RESEARCH BASIS Validated on 3,645 × 1h bars (Dec 2025 – Jun 2026). Only confirmed edge: ARCH vol clustering — today's range predicts tomorrow's (R²≈0.35-0.42). Active in LoVol/MidVol regimes only; disappears in HiVol. Direction is statistically random — all strategies use structure-based entry, not prediction. D (Random) is the benchmark; any strategy that can't beat it is noise.