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BIS · ProShares UltraShort Nasdaq Biotechnology · Short Volume ETF

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$11.21 +0.18 (+1.61%)
Volume · Oct 22 12.46K Avg daily vol (3M) 8695

Daily short-sale volume published by FINRA from its trade-reporting facilities. It measures how many shares were sold short each day as a share of total volume — a daily flow, not the total outstanding short position.

Pull daily short volume through the short interest API or MCP →
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    • Short Volume

    Date Short Volume Short Exempt Total Volume Short %
    2026-10-22 1,137 0 7,426 15.3%
    2026-10-21 361 0 7,373 4.9%
    2026-10-20 4,856 0 8,617 56.4%
    2026-10-19 803 0 1,354 59.3%
    2026-10-16 1,226 0 5,212 23.5%
    2026-10-15 2,268 0 6,255 36.3%
    2026-10-14 2,820 0 5,075 55.6%
    2026-10-13 5,753 0 11,756 48.9%
    2026-10-12 2,112 0 8,662 24.4%
    2026-10-09 3,715 0 7,983 46.5%
    2026-10-08 1,675 0 5,645 29.7%
    2026-10-07 1,016 0 1,427 71.2%
    2026-10-06 555 0 2,146 25.9%
    2026-10-05 2,202 0 6,225 35.4%
    2026-10-02 2,192 0 2,397 91.5%
    2026-10-01 2,032 0 9,748 20.8%
    2026-09-30 2,822 0 4,141 68.1%
    2026-09-29 2,846 0 7,032 40.5%
    2026-09-28 1,175 0 2,590 45.4%
    2026-09-25 2,861 0 5,712 50.1%
    2026-09-24 842 0 2,407 35.0%
    2026-09-23 2,356 0 4,154 56.7%
    2026-09-22 1,304 0 5,066 25.7%
    2026-09-21 2,020 0 2,687 75.2%
    2026-09-18 523 0 1,487 35.2%
    2026-09-17 1,429 0 4,492 31.8%
    2026-09-16 1,491 0 2,104 70.8%
    2026-09-15 355 0 627 56.6%
    2026-09-14 678 0 2,522 26.9%
    2026-09-11 1,545 0 3,310 46.7%
    2026-09-10 2,315 0 5,004 46.3%
    2026-09-09 1,368 0 2,547 53.7%
    2026-09-08 1,825 0 2,973 61.4%
    2026-09-04 379 0 779 48.7%
    2026-09-03 1,393 0 5,217 26.7%
    2026-09-02 825 0 4,443 18.6%
    2026-09-01 1,901 0 3,074 61.9%
    2026-08-31 1,934 0 2,645 73.1%
    2026-08-28 257 0 1,934 13.3%
    2026-08-27 1,046 0 1,808 57.8%
    2026-08-26 1,367 0 1,781 76.7%
    2026-08-25 274 0 444 61.7%
    2026-08-24 841 0 1,790 47.0%
    2026-08-21 1,474 0 6,490 22.7%
    2026-08-20 3,977 2,330 8,265 48.1%
    2026-08-19 5,194 2,774 9,842 52.8%
    2026-08-18 444 0 2,567 17.3%
    2026-08-17 6,324 0 9,502 66.6%
    2026-08-14 2,243 0 4,620 48.6%
    2026-08-13 3,413 0 6,478 52.7%
    Showing 1–50 of 66 days