The investment seeks to track the investment results of the MSCI USA Mid Cap Diversified Multiple-Factor Index. The index is designed to select equity securities from the MSCI USA Mid Cap Index (the parent index) that have high exposure to four investment style factors: value, quality, momentum and low size, while maintaining a level of risk similar to that of the parent index. The fund generally will invest at least 90% of its assets in the component securities of the index and may invest up to 10% of its assets in certain futures, options and swap contracts, cash and cash equivalents. It is non-diversified.