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ZMUN · F/m Ultrashort Tax-Free Municipal ET · Short Interest ETF

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$49.96 +0.04 (+0.07%)
Volume · Oct 23 3370 Avg daily vol (3M) 5606

Shares sold short and not yet covered, reported twice monthly. Days to cover is the reported short position divided by average daily volume.

Pull short interest history through the short interest API or MCP →

ZMUN Latest Reported Short Interest

FINRA reported 674 ZMUN shares sold short as of the September 30, 2026 settlement date, a decrease of 6,051 shares. Days to cover was 1.00 based on FINRA's reported average daily volume.

Official FINRA short-interest data · share counts are restated for subsequent splits of this listing

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    • Short Interest History

    Settlement Date Current Position Previous Position Change Days to Cover
    2026-10-30 Scheduled
    FINRA publishes Nov 10
    		 — — — —
    2026-10-15 Scheduled
    FINRA publishes Oct 26
    		 — — — —
    2026-09-30 674 6,725 -6,051 1.00
    2026-09-15 6,725 5,946 +779 2.40
    2026-08-31 5,946 8,091 -2,145 1.00
    2026-08-14 8,091 8,870 -779 1.89
    2026-07-31 8,870 50,138 -41,268 2.00
    2026-07-15 50,138 29,910 +20,228 7.42
    2026-06-30 29,910 32,189 -2,279 4.00
    2026-06-15 32,189 36,872 -4,683 4.06
    2026-05-29 36,872 21,873 +14,999 3.57
    2026-05-15 21,873 24,626 -2,753 2.35
    2026-04-30 24,626 22,997 +1,629 8.70
    2026-04-15 22,997 9,652 +13,345 6.28
    2026-03-31 9,652 9,704 -52 1.58
    2026-03-13 9,704 3,864 +5,840 3.07
    2026-02-27 3,864 3,934 -70 1.10
    2026-02-13 3,934 458 +3,476 4.71
    2026-01-30 458 96 +362 1.00
    2026-01-15 96 287 -191 1.00
    2025-12-31 287 87 +200 1.00
    2025-12-15 87 87 0 1.00
    2025-11-28 87 87 0 1.00
    2025-11-14 87 2,895 -2,808 1.00
    2025-10-31 2,895 3,038 -143 1.00

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements