Asian shares retreat, tracking tech losses on Wall Street

Asian shares have retreated, tracking a decline on Wall Street led by technology shares including Nvidia and other stars that have been riding the mania surrounding artificial-intelligence. Benchmarks fell in Japan, South Korea and Taiwan, pulled lower by selling of computer chip makers. China’s central bank opted to keep the benchmark interest rate unchanged, as markets had expected. Japan reported its exports fell slightly more than expected in July under pressure from higher tariffs on goods shipped to the U.S. On Tuesday, the S&P 500 lost 0.6% in its third straight loss after setting its all-time high last week. The Dow Jones Industrial Average inched up by less than 0.1%, and the Nasdaq composite sank 1.5%.