All, Next Expiry, and Retail

Three slices of the same tape. All is the whole market, Next Expiry is the front expiration where the 0DTE flow lives, and Retail isolates retail-sized activity. They're inclusive tags rather than exclusive buckets; one small front-month trade counts in all three, so the curves overlap and never sum.

Retail is a size-based read, not account data. The 0DTE and retail cohorts are on Pro and up; Starter carries the whole-market read.