TOKYO, May 16 (Xinhua) -- Tokyo stocks opened lower Wednesday following Wall Street's overnight decline and on reports just before the opening bell that Japan's economy shrunk at an annualized rate of 0.6 percent in the January-March quarter.

As of 9:15 a.m. local time, the 225-issue Nikkei Stock Average dropped 47.21 points, or 0.21 percent, from Tuesday to 22,770.81.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, lost 2.24 points, or 0.12 percent, to 1,802.91.

Bank, mining, and oil and coal product-linked issues comprised those that declined the most in the opening minutes after the morning bell.