Nikkei reaches 33-year high on weak yen and US optimism.
Japan's Nikkei share average rose to its highest level since July 1990, driven by optimism over a U.S. debt ceiling deal and a weaker yen. Shares of Japanese chip-related companies continued to outperform after AI euphoria lifted Wall Street peers. The Nikkei's higher weightage towards exporter stocks saw it reap greater gains from the yen's drop to the cusp of 141 per dollar for the first time in six months.