The investment seeks to provide investment results that closely correspond, before fees and expenses, to the performance of the John Hancock Dimensional Small Cap Index (the index). The fund normally invests at least 80% of its net assets (plus any borrowings for investment purposes) in securities that compose the fund's index. The index is designed to comprise a subset of securities in the U.S. Universe issued by companies whose market capitalizations are smaller than the 750th largest U.S. company but excluding the smallest 4% of U.S. companies at the time of reconstitution.