed,  other than  customary weekend and  holiday closings;  (ii) during which
trading on the NYSE is restricted; or  (iii) during which (as determined by  the
SEC  by rule or regulation) an emergency exists as a result of which disposal or
valuation of portfolio  securities is  not reasonably practicable,  or for  such
other  periods as the  SEC may permit. A  Fund may also  suspend or postpone the
recordation of the  transfer of its  shares upon  the occurrence of  any of  the
foregoing conditions.
 
     Exchange  Privilege. Shareholders may exchange all  or part of their shares
for shares  of other  Funds  in the  Salomon Brothers  Institutional  Investment
Series,  as indicated in the Prospectus. The  value of the shares exchanged must
meet the investment minimum of the Fund into which the investor is exchanging.
 
     The exchange privilege enables shareholders of a Fund to acquire shares  in
a  Fund with  a different  investment objective when  they believe  that a shift
between Funds is an appropriate investment decision. This privilege is available
to shareholders residing in  any state in which  the Fund shares being  acquired
may legally be sold.
 
     Exercise  of the exchange privilege  is treated as a  sale and purchase for
federal income  tax purposes  and, depending  on the  circumstances, a  short-or
long-term  capital gain or loss may be realized.  The price of the shares of the
Fund into  which  shares are  exchanged  will be  the  new cost  basis  for  tax
purposes.
 
     Upon receipt of proper instructions and all necessary supporting documents,
shares  submitted for exchange are redeemed  at the then-current net asset value
and the proceeds immediately invested in shares of the Fund being acquired at  a
price equal to the then current net asset value of such shares.
 
     All  accounts involved  in a telephone  or telegram exchange  must have the
same registration. If a new account is  to be established, the dollar amount  to
be  exchanged must be at least as much  as the minimum initial investment of the
Fund whose shares are being purchased.  Any new account established by  exchange
will  automatically be  registered in  the same  way as  the account  from which
shares are exchanged and will carry the same dividend option.
 
     The exchange  privilege  is not  designed  for investors  trying  to  catch
short-term  savings  in  market  prices by  making  frequent  exchanges.  A Fund
reserves the right to impose a limit on
 
                                       17
 
<PAGE>
<PAGE>
the number of  exchanges a shareholder  may make. Call  or write the  applicable
Fund for further details.
 
                             PORTFOLIO TRANSACTIONS
 
     Subject  to policy  established by each  Company's Board  of Directors, the
investment manager is primarily responsible for each Fund's portfolio  decisions
and the placing of the Fund's portfolio transactions.
     Fixed-income,  certain short-term securities  and certain equities normally
will be purchased or sold from or  to issuers directly or to dealers serving  as
market  makers  for the  securities at  a  net price,  which may  include dealer
spreads and underwriting commissions. Equity securities may also be purchased or
sold through brokers who will be paid a commission.
     The general policy  of each  Fund in selecting  brokers and  dealers is  to
obtain  the  best  results  taking  into account  factors  such  as  the general
execution and operational facilities of the broker or dealer, the type and  size
of  the transaction involved, the creditworthiness  of the broker or dealer, the
stability of the broker or  dealer, execution and settlement capabilities,  time
required  to  negotiate  and  execute  the  trade,  research  services  and  the
investment manager's arrangements related thereto (as described below),  overall
performance,  the dealer's risk in positioning  the securities involved, and the
broker's commissions  and  dealer's  spread or  mark-up.  While  the  investment
manager  generally seeks the  best price in  placing its orders,  a Fund may not
necessarily be paying the lowest price available.
     Notwithstanding  the  above,  in  compliance  with  Section  28(e)  of  the
Securities  Exchange Act of 1934, the  investment manager may select brokers who
charge a  commission  in  excess  of  that charged  by  other  brokers,  if  the
investment manager determines in good faith that the commission to be charged is
reasonable  in relation to  the brokerage and research  services provided to the
investment manager  by  such brokers.  Research  services generally  consist  of
research  or  statistical  reports  or  oral  advice  from  brokers  and dealers
regarding particular companies, industries  or general economic conditions.  The
investment  manager may  also have arrangements  with brokers  pursuant to which
such brokers provide research services to the investment manager in exchange for
a certain volume of brokerage transactions to be executed by such broker.  While
the  payment  of higher  commissions increases  a  Fund's costs,  the investment
manager does  not  believe that  the  receipt  of such  brokerage  and  research
services  significantly  reduces its  expenses as  a Fund's  investment manager.
Arrangements for  the  receipt of  research  services from  brokers  may  create
conflicts of interest.
     Research services furnished to the investment manager by brokers who effect
securities  transactions for  a Fund  may be used  by the  investment manager in
servicing other investment companies and  accounts which it manages.  Similarly,
research  services furnished  to the  investment manager  by brokers  who effect
securities transactions for  other investment companies  and accounts which  the
investment  manager manages may be used by the investment manager in servicing a
Fund. Not all of these research services  are used by the investment manager  in
managing any particular account, including the Funds.
     Affiliated  persons of a  Fund, or affiliated persons  of such persons, may
from time to time be selected  to execute portfolio transactions for such  Fund.
Subject  to the considerations discussed above and in accordance with procedures
adopted by each Company's  Board of Directors, in  order for such an  affiliated
person  to be  permitted to  effect any portfolio  transactions for  a Fund, the
commissions, fees or other remuneration received by such affiliated person  must
be  reasonable and fair compared to  the commissions, fees or other remuneration
received by  other  brokers in  connection  with comparable  transactions.  This
standard  would allow  such an  affiliated person  to receive  no more  than the
remuneration which would be expected to be received by an unaffiliated broker in
a commensurate arm's-length transaction.
     Under the 1940  Act, persons  affiliated with  a Fund  are prohibited  from
dealing  with it as a principal in the purchase and sale of securities unless an
exemptive order allowing such transactions is obtained from the SEC. However,  a
Fund   may  purchase  securities  from  underwriting  syndicates  of  which  the
investment manager or any of its affiliates (including Salomon Brothers Inc)  is
a  member under  certain conditions, in  accordance with the  provisions of Rule
10f-3 promulgated under the 1940 Act.
 
                                       18


<PAGE>
<PAGE>
                                   MANAGEMENT
 
DIRECTORS AND OFFICERS
 
     The  principal occupations of  the directors and  executive officers of the
Institutional Series Funds  and the  Series Funds for  the past  five years  are
listed  below.  Certain of  the directors  and officers  are also  directors and
officers of  one or  more other  investment  companies for  which SBAM  acts  as
investment  manager. 'Interested directors' of the Funds (as defined in the 1940
Act) are indicated by an asterisk.
 
     Except as indicated below, the address of each executive officer is 7 World
Trade Center, New York, New York 10048.
 
                  INSTITUTIONAL SERIES FUNDS AND SERIES FUNDS
 
<TABLE>
<CAPTION>
                                             POSITION(S)                  PRINCIPAL OCCUPATION(S)
       NAME, ADDRESS AND AGE                     HELD                          PAST 5 YEARS
- ------------------------------------  --------------------------  ---------------------------------------
<S>                                   <C>                         <C>
Charles F. Barber ..................  Director and Chairman,      Consultant; formerly,  Chairman of  the
66 Glenwood Drive                     Audit Committee               Board, ASARCO Incorporated.
Greenwich, CT 06830
Age: 80
Carol L. Colman ....................  Director and                President, Colman Consulting Co., Inc.
Colman Consulting                     Audit Committee
Co., Inc.                             Member
278 Hawley Road
North Salem, NY 10560
Age: 51
Daniel P. Cronin ...................  Director and                Vice  President  and  General  Counsel,
Pfizer, Inc                           Audit Committee               Pfizer  International  Inc.,   Senior
253 East 42nd Street                  Member                        Assistant   General  Counsel,  Pfizer
New York, NY 10017                                                  Inc.
Age: 51
Michael S. Hyland* .................  Director and                President and Managing Director of SBAM
Age: 51                               President                     and Managing Director  and Member  of
                                                                    the   Management  Board   of  Salomon
                                                                    Brothers Inc ('SBI').
 
Giampaolo G. Guarnieri .............  Executive Vice President    Member of Board  of Directors and  Head
Salomon Brothers Asset                                              of  SBAM  AP  from  January  1997  to
Management Asia                                                     present. Director  of SBAM  AP  since
Pacific Limited                                                     July  1996. Vice President and Senior
Three Exchange Square,                                              Portfolio Manager  of  SBAM  AP  from
Hong Kong                                                           April  1995 to June  1996. From April
Age: 33                                                             1995 to January 1996, Vice  President
                                                                    and  Senior Vice President of Salomon
                                                                    Brothers  Hong  Kong  Limited.   From
                                                                    January  1992  to March  1995, Senior
                                                                    Portfolio   Investment   Manager   of
                                                                    Credit   Agricole   Asset  Management
                                                                    (South East Asia) Limited.
Steven Guterman ....................  Executive Vice              Managing Director of SBAM and SBI since
Age: 43                               President                     January 1996. Prior to January  1996,
                                      (Series Fund only)            Director of SBAM and SBI.
Peter J. Wilby .....................  Executive Vice              Managing Director of SBAM and SBI since
Age: 38                               President                     January  1996. Prior to January 1996,
                                                                    Director of SBAM and SBI.
Richard E. Dahlberg ................  Executive Vice              Managing Director of SBAM and SBI since
Age: 57                               President                     January  1996.  From  July  1995   to
                                      (Series Funds only)           January  1996,  Director of  SBAM and
                                                                    SBI. Prior to July 1995, Senior  Vice
                                                                    President    and   Senior   Portfolio
                                                                    Manager with Massachusetts  Financial
                                                                    Services.
</TABLE>
 
                                       19
 
<PAGE>
<PAGE>
 
<TABLE>
<CAPTION>
                                             POSITION(S)                  PRINCIPAL OCCUPATION(S)
       NAME, ADDRESS AND AGE                     HELD                          PAST 5 YEARS
- ------------------------------------  --------------------------  ---------------------------------------
<S>                                   <C>                         <C>
Marybeth Whyte .....................  Executive Vice President    Director  of SBAM and SBI since January
Age: 41                                                             1995.  From  July  1994  to  December
                                                                    1994, Vice President of SBAM and SBI.
                                                                    Prior   to  July  1994,  Senior  Vice
                                                                    President and head  of the  Municipal
                                                                    Bond  area at Fiduciary Trust Company
                                                                    International.
Beth A. Semmel .....................  Executive Vice President    Director of SBAM and SBI since  January
Age: 36                                                             1996. From May 1993 to December 1995,
                                                                    Vice  President of SBAM and SBI. From
                                                                    January  1989  to   May  1993,   Vice
                                                                    President  of  Morgan  Stanley  Asset
                                                                    Management.
Maureen O'Callaghen ................  Executive Vice President    Vice President  of SBAM  and SBI  since
Age: 33                                                             October 1988.
James E. Craige ....................  Executive Vice President    Vice   President,   SBAM   and  Salomon
Age: 29                                                             Brothers Inc since 1992.
Thomas K. Flanagan .................  Executive Vice President    Director, SBAM and Salomon Brothers Inc
Age: 44                                                             since 1991.
Lawrence H. Kaplan .................  Executive Vice              Vice President  and  Chief  Counsel  of
Age: 40                               President and                 SBAM  and Vice President of SBI since
                                      General Counsel               May 1995. Prior  to May 1995,  Senior
                                                                    Vice  President,  Director, Assistant
                                                                    Secretary and General Counsel, Kidder
                                                                    Peabody Asset  Management,  Inc.  and
                                                                    Senior   Vice  President  of  Kidder,
                                                                    Peabody & Co. Incorporated.
Eliza Lau ..........................  Vice President              Vice President and Portfolio Manager of
Salomon Brothers Asset                                              SBAM AP since  March 1996. From  July
Management Asia                                                     1994  to  March 1996,  Vice President
Pacific Limited                                                     and  Portfolio  Manager  of   Salomon
Three Exchange Square                                               Brothers   Hong  Kong  Limited;  from
Hong Kong                                                           October 1991 to  July 1994,  research
Age: 34                                                             analyst with SBI.
Nancy Noyes ........................  Vice President              Director,  SBAM  and SBI  since January
Age: 38                               (Series Funds only)           1996. From  August  1992  to  January
                                                                    1996,  Vice President,  SBAM and SBI.
                                                                    Prior to August 1992, Vice  President
                                                                    of Swiss Bank Corp.
Jennifer G. Muzzey .................  Secretary                   Employee of SBAM since June 1994. Prior
Age: 37                                                             to   June  1994,  Vice  President  of
                                                                    SunAmerica Asset Management
                                                                    Corporation.
Noel B. Daugherty ..................  Assistant Secretary         Employee of SBAM  since November  1996.
Age: 31                                                             From  August 1993 to October 1996, an
                                                                    employee  of  Chancellor  LGT   Asset
                                                                    Management.   From  October  1989  to
                                                                    August  1993,  an  employee  of   The
                                                                    Dreyfus Corporation.
Alan M. Mandel .....................  Treasurer                   Vice  President of  SBAM and  SBI since
Age: 39                                                             January 1995. Prior to January  1995,
                                                                    Chief   Financial  Officer  and  Vice
                                                                    President   of    Hyperion    Capital
                                                                    Management Inc.
Reji Paul ..........................  Assistant Treasurer         Investment  Accounting Manager  of SBAM
Age: 34                                                             since   February   1995.   Prior   to
                                                                    February    1995,    Assistant   Vice
                                                                    President of Mitchell Hutchins  Asset
                                                                    Management Inc.
</TABLE>
 
                                       20
 
<PAGE>
<PAGE>
 
<TABLE>
<CAPTION>
                                             POSITION(S)                  PRINCIPAL OCCUPATION(S)
       NAME, ADDRESS AND AGE                     HELD                          PAST 5 YEARS
- ------------------------------------  --------------------------  ---------------------------------------
<S>                                   <C>                         <C>
Janet Tolchin ......................  Assistant Treasurer         Investment Accounting Manager of SBAM.
Age: 37                               (Series Fund only)
Amy Yeung ..........................  Assistant Treasurer         Investment  Accounting Manager  of SBAM
Age: 31                               (Institutional Series         since April 1995; formerly Manager of
                                      Funds only)                   McGladrey &  Pullen, LLP  (accounting
                                                                    firm).
</TABLE>
 
     Directors of the Series Funds and Institutional Series Funds not affiliated
with  SBAM receive from their respective Funds an  annual fee and a fee for each
Board of Directors and Board committee  meeting attended and are reimbursed  for
all out-of-pocket expenses relating to attendance at meetings. Directors who are
affiliated  with SBAM  do not  receive compensation  but are  reimbursed for all
out-of-pocket expenses relating to attendance at such meetings.
 
     The following  lists shareholders  of record  who held  5% or  more of  the
outstanding  shares of the Funds as of April 1, 1997. The shareholders of 25% or
more of the outstanding shares of a Fund are deemed to be 'control persons,'  as
defined  in the 1940  Act, of the Funds.  As of April  1, 1997, Salomon Brothers
Asset Management Inc  and its  affiliates, 7 World  Trade Center,  New York,  NY
10048,  own 55.96%, 65.71%, 49.74%  and 77.84% of the  outstanding shares of the
Money Market Fund, High Yield Bond Fund, the Emerging Markets Debt Fund and  the
Asia Growth Fund, respectively.
 
<TABLE>
<CAPTION>
                                                                                            PERCENTAGE
                    FUND                                      SHAREHOLDER                      HELD
- ---------------------------------------------  ------------------------------------------   ----------
<S>                                            <C>                                          <C>
Money Market Fund............................  Citibank NA TR                                  52.09%
                                               u/a DTD 9/1/90
                                               Salomon Brothers Inc Retirement Plan
                                               111 Wall Street
                                               20th Fl Zone 1
                                               New York, NY 10043
Money Market Fund............................  Saturn & Co.                                    26.18%
                                               c/o Investors Bank & Trust Co.
                                               P.O. Box 1537
                                               Top 57
                                               Boston, MA 02205-1537
Money Market Fund............................  Viatel Inc.                                      9.48%
                                               800 Third Avenue 18th Floor
                                               New York, NY 10022
Money Market Fund............................  Barr Laboratories Inc.                           5.65%
                                               2 Quaker Road P.O. Box 2900
                                               Pomona, NY 10970-0519
High Yield Bond Fund.........................  Prouco Leasing Corporation                      34.29%
                                               c/o Richard B. Caruso
                                               Suite 314 Two Radnor Station
                                               290 King of Prussia Rd.
                                               Radnor, PA 19087
High Yield Bond Fund.........................  Salomon Brothers A/C PWM1389                    29.58%
                                               Attn: Jim Hamerschlag
                                               7 World Trade Center
                                               New York, NY 10048
High Yield Bond Fund.........................  Salomon Brothers A/C PWM1207                    16.45%
                                               Attn: Jim Hamerschlag
                                               7 World Trade Center
                                               New York, NY 10048
High Yield Bond Fund.........................  Salomon Brothers A/C PWM1249                    15.81%
                                               Attn: Jim Hamerschlag
                                               7 World Trade Center
                                               New York, NY 10048
Emerging Markets Debt Fund...................  Mac & Co. A/C CRNF5025022                       50.26%
                                               Mutual Funds Operations
                                               P.O. Box 3198
                                               Pittsburgh, PA 15230-3198
</TABLE>
 
                                                  (table continued on next page)
 
                                       21
 
<PAGE>
<PAGE>
(table continued from previous page)
 
<TABLE>
<CAPTION>
                                                                                            PERCENTAGE
                    FUND                                      SHAREHOLDER                      HELD
- ---------------------------------------------  ------------------------------------------   ----------
<S>                                            <C>                                          <C>
Emerging Markets Debt Fund...................  Salomon Brothers Holding Co. Inc                19.68%
                                               Attn: Marc Peckman
                                               7 World Trade Center
                                               New York, NY 10048
Emerging Markets Debt Fund...................  Salomon Brothers A/C PWM1207                     9.11%
                                               Attn: Jim Hamerschlag
                                               7 World Trade Center
                                               New York, NY 10048
Emerging Markets Debt Fund...................  Salomon Brothers A/C PWM1249                     8.50%
                                               Attn: Jim Hamerschlag
                                               7 World Trade Center
                                               New York, NY 10048
Emerging Markets Debt Fund...................  Salomon Brothers A/C PWM1389                     8.03%
                                               Attn: Jim Hamerschlag
                                               7 World Trade Center
                                               New York, NY 10048
Asia Growth Fund.............................  Salomon Brothers Holding Co. Inc                45.69%
                                               Attn: Marc Peckman
                                               7 World Trade Center
                                               New York, NY 10048
Asia Growth Fund.............................  Thomas W. Brock                                 22.16%
                                               Cricklewood LN
                                               Harrison, NY 10528
Asia Growth Fund.............................  Salomon Brothers A/C PWM1389                    20.74%
                                               Attn: Jim Hamerschlag
                                               7 World Trade Center
                                               New York, NY 10048
Asia Growth Fund.............................  Salomon Brothers Inc A/C V0410                   8.37%
                                               Attn: Peter Hegel
                                               7 World Trade Center
                                               New York, NY 10048
</TABLE>
 
     As  of April 1, 1997, directors and officers of the Series Funds as a group
beneficially owned less than 1% of the  outstanding shares of any series of  the
Series  Funds. As of April 1, 1997,  directors and officers of the Institutional
Series Funds beneficially owned  less than 1% of  the outstanding shares of  any
series of the Institutional Series Funds.
 
