Skip to main content
BIS logo

BIS · ProShares UltraShort Nasdaq Biotechnology ETF

Alerts for BIS
$10.97 +0.17 (+1.61%) 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 1,413 14,936 16,349 53.6%
2026-07-20 672 10,152 10,824 59.1%
2026-07-13 1,805 11,047 12,852 49.1%
2026-07-06 4,612 35,180 39,792 50.2%
2026-06-29 319 12,340 12,659 53.2%
2026-06-22 1,406 17,147 18,553 52.4%
2026-06-15 3,378 4,531 7,909 39.5%
2026-06-08 4,471 11,176 15,647 44.3%
2026-06-01 2,440 28,580 31,020 62.4%
2026-05-25 176 5,042 5,218 57.0%
2026-05-18 4,828 36,203 41,031 97.2%
2026-05-11 4,379 45,284 49,663 100.0%
2026-05-04 6,354 35,115 41,469 100.0%
2026-04-27 8,894 80,455 89,349 100.0%
2026-04-20 3,854 66,607 70,461 100.0%
2026-04-13 1,851 24,714 26,565 98.4%
2026-04-06 619 46,763 47,382 100.0%
2026-03-30 8,320 60,862 69,182 100.0%
2026-03-23 4,184 45,939 50,123 100.0%
2026-03-16 2,667 36,689 39,356 93.4%
2026-03-09 2,701 23,411 26,112 90.7%
2026-03-02 1,966 21,829 23,795 88.1%
2026-02-23 6,192 16,540 22,732 100.0%
2026-02-16 92 2,821 2,913 73.7%
2026-02-09 288 7,683 7,971 67.8%
2026-02-02 42,631 40,639 83,270 100.0%
2026-01-26 3,156 31,297 34,453 100.0%
2026-01-19 3,824 43,088 46,912 95.9%
2026-01-12 5,415 45,360 50,775 100.0%
2026-01-05 7,666 42,048 49,714 100.0%
2025-12-29 546 20,148 20,694 100.0%
2025-12-22 6,342 37,723 44,065 70.8%
2025-12-15 5,475 39,578 45,053 66.4%
2025-12-08 361 12,925 13,286 95.2%
2025-12-01 2,782 19,913 22,695 79.5%
2025-11-24 4,870 30,936 35,806 80.0%
2025-11-17 4,810 75,777 80,587 100.0%
2025-11-10 1,534 22,234 23,768 89.4%
2025-11-03 13,441 87,573 101,014 100.0%
2025-10-27 737 12,032 12,769 81.6%
2025-10-20 1,011 8,141 9,152 96.3%
2025-10-13 518 7,250 7,768 52.7%
2025-10-06 2,041 31,457 33,498 100.0%
2025-09-29 1,246 28,662 29,908 100.0%
2025-09-22 3,095 33,752 36,847 90.9%
2025-09-15 2,120 24,549 26,669 100.0%
2025-09-08 1,504 25,745 27,249 100.0%
Showing 1–47 of 47 weeks