The Goldman Sachs High Yield Municipal Fd Cl A (GHYAX) is a mutual fund that primarily invests in high-yield municipal bonds. These bonds are issued by state and local governments to fund various projects and are considered to have a higher risk but also offer potentially higher returns. This fund is managed by Goldman Sachs, a leading investment bank, and aims to provide investors with a diversified portfolio of high-yield municipal bonds to generate income and potential capital appreciation.