COMPENSATION TABLE
 
     The  following table provides information  concerning the compensation paid
to each director of the Series Funds  during the fiscal year ended December  31,
1996  and the Institutional Series Funds for  the fiscal year ended February 28,
1997. Neither the Institutional  Series Funds nor the  Series Funds provide  any
pension  or retirement benefits  to directors. In  addition, no remuneration was
paid by the Series Funds during the  fiscal year ended December 31, 1996 or  the
Institutional  Series  Funds for  the  fiscal year  ended  February 28,  1997 to
officers of the Series Funds or Institutional Series Funds or to Mr. Hyland, who
as employees of SBAM are 'interested persons,' as defined in the 1940 Act.
 
                                  SERIES FUNDS
 
<TABLE>
<CAPTION>
                                              AGGREGATE
                                             COMPENSATION    TOTAL COMPENSATION
                                               FROM THE       FROM OTHER FUNDS
NAME OF PERSON, POSITION                     SERIES FUNDS    ADVISED BY SBAM(A)       TOTAL COMPENSATION
- ------------------------------------------   ------------    ------------------       ------------------
 
<S>                                          <C>             <C>                      <C>
Charles F. Barber, Director...............      $6,083            $104,650(13)             $110,733(14)
Daniel P. Cronin, Director................      $5,833            $ 22,650(4)              $ 28,483(5)
Carol L. Colman, Director.................      $6,083            $ 29,250(4)              $ 35,333(5)
</TABLE>
 
- ------------
 
 (A) The numbers in  parenthesis indicate  the applicable  number of  investment
     company directorships held by that director.
 
                                       22
 
<PAGE>
<PAGE>
                           INSTITUTIONAL SERIES FUNDS
 
<TABLE>
<CAPTION>
                                           AGGREGATE
                                          COMPENSATION    TOTAL COMPENSATION
                                            FROM THE       FROM OTHER FUNDS
NAME OF PERSON, POSITION                  SERIES FUNDS    ADVISED BY SBAM(A)       TOTAL COMPENSATION(A)
- ---------------------------------------   ------------    ------------------       ---------------------
 
<S>                                       <C>             <C>                      <C>
Charles F. Barber, Director............      $4,250            $118,399(13)              $ 122,649(14)
Daniel P. Cronin, Director.............      $3,000            $ 28,150(4)               $  31,150(5)
Carol L. Colman, Director..............      $4,250            $ 30,999(4)               $  35,249(5)
</TABLE>
 
- ------------
 
 (A) The  numbers in  parenthesis indicate  the applicable  number of investment
     company directorships held by that director.
 
                                       23
 
<PAGE>
<PAGE>
                               INVESTMENT MANAGER
 
     Each Fund retains SBAM to act as its investment manager. SBAM, an  indirect
wholly-owned  subsidiary of  Salomon Inc,  serves as  the investment  manager to
numerous individuals and institutions and other investment companies.
 
     The management contract between SBAM and each respective Fund provides that
SBAM shall manage the operations of such Fund, subject to policy established  by
each  Company's  Board  of  Directors.  Pursuant  to  the  applicable management
contract, SBAM manages each Fund's  investment portfolio, directs purchases  and
sales  of portfolio  securities and reports  thereon to the  Fund's officers and
directors regularly. SBAM also provides the office space, facilities,  equipment
and  personnel necessary  to perform the  following services for  each Fund: SEC
compliance, including record  keeping, reporting  requirements and  registration
statements  and proxies;  supervision of  Fund operations,  including custodian,
accountants and counsel  and other  parties performing  services or  operational
functions for each Fund; certain administrative and clerical services, including
certain  accounting  services,  facilitation  of  redemption  requests, exchange
privileges, account  adjustments, development  of new  shareholder services  and
maintenance  of certain books and records;  and certain services related to each
Fund's shareholders,  including assuring  that investments  and redemptions  are
completed  efficiently, responding  to shareholder  inquiries and  maintaining a
flow of information to shareholders. In addition, SBAM pays the compensation  of
each  Fund's officers, employees  and directors affiliated  with SBAM. Each Fund
bears all  other costs  of its  operations, including  the compensation  of  its
directors not affiliated with SBAM.
 
     Pursuant  to a  sub-advisory agreement (the  'Subadvisory Agreement'), SBAM
has retained Salomon Brothers Asia Pacific Limited ('SBAM AP') as sub-adviser to
the Asia Growth  Fund. Subject to  the supervision  of SBAM, SBAM  AP will  have
responsibility  for the day-to-day management  of the Fund's portfolio. Pursuant
to a sub-administration agreement (the 'Subadministration Agreement'), SBAM  has
retained  Salomon Brothers Asset Management  Limited ('SBAM Limited') to provide
certain administrative services to SBAM relating  to the Asia Growth Fund.  Like
SBAM,  SBAM  AP  and SBAM  Limited  are indirect,  wholly-owned  subsidiaries of
Salomon Inc.  SBAM AP  is  a member  of the  Hong  Kong Securities  and  Futures
Commission,  SBAM Limited  is a member  of the  Investment Management Regulatory
Organization in  the  United Kingdom  and  both SBAM  AP  and SBAM  Limited  are
registered  as  investment  advisers  in  the  United  States  pursuant  to  the
Investment Advisers Act of 1940, as amended.
 
     As compensation for its services, the Money Market Fund pays SBAM a monthly
fee at  an annual  rate of  .20%  of the  Fund's average  daily net  assets.  On
November  16,  1995, the  Board of  Directors  of the  Series Funds  approved an
amendment to  the management  contract  of the  Money  Market Fund,  subject  to
shareholder  approval, to increase the management fee from .10% of average daily
net assets to .20%. The shareholders  approved the amendment on March 26,  1996.
SBAM  has voluntarily agreed  to reduce or  otherwise limit the  expenses of the
Fund (exclusive of taxes, interest and extraordinary expenses such as litigation
and indemnification expenses),  on an annualized  basis, to .25%  of the  Fund's
average  daily net assets and for a period of at least one year from the date of
the Prospectus such expenses shall not  exceed .18% of the Fund's average  daily
net  assets.  See 'Fee  Table' in  the  Prospectus. For  the fiscal  years ended
December 31, 1994, 1995 and 1996 the Money Market Fund paid SBAM $29,658, $8,121
(which reflects a waiver of $7,906) and $0 (which reflects a waiver of $126,986,
respectively, for  its services.  SBAM also  absorbed an  additional $23,847  of
other expenses for the fiscal year ended December 31, 1996).
 
     As  compensation for  its services,  the High Yield  Bond Fund  pays SBAM a
monthly fee at an annual  rate of .50% of the  Fund's average daily net  assets;
the Emerging Markets Debt Fund pays SBAM a monthly fee at an annual rate of .70%
of  the Fund's  average daily net  assets and the  Asia Growth Fund  pays SBAM a
monthly fee at an annual  rate of .75% of the  Fund's average daily net  assets.
SBAM  has voluntarily agreed  to reduce or  otherwise limit the  expenses of the
High Yield Bond Fund, Emerging Markets Debt Fund and Asia Growth Fund (exclusive
of  taxes,  interest   and  extraordinary  expenses   such  as  litigation   and
indemnification  expenses)  on an  annualized basis,  to  .55%, .75%  and 1.00%,
respectively, of the applicable Fund's average daily net assets. See 'Fee Table'
in the Prospectus.
 
     For the fiscal period ended February  28, 1997, SBAM waived all  investment
management  fees from each  of the High  Yield Bond Fund,  Emerging Markets Debt
Fund
 
                                       24
 
<PAGE>
<PAGE>
and Asia Growth Fund, totalling $21,438, $15,317 and $21,437, respectively. SBAM
also absorbed  an  additional  $147,817,  $173,188  and  $205,537  in  expenses,
respectively.
 
     The  management  contract  for each  Fund  provides that  it  will continue
automatically for successive  annual periods provided  that such continuance  is
approved  at least annually: (a) by the vote  of a majority of the directors not
parties to the management contract or interested persons of such parties,  which
votes  are cast in person at a meeting  called for the purpose of voting on such
management contract; and (b) either by the  Board of Directors or a majority  of
the outstanding voting securities. Each management contract may be terminated by
either  party on 60 days' written notice,  and will terminate immediately in the
event of its assignment.
 
     Under the terms  of the  management contract  between each  Fund and  SBAM,
neither  SBAM nor its affiliates shall be  liable for losses or damages incurred
by the Fund (including, with respect to the Asia Growth Fund, the imposition  of
certain  Hong Kong tax liabilities  on the Fund), unless  such losses or damages
are attributable to the  willful misfeasance, bad faith  or gross negligence  on
the  part of either SBAM  or its affiliates or from  reckless disregard by it of
its obligations and duties under the Management Contract ('disabling  conduct').
In  addition, each of the  High Yield Bond Fund,  Emerging Markets Debt Fund and
Asia Growth Fund will indemnify  SBAM and its affiliates  and hold each of  them
harmless  against any  losses or  damages (including,  with respect  to the Asia
Growth Fund, the imposition of certain  Hong Kong tax liabilities on the  Fund),
not resulting from disabling conduct.
 
     Investment  decisions  for a  particular Fund  are made  independently from
those for other funds and accounts advised  or managed by SBAM or SBAM AP.  Such
other  funds and accounts may  also invest in the same  securities as a Fund. If
those funds or accounts are prepared to invest in, or desire to dispose of,  the
same  security  at  the same  time  as  a Fund,  however,  transactions  in such
securities will  be made,  insofar as  feasible, for  the respective  funds  and
accounts  in a manner deemed equitable to all. In some cases, this procedure may
adversely affect the size of the position obtained for or disposed of by a  Fund
or  the price  paid or  received by  a Fund.  In addition,  because of different
investment objectives, a particular  security may be purchased  for one or  more
funds  or  accounts when  one or  more funds  or accounts  are selling  the same
security.
 
     Rule 17j-1 under the 1940 Act requires all registered investment  companies
and  their investment advisers and principal underwriters to adopt written codes
of ethics  and institute  procedures designed  to prevent  'access persons'  (as
defined   in  Rule  17j-1)  from  engaging   in  any  fraudulent,  deceptive  or
manipulative trading practices. Each Company's Board of Directors has adopted  a
code of ethics (the 'Fund Code') that incorporates personal trading policies and
procedures  applicable to access persons of  each Fund, which includes officers,
directors and other specified persons who may make, participate in or  otherwise
obtain information concerning the purchase or sale of securities by the Fund. In
addition,  the Fund Code attaches and incorporates personal trading policies and
procedures applicable to access  persons of SBAM, as  the investment adviser  to
each  Fund, and, in the case Asia Growth Fund, access persons of SBAM AP, as the
Fund's sub-adviser, which policies serve as SBAM's and SBAM AP's code of ethics,
respectively (the 'Adviser Code'). The Fund and Adviser Codes have been designed
to address potential conflicts of interest that can arise in connection with the
personal trading  activities  of  investment  company  and  investment  advisory
personnel.
 
     Pursuant  to  the  Fund and  Adviser  Codes, access  persons  are generally
permitted to  engage  in  personal  securities  transactions,  provided  that  a
transaction  does not involve  securities that are being  purchased or sold, are
being considered for purchase or sale, or are being recommended for purchase  or
sale  by  or for  a  Fund. In  addition,  the Adviser  Codes  contains specified
prohibitions and  blackout  periods for  certain  categories of  securities  and
transactions,  including  a  prohibition on  short-term  trading  and purchasing
securities during an  initial public  offering. The Adviser  Codes also  require
that  access  persons  obtain  preclearance  to  engage  in  personal securities
transactions with  certain  exceptions.  Finally, the  Fund  and  Adviser  Codes
require   access  persons   to  report  all   personal  securities  transactions
periodically. The  restrictions contained  in  the Fund  and Adviser  Codes  are
generally inapplicable to transactions in money market securities.
 
                                       25
 
<PAGE>
<PAGE>
ADMINISTRATOR
 
     Institutional  Series  Funds  and  Series  Funds  employ  IBT  under  their
applicable administration agreement to  provide certain administrative  services
to  the respective Funds. For its services as administrator and custodian to the
Money Market Fund, IBT receives a fee from  the Fund, at an annual rate of  .08%
of  the  Fund's average  daily net  assets. For  its services  as administrator,
custodian and transfer agent to the High Yield Bond Fund, Emerging Markets  Debt
Fund and Asia Growth Fund, each Fund pays IBT a fee of each Fund's average daily
net  assets at an annual rate of .10% up  to $500 million in net assets and .05%
of each Funds average daily net assets  in excess of $500 million. The  services
provided  by IBT under the applicable  administration agreement include, but are
not limited to: certain accounting, clerical and bookkeeping services; Blue  Sky
compliance; corporate secretarial services and assistance in the preparation and
filing  of  tax returns  and reports  to  shareholders and  the SEC.  The Boston
Company Advisors, Inc. ('Boston Company') previously served as the administrator
to the Money Market Fund.  The Money Market Fund paid  the Boston Company a  fee
calculated  daily and  payable monthly,  at annual rate  of .08%  of that Fund's
average daily net assets. For the period  January 1, 1994 to November 30,  1994,
the  Money  Market Fund  paid Boston  Company  fees of  $21,964. For  the period
December 1, 1994 to December 31, 1994,  and for the fiscal years ended  December
31,  1995 and 1996,  the Money Market  Fund paid fees  of $1,762, $26,600 (which
reflects a waiver of $31,000) and  $69,483 (which reflects a waiver of  $20,267)
to IBT. Fees paid to IBT by the High Yield Bond Fund, Emerging Markets Debt Fund
and  Asia Growth  Fund for  the fiscal  period ended  February 28,  1997 were as
follows:
 
<TABLE>
<CAPTION>
                                           FUND                                              FEE PAID*
- ------------------------------------------------------------------------------------------   ---------
 
<S>                                                                                          <C>
High Yield Bond Fund .....................................................................   $  95,000
May 15, 1996 (commencement of operations)
through February 28, 1997
Emerging Markets Fund ....................................................................   $  98,700
October 17, 1996 (commencement of operations)
through February 28, 1997
Asia Growth Fund .........................................................................   $ 149,500
May 6, 1996 (commencement of operations)
through February 28, 1997
</TABLE>
 
- ------------
 
*  The fees  listed  above reflect  waivers  of $30,875,  $30,885  and  $30,663,
   respectively.
 
DISTRIBUTOR
 
     Salomon  Brothers,  located at  7 World  Trade Center,  New York,  New York
10048, serves as  each Fund's  distributor pursuant to  a Distribution  Contract
between  Salomon  Brothers  and  each  Company.  Salomon  Brothers  receives  no
remuneration for its services as distributor.
 
EXPENSES
 
     Each Fund's expenses  include taxes,  interest, fees and  salaries of  such
Fund  directors and officers who are not directors, officers or employees of the
Fund's service contractors, SEC fees, state securities qualification fees, costs
of  preparing  and  printing  prospectuses  for  regulatory  purposes  and   for
distribution to existing shareholders, advisory and administration fees, charges
of  the custodian  and of  the transfer  and dividend  disbursing agent, certain
insurance premiums, outside  auditing and legal  expenses, costs of  shareholder
reports  and shareholder meetings and any extraordinary expenses. Each Fund also
pays for brokerage fees and commissions (if any) in connection with the purchase
and sale of portfolio securities.
 
                                NET ASSET VALUE
 
     In calculating net asset  value, portfolio securities  listed or traded  on
national  securities  exchanges,  or  reported  by  the  NASDAQ  National Market
reporting system, are valued at the last  sale price, or, if there have been  no
sales on that day, at the mean of the current bid and ask price which represents
the current value of the security. Over-the-counter securities are valued at the
mean of the current bid and ask price.
 
