<PAGE> 1
SHORT-TERM INVESTMENTS CO.
LIQUID ASSETS PORTFOLIO
CASH MANAGEMENT CLASS
Supplement dated July 1, 1999
to the Prospectus dated December 18, 1998
The sixth full paragraph located under the heading entitled "INVESTMENT PROGRAM
- - INVESTMENT POLICIES" on page 6 of the prospectus should be deleted in its
entirety and replaced with the following two paragraphs:
"The Portfolio may invest up to 50% of its total assets
in U.S. dollar-denominated securities of foreign issuers.
The Portfolio may invest up to 100% of its total assets in obligations
issued by banks. While the Portfolio will limit its investments in bank
instruments to U.S. dollar-denominated obligations, it may invest in
Eurodollar obligations (i.e., U.S. dollar-denominated obligations
issued by a foreign branch of a domestic bank), Yankee dollar
obligations (i.e., U.S. dollar-denominated obligations issued by a
domestic branch of a foreign bank) and obligations of foreign branches
of foreign banks, including time deposits."
<PAGE> 2
SHORT-TERM INVESTMENTS CO.
LIQUID ASSETS PORTFOLIO
INSTITUTIONAL CLASS
Supplement dated July 1, 1999
to the Prospectus dated December 18, 1998
The sixth full paragraph located under the heading entitled "INVESTMENT PROGRAM
- - INVESTMENT POLICIES" on page 6 of the prospectus should be deleted in its
entirety and replaced with the following two paragraphs:
"The Portfolio may invest up to 50% of its total assets
in U.S. dollar-denominated securities of foreign issuers.
The Portfolio may invest up to 100% of its total assets in obligations
issued by banks. While the Portfolio will limit its investments in bank
instruments to U.S. dollar-denominated obligations, it may invest in
Eurodollar obligations (i.e., U.S. dollar-denominated obligations
issued by a foreign branch of a domestic bank), Yankee dollar
obligations (i.e., U.S. dollar-denominated obligations issued by a
domestic branch of a foreign bank) and obligations of foreign branches
of foreign banks, including time deposits."
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PERSONAL INVESTMENT CLASS
OF THE
LIQUID ASSETS PORTFOLIO
OF
SHORT-TERM INVESTMENTS CO.
Supplement dated July 1, 1999
to the Prospectus dated December 18, 1998
The sixth full paragraph located under the heading entitled "INVESTMENT PROGRAM
- - INVESTMENT POLICIES" on page 6 of the prospectus should be deleted in its
entirety and replaced with the following two paragraphs:
"The Portfolio may invest up to 50% of its total assets
in U.S. dollar-denominated securities of foreign issuers.
The Portfolio may invest up to 100% of its total assets in obligations
issued by banks. While the Portfolio will limit its investments in bank
instruments to U.S. dollar-denominated obligations, it may invest in
Eurodollar obligations (i.e., U.S. dollar-denominated obligations
issued by a foreign branch of a domestic bank), Yankee dollar
obligations (i.e., U.S. dollar-denominated obligations issued by a
domestic branch of a foreign bank) and obligations of foreign branches
of foreign banks, including time deposits."
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PRIVATE INVESTMENT CLASS
OF THE
LIQUID ASSETS PORTFOLIO
OF
SHORT-TERM INVESTMENTS CO.
Supplement dated July 1, 1999
to the Prospectus dated December 18, 1998
The sixth full paragraph located under the heading entitled "INVESTMENT PROGRAM
- - INVESTMENT POLICIES" on page 7 of the prospectus should be deleted in its
entirety and replaced with the following two paragraphs:
"The Portfolio may invest up to 50% of its total assets
in U.S. dollar-denominated securities of foreign issuers.
The Portfolio may invest up to 100% of its total assets in obligations
issued by banks. While the Portfolio will limit its investments in bank
instruments to U.S. dollar-denominated obligations, it may invest in
Eurodollar obligations (i.e., U.S. dollar-denominated obligations
issued by a foreign branch of a domestic bank), Yankee dollar
obligations (i.e., U.S. dollar-denominated obligations issued by a
domestic branch of a foreign bank) and obligations of foreign branches
of foreign banks, including time deposits."
<PAGE> 5
SHORT-TERM INVESTMENTS CO.
LIQUID ASSETS PORTFOLIO
RESERVE CLASS
Supplement dated July 1, 1999
to the Prospectus dated December 18, 1998
The sixth full paragraph located under the heading entitled "INVESTMENT PROGRAM
- - INVESTMENT POLICIES" on page 6 of the prospectus should be deleted in its
entirety and replaced with the following two paragraphs:
"The Portfolio may invest up to 50% of its total assets
in U.S. dollar-denominated securities of foreign issuers.
The Portfolio may invest up to 100% of its total assets in obligations
issued by banks. While the Portfolio will limit its investments in bank
instruments to U.S. dollar-denominated obligations, it may invest in
Eurodollar obligations (i.e., U.S. dollar-denominated obligations
issued by a foreign branch of a domestic bank), Yankee dollar
obligations (i.e., U.S. dollar-denominated obligations issued by a
domestic branch of a foreign bank) and obligations of foreign branches
of foreign banks, including time deposits."
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SHORT-TERM INVESTMENTS CO.
LIQUID ASSETS PORTFOLIO
RESOURCE CLASS
Supplement dated July 1, 1999
to the Prospectus dated December 18, 1998
The sixth full paragraph located under the heading entitled "INVESTMENT PROGRAM
- - INVESTMENT POLICIES" on page 7 of the prospectus should be deleted in its
entirety and replaced with the following two paragraphs:
"The Portfolio may invest up to 50% of its total assets
in U.S. dollar-denominated securities of foreign issuers.
The Portfolio may invest up to 100% of its total assets in obligations
issued by banks. While the Portfolio will limit its investments in bank
instruments to U.S. dollar-denominated obligations, it may invest in
Eurodollar obligations (i.e., U.S. dollar-denominated obligations
issued by a foreign branch of a domestic bank), Yankee dollar
obligations (i.e., U.S. dollar-denominated obligations issued by a
domestic branch of a foreign bank) and obligations of foreign branches
of foreign banks, including time deposits."
