MARPS Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
MARPS dark pool volume for the week of 2026-07-06: 432 shares traded across 2 ATS venues with a total notional value of $2K. Volume is down 46.3% week-over-week. Primary routing venues include , UBS ATS, JPM-X.
Dark pool activity in MARPS 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 MARPS.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 432 | — | -46.3% |
| 2026-06-29 | 805 | — | +26.4% |
| 2026-06-22 | 637 | — | -13.1% |
| 2026-06-15 | 733 | — | -75.2% |
| 2026-06-08 | 3.0K | — | +182.0% |
| 2026-06-01 | 1.0K | — | -24.8% |
| 2026-05-25 | 1.4K | — | -61.6% |
| 2026-05-18 | 3.6K | — | +78.9% |
| 2026-05-11 | 2.0K | — | +239.9% |
| 2026-05-04 | 596 | — | -84.1% |
| 2026-04-27 | 3.7K | — | — |
| 2026-03-23 | 10.1K | — | -27.9% |