Aberdeen Municipal Income Fund Overview
Pro stress-test →MFS Municipal Income Trust is a closed-end fixed income mutual fund launched and managed by Massachusetts Financial Services Company. The fund invests approximately 80% of its net assets in municipal bonds. Its investment objective is to seek high current income exempt from federal income tax but may also consider capital appreciation.
Strategic Profile
Pro stress-test →In June 2026, the fund completed a reorganization merging three predecessor funds—MFS High Yield Municipal Trust, MFS High Income Municipal Trust, and MFS Investment Grade Municipal Trust—into the entity now operating as Aberdeen Municipal Income Fund. Simultaneously, abrdn Inc. assumed management responsibility from MFS Investment Management, with new trustees taking office in April 2026 following shareholder election. The fund holds approximately $243 million in net assets as of March 31, 2026.
Competitive Landscape
Pro stress-test →MFS Municipal Income Trust operates in the tax-exempt municipal bond closed-end fund market, competing with other municipal CEFs such as MFS Charter Income Trust (MCR) and MFS California Municipal Fund (CCA), both also under MFS management. The broader competitive set includes municipal bond mutual funds and ETFs from providers like iShares, Vanguard, and PIMCO. The restructuring under abrdn positions the fund to compete on scale and management expertise in the municipal income space.
Industry Context
Aberdeen Municipal Income Fund operates in Municipal bond closed-end funds.
Key facts
Founded: 1986 · Headquarters: Boston, Massachusetts