ABC News·2025-11-18 10:05Market Overview - Global shares have declined significantly, with benchmarks in Tokyo and Seoul dropping over 3% due to the impact of Nvidia and other AI-related stocks pulling U.S. markets lower [1][2] - The S&P 500 and Dow Jones Industrial Average futures are down 0.3%, reflecting concerns over high stock prices in the AI sector [2] Regional Market Performance - Asian markets experienced a downturn, with Japan's Nikkei 225 falling 3.2% to 48,702.98, and South Korea's Kospi dropping 3.3% to 3,953.62 [5][6] - Chinese markets also faced selling pressure, with Hong Kong's Hang Seng declining 1.7% and the Shanghai Composite slipping 0.8% [6] Key Company Movements - Nvidia's stock decreased by 1.8%, although it remains up nearly 40% year-to-date [7] - Other AI-related companies, such as Super Micro Computer, saw significant losses, with a 6.4% drop [7] - Major tech firms in Asia, including Samsung Electronics and TSMC, also reported declines, with Samsung down 2.8% and TSMC down 2.8% [5][6] Economic Indicators - The yield on 30-year Japanese government bonds surged to 3.31%, indicating rising risks associated with government spending and national debt management [4] - Anticipation of U.S. employment data release is affecting market sentiment, with potential implications for Federal Reserve interest rate decisions [3][10]