OCTO Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2025-09-08
OCTO dark pool volume for the week of 2025-09-08: 10.6M shares traded across 25 ATS venues with a total notional value of $470.4M. Volume is up 179866.8% week-over-week. Primary routing venues include , UBS ATS, IBKR ATS.
Dark pool activity in OCTO 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 OCTO.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2025-09-08 | 10.6M | — | +179866.8% |
| 2025-09-01 | 5.9K | — | +22.8% |
| 2025-08-25 | 4.8K | — | -38.8% |
| 2025-08-18 | 7.8K | — | -8.7% |
| 2025-08-11 | 8.6K | — | -44.1% |
| 2025-08-04 | 15.3K | — | -78.6% |
| 2025-07-28 | 71.8K | — | -95.5% |
| 2025-07-21 | 1.6M | — | +18535.6% |
| 2025-07-14 | 8.5K | — | +762.7% |
| 2025-07-07 | 990 | — | +98.4% |
| 2025-06-30 | 499 | — | -63.0% |
| 2025-06-23 | 1.3K | — | -15.5% |