IGMS Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2025-08-11
IGMS dark pool volume for the week of 2025-08-11: 143.6K shares traded across 19 ATS venues with a total notional value of $185K. Volume is up 37.8% week-over-week. Primary routing venues include , INTELLIGENT CROSS LLC, IBKR ATS.
Dark pool activity in IGMS 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 IGMS.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2025-08-11 | 143.6K | — | +37.8% |
| 2025-08-04 | 104.2K | — | -90.2% |
| 2025-07-28 | 1.1M | — | +824.7% |
| 2025-07-21 | 114.7K | — | -76.0% |
| 2025-07-14 | 478.8K | — | +39.4% |
| 2025-07-07 | 343.5K | — | -86.6% |
| 2025-06-30 | 2.6M | — | +2795.1% |
| 2025-06-23 | 88.3K | — | +9.0% |
| 2025-06-16 | 81.0K | — | -37.2% |
| 2025-06-09 | 128.9K | — | -31.2% |
| 2025-06-02 | 187.3K | — | -21.6% |
| 2025-05-26 | 239.0K | — | +167.6% |