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ALKS · Alkermes plc. · Short Volume

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$43.48 -0.63 (-1.43%) At close · Oct 21
S&P 600 member Russell 2000 member Rebalance outlook locked
Market Cap
$7.36B
Shares
167.76M
Volume · Oct 21 1.81M Avg daily vol (3M) 1.93M

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 %
    2026-10-21 333,441 132 726,079 45.9%
    2026-10-20 537,219 0 860,055 62.5%
    2026-10-19 742,278 1 1,140,085 65.1%
    2026-10-16 565,616 15 926,996 61.0%
    2026-10-15 802,096 0 1,008,909 79.5%
    2026-10-14 307,569 0 540,728 56.9%
    2026-10-13 203,114 1,095 298,392 68.1%
    2026-10-12 986,728 0 1,199,729 82.2%
    2026-10-09 572,893 0 809,152 70.8%
    2026-10-08 963,203 0 1,391,788 69.2%
    2026-10-07 566,784 0 974,186 58.2%
    2026-10-06 400,936 0 640,880 62.6%
    2026-10-05 788,708 368 1,243,928 63.4%
    2026-10-02 480,966 0 846,676 56.8%
    2026-10-01 343,553 147 792,868 43.3%
    2026-09-30 262,028 40 576,973 45.4%
    2026-09-29 495,681 0 1,409,280 35.2%
    2026-09-28 320,623 197 827,444 38.7%
    2026-09-25 375,480 0 966,635 38.8%
    2026-09-24 396,059 25,528 1,092,550 36.3%
    2026-09-23 403,417 0 1,001,978 40.3%
    2026-09-22 500,069 0 899,126 55.6%
    2026-09-21 1,038,022 20 1,784,802 58.2%
    2026-09-18 647,335 0 1,077,601 60.1%
    2026-09-17 253,341 0 595,635 42.5%
    2026-09-16 338,495 0 689,920 49.1%
    2026-09-15 599,367 93 936,686 64.0%
    2026-09-14 383,258 246 668,957 57.3%
    2026-09-11 137,566 157 281,167 48.9%
    2026-09-10 127,272 206 430,854 29.5%
    2026-09-09 142,677 0 443,211 32.2%
    2026-09-08 191,012 0 548,177 34.8%
    2026-09-04 165,944 17 394,908 42.0%
    2026-09-03 113,414 22 299,615 37.9%
    2026-09-02 135,964 0 361,819 37.6%
    2026-09-01 170,185 425 402,833 42.2%
    2026-08-31 215,177 65 455,162 47.3%
    2026-08-28 230,862 0 461,504 50.0%
    2026-08-27 250,401 0 696,071 36.0%
    2026-08-26 126,785 2,400 208,262 60.9%
    2026-08-25 151,561 0 246,935 61.4%
    2026-08-24 202,503 0 477,436 42.4%
    2026-08-21 96,725 0 305,990 31.6%
    2026-08-20 210,296 106 562,158 37.4%
    2026-08-19 78,883 15 461,805 17.1%
    2026-08-18 88,483 1 330,839 26.7%
    2026-08-17 87,298 0 230,942 37.8%
    2026-08-14 192,062 0 347,741 55.2%
    2026-08-13 350,682 0 515,174 68.1%
    2026-08-12 235,546 0 340,480 69.2%
    Showing 1–50 of 65 days
    Key facts CIK 1520262 CUSIP G01767105 13F (30d) 48 filings 48 filers Visit website Investor relations