                                       26
 
<PAGE>
<PAGE>
     Securities  that are  primarily traded  on foreign  exchanges generally are
valued at the preceding  closing values of such  securities on their  respective
exchanges,  except that when an occurrence subsequent to the time a value was so
established is likely to have changed such  value, then the fair value of  those
securities  will be determined by consideration of other factors by or under the
direction of each  Company's Board  of Directors  or its  delegates. In  valuing
assets,  prices denominated in  foreign currencies are  converted to U.S. dollar
equivalents  at  the  current  exchange  rate.  Securities  may  be  valued   by
independent  pricing  services which  use  prices provided  by  market-makers or
estimates of market values obtained from  yield data relating to instruments  or
securities  with similar characteristics. Short-term obligations with maturities
of 60 days or less are valued at amortized cost, which constitutes fair value as
determined by  the  Board  of  Directors. Amortized  cost  involves  valuing  an
instrument  at its original  cost to a  Fund and thereafter  assuming a constant
amortization to maturity of any discount or premium, regardless of the impact of
fluctuating interest rates  on the  market value  of the  instrument. All  other
securities and other assets of a Fund will be valued at fair value as determined
in  good faith pursuant to  procedures adopted by the  Board of Directors of the
applicable Fund.
 
     As stated in the Prospectus, the Money Market Fund seeks to maintain a  net
asset  value of $1.00 per share with respect  to the Fund and, values the Fund's
instruments on the basis of amortized cost pursuant to Rule 2a-7 under the  1940
Act. While this method provides certainty in valuation, it may result in periods
during which value, as determined by amortized cost, is higher or lower than the
price  the Fund would receive if it sold the instrument. During such periods the
yield to investors  in the  Fund may  differ somewhat  from that  obtained in  a
similar  company which uses market values  for all its portfolio securities. For
example, if the  use of amortized  cost resulted in  a lower (higher)  aggregate
portfolio value on a particular day, a prospective investor in the Fund would be
able to obtain a somewhat higher (lower) yield than would result from investment
in  such a  similar company,  and existing  investors would  receive less (more)
investment income. The purpose of using the amortized cost method of calculation
is to attempt to maintain a stable net asset value per share of $1.00.
 
     The  Board  of  Directors  of  Series  Funds  has  established   procedures
applicable  to the Money  Market Fund, reasonably  designed, taking into account
current market conditions and the  Money Market Fund's investment objective,  to
stabilize  the net asset value  per share as computed  for the purposes of sales
and redemptions at $1.00. These procedures include periodic review, as the Board
of Directors deems appropriate and at such intervals as are reasonable in  light
of  current market  conditions, of  the amortized cost  value per  share and net
asset value per share based upon available indications of market value.
 
     In the event of a  deviation of 1/2 of 1%  between the Money Market  Fund's
net asset value based upon available market quotations or market equivalents and
$1.00  per share based on  amortized cost, the Board  of Directors will promptly
consider what action, if any, should be taken. The Board of Directors will  also
take  such action  as they  deem appropriate  to eliminate  or to  reduce to the
extent reasonably practicable any material dilution or other unfair result which
might arise from differences between the two. Such action may include redemption
in kind,  selling instruments  prior to  maturity to  realize capital  gains  or
losses or to shorten the average maturity, withholding dividends, or utilizing a
net asset value per share as determined by using available market quotations.
 
                                       27


<PAGE>
<PAGE>
                    ADDITIONAL INFORMATION CONCERNING TAXES
 
TAXATION OF A FUND
 
     The  following  discussion is  a brief  summary  of certain  additional tax
considerations affecting a  Fund and  its shareholders.  No attempt  is made  to
present  a detailed  explanation of  all federal,  state, local  and foreign tax
concerns, and  the discussions  set forth  here  and in  the Prospectus  do  not
constitute  tax advice.  Investors are urged  to consult their  own tax advisers
with specific questions relating to federal, state, local or foreign taxes.
 
     The Money Market Fund has qualified for the fiscal year ended December  31,
1996  and High Yield Bond Fund, Emerging  Markets Debt Fund and Asia Growth Fund
have qualified  for the  fiscal period  ended February  28, 1997  and each  Fund
intends to continue to qualify and elect to be treated as a regulated investment
company  ('RIC') under  Subchapter M  of the Internal  Revenue Code  of 1986, as
amended (the 'Code').
 
     Qualification as  a RIC  requires, among  other things,  that a  Fund:  (a)
derive  at least 90%  of its gross  income in each  taxable year from dividends,
interest, payments with respect to securities  loans and gains from the sale  or
other  disposition of stock or securities, or other income (including gains from
options, futures or forward contracts) derived  with respect to its business  of
investing  in such stock, securities or currencies;  (b) derive less than 30% of
its gross income in each taxable year from the sale or other disposition of  any
of  the following held  for less than three  months: stock, securities, options,
futures, certain  forward  contracts  or foreign  currencies  (or  any  options,
futures  or forward contracts on foreign currencies) but only if such currencies
are not directly related to a Fund's principal business of investing in stock or
securities (the '30% limitation');  and (c) diversify its  holdings so that,  at
the  end of each  quarter of each taxable  year, (i) at least  50% of the market
value of  a Fund's  assets is  represented by  cash, cash  items, United  States
government  securities, securities of other RICs  and other securities with such
other securities limited, in respect of any one issuer, to an amount not greater
than 5%  of the  value of  a Fund's  assets and  10% of  the outstanding  voting
securities of such issuer, and (ii) not more than 25% of the value of its assets
is  invested  in the  securities of  any  one issuer  (other than  United States
government securities or the securities of other RICs).
 
     As a RIC,  a Fund  will not be  subject to  Federal income tax  on its  net
investment  income (i.e., its investment company taxable income, as that term is
defined in the Code,  determined without regard to  the deduction for  dividends
paid)  and 'net capital gains'  (the excess of the  Fund's net long-term capital
gains over net short-term capital losses),  if any, that it distributes in  each
taxable  year to its  shareholders, provided that the  Fund distributes at least
90% of its net investment income for such taxable year. However, a Fund would be
subject to corporate  income tax (currently  at a  maximum rate of  35%) on  any
undistributed  net investment income and net capital gains. Each Fund expects to
designate amounts retained as undistributed net capital gains in a notice to its
shareholders who (i)  will be required  to include in  income for United  States
federal  income tax  purposes, as  long-term capital  gains, their proportionate
shares of  the undistributed  amount,  (ii) will  be  entitled to  credit  their
proportionate  shares of the 35% tax paid by a Fund on the undistributed amount,
against their federal income tax liabilities and to claim refunds to the  extent
such  credits exceed  their liabilities and  (iii) will be  entitled to increase
their tax basis, for federal income tax  purposes, in their shares by an  amount
equal  to 65% of the  amount of undistributed net  capital gains included in the
shareholder's income.
 
     A Fund will be subject to a nondeductible 4% excise tax to the extent  that
it does not distribute by the end of each calendar year: (a) at least 98% of its
ordinary  income for such calendar  year; (b) at least 98%  of the excess of its
capital gains over  its capital  losses for  the one  year period  ending, as  a
general  rule, on  October 31 of  each year;  and (c) 100%  of the undistributed
income and  gains from  the preceding  calendar year  (if any)  pursuant to  the
calculations  in (a) and (b). For this purpose  any income or gain retained by a
Fund that  is  subject  to  corporate  tax  will  be  considered  to  have  been
distributed by year-end.
 
     A  Fund's investment  in options,  swaps and  related transactions, futures
contracts and forward contracts, options on futures contracts and stock  indices
and  certain other securities, including transactions involving actual or deemed
short sales or foreign exchange gains or
 
                                       28
 
<PAGE>
<PAGE>
losses are  subject  to  many  complex  and  special  tax  rules.  For  example,
over-the-counter  options  on  debt  securities  and  equity  options, including
options on stock and on narrow-based stock indexes, will be subject to tax under
Section 1234 of the Code, generally producing a long-term or short-term  capital
gain  or loss upon exercise, lapse  or closing out of the  option or sale of the
underlying stock or security. By contrast,  a Fund's treatment of certain  other
options,  futures  and forward  contracts entered  into by  a Fund  is generally
governed by Section 1256 of the  Code. These 'Section 1256' positions  generally
include listed options on debt securities, options on broad-based stock indexes,
options  on securities indexes, options  on futures contracts, regulated futures
contracts and certain foreign currency contracts and options thereon.
 
     Absent a tax election to the contrary, each such Section 1256 position held
by a Fund will be  marked-to-market (i.e., treated as if  it were sold for  fair
market  value) on the last business day of a Fund's fiscal year, and all gain or
loss associated with  fiscal year transactions  and mark-to-market positions  at
fiscal  year end (except certain currency gain or loss covered by Section 988 of
the Code) will generally be  treated as 60% long-term  capital gain or loss  and
40%  short-term capital gain or loss.  The effect of Section 1256 mark-to-market
rules may be to accelerate income or  to convert what otherwise would have  been
long-term  capital  gains into  short-term capital  gains or  short-term capital
losses into long-term capital losses within  a Fund. The acceleration of  income
on  Section 1256 positions may  require a Fund to  accrue taxable income without
the corresponding receipt  of cash.  In order to  generate cash  to satisfy  the
distribution  requirements of  the Code,  a Fund may  be required  to dispose of
portfolio securities that they otherwise would have continued to hold or to  use
cash  flows from other sources  such as the sale of  Fund shares. In these ways,
any or all of these rules may affect the amount, character and timing of  income
earned and in turn distributed to shareholders by a Fund.
 
     When  a Fund holds options or  contracts which substantially diminish their
risk of loss with  respect to other  positions (as might  occur in some  hedging
transactions),  this combination of  positions could be  treated as a 'straddle'
for tax purposes, resulting in possible  deferral of losses, adjustments in  the
holding  periods of Fund securities and  conversion of short-term capital losses
into long-term capital losses. Certain  tax elections exist for mixed  straddles
i.e., straddles comprised of at least one Section 1256 position and at least one
non-Section  1256 position which may reduce  or eliminate the operation of these
straddle rules.
 
     The 30% limitation (discussed above) requirement may limit a Fund's ability
to engage  in  options, spreads,  straddles,  hedging transactions,  forward  or
futures   contracts  or  options  on  any   of  these  positions  because  these
transactions are often consummated  in less than three  months, may require  the
sale of portfolio securities held less than three months and may, as in the case
of  short sales  of portfolio securities  reduce the holding  periods of certain
securities within a Fund.
 
     A Fund will monitor its transactions in such options and contracts and  may
make  certain other tax elections  in order to mitigate  the effect of the above
rules and to prevent disqualification of the Fund as a RIC under Subchapter M of
the Code.
 
     A Fund may make investments  that produce income that  is not matched by  a
corresponding  cash distribution  to the  Fund, such  as investments pay-in-kind
bonds or in obligations  such as certain Brady  Bonds or zero-coupon  securities
having  original issue  discount (i.e.,  an amount  equal to  the excess  of the
stated redemption price of  the security at maturity  over its issue price),  or
market  discount (i.e., an amount  equal to the excess  of the stated redemption
price of the  security over  the basis  of such  bond immediately  after it  was
acquired)  if the Fund elects  to accrue market discount  on a current basis. In
addition, income may  continue to accrue  for federal income  tax purposes  with
respect  to a  non-performing investment.  Any such  income would  be treated as
income earned  by a  Fund and  therefore would  be subject  to the  distribution
requirements  of  the  Code.  Because  such  income  may  not  be  matched  by a
corresponding cash distribution to  a Fund, the Fund  may be required to  borrow
money  or dispose of  other securities to  be able to  make distributions to its
investors. The extent to which a Fund may liquidate securities at a gain may  be
limited  by the short-short test discussed above. In addition, if an election is
not made to currently accrue market
 
                                       29
 
<PAGE>
<PAGE>
discount with  respect to  a  market discount  bond, all  or  a portion  of  any
deduction for any interest expense incurred to purchase or hold such bond may be
deferred until such bond is sold or otherwise disposed.
 
     If  a Fund purchases shares in  certain foreign investment entities, called
'passive foreign investment  companies' ('PFICs'),  the Fund may  be subject  to
U.S.  federal income tax on a portion  of any 'excess distribution' or gain from
the disposition  of  shares even  if  the income  is  distributed as  a  taxable
dividend  by the Fund to  its shareholders. Additional charges  in the nature of
interest may be imposed  on either a  Fund or its  shareholders with respect  to
deferred taxes arising from the distributions or gains. If a Fund were to invest
in a PFIC and (if the Fund received the necessary information available from the
PFIC,  which  may  be  difficult to  obtain)  elected  to treat  the  PFIC  as a
'qualified electing fund'  under the Code  (a 'QEF'), in  lieu of the  foregoing
requirements,  the  Fund would  be required  to  include in  income each  year a
portion of the ordinary earnings and net capital gains of the PFIC, even if  not
distributed  to the Fund, and the amounts would be subject to the 90% and excise
tax  distribution  requirements  described  above.  Because  of  the   expansive
definition  of a PFIC,  it is possible that  a Fund may invest  a portion of its
assets in PFICs.
 
     On  April  1,  1992  the  Internal  Revenue  Service  proposed  regulations
providing a mark-to-market election for RICs that would avoid the need for a RIC
to  make a QEF election. These regulations  would be effective for taxable years
ending after promulgation of the regulations as final regulations.
 
     A Fund may be subject to certain taxes, including without limitation, taxes
imposed by foreign countries with respect to its income and capital gains. If  a
Fund  qualifies as  a RIC, certain  distribution requirements  are satisfied and
more than 50%  of the  value of  the Fund's  total assets  at the  close of  any
taxable  year consists of stock or securities of foreign corporations, which for
this purpose may include obligations  of foreign governmental issuers, the  Fund
may  elect, for United States federal income  tax purposes, to treat any foreign
country's income or withholding taxes  paid by the Fund  that can be treated  as
income  taxes under  the United  States income  tax principles,  as paid  by its
shareholders.
 
     For any year that either Fund  makes such an election, each shareholder  in
such  Fund will be required to  include in its income an  amount equal to his or
her allocable  share  of such  income  taxes paid  by  such Fund  to  a  foreign
country's  government  and shareholders  will  be entitled,  subject  to certain
limitations, to  credit their  portions of  these amounts  against their  United
States  federal income tax due,  if any, or to  deduct their portions from their
United States taxable income,  if any. No deductions  for foreign taxes paid  by
such  Funds may  be claimed,  however, by  non-corporate shareholders (including
certain foreign shareholders  described below)  who do  not itemize  deductions.
Shareholders  that are exempt from tax under Section 501(a) of the Code, such as
pension plans, generally  will derive  no benefit from  this election.  However,
such  shareholders  should not  be disadvantaged  either  because the  amount of
additional income they are deemed to  receive equal to their allocable share  of
such  foreign countries' income taxes  paid by such Funds  generally will not be
subject to United States federal income tax.
 
TAXATION OF UNITED STATES SHAREHOLDERS
 
     The Prospectus describes each Fund's policy with respect to distribution of
net investment income and  any net capital  gains. Shareholders should  consider
the tax implications of buying shares just prior to a distribution. Although the
price of shares purchased at that time may reflect the amount of the forthcoming
distribution,  those  purchasing just  prior to  a  distribution will  receive a
distribution which will nevertheless be taxable to them.
 
     Shareholders receiving a distribution in the form of additional shares will
be treated for  federal income tax  purposes as receiving  a distribution in  an
amount  equal to the fair market value,  determined as of the distribution date,
of the shares received and will have  a cost basis in each share received  equal
to  the  fair market  value  of a  share  of a  Fund  on the  distribution date.
Shareholders will  be  notified  annually  as  to  the  federal  tax  status  of
distributions,  and shareholders receiving  distributions in the  form of shares
will receive a report as to the fair market value of the shares received.
 
                                       30
 
<PAGE>
<PAGE>
     Gain or loss on the sale or other disposition of Fund shares will result in
capital gain or loss to shareholders. Generally, a shareholder's capital gain or
loss will be long-term gain or loss if  the shares have been held for more  than
one year. In general, the maximum federal income tax rate imposed on individuals
with  respect to net  realized long-term capital  gains will be  limited to 28%,
whereas the maximum federal income tax rate imposed on individuals with  respect
to  net realized  short-term capital gains  (which are taxed  at ordinary income
rates) will be  39.6%. With  respect to corporate  taxpayers, long-term  capital
gains  are taxed  at the  same federal  income tax  rates as  short-term capital
gains, the maximum being 35%. If a shareholder redeems or exchanges shares of  a
Fund  before he or  she has held them  for more than  six months, any short-term
capital loss  on such  redemption or  exchange will  be treated  as a  long-term
capital  loss  to the  extent  of any  capital  gain dividends  received  by the
shareholder (or credited to  the shareholder as  an undistributed capital  gain)
with respect to such shares.
 
                                PERFORMANCE DATA
 
     As  indicated in the  Prospectus, from time  to time, a  Fund may quote its
'yield,' 'effective  yield,' 'average  annual  total return'  and/or  'aggregate
total  return'  in  advertisements or  in  reports and  other  communications to
shareholders and compare  its performance  figures to  those of  other funds  or
accounts  with  similar objectives  and  to relevant  indices.  Such performance
information will be calculated as described below.
 
AVERAGE ANNUAL TOTAL RETURN
 
     A Fund's 'average annual total return'  figures, as described and shown  in
the  Prospectus, are computed according to a  formula prescribed by the SEC. The
formula can be expressed as follows:
 
          P(1+T)'pp'n = ERV
 
Where:  P = a hypothetical initial payment of $1,000
        T = average annual total return
        n = number of years
      ERV = Ending Redeemable Value of a hypothetical $1,000 payment made at the
            beginning of a 1-, 5-, or 10-year  period at the end of such  period
            (or  fractional  portion  thereof),  assuming  reinvestment  of  all
            dividends and distributions.
 
