ZBIO Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
ZBIO dark pool volume for the week of 2026-07-06: 1.0M shares traded across 25 ATS venues with a total notional value of $28.8M. Volume is down 44.1% week-over-week. Primary routing venues include , LIQUIDNET NEGOTIATION ATS, SIGMA X2.
Dark pool activity in ZBIO 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 ZBIO.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 1.0M | — | -44.1% |
| 2026-06-29 | 1.8M | — | +31.9% |
| 2026-06-22 | 1.4M | — | +56.9% |
| 2026-06-15 | 892.0K | — | -20.5% |
| 2026-06-08 | 1.1M | — | +26.3% |
| 2026-06-01 | 888.8K | — | +64.5% |
| 2026-05-25 | 540.3K | — | -34.0% |
| 2026-05-18 | 818.8K | — | +7.3% |
| 2026-05-11 | 763.4K | — | +38.8% |
| 2026-05-04 | 550.0K | — | -32.5% |
| 2026-04-27 | 815.4K | — | — |
| 2026-03-23 | 2.2M | — | +252.2% |