Mfs High Yield Municipal Trust is a United States-based diversified, closed-end management investment company. Its investment objective is to seek high current income exempt from federal income tax. The fund invests a majority of its net assets, including assets attributable to preferred shares and borrowings for investment purposes, in tax-exempt bonds and tax-exempt notes. The company invest various top Healthcare companies, Airport, Universities (Secondary Schools), Universities (Dormitories), and many more, out of maximum revenue is gained from Healthcare Hospitals and Long Term Care.