Global Market: Japan’s Nikkei falls as AI concerns, global bond market stress weigh

What happened: Japan's Nikkei 225 fell 1.06% to 68,308.92 in early trading, with the Topix down 0.24% to 4,081.62, tracking Wall Street tech losses. Key numbers: Nikkei 225 down 1.06% to 68,308.92. Topix down 0.24% to 4,081.62. Household spending fell 3.1% year-on-year in August. SoftBank Group fell 5.40%. Furukawa Electric fell 4.83%. Why it matters: A Financial Times report on OpenAI's annualised revenue reignited concerns about the sustainability of the AI investment boom. Elevated euro zone borrowing costs and weak Japanese household spending also weighed on risk appetite.

Japan's Nikkei 225 fell 1.06% to 68,308.92 in early trading, with the Topix down 0.24% to 4,081.62, tracking Wall Street tech losses.

A Financial Times report on OpenAI's annualised revenue reignited concerns about the sustainability of the AI investment boom. Elevated euro zone borrowing costs and weak Japanese household spending also weighed on risk appetite.