Amazon shares slide as weak revenue, AI spending rattle investors

Amazon posted sales in last year’s final quarter that topped Wall Street estimates on Thursday, as a strong holiday shopping season boosted its retail business, but investors drove shares down due to weakness in the cloud computing unit.Amazon’s shares fell 3.5% in extended trade after the report, erasing about $90 billion worth of stock market value.The company’s cloud unit, Amazon Web Services (AWS), reported a 19% rise in revenue to $28.79 billion, falling short of estimates of $28.87 billion, according ...