     The performance data  represents past performance;  investment returns  and
principal  value of an  investment will fluctuate so  that an investor's shares,
when redeemed, may be worth more or less than their original cost.
 
AGGREGATE TOTAL RETURN
 
     The 'aggregate  total return'  figures  for a  Fund,  as described  in  the
Prospectus,  represent the  cumulative change in  the value of  an investment in
Fund shares of  such class  for the  specified period  and are  computed by  the
following formula:
 
                       AGGREGATE TOTAL RETURN = ERV-P
                                               -------
                                                  P
 
Where:    P = a hypothetical initial payment of $10,000.
 
       ERV = Ending  Redeemable Value of a  hypothetical $10,000 investment made
             at the beginning of a 1-, 5-, or 10-year period at the end of  such
             period  (or fractional  portion thereof),  assuming reinvestment of
             all dividends and distributions.
 
     The following table sets forth the  aggregate total return for each of  the
High  Yield  Bond Fund,  Emerging Markets  Debt  Fund and  Asia Growth  Fund for
certain periods of time ending February 28, 1997 (in each case, after management
fee waiver and reimbursement of certain expenses).
 
                                       31
 
<PAGE>
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                   MAY 15, 1996
                                                                                 (COMMENCEMENT OF
                                                                                    INVESTMENT
                                                                                   OPERATIONS)
                                                                                     THROUGH
                                    FUND                                        FEBRUARY 28, 1997
- ----------------------------------------------------------------------------   --------------------
<S>                                                                            <C>
High Yield Bond Fund........................................................           15.1%

</TABLE>
 
<TABLE>
<CAPTION>
                                                                                    OCTOBER 17, 1996
                                                                                    (COMMENCEMENT OF
                                                                                 INVESTMENT OPERATIONS)
                                                                                        THROUGH
                                     FUND                                          FEBRUARY 28, 1997
- ------------------------------------------------------------------------------   ----------------------
<S>                                                                              <C>
Emerging Markets Fund.........................................................            11.4%

</TABLE>
 
<TABLE>
<CAPTION>
                                                                                      MAY 6, 1996
                                                                                    (COMMENCEMENT OF
                                                                                 INVESTMENT OPERATIONS)
                                                                                        THROUGH
                                    FUND                                           FEBRUARY 28, 1997
- -----------------------------------------------------------------------------    ----------------------
<S>                                                                              <C>
Asia Growth Fund.............................................................              9.6%

</TABLE>
 
YIELD
     With respect to the  Money Market Fund, yield  quotations are expressed  in
annualized terms and may be quoted on a compounded basis.
     The  current yield for the Money Market Fund is computed by (a) determining
the net change in the value of  a hypothetical pre-existing account in the  Fund
having  a balance of one  share at the beginning of  a seven calendar day period
for which yield is to be quoted; (b) dividing the net change by the value of the
account at the beginning of the period to obtain the base period return; and (c)
annualizing the results (i.e., multiplying the base period return by 365/7). The
net change in the value of the account reflects the value of additional  shares,
but  does not include  realized gains and losses  or unrealized appreciation and
depreciation. In  addition,  the Money  Market  Fund may  calculate  a  compound
effective  annualized yield by adding 1 to the base period return (calculated as
described above), raising the sum to a power equal to 365/7 and subtracting 1.
     For the seven-day period ended December 31, 1996, the annualized yield  and
effective yield of the Money Market Fund were 5.40% and 5.54%, respectively.
     In  periods of declining interest rates  the Money Market Fund's yield will
tend  to  be  somewhat  higher  than  prevailing  market  rates  on   short-term
obligations,  and in periods of rising interest rates the Fund's yield will tend
to be somewhat lower. Also, when interest  rates are falling, the inflow of  net
new  money to  the Money  Market Fund  from the  continuous sale  of shares will
likely be  invested in  portfolio instruments  producing lower  yields than  the
balance  of the Fund's portfolio, thereby  reducing the Fund's current yield. In
periods of rising interest rates, the opposite can be expected to occur.
     Any quotation of  performance stated  in terms of  yield will  be given  no
greater prominence than the information prescribed under SEC rules. In addition,
all advertisements containing performance data of any kind will include a legend
disclosing  that such performance data represents  past performance and that the
investment return and principal value of an investment will fluctuate so that an
investor's shares, when redeemed, may be worth more or less than their  original
cost.
     Advertisements  and communications  may compare  a Fund's  performance with
that of other mutual funds, as  reported by Lipper Analytical Services, Inc.  or
similar  independent  services or  financial  publications. From  time  to time,
advertisements and other Fund materials  and communications may cite  statistics
to reflect a Fund's performance over time utilizing comparisons to indices.
     A  Fund's performance  will vary  from time  to time  depending upon market
conditions,  the   composition  of   its  portfolio   and  operating   expenses.
Consequently,   any  given  performance  quotation   should  not  be  considered
representative of the performance of Fund shares for any specified period in the
future. Because performance will vary, it may not provide a basis for  comparing
an  investment in  Fund shares with  certain bank deposits  or other investments
that pay a  fixed return  for a  stated period  of time.  Investors comparing  a
Fund's  performance with that of other mutual funds should give consideration to
the nature,  quality  and  maturity  of  the  respective  investment  companies'
portfolio  securities  and market  conditions.  An investor's  principal  is not
guaranteed by any Fund.
 
                                       32
 
<PAGE>
<PAGE>
                                 CAPITAL STOCK
 
     As used in the Prospectus and this Statement of Additional Information, the
term  'majority,'  when  referring  to   the  approvals  to  be  obtained   from
shareholders in connection with matters affecting a particular Fund or any other
single  portfolio (e.g., approval of investment management contracts), means the
vote of the lesser of: (i) 67% of  the shares of the portfolio represented at  a
meeting  if  the holders  of  more than  50% of  the  outstanding shares  of the
portfolio are  present in  person or  by proxy;  or (ii)  more than  50% of  the
outstanding  shares of the portfolio. Shareholders  are entitled to one vote for
each full share held and fractional votes for fractional shares held.
 
     Each Fund share is entitled to such dividends and distributions out of  the
income  earned  on the  assets belonging  to that  Fund as  are declared  in the
discretion of the Fund's Board of Directors.
 
     In the event of the liquidation or dissolution of the Institutional  Series
Funds  or Series Funds,  as the case  may be, shares  of a Fund  are entitled to
receive the assets attributable to it that are available for distribution, and a
proportionate distribution, based upon the relative net assets of a Fund, of any
general assets not attributable to a  Fund that are available for  distribution.
Shareholders are not entitled to any preemptive rights. All shares, when issued,
will  be fully  paid, non-assessable, fully  transferable and  redeemable at the
option of the holder.
 
                          CUSTODIAN AND TRANSFER AGENT
 
     IBT serves as custodian for each Fund. As each Fund's custodian, IBT, among
other things: maintains a custody account or  accounts in the name of the  Fund;
receives  and delivers all  assets for the  Fund upon purchase  and upon sale or
maturity; collects and receives all income and other payments and  distributions
on  account of the assets of the Fund;  and makes disbursements on behalf of the
Fund. The custodian does  not determine the investment  policies of a Fund,  nor
decide  which securities a Fund will buy or sell. For its services as custodian,
IBT receives  a  monthly  fee based  upon  the  daily average  market  value  of
securities  held in  custody and  also receives  securities transaction charges,
including out-of-pocket expenses. The  assets of each Fund  are held under  bank
custodianship  in compliance  with the  1940 Act.  A Fund  may also periodically
enter into arrangements with other qualified custodians with respect to  certain
types  of  securities or  other transactions  such  as repurchase  agreements or
derivatives transactions.  IBT  also serves  as  transfer agent  for  each  Fund
registers  and  processes  transfers  of  Fund  stock,  processes  purchase  and
redemption orders, acts as dividend disbursing agent for the Funds and maintains
records and handles  correspondence with  respect to  shareholder accounts.  For
these services, IBT receives a monthly fee. See 'Administrator.'
 
                            INDEPENDENT ACCOUNTANTS
 
     Price Waterhouse ('Price Waterhouse') LLP serves as each Fund's independent
accountants.   Price  Waterhouse   LLP  provides  audit   services,  tax  return
preparation and assistance  and consultation  in connection with  review of  SEC
filings.   The  financial  statements  and   financial  highlights  included  or
incorporated by reference in  the Prospectus and included  in this Statement  of
Additional  Information have been included in  reliance upon the report of Price
Waterhouse, independent  accountants, given  on the  authority of  that firm  as
experts in auditing and accounting. Price Waterhouse's address is 1177 Avenue of
the Americas, New York, New York 10036.
 
                                    COUNSEL
 
     Simpson  Thacher  &  Bartlett (a  partnership  which  includes professional
corporations) serves as counsel  to each Fund, and  is located at 425  Lexington
Avenue, New York, New York 10017-3954.
 
     Piper & Marbury LLP, of Baltimore, Maryland has issued an opinion regarding
the  valid issuance  of shares  being offered  for sale  pursuant to  the Funds'
Prospectus.
 
                                       33


<PAGE>
<PAGE>
                              FINANCIAL STATEMENTS
 
     The  audited financial statements  for the Institutional  Money Market Fund
for the fiscal year  ended December 31,  1996 as well  as the audited  financial
statements   for  the  High  Yield  Bond  Fund  for  the  period  May  15,  1996
(commencement of operations) to February 28, 1997, for the Emerging Markets Debt
Fund for the period  October 17, 1996 (commencement  of operations) to  February
28,  1997 and for the Asia Growth Fund  for the period May 6, 1996 (commencement
of operations) to February 28, 1997, are included on the following pages.
 
                                       34


<PAGE>
<PAGE>
SALOMON        BROTHERS        INSTITUTIONAL       MONEY       MARKET       FUND

Portfolio of Investments
December 31, 1996
<TABLE>
<CAPTION>
                                                                           YIELD TO
                                                                           MATURITY
PRINCIPAL                                                                 ON DATE OF     MATURITY       VALUE
  AMOUNT     DESCRIPTION                                                   PURCHASE*       DATE       (NOTE 1a)
<S>          <C>                                                          <C>            <C>         <C>
- -----------------------------------------------------------------------------------------------------------------

             CERTIFICATES OF DEPOSIT -- 16.3%
             BANKS -- 16.3%
 
$6,000,000   Bank Austria..............................................      5.380%      01/21/97    $  6,000,033
 
 2,500,000   Barclay's Bank............................................      5.550       01/06/97       2,500,000
 
 5,000,000   Deutsche Bank.............................................      5.570       12/10/97       4,998,644
 
 5,000,000   Mellon Bank N.A...........................................      5.750       02/18/97       5,000,630
 
 2,500,000   Rabobank..................................................      5.530       02/10/97       2,500,000
 
 5,000,000   Societe Generale..........................................      5.450       02/10/97       5,000,138
                                                                                                     ------------
 
             TOTAL CERTIFICATES OF DEPOSIT (COST $25,999,445)..........                                25,999,445
                                                                                                     ------------
 
             COMMERCIAL PAPER -- 68.2%
 
             AEROSPACE & DEFENSE -- 4.5%
 
 6,000,000   AlliedSignal..............................................      5.600       01/27/97       5,975,733
 
 1,200,000   Lockheed Martin...........................................      5.720       01/30/97       1,194,471
                                                                                                     ------------
                                                                                                        7,170,204
                                                                                                     ------------
 
             BANKS -- 6.8%
 
 6,000,000   ANZ Delaware..............................................      5.280       05/12/97       5,884,720
 
 5,000,000   BBL North America.........................................      5.340       01/07/97       4,995,550
                                                                                                     ------------
                                                                                                       10,880,270
                                                                                                     ------------
 
             BEVERAGES -- 5.3%
 
 8,500,000   Seagram (Joseph E.) & Sons................................      5.700       01/08/97       8,490,579
                                                                                                     ------------
 
             CHEMICALS -- 3.8%
 
 5,000,000   Air Products & Chemicals..................................      5.320       01/17/97       4,988,178
 
 1,000,000   Praxair...................................................      5.510       02/28/97         991,123
                                                                                                     ------------
                                                                                                        5,979,301
                                                                                                     ------------
 
             EDUCATION -- 3.8%
 
 6,000,000   Regents of the University of California...................      5.330       01/17/97       5,985,787
                                                                                                     ------------
 
             FINANCIAL SERVICES -- 11.1%
 
 4,000,000   BIL North America.........................................      5.320       01/31/97       3,982,266
 
 7,500,000   General Electric Capital..................................      5.340       06/23/97       7,307,538
 
 6,500,000   UBS Finance...............................................      5.550       01/21/97       6,479,958
                                                                                                     ------------
                                                                                                       17,769,762
                                                                                                     ------------
</TABLE>
 
                See accompanying notes to financial statements.
                                       35
 
<PAGE>
<PAGE>
SALOMON        BROTHERS        INSTITUTIONAL       MONEY       MARKET       FUND

Portfolio of Investments
December 31, 1996
 
<TABLE>
<CAPTION>
                                                                          YIELD TO
                                                                          MATURITY ON
PRINCIPAL                                                                 DATE OF        MATURITY       VALUE
  AMOUNT     DESCRIPTION                                                  PURCHASE*        DATE       (NOTE 1a)
- -----------------------------------------------------------------------------------------------------------------
<C>          <S>                                                          <C>            <C>         <C>
             COMMERCIAL PAPER -- 68.2% (CONTINUED)
             HEAVY MACHINERY -- 1.5%
 
$2,400,000   Cooperative Association of Tractor Dealers................      5.400%      02/04/97    $  2,387,760
                                                                                                     ------------
 
             INSURANCE -- 5.3%
 
 2,000,000   Great West Life & Annuity.................................      5.530       01/06/97       1,998,464
 
 2,500,000   Safeco Credit.............................................      5.320       01/06/97       2,498,153
 
 2,000,000   Transamerica Finance......................................      5.420       03/03/97       1,981,632
 
 2,000,000   Transamerica Finance......................................      5.430       03/31/97       1,973,152
                                                                                                     ------------
                                                                                                        8,451,401
                                                                                                     ------------
 
             LODGING -- 0.6%
 
 1,000,000   Hilton Hotels.............................................      5.700       01/31/97         995,250
                                                                                                     ------------
 
             MEDICAL SUPPLIES -- 1.9%
 
 3,000,000   Abbott Laboratories.......................................      5.250       01/16/97       2,993,437
                                                                                                     ------------
 
             MUNICIPAL -- 0.9%
 
 1,500,000   Methodist Hospital (Houston, Texas).......................      5.450       04/01/97       1,500,000
                                                                                                     ------------
 
             OIL COMPANIES -- 1.3%
 
 1,000,000   Occidental Petroleum......................................      5.700       02/14/97         993,033
 
 1,031,000   Vastar Resources..........................................      5.800       01/17/97       1,028,343
                                                                                                     ------------
                                                                                                        2,021,376
                                                                                                     ------------
 
             RETAILERS -- 3.1%
 
 5,000,000   Southland.................................................      5.340       01/27/97       4,980,717
                                                                                                     ------------
 
             SECURITIES BROKERS -- 9.3%
 
 3,500,000   BT Securities.............................................      5.570       01/10/97       3,495,127
 
 3,500,000   Goldman Sachs Group.......................................      5.650       01/06/97       3,497,255
 
 3,000,000   Goldman Sachs Group.......................................      5.350       05/21/97       2,937,583
 
 5,000,000   Morgan Stanley Group......................................      5.320       01/23/97       4,983,745
                                                                                                     ------------
                                                                                                       14,913,710
                                                                                                     ------------
 
             TECHNOLOGY -- 1.2%
 
 1,900,000   Hitachi Credit America....................................      5.400       01/15/97       1,896,010
                                                                                                     ------------
 
             TRANSPORTATION -- 2.5%
 
 4,000,000   Daimler-Benz NA...........................................      5.320       01/13/97       3,992,907
                                                                                                     ------------
</TABLE>
 
                See accompanying notes to financial statements.
                                       36
 
<PAGE>
<PAGE>
SALOMON        BROTHERS        INSTITUTIONAL       MONEY       MARKET       FUND
 
<TABLE>
<CAPTION>
                                                                           YIELD TO
                                                                          MATURITY ON
PRINCIPAL                                                                   DATE OF      MATURITY       VALUE
  AMOUNT     DESCRIPTION                                                   PURCHASE*       DATE       (NOTE 1a)
- -----------------------------------------------------------------------------------------------------------------
             COMMERCIAL PAPER -- 68.2% (CONTINUED)
 
<C>          <S>                                                          <C>            <C>         <C>
             UTILITIES-TELEPHONE -- 5.3%
 
$2,500,000   BellSouth Capital.........................................      5.420%      01/21/97    $  2,492,468

 6,000,000   US West Communications....................................      5.320       01/17/97       5,985,814
                                                                                                     ------------
                                                                                                        8,478,282
                                                                                                     ------------
             TOTAL COMMERCIAL PAPER (COST $108,886,753)................                               108,886,753
                                                                                                     ------------
             ASSET-BACKED SECURITIES -- 5.1%
 
             FINANCIAL SERVICES -- 5.1%
 
 3,089,226   Capita Equipment Receivables Trust........................      5.600       10/15/97       3,089,226
 
 5,000,000   Olympic Auto Receivables Trust............................      5.430       12/15/97       5,000,000
                                                                                                      ------------
             TOTAL ASSET-BACKED SECURITIES (COST $8,089,226)...........                                 8,089,226
                                                                                                      ------------
             FLOATING RATE NOTES -- 8.3%
 
