The Nuveen Michigan Municipal Bond Fund Class I (NMMIX) is a mutual fund that primarily invests in municipal bonds issued by the state of Michigan. These bonds are issued by local governments and are used to fund public projects such as schools, roads, and infrastructure. This fund aims to provide investors with tax-free income and potential capital appreciation through its diversified portfolio of Michigan municipal bonds. As a Class I fund, it is designed for institutional investors and has a higher minimum investment requirement. NMMIX may be a suitable option for investors seeking a tax-efficient way to invest in the state of Michigan while also diversifying their portfolio.