October 19, 2026
- Dark pools executed 19.63% of US equity volume last month, down 9 bps from August’s 19.72%
- Dark-pool average daily volume rose 3.24% m/m, to 3.33 billion shares, compared with a 3.74% increase for market-wide ADV
- Single-dealer platforms, block pools and overnight ATSs were a mixed bag last month
- Morgan Stanley received SEC approval for a fourth ATS, MS Closing Cross
- Hidden orders on lit markets executed 12.17% of US volume in September, down 12 bps from August
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