Japan's Nikkei surged, buoyed by Nvidia's optimistic forecast and Warren Buffett's increased investments. The Nikkei closed 0.7% higher, with Advantest rebounding and Mitsubishi Corp gaining after Buffett raised his stake. SoftBank Group and Tokyo Electron also contributed significantly to the rise. Sompo Holdings' acquisition of Aspen Insurance Holdings further boosted market sentiment, while energy explorers led sectoral gains.