The investment seeks to track the performance of a benchmark index that measures the investment return of large- and mid-capitalization stocks. The fund employs an indexing investment approach designed to track the performance of the FTSE4Good US Select Index. The index, which is market-capitalization weighted, is composed of large- and mid-cap stocks of companies that are screened for certain ESG criteria by the index sponsor. The manager attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the index, holding each stock in approximately the same proportion as its weighting in the index.