ONC Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
ONC dark pool volume for the week of 2026-07-06: 517.4K shares traded across 26 ATS venues with a total notional value of $157.9M. Volume is up 11.7% week-over-week. Primary routing venues include , INTELLIGENT CROSS LLC, INSTINCT X.
Dark pool activity in ONC 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 ONC.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 517.4K | — | +11.7% |
| 2026-06-29 | 463.3K | — | -0.9% |
| 2026-06-22 | 467.7K | — | -5.9% |
| 2026-06-15 | 497.1K | — | -23.9% |
| 2026-06-08 | 653.0K | — | +37.3% |
| 2026-06-01 | 475.6K | — | +53.8% |
| 2026-05-25 | 309.3K | — | -23.9% |
| 2026-05-18 | 406.2K | — | -16.2% |
| 2026-05-11 | 484.6K | — | -26.9% |
| 2026-05-04 | 662.6K | — | +104.3% |
| 2026-04-27 | 324.3K | — | — |
| 2026-03-23 | 320.3K | — | -16.2% |