UBFO Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-03-23
UBFO dark pool volume for the week of 2026-03-23: 30.1K shares traded across 0 ATS venues with a total notional value of $311K. Volume is up 10.8% week-over-week. Primary routing venues include multiple ATS venues.
Dark pool activity in UBFO 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 UBFO.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-03-23 | 30.1K | — | +10.8% |
| 2026-03-16 | 27.2K | — | +43.9% |
| 2026-03-09 | 18.9K | — | — |
| 2026-02-02 | 20.3K | — | +18.6% |
| 2026-01-26 | 17.1K | — | -33.3% |
| 2026-01-19 | 25.7K | — | +9.6% |
| 2026-01-12 | 23.4K | — | -25.1% |
| 2026-01-05 | 31.3K | — | -8.6% |
| 2025-12-29 | 34.3K | — | +196.3% |
| 2025-12-22 | 11.6K | — | -88.9% |
| 2025-12-15 | 104.6K | — | +122.0% |
| 2025-12-08 | 47.1K | — | +89.3% |