ECL Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-20
ECL dark pool volume for the week of 2026-07-20: 1.5M shares traded across 26 ATS venues with a total notional value of $401.1M. Volume is up 3.4% week-over-week. Primary routing venues include , INTELLIGENT CROSS LLC, UBS ATS.
Dark pool activity in ECL 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 ECL.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-20 | 1.5M | — | +3.4% |
| 2026-07-13 | 1.5M | — | +9.8% |
| 2026-07-06 | 1.3M | — | +0.1% |
| 2026-06-29 | 1.3M | — | -41.1% |
| 2026-06-22 | 2.3M | — | +15.3% |
| 2026-06-15 | 2.0M | — | -35.7% |
| 2026-06-08 | 3.0M | — | +55.9% |
| 2026-06-01 | 1.9M | — | +9.0% |
| 2026-05-25 | 1.8M | — | -32.0% |
| 2026-05-18 | 2.6M | — | +5.9% |
| 2026-05-11 | 2.5M | — | -0.4% |
| 2026-05-04 | 2.5M | — | +17.4% |