MSEX Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
MSEX dark pool volume for the week of 2026-07-06: 376.8K shares traded across 23 ATS venues with a total notional value of $20.7M. Volume is up 107.5% week-over-week. Primary routing venues include , UBS ATS, SIGMA X2.
Dark pool activity in MSEX 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 MSEX.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 376.8K | — | +107.5% |
| 2026-06-29 | 181.6K | — | +6.5% |
| 2026-06-22 | 170.6K | — | +35.5% |
| 2026-06-15 | 125.8K | — | -27.1% |
| 2026-06-08 | 172.5K | — | +34.9% |
| 2026-06-01 | 127.9K | — | +59.2% |
| 2026-05-25 | 80.3K | — | -34.7% |
| 2026-05-18 | 123.1K | — | -1.5% |
| 2026-05-11 | 125.0K | — | -3.8% |
| 2026-05-04 | 129.9K | — | -22.2% |
| 2026-04-27 | 166.9K | — | — |
| 2026-03-23 | 137.4K | — | -29.1% |