ATON Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-03-23
ATON dark pool volume for the week of 2026-03-23: 131.2K shares traded across 0 ATS venues with a total notional value of $45K. Volume is down 26.1% week-over-week. Primary routing venues include multiple ATS venues.
Dark pool activity in ATON 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 ATON.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-03-23 | 131.2K | — | -26.1% |
| 2026-03-16 | 177.5K | — | +122.9% |
| 2026-03-09 | 79.6K | — | — |
| 2026-02-02 | 993.8K | — | -33.6% |
| 2026-01-26 | 1.5M | — | -54.5% |
| 2026-01-19 | 3.3M | — | -75.2% |
| 2026-01-12 | 13.3M | 5.3% | +25278.5% |
| 2026-01-05 | 52.3K | — | +78.8% |
| 2025-12-29 | 29.3K | — | +58.4% |
| 2025-12-22 | 18.5K | — | -96.7% |
| 2025-12-15 | 559.8K | — | +328.0% |
| 2025-12-08 | 130.8K | — | +35.2% |