SIG Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
SIG dark pool volume for the week of 2026-07-06: 913.5K shares traded across 24 ATS venues with a total notional value of $75.6M. Volume is down 32.0% week-over-week. Primary routing venues include , LEVEL ATS, SIGMA X2.
Dark pool activity in SIG 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 SIG.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 913.5K | — | -32.0% |
| 2026-06-29 | 1.3M | — | -1.8% |
| 2026-06-22 | 1.4M | — | +13.8% |
| 2026-06-15 | 1.2M | — | -11.7% |
| 2026-06-08 | 1.4M | — | -43.6% |
| 2026-06-01 | 2.4M | — | +99.3% |
| 2026-05-25 | 1.2M | — | -1.6% |
| 2026-05-18 | 1.2M | — | -6.8% |
| 2026-05-11 | 1.3M | — | +22.7% |
| 2026-05-04 | 1.1M | — | -15.9% |
| 2026-04-27 | 1.3M | — | — |
| 2026-03-23 | 1.2M | — | -59.4% |