AMT (American Tower) 1-Year Sharpe Ratio: -1.49 (As of Jul. 16, 2026)

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AMT American Tower Corp AMT
77 GF Score
Price $168.63
GF Value $207.44
Valuation Modestly Undervalued
! 5 Warning Signs
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What is American Tower 1-Year Sharpe Ratio?

American Tower AMT -0.12% 77 1-Year Sharpe Ratio is -1.49 as of Jul. 16, 2026. GuruFocus rates AMT with a GF Score™ of 77/100 and a GF Value™ of $207.44 (Modestly Undervalued). The stock has 5 warning signs investors should review.

The 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk over the past year. As of today (2026-07-16), American Tower's 1-Year Sharpe Ratio is -1.49.

American Tower  (NYSE:AMT) 1-Year Sharpe Ratio Explanation

The 1-Year Sharpe Ratio inidicates the risk-adjusted return of an investment over the past year. It is calculated as the annualized result of the average monthly excess return divided by its standard deviation over the past year. The monthly excess return is the monthly investment return minus the monthly risk-free rate (typically the 10-year Treasury Constant Maturity Rate). If the risk-free rate for a specific region is not available, U.S. data is used by default.

The greater a portfolio's Sharpe Ratio, the better its risk-adjusted performance. A negative Sharpe Ratio means the risk-free rate is greater than the portfolio’s historical or projected return, or else the portfolio's return is expected to be negative.

American Tower 1-Year Sharpe Ratio Related Terms

AMT vs DLR, EQIX, IRM: 1-Year Sharpe Ratio Comparison

For the REIT - Specialty subindustry, American Tower's 1-Year Sharpe Ratio, along with its competitors' market caps and 1-Year Sharpe 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 1-Year Sharpe Ratio vs REITs Industry

For the REITs industry and Real Estate sector, American Tower's 1-Year Sharpe Ratio distribution charts can be found below:

* The bar in red indicates where American Tower's 1-Year Sharpe Ratio falls into.


AMT
77GF Score
American Tower Corp AMT
1-Year Sharpe Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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American Tower 1-Year Sharpe Ratio Calculation

The 1-Year Sharpe Ratio measures the performance of an investment such as a stock or portfolio compared to a risk-free asset. A stock / portfolio's 1-Year Sharpe Ratio can be calculated by dividing the difference between the one-year returns of the investment and the risk-free rate, by the standard deviation of the investment returns over one year.

Frequently Asked Questions Learn more about 1-Year Sharpe Ratio →
What does a 1-Year Sharpe Ratio of -1.49 mean?
American Tower (AMT) has a 1-Year Sharpe Ratio of -1.49 as of Jul. 16, 2026. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for American Tower and its competitors.
Is American Tower's 1-Year Sharpe Ratio too high?
American Tower's current 1-Year Sharpe Ratio is -1.49. Overall, American Tower has a GF Score™ of 77/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does American Tower's 1-Year Sharpe Ratio compare to DLR and EQIX?
American Tower's 1-Year Sharpe Ratio of -1.49 can be compared against companies in the REITs industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 1-Year Sharpe Ratio for a REITs company?
A good 1-Year Sharpe Ratio depends on the REITs industry context. However, 1-Year Sharpe Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high 1-Year Sharpe Ratio mean?
A high 1-Year Sharpe Ratio can signal that a stock is expensive relative to its fundamentals. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for American Tower and its competitors. American Tower's current 1-Year Sharpe Ratio is -1.49. 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 (AMT) is currently considered Modestly Undervalued. The stock's GF Value™ is $207.44, compared to a current price of $168.63 — trading 18.7% below its estimated fair value. The current 1-Year Sharpe Ratio is -1.49. American Tower's overall GF Score™ is 77/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 1-Year Sharpe Ratio calculated?
1-Year Sharpe Ratio is calculated from a company's financial statements. For American Tower (AMT), the current 1-Year Sharpe Ratio is -1.49 as of Jul. 16, 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 (AMT) Overvalued in 2026?

Based on GuruFocus' analysis, American Tower stock appears to be undervalued. The current stock price of $168.63 is trading 18.7% below its estimated GF Value™ of $207.44. GuruFocus considers American Tower to be Modestly Undervalued.

Key valuation signals for AMT:

  • 1-Year Sharpe Ratio: -1.49
  • GF Value™: $207.44 vs. price of $168.63 (18.7% below fair value)
  • GF Score™: 77/100 with 5 warning signs

No single metric tells the full story. See the AMT stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

American Tower Business Description

Industry Real EstateREITs
Address 222 Berkeley Street, 7th Floor, Boston, MA, USA, 02116
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.
77GF Score

Get the complete analysis for AMT

1-Year Sharpe Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$168.63
Price
$207.44
GF Value