American Tower (AMT) Market Capitalization (2009 - 2026)

American Tower has disclosed Market Capitalization across 18 years of filings, most recently posting $76.2 billion for Q2 2026.

• In Q2 2026, Market Capitalization fell 26.35% year-over-year to $76.2 billion; the TTM figure through Jun 2026 stood at $76.2 billion (down 26.35% YoY), while the FY2025 annual figure was $81.9 billion, down 4.49% from the prior year.
• Market Capitalization came in at $76.2 billion for Q2 2026 at American Tower, down from $80.4 billion in the prior quarter.
• In the past five years, Market Capitalization ranged from a high of $119.0 billion in Q2 2022 to a low of $76.2 billion in Q2 2026.
• Average Market Capitalization over 5 years is $94.8 billion, with a median of $93.7 billion recorded in 2023.
• Year-over-year, Market Capitalization jumped 41.76% in 2024 and decreased 26.35% in 2026.
• Over 5 years, Market Capitalization stood at $98.6 billion in 2022, then increased by 2.05% to $100.7 billion in 2023, then dropped by 14.84% to $85.7 billion in 2024, then declined by 4.49% to $81.9 billion in 2025, then declined by 6.91% to $76.2 billion in 2026.
• Per Business Quant data, the three most recent Market Capitalization figures were $76.2 billion in Q2 2026, $80.4 billion in Q1 2026, and $81.9 billion in Q4 2025.