COLL Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
COLL dark pool volume for the week of 2026-07-06: 752.2K shares traded across 24 ATS venues with a total notional value of $27.6M. Volume is up 45.2% week-over-week. Primary routing venues include , INTELLIGENT CROSS LLC, SIGMA X2.
Dark pool activity in COLL reflects institutional order flow executing on Alternative Trading Systems (ATS) registered with the SEC — private venues where large-block trades are matched away from public exchanges to minimize price impact. StonkWhisper ingests FINRA-published ATS volume data to track these off-exchange flows. Sustained elevation in dark pool percentage — particularly when concentrated at specific venues — can indicate institutional accumulation or distribution ahead of significant price moves. The interactive charts below show 12-week historical volume and complete venue breakdown for COLL.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 752.2K | — | +45.2% |
| 2026-06-29 | 518.2K | — | -24.3% |
| 2026-06-22 | 684.8K | — | +118.8% |
| 2026-06-15 | 312.9K | — | -36.3% |
| 2026-06-08 | 491.3K | — | -19.5% |
| 2026-06-01 | 610.1K | — | +74.4% |
| 2026-05-25 | 349.9K | — | +2.6% |
| 2026-05-18 | 341.0K | — | -45.6% |
| 2026-05-11 | 626.3K | — | -31.4% |
| 2026-05-04 | 912.5K | — | +52.2% |
| 2026-04-27 | 599.6K | — | — |
| 2026-03-23 | 864.2K | — | -13.9% |