SXI Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
SXI dark pool volume for the week of 2026-07-06: 337.5K shares traded across 23 ATS venues with a total notional value of $106.4M. Volume is down 20.1% week-over-week. Primary routing venues include , UBS ATS, INTELLIGENT CROSS LLC.
Dark pool activity in SXI 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 SXI.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 337.5K | — | -20.1% |
| 2026-06-29 | 422.2K | — | +11.1% |
| 2026-06-22 | 379.9K | — | +86.0% |
| 2026-06-15 | 204.2K | — | -6.5% |
| 2026-06-08 | 218.5K | — | -34.3% |
| 2026-06-01 | 332.5K | — | +21.8% |
| 2026-05-25 | 273.0K | — | +85.0% |
| 2026-05-18 | 147.5K | — | -41.5% |
| 2026-05-11 | 252.4K | — | +5.8% |
| 2026-05-04 | 238.4K | — | -51.3% |
| 2026-04-27 | 490.0K | — | — |
| 2026-03-23 | 141.1K | — | -37.5% |