Global stock markets have experienced significant declines, with Tokyo stocks becoming pricier for foreign investors due to a stronger yen following the Bank of Japan's interest rate hike. Markets in Taiwan, South Korea, India, Australia, Hong Kong, and Shanghai also fell, while European indices like Paris's CAC-40 and Frankfurt's DAX dropped by 2.5% and 3.2%, respectively. Weaker US economic data has sparked fears of a slowdown, compounded by the US Federal Reserve's decision to maintain interest rates, unlike the Bank of England's recent cut. Concerns over overvalued tech stocks, particularly in AI, have intensified, with Intel announcing layoffs and Nvidia potentially delaying a launch. The Nasdaq saw a 10% correction, and Warren Buffett's Berkshire Hathaway sold half its Apple stake, contributing to declines in the Dow Jones and S&P 500.