NSPR Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
NSPR dark pool volume for the week of 2026-07-06: 13.1K shares traded across 9 ATS venues with a total notional value of $9K. Volume is down 74.6% week-over-week. Primary routing venues include , VIRTU MATCHIT ATS, IBKR ATS.
Dark pool activity in NSPR 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 NSPR.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 13.1K | — | -74.6% |
| 2026-06-29 | 51.4K | — | +73.0% |
| 2026-06-22 | 29.7K | — | -26.4% |
| 2026-06-15 | 40.4K | — | -12.1% |
| 2026-06-08 | 46.0K | — | -38.8% |
| 2026-06-01 | 75.1K | — | +33.7% |
| 2026-05-25 | 56.2K | — | -69.8% |
| 2026-05-18 | 186.3K | — | -42.9% |
| 2026-05-11 | 326.2K | — | -38.5% |
| 2026-05-04 | 530.0K | — | +1057.5% |
| 2026-04-27 | 45.8K | — | — |
| 2026-03-23 | 12.4K | — | -72.0% |