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MRK · Merck & Co., Inc. · Short Volume

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$140.53 -4.75 (-3.27%)
S&P 500 member Russell 1000 member Dow 30 member Rebalance outlook locked
Market Cap
$358.41B
Shares
2.47B
Volume · Oct 26 8.27M Avg daily vol (3M) 10.06M

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 %
    2026-10-23 1,320,675 3,152 3,126,059 42.2%
    2026-10-22 4,162,520 2,826 8,572,520 48.6%
    2026-10-21 1,324,420 1,155 2,978,049 44.5%
    2026-10-20 1,047,596 25,913 2,970,591 35.3%
    2026-10-19 850,022 18,772 3,505,843 24.2%
    2026-10-16 1,455,162 3,715 3,522,471 41.3%
    2026-10-15 1,777,973 3,660 4,326,863 41.1%
    2026-10-14 2,223,694 4,001 4,348,427 51.1%
    2026-10-13 700,251 1,454 2,590,092 27.0%
    2026-10-12 872,913 3,170 2,146,186 40.7%
    2026-10-09 1,504,159 2,484 2,965,767 50.7%
    2026-10-08 1,203,592 5,578 3,192,995 37.7%
    2026-10-07 862,995 5,825 2,181,884 39.6%
    2026-10-06 1,229,192 6,938 3,078,256 39.9%
    2026-10-05 822,042 3,045 3,426,768 24.0%
    2026-10-02 932,250 1,229 2,855,193 32.7%
    2026-10-01 749,723 3,945 2,790,609 26.9%
    2026-09-30 657,246 5,796 3,264,113 20.1%
    2026-09-29 717,322 6,599 2,844,066 25.2%
    2026-09-28 1,222,658 18,757 3,181,221 38.4%
    2026-09-25 1,127,329 15,941 3,094,798 36.4%
    2026-09-24 580,383 4,722 3,849,666 15.1%
    2026-09-23 504,059 3,964 3,158,707 16.0%
    2026-09-22 1,309,098 22,333 3,840,268 34.1%
    2026-09-21 816,897 954 2,537,736 32.2%
    2026-09-18 1,224,714 10,756 2,386,280 51.3%
    2026-09-17 1,063,486 15,016 2,290,651 46.4%
    2026-09-16 1,106,755 1,547 2,371,657 46.7%
    2026-09-15 1,461,338 6,404 2,590,395 56.4%
    2026-09-14 1,480,255 22,764 3,125,534 47.4%
    2026-09-11 1,284,850 5,583 2,884,518 44.5%
    2026-09-10 1,299,359 2,976 2,692,376 48.3%
    2026-09-09 1,344,176 8,645 2,366,571 56.8%
    2026-09-08 2,119,362 4,024 3,314,124 63.9%
    2026-09-04 823,947 6,017 1,728,283 47.7%
    2026-09-03 1,126,136 12,297 2,532,784 44.5%
    2026-09-02 1,708,856 7,571 2,997,364 57.0%
    2026-09-01 1,964,035 16,233 3,417,680 57.5%
    2026-08-31 1,129,181 8,422 2,264,094 49.9%
    2026-08-28 1,237,099 7,068 2,913,927 42.5%
    2026-08-27 1,573,356 23,005 3,229,555 48.7%
    2026-08-26 1,936,691 23,479 3,806,498 50.9%
    2026-08-25 2,729,172 54,563 5,554,453 49.1%
    2026-08-24 2,035,010 6,776 5,693,265 35.7%
    2026-08-21 2,586,442 60,919 6,519,295 39.7%
    2026-08-20 3,280,899 139,868 7,128,892 46.0%
    2026-08-19 4,647,750 153,666 13,618,492 34.1%
    2026-08-18 1,103,812 58,898 3,409,419 32.4%
    2026-08-17 1,431,986 126,139 2,876,835 49.8%
    2026-08-14 1,119,042 41,942 2,046,458 54.7%
    Showing 1–50 of 64 days
    Key facts CIK 310158 CUSIP 58933Y105 13F (30d) 1329 filings 1292 filers Visit website Investor relations