PHLT Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2025-10-20
PHLT dark pool volume for the week of 2025-10-20: 909.6K shares traded across 21 ATS venues with a total notional value of $7.0M. Volume is down 50.0% week-over-week. Primary routing venues include , INSTINCT X, UBS ATS.
Dark pool activity in PHLT 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 PHLT.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2025-10-20 | 909.6K | — | -50.0% |
| 2025-10-13 | 1.8M | — | +111.5% |
| 2025-10-06 | 860.2K | — | +67.7% |
| 2025-09-29 | 512.8K | — | -23.7% |
| 2025-09-22 | 671.8K | — | +8.7% |
| 2025-09-15 | 618.2K | — | -50.5% |
| 2025-09-08 | 1.2M | — | +17.8% |
| 2025-09-01 | 1.1M | — | +23.5% |
| 2025-08-25 | 857.7K | — | -68.3% |
| 2025-08-18 | 2.7M | — | -38.1% |
| 2025-08-11 | 4.4M | — | +19.1% |
| 2025-08-04 | 3.7M | — | -36.4% |