Amazon is proving its AI capex earns strong returns, which is why the stock rose despite higher spending. AWS growth accelerated to about 37% on a $169B run rate with a 39.4% margin, and its $496B backlog more than doubled, with most new 2027 capacity booked. Unlike Google, management gave a payback timeline: servers break even in under three years, last five to six, and most AI contracts run at least five. Upside depends on the larger $220B 2026 capex repeating those returns in 2027-2028. x.com x.com x.com x.comÂ
