PRTA Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
PRTA dark pool volume for the week of 2026-07-06: 479.4K shares traded across 23 ATS venues with a total notional value of $4.6M. Volume is up 63.8% week-over-week. Primary routing venues include , INTELLIGENT CROSS LLC, MS TRAJECTORY CROSS (ATS-1).
Dark pool activity in PRTA 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 PRTA.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 479.4K | — | +63.8% |
| 2026-06-29 | 292.7K | — | -50.8% |
| 2026-06-22 | 594.3K | — | +22.0% |
| 2026-06-15 | 487.3K | — | +40.2% |
| 2026-06-08 | 347.5K | — | -18.9% |
| 2026-06-01 | 428.4K | — | +39.1% |
| 2026-05-25 | 308.0K | — | -41.8% |
| 2026-05-18 | 528.8K | — | +11.1% |
| 2026-05-11 | 476.2K | — | +14.9% |
| 2026-05-04 | 414.4K | — | +24.7% |
| 2026-04-27 | 332.2K | — | — |
| 2026-03-23 | 452.8K | — | -12.4% |