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MUB · iShares National Muni Bond ETF · Short Interest ETF

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$102.35 +0.01 (+0.00%)
Volume · Oct 20 7.71M Avg daily vol (3M) 10.78M

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 →

MUB Latest Reported Short Interest

FINRA reported 14,291,040 MUB shares sold short as of the September 30, 2026 settlement date, an increase of 2,337,936 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 14,291,040 11,953,104 +2,337,936 1.00
    2026-09-15 11,953,104 8,073,285 +3,879,819 1.04
    2026-08-31 8,073,285 5,631,235 +2,442,050 1.89
    2026-08-14 5,631,235 6,073,057 -441,822 1.39
    2026-07-31 6,073,057 5,552,133 +520,924 1.29
    2026-07-15 5,552,133 4,336,352 +1,215,781 1.67
    2026-06-30 4,336,352 5,400,428 -1,064,076 1.42
    2026-06-15 5,400,428 4,115,353 +1,285,075 1.52
    2026-05-29 4,115,353 5,051,099 -935,746 1.06
    2026-05-15 5,051,099 6,390,813 -1,339,714 1.65
    2026-04-30 6,390,813 6,031,415 +359,398 2.24
    2026-04-15 6,031,415 6,371,213 -339,798 1.50
    2026-03-31 6,371,213 7,898,623 -1,527,410 1.25
    2026-03-13 7,898,623 7,762,715 +135,908 2.08
    2026-02-27 7,762,715 8,397,056 -634,341 2.92
    2026-02-13 8,397,056 7,239,001 +1,158,055 2.48
    2026-01-30 7,239,001 7,753,659 -514,658 1.78
    2026-01-15 7,753,659 6,830,735 +922,924 1.71
    2025-12-31 6,830,735 6,902,026 -71,291 2.10
    2025-12-15 6,902,026 6,820,758 +81,268 2.06
    2025-11-28 6,820,758 7,508,165 -687,407 1.57
    2025-11-14 7,508,165 7,298,352 +209,813 1.73
    2025-10-31 7,298,352 7,490,019 -191,667 1.95

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements