<PAGE>
[MORGAN, LEWIS & BOCKIUS LLP LETTERHEAD]
August 14, 1998
VIA EDGAR
Securities and Exchange Commission
450 Fifth Street, N.W.
Judiciary Plaza
Washington, D.C. 20549
Re: Rydex Series Trust (File Nos. 33-59692, 811-7584)
Filing Pursuant to Rule 497(j)
------------------------------
Ladies and Gentlemen:
On behalf of our client, Rydex Series Trust (the "Trust"), we are filing,
pursuant to Rule 497(j) under the Securities Act of 1933, as amended, this
letter certifying that the Prospectus and Statement of Additional Information
dated August 5, 1998 do not differ from those contained in the Trust's
Post-Effective Amendment No. 33 which was filed via EDGAR on August 12, 1998.
Please contact me at (202) 467-7087 if you have any questions or comments
concerning this filing.
Sincerely,
/s/John H. Grady, Jr.
John H. Grady, Jr.