HAYW Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-20
HAYW dark pool volume for the week of 2026-07-20: 3.4M shares traded across 27 ATS venues with a total notional value of $48.7M. Volume is down 29.2% week-over-week. Off-exchange dark pool transactions account for 25.7% of total HAYW 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 HAYW 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 HAYW.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-20 | 3.4M | 25.7% | -29.2% |
| 2026-07-13 | 4.8M | — | +36.6% |
| 2026-07-06 | 3.5M | — | -24.5% |
| 2026-06-29 | 4.7M | — | +54.6% |
| 2026-06-22 | 3.0M | — | +25.4% |
| 2026-06-15 | 2.4M | — | +2.5% |
| 2026-06-08 | 2.4M | — | +11.7% |
| 2026-06-01 | 2.1M | — | -5.5% |
| 2026-05-25 | 2.2M | — | -19.3% |
| 2026-05-18 | 2.8M | — | -28.9% |
| 2026-05-11 | 3.9M | — | +28.5% |
| 2026-05-04 | 3.0M | — | -45.1% |