Key Tokyo stock indexes rode optimism over the outlook for the Japanese economy to 21-month highs Friday.

The Nikkei 225 advanced 135.50 points, or 1.19 percent, to close at 11,537.29, its highest close since June 6, 2002, when it ended at 11,574.94.

The broader Topix index of all first section issues on the Tokyo Stock Exchange gained 10.34 points, or 0.92 percent, to 1,131.01, its highest finish since June 3, 2002, when it ended at 1,132.22.