American TowerMEX:AMT -2.70%57 PEG Ratio is 4.13 as of Jul. 01, 2026, which is 6% below its 10-year median of 4.40. GuruFocus rates MEX:AMT with a GF Score™ of 57/100 and a GF Value™ of MXN3,658.64 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 278 REITs companies, American Tower ranks worse than 57.19% on this metric.
* The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.
The historical rank and industry rank for American Tower's PEG Ratio or its related term are showing as below:
MEX:AMT'
s PEG Ratio Range Over the Past 10 Years
Min: 2.55 Med: 4.4 Max: 10.24
Current: 4.28
During the past 13 years, American Tower's highest PEG Ratio was 10.24. The lowest was 2.55. And the median was 4.40.
MEX:AMT's PEG Ratio is ranked worse than 57.19% of 278
companies
in the REITs industry
Industry Median: 3.4
vs MEX:AMT: 4.28
Peter Lynch thinks a company with a P/E ratio equal to its growth rate is fairly valued.
American Tower (MEX:AMT) PEG Ratio Explanation
To compare stocks with different growth rates, Peter Lynch invented a ratio called PEG Ratio. PEG Ratio is defined as the P/E ratio divided by the growth ratio. He thinks a company with a P/E ratio equal to its growth rate is fairly valued. Still he said he would rather buy a company growing 20% a year with a P/E of 20, instead of a company growing 10% a year with a P/E of 10.
American Tower PEG Ratio Related Terms
American Tower PEG Ratio Historical Data
* Premium members only.
The historical data trend for American Tower's PEG Ratio can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the REIT - Specialty subindustry, American Tower's PEG Ratio, along with its competitors' market caps and PEG Ratio data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
American Tower PEG Ratio vs REITs Industry
For the REITs industry and Real Estate sector, American Tower's PEG Ratio distribution charts can be found below:
* The bar in red indicates where American Tower's PEG Ratio falls into.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
* Note: The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.
American Tower (MEX:AMT) has a PEG Ratio of 4.13 as of Jul. 01, 2026. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on American Tower and its competitors. This is near median its historical median of 4.40. Over the past decade, American Tower's PEG Ratio has ranged from 2.55 to 10.24. According to the industry distribution chart, American Tower ranks #159 out of 278 companies in the REITs industry, placing it in the top 57.2%.
Is American Tower's PEG Ratio too high?
American Tower's current PEG Ratio of 4.13 is near median its 10-year median of 4.40. Over the past 10 years, this metric has ranged from a low of 2.55 to a high of 10.24. The REITs industry median PEG Ratio is 3.40. American Tower's value of 4.13 is 21.5% above this industry median. Based on the distribution chart, American Tower ranks #159 out of 278 companies in the REITs industry, which is below the industry midpoint. Overall, American Tower has a GF Score™ of 57/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does American Tower's PEG Ratio compare to DLR and EQIX?
According to the REITs industry distribution chart, American Tower ranks #159 out of 278 companies for PEG Ratio. This places American Tower in the lower half of its industry. The industry median PEG Ratio is 3.40. American Tower's value of 4.13 is 21.5% above this benchmark. Historically, American Tower's own PEG Ratio has ranged from 2.55 to 10.24 over the past decade. While the company's 10-year median is 4.40 vs. the industry median of 3.40, American Tower has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PEG Ratio for a REITs company?
The median PEG Ratio among REITs companies is 3.40, based on 278 companies in the industry. Companies in the top quartile (top 25%) have a PEG Ratio significantly above this median, while those in the bottom quartile fall well below. However, PEG Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. American Tower's current PEG Ratio of 4.13 is 21.5% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high PEG Ratio mean?
A high PEG Ratio can signal that a stock is expensive relative to its fundamentals. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on American Tower and its competitors. For the REITs industry, the median PEG Ratio is 3.40 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. American Tower's current PEG Ratio is 4.13, which is near median its own 10-year median of 4.40. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is American Tower stock overvalued right now?
Based on GuruFocus' analysis, American Tower (MEX:AMT) is currently considered Modestly Undervalued. The stock's GF Value™ is MXN3,658.64, compared to a current price of MXN2,887.13 — trading 21.1% below its estimated fair value. The current PEG Ratio is 4.13, which is near median its 10-year median of 4.40 and 21.5% above the REITs industry median of 3.40. American Tower's overall GF Score™ is 57/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PEG Ratio calculated?
PEG Ratio is calculated from a company's financial statements. For American Tower (MEX:AMT), the current PEG Ratio is 4.13 as of Jul. 01, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is American Tower (MEX:AMT) Overvalued in 2026?
Based on GuruFocus' analysis, American Tower stock appears to be undervalued.
The current stock price of MXN2,887.13 is trading 21.1% below its estimated GF Value™ of MXN3,658.64.
GuruFocus considers American Tower to be Modestly Undervalued.
Key valuation signals for MEX:AMT:
PEG Ratio: 4.13 (near median its 10-year median of 4.40)
GF Value™: MXN3,658.64 vs. price of MXN2,887.13 (21.1% below fair value)
Industry Position: 21.5% above the REITs median (#159 of 278)
No single metric tells the full story. See the MEX:AMT stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
American Tower owns and operates about 150,000 wireless towers throughout the US, Asia, Latin America, Europe, and Africa. It also owns and/or operates 30 data centers in 11 US markets through its CoreSite segment. The company's customer base in the tower business is very concentrated, with most revenue in each market generated by the top three or four mobile carriers. The company operates 42,000 towers in the US, which accounted for about half of total revenue in 2025. Outside the US, American Tower operates about 47,000 towers in Latin America (dominated by Brazil), 33,000 towers in Europe, and 28,000 towers in Africa. American Tower operates as a REIT.
57GF Score
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