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HALO · Halozyme Therapeutics, Inc. · Short Volume

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$124.37 +1.87 (+1.53%) At close · Oct 20
S&P 400 member Russell 1000 member Rebalance outlook locked
Market Cap
$14.12B
Shares
113.50M
Volume · Oct 20 2.2M Avg daily vol (3M) 2.24M

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 %
    2026-10-20 589,503 810 1,195,786 49.3%
    2026-10-19 823,679 12,946 1,126,814 73.1%
    2026-10-16 525,326 25,826 916,789 57.3%
    2026-10-15 781,016 60 1,244,025 62.8%
    2026-10-14 1,165,353 52,958 1,868,796 62.4%
    2026-10-13 531,421 16,759 897,196 59.2%
    2026-10-12 587,394 400 976,664 60.1%
    2026-10-09 771,078 14,300 1,061,452 72.6%
    2026-10-08 962,210 25,670 1,340,080 71.8%
    2026-10-07 520,609 17,433 1,016,510 51.2%
    2026-10-06 302,441 4,018 666,333 45.4%
    2026-10-05 248,424 21,084 493,974 50.3%
    2026-10-02 646,431 13 956,023 67.6%
    2026-10-01 718,269 3,969 1,155,639 62.2%
    2026-09-30 837,562 190,749 1,266,563 66.1%
    2026-09-29 345,601 1,021 684,924 50.5%
    2026-09-28 579,844 43,300 830,219 69.8%
    2026-09-25 963,873 24,710 1,229,329 78.4%
    2026-09-24 888,142 69,755 1,513,470 58.7%
    2026-09-23 1,056,427 489 1,661,232 63.6%
    2026-09-22 1,618,866 31,844 2,153,226 75.2%
    2026-09-21 1,328,669 9,777 1,780,830 74.6%
    2026-09-18 6,434,462 119,483 6,968,766 92.3%
    2026-09-17 326,582 552 716,189 45.6%
    2026-09-16 386,922 688 736,536 52.5%
    2026-09-15 199,594 185 388,308 51.4%
    2026-09-14 172,211 1,848 341,408 50.4%
    2026-09-11 277,233 5,034 439,831 63.0%
    2026-09-10 173,145 9,977 454,711 38.1%
    2026-09-09 188,101 8,815 525,661 35.8%
    2026-09-08 319,303 23,578 744,031 42.9%
    2026-09-04 161,116 0 407,350 39.6%
    2026-09-03 540,857 56,364 891,588 60.7%
    2026-09-02 393,914 616 688,514 57.2%
    2026-09-01 214,603 1,259 412,461 52.0%
    2026-08-31 147,145 981 416,591 35.3%
    2026-08-28 206,510 928 578,075 35.7%
    2026-08-27 233,451 30,265 566,904 41.2%
    2026-08-26 166,053 6,671 510,487 32.5%
    2026-08-25 443,471 52,772 728,860 60.8%
    2026-08-24 299,343 398 660,253 45.3%
    2026-08-21 303,190 10,386 571,648 53.0%
    2026-08-20 215,157 466 444,350 48.4%
    2026-08-19 565,664 35,716 1,210,217 46.7%
    2026-08-18 403,028 8,058 888,709 45.3%
    2026-08-17 523,027 31,519 1,126,937 46.4%
    2026-08-14 158,467 858 889,257 17.8%
    2026-08-13 349,609 94,474 979,816 35.7%
    2026-08-12 1,336,460 184,264 1,985,358 67.3%
    2026-08-11 1,104,844 62,423 1,533,942 72.0%
    Showing 1–50 of 65 days
    Key facts CIK 1159036 CUSIP 40637H109 13F (30d) 121 filings 118 filers Visit website Investor relations