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MKSI · Mks Inc · Short Volume

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$265.36 -0.66 (-0.25%) At close · Sep 30
S&P 400 member Russell 1000 member Rebalance outlook locked
Market Cap
$17.64B
Shares
67.62M
Volume · Sep 30 751.54K Avg daily vol (3M) 1.39M

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 %
    2026-09-30 112,504 0 236,923 47.5%
    2026-09-29 181,077 18 333,642 54.3%
    2026-09-28 210,729 38 405,568 52.0%
    2026-09-25 137,499 20 225,573 61.0%
    2026-09-24 164,425 26 292,509 56.2%
    2026-09-23 897,522 5 1,063,711 84.4%
    2026-09-22 147,250 68 384,393 38.3%
    2026-09-21 202,762 11 349,650 58.0%
    2026-09-18 200,224 59 428,726 46.7%
    2026-09-17 146,019 11 340,360 42.9%
    2026-09-16 122,497 0 325,774 37.6%
    2026-09-15 182,243 3,028 691,216 26.4%
    2026-09-14 215,682 2,732 588,275 36.7%
    2026-09-11 164,816 1,218 317,132 52.0%
    2026-09-10 223,811 13 433,502 51.6%
    2026-09-09 303,907 13 555,520 54.7%
    2026-09-08 286,936 53 826,931 34.7%
    2026-09-04 329,823 358 594,693 55.5%
    2026-09-03 206,940 8 471,466 43.9%
    2026-09-02 188,707 1,102 518,303 36.4%
    2026-09-01 203,869 6,575 763,374 26.7%
    2026-08-31 202,309 1 408,323 49.5%
    2026-08-28 188,777 8 643,621 29.3%
    2026-08-27 145,270 6,586 322,789 45.0%
    2026-08-26 409,995 117 630,220 65.1%
    2026-08-25 275,335 0 550,087 50.1%
    2026-08-24 326,030 83 815,049 40.0%
    2026-08-21 99,809 0 381,344 26.2%
    2026-08-20 92,673 0 338,573 27.4%
    2026-08-19 211,098 0 813,352 26.0%
    2026-08-18 209,686 1 667,674 31.4%
    2026-08-17 188,409 63 391,877 48.1%
    2026-08-14 192,723 0 417,948 46.1%
    2026-08-13 180,434 0 430,561 41.9%
    2026-08-12 278,607 1,117 625,094 44.6%
    2026-08-11 91,119 9 302,499 30.1%
    2026-08-10 142,193 455 383,711 37.1%
    2026-08-07 170,737 780 497,455 34.3%
    2026-08-06 266,440 5,577 1,253,356 21.3%
    2026-08-05 311,810 7,797 924,225 33.7%
    2026-08-04 461,867 33 740,401 62.4%
    2026-08-03 332,366 0 643,816 51.6%
    2026-07-31 193,265 241 471,303 41.0%
    2026-07-30 527,306 7,406 1,508,923 34.9%
    2026-07-29 252,091 2,285 939,804 26.8%
    2026-07-28 293,878 12,071 824,763 35.6%
    2026-07-27 201,419 0 606,222 33.2%
    2026-07-24 144,544 0 379,888 38.0%
    2026-07-23 133,746 0 286,131 46.7%
    2026-07-22 166,543 200 385,748 43.2%
    Showing 1–50 of 64 days
    Key facts CIK 1049502 CUSIP 55306N104 13F (30d) 13 filings 13 filers Visit website Investor relations