With a market cap of $88.2 billion, American Tower Corporation (AMT) is a leading global real estate investment trust (REIT) specializing in wireless and broadcast communications infrastructure. Headquartered in Boston, Massachusetts, American Tower owns, operates, and develops thousands of communications sites across the U.S. and internationally.
Shares of American Tower have underperformed the broader market over the past 52 weeks. AMT has declined 2.4% over this time frame, while the broader S&P 500 Index ($SPX) has rallied 20.7%. However, in 2025, AMT is up 3.5% compared to SPX’s 3.1% gain on a YTD basis.
