IMPP Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
IMPP dark pool volume for the week of 2026-07-06: 134.8K shares traded across 20 ATS venues with a total notional value of $661K. Volume is down 25.3% week-over-week. Primary routing venues include , MS TRAJECTORY CROSS (ATS-1), IBKR ATS.
Dark pool activity in IMPP 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 IMPP.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 134.8K | — | -25.3% |
| 2026-06-29 | 180.4K | — | -7.2% |
| 2026-06-22 | 194.4K | — | -26.5% |
| 2026-06-15 | 264.4K | — | +1.2% |
| 2026-06-08 | 261.3K | — | -33.6% |
| 2026-06-01 | 393.8K | — | -37.3% |
| 2026-05-25 | 628.1K | — | +34.2% |
| 2026-05-18 | 468.0K | — | +45.9% |
| 2026-05-11 | 320.7K | — | -5.5% |
| 2026-05-04 | 339.5K | — | -45.8% |
| 2026-04-27 | 625.9K | — | — |
| 2026-03-23 | 388.2K | — | -15.2% |