text: Nikkei Up But Caution Looms Before Fed  TOKYO (Reuters) - Tokyo's Nikkei average rose 0.13 percent  by midday on Tuesday as investors sought bargains among  technology firms, but gains were limited by caution ahead of a  monetary policy meeting in the United States.
inputs: Nikkei Up But Caution Looms Before Fed  TOKYO (Reuters) - Tokyo's Nikkei average rose 0.13 percent  by midday on Tuesday as investors sought bargains among  technology firms, but gains were limited by caution ahead of a  monetary policy meeting in the United States.