9,165 chain-graded leans, 3 walk-forward days, as-of screening (no
self-selection). FOLLOW +$2.51/lean pooled (59% hit @ 58c avg), positive
ALL THREE days (+1.60/+2.20/+3.60) — day-consistency the surge signal
never had under truth. Size structure tells the mechanism: $150-500
leans FOLLOW +$2.90 (absorbed retail flow = signal); $2k+ leans FOLLOW
-$1.73 / FADE +$13.38 n=422 (whale bags = makers getting picked off).
Caveats: last-print entry optimism, thin vs the fee hurdle as taker
(maker-entry execution is the natural pairing), $2k+ fade cell needs an
event-concentration check before pre-registration.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>