CMDB Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
CMDB dark pool volume for the week of 2026-07-06: 47.6K shares traded across 20 ATS venues with a total notional value of $898K. Volume is up 3.1% week-over-week. Primary routing venues include , SIGMA X2, INSTINCT X.
Dark pool activity in CMDB 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 CMDB.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 47.6K | — | +3.1% |
| 2026-06-29 | 46.2K | — | -42.1% |
| 2026-06-22 | 79.9K | — | +123.0% |
| 2026-06-15 | 35.8K | — | -24.6% |
| 2026-06-08 | 47.5K | — | +29.8% |
| 2026-06-01 | 36.6K | — | +13.3% |
| 2026-05-25 | 32.3K | — | +5.4% |
| 2026-05-18 | 30.6K | — | -12.8% |
| 2026-05-11 | 35.1K | — | -29.1% |
| 2026-05-04 | 49.5K | — | +59.0% |
| 2026-04-27 | 31.1K | — | — |
| 2026-03-23 | 40.8K | — | -5.7% |