Methodology
Data freshness
Every public number needs a source time and a collection time.
Updated 2026-09-25
Production pages would show source time, collection time, last verified time and a staleness threshold per field. A failed feed stays on screen with an explicit delayed or unavailable badge. It is not replaced with a quiet blank.
This build has one frozen snapshot time. The cash-session clock is the exception: it uses the real primary-market calendar so you can see open, closed, weekend and holiday states. Prices do not move with that clock.