American Tower (MIL:1AMT) Cyclically Adjusted FCF per Share: €6.50 (As of Mar. 2026)


MIL:1AMT American Tower Corp MIL:1AMT
53 GF Score
Price €155.00
GF Value €194.75
Valuation Modestly Undervalued
! 5 Warning Signs
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What is American Tower Cyclically Adjusted FCF per Share?

American Tower MIL:1AMT 53 Cyclically Adjusted FCF per Share is €6.50 as of Mar. 2026. GuruFocus rates MIL:1AMT with a GF Score™ of 53/100 and a GF Value™ of €194.75 (Modestly Undervalued). The stock has 5 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted FCF per Share and the Cyclically Adjusted Price-to-FCF. The Cyclically Adjusted FCF per Share is the average of the inflation adjusted Free Cash Flow per Share of a company over the past 10 years.

American Tower's adjusted free cash flow per share for the three months ended in Mar. 2026 was €1.762. Add all the adjusted free cash flow per share for the past 10 years together and divide the count will get our Cyclically Adjusted FCF per Share, which is €6.50 for the trailing ten years ended in Mar. 2026.

During the past 12 months, American Tower's average Cyclically Adjusted FCF Growth Rate was 8.00% per year. During the past 3 years, the average Cyclically Adjusted FCF Growth Rate was 8.90% per year. During the past 5 years, the average Cyclically Adjusted FCF Growth Rate was 10.60% per year. During the past 10 years, the average Cyclically Adjusted FCF Growth Rate was 14.10% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted FCF Growth Rate using Cyclically Adjusted FCF per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted FCF Growth Rate of American Tower was 63.60% per year. The lowest was 8.90% per year. And the median was 16.10% per year.

As of today (2026-07-09), American Tower's current stock price is €155.00. American Tower's Cyclically Adjusted FCF per Share for the quarter that ended in Mar. 2026 was €6.50. American Tower's Cyclically Adjusted Price-to-FCF of today is 23.85.

During the past 13 years, the highest Cyclically Adjusted Price-to-FCF of American Tower was 67.58. The lowest was 21.92. And the median was 47.89.


American Tower  (MIL:1AMT) Cyclically Adjusted FCF per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted FCF per Share may underestimate the company's free cash flow. Cyclically Adjusted Price-to-FCF can seem to be too high even the actual Price-to-Free-Cash-Flow is low.

For the Cyclically Adjusted Price-to-FCF, the free cash flow per share of the past 10 years are inflation-adjusted and averaged. The result is used for P/FCF calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted Price-to-FCF is also called CAPFCF Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Price-to-FCF. The Cyclically Adjusted FCF per Share is the average of the inflation adjusted free cash flow per share of a company over the past 10 years.

American Tower's Cyclically Adjusted Price-to-FCF of today is calculated as

Cyclically Adjusted Price-to-FCF=Share Price/Cyclically Adjusted FCF per Share
=155.00/6.50
=23.85

* 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.

During the past 13 years, the highest Cyclically Adjusted Price-to-FCF of American Tower was 67.58. The lowest was 21.92. And the median was 47.89.


Be Aware

Cyclically Adjusted Price-to-FCF works better for cyclical companies. It gives you a better idea on the company's real free cash flow value.


American Tower Cyclically Adjusted FCF per Share Related Terms


American Tower Cyclically Adjusted FCF per Share Historical Data

* Premium members only.

The historical data trend for American Tower's Cyclically Adjusted FCF per Share 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.

American Tower Cyclically Adjusted FCF per Share Chart

American Tower Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted FCF per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 5.62 6.50 6.23

American Tower Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted FCF per Share Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 6.36 6.11 6.32 6.23 6.50

MIL:1AMT vs DLR, EQIX, IRM: Cyclically Adjusted FCF per Share Comparison

For the REIT - Specialty subindustry, American Tower's Cyclically Adjusted Price-to-FCF, along with its competitors' market caps and Cyclically Adjusted Price-to-FCF 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 Cyclically Adjusted Price-to-FCF vs REITs Industry

For the REITs industry and Real Estate sector, American Tower's Cyclically Adjusted Price-to-FCF distribution charts can be found below:

* The bar in red indicates where American Tower's Cyclically Adjusted Price-to-FCF falls into.


MIL:1AMT
53GF Score
American Tower Corp MIL:1AMT
Cyclically Adjusted FCF per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

American Tower Cyclically Adjusted FCF per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted FCF per Share and the Cyclically Adjusted Price-to-FCF. The Cyclically Adjusted FCF per Share is the average of the inflation adjusted Free Cash Flow per Share of a company over the past 10 years.

What is Cyclically Adjusted FCF per Share? How do we calculate Cyclically Adjusted FCF per Share?

Cyclically Adjusted FCF per Share is the average of the inflation adjusted Free Cash Flow per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted FCF per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the free cash flow per share from 2001 through 2010.

