The Vanguard Treasury Money Market Fund Shs (VUSXX) is a mutual fund that primarily invests in short-term, high-quality U.S. Treasury securities. This fund aims to provide investors with a low-risk investment option that offers stability and liquidity. It is managed by Vanguard, a reputable investment management company known for its low-cost index funds. The VUSXX fund is suitable for investors looking for a conservative investment option with minimal fluctuations in value.