CISS Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
CISS dark pool volume for the week of 2026-07-06: 6.0K shares traded across 17 ATS venues with a total notional value of $10K. Volume is down 53.3% week-over-week. Primary routing venues include , UBS ATS, INTELLIGENT CROSS LLC.
Dark pool activity in CISS 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 CISS.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 6.0K | — | -53.3% |
| 2026-06-29 | 12.8K | — | -33.9% |
| 2026-06-22 | 19.4K | — | -63.3% |
| 2026-06-15 | 52.8K | — | -13.0% |
| 2026-06-08 | 60.7K | — | -57.6% |
| 2026-06-01 | 143.4K | — | +304.3% |
| 2026-05-25 | 35.5K | — | -96.8% |
| 2026-05-18 | 1.1M | — | +35451.5% |
| 2026-05-11 | 3.1K | — | -75.3% |
| 2026-05-04 | 12.6K | — | -66.2% |
| 2026-04-27 | 37.4K | — | — |
| 2026-03-23 | 123.1K | — | -29.6% |