BrainTrust Investment Lab › SS2 — Change Data Capture System › finra_short
finra_short — the SS2 walk
FINRA short interest — 3.6 million rows taken from the true bulk source. The provider's revision flags are handled by declared rule, so a revised figure can never masquerade as the original print.
One source per sheet; every step CERTIFIED or OWED by BrainTrust Staff, matched against the book’s page.
steps certified
2 of 4
step strategy · the CDC mode is DECLARED by LOOKUP, enum-gated against the six signed modes ✓ CERTIFIED · p.451-452
step audit_columns · audit columns tested, not trusted ✓ CERTIFIED · p.452
step deletes · deletion visibility MEASURED by the mode's own instrument OWED · released, waiting on its seat · p.452
step reason_codes · corrections distinguished from true updates -- candidates ENUMERATED, every one… awaiting · p.451