SGI Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-20
SGI dark pool volume for the week of 2026-07-20: 3.5M shares traded across 25 ATS venues with a total notional value of $247.9M. Volume is up 25.8% week-over-week. Off-exchange dark pool transactions account for 18.4% of total SGI market volume — elevated above the typical 10–14% institutional baseline, potentially signaling active accumulation or distribution. Primary routing venues include , INTELLIGENT CROSS LLC, UBS ATS.
Dark pool activity in SGI 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 SGI.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-20 | 3.5M | 18.4% | +25.8% |
| 2026-07-13 | 2.8M | — | -22.3% |
| 2026-07-06 | 3.6M | — | +25.7% |
| 2026-06-29 | 2.9M | — | -45.9% |
| 2026-06-22 | 5.3M | — | +27.0% |
| 2026-06-15 | 4.2M | — | +7.5% |
| 2026-06-08 | 3.9M | — | +0.7% |
| 2026-06-01 | 3.9M | — | -19.4% |
| 2026-05-25 | 4.8M | — | -21.5% |
| 2026-05-18 | 6.1M | — | +34.0% |
| 2026-05-11 | 4.6M | — | -38.7% |
| 2026-05-04 | 7.5M | 79.5% | +89.8% |