Per-day observation status

For every calendar day in the lookback window, oldest first, why a price is or is not present: traded, weekend, holiday, pre_listing, delisted or no_print. Use it before computing returns over a series with gaps. A no_print day is a listed trading day with no price bar: treat it as not-a-return (carry forward or mask), never as 0%. meta.status_counts tallies the window; meta.codes defines each status and meta.classification_limits states what the labels cannot tell apart (no_print does not separate an illiquid no-trade from a suspension or missing data; pre_listing needs a known listing date). traded counts every price bar held, including bars /v1/stocks/{symbol}/prices/daily withholds as unverified, so that route can return fewer rows.