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QSI · Quantum-Si Inc · Short Volume

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$1.17 +0.08 (+7.34%)
Rebalance outlook locked
Market Cap
$238.58M
Shares
218.88M
Volume · Oct 20 6.16M Avg daily vol (3M) 5.27M

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 %
    2026-10-20 1,481,314 720 3,575,597 41.4%
    2026-10-19 2,129,242 620,220 5,222,309 40.8%
    2026-10-16 2,212,849 388,595 4,773,876 46.4%
    2026-10-15 1,423,870 91,948 5,066,518 28.1%
    2026-10-14 1,067,522 1,917 2,875,458 37.1%
    2026-10-13 2,207,460 291,075 3,962,705 55.7%
    2026-10-12 2,496,679 401,055 5,853,191 42.7%
    2026-10-09 12,538,343 25,474 25,798,015 48.6%
    2026-10-08 1,086,331 222,103 2,780,531 39.1%
    2026-10-07 2,219,560 304,188 4,831,625 45.9%
    2026-10-06 2,604,632 342,616 5,132,850 50.7%
    2026-10-05 10,181,407 871,619 14,275,540 71.3%
    2026-10-02 4,104,018 572,261 11,080,858 37.0%
    2026-10-01 9,390,366 247,435 20,255,690 46.4%
    2026-09-30 4,559,286 45,054 8,812,767 51.7%
    2026-09-29 10,002,055 136,713 18,128,737 55.2%
    2026-09-28 588,365 14,103 1,013,889 58.0%
    2026-09-25 1,006,988 12,269 1,857,104 54.2%
    2026-09-24 407,539 0 930,355 43.8%
    2026-09-23 573,061 324 934,740 61.3%
    2026-09-22 833,216 9,000 1,635,455 50.9%
    2026-09-21 269,157 0 454,578 59.2%
    2026-09-18 292,066 0 705,079 41.4%
    2026-09-17 825,785 27,876 1,871,244 44.1%
    2026-09-16 257,041 300 492,693 52.2%
    2026-09-15 461,162 0 748,706 61.6%
    2026-09-14 584,438 0 931,840 62.7%
    2026-09-11 401,021 2,200 708,170 56.6%
    2026-09-10 511,294 6,100 862,199 59.3%
    2026-09-09 568,631 0 848,994 67.0%
    2026-09-08 307,348 0 657,237 46.8%
    2026-09-04 386,436 0 643,238 60.1%
    2026-09-03 384,815 15 662,988 58.0%
    2026-09-02 726,925 14,300 1,246,117 58.3%
    2026-09-01 525,638 800 1,020,099 51.5%
    2026-08-31 472,381 500 693,666 68.1%
    2026-08-28 877,614 0 1,355,533 64.7%
    2026-08-27 534,566 34 916,584 58.3%
    2026-08-26 871,346 0 1,883,394 46.3%
    2026-08-25 1,254,290 202,938 3,137,933 40.0%
    2026-08-24 1,317,268 25,971 2,494,514 52.8%
    2026-08-21 1,988,027 25,052 5,282,953 37.6%
    2026-08-20 1,123,992 2,549 2,063,542 54.5%
    2026-08-19 838,379 69,508 1,734,751 48.3%
    2026-08-18 629,710 0 952,622 66.1%
    2026-08-17 815,250 271,649 1,593,164 51.2%
    2026-08-14 2,157,719 174,048 4,539,134 47.5%
    2026-08-13 1,370,045 54,140 2,368,171 57.9%
    2026-08-12 507,036 266 955,775 53.0%
    2026-08-11 806,593 21,665 1,571,349 51.3%
    Showing 1–50 of 66 days
    Key facts CIK 1816431 CUSIP 74765K105 13F (30d) 11 filings 11 filers Visit website Investor relations