LEARN · DATA
XBRL is a structured filing format. SEC companyfacts expose tagged financial concepts (revenue, EPS, etc.) as machine-readable time series per CIK.
Structured facts let research pages cite filing periods precisely. When a tag is absent, inventing a number would break the trust model.
Nightly fundamentals sync caches companyfacts for S&P 100 names. Stock pages and EQS read that cache; thin pages stay noindex until gates clear.