The investment seeks to track the investment results of the Morningstar® U.S. Dividend Growth IndexSM. The index is a dividend dollars weighted index that seeks to measure the performance of U.S. companies selected based on a consistent history of growing dividends. The index is a subset of the Morningstar® U.S. Market IndexSM, which is a diversified broad market index that represents approximately 97% of the market capitalization of publicly-traded U.S. stocks. The fund generally invests at least 90% of its assets in securities of the index and in depositary receipts representing securities of the index.