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[AIM LOGO APPEARS HERE]
--Registered Trademark--
P.O. Box 4333
Houston, TX 77210-4333
11 Greenway Plaza, Suite 100
Houston, TX 77046-1173
713-626-1919
A I M Advisors, Inc.
June 2, 2000
VIA EDGAR
Securities and Exchange Commission
Judiciary Plaza
450 Fifth Street, N.W.
Washington, DC 20549
Re: Short-Term Investments Co.
CIK No. 0000914638
Gentlemen:
Pursuant to Rule 497(j) under the Securities Act of 1933 ("1933 Act"), the
undersigned certifies on behalf of Short-Term Investments Co. (the "Fund") that
the form of Prospectuses relating to the Cash Management Class, Personal
Investment Class, Private Investment Class, Reserve Class and Resource Class of
the Prime Portfolio that would have been filed under the Rule 497(c) of the 1933
Act do not differ from those contained in Post-Effective Amendment No. 12 to the
Fund's Registration Statement on Form N-1A. Such Post-Effective Amendment No.
12 is the most recent Amendment to the Fund's Registration Statement which was
filed electronically with the Securities and Exchange Commission on May 23,
2000.
Please send copies of all correspondence with respect to this certificate to the
undersigned, or contact me at (713) 214-1212.
Very truly yours,
/s/ RENEE A. FRIEDLI
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Renee A. Friedli
Counsel
A member of the AMVESCAP Group
