HIO Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
HIO dark pool volume for the week of 2026-07-06: 104.3K shares traded across 19 ATS venues with a total notional value of $380K. Volume is down 57.9% week-over-week. Primary routing venues include , INSTINCT X, INTELLIGENT CROSS LLC.
Dark pool activity in HIO 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 HIO.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 104.3K | — | -57.9% |
| 2026-06-29 | 247.9K | — | +70.1% |
| 2026-06-22 | 145.7K | — | -33.2% |
| 2026-06-15 | 218.3K | — | +46.0% |
| 2026-06-08 | 149.5K | — | -39.3% |
| 2026-06-01 | 246.3K | — | +29.9% |
| 2026-05-25 | 189.6K | — | -38.1% |
| 2026-05-18 | 306.1K | — | +21.9% |
| 2026-05-11 | 251.0K | — | +177.4% |
| 2026-05-04 | 90.5K | — | -52.6% |
| 2026-04-27 | 190.8K | — | — |
| 2026-03-23 | 310.5K | — | +47.7% |