Stock markets worldwide celebrated a historic milestone today as major indices simultaneously reached record highs, driven by strong corporate earnings and renewed economic confidence. The rally saw the S&P 500 surge 2.1%, while Asian and European markets posted similar gains. Analysts attribute the broad-based rally to better-than-expected economic data, falling inflation rates, and optimistic corporate guidance for the coming quarters. Tech stocks led the charge, with semiconductor and AI-related companies seeing particularly strong performance.