The investment seeks to track the investment results (before fees and expenses) of the S&P Global Water Index (the underlying index). The fund generally will invest at least 90% of its total assets in the securities that comprise the underlying index, as well as ADRs and GDRs that represent securities in the underlying index. Strictly in accordance with its guidelines and mandated procedures, the index provider compiles, maintains, and calculates the underlying index, which is designed to measure the performance of approximately 50 of the largest global companies in water-related businesses. The fund is non-diversified.