MRUS Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2025-12-29
MRUS dark pool volume for the week of 2025-12-29: 379.1K shares traded across 22 ATS venues with a total notional value of $35.2M. Volume is up 135.7% week-over-week. Primary routing venues include , UBS ATS, SIGMA X2.
Dark pool activity in MRUS 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 MRUS.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2025-12-29 | 379.1K | — | +135.7% |
| 2025-12-22 | 160.8K | — | -74.2% |
| 2025-12-15 | 624.5K | — | -56.4% |
| 2025-12-08 | 1.4M | — | -11.9% |
| 2025-12-01 | 1.6M | — | +182.5% |
| 2025-11-24 | 575.0K | — | -69.0% |
| 2025-11-17 | 1.9M | — | -3.3% |
| 2025-11-10 | 1.9M | — | +241.0% |
| 2025-11-03 | 562.3K | — | — |
| 2025-10-20 | 2.8M | — | +48.0% |
| 2025-10-13 | 1.9M | — | -46.9% |
| 2025-10-06 | 3.5M | — | -78.9% |