The investment seeks investment results that correspond generally to the price and yield (before the fund's fees and expenses) of an equity index called the NASDAQ OMX® Clean Edge® Smart Grid Infrastructure IndexSM. The fund will normally invest at least 90% of its net assets (including investment borrowings) in the common stocks and depositary receipts that comprise the index. The index includes companies that are primarily engaged and involved in electric grid, electric meters and devices, networks, energy storage and management, and enabling software used by the smart grid infrastructure sector. The fund is non-diversified.