Strategy's new Bitcoin Banking Adoption Index scores 25 major banks — and the map is lopsided. US banks lead at ~42% (Fidelity tops it at 71%), Europe sits ~29%, and Japan trails at ~18% (SMBC and RBC at just 13%).

One caveat: this is Strategy's own index, the market's biggest BTC bull, and the full methodology isn't public yet. Directional, not gospel.