BIS Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
BIS dark pool volume for the week of 2026-07-06: 4.6K shares traded across 7 ATS venues with a total notional value of $59K. Volume is up 1345.8% week-over-week. Primary routing venues include , VIRTU MATCHIT ATS, UBS ATS.
Dark pool activity in BIS 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 BIS.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 4.6K | — | +1345.8% |
| 2026-06-29 | 319 | — | -77.3% |
| 2026-06-22 | 1.4K | — | -58.4% |
| 2026-06-15 | 3.4K | — | -24.4% |
| 2026-06-08 | 4.5K | — | +83.2% |
| 2026-06-01 | 2.4K | — | +1286.4% |
| 2026-05-25 | 176 | — | -96.3% |
| 2026-05-18 | 4.8K | — | +10.3% |
| 2026-05-11 | 4.4K | — | -31.1% |
| 2026-05-04 | 6.4K | — | -28.6% |
| 2026-04-27 | 8.9K | — | — |
| 2026-03-23 | 4.2K | — | +56.9% |