Under normal circumstances, the Fund will invest at least 80 percent of its net assets, plus the amount of any borrowings for investment purposes, in securities that comprise the Underlying Index, or derivatives transactions that provide investment exposure to the Underlying Index or securities that comprise the Underlying Index. In accordance with its guidelines and mandated procedures, Barclays Bank PLC (Barclays or the Index Provider) compiles, maintains and calculates the Underlying Index. The Underlying Index takes the Fortune 500 list, which consists of the 500 largest companies in the United States based on revenue, and excludes (1) private companies (i.e., those without publicly-listed equity securities) and those with equity securities not listed on the NYSE or NASDAQ; (2) and companies with listed equity securities that do not meet a minimum liquidity threshold or minimum listing period requirements; (3) companies incorporated outside the U.S.; (4) U.S. companies owned or controlled by other companies, domestic or foreign, that file with a government agency; and (5) companies that failed to report full financial statements for at least three quarters of the current fiscal year. The Underlying Index is reconstituted on an annual basis and is rebalanced otherwise quarterly. Unlike most equity indices, which are weighted according to the market capitalizations of their component companies, the constituents of the Underlying Index are equally weighted, which means that the Underlying Index assigns each constituent the same weight at each reconstitution and quarterly rebalance, regardless of such constituents market capitalization.