Strategy. Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in securities included in the underlying index. This policy may be changed without shareholder approval; however, shareholders would be notified upon 60 days notice in writing of any changes. The Fund employs a passive management strategy designed to track, as closely as possible, before fees and expenses, if any, the performance of the Solactive GBS United States 500 Index (the Index). The Fund invests in the common stock of each company in the Index in approximately the same proportion as represented in the Index itself. The Fund may also lend its securities. The Index intends to track the performance of the … Show more… Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in securities included in the underlying index. This policy may be changed without shareholder approval; however, shareholders would be notified upon 60 days notice in writing of any changes. The Fund employs a passive management strategy designed to track, as closely as possible, before fees and expenses, if any, the performance of the Solactive GBS United States 500 Index (the Index). The Fund invests in the common stock of each company in the Index in approximately the same proportion as represented in the Index itself. The Fund may also lend its securities. The Index intends to track the performance of the largest 500 companies from the U.S. stock market and is based on the Solactive Global Benchmark Series. Constituents are selected based on company market capitalization and weighted by free-float market capitalization. The Index is calculated as a total return index in U.S. dollars and is reconstituted quarterly. As of December 31, 2025, ?the market capitalization range of the Index was approximately $782.7 million to $4.35 trillion. As of December 31, 2025, the Index had 505 constituents. An index is a group of securities whose overall performance is used as a standard to measure investment performance. An index or passively managed fund tries to match, as closely as possible, the performance of an established target index. An index funds goal is to mirror the target index whether the index is going up or down. To track the Index as closely as possible, the Fund attempts to remain fully invested in stocks. The Fund uses a replication method of indexing. The replication method involves holding every security in the Index in approximately the same proportion as the Index. Unlike the Index, however, the Fund is subject to certain regulatory requirements and portfolio construction constraints that can limit its ability to fully replicate the Index. Under various circumstances, it may not be possible or practicable to purchase or hold all of, or only, the constituent securities in their respective weightings in the Index. In this event a sampling method is used which involves selecting a representative number of securities that will resemble the Index in terms of key risk and other characteristics. The Fund will concentrate its investments (i.e., invest 25% or more of its total assets) in a particular industry or group of industries if the Index is so concentrated. The degree to which components of the Index represent certain industries may change over time. Show less