Japan’s Nikkei Stock Average Slides on Tech, Resources Sell-off despite Weaker Yen (UPDATE 1)

Reuters

12:40 JST, February 2, 2026 (updated at 16:45 JST)

TOKYO, Feb 2 (Reuters) – Japan’s Nikkei share average slumped the most in a week on Monday as a drop in technology and resource stocks outweighed early gains driven by a weaker yen.

The benchmark Nikkei 225 Index .N225 fell 1.2% to close at 52,655.18, while the broader Topix .TOPX slid 0.85% to 3,536.13.

The Nikkei climbed 1.7% in early trading, supported by a decline in the yen that helped exporters and an election poll suggesting a possible landslide victory for the party of fiscally dovish Prime Minister Sanae Takaichi.

The momentum, however, changed as artificial intelligence-related shares extended declines, following a drop by AI bellwether Nvidia on Friday on reports it was reconsidering a $100 billion investment in OpenAI.

Japanese resources shares fell along with a plunge in prices for gold and silver. U.S. President Donald Trump’s pick of Kevin Warsh as the next head of the Federal Reserve has sparked a rebound in the dollar and a drop in precious metals on expectations he will favor a smaller balance sheet.

“Regarding these massive investments and capital flows into AI infrastructure, there may be signs of a gradual shift towards more realistic assessments,” said Takahisa Odaka, a senior strategist at Nomura Securities. “The market views (Warsh) as hawkish, particularly regarding the risk that the Fed might accelerate shifting its balance sheet from expansion to contraction.”

There were 93 advancers on the Nikkei index against 132 decliners. The largest losers were semiconductor inspection equipment maker Lasertec 6920.T, down 14%, followed by Sumitomo Metal Mining Co Ltd 5713.T, which sank 11.4%.

The largest percentage gainers were truckmaker Hino Motors 7205.T, up 6%, followed by construction equipment maker Komatsu 6301.T, which climbed 4.8%.