IONZ Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
IONZ dark pool volume for the week of 2026-07-06: 1.8M shares traded across 21 ATS venues with a total notional value of $6.3M. Volume is down 25.1% week-over-week. Primary routing venues include , BOATS, UBS ATS.
Dark pool activity in IONZ 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 IONZ.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 1.8M | — | -25.1% |
| 2026-06-29 | 2.5M | — | -54.5% |
| 2026-06-22 | 5.4M | — | +24.0% |
| 2026-06-15 | 4.3M | — | -56.1% |
| 2026-06-08 | 9.9M | 41.6% | +23.9% |
| 2026-06-01 | 8.0M | 10.5% | +31.9% |
| 2026-05-25 | 6.1M | 7.9% | -5.7% |
| 2026-05-18 | 6.4M | 8.4% | -24.6% |
| 2026-05-11 | 8.5M | 11.2% | +53.7% |
| 2026-05-04 | 5.5M | — | +101.4% |
| 2026-04-27 | 2.7M | — | — |
| 2026-03-23 | 600.2K | — | +36.7% |