             CALIFORNIA -- 1.6%
 
 2,600,000   Pasadena, California Certificates of Participation VR.....      5.800       01/07/97       2,600,000
                                                                                                      ------------
 
             ILLINOIS -- 1.1%
 
 1,800,000   Illinois Student Assistance Commission VR.................      5.850       01/01/97       1,800,000
                                                                                                      ------------
 
             NEW YORK -- 0.6%
 
   400,000   New York City, New York
             Industrial Development Agency VR..........................      6.000       01/01/97         400,000
 
   600,000   New York City, New York
             Industrial Development Agency VR..........................      6.000       01/01/97         600,000
                                                                                                     ------------
                                                                                                        1,000,000
                                                                                                     ------------
 
             NORTH CAROLINA -- 3.7%
 
 2,900,000   Community Health Systems VR...............................      5.900       01/01/97       2,900,000
 
 3,015,000   Greensboro, North Carolina GO VR..........................      5.950       01/01/97       3,015,000
                                                                                                     ------------
                                                                                                        5,915,000
                                                                                                     ------------
 
             TEXAS -- 1.3%
 
 1,970,000   Texas State GO VR.........................................      5.880       01/01/97       1,970,000
                                                                                                     ------------
 
             TOTAL FLOATING RATE NOTES (COST $13,285,000)..............                                13,285,000
                                                                                                     ------------
 
             TOTAL INVESTMENTS -- 97.9% (COST $156,260,424)............                               156,260,424
</TABLE>
 
                See accompanying notes to financial statements.
                                       37
 
<PAGE>
<PAGE>
SALOMON        BROTHERS        INSTITUTIONAL       MONEY       MARKET       FUND
- ------------------------------------------
Portfolio of Investments
December 31, 1996
 
<TABLE>
<CAPTION>
                                                                           YIELD TO
                                                                          MATURITY ON
PRINCIPAL                                                                   DATE OF      MATURITY       VALUE
  AMOUNT     DESCRIPTION                                                   PURCHASE*       DATE       (NOTE 1a)
- -----------------------------------------------------------------------------------------------------------------
             REPURCHASE AGREEMENT -- 2.0%
 
<S>          <C>                                                          <C>            <C>         <C>
$3,162,000     Repurchase Agreement dated 12/31/96, with UBS Securities,
               collateralized by $2,523,000 U.S. Treasury Bonds,
               8.875%, due 02/15/19, valued at $3,226,286; proceeds:         
               $3,163,142 (cost $3,162,000)............................      6.500%      01/02/97    $  3,162,000

               Other assets in excess of liabilities -- 0.1%.............                                 228,354
                                                                                                     ------------
                NET ASSETS -- 100.0%......................................                           $159,650,778
                                                                                                     ------------
                                                                                                     ------------
</TABLE>
 
 * Yield  to maturity on date  of purchase, except in  the case of Variable Rate
   Demand Notes (VR), whose yields are determined on date of last interest  rate
   change.  For Variable Rate Demand  Notes, maturity date shown  is the date of
   next interest rate change.
 
Abbreviation used in this statement:
GO -- General Obligation
 
                See accompanying notes to financial statements.
                                       38


<PAGE>
<PAGE>
SALOMON        BROTHERS        INSTITUTIONAL       MONEY       MARKET       FUND

Statement of Assets and Liabilities
December 31, 1996
 
<TABLE>
<S>                                                                                              <C>
ASSETS
Investment, at value (cost $156,260,424)......................................................   $156,260,424
Repurchase Agreement, at value (cost $3,162,000)..............................................      3,162,000
Cash..........................................................................................            348
Receivable from investment manager............................................................         23,847
Interest receivable...........................................................................        418,133
Other assets..................................................................................            643
                                                                                                 ------------
        Total assets..........................................................................    159,865,395
                                                                                                 ------------
LIABILITIES
Dividend payable..............................................................................         85,811
Payable for Fund shares repurchased...........................................................         50,649
Accrued expenses..............................................................................         78,157
                                                                                                 ------------
        Total liabilities.....................................................................        214,617
                                                                                                 ------------
NET ASSETS (equivalent to $1.00 per share on 159,650,135 shares of $.001 par value capital
  stock outstanding)..........................................................................   $159,650,778
                                                                                                 ------------
                                                                                                 ------------
</TABLE>
 

Statement of Operations
For the Year Ended December 31, 1996
 
<TABLE>
<S>                                                                                    <C>           <C>
INCOME
    Interest.....................................................................................    $3,571,519
EXPENSES
    Management fee..................................................................   $  126,986
    Custody, shareholder services and administration fees...........................       89,750
    Legal...........................................................................       20,001
    Audit and tax return preparation fees...........................................       20,000
    Registration and filing fees....................................................       20,000
    Printing........................................................................       15,001
    Directors' fees and expenses....................................................        2,767
    Other...........................................................................        6,941
                                                                                       ----------
                                                                                          301,446
    Management fee waived and expenses absorbed by investment manager...............     (150,833)
    Credits earned on cash balances and fees waived by custodian....................      (20,267)      130,346
                                                                                       ----------    ----------
    Net investment income........................................................................     3,441,173
NET REALIZED GAIN ON SECURITIES SOLD.............................................................           554
                                                                                                     ----------
NET INCREASE IN NET ASSETS FROM OPERATIONS.......................................................    $3,441,727
                                                                                                     ----------
                                                                                                     ----------
</TABLE>
 
                See accompanying notes to financial statements.
 
                                       39
 
<PAGE>
<PAGE>
SALOMON        BROTHERS        INSTITUTIONAL       MONEY       MARKET       FUND

Statement of Changes in  Net Assets
 
<TABLE>
<CAPTION>
                                                                                     YEAR ENDED DECEMBER 31,
                                                                                   ----------------------------
                                                                                     1996(a)           1995
<S>                                                                                <C>              <C>
- ---------------------------------------------------------------------------------------------------------------
OPERATIONS
    Net investment income.......................................................   $  3,441,173     $   744,110
    Net realized gain on securities sold........................................            554           6,443
                                                                                   ------------     -----------
    Net increase in net assets from operations..................................      3,441,727         750,553
                                                                                   ------------     -----------
DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS
    Dividends from net investment income........................................     (3,441,173)       (744,110)
    Distributions from net realized gains.......................................             --            (959)
                                                                                   ------------     -----------
                                                                                     (3,441,173)       (745,069)
CAPITAL SHARE TRANSACTIONS
    Proceeds from sales of shares...............................................    267,128,203      79,773,668
    Net asset value of shares issued in reinvestment of dividends...............      2,994,052         555,617
    Payment for redemption of shares............................................   (121,897,499)    (96,624,438)
                                                                                   ------------     -----------
    Net increase (decrease) in net assets derived from share transactions.......    148,224,756     (16,295,153)
                                                                                   ------------     -----------
    Contribution from investment manager........................................             --          48,447
                                                                                   ------------     -----------
    Net increase (decrease) in net assets.......................................    148,225,310     (16,241,222)
NET ASSETS
    Beginning of year...........................................................     11,425,468      27,666,690
                                                                                   ------------     -----------
    End of year.................................................................   $159,650,778     $11,425,468
                                                                                   ------------     -----------
                                                                                   ------------     -----------
</TABLE>
 

Financial Highlights
SELECTED DATA PER SHARE OF CAPITAL STOCK OUTSTANDING THROUGHOUT EACH YEAR:
 
<TABLE>
<CAPTION>
                                                                             YEAR ENDED DECEMBER 31,
                                                               ----------------------------------------------------
                                                               1996(a)      1995       1994       1993       1992
<S>                                                            <C>         <C>        <C>        <C>        <C>
- -------------------------------------------------------------------------------------------------------------------
Net asset value, beginning of year..........................   $  1.000    $ 1.000    $ 1.000    $ 1.000    $ 1.000
                                                               --------    -------    -------    -------    -------
Net investment income.......................................      0.050*     0.049*     0.036      0.028      0.034
Dividends from net investment income........................     (0.050)    (0.049)    (0.036)    (0.028)    (0.034)
                                                               --------    -------    -------    -------    -------
Net asset value, end of year................................   $  1.000    $ 1.000    $ 1.000    $ 1.000    $ 1.000
                                                               --------    -------    -------    -------    -------
                                                               --------    -------    -------    -------    -------
Net assets, end of year (thousands).........................   $159,651    $11,425    $27,667    $34,120    $50,554
Total investment return.....................................      +5.1%      +5.0%      +3.6%      +2.9%      +3.4%
Ratios to average net assets:
    Expenses................................................      0.20%*     0.65%*     0.45%      0.35%      0.44%
    Net investment income...................................      5.29%      4.89%      3.53%      2.83%      3.42%
</TABLE>
 
* Net investment income per share would have been $.048 and $.049 and the
  expense ratios to average net assets would have been .46% and .70%,
  respectively, for the years ended December 31, 1996 and 1995, before
  applicable waiver of management fee, expenses absorbed by the investment
  manager and credits earned from and fees waived by the custodian.
 
(a) The Fund changed its name and objective on April 29, 1996. See Note 1.
 
                See accompanying notes to financial statements.
 
                                       40


<PAGE>
<PAGE>
SALOMON        BROTHERS        INSTITUTIONAL       MONEY       MARKET       FUND
- ---------------------------------------------------
Notes to Financial Statements
 
1. Organization and Significant Accounting Policies
 
Salomon Brothers Series Funds Inc (the 'Company') was incorporated in Maryland
on April 17, 1990 as an open-end management investment company, and currently
operates as a series company comprised of ten portfolios. Only information with
respect to Salomon Brothers Institutional Money Market Fund (the 'Fund') is
included in this report. The other portfolios of the Company are reported in a
separate report and are not included herein. The Fund changed its name from
Salomon Brothers U.S. Treasury Securities Money Market Fund to its current name
on April 29, 1996. Prior to April 29, 1996, the Fund's objective was to seek a
high level of current income by investing only in short-term United States
government and government agency securities. The Fund's current objective is to
seek as high a level of current income as is consistent with liquidity and the
stability of principal.
 
Following is a summary of significant accounting policies followed by the Fund
in the preparation of its financial statements. The policies are in conformity
with generally accepted accounting principles ('GAAP'). The preparation of
financial statements in accordance with GAAP requires management to make
estimates of certain reported amounts in the financial statements. Actual
amounts could differ from those estimates.
 
          (a) SECURITIES VALUATION. Portfolio securities are valued using the
     amortized cost method, which involves initially valuing an investment at
     its cost and thereafter assuming a constant amortization to maturity of any
     premium or discount. This method results in a value approximating market
     value and does not include unrealized gains or losses.
 
          (b) FEDERAL INCOME TAXES. The Fund has complied and intends to
     continue to comply with the requirements of the Internal Revenue Code
     applicable to regulated investment companies, including the distribution
     requirements of the Tax Reform Act of 1986, and to distribute all of its
     income, including any net realized gains, to shareholders. Therefore, no
     Federal income tax or excise tax provision is required.
 
          (c) DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS. Dividends on the
     shares of the Fund are declared each business day to shareholders of record
     at twelve noon (New York time) on that day, and paid on the last business
     day of the month. Distributions of net realized gains to shareholders, if
     any, are declared annually and recorded on the ex-dividend date. Dividends
     and distributions are determined in accordance with income tax regulations,
     which may differ from GAAP.
 
                                       41
 
<PAGE>
<PAGE>
SALOMON        BROTHERS        INSTITUTIONAL       MONEY       MARKET       FUND

Notes to Financial Statements
 
          (d) EXPENSES. Direct expenses are charged to the Fund, and general
     expenses of the Company are allocated to the Fund based on relative average
     net assets for the period the expense was incurred.
 
          (e) OTHER. Investment transactions are recorded as of the trade date.
     Interest income, including the accretion of discounts or the amortization
     of premiums, is recognized when earned. Gains or losses on sales of
     securities are calculated on the identified cost basis.
 
2. Management Fee and Other Agreements
 
The Company retains Salomon Brothers Asset Management Inc ('SBAM'), an indirect
wholly owned subsidiary of Salomon Inc, to act as investment manager of the
Fund, subject to the supervision by the Board of Directors of the Company. SBAM
furnishes the Company with office space and certain services and facilities
required for conducting the business of the Company and pays the compensation of
its officers. The management fee for these services is payable monthly and is
based on an annual rate of .20% of the Fund's average daily net assets. Prior to
April 29, 1996, the management fee was based on an annual rate of .10% of the
Fund's average daily net assets.
 
Under a voluntary agreement between SBAM and the Fund, SBAM has agreed to reduce
or otherwise limit the expenses of the Fund (exclusive of taxes, interest, and
extraordinary expenses such as litigation and indemnification expenses), on an
annualized basis to .18% of the Fund's average daily net assets for a period
from April 29, 1996 through April 29, 1997, and to no more than .25% thereafter.
For the year ended December 31, 1996, SBAM voluntarily waived management fees of
$126,986 and voluntarily absorbed $23,847 of expenses.
 
Investors Bank & Trust Company ('IBT') serves as custodian, administrator and
shareholder servicing agent for the Fund, which includes performing custodial
and certain administrative services in connection with the operation of the
Fund. IBT agreed to waive a portion of its custody fees through October 31,
1996. In addition, a credit is earned on outstanding cash balances held by the
custodian during each billing period. During the year ended December 31, 1996,
fees of $20,000 were waived by IBT and credits of $267 were earned on
outstanding cash balances of the Fund.
 
The Fund has an agreement with Salomon Brothers Inc, an affiliate of SBAM, to
distribute its shares.
 
                                       42
 
<PAGE>
<PAGE>
SALOMON        BROTHERS        INSTITUTIONAL       MONEY       MARKET       FUND
 
3. Capital Stock
 
At December 31, 1996, the Company had 10,000,000,000 shares of authorized
capital stock, par value $.001 per share, of which the Fund had 1,000,000,000
shares authorized.
 
Because the Fund has maintained a $1.00 net asset value per share from
inception, the number of shares sold, shares issued to shareholders in
reinvestment of dividends declared, and shares repurchased, are equal to the
dollar amount shown in the Statement of Changes in Net Assets for the
corresponding capital share transactions.
 
Net assets consist of:
 
<TABLE>
<S>                                                                                              <C>
Par value.....................................................................................   $    159,650
Paid-in capital in excess of par..............................................................    159,490,485
Undistributed net investment income...........................................................            265
Accumulated net realized gain on investments..................................................            378
                                                                                                 ------------
Net assets....................................................................................   $159,650,778
                                                                                                 ------------
                                                                                                 ------------
</TABLE>
 
4. Portfolio Activity
 
The Fund invests in money market instruments maturing in thirteen months or less
whose credit ratings are within the two highest ratings category of two
nationally recognized statistical rating organizations ('NRSROs') or if rated by
only one NRSRO, that NRSRO, or, if not rated, are believed by the investment
manager to be of comparable quality.
 
During the year ended December 31, 1996, the Fund utilized $176 of capital loss
carry-forwards to offset net realized capital gains.
 
                                       43


<PAGE>
<PAGE>
SALOMON        BROTHERS        INSTITUTIONAL       MONEY       MARKET       FUND

Report of Independent Accountants
 
To the Board of Directors and Shareholders of
Salomon Brothers Institutional Money Market Fund
 
In our opinion, the accompanying statement of assets and liabilities, including
the portfolio of investments, and the related statements of operations and of
changes in net assets and the financial highlights present fairly, in all
material respects, the financial position of Salomon Brothers Institutional
Money Market Fund (one of the portfolios constituting Salomon Brothers Series
Funds Inc, hereafter referred to as the 'Fund') at December 31, 1996, the
results of its operations for the year then ended, the changes in its net assets
for each of the two years in the period then ended and the financial highlights
for each of the five years in the period then ended, in conformity with
generally accepted accounting principles. These financial statements and
financial highlights (hereafter referred to as 'financial statements') are the
responsibility of the Fund's management; our responsibility is to express an
opinion on these financial statements based on our audits. We conducted our
audits of these financial statements in accordance with generally accepted
auditing standards which require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements, assessing the
accounting principles used and significant estimates made by management, and
evaluating the overall financial statement presentation. We believe that our
audits, which included confirmation of securities at December 31, 1996 by
correspondence with the custodian, provide a reasonable basis for the opinion
expressed above.
 
