SLY vs VOO

The fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the index. In addition, in seeking to track the index, it may invest in equity securities that are not included in the index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds. The index measures the performance of the small-capitalization segment of the U.S. equity market.

The fund employs an indexing investment approach designed to track the performance of the Standard & Poor's 500 Index, a widely recognized benchmark of U.S. stock market performance that is dominated by the stocks of large U.S. companies. The advisor 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. The fund is non-diversified.