Exhibit 99.D INVESTMENT SUB-ADVISORY AGREEMENT BETWEEN PADCO ADVISORS II, INC. AND CLARKE LANZEN SKALLA INVESTMENT FIRM, LLC DATED JUNE 20, 2003 INVESTMENT SUB-ADVISORY AGREEMENT AGREEMENT made this 20th day of June, 2003, by and between PADCO...Investment Sub-Advisory Agreement • December 2nd, 2003 • Rydex Variable Trust • Delaware