PRICE WATERHOUSE LLP
New York, New York
February 18, 1997
 
                                    PAGE 44


<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
PORTFOLIO OF INVESTMENTS
FEBRUARY 28, 1997
SALOMON BROTHERS INSTITUTIONAL HIGH YIELD BOND FUND
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
PRINCIPAL                                                                          INTEREST    MATURITY      VALUE
 AMOUNT                                 DESCRIPTION                                  RATE        DATE      (NOTE 1a)
- --------   ---------------------------------------------------------------------   --------    --------    ----------
 
<S>        <C>                                                                     <C>         <C>         <C>
           CORPORATE BONDS -- 95.1%
           BASIC INDUSTRIES -- 17.1%
$100,000   Algoma Steel.........................................................    12.375%    07/15/05    $  112,000
 100,000   Alvey Systems........................................................    11.375     01/31/03       105,500
 100,000   Envirosource.........................................................     9.750     06/15/03        98,000
 100,000   Fonda Group..........................................................     9.500     03/01/07       100,750
 240,000   NL Industries
             (Zero Coupon until 10/15/98, 13.00% thereafter)(a).................    11.765     10/15/05       219,600
 100,000   Norcal Waste Systems*................................................    13.000     11/15/05       112,750
 100,000   Renco Metals.........................................................    11.500     07/01/03       105,250
 100,000   Shop Vac.............................................................    10.625     09/01/03       106,250
 150,000   Specialty Equipment..................................................    11.375     12/01/03       163,500
                                                                                                           ----------
                                                                                                            1,123,600
                                                                                                           ----------
           CONSUMER CYCLICALS -- 7.0%
 100,000   CSK Auto.............................................................    11.000     11/01/06       104,000
 150,000   Revlon Worldwide(a)..................................................    10.750     03/15/01        98,438
  25,000   Revlon Worldwide(a)..................................................    12.556     03/15/98        23,438
 150,000   Waxman Industries
             (Zero Coupon until 06/01/99, 12.75% thereafter)(a).................    12.663     06/01/04       124,500
 100,000   Wyndham Hotel........................................................    10.500     05/15/06       107,000
                                                                                                           ----------
                                                                                                              457,376
                                                                                                           ----------
           CONSUMER NON-CYCLICALS -- 24.5%
 100,000   Berry Plastics.......................................................    12.250     04/15/04       111,750
 100,000   Doane Products.......................................................    10.625     03/01/06       107,000
 150,000   Eyecare Centers of America...........................................    12.000     10/01/03       163,125
 100,000   Hills Stores.........................................................    12.500     07/01/03        80,000
 100,000   Iron Mountain........................................................    10.125     10/01/06       108,000
 100,000   Loomis Fargo.........................................................    10.000     01/15/04       102,375
 100,000   Majestic Star Casino.................................................    12.750     05/15/03       108,500
 100,000   Pen-Tab Industries...................................................    10.875     02/01/07       104,500
 200,000   Rayovac..............................................................    10.250     11/01/06       208,500
 100,000   Remington Product....................................................    11.000     05/15/06        93,750
 100,000   Smiths Food & Drug...................................................    11.250     05/15/07       113,500
 200,000   Stroh Brewery........................................................    11.100     07/01/06       210,500
 100,000   Trump Atlantic City..................................................    11.250     05/01/06        96,500
                                                                                                           ----------
                                                                                                            1,608,000
                                                                                                           ----------
           ENERGY -- 11.3%
 100,000   Benton Oil & Gas.....................................................    11.625     05/01/03       112,000
 200,000   Costilla Energy......................................................    10.250     10/01/06       212,000
 100,000   Dawson Product Services..............................................     9.375     02/01/07       102,250
 100,000   National Energy Group................................................    10.750     11/01/06       104,500
 200,000   Parker Drilling......................................................     9.750     11/15/06       213,000
                                                                                                           ----------
                                                                                                              743,750
                                                                                                           ----------
</TABLE>
 
                See accompanying notes to financial statements.
                                       45
 
<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
PORTFOLIO OF INVESTMENTS
FEBRUARY 28, 1997
SALOMON BROTHERS INSTITUTIONAL HIGH YIELD BOND FUND (CONCLUDED)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
PRINCIPAL                                                                          INTEREST    MATURITY      VALUE
 AMOUNT                                 DESCRIPTION                                 RATE         DATE      (NOTE 1a)
- --------   ---------------------------------------------------------------------    ------     --------    ----------
<S>        <C>                                                                     <C>         <C>         <C>
           FINANCIAL SERVICES -- 4.8%
$100,000   Dollar Financial.....................................................    10.875%    11/15/06    $  105,500
 200,000   Intertek Finance.....................................................    10.250     11/01/06       210,000
                                                                                                           ----------
                                                                                                              315,500
                                                                                                           ----------
           HEALTH CARE -- 1.6%
 100,000   Maxxim Medical.......................................................    10.500     08/01/06       105,250
                                                                                                           ----------
           MEDIA -- 12.8%
 200,000   Adelphia Communications..............................................    12.500     05/15/02       212,500
 100,000   Cablevision Systems..................................................    10.500     05/15/16       105,000
 300,000   Diamond Cable
             (Zero Coupon until 12/15/00, 11.75% thereafter)(a).................    11.392     12/15/05       207,000
 100,000   Hollinger International Publishing...................................     9.250     02/01/06       101,500
 150,000   Marcus Cable
             (Zero Coupon until 06/15/00, 14.125% thereafter)(a)................    13.316     12/15/05       110,250
 100,000   SFX Broadcasting.....................................................    10.750     05/15/06       108,000
                                                                                                           ----------
                                                                                                              844,250
                                                                                                           ----------
           TECHNOLOGY -- 8.8%
 100,000   Packard Bioscience...................................................     9.375     03/01/07       101,750
 200,000   Quest Diagnostic.....................................................    10.750     12/15/06       209,500
 100,000   Talley Manufacturing & Technology....................................    10.750     10/15/03       104,500
 150,000   UNC..................................................................    11.000     06/01/06       165,562
                                                                                                           ----------
                                                                                                              581,312
                                                                                                           ----------
           TELECOMMUNICATIONS & UTILITIES -- 4.3%
 250,000   ICG Holdings
             (Zero Coupon until 09/15/00, 13.50% thereafter)(a).................    11.459     09/15/05       185,625
 150,000   International CableTel
             (Zero Coupon until 02/01/01, 11.500% thereafter)(a)................    11.804     02/01/06       100,500
                                                                                                           ----------
                                                                                                              286,125
                                                                                                           ----------
           TRANSPORTATION -- 2.9%
 200,000   Central Transport Rental Group.......................................     9.500     04/30/03       189,000
                                                                                                           ----------
           TOTAL INVESTMENTS -- 95.1%
               (cost $6,020,829).......................................................................     6,254,163
           Other assets in excess of liabilities -- 4.9%...............................................       320,622
                                                                                                           ----------
           NET ASSETS -- 100.0%........................................................................    $6,574,785
                                                                                                           ----------
                                                                                                           ----------
</TABLE>
 
  * Interest  rate shown reflects current rate  on instrument with variable rate
    or step coupon rate.
 (a) Zero or step coupon bond. Interest rate shown reflects yield to maturity on
     date of purchase.
 
                See accompanying notes to financial statements.
                                       46


<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
PORTFOLIO OF INVESTMENTS
FEBRUARY 28, 1997
SALOMON BROTHERS INSTITUTIONAL EMERGING MARKETS DEBT FUND
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
PRINCIPAL                                                                          INTEREST    MATURITY      VALUE
AMOUNT(a)                                DESCRIPTION                                 RATE        DATE      (NOTE 1a)
- ----------   -------------------------------------------------------------------   --------    --------    ----------
 
<S>            <C>                                                                   <C>         <C>         <C>
               SOVEREIGN BONDS -- 79.9%
               ARGENTINA -- 15.9%
     250,000   Republic of Argentina, Global Bond(f)..............................    11.750%    02/12/07    $  263,688
     245,000   Republic of Argentina, FRN*........................................     6.625     03/31/05       222,031
     750,000   Republic of Argentina, Par Bond, Series L*.........................     5.250     03/31/23       499,688
                                                                                                             ----------
                                                                                                                985,407
                                                                                                             ----------
               BRAZIL -- 15.4%
   1,211,507   Federal Republic of Brazil, Capitalization Bond(b)(f)..............     8.000     04/15/14       959,362
                                                                                                             ----------
               BULGARIA -- 2.4%
     250,000   Republic of Bulgaria, IAB*.........................................     6.563     07/28/11       150,781
                                                                                                             ----------
               CROATIA -- 3.9%
     250,000   Republic of Croatia, FRN Series A*(f)..............................     6.500     07/30/10       245,156
                                                                                                             ----------
               ECUADOR -- 6.5%
     591,968   Republic of Ecuador, PDI Bond*(b)..................................     6.438     02/27/15       367,390
      53,815   Republic of Ecuador, Registered PDI Bond*(b).......................     6.438     02/27/15        33,399
                                                                                                             ----------
                                                                                                                400,789
                                                                                                             ----------
               MEXICO -- 5.6%
     200,000   United Mexico States, Par Bonds, Series A,
                 including 200,000 attached rights, expiring 06/30/03.............     6.250     12/31/19       153,250
     250,000   United Mexico States, Par Bonds, Series B,
                 including 250,000 attached rights, expiring 06/30/03.............     6.250     12/31/19       191,563
                                                                                                             ----------
                                                                                                                344,813
                                                                                                             ----------
               PANAMA -- 4.7%
     100,000   Republic of Panama, IRB*...........................................     3.500     07/17/14        74,250
     253,515   Republic of Panama, PDI Bond*(b)...................................     6.563     07/17/16       215,488
                                                                                                             ----------
                                                                                                                289,738
                                                                                                             ----------
               PERU -- 4.0%
     400,000   Government of Peru, PDI Bond(c)(e).................................     --        12/29/49       251,250
                                                                                                             ----------
               PHILIPPINES -- 2.0%
     125,000   Republic of the Philippines........................................     8.750     10/07/16       127,031
                                                                                                             ----------
               POLAND -- 4.2%
PLZ1,000,000   Republic of Poland...............................................    12.000     06/12/02         260,433
                                                                                                             ----------
               RUSSIA -- 11.6%
   1,000,000   Russian Government, IAN(c)(e)......................................     --        12/29/49       718,750
                                                                                                             ----------
               VENEZUELA -- 3.7%
     300,000   Republic of Venezuela, Par Bond,
                 including 1,500 attached warrants, expiring 03/31/20.............     6.750     03/31/20       228,750
                                                                                                             ----------
               TOTAL SOVEREIGN BONDS
                 (cost $4,734,888).......................................................................     4,962,260
                                                                                                             ----------
</TABLE>
 
                See accompanying notes to financial statements.
                                       47
 
<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
PORTFOLIO OF INVESTMENTS
FEBRUARY 28, 1997
SALOMON BROTHERS INSTITUTIONAL EMERGING MARKETS DEBT FUND (CONCLUDED)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
PRINCIPAL                                                                          INTEREST    MATURITY      VALUE
AMOUNT(a)                                DESCRIPTION                                RATE         DATE      (NOTE 1a)
- ----------   -------------------------------------------------------------------    ------     --------    ----------
<S>          <C>                                                                   <C>         <C>         <C>
             LOAN PARTICIPATIONS(d) -- 8.3%
             ALGERIA -- 3.0%
   225,000   The Peoples Democratic Republic of Algeria, Tranche A*
               (Chase Manhattan Bank)...........................................     6.910%    09/04/06    $  183,094
             MOROCCO -- 5.3%
   375,000   Kingdom of Morocco, Tranche A*
               (Morgan Guaranty Trust Company)..................................     6.375     01/01/09       330,703
                                                                                                           ----------
             TOTAL LOAN PARTICIPATIONS
               (cost $486,021).........................................................................       513,797
                                                                                                           ----------
             TOTAL INVESTMENTS -- 88.2%
               (cost $5,220,909).......................................................................     5,476,057
             Other assets in excess of liabilities -- 11.8%............................................       734,566
                                                                                                           ----------
             NET ASSETS -- 100.0%......................................................................    $6,210,623
                                                                                                           ----------
                                                                                                           ----------
</TABLE>
 
FORWARD FOREIGN CURRENCY CONTRACT
 
<TABLE>
<CAPTION>
                                          MATURITY           CONTRACT TO    IN EXCHANGE    CONTRACT AT     UNREALIZED
                                            DATE               DELIVER          FOR           VALUE       DEPRECIATION
                                          --------           -----------    -----------    -----------    ------------
 
<S>                                       <C>         <C>    <C>            <C>            <C>            <C>
Sales                                     03/21/97    DEM      162,500        $96,070        $96,425         $ (355)
</TABLE>
 
  *  Interest rate shown reflects current rate  on instrument with variable rate
     or step coupon rate.
 (a) Principal denominated in U.S. dollars unless otherwise indicated.
 (b) Payment-in-kind security for which  all or part of  the interest earned  is
     paid by the issuance of additional bonds.
 (c) When   and  if  issued.  Security  issued  pursuant  to  the  corresponding
     government's Brady Plan debt restructuring. The investment advisor believes
     that the  Brady  Plan will  be  finalized  and the  related  bonds  issued.
     Accordingly,  the Fund has marked-to-market its investment in this security
     at year end.
 (d) Participation interests were  acquired through  the financial  institutions
     indicated parenthetically.
 (e) Non-income producing security.
 (f) Held in segregated account for when and if issued securities.
 
Abbreviations used in this statement:
 
DEM -- German Deutschemark
FRN -- Floating Rate Notes
IAB -- Interest Arrears Bonds
IAN -- Interest Arrears Notes
IRB -- Interest Reduction Bonds
PDI -- Past Due Interest
PLZ -- Polish Zloty
 
                See accompanying notes to financial statements.
                                       48


<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
PORTFOLIO OF INVESTMENTS
FEBRUARY 28, 1997
SALOMON BROTHERS INSTITUTIONAL ASIA GROWTH FUND
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                          VALUE
 SHARES                                            DESCRIPTION                                          (NOTE 1a)
- ---------   -----------------------------------------------------------------------------------------   ----------
 
<S>         <C>                                                                                         <C>
            COMMON STOCKS -- 94.8%
            HONG KONG -- 33.8%
   30,000   Asia Satellite Telecommunications Holdings*..............................................   $   79,032
   72,000   ASM Pacific Technology...................................................................       59,971
    9,360   Bank of East Asia Hong Kong..............................................................       34,146
   12,000   Cheung Kong..............................................................................      114,674
   33,000   Cheung Kong Infrastructure*..............................................................       93,327
   85,000   China Resources Beijing Land*............................................................       48,297
   59,000   China Resources Enterprises..............................................................      132,572
   42,000   Cosco Pacific............................................................................       58,577
   11,000   Dickson Concepts International...........................................................       40,200
   68,000   First Pacific............................................................................       95,277
   38,000   Giordano Holdings........................................................................       26,990
   86,000   Guang Nan Holdings.......................................................................      121,053
    4,400   HSBC Holdings............................................................................      107,391
   18,000   Hutchison Whampoa........................................................................      137,144
   11,000   Hysan Development........................................................................       37,928
   44,000   Kerry Properties*........................................................................      113,641
   52,000   Lai Sun Development......................................................................       77,896
   11,000   New World Development....................................................................       68,184
  100,000   Qingling Motors..........................................................................       60,695
   22,000   Shanghai Industrial Holdings*............................................................       94,322
  106,000   Shanghai Petrochemical...................................................................       30,115
  104,000   USI Holdings.............................................................................       40,291
                                                                                                        ----------
                                                                                                         1,671,723
                                                                                                        ----------
            INDIA -- 12.0%
    6,500   Arvind Mills -- GDR......................................................................       32,500
    9,700   Gujarat Ambuja Cements -- GDR............................................................       85,118
    3,000   Hindalco Industries -- GDR...............................................................       79,950
    7,200   Industrial Credit & Investment -- GDR....................................................       71,100
    8,400   Mahindra & Mahindra -- GDR...............................................................      103,740
    3,000   Reliance Industries -- GDR...............................................................       51,150
    5,150   State Bank of India -- GDR...............................................................      103,000
    5,500   Tata Engineering & Locomotive -- GDR.....................................................       68,750
                                                                                                        ----------
                                                                                                           595,308
                                                                                                        ----------
            INDONESIA -- 4.0%
   20,000   Lippo Karawachi*(a)......................................................................       29,614
   24,500   PT Indostat(a)...........................................................................       69,234
   14,500   PT Inti Indorayon Utama(a)...............................................................       10,130
   68,000   PT Lippo Life Insurance(a)...............................................................       86,507
                                                                                                        ----------
                                                                                                           195,485
                                                                                                        ----------
</TABLE>
 
                See accompanying notes to financial statements.
                                       49
 
<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
PORTFOLIO OF INVESTMENTS
FEBRUARY 28, 1997
SALOMON BROTHERS INSTITUTIONAL ASIA GROWTH FUND (CONTINUED)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                                                          VALUE
 SHARES                                            DESCRIPTION                                          (NOTE 1a)
- ---------   -----------------------------------------------------------------------------------------   ----------
<S>         <C>                                                                                         <C>
            KOREA -- 6.1%
    9,000   Commercial Bank of Korea.................................................................   $   47,708
    1,007   Deasung Industrial.......................................................................       53,380
    2,450   Dong Ah Construction.....................................................................       53,027
    2,266   Korea Mobile Telecommunications -- ADR...................................................       28,325
    2,400   LG Electronics...........................................................................       30,833
    1,020   LG Information & Communication...........................................................       85,590
                                                                                                        ----------
                                                                                                           298,863
                                                                                                        ----------
            MALAYSIA -- 12.8%
    6,000   Ekran....................................................................................       21,506
   18,000   IJM, Class A.............................................................................       48,208
   41,000   IOI......................................................................................       73,975
   12,000   Kian Joo Can Factory.....................................................................       56,545
   20,000   Leader Universal Holdings................................................................       42,690
    9,000   Malakoff.................................................................................       41,683
   26,000   MBM Resources............................................................................       80,105
   44,000   Pernas International Holdings............................................................       54,225
   10,000   Rashid Hussein...........................................................................       80,950
   42,000   Renong...................................................................................       76,456
    6,000   United Engineers.........................................................................       55,336
                                                                                                        ----------
                                                                                                           631,679
                                                                                                        ----------
            PAKISTAN -- 1.0%
    2,860   Pakistan State Oil.......................................................................       22,228
      400   Pakistan Telecommunications -- GDR.......................................................       29,000
                                                                                                        ----------
                                                                                                            51,228
                                                                                                        ----------
            PHILIPPINES -- 3.4%
   88,000   Ayala Land, Series B.....................................................................      105,274
  110,000   Belle*...................................................................................       35,091
   45,000   Pilipino Telephone.......................................................................       29,053
                                                                                                        ----------
                                                                                                           169,418
                                                                                                        ----------
            SINGAPORE -- 10.5%
    4,000   Cycle & Carriage.........................................................................       42,090
   10,000   Elec & Eltek International...............................................................       49,400
    6,500   Hong Leong Finance(a)....................................................................       25,079
   60,000   Noble Group(b)...........................................................................       52,800
   13,000   Sembawang................................................................................       71,133
    1,500   Singapore Press Holdings(a)..............................................................       29,253
   11,500   United Overseas Bank(a)..................................................................      130,691
   36,000   Wing Tai Holdings........................................................................      118,190
                                                                                                        ----------
                                                                                                           518,636
                                                                                                        ----------
</TABLE>
 
