Japan's Nikkei fell 0.5%, while South Korea's Kospi lost 0.8%. (EPA Images pic)HONG KONG: Asian share markets slipped on Monday as worries about the sustainability of the AI investment boom loomed over the tech sector, while the high price of oil limited the safe-haven appeal of sovereign bonds.

Concerns about negative cash flow and the sheer scale of AI capex saw the cost of insuring against corporate defaults blow out last week, while gold hit a one-year low amid talk stressed investors were selling to raise money for margin calls.

An added wrinkle is the midterm elections in the US, where a win by Democrats in either or both houses could result in more political hurdles for data centres.

Adding to the air of unease were withdrawals from Binance as the world's biggest cryptocurrency exchange went back online on Sunday after hackers stole billions from the platform last week.