Nuveen Taxable Municipal Income Fund (NBB) is a closed-end fixed income mutual fund that seeks current income through investments primarily in a diversified portfolio of taxable municipal securities, including Build America Bonds; up to 20% of its assets may be invested in other securities such as tax-exempt municipal securities, U.S. Treasury and government securities, and derivative instruments. The Fund invests at least 80% of its managed assets in securities rated investment grade at the time of purchase or, if unrated, deemed comparable by Nuveen Asset Management; it employs leverage through borrowings and preferred shares issuance to enhance income and total return, benchmarks against the Barclays Capital Build America Bond Index, and targets sectors such as transportation, utilities, education, healthcare, and infrastructure. Formerly known as Nuveen Build America Bond Fund, it trades on the New York Stock Exchange under the ticker NBB.
Launched on December 4, 2009 and domiciled in the United States, the Fund is managed by Nuveen Fund Advisors, LLC and Nuveen Asset Management, LLC, with headquarters at 333 West Wacker Drive, Chicago, Illinois. It operates within the U.S. fixed income markets, serving investors seeking higher yields from municipal debt while prioritizing credit quality through fundamental bottom-up and top-down analysis.
Recent developments include consistent monthly dividend declarations, such as $0.0965 per share ex-dividend dates through December 2025, reflecting stable income distribution policies amid market conditions. The parent organization, Nuveen, completed the acquisition of Brooklyn Investment Group and its technology platform in June 2025 to expand direct indexing and tax-advantaged multi-asset solutions, building on their 2023 strategic partnership. Additionally, Nuveen formed a partnership with Hunter Point Capital and Temasek in 2025 to target private capital opportunities in resilient infrastructure sectors like clean energy and AI, alongside raising $1.3 billion in November 2025 for energy transition and power infrastructure financings.