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VIOO · VANGUARD S&P SMALL-CAP 600 INDEX FUND ETF

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$134.78 +0.47 (+0.35%) At close · Sep 4

Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.

1M 3M 6M 1Y 5Y All

Off-Exchange Volume History

Week Start ATS Volume Non-ATS OTC Volume Total Off-Exchange % of FINRA Weekly Volume
2026-07-27 33,479 200,892 234,371 66.4%
2026-07-20 19,214 187,741 206,955 72.6%
2026-07-13 31,427 197,417 228,844 71.0%
2026-07-06 29,178 207,947 237,125 72.1%
2026-06-29 39,359 585,188 624,547 87.7%
2026-06-22 17,002 190,897 207,899 79.0%
2026-06-15 15,291 158,629 173,920 80.1%
2026-06-08 22,416 207,745 230,161 79.6%
2026-06-01 20,648 324,653 345,301 85.6%
2026-05-25 32,002 143,298 175,300 79.3%
2026-05-18 20,237 191,457 211,694 76.6%
2026-05-11 50,168 200,021 250,189 72.9%
2026-05-04 65,888 472,630 538,518 81.1%
2026-04-27 56,412 291,628 348,040 76.0%
2026-04-20 91,759 222,235 313,994 77.5%
2026-04-13 56,223 221,733 277,956 71.3%
2026-04-06 92,389 449,319 541,708 77.3%
2026-03-30 169,663 255,649 425,312 66.3%
2026-03-23 145,614 270,939 416,553 56.0%
2026-03-16 72,759 188,141 260,900 67.7%
2026-03-09 155,011 307,311 462,322 72.0%
2026-03-02 79,696 323,965 403,661 74.8%
2026-02-23 57,535 332,784 390,319 77.1%
2026-02-16 50,152 310,053 360,205 77.2%
2026-02-09 102,773 441,363 544,136 73.8%
2026-02-02 83,417 452,575 535,992 76.3%
2026-01-26 80,709 345,094 425,803 72.6%
2026-01-19 60,634 273,504 334,138 70.3%
2026-01-12 59,741 307,852 367,593 81.7%
2026-01-05 70,520 325,016 395,536 79.0%
2025-12-29 67,306 203,161 270,467 71.4%
2025-12-22 73,439 370,809 444,248 72.4%
2025-12-15 58,792 334,802 393,594 70.5%
2025-12-08 61,007 393,077 454,084 76.5%
2025-12-01 49,336 199,513 248,849 68.8%
2025-11-24 50,926 189,440 240,366 72.9%
2025-11-17 45,699 206,519 252,218 71.7%
2025-11-10 46,151 319,713 365,864 76.6%
2025-11-03 42,947 321,392 364,339 77.3%
2025-10-27 67,915 193,012 260,927 69.4%
2025-10-20 76,483 215,460 291,943 69.8%
2025-10-13 45,586 221,666 267,252 74.6%
2025-10-06 60,677 186,184 246,861 65.6%
2025-09-29 59,895 192,791 252,686 59.7%
2025-09-22 53,172 182,571 235,743 65.3%
2025-09-15 77,420 221,407 298,827 58.3%
2025-09-08 64,614 552,266 616,880 70.7%
Showing 1–47 of 47 weeks