Japan's Nikkei share average surged past the 65,000 level for the first time on Monday, as optimism for a deal to end the war in Iran boosted demand for risk assets. The benchmark Nikkei 225 Index rose 3.12% to 65,316.79 and touched an ‌all-time intraday ⁠record of 65,408.57. ⁠The broader Topix climbed 1.39% to 3,946.67. Japan's dependence on imported energy has made its economy vulnerable to a surge in oil prices caused by the nearly three-month conflict between the United States, Israel and Iran. U.S. President Donald Trump said over the weekend that Washington and Iran had "largely negotiated" a memorandum of understanding on a peace deal that would reopen ⁠the Strait ‌of Hormuz shipping lane for petroleum. He later said he had told his representatives not to rush into any deal. The ⁠news sparked a drop in oil prices along with gains in Japanese government bonds and the yen, adding to signs of improving risk sentiment, said Maki Sawada, an equities strategist at Nomura Securities. "Even if an agreement is reached, there remains uncertainty regarding whether it will be adhered to, as the Iranian government may not be united on the issue," Sawada said. "The 65,000 mark is ‌a psychological milestone, so reaching this level has led to some caution and selling pressure at such a high price range." There were 144 advancers on the ⁠Nikkei index against 79 decliners. Shares related to the red-hot AI sector, which is vulnerable to oil prices due to the enormous energy costs in computing, were among the steepest gainers. Lasertec, a semiconductor inspection equipment maker, and Fujikura, a cables and optical fibre producer, both jumped more than 11%. The largest losers were Archion, down 4.8%, followed by online retailer Rakuten Group, down 4.4%, and oil explorer Inpex, which slid 3.9%.