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IVOO · VANGUARD S&P MID-CAP 400 INDEX FUND ETF

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$128.39 +0.21 (+0.16%) 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 55,768 146,498 202,266 61.0%
2026-07-20 55,035 206,676 261,711 66.4%
2026-07-13 31,550 161,924 193,474 60.7%
2026-07-06 43,493 169,106 212,599 54.1%
2026-06-29 34,875 399,907 434,782 75.2%
2026-06-22 95,787 200,881 296,668 62.7%
2026-06-15 47,626 181,268 228,894 71.6%
2026-06-08 62,386 172,037 234,423 63.9%
2026-06-01 38,897 171,644 210,541 69.3%
2026-05-25 30,709 121,617 152,326 70.2%
2026-05-18 108,300 147,194 255,494 67.2%
2026-05-11 38,555 192,248 230,803 73.7%
2026-05-04 42,831 263,727 306,558 74.6%
2026-04-27 46,161 242,578 288,739 69.5%
2026-04-20 51,720 190,602 242,322 61.9%
2026-04-13 39,144 200,332 239,476 69.8%
2026-04-06 118,568 231,211 349,779 67.0%
2026-03-30 40,413 207,497 247,910 66.5%
2026-03-23 69,066 224,183 293,249 60.9%
2026-03-16 40,812 196,353 237,165 59.0%
2026-03-09 50,444 249,014 299,458 62.4%
2026-03-02 62,809 257,001 319,810 62.8%
2026-02-23 47,797 244,948 292,745 78.1%
2026-02-16 42,339 174,436 216,775 61.0%
2026-02-09 56,460 255,739 312,199 73.7%
2026-02-02 82,525 283,467 365,992 61.4%
2026-01-26 44,529 267,618 312,147 69.1%
2026-01-19 42,928 186,994 229,922 53.3%
2026-01-12 64,484 211,328 275,812 74.5%
2026-01-05 301,676 287,617 589,293 77.4%
2025-12-29 33,057 181,492 214,549 62.3%
2025-12-22 48,521 150,465 198,986 71.8%
2025-12-15 22,310 171,273 193,583 66.3%
2025-12-08 52,898 175,734 228,632 68.5%
2025-12-01 49,250 137,462 186,712 67.5%
2025-11-24 26,311 118,945 145,256 71.1%
2025-11-17 41,685 358,899 400,584 73.2%
2025-11-10 34,946 189,114 224,060 71.2%
2025-11-03 30,535 188,178 218,713 68.5%
2025-10-27 59,337 201,436 260,773 73.0%
2025-10-20 32,385 166,651 199,036 63.7%
2025-10-13 28,092 204,380 232,472 68.6%
2025-10-06 39,509 169,120 208,629 56.4%
2025-09-29 29,549 157,332 186,881 64.3%
2025-09-22 24,746 143,429 168,175 65.4%
2025-09-15 24,238 137,640 161,878 62.6%
2025-09-08 45,793 129,925 175,718 65.8%
Showing 1–47 of 47 weeks