CPST · Calamos S&P 500 Structured Alt Protection ETF - September ETF
$28.13
-0.05 (-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.
Off-Exchange Volume History
| Week Start | ATS Volume | Non-ATS OTC Volume | Total Off-Exchange | % of FINRA Weekly Volume |
|---|---|---|---|---|
| 2026-07-27 | 2,402 | 15,720 | 18,122 | 79.8% |
| 2026-07-20 | 43 | 1,882 | 1,925 | 41.0% |
| 2026-07-13 | 54 | 2,068 | 2,122 | 66.3% |
| 2026-07-06 | 601 | 169 | 770 | 29.6% |
| 2026-06-29 | 10 | 3,759 | 3,769 | 91.9% |
| 2026-06-22 | 2,131 | 653 | 2,784 | 47.2% |
| 2026-06-15 | 1,054 | 354 | 1,408 | 34.3% |
| 2026-06-08 | 1,857 | 6,153 | 8,010 | 57.6% |
| 2026-06-01 | 20 | 1,189 | 1,209 | 46.5% |
| 2026-05-25 | 75 | 453 | 528 | 37.7% |
| 2026-05-18 | 2,065 | 4,759 | 6,824 | 93.5% |
| 2026-05-11 | 2,275 | 4,926 | 7,201 | 75.8% |
| 2026-05-04 | 400 | 10,880 | 11,280 | 76.2% |
| 2026-04-27 | 4,770 | 4,811 | 9,581 | 61.4% |
| 2026-04-20 | 0 | 1 | 1 | 0.1% |
| 2026-04-13 | 337 | 2,201 | 2,538 | 49.8% |
| 2026-04-06 | 630 | 895 | 1,525 | 23.1% |
| 2026-03-30 | 199 | 828 | 1,027 | 42.8% |
| 2026-03-23 | 361 | 1,240 | 1,601 | 26.2% |
| 2026-03-16 | 0 | 316 | 316 | 19.8% |
| 2026-03-09 | 1,759 | 1,889 | 3,648 | 19.8% |
| 2026-03-02 | 5,248 | 4,150 | 9,398 | 46.8% |
| 2026-02-23 | 1,727 | 4,067 | 5,794 | 46.0% |
| 2026-02-16 | 1,743 | 1,458 | 3,201 | 51.6% |
| 2026-02-09 | 1,163 | 9,371 | 10,534 | 54.0% |
| 2026-02-02 | 2,888 | 3,547 | 6,435 | 33.7% |
| 2026-01-26 | 1,532 | 7,015 | 8,547 | 65.2% |
| 2026-01-19 | 1,519 | 2,220 | 3,739 | 39.8% |
| 2026-01-12 | 1,835 | 3,167 | 5,002 | 72.5% |
| 2026-01-05 | 400 | 3,653 | 4,053 | 65.4% |
| 2025-12-29 | 100 | 1,737 | 1,837 | 65.6% |
| 2025-12-22 | 939 | 4,932 | 5,871 | 67.5% |
| 2025-12-15 | 224 | 2,187 | 2,411 | 43.1% |
| 2025-12-08 | 1,145 | 5,972 | 7,117 | 78.2% |
| 2025-12-01 | 200 | 2,532 | 2,732 | 22.6% |
| 2025-11-24 | 0 | 1,721 | 1,721 | 52.2% |
| 2025-11-17 | 1,676 | 10,458 | 12,134 | 71.4% |
| 2025-11-10 | 1,400 | 6,587 | 7,987 | 60.5% |
| 2025-11-03 | 1,085 | 3,175 | 4,260 | 63.6% |
| 2025-10-27 | 327 | 5,018 | 5,345 | 49.5% |
| 2025-10-20 | 460 | 6,360 | 6,820 | 39.4% |
| 2025-10-13 | 600 | 1,788 | 2,388 | 41.2% |
| 2025-10-06 | 304 | 5,513 | 5,817 | 71.8% |
| 2025-09-29 | 2,944 | 9,880 | 12,824 | 54.6% |
| 2025-09-22 | 531 | 14,395 | 14,926 | 35.8% |
| 2025-09-15 | 0 | 7,561 | 7,561 | 38.8% |
| 2025-09-08 | 9,360 | 21,506 | 30,866 | 71.3% |
Showing 1–47 of 47 weeks