                See accompanying notes to financial statements.
                                       50
 
<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
PORTFOLIO OF INVESTMENTS
FEBRUARY 28, 1997
SALOMON BROTHERS INSTITUTIONAL ASIA GROWTH FUND (CONTINUED)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                                                          VALUE
 SHARES                                            DESCRIPTION                                          (NOTE 1a)
- ---------   -----------------------------------------------------------------------------------------   ----------
<C>         <S>                                                                                         <C>
            SRI LANKA -- 0.4%
   99,000   Asia Capital*............................................................................   $   13,343
   15,500   United Motors Lanka......................................................................        7,817
                                                                                                        ----------
                                                                                                            21,160
                                                                                                        ----------
            TAIWAN -- 7.1%
   18,000   Accton Technology*.......................................................................       77,834
    7,000   Cathay Life Insurance....................................................................       45,531
   19,000   Formosa Plastics.........................................................................       51,090
   74,000   Pacific Construction*....................................................................       72,602
   10,000   Umax Data Systems........................................................................       59,593
   32,800   Yang Ming Marine Transport...............................................................       44,695
                                                                                                        ----------
                                                                                                           351,345
                                                                                                        ----------
            THAILAND -- 3.8%
    8,750   Bangkok Bank.............................................................................       59,471
    7,400   Dhana Siam Finance(a)....................................................................       13,503
    9,000   Property Perfect(a)......................................................................        9,558
    7,000   Singer Thailand..........................................................................       27,573
   11,000   Thai Farmers Bank........................................................................       47,152
   24,300   Thai Telephone & Telecommunications*(a)..................................................       23,929
                                                                                                        ----------
                                                                                                           181,186
                                                                                                        ----------
            TOTAL COMMON STOCKS
              (cost $4,441,776)......................................................................    4,686,031
                                                                                                        ----------
            WARRANTS AND RIGHTS -- 2.2%*
  100,000   China Resources Enterprises Warrants (expiring 08/28/97).................................       14,722
1,030,000   China H Shares, Call Warrants (expiring 04/02/98)........................................       11,971
  600,000   Guangdong Investment Warrants (expiring 11/27/97)........................................       17,743
   11,142   Guangnan Warrants (expiring 08/31/98)....................................................        7,266
  900,000   Hong Kong Telecom Warrants (expiring 01/09/98)...........................................       13,366
  210,000   Hutchison Call Warrants (expiring 12/30/97)..............................................       16,271
  270,000   Lai Sun Development Call Warrants (expiring 11/13/97)....................................        7,357
    4,995   PT Indah Kiat Pulp & Paper Warrants (expiring 04/13/01)..................................        1,833
   70,000   Shanghai & Shenzen Warrants (expiring 11/20/97)..........................................       13,650
   12,150   Thai Telephone & Telecommunications Rights (expiring 12/31/99)(b)........................        7,273
                                                                                                        ----------
            TOTAL WARRANTS AND RIGHTS
              (cost $77,623).........................................................................      111,452
                                                                                                        ----------
</TABLE>
 
                See accompanying notes to financial statements.
                                       51
 
<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
PORTFOLIO OF INVESTMENTS
FEBRUARY 28, 1997
SALOMON BROTHERS INSTITUTIONAL ASIA GROWTH FUND (CONCLUDED)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                                                          VALUE
CONTRACTS                                          DESCRIPTION                                          (NOTE 1a)
- ---------   -----------------------------------------------------------------------------------------   ----------
<S>         <C>                                                                                         <C>
            PURCHASED OPTION -- 0.3%*
            HONG KONG -- 0.3%
      237   Hang Seng Index OTC Put (expiring 4/2/97, exercise price 13,500 HKD) (cost $16,552)......   $   13,313
                                                                                                        ----------
            TOTAL INVESTMENTS -- 97.3%
              (cost $4,535,951)......................................................................    4,810,796
            Other assets in excess of liabilities -- 2.7%............................................      131,298
                                                                                                        ----------
            NET ASSETS -- 100.0%.....................................................................   $4,942,094
                                                                                                        ----------
                                                                                                        ----------
</TABLE>
 
 * Non-income producing security.
(a) Foreign Shares
(b) Securities  fair valued under procedures adopted  by the Board of Directors.
    At February 28, 1997, total securities  fair valued in this manner  amounted
    to $60,073 (1.2% of Net Assets).
 
Abbreviations used in this statement:
 
ADR -- American Depository Receipt
GDR -- Global Depository Receipt
HKD -- Hong Kong Dollar
OTC -- Over The Counter
THB -- Thai Baht
 
                See accompanying notes to financial statements.
                                       52
<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
STATEMENTS OF ASSETS AND LIABILITIES
FEBRUARY 28, 1997
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                           EMERGING
                                                                            HIGH YIELD     MARKETS      ASIA GROWTH
                                                                            BOND FUND     DEBT FUND        FUND
                                                                            ----------    ----------    -----------
 
<S>                                                                         <C>           <C>           <C>
ASSETS:
    Investments, at value (Note A).......................................   $6,254,163    $5,476,057    $ 4,810,796
    Cash and foreign currency............................................      220,017     1,646,457         14,421
    Receivable for securities sold.......................................      110,600       272,500        --
    Interest and dividends receivable....................................      143,021        92,699          3,724
    Receivable from investment advisor...................................      147,817       133,188        205,537
    Deferred organization expense........................................       53,648        59,062         65,950
                                                                            ----------    ----------    -----------
         Total assets....................................................    6,929,266     7,679,963      5,100,428
                                                                            ----------    ----------    -----------
LIABILITIES:
  Payable for:
    Securities purchased.................................................      299,350     1,410,938         82,528
    Unrealized depreciation of forward foreign currency contracts........      --                355             33
    Accrued expenses.....................................................       55,131        58,047         75,773
                                                                            ----------    ----------    -----------
         Total liabilities...............................................      354,481     1,469,340        158,334
                                                                            ----------    ----------    -----------
NET ASSETS...............................................................   $6,574,785    $6,210,623    $ 4,942,094
                                                                            ----------    ----------    -----------
                                                                            ----------    ----------    -----------
NET ASSETS CONSIST OF:
    Paid-in capital......................................................   $6,044,848    $5,662,826    $ 4,511,315
    Undistributed net investment income..................................      126,298        85,215         15,493
    Accumulated net realized gain on investments, options and foreign
      currency transactions..............................................      170,305       210,879        140,381
    Net unrealized appreciation on investments, foreign currency
      transactions and other assets......................................      233,334       251,703        274,905
                                                                            ----------    ----------    -----------
NET ASSETS...............................................................   $6,574,785    $6,210,623    $ 4,942,094
                                                                            ----------    ----------    -----------
                                                                            ----------    ----------    -----------
SHARES OUTSTANDING.......................................................      590,907       569,293        454,720
                                                                            ----------    ----------    -----------
                                                                            ----------    ----------    -----------
NET ASSET VALUE PER SHARE................................................   $    11.13    $    10.91    $     10.87
                                                                            ----------    ----------    -----------
                                                                            ----------    ----------    -----------
Note A: Cost of investments..............................................   $6,020,829    $5,220,909    $ 4,535,951
                                                                            ----------    ----------    -----------
                                                                            ----------    ----------    -----------
</TABLE>
 
                See accompanying notes to financial statements.
                                       53
 
<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
STATEMENTS OF OPERATIONS
FOR THE PERIOD ENDED FEBRUARY 28, 1997(a)(b)(c)
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                               HIGH       EMERGING
                                                                               YIELD       MARKETS     ASIA GROWTH
                                                                             BOND FUND    DEBT FUND       FUND
                                                                             ---------    ---------    -----------
 
<S>                                                                          <C>          <C>          <C>
INCOME:
    Interest..............................................................   $425,126     $212,032      $   6,311
    Dividends (Note A)....................................................      --           --            38,940
                                                                             ---------    ---------     ---------
                                                                              425,126      212,032         45,251
EXPENSES:
    Management fee........................................................     21,438       15,317         21,437
    Custody, administration and shareholder servicing fees................    125,875       99,585        180,163
    Audit and tax return preparation fees.................................     20,001       15,000         19,999
    Printing..............................................................     18,000        1,000         25,000
    Amortization of organization expenses.................................     10,130        4,716         12,914
    Legal.................................................................      9,999       13,001         10,000
    Registration and filing fees..........................................      9,559       10,300          9,500
    Directors' fees and expenses..........................................      5,209        3,332          5,209
    Other.................................................................      3,501        3,500          1,998
                                                                             ---------    ---------     ---------
                                                                              223,712      165,751        286,220
    Management fee waived and expenses absorbed by investment advisor.....   (169,255)    (148,505)      (226,974)
    Credits earned on cash balances and fees waived by custodian..........    (30,875)        (885)       (30,663)
                                                                             ---------    ---------     ---------
    Net expenses..........................................................     23,582       16,361         28,583
                                                                             ---------    ---------     ---------
NET INVESTMENT INCOME.....................................................    401,544      195,671         16,668
                                                                             ---------    ---------     ---------
REALIZED AND UNREALIZED GAIN (LOSS):
  Net realized gain (loss) on:
    Investments (Note B)..................................................    179,876      221,919        177,989
    Options written.......................................................      --           --               172
    Foreign currency transactions.........................................      --           --            (5,809)
                                                                             ---------    ---------     ---------
                                                                              179,876      221,919        172,352
                                                                             ---------    ---------     ---------
  Net change in unrealized appreciation (depreciation) on:
    Investments...........................................................    233,334      255,148        274,845
    Foreign currency transactions and other assets........................      --          (3,445)            60
                                                                             ---------    ---------     ---------
                                                                              233,334      251,703        274,905
                                                                             ---------    ---------     ---------
NET REALIZED AND UNREALIZED GAIN..........................................    413,210      473,622        447,257
                                                                             ---------    ---------     ---------
NET INCREASE IN NET ASSETS FROM OPERATIONS................................   $814,754     $669,293      $ 463,925
                                                                             ---------    ---------     ---------
                                                                             ---------    ---------     ---------
Note A: Net of foreign withholding tax of.................................   $  --        $  --         $   3,902
                                                                             ---------    ---------     ---------
                                                                             ---------    ---------     ---------
Note B: Net of tax on capital gains of....................................   $  --        $  --         $   1,492
                                                                             ---------    ---------     ---------
                                                                             ---------    ---------     ---------
</TABLE>
 
- ------------
 
(a) The High Yield Bond Fund's commencement of investment operations was May 15,
    1996.
 
(b) The  Emerging Markets Debt Fund's  commencement of investment operations was
    October 17, 1996.
 
(c) The Asia  Growth Fund's  commencement of  investment operations  was May  6,
    1996.
 
                See accompanying notes to financial statements.
                                       54
 
<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
STATEMENTS OF CHANGES IN NET ASSETS
FOR THE PERIOD ENDED FEBRUARY 28, 1997(a)(b)(c)
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                           EMERGING
                                                                           HIGH YIELD       MARKETS      ASIA GROWTH
                                                                            BOND FUND      DEBT FUND        FUND
                                                                           -----------    -----------    -----------
 
<S>                                                                        <C>            <C>            <C>
OPERATIONS:
    Net investment income...............................................   $   401,544    $   195,671    $    16,668
    Net realized gain on investments, options, and foreign currency
      transactions......................................................       179,876        221,919        172,352
    Net change in unrealized appreciation on investments, foreign
      currency transactions and other assets............................       233,334        251,703        274,905
                                                                           -----------    -----------    -----------
    Net increase in net assets from operations..........................       814,754        669,293        463,925
                                                                           -----------    -----------    -----------
DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS:
    Dividends from net investment income................................      (275,246)      (110,456)       (16,532)
    Distributions from net realized gains...............................        (9,571)       (11,040)       (16,614)
                                                                           -----------    -----------    -----------
                                                                              (284,817)      (121,496)       (33,146)
                                                                           -----------    -----------    -----------
CAPITAL SHARE TRANSACTIONS:
    Proceeds from sales of shares.......................................    10,905,307      8,800,000      6,600,000
    Net asset value of shares issued in reinvestment of dividends.......       284,817        121,496         33,146
    Payment for redemption of shares....................................    (5,178,606)    (3,292,000)    (2,155,171)
                                                                           -----------    -----------    -----------
    Change in net assets resulting from capital share transactions......     6,011,518      5,629,496      4,477,975
                                                                           -----------    -----------    -----------
NET INCREASE IN NET ASSETS..............................................     6,541,455      6,177,293      4,908,754
                                                                           -----------    -----------    -----------
NET ASSETS:
    Beginning of period.................................................        33,330         33,330         33,340
                                                                           -----------    -----------    -----------
    End of period*......................................................   $ 6,574,785    $ 6,210,623    $ 4,942,094
                                                                           -----------    -----------    -----------
                                                                           -----------    -----------    -----------
    * Including undistributed net investment income of..................   $   126,298    $    85,215    $    15,493
                                                                           -----------    -----------    -----------
                                                                           -----------    -----------    -----------
</TABLE>
 
- ------------
 
(a) The High Yield Bond Fund's commencement of investment operations was May 15,
    1996.
 
(b) The  Emerging Markets Debt Fund's  commencement of investment operations was
    October 17, 1996.
 
(c) The Asia  Growth Fund's  commencement of  investment operations  was May  6,
    1996.
 
                See accompanying notes to financial statements.
                                       55


<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
FINANCIAL HIGHLIGHTS
FOR THE PERIOD ENDED FEBRUARY 28, 1997(A)(B)(C)
 
SELECTED DATA PER SHARE OF CAPITAL STOCK OUTSTANDING THROUGHOUT THE PERIOD:
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                     HIGH           EMERGING
                                                                     YIELD           MARKET          ASIA GROWTH
                                                                   BOND FUND        DEBT FUND           FUND
                                                                   ---------        ---------        -----------
<S>                                                                <C>              <C>              <C>
Net asset value, beginning of period............................    $ 10.00          $ 10.00           $ 10.00
                                                                    -------          -------           -------
    Net investment income.......................................       0.57             0.35              0.04
    Net gain on investments (both realized and unrealized)......       0.93             0.78              0.91
                                                                    -------          -------           -------
         Total from investment operations.......................       1.50             1.13              0.95
                                                                    -------          -------           -------
    Dividends from net investment income........................     (0.36)           (0.20)             (0.04)
    Distributions from net realized gain on investments.........     (0.01)           (0.02)             (0.04)
                                                                    -------          -------           -------
         Total dividends and distributions......................     (0.37)           (0.22)             (0.08)
                                                                    -------          -------           -------
Net asset value, end of period..................................    $ 11.13          $ 10.91           $ 10.87
                                                                    -------          -------           -------
                                                                    -------          -------           -------
Net assets, end of period (thousands)...........................    $ 6,575          $ 6,211           $ 4,942
Total return*...................................................      +15.1%           +11.4%             +9.6%
Ratios to average net assets:
    Expenses....................................................       0.55%**          0.75%**           1.00%**
    Net investment income.......................................       9.36%**          8.94%**           0.58%**
Portfolio turnover rate.........................................        151%             136%              133%
Average Broker Commission Rate..................................        N/A              N/A           $0.0052
Before waiver of management fee, expenses absorbed by SBAM and
  credits earned from and fees waived by the custodian, net
  investment income (loss) per share and expense ratios would
  have been:
    Net investment income (loss) per share......................      $0.29            $0.08            ($0.59)
    Expense ratio...............................................       5.22%**          7.57%**          10.03%**
</TABLE>
 
- ------------
 (a) The  High Yield Bond  Fund's commencement of  investment operations was May
     15, 1996.
 (b) The Emerging Markets Debt Fund's commencement of investment operations  was
     October 17, 1996.
 (c) The  Asia Growth  Fund's commencement of  investment operations  was May 6,
     1996.
  * Total return is calculated assuming a $1,000 investment on the first day  of
    each  period reported, reinvestment of all  dividends at the net asset value
    on the ex-dividend date, and  a sale at net asset  value on the last day  of
    each  period reported. Total return calculated for a period of less than one
    year is not annualized.
 ** Annualized.
 
                                       56


<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------
 
1. ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES
 
The Salomon Brothers Institutional High Yield Bond Fund (the 'High Yield Bond
Fund'), Salomon Brothers Institutional Asia Growth Fund (the 'Asia Growth Fund')
and Salomon Brothers Institutional Emerging Markets Debt Fund (the 'Emerging
Markets Debt Fund') are portfolios of the Salomon Brothers Institutional Series
Funds Inc (the 'Institutional Series'). The Institutional Series is an open-end
investment company incorporated in Maryland on January 19, 1996. Each Fund has a
specific investment objective: the High Yield Bond Fund's objective is to
maximize total return by investing primarily in a portfolio of high yield
fixed-income securities that offer a yield above that generally available on
debt securities in the four highest rating categories of the recognized rating
services; the Emerging Markets Debt Fund's objective is to maximize total return
by investing primarily in debt securities of government, government related and
corporate issuers located in emerging market countries; the Asia Growth Fund's
objective is to seek long-term capital appreciation.
 
