American Electric Power Company, Inc. Market Cap
Data as of June 01, 2026
Market Cap
$68.92B
Stock Price
$126.67
Shares Outstanding
$544M
Classification
Large Cap
How It's Calculated
$68.92B = $126.67 × $544M
What This Means
American Electric Power Company, Inc. has a market capitalization of $68.92B, classifying it as Large Cap — a major company by market standards. Market cap represents the total value of all outstanding shares and is a key indicator of a company's size.
About American Electric Power Company, Inc.
American Electric Power Company, Inc. (AEP) operates in the Utilities sector, specifically in Utilities - Regulated Electric. With a market capitalization of about $68.92B, it ranks as a large-cap stock — a major established company.
Shares recently traded near $126.67, within a 52-week range of $100.72 to $139.44 (-9.2% from the high, +25.8% from the low). Beta of 0.55 indicates relatively lower volatility versus the market.
Trailing profit margin is about 16.3%, 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 Electric Power Company, Inc. 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 Utilities names on our S&P 100 coverage, American Electric Power Company, Inc.'s market cap of $68.92B can be compared with peers such as NEE ($181.47B), SO ($103.77B), DUK ($95.68B). Sector context helps interpretation, but each company's growth profile and balance sheet differ — use multiple metrics before drawing conclusions. View all Utilities stocks.
Key Takeaways
- AEP is grouped in the Utilities sector for peer comparisons.
- Recent beta of 0.55 suggests lower-than-market price sensitivity.
- Trailing profit margin of 16.3% provides context for how much earnings support the headline multiple.
Related Tools & Guides
Explore calculators and guides connected to this metric, or view all metrics for AEP.
Calculated Market Cap
$68.92B
Sector
Utilities
Other AEP Metrics
Frequently Asked Questions
What is AEP's market capitalization?
Market cap is the total market value of all outstanding shares. American Electric Power Company, Inc.'s market cap is about $68.92B on this page's data date.
Is AEP a mega/large/mid/small cap?
With roughly $68.92B in market cap, American Electric Power Company, Inc. falls in the large-cap category in our size buckets (mega ≥$200B, large ≥$10B, mid ≥$2B). Size affects liquidity, index weight, and typical volatility.
How does market cap relate to AEP's risk profile?
Larger caps tend to have broader analyst coverage and deeper trading; smaller caps can offer growth but with higher idiosyncratic risk. Use market cap together with debt, cash flow, and Utilities position — not alone.
Calculate the market cap for any stock with our free calculator.
Open Market Cap Calculator →