With a market capitalization (market cap) of $80.3B — a measure of how much the company is worth — American Tower Corporation is the 217th most valuable company in Real Estate as of August 19, 2026. Shares trade at $172.33, up +0.06% on the day.
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American Tower Corporation is one of the largest global real estate investment trusts. It is a leading independent owner, operator and developer of multitenant communications real estate. The Company's primary business is the leasing of space on communications sites to wireless service providers, radio and television broadcast companies, wireless data providers, government agencies and municipalities and tenants in a few other industries. The Company refers to this business, inclusive of its data center business discussed below, as its property operations. Additionally, the Company offers tower-related services in the United States, which the Company refers to as its services operations. These services include site application, zoning and permitting, structural and mount analyses, and construction management services, together with program management offerings that support customer deployment needs from project scoping through construction. The Company's services operations primarily support the Company's site leasing business, including through the addition of new tenants and equipment on its sites. The Company's customers include its tenants, licensees and other payers. American Tower Corporation was incorporated in 1995 in Delaware and is based in Massachusetts, Boston.
Visit websiteAs of August 19, 2026, American Tower Corporation (AMT) is worth $80.3B — this is its market capitalization, the total value of all its outstanding shares.
American Tower Corporation’s market cap is $80.3B, which ranks it #217 among the most valuable companies in the Real Estate sector tracked on MarketCapLens.
American Tower Corporation (AMT) shares trade at $172.33, up 0.06% on the day, as of August 19, 2026.
Fundamentals are annual. Figures labeled with their fiscal year.
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American Tower Corporation trades at a price-to-earnings (P/E) ratio of 31.9, based on its latest share price and annual earnings per share.