The Topix index also opened in positive territory, rising by 0.26% to 2,745.23 points, two minutes after the start of the session, at 9:02 a.m. local time (1:02 a.m. in Lisbon).
The Nikkei index reflects the unweighted average of the 225 leading stocks on the Tokyo Stock Exchange, while the Topix index groups the values of the 1,600 largest listed companies.
