The Fund generally will invest at least 90% of its total assets in securities that comprise the Underlying Index. Strictly in accordance with its guidelines and mandated procedures, S&P Dow Jones Indices LLC ('S&P DJI' or the 'Index Provider') compiles, maintains and calculates the Underlying Index, which is composed of securities of all companies included in the S&P 500 Index that are classified as members of the energy sector, as defined according to the Global Industry Classification Standard (GICS'), with a 22 company minimum count at each quarterly rebalance. Although the Fund generally seeks to employ a 'full replication' methodology in seeking to track the Underlying Index (meaning that the Fund generally invests in all of the securities comprising the Underlying Index in proportion to their weightings in the Underlying Index), the Fund at times may employ a 'sampling' methodology, which may include, after investing at least 90% of its total assets in the components of the Underlying Index, investing a portion of its assets in other investment companies, including exchange-traded funds ('ETFs'). Such investment companies may be affiliated with the Fund and will seek to invest in securities of companies in the energy sector.