Tokyo stocks opened moderately higher on Tuesday, tracking a rise in U.S. shares overnight with investors closely eying earnings reports this week from U.S. heavyweights.

As of 9:15 a.m., the 225-issue Nikkei Stock Average gained 16.85 points, or 0.09 percent, from Monday to 18,892.73.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, added 1.72 points, or 0.11 percent, to 1,504.91.

Insurance, securities and iron and steel issues comprised issues that advanced the most in early trade.