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American Tower Corporation (AMT)
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The market capitalization for American Tower Corporation (AMT) is $89.65 Billion, making it a Large Cap company. Market cap is calculated by multiplying the current stock price by the total number of shares outstanding.

Market Capitalization

$89.65B

$89.65 Billion

Calculation

Stock Price
$192.42
Shares Outstanding
465.89M
Market Cap
$89.65B

Market Cap = Price × Shares Outstanding

Size Classification

Large Cap

$10B - $1T

Companies with market capitalization between $10 billion and $1 trillion.

Market Cap Size Scale

Micro Cap

<$250M

Small Cap

$250M-$2B

Mid Cap

$2B-$10B

Large Cap

$10B-$1T

Mega Cap

>$1T

AMT Market Cap: $89.65 Billion

Related Valuation Metrics

Key Statistics

Market Cap$89.65 Billion
Stock Price$192.42
Shares Outstanding465.89M
Size CategoryLarge Cap
P/E Ratio31.09
P/B Ratio24.59
Data as of Thursday, June 11, 2026

About American Tower Corporation

American Tower Corporation, a prominent global Real Estate Investment Trust (REIT), stands as a premier independent entity specializing in the ownership, operation, and development of shared telecommunications infrastructure. The company manages an extensive portfolio of approximately 219,000 communication sites worldwide. For additional details, including earnings materials and investor presentations, please visit their investor relations website at www.americantower.com.

Boston, MA
4,691 employees
Real Estate / REIT - Specialty
Sector
Real Estate
Industry
REIT - Specialty
CEO
Steven O. Vondran