Asian markets retreat after rebounding AI stocks send the S&P 500 to brink of a new record

Asian markets retreated, with South Korea's Kospi dropping 7.6% despite AI stocks rebounding on Wall Street, which pushed the S&P 500 near a record. Samsung and SK Hynix shares fell despite strong earnings, raising concerns about AI sector overvaluation. SK Hynix plans a $28 billion U.S. IPO, and AI-related companies like Broadcom and TeraWulf saw mixed performance.