Asian shares fall as Wall Street AI rebound fails to lift markets

Asian shares mostly declined in cautious trading Tuesday after AI-related stocks rebounded on Wall Street, while other sectors remained shaky and oil prices stayed high. Japan's Nikkei fell 0.6%, South Korea's Kospi dropped 2.8%, and Hong Kong's Hang Seng declined nearly 1.0%. On Wall Street, the S&P 500 rose 0.4% and the Nasdaq rallied 1.1%, driven by Nvidia's 1.4% gain, though the Dow dipped 0.1% as most non-tech stocks fell. Investors await upcoming earnings reports, while Treasury yields hit multi-year highs, with the 10-year at 5.14%. Oil prices remained elevated, with U.S. crude at $103.50 a barrel amid uncertainty over the war with Iran. The dollar traded at 158.45 yen, and the euro was little changed at $1.1225.