STFS Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
STFS dark pool volume for the week of 2026-07-06: 6.8K shares traded across 14 ATS venues with a total notional value of $108K. Volume is up 115.3% week-over-week. Primary routing venues include , SIGMA X2, CBX.
Dark pool activity in STFS 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 STFS.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 6.8K | — | +115.3% |
| 2026-06-29 | 3.1K | — | -79.0% |
| 2026-06-22 | 15.0K | — | +1048.6% |
| 2026-06-15 | 1.3K | — | -78.7% |
| 2026-06-08 | 6.1K | — | -49.3% |
| 2026-06-01 | 12.1K | — | -51.2% |
| 2026-05-25 | 24.7K | — | -70.5% |
| 2026-05-18 | 83.9K | — | +188.2% |
| 2026-05-11 | 29.1K | — | -90.7% |
| 2026-05-04 | 313.3K | — | +143607.8% |
| 2026-04-27 | 218 | — | — |
| 2026-03-23 | 2.2K | — | -69.2% |