The investment seeks investment results that correspond generally to the price and yield performance, before fees and expenses, of the MSCI ACWI Select Energy Producers Investable Market Index (the "underlying index"). The fund generally invests at least 80% of its assets in securities of the underlying index or in depositary receipts representing securities in the underlying index. The underlying index has been developed by MSCI Inc. ("MSCI") to measure the combined performance of equity securities of companies primarily engaged in the business of energy exploration and production in both developed and emerging markets. The fund is non-diversified.