AT&T Inc. Market Cap
Data as of June 01, 2026
Market Cap
$172.32B
Stock Price
$24.80
Shares Outstanding
$7B
Classification
Large Cap
How It's Calculated
$172.32B = $24.80 × $7B
What This Means
AT&T Inc. has a market capitalization of $172.32B, 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 AT&T Inc.
AT&T Inc. (T) operates in the Communication Services sector, specifically in Telecom Services. With a market capitalization of about $172.32B, it ranks as a large-cap stock — a major established company.
Shares recently traded near $24.80, within a 52-week range of $22.95 to $29.79 (-16.8% from the high, +8.1% from the low). Beta of 0.42 indicates relatively lower volatility versus the market.
Trailing profit margin is about 16.9%, signaling a solid profit margin for its industry.
Understanding This Metric
Market capitalization sums the market value of all outstanding shares. It helps classify AT&T 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 Communication Services names on our S&P 100 coverage, AT&T Inc.'s market cap of $172.32B can be compared with peers such as GOOGL ($4.61T), GOOG ($4.56T), META ($1.61T). Sector context helps interpretation, but each company's growth profile and balance sheet differ — use multiple metrics before drawing conclusions. View all Communication Services stocks.
Key Takeaways
- T is grouped in the Communication Services sector for peer comparisons.
- Recent beta of 0.42 suggests lower-than-market price sensitivity.
- Trailing profit margin of 16.9% 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 T.
Calculated Market Cap
$172.32B
Sector
Communication Services
Other T Metrics
Frequently Asked Questions
What is T's market capitalization?
Market cap is the total market value of all outstanding shares. AT&T Inc.'s market cap is about $172.32B on this page's data date.
Is T a mega/large/mid/small cap?
With roughly $172.32B in market cap, AT&T 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 T'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 Communication Services position — not alone.
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