Salomon Brothers Asset Management Inc ('SBAM'), the Fund's investment manager,
purchased 3,333 shares of the High Yield Bond Fund and Emerging Markets Debt
Fund and 3,334 shares of the Asia Growth Fund on March 21, 1996. The Asia Growth
Fund and High Yield Bond Fund began offering shares to investors on May 6, 1996
and May 15, 1996, respectively, and the Emerging Markets Debt Fund began
accepting shareholder subscriptions on October 17, 1996.
 
The following is a summary of significant accounting policies followed by the
Institutional Series in the preparation of its financial statements. The
policies are in conformity with generally accepted accounting principles
('GAAP'). The preparation of financial statements in accordance with GAAP
requires management to make estimates of certain reported amounts in the
financial statements. Actual amounts could differ from those estimates.
 
     (a) INVESTMENT VALUATION. Portfolio securities listed or traded on national
     securities exchanges, or reported on the NASDAQ national market system, are
     valued at the last sale price, or if there have been no sales on that day,
     at the mean of the current bid and asked price which represents the current
     value of the security. Over-the-counter securities are valued at the mean
     of the current bid and asked price. Debt securities are valued by using
     either market quotations or independent pricing services which use prices
     provided by market-makers or estimates of market values obtained from yield
     data relating to instruments or securities with similar characteristics.
     Publicly traded sovereign bonds are typically traded internationally on the
     over-the-counter market and are valued at the mean of the last current bid
     and asked price as of the close of business of that market. Short-term
     securities with less than 60 days remaining to maturity when acquired by a
     Fund are valued at amortized cost which approximates market value. If a
     Fund acquires such securities with more than 60 days remaining to maturity,
     they will be valued at current market value (using the bid price), until
     the 60th day prior to maturity, and will then be valued on an amortized
     cost basis.
 
     Prior governmental approval for foreign investments may be required under
     certain circumstances in some emerging market countries, and the extent of
     foreign investment in domestic companies may be subject to limitation in
     other emerging market countries. Foreign ownership limitations also may be
     imposed by the charters of individual companies in emerging market
     countries to prevent, among other concerns, violation of foreign investment
     limitations. As a result, an additional class of shares (identified as
     'Foreign Shares' in the Portfolio of Investments) may be created and
     offered for investment. The 'local' and 'foreign' shares' market values may
     differ.
 
     Foreign securities quoted in a foreign currency are translated into U.S.
     dollars using exchange rates at 2:30 p.m. Eastern time (12:30 p.m. for the
     Asia Growth Fund), or at such other rates as SBAM may determine to be
     appropriate in computing net asset value.
                                       57
 
<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
 
     Securities for which reliable quotations or prices from pricing services
     are not readily available (as may be the case for securities of limited
     marketability) and all other assets are valued at their respective fair
     value as determined in good faith by, or under procedures established by,
     the Board of Directors.
 
     (b) OPTION CONTRACTS. When a Fund writes or purchases a call or a put
     option, an amount equal to the premium received or paid by the Fund is
     recorded as a liability or asset, the value of which is marked-to-market
     daily to reflect the current market value of the option. When the option
     expires, the Fund realizes a gain or loss equal to the amount of the
     premium received or paid. When the Fund exercises an option or enters into
     a closing transaction by purchasing or selling an offsetting option, it
     realizes a gain or loss without regard to any unrealized gain or loss on
     the underlying security. When a written call option is exercised, the Fund
     realizes a gain or loss from the sale of the underlying security and the
     proceeds from such sale are increased by the premium originally received.
     When a written put option is exercised, the amount of the premium received
     reduces the cost of the security that the Fund purchased upon exercise of
     the option.
 
     (c) REPURCHASE AGREEMENTS. When entering into repurchase agreements, it is
     each Fund's policy that the Fund take possession, through its custodian, of
     the underlying collateral and monitor the collateral's value at the time
     the agreement is entered into and on a daily basis during the term of the
     repurchase agreement to ensure that it equals or exceeds the repurchase
     price. In the event of default or bankruptcy by the other party to the
     agreement, realization and/or retention of the collateral may be subject to
     legal proceedings.
 
     (d) FOREIGN CURRENCY TRANSLATION. The accounting records of each Fund are
     maintained in U.S. dollars. Investment securities and other assets and
     liabilities of the Funds denominated in a foreign currency are translated
     into U.S. dollars at the prevailing rates of exchange each day. Purchases
     and sales of securities, income receipts and expense payments are
     translated into U.S. dollars at the prevailing exchange rate on the
     respective dates of the transactions. Net realized gains and losses on
     foreign currency transactions represent net gains and losses from sales and
     maturities of forward currency contracts, disposition of foreign
     currencies, currency gains and losses realized between the trade and
     settlement dates on securities transactions and the difference between the
     amount of net investment income accrued and the U.S. dollar amount actually
     received. The effect of changes in foreign currency exchange rates on
     investments in securities are not segregated in the Statements of
     Operations from the effects of changes in market prices of those
     securities, but are included with the net realized and unrealized gain or
     loss on investments.
 
     (e) FORWARD FOREIGN CURRENCY CONTRACTS. Each Fund may enter into forward
     foreign currency contracts in connection with planned purchases or sales of
     securities or to hedge the value of portfolio securities. A forward foreign
     currency contract is an agreement between two parties to buy and sell a
     currency at a set price on a future date. The contract is marked-to-market
     daily and the change in value is recorded by the Fund as an unrealized gain
     or loss. When a forward foreign currency contract is extinguished, through
     either delivery or offset by entering into another forward foreign currency
     contract, the Fund records a realized gain or loss equal to the difference
     between the value of the contract at the time it was opened and the value
     of the contract at the time it was extinguished or offset.
 
     (f) FEDERAL INCOME TAXES. Each Fund intends to comply with the requirements
     of the Internal Revenue Code applicable to regulated investment companies
     by distributing all of its income, including any net realized gains, to
     shareholders. Therefore, no Federal income tax or excise tax provision is
     required.
 
     The Asia Growth Fund may be subject to taxes imposed by countries in which
     it invests. Such taxes are generally based on income and/or capital gains
     earned or repatriated. Taxes are
                                       58
 
<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
 
     accrued and applied to net investment income, net realized gains and net
     unrealized appreciation as such income and/or gains are earned.
 
     (g) DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS. Each Fund declares
     dividends from net investment income annually. Distributions of net
     realized gains to shareholders of each Fund, if any, are declared at least
     annually. Dividends and distributions to shareholders of each Fund are
     recorded on the ex-dividend date and are determined in accordance with
     income tax regulations which may differ from GAAP primarily due to
     differences in the treatment of foreign currency gains/losses, treatment of
     gain from passive foreign investment companies ('PFICs'), deferral of wash
     sales, and post-October losses incurred by each Fund. Permanent book/tax
     differences are reclassified within the capital accounts based on their
     federal income tax basis treatment; temporary differences do not require
     reclassifications. Dividends and distributions which exceed net investment
     income and net realized gains for financial reporting purposes but not for
     tax purposes are reported as dividends in excess of net investment income
     and distributions in excess of net realized capital gains.
 
     (h) EXPENSES. Direct expenses are charged to the Fund that incurred them,
     and general expenses of the Institutional Series are allocated to the Funds
     based on each Fund's relative net assets.
 
     (i) ORGANIZATIONAL COSTS. Certain costs incurred in connection with each
     Fund's organization have been deferred and are being amortized by the Funds
     over a 60 month period from the date each Fund commenced investment
     operations. In the event that any of the initial shares purchased by SBAM
     are redeemed, proceeds of such redemption will be reduced by the
     proportionate amount of the unamortized deferred organization costs which
     the number of shares redeemed bears to the total number of initial shares
     purchased.
 
     (j) OTHER. Investment transactions are recorded as of the trade date.
     Dividend income is recorded on the ex-dividend date or on a when-known
     basis for the Asia Growth Fund. Interest income, including the accretion of
     discounts or amortization of premiums, is recognized when earned. Gains or
     losses on sales of securities are calculated for financial accounting and
     Federal income tax purposes on the identified cost basis.
 
2. MANAGEMENT FEE AND OTHER AGREEMENTS
 
Each Fund retains SBAM, an indirect wholly owned subsidiary of Salomon Inc, to
act as investment manager of each Fund, subject to the supervision by the Board
of Directors of the Institutional Series. Among other things, SBAM furnishes the
Funds with office space and certain services and facilities required for
conducting the business of the Funds, and pays the compensation of its officers.
The management fee for these services for each Fund is payable monthly and is
based on the following annual percentages of each Funds' average daily net
assets: .50% for the High Yield Bond Fund, .70% for the Emerging Markets Debt
Fund and .75% for the Asia Growth Fund. SBAM has retained Salomon Brothers Asset
Management Asia Pacific Limited ('SBAM AP'), an affiliate of SBAM, to act as
sub-advisor to the Asia Growth Fund. SBAM AP is compensated by SBAM at no
additional expense to the Asia Growth Fund. Salomon Brothers Asset Management
Limited ('SBAM Limited'), an affiliate of SBAM, provides certain administrative
services to the Asia Growth Fund. For such administrative services, SBAM Limited
is compensated by SBAM at no additional expense to the Asia Growth Fund.
 
For the period ended February 28, 1997, SBAM waived management fees of $21,438,
$15,317 and $21,437 for the High Yield Bond Fund, Emerging Markets Debt Fund and
Asia Growth Fund, respectively, and voluntarily absorbed expenses of $147,817,
$133,188 and $205,537 for the High Yield Bond Fund, Emerging Markets Debt Fund
and Asia Growth Fund, respectively.
                                       59
 
<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
 
Investors Bank & Trust Company ('IBT') serves as custodian, administrator and
shareholder servicing agent for each Fund, which includes performing custodial
and certain administrative services in connection with the operation of each
Fund. IBT agreed to waive a portion of its custody fees through October 31,
1996. In addition, a credit is earned on outstanding cash balances held by the
custodian during each billing period. During the period ended February 28, 1997,
fees of $30,000 were waived by IBT for the High Yield Bond Fund and Asia Growth
Fund and credits of $875, $885 and $663 were earned on outstanding cash balances
of the High Yield Bond Fund, Emerging Markets Debt Fund and Asia Growth Fund,
respectively.
 
3. CAPITAL STOCK
 
At February 28, 1997, the Institutional Series had 10,000,000,000 shares of
authorized capital stock, par value $.001 per share. Transactions in Fund shares
for the period ended February 28, 1997 were as follows:
 
<TABLE>
<CAPTION>
                                                                     HIGH       EMERGING
                                                                     YIELD       MARKETS        ASIA
                                                                   BOND FUND    DEBT FUND    GROWTH FUND
                                                                   ---------    ---------    -----------
<S>                                                                <C>          <C>          <C>
Shares sold.....................................................   1,041,101     868,547       651,672
Shares issued as reinvestment...................................      26,445      11,716         3,224
Shares redeemed.................................................     479,972     314,303       203,510
                                                                   ---------     -------       -------
Net increase....................................................     587,574     565,960       451,386
                                                                   ---------     -------       -------
                                                                   ---------     -------       -------
</TABLE>
 
At February 28, 1997, SBAM owned approximately 40% and 46% of total shares
outstanding of the Emerging Markets Debt Fund and Asia Growth Fund,
respectively.
 
4. PORTFOLIO ACTIVITY
 
Cost of purchases and proceeds from sales of securities, excluding short-term
obligations, for the period ended February 28, 1997, were as follows:
 
<TABLE>
<CAPTION>
                                                                         PURCHASES       SALES
                                                                        -----------    ----------
 
<S>                                                                     <C>            <C>
High Yield Bond Fund.................................................   $13,197,162    $7,403,049
                                                                        -----------    ----------
                                                                        -----------    ----------
Emerging Markets Debt Fund...........................................   $12,554,713    $7,578,906
                                                                        -----------    ----------
                                                                        -----------    ----------
Asia Growth Fund.....................................................   $ 8,953,035    $4,590,308
                                                                        -----------    ----------
                                                                        -----------    ----------
</TABLE>
 
At February 28, 1997, undistributed net investment income and accumulated net
realized gain on investments have been adjusted for current period permanent
book/tax differences which arose principally from differing book/tax treatments
of foreign currency transactions and gains of securities of certain corporations
designated as PFICs. The Asia Growth Fund reclassified $15,357 from accumulated
net realized gain on investments to undistributed net investment income. Net
investment income, net realized gain (loss) on investments and net assets were
not affected by this reclassification.
 
During the year ended February 28, 1997, the Asia Growth Fund and Emerging
Markets Debt Fund have elected to defer to March 1, 1997, Post-October net
foreign currency losses of $1,115
 
                                       60
 
<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
 
and $355, respectively. Cost for Federal income tax purposes and gross
unrealized appreciation and depreciation in value of investments held in each
Fund were as follows:
 
<TABLE>
<CAPTION>
                                                                   GROSS           GROSS
                                                  AGGREGATE      UNREALIZED      UNREALIZED     NET UNREALIZED
                                                     COST       APPRECIATION    DEPRECIATION     APPRECIATION
                                                  ----------    ------------    ------------    --------------
 
<S>                                               <C>           <C>             <C>             <C>
High Yield Bond Fund...........................   $6,020,829      $252,688        $ 19,354         $233,334
Emerging Markets Debt Fund.....................   $5,228,956      $294,010        $ 46,909         $247,101
Asia Growth Fund...............................   $4,556,627      $536,558        $282,389         $254,169
</TABLE>
 
Transactions in options written for the Asia Growth Fund during the period ended
February 28, 1997 were as follows:
 
<TABLE>
<CAPTION>
                                                                           NUMBER OF    PREMIUMS
                                                                           CONTRACTS    RECEIVED
                                                                           ---------    --------
 
<S>                                                                        <C>          <C>
Options written.........................................................     14,000     $  2,344
Options terminated in closing purchase transactions.....................    (14,000)      (2,344)
                                                                            -------     --------
Options outstanding at February 28, 1997................................      --           --
                                                                            -------     --------
                                                                            -------     --------
</TABLE>
 
5. PORTFOLIO INVESTMENT RISKS
 
CREDIT AND MARKET RISK. Funds that invest in emerging markets and high yield
debt instruments are subject to certain credit and market risks. The yields of
debt obligations reflect, among other things, perceived credit risk. Securities
rated below investment grade typically involve risks not associated with higher
rated securities including, among others, greater risk of timely and ultimate
payment of interest and principal, greater market price volatility and less
liquid secondary market trading. The consequences of political, social, economic
or diplomatic changes in emerging markets countries may have disruptive effects
on the market prices of investments held by the Funds.
 
The Funds' investment in non-dollar denominated securities may also result in
foreign currency losses caused by devaluations and exchange rate fluctuations.
Foreign securities and currency transactions involve certain considerations and
risks not typically associated with those of U.S. dollar denominated
transactions as a result of, among other factors, the possibility of lower
levels of governmental supervision and regulation of foreign securities markets
and the possibility of political or economic instability.
 
FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET RISK. Each Fund may enter into
forward foreign currency contracts ('forward contracts') to facilitate
settlement of foreign currency denominated portfolio transactions or to manage
foreign currency exposure associated with foreign currency denominated
securities. Forward contracts involve elements of market risk in excess of the
amounts reflected in the Statements of Assets and Liabilities. The Funds bear
the risk of an unfavorable change in the foreign exchange rate underlying the
forward contract. Risks may also arise upon entering into these contracts from
the potential inability of the counterparties to meet the terms of their
contracts.
 
The High Yield Bond Fund and Emerging Markets Debt Fund may invest in
instruments whose values and interest rates may be linked to foreign currencies,
interest rates, indices or some other financial indicator. The value at maturity
or interest rates for these instruments will increase or decrease according to
the change in the indicator to which it is indexed. These securities are
generally more volatile in nature and the risk of loss of principal is greater.
 
A risk in writing a covered call option is that the Fund may forego the
opportunity of profit if the market price of the underlying security increases
and the option is exercised. A risk in writing a put option is that the Fund may
incur a loss if the market price of the underlying security decreases and the
option is exercised. In addition, there is the risk that the Fund may not be
able to enter into a closing transaction because of an illiquid secondary
market.
 
                                       61


<PAGE>
<PAGE>
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
REPORT OF INDEPENDENT ACCOUNTANTS
- --------------------------------------------------------------------------------
 
To the Board of Directors and Shareholders of
SALOMON BROTHERS INSTITUTIONAL SERIES FUNDS INC
 
In our opinion, the accompanying statements of assets and liabilities, including
the portfolios of investments, and the related statements of operations and of
changes in net assets and the financial highlights present fairly, in all
material respects, the financial position of the Salomon Brothers Institutional
High Yield Bond Fund, Salomon Brothers Institutional Emerging Markets Debt Fund
and Salomon Brothers Institutional Asia Growth Fund (constituting Salomon
Brothers Institutional Series Funds Inc, hereafter referred to as the 'Fund') at
February 28, 1997, and the results of each of their operations, the changes in
each of their net assets, and the financial highlights for each of the periods
indicated, in conformity with generally accepted accounting principles. These
financial statements and financial highlights (hereafter referred to as
'financial statements') are the responsibility of the Fund's management; our
responsibility is to express an opinion on these financial statements based on
our audit. We conducted our audit of these financial statements in accordance
with generally accepted auditing standards which require that we plan and
perform the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements, assessing the accounting principles used and significant estimates
made by management, and evaluating the overall financial statement presentation.
We believe that our audit, which included confirmation of securities at February
28, 1997 by correspondence with the custodian and brokers and the application of
alternative auditing procedures where confirmations from brokers were not
received, provides a reasonable basis for the opinion expressed above.
 
Price Waterhouse LLP
1177 Avenue of the Americas
New York, New York 10036
April 11, 1997

                                       62


<PAGE>



© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission