EXPENSE LIMITATION AGREEMENT EXPENSE LIMITATION AGREEMENT, effective as of May 1, 2006 by and between PADCO Advisors, Inc., a Maryland corporation, d/b/a/ Rydex Investments (the "Adviser"), and Rydex Series Funds (the "Trust") (the "Agreement"), on...Expense Limitation Agreement • July 31st, 2006 • Rydex Series Funds
