Japan's Nikkei share average retreated from a record peak to end nearly flat on Wednesday, as investor caution grew about the fast-paced rally in AI-related stocks.
The Nikkei closed at 64,999.41, after rising as much as 2.2% earlier in the session to hit a record intraday high of 66,428.81. The broader Topix fell 0.52% to 3,918.01.