- scripts/backfill_finra_short_volume_cdn.py: bulk backfill FINRA short
sale CDN files (400d) into short_sale_daily table (382K rows inserted)
- apps/intraday_bt/scripts/diag_orb_short_volume_v46.py: Phase 1 diagnostic
on V46 400d trade set (180 trades, 99% coverage)
- scripts/audit_short_volume_coverage.py: fix asyncpg date param types
Result: all three short-ratio features fail G2 (max +0.168R vs gate 0.30R).
Direction is INVERTED from Boehmer (short squeeze dominates over informed-bear
signal in gap-up ORB). V25 axis permanently closed. V46 terminal.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
I Luk Kim