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SEMI · Columbia Select Technology ETF ETF

Alerts for SEMI
$38.53 +0.50 (+1.30%) 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 2,165 51,347 53,512 71.2%
2026-07-20 5,813 18,421 24,234 71.5%
2026-07-13 629 19,892 20,521 74.4%
2026-07-06 5,103 30,122 35,225 70.9%
2026-06-29 2,436 29,059 31,495 69.5%
2026-06-22 7,514 31,512 39,026 63.5%
2026-06-15 2,882 21,362 24,244 57.3%
2026-06-08 2,103 17,611 19,714 61.4%
2026-06-01 5,637 28,232 33,869 57.9%
2026-05-25 4,264 21,060 25,324 57.8%
2026-05-18 69,329 256,317 325,646 91.6%
2026-05-11 7,491 25,652 33,143 67.5%
2026-05-04 3,540 19,903 23,443 63.2%
2026-04-27 2,300 16,090 18,390 68.4%
2026-04-20 7,296 35,148 42,444 65.6%
2026-04-13 2,754 23,277 26,031 64.3%
2026-04-06 11,466 19,180 30,646 58.7%
2026-03-30 9,076 61,599 70,675 71.5%
2026-03-23 2,838 31,495 34,333 60.9%
2026-03-16 7,202 27,220 34,422 66.6%
2026-03-09 5,388 44,189 49,577 56.7%
2026-03-02 4,262 27,961 32,223 49.8%
2026-02-23 1,618 18,935 20,553 50.9%
2026-02-16 1,379 17,195 18,574 74.3%
2026-02-09 4,753 49,808 54,561 72.2%
2026-02-02 4,469 35,775 40,244 72.1%
2026-01-26 5,940 50,827 56,767 64.0%
2026-01-19 4,368 26,675 31,043 73.9%
2026-01-12 5,507 42,159 47,666 68.4%
2026-01-05 4,075 68,433 72,508 70.5%
2025-12-29 2,260 41,004 43,264 81.2%
2025-12-22 6,714 17,658 24,372 69.8%
2025-12-15 2,376 32,714 35,090 62.8%
2025-12-08 4,767 21,628 26,395 67.3%
2025-12-01 5,273 24,716 29,989 62.5%
2025-11-24 3,820 15,744 19,564 56.1%
2025-11-17 7,642 38,064 45,706 66.3%
2025-11-10 5,969 24,459 30,428 61.3%
2025-11-03 6,484 21,645 28,129 76.6%
2025-10-27 8,330 85,239 93,569 90.9%
2025-10-20 1,223 5,985 7,208 51.1%
2025-10-13 903 6,183 7,086 50.6%
2025-10-06 5,835 19,318 25,153 65.0%
2025-09-29 865 12,493 13,358 63.9%
2025-09-22 1,259 7,944 9,203 47.9%
2025-09-15 1,840 7,855 9,695 44.9%
2025-09-08 1,909 14,809 16,718 48.9%
Showing 1–47 of 47 weeks