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RYDEX SERIES TRUST
Supplement dated March 25, 1999
THIS SUPPLEMENT PROVIDES NEW AND ADDITIONAL INFORMATION BEYOND THAT CONTAINED IN
THE PROSPECTUS AND SHOULD BE READ IN CONJUNCTION WITH THE PROSPECTUS.
The following replaces the third sentence in the first paragraph of "Purchasing
Shares" under HOW TO INVEST IN THE FUNDS:
For most Funds, the NAV is calculated once each Business Day after the close of
the New York Stock Exchange (currently, 4:00 p.m., Eastern Time).
PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE.
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RYDEX SERIES TRUST
Supplement dated March 25, 1999 to Statement of Additional Information
THIS SUPPLEMENT PROVIDES NEW AND ADDITIONAL INFORMATION BEYOND THAT CONTAINED IN
THE STATEMENT OF ADDITIONAL INFORMATION AND SHOULD BE READ IN CONJUNCTION WITH
THE STATEMENT OF ADDITIONAL INFORMATION.
The following replaces the first sentence in the second paragraph of
DETERMINATION OF NET ASSET VALUE.
For purposes of determining net asset value per share of a Fund, options and
futures contracts will be valued at close of regular trading on the NYSE,
currently 4:00 P.M., Eastern Time, except that futures contracts traded on the
Chicago Board of Trade ("CBOT") will be valued at 3:00 P.M., Eastern Time, the
close of trading of that exchange.
PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE.
