OCSL Dark Pool Activity
ATS off-exchange volume intelligence · Week of 2026-07-06
OCSL dark pool volume for the week of 2026-07-06: 302.3K shares traded across 24 ATS venues with a total notional value of $3.6M. Volume is down 15.4% week-over-week. Primary routing venues include , MS TRAJECTORY CROSS (ATS-1), INTELLIGENT CROSS LLC.
Dark pool activity in OCSL 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 OCSL.
Weekly History
| Week | Shares | DP % | WoW |
|---|---|---|---|
| 2026-07-06 | 302.3K | — | -15.4% |
| 2026-06-29 | 357.3K | — | +12.4% |
| 2026-06-22 | 317.8K | — | -29.4% |
| 2026-06-15 | 450.1K | — | -0.8% |
| 2026-06-08 | 453.8K | — | -12.8% |
| 2026-06-01 | 520.6K | — | +41.1% |
| 2026-05-25 | 368.9K | — | -34.8% |
| 2026-05-18 | 565.6K | — | +16.7% |
| 2026-05-11 | 484.6K | — | -49.7% |
| 2026-05-04 | 962.9K | — | +40.8% |
| 2026-04-27 | 683.7K | — | — |
| 2026-03-23 | 387.9K | — | -53.7% |