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MZZ · ProShares UltraShort MidCap400 · Short Interest ETF

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$6.45 -0.12 (-1.86%)
Volume · Oct 20 196 Avg daily vol (3M) 8785

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 →

MZZ Latest Reported Short Interest

FINRA reported 1,271 MZZ shares sold short as of the September 30, 2026 settlement date, a decrease of 67 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 1,271 1,338 -67 1.00
    2026-09-15 1,338 2,111 -773 1.00
    2026-08-31 2,111 1,728 +383 1.00
    2026-08-14 1,728 2,013 -285 1.00
    2026-07-31 2,013 3,562 -1,549 1.00
    2026-07-15 3,562 1,441 +2,121 1.00
    2026-06-30 1,441 1,764 -323 1.00
    2026-06-15 1,764 13,919 -12,155 1.00
    2026-05-29 13,919 13,869 +50 1.46
    2026-05-15 13,869 20,681 -6,812 5.51
    2026-04-30 20,681 13,672 +7,009 2.63
    2026-04-15 13,672 9,237 +4,435 1.00
    2026-03-31 9,237 12,486 -3,249 1.31
    2026-03-13 12,486 16,436 -3,950 1.55
    2026-02-27 16,436 12,853 +3,583 5.58
    2026-02-13 12,853 10,743 +2,110 1.41
    2026-01-30 10,743 10,764 -21 3.46
    2026-01-15 10,764 10,651 +113 7.29
    2025-12-31 10,651 14,262 -3,611 6.35
    2025-12-15 14,262 14,268 -6 8.95
    2025-11-28 14,268 15,283 -1,015 2.19
    2025-11-14 15,283 15,038 +245 4.19
    2025-10-31 15,038 14,721 +317 16.01

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements