ALM Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-20
ALM dark pool volume for the week of 2026-07-20: 4.4M shares traded across 28 ATS venues with a total notional value of $62.5M. Volume is down 30.5% week-over-week. Off-exchange dark pool transactions account for 13.8% of total ALM market volume — within the normal institutional baseline range. Primary routing venues include , INTELLIGENT CROSS LLC, UBS ATS.
Dark pool activity in ALM 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 ALM.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-20 | 4.4M | 13.8% | -30.5% |
| 2026-07-13 | 6.3M | — | -31.7% |
| 2026-07-06 | 9.2M | — | +173.2% |
| 2026-06-29 | 3.4M | — | -27.1% |
| 2026-06-22 | 4.6M | — | +15.4% |
| 2026-06-15 | 4.0M | — | -45.6% |
| 2026-06-08 | 7.4M | — | +2.1% |
| 2026-06-01 | 7.2M | 38.8% | +60.2% |
| 2026-05-25 | 4.5M | — | +4.6% |
| 2026-05-18 | 4.3M | — | -20.0% |
| 2026-05-11 | 5.4M | — | +0.6% |
| 2026-05-04 | 5.4M | — | +23.6% |