The investment seeks investment results that correspond generally to the price and yield performance, before fees and expenses, of the MSCI World Index (the "underlying index"). The fund generally invests at least 90% of its assets in the securities of the underlying index or in depositary receipts representing securities in its underlying index. The underlying index is designed to measure the performance of equity securities in the top 85% of equity market capitalization, as calculated by the index provider, in certain developed market countries.