ZK Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2025-12-15
ZK dark pool volume for the week of 2025-12-15: 394.7K shares traded across 26 ATS venues with a total notional value of $10.5M. Volume is up 211.7% week-over-week. Primary routing venues include , INTELLIGENT CROSS LLC, MS TRAJECTORY CROSS (ATS-1).
Dark pool activity in ZK 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 ZK.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2025-12-15 | 394.7K | — | +211.7% |
| 2025-12-08 | 126.6K | — | -67.7% |
| 2025-12-01 | 392.0K | — | -59.7% |
| 2025-11-24 | 973.8K | — | +43.5% |
| 2025-11-17 | 678.8K | — | +227.8% |
| 2025-11-10 | 207.1K | — | -41.6% |
| 2025-11-03 | 354.5K | — | — |
| 2025-10-20 | 920.8K | — | +36.0% |
| 2025-10-13 | 677.1K | — | -24.1% |
| 2025-10-06 | 892.6K | — | +18.0% |
| 2025-09-29 | 756.6K | — | +100.5% |
| 2025-09-22 | 377.4K | — | -55.1% |