We adjusted the 2001 free cash flow per share data with the total inflation from 2001 through 2010 to the equivalent free cash flow in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's free cash flow is $1 a share in 2001, then the 2001's equivalent free cash flow in 2010 is $1.4 a share. If Wal-Mart's free cash flow is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 free cash flow in 2010 is $1.35. So on and so forth, you get the equivalent free cash flow per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted FCF per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

For example, American Tower's adjusted Free Cash Flow per Share data for the three months ended in Mar. 2026 was:

Adj_FreeCashFlowPerShare= Free Cash Flow per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=1.762/330.2130*330.2130
=1.762

Current CPI (Mar. 2026) = 330.2130.

American Tower Quarterly Data

Free Cash Flow per Share CPI Adj_FreeCashFlowPerShare
201606 1.209 241.018 1.656
201609 1.060 241.428 1.450
201612 1.137 241.432 1.555
201703 1.109 243.801 1.502
201706 1.222 244.955 1.647
201709 0.931 246.819 1.246
201712 1.055 246.524 1.413
201803 1.097 249.554 1.452
201806 1.375 251.989 1.802
201809 1.096 252.439 1.434
201812 1.899 251.233 2.496
201903 1.123 254.202 1.459
201906 1.576 256.143 2.032
201909 1.379 256.759 1.774
201912 1.467 256.974 1.885
202003 1.189 258.115 1.521
202006 1.550 257.797 1.985
202009 1.363 260.280 1.729
202012 1.417 260.474 1.796
202103 1.445 264.877 1.801
202106 1.237 271.696 1.503
202109 3.315 274.310 3.991
202112 0.424 278.802 0.502
202203 0.551 287.504 0.633
202206 1.122 296.311 1.250
202209 1.024 296.808 1.139
202212 1.065 296.797 1.185
202303 1.218 301.836 1.333
202306 1.558 305.109 1.686
202309 1.825 307.789 1.958
202312 1.211 306.746 1.304
202403 1.745 312.332 1.845
202406 2.012 314.175 2.115
202409 2.010 315.301 2.105
202412 1.540 315.605 1.611
202503 1.903 319.799 1.965
202506 1.807 322.561 1.850
202509 1.806 324.800 1.836
202512 1.546 324.054 1.575
202603 1.762 330.213 1.762

Add all the adjusted free cash flow per share together and divide 10 will get our Cyclically Adjusted FCF per Share.

What does a Cyclically Adjusted FCF per Share of €6.50 mean?
American Tower (MIL:1AMT) has a Cyclically Adjusted FCF per Share of €6.50 as of Mar. 2026. Cyclically Adjusted FCF per Share represents the company's inflation-adjusted FCF per share over a 10-year period. View historical data on American Tower and its competitors.
Is American Tower's Cyclically Adjusted FCF per Share too high?
American Tower's current Cyclically Adjusted FCF per Share is €6.50. Overall, American Tower has a GF Score™ of 53/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does American Tower's Cyclically Adjusted FCF per Share compare to DLR and EQIX?
American Tower's Cyclically Adjusted FCF per Share of €6.50 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 Cyclically Adjusted FCF per Share for a REITs company?
A good Cyclically Adjusted FCF per Share depends on the REITs industry context. However, Cyclically Adjusted FCF per Share 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 Cyclically Adjusted FCF per Share mean?
A high Cyclically Adjusted FCF per Share can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted FCF per Share represents the company's inflation-adjusted FCF per share over a 10-year period. View historical data on American Tower and its competitors. American Tower's current Cyclically Adjusted FCF per Share is €6.50. 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 (MIL:1AMT) is currently considered Modestly Undervalued. The stock's GF Value™ is €194.75, compared to a current price of €155.00 — trading 20.4% below its estimated fair value. The current Cyclically Adjusted FCF per Share is €6.50. American Tower's overall GF Score™ is 53/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted FCF per Share calculated?
Cyclically Adjusted FCF per Share is calculated from a company's financial statements. For American Tower (MIL:1AMT), the current Cyclically Adjusted FCF per Share is €6.50 as of Mar. 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 (MIL:1AMT) Overvalued in 2026?

Based on GuruFocus' analysis, American Tower stock appears to be undervalued. The current stock price of €155.00 is trading 20.4% below its estimated GF Value™ of €194.75. GuruFocus considers American Tower to be Modestly Undervalued.

Key valuation signals for MIL:1AMT:

  • Cyclically Adjusted FCF per Share: €6.50
  • GF Value™: €194.75 vs. price of €155.00 (20.4% below fair value)
  • GF Score™: 53/100 with 5 warning signs

No single metric tells the full story. See the MIL:1AMT 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.
53GF Score

Get the complete analysis for MIL:1AMT

Cyclically Adjusted FCF per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€155.00
Price
€194.75
GF Value