FLS Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-20
FLS dark pool volume for the week of 2026-07-20: 3.1M shares traded across 24 ATS venues with a total notional value of $213.6M. Volume is up 34.4% week-over-week. Primary routing venues include , ONECHRONOS, LEVEL ATS.
Dark pool activity in FLS 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 FLS.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-20 | 3.1M | — | +34.4% |
| 2026-07-13 | 2.3M | — | -8.1% |
| 2026-07-06 | 2.5M | — | +42.6% |
| 2026-06-29 | 1.8M | — | -58.0% |
| 2026-06-22 | 4.2M | — | +63.7% |
| 2026-06-15 | 2.6M | — | +7.2% |
| 2026-06-08 | 2.4M | — | +20.1% |
| 2026-06-01 | 2.0M | — | -32.1% |
| 2026-05-25 | 2.9M | — | -23.3% |
| 2026-05-18 | 3.8M | — | +5.7% |
| 2026-05-11 | 3.6M | — | -23.1% |
| 2026-05-04 | 4.7M | — | -44.5% |