Amazon's capital expenditure surged to $44.2 billion in the first quarter, marking a 77% increase from the $25 billion spent in the same period last year. This significant rise underscores Amazon's intensified investment in AI infrastructure, with its trailing twelve-month capex reaching $147.3 billion, up 67% from the previous year. Despite this heavy spending, Amazon's operating cash flow rose 30% to $148.5 billion, though free cash flow dwindled to $1.2 billion. Amazon Web Services (AWS), the company's cloud computing division, met revenue expectations, reinforcing its role as a critical driver of Amazon's growth strategy. Analysts attribute the market's positive outlook on Amazon's stock to AWS's performance and optimistic guidance, despite the company's near-zero free cash flow. Amazon's substantial investment in AI infrastructure through AWS is seen as a strategic move to secure future growth, although it carries risks if AI demand or AWS revenue growth falters.