Eaton Vance National Ltd Mat Muni Inc A (Ticker: EXNAX) is a closed-end management investment company that seeks high current income exempt from federal income tax and, secondarily, capital gains through investments in a diversified portfolio of municipal obligations. The fund primarily invests in investment-grade municipal bonds issued by states, territories, and political subdivisions across the United States, including general obligation bonds, revenue bonds, and pre-refunded bonds; it may also allocate up to 20% to below-investment-grade securities for enhanced yield. Eaton Vance Management, a subsidiary of Morgan Stanley Investment Management, serves as the investment adviser, employing a laddered maturity strategy to manage duration risk and liquidity.
Headquartered in Boston, Massachusetts, and established in 2002, the company operates within the municipal bond sector, targeting tax-sensitive individual and institutional investors seeking federally tax-exempt income. Its portfolio emphasizes national municipal securities with intermediate to long-term maturities, distributed through broker-dealers and financial advisors nationwide. The fund does not engage in significant derivatives or leverage beyond standard closed-end structures.
Recent developments include Eaton Vance's integration into Morgan Stanley following the 2021 acquisition, enhancing distribution capabilities and research resources for municipal fixed-income strategies; in 2024, the fund benefited from portfolio repositioning amid rising interest rates, increasing allocations to higher-yielding sectors like healthcare and transportation revenue bonds. No major acquisitions, name changes, or new product launches specific to EXNAX were reported in the last two years, though the broader Eaton Vance platform launched enhanced ESG-focused municipal offerings in 2025.