Why is AI suddenly in a bear market? Because Wall Street has gotten nervous – not about today's orders, but about tomorrow's. Investors are increasingly questioning whether today's AI spending spree still has legs.

(Bloomberg) -- A selloff in chipmakers gathered pace, driving the high-profile group of stocks to a bear market on worries that the artificial-intelligence spending spree is…

Wall Street's semiconductor index slipped into bear market territory after tumbling more than 20% from its June peak, raising fresh questions over the sustainability of the…