Amazon.com IncAmazon's AWS operating income beat, efficiency gains from Trainium chips, and lower valuation multiple vs Microsoft indicate a more balanced risk-reward.
Amazon holds a modest investment edge over Microsoft as both cloud giants pour record capital into artificial intelligence infrastructure, according to a Zacks Investment Research analysis. Amazon Web Services posted first-quarter 2026 operating income of $14.2 billion, driven by efficiency gains from custom Trainium chips, while Microsoft's Azure revenue grew 40% in its fiscal third quarter but saw gross margin narrow to its lowest since 2022. Amazon's forward price-to-sales ratio of 3.04 sits well below Microsoft's 7.75, and Amazon shares have gained 8.3% year to date compared with a 16.8% decline for Microsoft. The report notes Amazon's diversified earnings base and expanding agentic AI stack offer a more balanced risk-reward setup, while Microsoft faces near-term uncertainty from steep capital spending and margin pressure despite strong Azure growth.
Amazon.com IncAmazon's AWS operating income beat, efficiency gains from Trainium chips, and lower valuation multiple vs Microsoft indicate a more balanced risk-reward.
Microsoft CorporationMicrosoft's Azure gross margin narrowed to lowest since 2022, steep capital spending, and 16.8% YTD share decline highlight near-term uncertainty.