The State Street Institutional Investment Trust US Government Money Market Fund Institutional (ticker: GVMXX) is a mutual fund that primarily invests in short-term, high-quality debt securities issued by the US government. This fund is designed for institutional investors seeking a low-risk, liquid investment option with potential for modest returns. It aims to maintain a stable net asset value (NAV) of $1 per share and may be suitable for those looking to preserve capital and earn a competitive yield.