WLK Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-20
WLK dark pool volume for the week of 2026-07-20: 1.4M shares traded across 23 ATS venues with a total notional value of $105.5M. Volume is up 45.6% week-over-week. Primary routing venues include , INTELLIGENT CROSS LLC, MS TRAJECTORY CROSS (ATS-1).
Dark pool activity in WLK 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 WLK.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-20 | 1.4M | — | +45.6% |
| 2026-07-13 | 957.9K | — | -57.1% |
| 2026-07-06 | 2.2M | — | +17.6% |
| 2026-06-29 | 1.9M | — | -10.9% |
| 2026-06-22 | 2.1M | — | +82.6% |
| 2026-06-15 | 1.2M | — | +5.2% |
| 2026-06-08 | 1.1M | — | +11.2% |
| 2026-06-01 | 999.2K | — | -8.0% |
| 2026-05-25 | 1.1M | — | -32.6% |
| 2026-05-18 | 1.6M | — | -12.1% |
| 2026-05-11 | 1.8M | — | -30.9% |
| 2026-05-04 | 2.7M | — | +78.7% |