Amazon shares jumped after AWS recorded its fastest growth in 18 quarters, strengthening CEO Andy Jassy’s argument that corporate AI adoption is still in its early stages; Microsoft’s record $450 billion market-value gain offered further evidence that Wall Street will reward costly AI expansion when revenue follows

Microsoft’s Azure grew 43% and passed $100bn for the year, its backlog hit $678bn, and the stock rose 2%. But AI capital spending keeps climbing.

Microsoft’s push into artificial intelligence is beginning to show stronger returns, with the company reporting a sharp rise in cloud revenue and a growing base of paid AI users…

Microsoft shares surged 16% after stronger-than-expected guidance, robust Azure cloud growth and rising Microsoft 365 Copilot adoption eased concerns over AI spending. The company…