Current
$86.72B
5-Year Average
$99.53B
All-Time High
$137.34B
All-Time Low
$138.71M
Market cap daily chart for American Tower (AMT)
Jun 16, 2021 – Jun 15, 2026 · 1,255 trading days
Market Cap growth chart for American Tower (AMT) from 1998 to 2026
Latest: +5.3%
Market Cap history table for American Tower (AMT) from 1998 to 2026
| 2026 | $86.72B | +5.3% | +$4.35B | ||
| 2025 | $82.37B | -4.1% | −$3.49B | ||
| 2024 | $85.86B | -14.9% | −$14.99B | ||
| 2023 | $100.85B | +2.9% | +$2.81B | ||
| 2022 | $98.04B | -26.1% | −$34.55B | ||
| 2021 | $132.59B | +32.4% | +$32.46B | ||
| 2020 | $100.13B | -2.2% | −$2.26B | ||
| 2019 | $102.39B | +46.1% | +$32.32B | ||
| 2018 | $70.07B | +13.8% | +$8.48B | ||
| 2017 | $61.59B | +35.8% | +$16.22B | ||
| 2016 | $45.37B | +10.6% | +$4.36B | ||
| 2015 | $41.01B | +3.7% | +$1.46B | ||
| 2014 | $39.55B | +24.1% | +$7.69B | ||
| 2013 | $31.86B | +3.3% | +$1.01B | ||
| 2012 | $30.85B | +28.5% | +$6.84B | ||
| 2011 | $24.02B | +15.1% | +$3.15B | ||
| 2010 | $20.87B | +18.7% | +$3.28B | ||
| 2009 | $17.58B | +43.4% | +$5.32B | ||
| 2008 | $12.27B | -32.4% | −$5.88B | ||
| 2007 | $18.15B | +11.6% | +$1.89B | ||
| 2006 | $16.26B | +98.4% | +$8.06B | ||
| 2005 | $8.20B | +98.6% | +$4.07B | ||
| 2004 | $4.13B | +83.3% | +$1.88B | ||
| 2003 | $2.25B | +226.3% | +$1.56B | ||
| 2002 | $689.95M | -62.0% | −$1.12B | ||
| 2001 | $1.81B | -71.6% | −$4.58B | ||
| 2000 | $6.39B | +39.7% | +$1.81B | ||
| 1999 | $4.58B | +94.0% | +$2.22B | ||
| 1998 | $2.36B | — | — |
- 2026$86.72B+5.3%
- 2025$82.37B-4.1%
- 2024$85.86B-14.9%
- 2023$100.85B+2.9%
- 2022$98.04B-26.1%
- 2021$132.59B+32.4%
- 2020$100.13B-2.2%
- 2019$102.39B+46.1%
- 2018$70.07B+13.8%
- 2017$61.59B+35.8%
- 2016$45.37B+10.6%
- 2015$41.01B+3.7%
- 2014$39.55B+24.1%
- 2013$31.86B+3.3%
- 2012$30.85B+28.5%
- 2011$24.02B+15.1%
- 2010$20.87B+18.7%
- 2009$17.58B+43.4%
- 2008$12.27B-32.4%
- 2007$18.15B+11.6%
- 2006$16.26B+98.4%
- 2005$8.20B+98.6%
- 2004$4.13B+83.3%
- 2003$2.25B+226.3%
- 2002$689.95M-62.0%
- 2001$1.81B-71.6%
- 2000$6.39B+39.7%
- 1999$4.58B+94.0%
- 1998$2.36B—
Market Cap values are taken from American Tower's reported income statements (share counts) and end-of-day prices (quarterly 10-Q and annual 10-K filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the filing date. YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
About Market Cap at American Tower (AMT)
According to American Tower's latest reported financial statements, the company's latest reported market cap is $80.57B. Market capitalization is the total dollar value of all outstanding shares — shares outstanding × stock price — and the standard measure of a company's equity value. On this page, historical market cap snaps filing-period share counts to closing prices on or before each statement date (not intraday tick data).
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
As of the 2026 fiscal year, American Tower (AMT) reported market cap of $86.72B – grew 5.3% year-over-year.
American Tower market cap compound annual growth for the 2021–2026 (5 years) window is -8.1%, with a net decline across the window.
American Tower market cap peaked at $132.59B in 2021; the latest annual figure is $86.72B in 2026 (34.6% below peak).
The record annual market cap stands at $132.59B, reached in 2021; the historical low of $689.95M was recorded in 2002.
American Tower Market Cap by Year
American Tower Market Cap 2026: $86.72B
American Tower market cap in 2026 was $86.72B, grew 5.3% from 2025.
American Tower Market Cap 2025: $82.37B
2025's market cap for American Tower came in at $82.37B, edged down 4.1% below 2024.
American Tower Market Cap 2024: $85.86B
American Tower posted market cap of $85.86B in 2024, declined 14.9% below 2023.
American Tower Market Cap 2023: $100.85B
In 2023, American Tower reported market cap of $100.85B, edged up 2.9% from 2022.
American Tower Market Cap 2022: $98.04B
American Tower market cap in 2022 was $98.04B.
See more financial history for American Tower (AMT).
Sector peers by Market Cap
Real Estate peers of American Tower (AMT), ranked by their latest market cap
| $150.23B | |
| $138.45B | |
| $104.97B | |
| $69.93B | |
| $64.97B | |
| $57.95B | |
| $56.35B | |
| $40.58B |
- $150.23B
- $138.45B
- $104.97B
- $69.93B
- $64.97B
- $57.95B
- $56.35B
- $40.58B
Frequently asked questions
American Tower (AMT) Key Financials
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