November 11, 1998
Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C. 20549-1004
Attn: Filing Desk, Stop 1-4
Re: Van Kampen Focus Portfolios, Series 121
(File No. 333-65637) (CIK No. 1025270)
Gentlemen:
In accordance with the provisions of Rule 497(j) of Regulation C under the
Securities Act of 1933 (the iSecurities Acti) this letter serves to certify that
the most recent amendment to the registration statement of Form S-6 for the
above captioned Trust does not differ from that which would have been filed
pursuant to Rule 497(b) of the Securities Act. Amendment No. 1 to the
registration statement, which was the most recent amendment to the registration
statement, was filed electronically with the Commission on November 10, 1998.
Very truly yours,
Van Kampen Funds Inc.
