MFS Government Markets Income Trust (NYSE: MGF) is a closed-end fixed income mutual fund managed by Massachusetts Financial Services Company that seeks high current income through investments primarily in investment grade debt instruments in the United States fixed income markets. The fund offers exposure to U.S. Treasuries, mortgage-backed securities, U.S. government agency securities, investment grade corporate bonds, international sovereign debt, emerging markets debt, high grade corporates, residential mortgage-backed securities, commercial mortgage-backed securities, municipals, collateralized loan obligations, asset-backed securities, cash and other net assets; it employs derivatives such as U.S. Treasury futures, overnight index swaps and other interest rate derivatives for both long and short positions, with a portfolio characterized by an average effective duration of 6.27 years, average effective maturity of 7.15 years, 448 issues from 85 issuers, and a managed monthly distribution rate of 7.25%. MGF, founded on May 28, 1987 and headquartered at 111 Huntington Avenue, Boston, Massachusetts, benchmarks its performance against the Bloomberg U.S. Government/Mortgage Bond Index and trades on the New York Stock Exchange. In December 2025, the Board of Trustees approved a proposed reorganization of MGF into MFS Multimarket Income Trust (NYSE: MMT), along with related proposals for the surviving fund including the appointment of Aberdeen Investments as investment adviser, addition of five new trustees, and issuance of additional common shares, each subject to shareholder approval and other conditions.