Precious-Metals Complex Mean-Reverting Portfolio (Zhao et al. 2018 MRP design): 3-Asset GDX/GLD/SLV Spread Built by Minimum-Predictability Weights Under a Variance Floor and an L1 Leverage Budget, Z-Score Entry/Exit With an Explicit Flat State (USEQ DAILY, long-short)
Outcome: Abandoned
GdxGldSlvMinPredictabilityMRP