PLSM Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
PLSM dark pool volume for the week of 2026-07-06: 25.4K shares traded across 19 ATS venues with a total notional value of $111K. Volume is down 5.3% week-over-week. Primary routing venues include , IBKR ATS, UBS ATS.
Dark pool activity in PLSM 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 PLSM.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 25.4K | — | -5.3% |
| 2026-06-29 | 26.9K | — | -98.8% |
| 2026-06-22 | 2.2M | — | +1065691.5% |
| 2026-06-15 | 211 | — | — |
| 2026-06-01 | 583 | — | +18.3% |
| 2026-05-25 | 493 | — | -91.4% |
| 2026-05-18 | 5.7K | — | -43.3% |
| 2026-05-11 | 10.1K | — | +847.7% |
| 2026-05-04 | 1.1K | — | -13.7% |
| 2026-04-27 | 1.2K | — | — |
| 2026-03-23 | 4.5K | — | +208.4% |
| 2026-03-16 | 1.5K | — | -47.1% |