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ASTC · ASTROTECH Corp · Short Volume

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$6.81 -0.03 (-0.44%) At close · Oct 9
Rebalance outlook locked
Market Cap
$13.68M
Shares
2.01M
Volume · Oct 9 15.96K Avg daily vol (3M) 128.1K

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 %
    2026-10-09 2,911 0 6,446 45.2%
    2026-10-08 5,997 0 10,646 56.3%
    2026-10-07 6,679 0 10,260 65.1%
    2026-10-06 11,880 0 16,758 70.9%
    2026-10-05 5,368 0 11,282 47.6%
    2026-10-02 4,366 0 12,256 35.6%
    2026-10-01 4,411 0 9,657 45.7%
    2026-09-30 8,225 262 19,139 43.0%
    2026-09-29 5,277 222 9,844 53.6%
    2026-09-28 16,076 0 31,086 51.7%
    2026-09-25 2,639 0 6,036 43.7%
    2026-09-24 4,758 0 13,050 36.5%
    2026-09-23 20,573 0 28,903 71.2%
    2026-09-22 19,184 0 30,165 63.6%
    2026-09-21 4,785 50 11,469 41.7%
    2026-09-18 5,814 266 12,326 47.2%
    2026-09-17 7,459 5 11,871 62.8%
    2026-09-16 14,231 500 25,344 56.2%
    2026-09-15 6,169 0 9,595 64.3%
    2026-09-14 22,319 0 28,083 79.5%
    2026-09-11 4,535 0 12,951 35.0%
    2026-09-10 6,692 0 21,584 31.0%
    2026-09-09 6,814 0 12,530 54.4%
    2026-09-08 12,908 320 15,835 81.5%
    2026-09-04 12,644 0 17,963 70.4%
    2026-09-03 9,921 0 12,435 79.8%
    2026-09-02 3,908 0 7,118 54.9%
    2026-09-01 5,621 0 7,887 71.3%
    2026-08-31 11,058 0 17,787 62.2%
    2026-08-28 6,443 0 11,053 58.3%
    2026-08-27 9,760 0 12,920 75.5%
    2026-08-26 9,758 265 16,755 58.2%
    2026-08-25 18,334 1,323 31,839 57.6%
    2026-08-24 11,652 46 18,073 64.5%
    2026-08-21 7,668 4 14,516 52.8%
    2026-08-20 41,132 16 77,571 53.0%
    2026-08-19 12,802 0 22,887 55.9%
    2026-08-18 6,629 71 16,988 39.0%
    2026-08-17 27,439 16,790 42,215 65.0%
    2026-08-14 13,556 1,650 27,585 49.1%
    2026-08-13 48,807 145 76,962 63.4%
    2026-08-12 25,671 411 59,151 43.4%
    2026-08-11 82,018 635 141,967 57.8%
    2026-08-10 125,917 360 196,502 64.1%
    2026-08-07 36,927 8 76,915 48.0%
    2026-08-06 104,169 1,358 180,181 57.8%
    2026-08-05 1,364,789 34,269 2,298,265 59.4%
    2026-08-04 9,675 101 16,269 59.5%
    2026-08-03 10,792 0 18,730 57.6%
    2026-07-31 11,467 0 17,778 64.5%
    Showing 1–50 of 64 days
    Key facts CIK 1001907 CUSIP 046484309 13F (30d) 1 filings 1 filers Visit website Investor relations