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CPSM · Calamos S&P 500 Structured Alt Protection ETF - May · Short Volume ETF

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$29.74 +0.03 (+0.10%) At close · Oct 21
Volume · Oct 21 2828 Avg daily vol (3M) 2289

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 %
    2026-10-21 463 0 1,642 28.2%
    2026-10-19 201 0 495 40.6%
    2026-10-16 354 0 972 36.4%
    2026-10-15 1,224 0 1,554 78.8%
    2026-10-14 340 0 631 53.9%
    2026-10-13 37 0 273 13.5%
    2026-10-12 21 0 51 41.0%
    2026-10-09 1,065 0 1,072 99.3%
    2026-10-08 1 0 430 0.2%
    2026-10-06 932 0 994 93.8%
    2026-10-05 1,104 0 2,221 49.7%
    2026-10-01 600 0 633 94.7%
    2026-09-30 0 0 358 0.0%
    2026-09-28 720 0 1,253 57.5%
    2026-09-25 400 0 1,695 23.6%
    2026-09-23 487 0 6,874 7.1%
    2026-09-22 190 0 1,929 9.8%
    2026-09-21 683 0 1,662 41.1%
    2026-09-18 107 0 2,170 4.9%
    2026-09-17 197 0 280 70.2%
    2026-09-14 102 0 383 26.6%
    2026-09-09 50 0 248 20.2%
    2026-09-08 206 0 9,387 2.2%
    2026-09-03 798 0 942 84.7%
    2026-09-02 145 0 728 19.9%
    2026-09-01 1,641 0 3,089 53.1%
    2026-08-31 1 0 148 0.7%
    2026-08-28 11 0 229 4.8%
    2026-08-27 1,002 0 4,644 21.6%
    2026-08-26 0 0 15 0.2%
    2026-08-25 8 0 622 1.3%
    2026-08-24 400 0 921 43.5%
    2026-08-21 1 0 1 100.0%
    2026-08-20 301 0 1,698 17.7%
    2026-08-19 173 0 219 79.2%
    2026-08-18 541 0 564 95.9%
    2026-08-17 1,127 0 2,091 53.9%
    2026-08-14 137 0 552 24.8%
    2026-08-13 288 0 577 49.9%
    2026-08-12 50 0 143 35.0%
    2026-08-11 510 0 559 91.3%
    2026-08-07 69 0 190 36.4%
    2026-08-06 20 0 216 9.3%
    2026-08-05 363 0 407 89.1%
    2026-08-04 840 0 5,661 14.8%
    2026-08-03 1,039 0 2,017 51.5%
    2026-07-31 404 0 821 49.2%
    2026-07-30 661 0 1,013 65.3%
    2026-07-29 3,338 0 3,772 88.5%
    2026-07-28 118 0 646 18.3%
    Showing 1–50 of 54 days