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MUST · Columbia Multi-Sector Municipal Income ETF · Short Interest ETF

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$19.51 +0.05 (+0.26%)
Volume · Oct 21 455.36K Avg daily vol (3M) 234.47K

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 →

MUST Latest Reported Short Interest

FINRA reported 407 MUST shares sold short as of the September 30, 2026 settlement date, a decrease of 30,843 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
    		 — — — —
    2026-09-30 407 31,250 -30,843 1.00
    2026-09-15 31,250 28,442 +2,808 1.00
    2026-08-31 28,442 48,142 -19,700 1.00
    2026-08-14 48,142 73,403 -25,261 1.00
    2026-07-31 73,403 97,013 -23,610 1.00
    2026-07-15 97,013 103,386 -6,373 1.00
    2026-06-30 103,386 99,661 +3,725 1.21
    2026-06-15 99,661 50,571 +49,090 1.00
    2026-05-29 50,571 35,024 +15,547 1.00
    2026-05-15 35,024 11,209 +23,815 1.00
    2026-04-30 11,209 22,696 -11,487 1.00
    2026-04-15 22,696 59,734 -37,038 1.00
    2026-03-31 59,734 15,572 +44,162 1.00
    2026-03-13 15,572 82,642 -67,070 1.00
    2026-02-27 82,642 19,645 +62,997 1.00
    2026-02-13 19,645 24,673 -5,028 1.00
    2026-01-30 24,673 30,812 -6,139 1.00
    2026-01-15 30,812 25,299 +5,513 1.00
    2025-12-31 25,299 568,492 -543,193 1.00
    2025-12-15 568,492 5,880 +562,612 3.92
    2025-11-28 5,880 12,685 -6,805 1.00
    2025-11-14 12,685 7,408 +5,277 1.00
    2025-10-31 7,408 21,962 -14,554 1.00

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements