BTM Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-05-18
BTM dark pool volume for the week of 2026-05-18: 621.7K shares traded across 23 ATS venues with a total notional value of $507K. Volume is up 110.7% week-over-week. Primary routing venues include , BOATS, INTELLIGENT CROSS LLC.
Dark pool activity in BTM 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 BTM.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-05-18 | 621.7K | — | +110.7% |
| 2026-05-11 | 295.1K | — | +180.1% |
| 2026-05-04 | 105.4K | — | -23.2% |
| 2026-04-27 | 137.2K | — | — |
| 2026-03-23 | 177.6K | — | +97.3% |
| 2026-03-16 | 90.0K | — | +39.5% |
| 2026-03-09 | 64.5K | — | — |
| 2026-02-02 | 1.0M | — | +147.2% |
| 2026-01-26 | 405.3K | — | -28.7% |
| 2026-01-19 | 568.6K | — | +83.6% |
| 2026-01-12 | 309.7K | — | -43.7% |
| 2026-01-05 | 550.0K | — | +89.5% |