ANSS Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2025-07-14
ANSS dark pool volume for the week of 2025-07-14: 2.2M shares traded across 23 ATS venues with a total notional value of $862.5M. Volume is up 227.8% week-over-week. Primary routing venues include , MS POOL (ATS-4), INSTINCT X.
Dark pool activity in ANSS 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 ANSS.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2025-07-14 | 2.2M | — | +227.8% |
| 2025-07-07 | 675.6K | — | +39.6% |
| 2025-06-30 | 483.8K | — | -12.6% |
| 2025-06-23 | 553.8K | — | -30.3% |
| 2025-06-16 | 794.9K | — | +11.5% |
| 2025-06-09 | 712.7K | — | -39.8% |
| 2025-06-02 | 1.2M | — | -44.0% |
| 2025-05-26 | 2.1M | — | +189.8% |
| 2025-05-19 | 729.6K | — | -32.1% |
| 2025-05-12 | 1.1M | — | +49.5% |
| 2025-05-05 | 718.9K | — | -33.7% |
| 2025-04-28 | 1.1M | — | +57.5% |