GPK Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-20
GPK dark pool volume for the week of 2026-07-20: 6.0M shares traded across 26 ATS venues with a total notional value of $65.7M. Volume is up 8.2% week-over-week. Off-exchange dark pool transactions account for 22.7% of total GPK market volume — elevated above the typical 10–14% institutional baseline, potentially signaling active accumulation or distribution. Primary routing venues include , INTELLIGENT CROSS LLC, MS TRAJECTORY CROSS (ATS-1).
Dark pool activity in GPK 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 GPK.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-20 | 6.0M | 22.7% | +8.2% |
| 2026-07-13 | 5.6M | — | +20.7% |
| 2026-07-06 | 4.6M | — | +24.2% |
| 2026-06-29 | 3.7M | — | -46.1% |
| 2026-06-22 | 6.9M | — | +16.5% |
| 2026-06-15 | 5.9M | — | -25.5% |
| 2026-06-08 | 7.9M | — | -13.7% |
| 2026-06-01 | 9.2M | 58.3% | -5.0% |
| 2026-05-25 | 9.7M | 61.4% | +72.3% |
| 2026-05-18 | 5.6M | — | -43.0% |
| 2026-05-11 | 9.8M | 62.8% | -27.4% |
| 2026-05-04 | 13.6M | 86.5% | +57.8% |