ATN International (STU:ATP) Cyclically Adjusted Book per Share: €39.65 (As of Mar. 2026)


STU:ATP ATN International Inc STU:ATP
67 GF Score
Price €21.40
GF Value €21.05
! 6 Warning Signs
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What is ATN International Cyclically Adjusted Book per Share?

ATN International STU:ATP -6.96% 67 Cyclically Adjusted Book per Share is €39.65 as of Mar. 2026. GuruFocus rates STU:ATP with a GF Score™ of 67/100 and a GF Value™ of €21.05. The stock has 6 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 Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

ATN International's adjusted book value per share for the three months ended in Mar. 2026 was €24.384. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is €39.65 for the trailing ten years ended in Mar. 2026.

During the past 12 months, ATN International's average Cyclically Adjusted Book Growth Rate was -2.70% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -0.80% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 3.40% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 7.50% 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 Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of ATN International was 16.70% per year. The lowest was -0.80% per year. And the median was 9.95% per year.

As of today (2026-07-03), ATN International's current stock price is €21.40. ATN International's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was €39.65. ATN International's Cyclically Adjusted PB Ratio of today is 0.54.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of ATN International was 3.18. The lowest was 0.29. And the median was 1.11.


ATN International  (STU:ATP) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB 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 PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

ATN International's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=21.40/39.65
=0.54

* 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 PB Ratio of ATN International was 3.18. The lowest was 0.29. And the median was 1.11.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


ATN International Cyclically Adjusted Book per Share Related Terms


ATN International Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for ATN International's Cyclically Adjusted Book 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.

ATN International Cyclically Adjusted Book per Share Chart

ATN International Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 44.96 39.47

ATN International Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted Book 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 44.51 38.96 40.06 39.47 39.65

STU:ATP vs GOGO, CABO, GLTK: Cyclically Adjusted Book per Share Comparison

For the Telecom Services subindustry, ATN International's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB 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.


ATN International Cyclically Adjusted PB Ratio vs Telecommunication Services Industry

For the Telecommunication Services industry and Communication Services sector, ATN International's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where ATN International's Cyclically Adjusted PB Ratio falls into.


STU:ATP
67GF Score
ATN International Inc STU:ATP
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

ATN International Cyclically Adjusted Book 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 Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

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

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value 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 Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted Book 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, ATN International's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=24.384/330.2130*330.2130
=24.384

Current CPI (Mar. 2026) = 330.2130.

ATN International Quarterly Data

Book Value per Share CPI Adj_Book
201606 36.955 241.018 50.631
201609 37.083 241.428 50.720
201612 39.770 241.432 54.394
201703 39.243 243.801 53.152
201706 37.440 244.955 50.471
201709 33.767 246.819 45.176
201712 36.314 246.524 48.642
201803 34.533 249.554 45.695
201806 36.641 251.989 48.015
201809 37.464 252.439 49.006
201812 38.196 251.233 50.204
201903 38.236 254.202 49.669
201906 38.136 256.143 49.164
201909 39.051 256.759 50.223
201912 38.027 256.974 48.865
202003 37.706 258.115 48.238
202006 37.189 257.797 47.636
202009 35.666 260.280 45.249
202012 33.383 260.474 42.321
202103 33.906 264.877 42.269
202106 33.509 271.696 40.726
202109 33.745 274.310 40.622
202112 33.864 278.802 40.109
202203 34.305 287.504 39.401
202206 35.475 296.311 39.534
202209 37.449 296.808 41.664
202212 34.783 296.797 38.699
202303 33.560 301.836 36.715
202306 32.836 305.109 35.538
202309 32.945 307.789 35.345
202312 32.175 306.746 34.636
202403 31.454 312.332 33.255
202406 32.379 314.175 34.032
202409 29.258 315.301 30.642
202412 30.929 315.605 32.361
202503 28.773 319.799 29.710
202506 26.067 322.561 26.685
202509 25.258 324.800 25.679
202512 24.869 324.054 25.342
202603 24.384 330.213 24.384

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of €39.65 mean?
ATN International (STU:ATP) has a Cyclically Adjusted Book per Share of €39.65 as of Mar. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on ATN International and its competitors.
Is ATN International's Cyclically Adjusted Book per Share too high?
ATN International's current Cyclically Adjusted Book per Share is €39.65. Overall, ATN International has a GF Score™ of 67/100, reflecting its overall financial health beyond just this single metric.
How does ATN International's Cyclically Adjusted Book per Share compare to GOGO and CABO?
ATN International's Cyclically Adjusted Book per Share of €39.65 can be compared against companies in the Telecommunication Services 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 Book per Share for a Telecommunication Services company?
A good Cyclically Adjusted Book per Share depends on the Telecommunication Services industry context. However, Cyclically Adjusted Book 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 Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on ATN International and its competitors. ATN International's current Cyclically Adjusted Book per Share is €39.65. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is ATN International stock overvalued right now?
ATN International (STU:ATP) has a current Cyclically Adjusted Book per Share of €39.65. The stock's GF Value™ is €21.05, compared to a current price of €21.40 — trading 1.7% above its estimated fair value. The current Cyclically Adjusted Book per Share is €39.65. ATN International's overall GF Score™ is 67/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For ATN International (STU:ATP), the current Cyclically Adjusted Book per Share is €39.65 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 ATN International (STU:ATP) Overvalued in 2026?

Based on GuruFocus' analysis, ATN International stock appears to be overvalued. The current stock price of €21.40 is trading 1.7% above its estimated GF Value™ of €21.05.

Key valuation signals for STU:ATP:

  • Cyclically Adjusted Book per Share: €39.65
  • GF Value™: €21.05 vs. price of €21.40 (1.7% above fair value)
  • GF Score™: 67/100 with 6 warning signs

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


ATN International Business Description

Other Exchanges ATNI:USAATP:Germany
Address 500 Cummings Center, Suite 2450, Beverly, MA, USA, 01915
ATN International Inc is a telecommunications and utilities company. The company provides digital infrastructure and communications services with a focus on rural and remote markets in the United States, and internationally, including Bermuda and the Caribbean region. Its operating segments comprise U.S. Telecom and International Telecom. The company earns revenue from its International telecommunication segment.
67GF Score

Get the complete analysis for STU:ATP

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

€21.40
Price
€21.05
GF Value