NSA Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-20
NSA dark pool volume for the week of 2026-07-20: 2.2M shares traded across 24 ATS venues with a total notional value of $97.0M. Volume is down 8.2% week-over-week. Primary routing venues include , INSTINCT X, INTELLIGENT CROSS LLC.
Dark pool activity in NSA 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 NSA.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-20 | 2.2M | — | -8.2% |
| 2026-07-13 | 2.4M | — | +287.7% |
| 2026-07-06 | 625.6K | — | +14.3% |
| 2026-06-29 | 547.5K | — | -23.5% |
| 2026-06-22 | 715.4K | — | +59.8% |
| 2026-06-15 | 447.5K | — | -45.4% |
| 2026-06-08 | 819.1K | — | -19.8% |
| 2026-06-01 | 1.0M | — | +127.4% |
| 2026-05-25 | 448.8K | — | -28.3% |
| 2026-05-18 | 625.8K | — | -43.6% |
| 2026-05-11 | 1.1M | — | +20.6% |
| 2026-05-04 | 920.3K | — | -34.8% |