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PZA · Invesco National AMT-Free Municipal Bond ETF · Short Volume ETF

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$21.52 -0.09 (-0.42%) At close · Oct 20
Volume · Oct 20 3.07M Avg daily vol (3M) 3.02M

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 %
    2026-10-20 439,311 0 1,998,362 22.0%
    2026-10-19 584,568 0 2,709,504 21.6%
    2026-10-16 1,708,425 0 4,756,123 35.9%
    2026-10-15 508,182 31,281 2,962,320 17.2%
    2026-10-14 396,330 0 3,885,076 10.2%
    2026-10-13 389,875 0 3,076,499 12.7%
    2026-10-12 232,519 0 2,394,352 9.7%
    2026-10-09 414,477 7,700 2,653,009 15.6%
    2026-10-08 2,159,625 0 5,141,440 42.0%
    2026-10-07 315,798 33,752 2,364,526 13.4%
    2026-10-06 862,631 16,710 4,524,282 19.1%
    2026-10-05 1,542,059 257 3,323,651 46.4%
    2026-10-02 1,037,652 1,552 3,424,449 30.3%
    2026-10-01 520,781 0 2,695,623 19.3%
    2026-09-30 704,825 100 3,796,383 18.6%
    2026-09-29 670,385 1,129 2,640,312 25.4%
    2026-09-28 947,654 300 3,264,820 29.0%
    2026-09-25 1,041,072 974 4,017,981 25.9%
    2026-09-24 834,785 5,577 2,922,096 28.6%
    2026-09-23 897,814 0 3,282,016 27.4%
    2026-09-22 381,945 0 4,226,072 9.0%
    2026-09-21 105,082 0 1,929,517 5.4%
    2026-09-18 1,062,366 100 3,680,169 28.9%
    2026-09-17 359,521 200 2,364,251 15.2%
    2026-09-16 731,835 730 2,268,838 32.3%
    2026-09-15 479,844 1,300 3,734,361 12.8%
    2026-09-14 606,714 300 2,474,975 24.5%
    2026-09-11 746,580 0 4,038,778 18.5%
    2026-09-10 1,294,389 5,482 2,471,600 52.4%
    2026-09-09 1,521,801 1,329 2,075,101 73.3%
    2026-09-08 623,643 0 1,443,162 43.2%
    2026-09-04 2,209,532 628 3,204,720 68.9%
    2026-09-03 262,964 7,759 1,427,488 18.4%
    2026-09-02 207,027 0 3,080,573 6.7%
    2026-09-01 375,738 805 1,587,594 23.7%
    2026-08-31 286,195 0 948,195 30.2%
    2026-08-28 160,855 0 1,064,101 15.1%
    2026-08-27 191,265 0 778,866 24.6%
    2026-08-26 118,146 0 581,589 20.3%
    2026-08-25 935,655 0 2,513,830 37.2%
    2026-08-24 129,573 0 1,476,408 8.8%
    2026-08-21 130,453 4,260 800,613 16.3%
    2026-08-20 220,770 3,684 865,430 25.5%
    2026-08-19 1,587,935 0 4,210,300 37.7%
    2026-08-18 389,868 0 863,396 45.2%
    2026-08-17 299,909 6,734 595,519 50.4%
    2026-08-14 122,083 0 589,218 20.7%
    2026-08-13 437,432 0 915,402 47.8%
    2026-08-12 320,718 1,233 651,651 49.2%
    2026-08-11 104,262 0 459,738 22.7%
    Showing 1–50 of 65 days