The Invesco High Yld Muni Cl A mutual fund, with ticker symbol ACTHX, is a high-yield municipal bond fund offered by Invesco. This fund primarily invests in municipal bonds with lower credit ratings, making it a higher risk investment option. However, it also offers the potential for higher returns through the higher interest rates associated with these bonds. This fund is classified as a Class A fund, meaning it has a front-end sales charge and may also have ongoing management fees. Overall, the Invesco High Yld Muni Cl A fund is designed for investors seeking potentially higher returns through municipal bond investments.