OCEA Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2025-04-21
OCEA dark pool volume for the week of 2025-04-21: 10.1M shares traded across 21 ATS venues with a total notional value of $265K. Volume is up 11337.5% week-over-week. Off-exchange dark pool transactions account for 1.6% of total OCEA market volume — within the normal institutional baseline range. Primary routing venues include , INTELLIGENT CROSS LLC, UBS ATS.
Dark pool activity in OCEA 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 7-week historical volume and complete venue breakdown for OCEA.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2025-04-21 | 10.1M | 1.6% | +11337.5% |
| 2025-04-14 | 88.4K | — | -82.5% |
| 2025-04-07 | 505.0K | — | +86.5% |
| 2025-03-31 | 270.8K | — | -94.3% |
| 2025-03-24 | 4.8M | 0.4% | +710.0% |
| 2025-03-17 | 587.1K | — | +45.8% |
| 2025-03-10 | 402.8K | — | — |