US stock futures inched lower after Amazon (AMZN) joined Google (GOOG) and other AI-focused Big Tech companies with ...

Wall Street is buying what CEO Mark Zuckerberg is selling. There are reasons for this optimism - and reasons to question it.

E-commerce giant Amazon reported strong earnings Thursday but, like its big tech peers Microsoft and Google, saw its stock price fall on concerns over high AI investment costs. The mounting expenses ...