shadows scored: 78/79 (1 immature/skipped), names total: 3900
mean IC: +0.0134 (t=+0.74, n=78, bootstrap p=0.2322) sign hit-rate: 51.6% (null 50%) top-half minus bottom-half realized: +0.5102% per 21 bars
per-date IC (first 10): 2020-01-15:-0.05, 2020-02-15:+0.08, 2020-03-15:-0.07, 2020-04-15:+0.11, 2020-05-15:+0.12, 2020-06-15:-0.16, 2020-07-15:-0.10, 2020-08-15:-0.00, 2020-09-15:+0.40, 2020-10-15:+0.16
VERDICT: WEAK (positive but insignificant — keep shadow, no enforcement) Caveat: backfilled windows may overlap the model's pretraining corpus; treat as directional, confirm on live forward shadows.