PCI Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-05-25
PCI dark pool volume for the week of 2026-05-25: 219 shares traded across 1 ATS venues with a total notional value of $11K. Volume is down 0.0% week-over-week. Primary routing venues include UBS ATS, .
Dark pool activity in PCI 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 5-week historical volume and complete venue breakdown for PCI.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-05-25 | 219 | — | — |
| 2026-03-16 | 1 | — | — |
| 2026-01-12 | 900 | — | — |
| 2025-10-06 | 100 | — | +3233.3% |
| 2025-09-29 | 3 | — | — |