ARCO Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
ARCO dark pool volume for the week of 2026-07-06: 5.4M shares traded across 25 ATS venues with a total notional value of $44.3M. Volume is up 270.4% week-over-week. Primary routing venues include , LIQUIDNET NEGOTIATION ATS, BIDS ATS.
Dark pool activity in ARCO 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 ARCO.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 5.4M | — | +270.4% |
| 2026-06-29 | 1.4M | — | +3.5% |
| 2026-06-22 | 1.4M | — | +136.4% |
| 2026-06-15 | 592.4K | — | -68.4% |
| 2026-06-08 | 1.9M | — | +85.1% |
| 2026-06-01 | 1.0M | — | -41.8% |
| 2026-05-25 | 1.7M | — | -26.1% |
| 2026-05-18 | 2.4M | — | +229.6% |
| 2026-05-11 | 715.9K | — | -27.5% |
| 2026-05-04 | 988.0K | — | -9.4% |
| 2026-04-27 | 1.1M | — | — |
| 2026-03-23 | 1.3M | — | +16.2% |