PM Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-20
PM dark pool volume for the week of 2026-07-20: 8.2M shares traded across 31 ATS venues with a total notional value of $1.57B. Volume is up 57.4% week-over-week. Off-exchange dark pool transactions account for 33.4% of total PM market volume — elevated above the typical 10–14% institutional baseline, potentially signaling active accumulation or distribution. Primary routing venues include , INTELLIGENT CROSS LLC, UBS ATS.
Dark pool activity in PM 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 PM.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-20 | 8.2M | 33.4% | +57.4% |
| 2026-07-13 | 5.2M | — | +9.5% |
| 2026-07-06 | 4.7M | — | -7.9% |
| 2026-06-29 | 5.1M | — | +4.7% |
| 2026-06-22 | 4.9M | — | -2.7% |
| 2026-06-15 | 5.0M | — | -6.8% |
| 2026-06-08 | 5.4M | — | +28.4% |
| 2026-06-01 | 4.2M | — | +5.0% |
| 2026-05-25 | 4.0M | — | -19.4% |
| 2026-05-18 | 5.0M | — | -31.2% |
| 2026-05-11 | 7.2M | 28.4% | +35.8% |
| 2026-05-04 | 5.3M | — | -11.3% |