CHX Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2025-07-14
CHX dark pool volume for the week of 2025-07-14: 1.1M shares traded across 23 ATS venues with a total notional value of $29.5M. Volume is down 19.8% week-over-week. Primary routing venues include , UBS ATS, MS POOL (ATS-4).
Dark pool activity in CHX 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 CHX.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2025-07-14 | 1.1M | — | -19.8% |
| 2025-07-07 | 1.4M | — | +58.7% |
| 2025-06-30 | 892.6K | — | -44.6% |
| 2025-06-23 | 1.6M | — | +69.0% |
| 2025-06-16 | 952.8K | — | -9.3% |
| 2025-06-09 | 1.1M | — | -39.7% |
| 2025-06-02 | 1.7M | — | +64.3% |
| 2025-05-26 | 1.1M | — | -14.3% |
| 2025-05-19 | 1.2M | — | +34.0% |
| 2025-05-12 | 922.9K | — | -40.4% |
| 2025-05-05 | 1.5M | — | -23.0% |
| 2025-04-28 | 2.0M | — | +17.7% |