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SIZE · iShares MSCI USA Size Factor ETF ETF

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$182.84 -0.60 (-0.33%) 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.

Off-Exchange Volume History

Week Start ATS Volume Non-ATS OTC Volume Total Off-Exchange % of FINRA Weekly Volume
2026-07-27 2,893 5,774 8,667 42.3%
2026-07-20 893 7,704 8,597 52.1%
2026-07-13 7,464 9,730 17,194 52.3%
2026-07-06 1,405 6,230 7,635 49.3%
2026-06-29 945 15,383 16,328 53.0%
2026-06-22 4,374 19,646 24,020 79.5%
2026-06-15 1,837 6,072 7,909 52.0%
2026-06-08 2,380 9,016 11,396 48.9%
2026-06-01 2,270 12,693 14,963 74.8%
2026-05-25 1,869 35,744 37,613 74.6%
2026-05-18 10,100 8,004 18,104 51.0%
2026-05-11 3,288 10,904 14,192 49.6%
2026-05-04 2,065 14,431 16,496 45.9%
2026-04-27 1,005 14,672 15,677 72.9%
2026-04-20 1,572 11,215 12,787 44.4%
2026-04-13 2,388 23,845 26,233 75.2%
2026-04-06 3,904 14,516 18,420 53.7%
2026-03-30 4,491 8,443 12,934 50.9%
2026-03-23 6,183 51,572 57,755 61.6%
2026-03-16 1,545 16,212 17,757 72.2%
2026-03-09 1,954 18,522 20,476 64.2%
2026-03-02 1,155 9,407 10,562 46.7%
2026-02-23 1,808 18,928 20,736 73.0%
2026-02-16 655 18,034 18,689 100.0%
2026-02-09 3,040 14,367 17,407 64.7%
2026-02-02 936 9,920 10,856 66.6%
2026-01-26 1,621 16,631 18,252 73.0%
2026-01-19 489 11,327 11,816 69.5%
2026-01-12 1,736 11,065 12,801 56.1%
2026-01-05 2,427 21,688 24,115 72.9%
2025-12-29 2,071 7,398 9,469 62.7%
2025-12-22 1,608 9,127 10,735 31.8%
2025-12-15 2,742 17,698 20,440 53.5%
2025-12-08 1,979 35,258 37,237 100.0%
2025-12-01 23,884 9,668 33,552 77.5%
2025-11-24 1,035 14,836 15,871 67.5%
2025-11-17 6,007 11,364 17,371 58.5%
2025-11-10 1,709 42,291 44,000 85.1%
2025-11-03 2,162 13,280 15,442 63.8%
2025-10-27 1,735 14,706 16,441 71.2%
2025-10-20 1,515 13,837 15,352 67.0%
2025-10-13 425 7,012 7,437 48.0%
2025-10-06 1,482 19,122 20,604 64.4%
2025-09-29 3,609 11,030 14,639 53.8%
2025-09-22 2,562 24,005 26,567 75.9%
2025-09-15 1,004 12,907 13,911 56.3%
2025-09-08 4,485 20,585 25,070 74.8%
Showing 1–47 of 47 weeks