Asian stock markets in Japan and South Korea opened significantly higher on Wednesday, April 1, following a strong performance in U.S. equities overnight. The Korean KOSPI index jumped 267.92 points, or 5.3%, to start at 5,320.38. Meanwhile, Japan's Nikkei 225 index rose 883.17 points, or 1.73%, opening at 51,946.89. This upward momentum reflects positive investor sentiment across the region.