PMAX Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
PMAX dark pool volume for the week of 2026-07-06: 52.5K shares traded across 20 ATS venues with a total notional value of $89K. Volume is up 22.6% week-over-week. Primary routing venues include , SIGMA X2, BOATS.
Dark pool activity in PMAX 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 PMAX.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 52.5K | — | +22.6% |
| 2026-06-29 | 42.8K | — | -17.2% |
| 2026-06-22 | 51.7K | — | -18.3% |
| 2026-06-15 | 63.3K | — | -65.7% |
| 2026-06-08 | 184.4K | — | +355.4% |
| 2026-06-01 | 40.5K | — | +50.5% |
| 2026-05-25 | 26.9K | — | -48.1% |
| 2026-05-18 | 51.9K | — | -79.9% |
| 2026-05-11 | 258.0K | — | -89.1% |
| 2026-05-04 | 2.4M | — | +13020.5% |
| 2026-04-27 | 18.0K | — | — |
| 2026-03-23 | 410.4K | — | -34.4% |