Tokyo Stocks Drop as Tech Falls on Fears of Weaker AI Chip Demand Tokyo, 28 Jan (ONA) --- Tokyo stocks ended lower today, led by selling of technology shares on fears that demand for semiconductors used in artificial intelligence could weaken after a low-cost AI model was developed by a Chinese startup. The 225-issue Nikkei Stock Average ended down 548.93 points, or 1.39 percent, from Tuesday at 39,016.87. The broader Topix index finished 1.17 points, or 0.04 percent, lower ...