OPLN Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
OPLN dark pool volume for the week of 2026-07-06: 884.2K shares traded across 25 ATS venues with a total notional value of $36.0M. Volume is down 24.2% week-over-week. Primary routing venues include , UBS ATS, INTELLIGENT CROSS LLC.
Dark pool activity in OPLN 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 OPLN.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 884.2K | — | -24.2% |
| 2026-06-29 | 1.2M | — | -31.9% |
| 2026-06-22 | 1.7M | — | +161.3% |
| 2026-06-15 | 655.2K | — | -51.4% |
| 2026-06-08 | 1.3M | — | -26.2% |
| 2026-06-01 | 1.8M | — | +66.1% |
| 2026-05-25 | 1.1M | — | +14.2% |
| 2026-05-18 | 963.7K | — | +4.3% |
| 2026-05-11 | 924.1K | — | -69.6% |
| 2026-05-04 | 3.0M | — | +554.2% |
| 2026-04-27 | 464.4K | — | — |
| 2026-03-23 | 1.5M | — | +35.9% |