SPIB Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-20
SPIB dark pool volume for the week of 2026-07-20: 3.5M shares traded across 22 ATS venues with a total notional value of $116.7M. Volume is up 60.5% week-over-week. Off-exchange dark pool transactions account for 12.0% of total SPIB market volume — within the normal institutional baseline range. Primary routing venues include , INTELLIGENT CROSS LLC, INSTINCT X.
Dark pool activity in SPIB 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 SPIB.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-20 | 3.5M | 12.0% | +60.5% |
| 2026-07-13 | 2.2M | — | -53.6% |
| 2026-07-06 | 4.7M | — | +39.9% |
| 2026-06-29 | 3.4M | — | -44.2% |
| 2026-06-22 | 6.1M | — | +48.1% |
| 2026-06-15 | 4.1M | — | -51.7% |
| 2026-06-08 | 8.5M | — | +180.3% |
| 2026-06-01 | 3.0M | — | -11.3% |
| 2026-05-25 | 3.4M | — | +29.7% |
| 2026-05-18 | 2.6M | — | -56.3% |
| 2026-05-11 | 6.0M | — | +10.6% |
| 2026-05-04 | 5.4M | — | -18.7% |