Tokyo stocks rose 1.90 percent Thursday as the yen fell on speculation that Japan's premier will be unseated in elections next month by a challenger who wants "unlimited" central bank easing.
The benchmark Nikkei 225 index at the Tokyo Stock Exchange added 164.99 points to 8,829.72 by the close, while the broader Topix index of all first-section shares rose 2.09 percent, or 15.10 points, to 737.51.
However, Sony plunged 8.85 percent to 793 yen on worries about its new $1.9 billion bond issue.

