Tokyo: Tokyo stocks extended gains from the bell on Tuesday as a comparatively weak yen, a strong showing on US and European bourses, as well as hopes for the domestic economy following the government here saying it will compile a new stimulus package, contributed to an upbeat market mood. As of 9:15 a.m., the 225-issue Nikkei Stock Average gained 364. 74 points, or 2.32 per cent, from Monday to 16,073.56. The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, added 28.75 points, or 2.29 per cent, to 1,284.54. All industry categories on the main section advanced into positive territory.