The investment seeks to track as closely as possible, before fees and expenses, the total return of the Dow Jones U.S. Broad Stock Market IndexSM. The fund invests at least 90% of its net assets in stocks that are included in the index. The index includes the largest 2,500 publicly traded U.S. companies for which pricing information is readily available. The index is a float-adjusted market capitalization weighted index that reflects the shares of securities actually available to investors in the marketplace. It may invest up to 10% of its net assets in securities not included in its index.