After Lagging the Market This Year, It's Time to Buy Amazon Stock

Amazon (AMZN) has underperformed the broader market in 2025, yet its recent Q2 results reveal robust, broad-based momentum across retail, AWS, and advertising, with net sales up 13% to $167.7 billion and operating income climbing 31% to $19.2 billion, driving an 11.4% operating margin. This performance is underpinned by 17% AWS revenue growth, 23% advertising revenue growth, and significant margin improvement in North American retail, all while making substantial investments in AI capacity. Despite heavy capital expenditures impacting free cash flow and cloud competition, the company's expanding profitability and strategic AI integration suggest its current valuation of approximately 35x earnings may present a compelling long-term opportunity, leveraging its relative stock weakness.

Analysis

Amazon's stock has materially underperformed the S&P 500 in 2025, creating a notable divergence from its strengthening business fundamentals. The company's second-quarter results demonstrated broad-based momentum, with net sales growing 13% year-over-year to $167.7 billion and operating income surging 31% to $19.2 billion. This drove a significant expansion in operating margin to 11.4% from 9.9% in the prior-year quarter. Key growth engines are performing robustly: AWS revenue increased 17%, advertising services revenue grew 23%, and the North American retail segment's operating income jumped 48%. While heavy capital expenditures for AI infrastructure have suppressed trailing-12-month free cash flow to $18.2 billion from $53 billion, these investments are positioned as a critical driver for future growth. The primary risks remain intense cloud competition from Microsoft and Alphabet and the potential for macroeconomic headwinds to impact consumer spending. Despite these factors and a valuation of approximately 35 times earnings, the clear operating leverage, demonstrated margin improvement across segments, and strategic pivot to AI suggest that current earnings multiples may not fully reflect the company's forward-looking profit potential.

Key Decisions for Investors

• Given the disconnect between strengthening fundamentals and relative stock underperformance, investors may consider the current price a strategic entry point for a long-term position in a high-quality compounder.
• Monitor capital expenditure trends and AWS operating margins closely, as these are key leading indicators of the return on AI investments and the company's ability to manage competitive pressures.
• While the company's AI initiatives are a significant tailwind, it is prudent to assess Amazon's progress relative to formidable competitors Microsoft and Alphabet to gauge market share dynamics in the cloud sector.
• The stock's valuation at 35x earnings requires conviction in the thesis that margin expansion and operating leverage will allow earnings to grow faster than revenue over the medium term.