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BLDR · Builders FirstSource, Inc. · Short Volume

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$56.50 -0.51 (-0.89%)
S&P 600 member Russell 1000 member Rebalance outlook locked
Market Cap
$6.19B
Shares
107.60M
Volume · Sep 30 2.14M Avg daily vol (3M) 2.64M

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 %
    2026-09-30 455,223 92 999,532 45.5%
    2026-09-29 425,696 61,061 863,769 49.3%
    2026-09-28 313,807 2 906,414 34.6%
    2026-09-25 223,006 145 654,170 34.1%
    2026-09-24 373,062 3,921 1,269,983 29.4%
    2026-09-23 261,352 2,285 738,944 35.4%
    2026-09-22 358,203 34 1,087,945 32.9%
    2026-09-21 451,681 140 1,492,476 30.3%
    2026-09-18 802,893 8 1,668,086 48.1%
    2026-09-17 581,698 9 1,553,485 37.4%
    2026-09-16 608,959 212 1,157,341 52.6%
    2026-09-15 394,594 0 1,071,798 36.8%
    2026-09-14 391,146 2,657 1,020,325 38.3%
    2026-09-11 411,490 0 930,119 44.2%
    2026-09-10 643,165 3,815 1,714,583 37.5%
    2026-09-09 293,416 69 1,032,457 28.4%
    2026-09-08 475,743 1,696 1,076,440 44.2%
    2026-09-04 377,879 25 1,006,357 37.5%
    2026-09-03 291,810 597 649,761 44.9%
    2026-09-02 292,039 550 933,561 31.3%
    2026-09-01 660,676 4,615 1,791,761 36.9%
    2026-08-31 402,644 0 774,391 52.0%
    2026-08-28 380,973 36 803,954 47.4%
    2026-08-27 380,718 0 843,437 45.1%
    2026-08-26 294,536 0 521,758 56.5%
    2026-08-25 294,875 1,154 762,034 38.7%
    2026-08-24 437,847 0 754,782 58.0%
    2026-08-21 333,706 0 618,586 53.9%
    2026-08-20 418,246 0 700,534 59.7%
    2026-08-19 494,148 325 851,856 58.0%
    2026-08-18 316,200 288 554,002 57.1%
    2026-08-17 392,786 3,215 608,863 64.5%
    2026-08-14 312,315 0 487,983 64.0%
    2026-08-13 372,497 0 624,517 59.6%
    2026-08-12 480,316 40 749,348 64.1%
    2026-08-11 406,476 0 762,819 53.3%
    2026-08-10 383,918 20 739,472 51.9%
    2026-08-07 331,493 124 717,390 46.2%
    2026-08-06 332,296 484 858,883 38.7%
    2026-08-05 315,794 20 584,229 54.1%
    2026-08-04 421,586 0 788,433 53.5%
    2026-08-03 748,932 2,200 1,216,301 61.6%
    2026-07-31 553,900 733 1,050,925 52.7%
    2026-07-30 1,277,576 1,749 1,913,682 66.8%
    2026-07-29 1,410,261 1,042 2,352,712 59.9%
    2026-07-28 414,234 0 729,787 56.8%
    2026-07-27 460,995 108 746,113 61.8%
    2026-07-24 451,443 287 820,231 55.0%
    2026-07-23 413,356 700 738,125 56.0%
    2026-07-22 444,698 0 660,159 67.4%
    Showing 1–50 of 64 days
    Key facts CIK 1316835 CUSIP 12008R107 13F (30d) 26 filings 14 filers Visit website Investor relations