American Tower Corporation (AMT)

NYSE: AMT · Real-Time Price · USD

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175.57

-1.15 (-0.65%)

At close: Dec 31, 2025, 4:00 PM EST

175.79

+0.22 (0.13%)

After-hours: Dec 31, 2025, 7:59 PM EST

American Tower Market Cap

American Tower has a market cap or net worth of $82.19 billion as of December 31, 2025. Its market cap has decreased by -10.79% in one year.

Market Cap

82.19B

Enterprise Value

125.25B

1-Year Change

-10.79%

Ranking

#184

Market Cap Chart

Since December 1, 1998, American Tower's market cap has increased from $2.58B to $82.19B, an increase of 3,087.86%. That is a compound annual growth rate of 13.63%.

Market Cap History

Date	Market Cap	% Change
Dec 31, 2025	82.19B	-4.10%
Dec 31, 2024	85.71B	-14.84%
Dec 29, 2023	100.64B	2.02%
Dec 30, 2022	98.64B	-25.95%
Dec 31, 2021	133.21B	33.60%
Dec 31, 2020	99.71B	-2.05%
Dec 31, 2019	101.80B	46.09%
Dec 31, 2018	69.68B	13.89%
Dec 29, 2017	61.18B	36.01%
Dec 30, 2016	44.99B	9.55%
Dec 31, 2015	41.07B	4.78%
Dec 31, 2014	39.19B	24.41%
Dec 31, 2013	31.50B	3.11%
Dec 31, 2012	30.55B	29.52%
Dec 30, 2011	23.59B	14.45%
Dec 31, 2010	20.61B	18.80%
Dec 31, 2009	17.35B	49.14%
Dec 31, 2008	11.63B	-32.54%
Dec 31, 2007	17.24B	8.70%
Dec 29, 2006	15.86B	42.13%
Dec 30, 2005	11.16B	165.65%
Dec 31, 2004	4.20B	76.85%
Dec 31, 2003	2.38B	244.13%
Dec 31, 2002	690.30M	-62.64%
Dec 31, 2001	1.85B	-72.74%

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Market Capitalization

Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.

Formula: Market Cap = Stock Price * Shares Outstanding

Full Definition

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