The MSIFT Ultra-Short Income Portfolio Institutional Class (MUIIX) is a mutual fund that focuses on generating income through short-term investments. It is designed for institutional investors and aims to provide a stable and consistent return with low risk. The fund primarily invests in fixed-income securities with short maturities, such as government and corporate bonds, as well as cash and cash equivalents. With a focus on capital preservation, this fund is suitable for investors looking for a low-risk option for generating income.