Nuveen Short Duration High Yield Municipal Bond Fund Class I (NVHIX) is a mutual fund that primarily invests in short-term, high-yield municipal bonds. These bonds are issued by state and local governments and are considered to have a higher risk of default, but also offer potentially higher returns. The fund aims to provide investors with a steady stream of income through interest payments from these bonds. As a Class I fund, it is typically only available to institutional investors and has a lower expense ratio compared to other classes of the same fund. Overall, NVHIX offers a way for investors to potentially earn higher yields while also diversifying their portfolio with municipal bonds.