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TNDM · Tandem Diabetes Care Inc · Short Volume

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$16.31 -0.26 (-1.57%) At close · Sep 30
S&P 600 member Russell 2000 member Rebalance outlook locked
Market Cap
$1.09B
Shares
69.58M
Volume · Sep 30 2.2M Avg daily vol (3M) 1.94M

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 %
    2026-09-30 474,535 0 925,321 51.3%
    2026-09-29 535,476 397 778,403 68.8%
    2026-09-28 826,167 1,512 1,124,111 73.5%
    2026-09-25 616,398 17,549 1,208,972 51.0%
    2026-09-24 616,561 110 1,015,749 60.7%
    2026-09-23 876,870 1,323 1,309,501 67.0%
    2026-09-22 580,744 4,002 1,103,719 52.6%
    2026-09-21 453,310 0 787,292 57.6%
    2026-09-18 372,625 1,841 580,610 64.2%
    2026-09-17 538,038 0 768,305 70.0%
    2026-09-16 768,423 988 1,470,604 52.3%
    2026-09-15 448,178 0 971,447 46.1%
    2026-09-14 363,395 10 768,487 47.3%
    2026-09-11 502,733 592 879,313 57.2%
    2026-09-10 327,231 138 582,183 56.2%
    2026-09-09 432,781 11 641,863 67.4%
    2026-09-08 343,764 0 769,083 44.7%
    2026-09-04 246,329 8 599,587 41.1%
    2026-09-03 249,248 0 619,721 40.2%
    2026-09-02 218,863 2,708 386,365 56.6%
    2026-09-01 220,121 801 315,234 69.8%
    2026-08-31 267,574 286 634,700 42.2%
    2026-08-28 279,426 5 386,092 72.4%
    2026-08-27 257,139 0 425,408 60.4%
    2026-08-26 304,371 156 513,092 59.3%
    2026-08-25 274,376 4,580 489,120 56.1%
    2026-08-24 191,835 11 327,605 58.6%
    2026-08-21 478,533 0 988,068 48.4%
    2026-08-20 337,601 5 751,644 44.9%
    2026-08-19 366,780 0 802,406 45.7%
    2026-08-18 485,841 643 1,259,217 38.6%
    2026-08-17 384,917 962 569,042 67.6%
    2026-08-14 548,075 69,938 876,709 62.5%
    2026-08-13 301,494 4,321 586,003 51.4%
    2026-08-12 394,529 1,506 641,910 61.5%
    2026-08-11 463,935 4,962 773,446 60.0%
    2026-08-10 395,572 1,191 806,747 49.0%
    2026-08-07 1,392,239 2,570 2,318,181 60.1%
    2026-08-06 596,708 577 1,915,525 31.2%
    2026-08-05 1,023,269 57,701 1,612,006 63.5%
    2026-08-04 563,064 48 1,373,616 41.0%
    2026-08-03 488,547 0 1,464,613 33.4%
    2026-07-31 478,022 1 781,666 61.2%
    2026-07-30 534,136 751 914,070 58.4%
    2026-07-29 357,951 9,493 800,862 44.7%
    2026-07-28 407,996 0 625,067 65.3%
    2026-07-27 369,674 867 489,922 75.5%
    2026-07-24 448,748 952 543,756 82.5%
    2026-07-23 349,281 1,998 432,972 80.7%
    2026-07-22 333,537 0 492,546 67.7%
    Showing 1–50 of 64 days
    Key facts CIK 1438133 CUSIP 875372203 13F (30d) 14 filings 8 filers Visit website Investor relations