HYLS Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-20
HYLS dark pool volume for the week of 2026-07-20: 213.2K shares traded across 19 ATS venues with a total notional value of $8.6M. Volume is up 124.9% week-over-week. Primary routing venues include , UBS ATS, INTELLIGENT CROSS LLC.
Dark pool activity in HYLS 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 HYLS.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-20 | 213.2K | — | +124.9% |
| 2026-07-13 | 94.8K | — | -67.0% |
| 2026-07-06 | 287.0K | — | +619.6% |
| 2026-06-29 | 39.9K | — | -48.5% |
| 2026-06-22 | 77.5K | — | +157.8% |
| 2026-06-15 | 30.1K | — | -14.7% |
| 2026-06-08 | 35.3K | — | -10.4% |
| 2026-06-01 | 39.4K | — | -36.3% |
| 2026-05-25 | 61.8K | — | -12.6% |
| 2026-05-18 | 70.7K | — | +119.4% |
| 2026-05-11 | 32.2K | — | -44.5% |
| 2026-05-04 | 58.0K | — | -41.5% |