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AIM INVESTMENT SECURITIES FUNDS
AIM LIMITED MATURITY TREASURY FUND
INSTITUTIONAL CLASS
Supplement dated October 2, 1998
to the Prospectus dated November 28, 1997
The following paragraph replaces in its entirety the paragraph under
the caption "MANAGEMENT OF THE TRUST - Portfolio Management" on page 12 of the
prospectus:
"PORTFOLIO MANAGEMENT.
AIM uses a team approach and disciplined investment strategy in
providing investment advisory services to all its accounts, including the Fund.
AIM's investment staff consists of approximately 125 individuals. While
individual members of AIM's investment staff are assigned primary
responsibility for the day-to-day management of each of AIM's accounts, all
accounts are reviewed on a regular basis by AIM's Investment Policy Committee
to ensure that they are being invested in accordance with the accounts' and
AIM's investment policies. The individuals on the investment team who are
primarily responsible for the day-to-day management of the Fund are Scot W.
Johnson, Karen Dunn Kelley and Marcel S. Theriot. Mr. Johnson is Vice President
of A I M Capital Management, Inc. ("AIM Capital"), a wholly owned subsidiary of
AIM, and has been responsible for the Fund since 1998. He has been associated
with AIM since 1994 and has been an investment professional since 1994. Prior
to 1994 he attended Vanderbilt University. Ms. Kelley is Senior Vice President
of AIM Capital; Vice President of AIM and of the Trust; and has been
responsible for the Fund since 1992. Ms. Kelley has been associated with AIM
since 1989 and has a total of 15 years of experience as an investment
professional. Mr. Theriot is an investment officer of AIM Capital and has been
responsible for the Fund since 1998. He has been associated with AIM and/or its
subsidiaries since 1994 and has been an investment professional since 1994.
Prior to 1994 he was a Service Marketing Representative with Van Kampen
American Capital Asset Management, Inc."
