American Tower Corp /Ma/ (AMT) Market Capitalization (2009 - 2026)
American Tower's Market Capitalization was $76.22 billion in Q2 2026, down 26.4% from $103.49 billion a year earlier and down 5.2% from the prior quarter.
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Analysis
American Tower Corp /Ma/ (AMT) Market Capitalization (2009 - 2026) Analysis & Trends
For FY2025, Market Capitalization at American Tower came in at $81.87 billion, down 4.5% from FY2024.
- Market Capitalization shows a five-year compound annual growth rate of -3.9% (FY2020 to FY2025).
- In earlier years, Market Capitalization was $85.72 billion in FY2024 (-14.8%), $100.66 billion in FY2023 (+2.0%), $98.65 billion in FY2022 (-26.0%) and $133.31 billion in FY2021 (+33.7%).
- The Q2 2026 figure marks the lowest quarterly Market Capitalization since Q4 2018.
- Compared with a year earlier, Market Capitalization has declined for four straight quarters, with an average decline of 2.2% over the last eight quarters.
- The best year-over-year quarter for Market Capitalization over five years was Q3 2024 (growth of 41.8%); the worst was Q2 2026 (a decline of 26.4%).
- Per Business Quant data, AMT's Market Capitalization in the three quarters before Q2 2026 was $80.42 billion (Q1 2026), $81.87 billion (Q4 2025) and $90.06 billion (Q3 2025).
Peer Set
Peer Comparison
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | 76.22 Bn |
| Mar 31, 2026 | 80.42 Bn |
| Dec 31, 2025 | 81.87 Bn |
| Sep 30, 2025 | 90.06 Bn |
| Jun 30, 2025 | 103.49 Bn |
| Mar 31, 2025 | 101.86 Bn |
| Dec 31, 2024 | 85.72 Bn |
| Sep 30, 2024 | 108.67 Bn |
| Jun 30, 2024 | 90.79 Bn |
| Mar 31, 2024 | 92.27 Bn |
| Dec 31, 2023 | 100.66 Bn |
| Sep 30, 2023 | 76.66 Bn |
| Jun 30, 2023 | 90.40 Bn |
| Mar 31, 2023 | 95.23 Bn |
| Dec 31, 2022 | 98.65 Bn |
| Sep 30, 2022 | 99.96 Bn |
| Jun 30, 2022 | 119.00 Bn |
| Mar 31, 2022 | 114.63 Bn |
| Dec 31, 2021 | 133.31 Bn |
| Sep 30, 2021 | 120.87 Bn |
API Access
American Tower Corp /Ma/ Market Capitalization API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=market-capitalization&ticker=AMT&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "market-capitalization", "ticker": "AMT", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=market-capitalization&ticker=AMT&period=max&api_key=YOUR_API_KEY");
const data = await res.json();