Market Cap

AT&T Market Capitalization:

AT&T Inc.

$175.61 Billion

USD as of Jan. 1, 2026

business AT&T Company Profile

AT&T Main Stock Listing

NYSE: T

Market capitalization history of AT&T

Market capitalizations are calculated from the opening stock price at the beginning of each month.

Top Competitors by Market Capitalization

Industry: Telecom Services
Company Market Cap (USD)
China Mobile $245.54 B
T-Mobile US $224.61 B
Verizon $170.85 B
Deutsche Telekom $163.47 B
SoftBank Group Corp. $152.95 B
Sector: Communication Services
Company Market Cap (USD)
Alphabet $3.806 T
Meta $1.639 T
Tencent $711.14 B
Netflix $385.55 B
China Mobile $245.54 B

Yearly evolution of AT&T market cap

Date Market Cap YoY Change
Jan. 1, 2026 $175.61 B 8.63%
Jan. 1, 2025 $161.66 B 31.22%
Jan. 1, 2024 $123.19 B -6.11%
Jan. 1, 2023 $131.21 B -0.39%
Jan. 1, 2022 $131.72 B -10.93%
Jan. 1, 2021 $147.89 B -23.90%
Jan. 1, 2020 $194.33 B 25.15%
Jan. 1, 2019 $155.27 B -19.73%
Jan. 1, 2018 $193.45 B -11.17%
Jan. 1, 2017 $217.78 B 16.92%
Jan. 1, 2016 $186.27 B 9.54%
Jan. 1, 2015 $170.05 B -1.20%
Jan. 1, 2014 $172.11 B -4.23%
Jan. 1, 2013 $179.71 B 18.29%
Jan. 1, 2012 $151.92 B 6.87%
Jan. 1, 2011 $142.15 B 8.52%
Jan. 1, 2010 $131.00 B 3.01%
Jan. 1, 2009 $127.17 B -36.04%
Jan. 1, 2008 $198.82 B 2.29%
Jan. 1, 2007 $194.38 B 45.01%
Jan. 1, 2006 $134.04 B 9.22%
Jan. 1, 2005 $122.73 B -6.82%
Jan. 1, 2004 $131.72 B 4.34%
Jan. 1, 2003 $126.24 B -34.74%
Jan. 1, 2002 $193.45 B -22.54%
Jan. 1, 2001 $249.75 B

Market capitalization is calculated from the opening stock price at the beginning of each year.

Company Description

AT&T Inc. is a multinational conglomerate holding company. Tracing its origins to 1877, AT&T is engaged in telecommunications, it operates mobile and fixed telephone services in the United States through AT&T Communications. It is also the parent company of mass media conglomerate WarnerMedia, one of the world’s largest media and entertainment companies.

business AT&T Company Profile

AT&T Categories

United States languages Communication Services languages Telecom Services
United States Communication Services United States Telecom Services

Stocks & Indices

AT&T Inc. has the following listings and related stock indices.


Stock: NYSE: T

Stock: BCBA: T

Stock: BMV: T

Stock: Bovespa: ATTB34

Stock: BVS: T

Stock: MTA: T

What is a company's market capitalization?

The market capitalization of a company, more simply referred to as "market cap", is the total market value of a publicly traded company's outstanding shares. It is often considered as a key indicator of what a company is worth.