Strategy. The Fund employs as its investment strategy a program of investing in the common stock of companies that are generally within the capitalization range of the underlying index and derivative instruments, which primarily consist of equity index swaps, futures contracts, and options on securities, futures contracts, and stock indices. While the Fund may write (sell) and purchase swaps, it expects primarily to purchase swaps. Equity index swaps and futures and options contracts enable the Fund to pursue its investment objective without investing directly in the securities included in the underlying index or in the same proportion that those securities are represented in the underlying index. Certain of the Funds derivatives investments may be traded in the over-the-counter (OTC) market. Under … Show more… The Fund employs as its investment strategy a program of investing in the common stock of companies that are generally within the capitalization range of the underlying index and derivative instruments, which primarily consist of equity index swaps, futures contracts, and options on securities, futures contracts, and stock indices. While the Fund may write (sell) and purchase swaps, it expects primarily to purchase swaps. Equity index swaps and futures and options contracts enable the Fund to pursue its investment objective without investing directly in the securities included in the underlying index or in the same proportion that those securities are represented in the underlying index. Certain of the Funds derivatives investments may be traded in the over-the-counter (OTC) market. Under normal circumstances, the Fund will invest at least 80% of its net assets, plus any borrowings for investment purposes, in securities of companies in the underlying index and derivatives and other instruments whose performance is expected to correspond to that of the underlying index. Investments in derivative instruments, such as futures, options and swap agreements, have the economic effect of creating financial leverage in the Funds portfolio because such investments may give rise to losses that exceed the amount the Fund has invested in those instruments. Financial leverage will magnify, sometimes significantly, the Funds exposure to any increase or decrease in prices associated with a particular reference asset resulting in increased volatility in the value of the Funds portfolio. The value of the Funds portfolio is likely to experience greater volatility over short-term periods. While such financial leverage has the potential to produce greater gains, it also may result in greater losses, which in some cases may cause the Fund to liquidate other portfolio investments at a loss to comply with limits on leverage imposed by the Investment Company Act of 1940, satisfy margin or collateral requirements, or meet redemption requests. The S&P SmallCap 600 Pure Growth Index is composed of those constituents of the S&P SmallCap 600 that exhibit the strongest growth characteristics as measured using three factors: sales growth, ratio of earnings change to price, and momentum. The S&P SmallCap 600 Index is a modified capitalization-weighted index composed of 600 small-cap stocks chosen by the Standard & Poor's Corporation for market size, liquidity and industry group representation. The S&P SmallCap 600 Index generally represents small-capitalization companies with capitalizations ranging from $ 424.4 million to $12 billion as of March 31, 2025. As of March 31, 2025, the S&P SmallCap 600 Pure Growth Index included companies with capitalizations ranging from $676.4 million to $12 billion. To the extent the Funds underlying index is concentrated in a particular industry the Fund will necessarily be concentrated in that industry. The industries in which the underlying index components, and thus the Fund's investments, may be concentrated will vary as the composition of the underlying index changes over time. While the Funds sector exposure may vary over time, as of March 31, 2025, the Fund has significant exposure to the Consumer Discretionary Sector, Financials Sector, Health Care Sector, and Industrials Sector, as each sector is defined by the Global Industry Classification Standard, a widely recognized industry classification methodology developed by MSCI, Inc. and Standard & Poor's Financial Services LLC. On a day-to-day basis, the Fund may hold short-term U.S. government securities or cash equivalents to collateralize its derivatives positions. In an effort to ensure that the Fund is fully invested on a day-to-day basis, the Fund may conduct any necessary trading activity at or just prior to the close of the U.S. financial markets. The Fund is non-diversified and, therefore, may invest a greater percentage of its assets in a particular issuer in comparison to a diversified fund. Show less