Asian shares trade mixed after AI darlings prop up Wall Street

Asian shares are trading mixed after overseas markets got a big lift from optimism over AI technology. Shares rose in Hong Kong on Tuesday, while slipping in Tokyo, Sydney and Seoul. On Wall Street, Nvidia and other AI superstar stocks propped up share prices. The S&P 500 rose 0.2% Monday, even though the majority of stocks within the index fell. The Dow Jones Industrial Average dropped 0.5%, and the Nasdaq composite rose 0.5%. Nvidia was the strongest force lifting the market, much as it has been throughout 2025. Another AI winner, Amazon, rallied after announcing a deal with OpenAI.