The S&P 500 Index includes the common stocks of 500 leading U.S. companies from a broad range of industries. The fund is passively managed. It invests primarily in the stocks that make up the index so that the weighting of each stock in the portfolio approximates the index. The fund's policy to invest at least 80% of its total assets (which includes the amount of any borrowings for investment purposes) in the underlying stocks of the index.