Nikkei 225 Crosses Historic 65,000 Milestone as Iran Peace Talks Ease Oil Prices
Tokyo, Monday, 25 May 2026.
Japan’s Nikkei 225 shattered the historic 65,000 barrier today, fueled by plunging oil prices as U.S.-Iran peace negotiations promise to reopen crucial global energy shipping lanes.
A Psychological Milestone Driven by Geopolitical Relief
On Monday, May 25, 2026, the Nikkei 225 Index closed at 65,316.79, registering a daily gain of 3.12 percent [1]. During the holiday-thinned trading session, the price-weighted index—which tracks 225 blue-chip companies on the Tokyo Stock Exchange [4]—touched an all-time intraday high of 65,408.57 [1]. This achievement comes less than a month after the index first crossed the 60,000 threshold on April 27, 2026 [2]. The broader Topix index mirrored this bullish sentiment, climbing 1.39 percent to settle at 3,946.67 [1]. The primary catalyst for this unprecedented rally stems from easing geopolitical tensions in the Middle East [1]. A nearly three-month conflict involving the United States, Israel, and Iran has kept global energy markets on edge [1]. However, over the weekend, U.S. President Donald Trump indicated that Washington and Tehran had largely negotiated a memorandum of understanding [1]. In a subsequent post on the Truth Social platform, the President noted that talks were “proceeding in an orderly and constructive manner,” though he cautioned his representatives not to rush the process [3]. The prospective deal aims to reopen the Strait of Hormuz, a critical maritime chokepoint connecting the Persian Gulf to the Gulf of Oman [GPT], which had been effectively closed by Tehran following a U.S. blockade on Iranian ports [3].
Energy Markets React and Asian Equities Follow
The prospect of unhindered shipping lanes immediately alleviated pressure on global crude supplies [3]. West Texas Intermediate (WTI) futures for July delivery plummeted 5.87 percent to $90.93 per barrel in early Asian trading, while Brent crude futures for July dropped 5.58 percent to $97.76 per barrel [3]. For Japan, an economy highly dependent on imported energy, this sharp decline in oil prices is a significant fundamental advantage [1]. Reduced energy costs directly benefit the operational margins of Japanese manufacturers and technology firms [1]. The optimistic risk sentiment rippled across the Asia-Pacific region, even as markets in the United States, Hong Kong, and South Korea remained closed for public holidays [3]. Taiwan’s Taiex index surged past the 43,000 mark, closing 2.91 percent higher at an all-time record of 43,495.92 [3]. Elsewhere, Australia’s S&P/ASX 200 gained 0.45 percent, China’s CSI 300 added 0.91 percent, and India’s Nifty 50 rose 1.09 percent [3].
Sector Winners and Losers in the Tokyo Market
Within the Tokyo Stock Exchange, market breadth was notably positive, with 144 constituents of the Nikkei 225 advancing against 79 decliners, leaving exactly 2 stocks unchanged [1][2]. The information technology sector, which commands the heaviest weighting in the index at 24.0 percent [2], led the charge [1]. Shares tied to the artificial intelligence industry—a sector highly sensitive to energy prices due to the massive computational power required—saw steep gains [1]. Semiconductor inspection equipment manufacturer Lasertec and optical fiber producer Fujikura both saw their stock prices jump by more than 11 percent during the session [1].
Caution Amidst the Rally
Conversely