SSD Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-20
SSD dark pool volume for the week of 2026-07-20: 388.1K shares traded across 24 ATS venues with a total notional value of $73.1M. Volume is down 16.4% week-over-week. Primary routing venues include , UBS ATS, INTELLIGENT CROSS LLC.
Dark pool activity in SSD 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 SSD.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-20 | 388.1K | — | -16.4% |
| 2026-07-13 | 464.2K | — | +17.5% |
| 2026-07-06 | 395.1K | — | -38.0% |
| 2026-06-29 | 637.6K | — | -25.4% |
| 2026-06-22 | 854.6K | — | +147.9% |
| 2026-06-15 | 344.8K | — | -18.7% |
| 2026-06-08 | 423.9K | — | +13.6% |
| 2026-06-01 | 373.2K | — | +37.0% |
| 2026-05-25 | 272.4K | — | -35.5% |
| 2026-05-18 | 422.4K | — | +8.1% |
| 2026-05-11 | 390.9K | — | -27.6% |
| 2026-05-04 | 539.6K | — | -17.1% |