American Tower Corp. (AMT)
188.97
+7.40
(+4.08%)
USD |
NYSE |
Oct 23, 16:00
189.34
+0.37
(+0.20%)
After-Hours: 20:00
American Tower Market Cap : 88.05B for Oct. 23, 2026
Market Cap Chart
Historical Market Cap Data
| Date | Value |
|---|---|
| October 23, 2026 | 88.05B |
| October 22, 2026 | 84.60B |
| October 21, 2026 | 82.77B |
| October 20, 2026 | 85.53B |
| October 19, 2026 | 85.28B |
| October 16, 2026 | 86.33B |
| October 15, 2026 | 84.51B |
| October 14, 2026 | 83.59B |
| October 13, 2026 | 83.61B |
| October 12, 2026 | 85.07B |
| October 09, 2026 | 84.92B |
| October 08, 2026 | 77.69B |
| October 07, 2026 | 77.43B |
| October 06, 2026 | 76.78B |
| October 05, 2026 | 75.61B |
| October 02, 2026 | 75.58B |
| October 01, 2026 | 75.05B |
| September 30, 2026 | 76.27B |
| September 29, 2026 | 77.98B |
| September 28, 2026 | 78.28B |
| September 25, 2026 | 78.76B |
| September 24, 2026 | 77.94B |
| September 23, 2026 | 79.58B |
| September 22, 2026 | 81.66B |
| September 21, 2026 | 81.36B |
| Date | Value |
|---|---|
| September 18, 2026 | 81.07B |
| September 17, 2026 | 81.81B |
| September 16, 2026 | 82.19B |
| September 15, 2026 | 82.81B |
| September 14, 2026 | 82.45B |
| September 11, 2026 | 82.87B |
| September 10, 2026 | 80.60B |
| September 09, 2026 | 81.74B |
| September 08, 2026 | 81.88B |
| September 04, 2026 | 81.94B |
| September 03, 2026 | 82.82B |
| September 02, 2026 | 80.57B |
| September 01, 2026 | 82.02B |
| August 31, 2026 | 81.87B |
| August 28, 2026 | 82.12B |
| August 27, 2026 | 81.15B |
| August 26, 2026 | 81.88B |
| August 25, 2026 | 83.21B |
| August 24, 2026 | 83.12B |
| August 21, 2026 | 81.92B |
| August 20, 2026 | 81.88B |
| August 19, 2026 | 81.31B |
| August 18, 2026 | 80.30B |
| August 17, 2026 | 80.25B |
| August 14, 2026 | 81.81B |
Market Capitalization Definition
Market Capitalization measures the total value of a company based on their stock price multiplied by the shares outstanding. This metric is important because it gives you an idea of the size of a company, and how the size has changed over time. When studying companies from a relative basis, it would make sense to compare companies that have a similar market capitalization because factors like market share, economies of scale, and business models would also be similar.
Market Cap Range, Past 5 Years
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Median
Market Cap Benchmarks
| Crown Castle, Inc. | 37.57B |
| Digital Realty Trust, Inc. | 63.78B |
| SBA Communications Corp. | 19.60B |
| Lamar Advertising Co. | 15.74B |
| Public Storage | 54.42B |
Market Cap Related Metrics
| PE Ratio | 25.98 |
| PS Ratio | 8.077 |
| PEG Ratio | 0.1584 |
| Price to Book Value | 23.67 |
| Price to Free Cash Flow | 22.32 |
| Price | 188.97 |
| Earnings Yield | 3.85% |
| PEGY Ratio | 0.1549 |
| Operating PE Ratio | 17.88 |
| Normalized PE Ratio | 25.97 |