Japan’s benchmark Nikkei share average surged to a fresh record on Wednesday, recovering from early losses as investor enthusiasm over artificial intelligence (AI)–related investments outweighed weakness in other sectors.
The Nikkei 225 Index gained 0.3% to finish the day at an unprecedented 45,630.31 points. The index had slipped as much as 0.6% in morning trading before rallying in the afternoon. The broader Topix gauge also advanced, rising 0.2%.
Market analysts said optimism surrounding technology and AI-related companies helped drive the turnaround, with heavyweight stocks leading the gains. Industrial conglomerate IHI soared 9.7%, topping the index. It was followed by tech investment giant SoftBank Group, which climbed 6% as traders continued to bet on its exposure to AI-driven innovation.
The rally in those names helped offset losses elsewhere, particularly among utilities and gaming stocks. Tokyo Electric Power tumbled 4.9%, making it the steepest decliner on the Nikkei, while video game developer Nexon dropped 3.8%.
The record close comes amid a period of heightened global attention on Japan’s stock market. Investors have been drawn to the country’s corporate reforms, relative economic stability, and its growing role in technology supply chains, particularly in semiconductors and AI infrastructure.
“AI remains the dominant driver of investor sentiment,” one Tokyo-based market strategist noted. “Despite some early weakness, the momentum in large-cap names tied to AI was strong enough to lift the entire market to new highs.”
Japan’s equity rally mirrors trends in the United States, where AI-related companies have also fueled market gains. However, some analysts caution that the pace of the advance may invite volatility in the weeks ahead.
The gains in the Nikkei mark yet another milestone in a year of strong performance for Japanese equities. The index has been steadily climbing as both domestic and foreign investors pour money into Tokyo’s markets, encouraged by a weak yen that boosts export competitiveness and robust corporate earnings.
Still, the uneven performance across sectors highlights ongoing challenges. Utilities and energy-related companies remain under pressure, while parts of the entertainment and gaming industries have struggled to match broader market momentum.
With Wednesday’s advance, investors will be watching closely to see if the Nikkei can sustain its record-breaking trajectory. Analysts say the market’s direction will likely depend on the durability of AI-driven optimism and whether it can counterbalance pressure from weaker performers in other sectors.
