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Which Stock Should You Buy Now: Amazon or Costco?

Comparing Stocks: Amazon vs. Costco

Amazon and Costco are strong investments. Amazon leads in innovation while Costco excels in customer loyalty.

  • Amazon's stock rose 566% in a decade
  • Costco's stock gained 533% over the same period
  • Amazon has diverse revenue streams
  • Costco relies on membership loyalty
  • Amazon’s P/E ratio is lower than Costco’s
  • Amazon has more growth potential
  • Both companies show strong financial health

Amazon and Costco have greatly outperformed the market over the last decade, making them notable investment options. Amazon’s shares have increased by 566%, while Costco’s have risen by 533%, both significantly beating the broader market.

Amazon’s Diverse Growth Opportunities

Amazon stands out for its leadership in various sectors due to its culture of innovation. Its logistics network ensures fast shipping, while Amazon Web Services thrives, especially with the rise of artificial intelligence.

Amazon also benefits from a strong brand and significant financial resources, creating a tough competitive environment. Its price is currently $226.36, with a market cap of $2.4 trillion, and has a gross margin of 50.05%.

Costco’s Strong Customer Loyalty

Costco may seem unexciting compared to Amazon, but it’s highly effective. Its loyal customer base appreciates its high-quality goods at low prices in a simple shopping setting, supported by a membership model that encourages repeat purchases.

This approach generates a consistent revenue stream, yielding $1.3 billion in the first quarter of fiscal year 2026. With a market cap of $379 billion and a stock price of $854.50, Costco has also seen a 241% increase in net income from fiscal 2015 to fiscal 2025.

Valuation and Growth Variations

Both Amazon and Costco are excellent businesses, known for their value to customers and steady growth. Amazon may be a better buy now largely due to its lower price-to-earnings (P/E) ratio of 32.6 compared to Costco’s 46.3.

Moreover, Amazon’s engagement with innovative technologies gives it a stronger potential for future growth compared to Costco’s stable yet predictable business model.

Alex Chen

Alex Chen

Senior Technology Journalist

United States – California Tech

Alex Chen is a senior technology journalist with a decade of experience exploring the ever-evolving world of emerging technologies, cloud computing, hardware engineering, and AI-powered tools. A graduate of Stanford University with a B.S. in Computer Engineering (2014), Alex blends his strong technical background with a journalist’s curiosity to provide insightful coverage of global innovations. He has contributed to leading international outlets such as TechRadar, Tom’s Hardware, and The Verge, where his in-depth analyses and hardware reviews earned a reputation for precision and reliability. Currently based in Paris, France, Alex focuses on bridging the gap between cutting-edge research and real-world applications — from AI-driven productivity tools to next-generation gaming and cloud infrastructure. His work consistently highlights how technology reshapes industries, creativity, and the human experience.

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FAQ

Why should investors consider Amazon now?

Amazon's lower P/E ratio suggests better valuation.

How does Costco maintain customer loyalty?

Through low prices and a membership model.

What are Amazon's primary revenue sources?

E-commerce, cloud services, digital ads, healthcare.