Simplify National Muni Bond ETF (NMB) is an actively managed exchange-traded fund that seeks current income as its primary objective, with capital appreciation as a secondary goal, through investments primarily in investment-grade U.S. municipal bonds offering tax-free yields; an opportunistic municipal bond trading strategy targeting undervalued securities overlooked by passive indexes; and a diversified, risk-managed multi-asset options writing strategy involving option spreads on equity, fixed income, and commodity indices and ETFs to enhance returns. The ETF trades on the NYSE Arca exchange under the ticker NMB with CUSIP 82889N442 and features a net expense ratio of 0.52%. NMB serves investors seeking tax-efficient income and capital preservation in the fixed income segment, particularly those in higher tax brackets benefiting from municipal bond tax exemptions combined with taxable options income for potentially superior after-tax yields relative to national municipal bond indexes.
Issued by Simplify Exchange Traded Funds and managed by Simplify Asset Management Inc., headquartered at 10845 Griffith Peak Drive, Second Floor, Las Vegas, Nevada 89135, NMB was launched on September 9, 2024. Simplify Asset Management, founded in 2020 by industry veterans including CIO David Berns, specializes in alternative investment strategies via ETFs, with total assets under management approaching $6 billion across its lineup. The municipal bond portfolio is subadvised by Foundation Credit, a specialist credit investment firm with over a decade of institutional portfolio management experience.
NMB represents Simplify's expansion into municipal bond strategies within its growing fixed income offerings, alongside products such as the $1.2 billion Simplify MBS ETF (MTBA) and Simplify Short Term Treasury Futures Strategy ETF (TUA). Launched in September 2024 as part of this lineup, the ETF has grown to approximately $92 million in net assets as of late 2024, reflecting investor interest in its multi-layered return sources amid evolving market conditions. No major acquisitions, funding rounds, or reorganizations specific to NMB have been reported since inception, though Simplify announced closures of four unrelated ETFs in 2025 as part of ongoing product lineup adjustments.