WMS Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-20
WMS dark pool volume for the week of 2026-07-20: 928.1K shares traded across 23 ATS venues with a total notional value of $130.8M. Volume is up 13.3% week-over-week. Primary routing venues include , SIGMA X2, UBS ATS.
Dark pool activity in WMS 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 WMS.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-20 | 928.1K | — | +13.3% |
| 2026-07-13 | 819.1K | — | -28.3% |
| 2026-07-06 | 1.1M | — | +36.6% |
| 2026-06-29 | 835.4K | — | -52.2% |
| 2026-06-22 | 1.7M | — | +18.1% |
| 2026-06-15 | 1.5M | — | +6.0% |
| 2026-06-08 | 1.4M | — | -26.8% |
| 2026-06-01 | 1.9M | — | +100.8% |
| 2026-05-25 | 949.0K | — | -56.9% |
| 2026-05-18 | 2.2M | — | +102.9% |
| 2026-05-11 | 1.1M | — | +1.0% |
| 2026-05-04 | 1.1M | — | +42.1% |