The MainStay Floating Rate Fund SIMPLE Class (MXFMX) is a mutual fund that primarily invests in floating rate loans and other debt securities. These types of investments have variable interest rates that adjust periodically, making them less sensitive to changes in interest rates. This fund is designed for investors seeking a stable source of income with potential for higher returns than traditional fixed-rate investments. The "SIMPLE" in the fund name stands for "Savings Incentive Match Plan for Employees," indicating that this fund may be offered as an investment option in employer-sponsored retirement plans.