The investment seeks to track the investment results of the Russell 2500TM Index. The fund generally will invest at least 90% of its assets in the component securities, including indirect investments through the underlying fund, of the underlying index and may invest up to 10% of its assets in certain futures, options and swap contracts, cash and cash equivalents. The underlying index measures the performance of the small- to mid-capitalization sector of the U.S. equity market, as defined by FTSE Russell.