F/m Ultrashort Tax-Free Municipal ETF
ZMUN
NASDAQ Global Market- -
USD
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Capital Structure
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in mil. unless spec.Working Capital
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in mil. unless spec.Growth Rates
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in mil. unless spec.Quarterly Revenue
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in mil. unless spec.Quarterly Earnings Per Share
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in mil. unless spec.Quarterly Dividends Per Share
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in mil. unless spec.- Sector
- Financial Services
- Industry
- Asset Management - Bonds
- Address
- 3050 K Street NW, Suite 201 Washington DC United States of America 20007
- IPO Date
- Sep 30, 2025
- Website
- rbbfund.com
- Similar Companies
- Business
- F/m Ultrashort Tax-Free Municipal ETF (ZMUN), issued by The RBB Fund, Inc., is an exchange-traded fund that seeks to track the Bloomberg Municipal Bond Currently Callable Index by investing primarily in short-duration, investment-grade, currently callable municipal bonds with durations of less than one year; the fund offers federally tax-exempt income, monthly distributions, low interest rate sensitivity, high average AA credit quality per Moody's, and tax-efficient structure that helps defer capital gains. The ETF provides investors and advisors with liquid access to a specialized municipal bond market segment featuring higher coupons relative to traditional short-term municipals, positioning it as a tax-efficient cash alternative for short-duration allocations. The RBB Fund, Inc., founded in 1988 and headquartered at 615 East Michigan Street in Milwaukee, Wisconsin, operates as the oldest and largest independent multiple series trust, offering an open-architecture platform for investment managers that delivers operational efficiencies, economies of scale, high-quality service, and competitive pricing through outsourced expertise. RBB supports a range of ETFs, mutual funds, and other strategies across fixed income and related segments, with no bank sponsor affiliation and a sole focus on series trust operations serving U.S.-based financial advisors, institutions, and individual investors. In October 2025, F/m Investments, the fund's adviser and sponsor with over $18 billion in assets under management, launched ZMUN as the first ETF dedicated to callable municipal bonds, developed in partnership with Bloomberg Indices to enhance structure and transparency in this niche; the fund was previously known as F/m Short Duration High Coupon Tax-Free Municipal ETF and F/m Callable Tax-Free Municipal ETF prior to its final naming. This launch expands F/m's innovative fixed-income ETF suite, including the U.S. Benchmark Series, U.S. Credit Series, and Compoundr Series, amid ongoing efforts to optimize income, manage risk, and improve portfolio efficiency for clients.