TOKYO, Aug. 19 (Xinhua) -- Tokyo stocks opened higher Monday following a positive lead from Wall Street overnight, with investors buying back issues that fell heavily last week.

File photo: AFP

As of 9:15 a.m., the 225-issue Nikkei Stock Average gained 170.13 points, or 0.83 percent, from Friday to 20,588.94.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, added 8.64 points, or 0.58 percent, at 1,493.93.

Metal product, securities house and bank-oriented issues comprised those that gained the most in the opening minutes after the morning bell.