PSP Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-20
PSP dark pool volume for the week of 2026-07-20: 20.8K shares traded across 10 ATS venues with a total notional value of $1.2M. Volume is up 494.4% week-over-week. Primary routing venues include , INTELLIGENT CROSS LLC, UBS ATS.
Dark pool activity in PSP 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 PSP.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-20 | 20.8K | — | +494.4% |
| 2026-07-13 | 3.5K | — | -75.2% |
| 2026-07-06 | 14.1K | — | -32.0% |
| 2026-06-29 | 20.7K | — | -85.3% |
| 2026-06-22 | 140.8K | — | +1459.3% |
| 2026-06-15 | 9.0K | — | -25.3% |
| 2026-06-08 | 12.1K | — | -70.0% |
| 2026-06-01 | 40.3K | — | +435.2% |
| 2026-05-25 | 7.5K | — | -87.4% |
| 2026-05-18 | 59.7K | — | +66.0% |
| 2026-05-11 | 35.9K | — | +87.7% |
| 2026-05-04 | 19.1K | — | +11.3% |