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SPMB · State Street(R) SPDR(R) Portfolio Mortgage Backed Bond ETF · Short Volume ETF

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$21.36 +0.06 (+0.28%) At close · Oct 20
Volume · Oct 20 3.14M Avg daily vol (3M) 1.65M

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 1,321,416 0 2,216,966 59.6%
    2026-10-19 681,190 0 1,162,275 58.6%
    2026-10-16 1,126,879 533 1,707,941 66.0%
    2026-10-15 1,259,388 0 1,915,483 65.7%
    2026-10-14 1,182,856 0 2,447,208 48.3%
    2026-10-13 757,197 500 1,615,858 46.9%
    2026-10-12 471,200 0 904,104 52.1%
    2026-10-09 608,205 0 1,805,580 33.7%
    2026-10-08 684,111 0 1,467,529 46.6%
    2026-10-07 1,152,867 0 2,152,339 53.6%
    2026-10-06 1,048,441 37,416 1,593,918 65.8%
    2026-10-05 590,855 462 2,515,855 23.5%
    2026-10-02 1,527,889 0 2,451,112 62.3%
    2026-10-01 1,004,856 0 1,807,807 55.6%
    2026-09-30 852,239 0 1,766,571 48.2%
    2026-09-29 902,322 4 1,816,575 49.7%
    2026-09-28 866,868 0 1,473,868 58.8%
    2026-09-25 561,946 0 1,087,134 51.7%
    2026-09-24 190,282 0 1,677,764 11.3%
    2026-09-23 177,651 4,667 2,456,325 7.2%
    2026-09-22 267,044 0 3,995,781 6.7%
    2026-09-21 397,527 0 962,198 41.3%
    2026-09-18 482,453 0 913,675 52.8%
    2026-09-17 494,557 67 846,678 58.4%
    2026-09-16 690,855 0 1,087,822 63.5%
    2026-09-15 337,826 0 698,789 48.3%
    2026-09-14 418,612 0 751,787 55.7%
    2026-09-11 475,885 0 1,019,386 46.7%
    2026-09-10 576,603 263 1,135,867 50.8%
    2026-09-09 331,152 0 668,421 49.5%
    2026-09-08 323,835 0 625,426 51.8%
    2026-09-04 385,527 500 850,276 45.3%
    2026-09-03 438,764 0 669,988 65.5%
    2026-09-02 324,717 86 850,780 38.2%
    2026-09-01 460,331 0 737,129 62.4%
    2026-08-31 346,082 0 625,355 55.3%
    2026-08-28 237,317 0 756,397 31.4%
    2026-08-27 451,498 0 738,794 61.1%
    2026-08-26 242,273 0 399,630 60.6%
    2026-08-25 388,756 0 622,399 62.5%
    2026-08-24 652,058 0 2,301,185 28.3%
    2026-08-21 430,453 0 569,596 75.6%
    2026-08-20 652,427 0 964,079 67.7%
    2026-08-19 736,740 0 1,048,977 70.2%
    2026-08-18 394,460 4,158 568,073 69.4%
    2026-08-17 699,171 0 981,387 71.2%
    2026-08-14 759,451 0 1,085,240 70.0%
    2026-08-13 634,848 22,700 1,058,219 60.0%
    2026-08-12 414,786 2,748 640,066 64.8%
    2026-08-11 908,538 10,200 1,003,608 90.5%
    Showing 1–50 of 65 days