AT&T (T) Market Cap 1985–2026

As of November 13, 2026, AT&T had a market cap of $149.97 billion, which remained unchanged from the previous trading day. Market capitalization, often referred to as market cap, represents the total value of a company's outstanding shares on the stock market and is a common measure of its overall size and valuation.

Data updated: Nov 13, 2026, 4:00 PM ET
AT&T logo

AT&T Inc. (T)

🌍 United States 📈 NYSE 🏭 Communication Services 🏢 Diversified Telecommunication Services
Latest Market Cap
$149.97B — 0.00%
Start of 2026
$176.1B ▼ 14.84%
1 Year Ago
$182.55B ▼ 17.85%
All-Time High
$219.183B ▼ 31.58%


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Note: Each point on the chart represents the market capitalization at the end of the trading day.
Source: Data compiled from EDGAR filings, Bloomberg and Yahoo Finance.

📈 AT&T Market Cap History by Year and Month

AT&T Market Cap History by Year and Month
Year / MonthMarket Cap% Change
2026$149.97B▼ 14.84%
$149.97B▲ 3.60%
$144.76B▼ 13.75%
$167.84B▼ 5.76%
$178.09B▲ 11.35%
$159.93B▲ 10.93%
$144.17B▼ 16.34%
$172.32B▼ 5.09%
$181.56B▼ 10.30%
$202.41B▲ 3.22%
$196.09B▲ 6.32%
$184.44B▲ 4.74%
2025$176.1B▲ 7.77%
2024$163.398B▲ 36.19%
2023$119.977B▼ 8.56%
2022$131.208B▼ 1.35%
All market cap values reflect closing prices for the period shown.

📊 AT&T Market Cap and Other Industry Peers

Below are selected companies for comparison based on industry, sub-industry, and sector:

  1. $255.21B
  2. $205.82B
  3. $192.14B
  4. $180.63B
  5. $149.97B
  6. $125.91B
  7. $89.3B
  8. $42.65B
  9. $41.62B
  10. $35.72B
  11. $29.09B
  12. $27.35B
  13. $26.66B
  14. $25.77B
  15. $23.93B
  16. $19.01B
  17. $16.12B
  18. $15.84B
  19. $11.18B
  20. $9.8B


Data reflect the most recent market capitalization values available.

Note: Market capitalization figures are based on available sources and may differ slightly from actual values, particularly for historical data.