PCSA Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
PCSA dark pool volume for the week of 2026-07-06: 16.2K shares traded across 16 ATS venues with a total notional value of $32K. Volume is down 18.7% week-over-week. Primary routing venues include , UBS ATS, IBKR ATS.
Dark pool activity in PCSA 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 PCSA.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 16.2K | — | -18.7% |
| 2026-06-29 | 19.9K | — | +328.6% |
| 2026-06-22 | 4.6K | — | -40.4% |
| 2026-06-15 | 7.8K | — | -79.1% |
| 2026-06-08 | 37.3K | — | +70.0% |
| 2026-06-01 | 21.9K | — | +279.1% |
| 2026-05-25 | 5.8K | — | -47.8% |
| 2026-05-18 | 11.1K | — | -53.5% |
| 2026-05-11 | 23.8K | — | +751.1% |
| 2026-05-04 | 2.8K | — | -67.6% |
| 2026-04-27 | 8.6K | — | — |
| 2026-03-23 | 6.2K | — | -54.8% |