The Fund normally invests in securities comprising the Index. The Index is designed to track the performance of companies that are involved in the nuclear fuel and energy industry (the Nuclear Industry), particularly in the areas of (i) advanced reactors; (ii) utilities; (iii) construction and services; and/or (iv) fuel (Nuclear Companies). Under normal circumstances, the Fund invests at least 80 percent of its net assets (plus the amount of any borrowings for investment purposes) in securities of Nuclear Companies.