Market Cap

American Tower Market Capitalization:

American Tower Corporation (REIT)

$91.36 Billion

USD as of July 1, 2024

business American Tower Company Profile

American Tower Main Stock Listing

NYSE: AMT

Market capitalization history of American Tower

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

Top Competitors by Market Capitalization

Industry: REIT—Specialty
Company Market Cap (USD)
Equinix, Inc. (REIT) $71.61 B
Crown Castle International Corp. (REIT) $41.74 B
Iron Mountain Incorporated $26.90 B
SBA Communications Corporation $20.65 B
Weyerhaeuser Company $19.72 B
Sector: Real Estate
Company Market Cap (USD)
Prologis, Inc. $104.90 B
Equinix, Inc. (REIT) $71.61 B
Welltower Inc. $63.10 B
Simon Property Group, Inc. $55.57 B
Public Storage $50.49 B

Yearly evolution of American Tower market cap

Date Market Cap YoY Change
Jan. 1, 2024 $100.44 B 0.49%
Jan. 1, 2023 $99.95 B -12.92%
Jan. 1, 2022 $114.78 B 10.62%
Jan. 1, 2021 $103.77 B -1.89%
Jan. 1, 2020 $105.77 B 34.08%
Jan. 1, 2019 $78.88 B 17.02%
Jan. 1, 2018 $67.41 B 42.71%
Jan. 1, 2017 $47.24 B 9.71%
Jan. 1, 2016 $43.06 B -2.69%
Jan. 1, 2015 $44.25 B 19.87%
Jan. 1, 2014 $36.91 B 6.21%
Jan. 1, 2013 $34.75 B 19.90%
Jan. 1, 2012 $28.99 B 24.87%
Jan. 1, 2011 $23.21 B 19.81%
Jan. 1, 2010 $19.37 B 39.91%
Jan. 1, 2009 $13.85 B -18.94%
Jan. 1, 2008 $17.08 B -6.03%
Jan. 1, 2007 $18.18 B 28.73%
Jan. 1, 2006 $14.12 B 70.75%
Jan. 1, 2005 $8.27 B 64.88%
Jan. 1, 2004 $5.02 B 116.34%
Jan. 1, 2003 $2.32 B -1.55%
Jan. 1, 2002 $2.36 B -85.75%
Jan. 1, 2001 $16.52 B

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

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Company Description

American Tower Corporation, also known as ATC, is a real estate investment trust specialized in wireless communications infrastructure. It owns and operates more than 180,000 communications sites, with more than 40,000 in the United States and about 140,000 properties in Latin America, Europe, and Africa. American Tower leases space on wireless communications towers and provides in-building services, distributed antenna systems, and managed rooftops services.

business American Tower Company Profile

American Tower Categories

United States languages Real Estate languages REIT—Specialty
United States Real Estate United States REIT—Specialty

Stocks & Indices

American Tower Corporation (REIT) has the following listings and related stock indices.


Stock: NYSE: AMT

Stock: FSX: A0T

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.