Tokyo stocks opened higher on Thursday morning bolstered by the gains on Wall Street overnight. At 9:15 a.m., the 225-issue Nikkei Stock Average was up 58.76 points, or 0.39 percent, from Wednesday to 15,005.08. The broader Topix index of all First Section issues on the Tokyo Stock Exchange gained 3.93 points, or 0.32 percent, at 1,215. 29.