Stock market selloff goes global as AI bubble concerns grow

Markets around the world are slumping amid growing worries that artificial intelligence companies’ sky-high valuations could be coming back down to Earth. Markets in Asia and Europe followed Tuesday’s steep falls in the U.S. after the bosses of Goldman Sachs and Morgan Stanley, among others, warned that a correction of as much as 20% could be imminent. Chipmaking giant Taiwan Semiconductor Manufacturing Co. (TSMC) fell more than 3% Wednesday. In South Korea, chip firms including Samsung and SK Hynix drop ...