The Fund employs an indexing investment approach designed to track the performance of the CRSP US Total Market Index (the Index), which represents approximately 100 percent of the investable U.S. stock market and includes large-, mid-, small-, and micro-cap stocks. The Fund invests by sampling the Index, meaning that it holds a broadly diversified collection of securities that, in the aggregate, approximates the full Index in terms of key characteristics. These key characteristics include industry weightings and market capitalization, as well as certain financial measures, such as price/earnings ratio and dividend yield.