Amazon shares surged significantly after reporting robust cloud sales growth. This performance reinforced investor confidence in the company's substantial artificial intelligence investments. The tech giant posted its strongest cloud growth in over four years. This indicates a fresh wave of demand justifying increased capital spending plans. Amazon's results show measurable returns from Big Tech's AI spending.

Cloud sales boom as company ramps up data center buildout

July 30 : Amazon.com topped market expectations for quarterly cloud revenue growth on Thursday on the back of surging enterprise AI spending, signaling the company's hefty…