Nuveen Enhanced High Yield Municipal Bond Fund (NMSSX) is a non-diversified, continuously offered closed-end management investment company operating as an interval fund. The fund primarily invests in non-investment grade and unrated municipal bonds, as well as special situations municipal securities including distressed and defaulted securities; it targets municipal bond market inefficiencies to seek a high level of current income exempt from regular U.S. federal income tax, with capital appreciation as a secondary objective. Municipal securities held by the fund encompass municipal bonds, notes, certificates of participation, variable rate demand obligations, lease obligations, pre-refunded municipal bonds, private activity bonds, securities issued by tender option bond trusts including inverse floating rate securities, and other related instruments providing exposure to tax-exempt interest income. The fund conducts quarterly repurchase offers for between 5% and 25% of its outstanding common shares at net asset value to provide liquidity to shareholders.
Nuveen Enhanced High Yield Municipal Bond Fund forms part of the municipal high yield bond segment within the fixed income asset class, serving institutional and retail investors seeking tax-advantaged income; its U.S.-domiciled operations focus on domestic municipal securities financing public projects. The fund is managed by Nuveen Funds, with Daniel J. Close as a key portfolio manager. As an interval fund structure, it enables flexibility for larger position sizes and greater allocations to less-liquid municipal securities, including opportunities in special situations such as workouts.
Launched under Nuveen, established in 1898 and headquartered at 333 West Wacker Drive in Chicago, Illinois, the fund benefits from the investment manager's extensive municipals platform. Nuveen, the investment management arm of TIAA, maintains global operations with major offices in Chicago, New York, and Charlotte.
Recent developments include the addition of Steve Hlavin as a portfolio manager effective May 9, 2025, alongside Daniel Close and Stephen Candido for related high yield municipal strategies, with no expected impact on investment approach. On the corporate level, Nuveen formed Nuveen Private Capital in 2023 via acquisition of Arcmont Asset Management combined with Churchill Asset Management, followed by a September 2025 strategic partnership with Hunter Point Capital and Temasek involving minority investments and capital commitments to expand the $87 billion private capital platform. In January 2025, Nuveen launched two active municipal bond ETFs, Nuveen High Yield Municipal ETF (NHYM) and Nuveen Investment Grade Municipal ETF (NUMI), extending its flagship municipal strategies.