SPDN Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-20
SPDN dark pool volume for the week of 2026-07-20: 2.9M shares traded across 20 ATS venues with a total notional value of $25.7M. Volume is down 38.8% week-over-week. Primary routing venues include , UBS ATS, SIGMA X2.
Dark pool activity in SPDN 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 SPDN.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-20 | 2.9M | — | -38.8% |
| 2026-07-13 | 4.8M | — | +156.2% |
| 2026-07-06 | 1.9M | — | +20.4% |
| 2026-06-29 | 1.6M | — | -41.2% |
| 2026-06-22 | 2.6M | — | -41.9% |
| 2026-06-15 | 4.5M | — | -45.8% |
| 2026-06-08 | 8.4M | — | +128.0% |
| 2026-06-01 | 3.7M | — | +40.5% |
| 2026-05-25 | 2.6M | — | -36.6% |
| 2026-05-18 | 4.1M | — | +70.7% |
| 2026-05-11 | 2.4M | — | +1.4% |
| 2026-05-04 | 2.4M | — | -54.1% |