IRS Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
IRS dark pool volume for the week of 2026-07-06: 168.8K shares traded across 21 ATS venues with a total notional value of $2.6M. Volume is up 98.4% week-over-week. Primary routing venues include , IBKR ATS, SIGMA X2.
Dark pool activity in IRS 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 IRS.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 168.8K | — | +98.4% |
| 2026-06-29 | 85.1K | — | -22.3% |
| 2026-06-22 | 109.5K | — | -23.9% |
| 2026-06-15 | 144.0K | — | -62.1% |
| 2026-06-08 | 379.8K | — | +73.8% |
| 2026-06-01 | 218.5K | — | +34.1% |
| 2026-05-25 | 162.9K | — | -6.7% |
| 2026-05-18 | 174.6K | — | +15.4% |
| 2026-05-11 | 151.3K | — | -27.5% |
| 2026-05-04 | 208.7K | — | +43.2% |
| 2026-04-27 | 145.7K | — | — |
| 2026-03-23 | 483.8K | — | +178.7% |