The Nikkei posted a sharp rise of more than ¥1,000 at one point, which is believed to have supported the market. Reports that Japan Post Bank is taking a stake in Matsui Securities were also reported as a market factor.
The Nikkei Stock Average rose sharply, with its gain reported to have exceeded ¥1,000. The market's movement is believed to have improved investor sentiment.
At the same time, reports said that Japan Post Bank was pursuing an investment in Matsui Securities, which has been cited as a market factor.