Rydex Series Funds Energy Fund Investor Class 

Under normal circumstances, the fund invests substantially all (at least 80%) of its net assets in equity securities of Energy Companies that are traded in the United States and in derivatives, which primarily consist of futures contracts and options on securities, futures contracts, and stock indices. It will invest to a significant extent in the securities of Energy Companies that have small to mid-sized capitalizations. The fund also may purchase American Depositary Receipts ("ADRs") to gain exposure to foreign Energy Companies and U.S. government securities.