American Express Co Market Cap

Data as of August 04, 2026

How It's Calculated

What This Means

American Express Co has a market capitalization of $227.07B, classifying it as Mega Cap — one of the largest companies in the world. Market cap represents the total value of all outstanding shares and is a key indicator of a company's size.

About American Express Co

American Express Co (AXP) operates in the Financial Services sector, specifically in Financial Services. With a market capitalization of about $227.07B, it ranks as a mega-cap stock — one of the largest publicly traded companies.

Shares recently traded near $344.72, within a 52-week range of $288.34 to $387.49 (-11.0% from the high, +19.6% from the low). Beta of 1.07 is broadly in line with typical market sensitivity.

Trailing profit margin is about 14.1%, signaling a solid profit margin for its industry.

Understanding This Metric

Market capitalization sums the market value of all outstanding shares. It helps classify American Express Co by size — mega-cap, large-cap, and mid-cap stocks tend to have different liquidity, volatility, and index inclusion profiles. Size alone does not determine quality, but it frames risk and how widely the stock is held.

Sector Comparison

Among Financial Services names on our S&P 100 coverage, American Express Co's market cap of $227.07B can be compared with peers such as BRK-B ($992.60B), V ($651.42B), MA ($506.64B). Sector context helps interpretation, but each company's growth profile and balance sheet differ — use multiple metrics before drawing conclusions. View all Financial Services stocks.

Key Takeaways

• AXP is grouped in the Financial Services sector for peer comparisons.
• Recent beta of 1.07 suggests market-like price sensitivity.
• Trailing profit margin of 14.1% provides context for how much earnings support the headline multiple.

Related Tools & Guides

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