ATCH Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
ATCH dark pool volume for the week of 2026-07-06: 148.0K shares traded across 19 ATS venues with a total notional value of $27K. Volume is down 33.2% week-over-week. Primary routing venues include , IBKR ATS, INTELLIGENT CROSS LLC.
Dark pool activity in ATCH 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 ATCH.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 148.0K | — | -33.2% |
| 2026-06-29 | 221.7K | — | -46.5% |
| 2026-06-22 | 414.1K | — | +44.3% |
| 2026-06-15 | 287.0K | — | -29.9% |
| 2026-06-08 | 409.6K | — | +16.0% |
| 2026-06-01 | 353.1K | — | -16.0% |
| 2026-05-25 | 420.5K | — | +32.3% |
| 2026-05-18 | 317.8K | — | -35.3% |
| 2026-05-11 | 491.1K | — | -41.6% |
| 2026-05-04 | 841.4K | — | +81.1% |
| 2026-04-27 | 464.6K | — | — |
| 2026-03-23 | 593.4K | — | -5.5% |