Tokyo shares ended the morning session sharply higher on Wednesday on a weaker yen and a positive reception to the listing of Japan Post Holdings Co. and its banking and insurance units.
The 225-issue Nikkei Stock Average skyrocketed 451.68 points, or 2.42 percent, from Monday to 19,134.92, Xinhua news agency reported.
The broader Topix index of all First Section issues on the Tokyo Stock Exchange was up 28.23 points, or 1.85 percent, to 1, 555.20.
The Tokyo stocks markets were closed on Tuesday for a national holiday.