Markets Tumble, Led by 5.8% Drop in Tokyo Following a Tech-Driven Retreat on Wall Street

World shares have tumbled, with Japan’s Nikkei 225 index slumping 5.8% as investors panicked over signs of weakness in the U.S. economy

World shares have tumbled, with Japan’s Nikkei 225 index slumping 5.8% as investors panicked over signs of weakness in the U.S. economy