Caution warranted over tech threat, investors’ AI exuberance

Volatility comes with rallies. As stock markets in China and overseas advance, they are sending mixed signals. Investors’ love-hate relationship with artificial intelligence (AI) is greatly to blame as they rotate between pure AI plays and their underlying hardware and chip producers. Eddie Yue Wai-man, chief executive of the Hong Kong Monetary Authority, has therefore issued a warning about an AI bubble as well as financial systems being hacked or otherwise harmed by the new tech. Stock indexes...