Telefonica (BSP:TLNC34) Cyclically Adjusted Book per Share: R$23.21 (As of Mar. 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

BSP:TLNC34 Telefonica SA BSP:TLNC34
63 GF Score
Price R$21.80
GF Value R$22.66
! 7 Warning Signs
View Full Analysis

What is Telefonica Cyclically Adjusted Book per Share?

Telefonica BSP:TLNC34 63 Cyclically Adjusted Book per Share is R$23.21 as of Mar. 2026. GuruFocus rates BSP:TLNC34 with a GF Score™ of 63/100 and a GF Value™ of R$22.66. The stock has 7 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.

Telefonica's adjusted book value per share for the three months ended in Mar. 2026 was R$15.604. 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 R$23.21 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Telefonica's average Cyclically Adjusted Book Growth Rate was -2.20% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -1.70% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 0.20% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was -1.00% 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 Telefonica was 5.70% per year. The lowest was -3.50% per year. And the median was 0.40% per year.

As of today (2026-07-22), Telefonica's current stock price is R$21.80. Telefonica's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was R$23.21. Telefonica's Cyclically Adjusted PB Ratio of today is 0.94.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Telefonica was 2.33. The lowest was 0.68. And the median was 1.02.


Telefonica  (BSP:TLNC34) 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.

Telefonica's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=21.80/23.21
=0.94

* 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 Telefonica was 2.33. The lowest was 0.68. And the median was 1.02.


Be Aware

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


Telefonica Cyclically Adjusted Book per Share Related Terms


Telefonica Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Telefonica'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.

Telefonica Cyclically Adjusted Book per Share Chart

Telefonica 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 25.54 24.04 23.08 26.25 25.86

Telefonica 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 25.38 26.21 25.00 25.86 23.21

BSP:TLNC34 vs TMUS, VZ, T: Cyclically Adjusted Book per Share Comparison

For the Telecom Services subindustry, Telefonica'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.


Telefonica Cyclically Adjusted PB Ratio vs Telecommunication Services Industry

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

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


BSP:TLNC34
63GF Score
Telefonica SA BSP:TLNC34
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Telefonica 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, Telefonica'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)
=15.604/129.8600*129.8600
=15.604

Current CPI (Mar. 2026) = 129.8600.

Telefonica Quarterly Data

Book Value per Share CPI Adj_Book
201606 0.000 100.333 0.000
201609 12.790 99.737 16.653
201612 12.751 101.842 16.259
201703 13.473 100.896 17.341
201706 12.036 101.848 15.346
201709 12.468 101.524 15.948
201712 12.707 102.975 16.025
201803 13.806 102.122 17.556
201806 12.575 104.165 15.677
201809 15.026 103.818 18.795
201812 15.271 104.193 19.033
201903 16.281 103.488 20.430
201906 14.992 104.612 18.610
201909 14.745 103.905 18.428
201912 15.036 105.015 18.593
202003 14.698 103.469 18.447
202006 14.117 104.254 17.584
202009 13.162 103.521 16.511
202012 12.724 104.456 15.819
202103 15.068 104.857 18.661
202106 25.479 107.102 30.893
202109 25.383 107.669 30.615
202112 24.554 111.298 28.649
202203 23.984 115.153 27.047
202206 23.014 118.044 25.318
202209 23.125 117.221 25.618
202212 24.138 117.650 26.643
202303 23.307 118.948 25.445
202306 23.236 120.278 25.087
202309 23.939 121.343 25.619
202312 20.705 121.300 22.166
202403 22.044 122.762 23.319
202406 21.606 124.409 22.553
202409 22.410 123.121 23.637
202412 21.902 124.753 22.799
202503 21.749 125.531 22.499
202506 19.609 127.251 20.011
202509 19.666 126.840 20.134
202512 16.115 128.400 16.298
202603 15.604 129.860 15.604

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 R$23.21 mean?
Telefonica (BSP:TLNC34) has a Cyclically Adjusted Book per Share of R$23.21 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 Telefonica and its competitors.
Is Telefonica's Cyclically Adjusted Book per Share too high?
Telefonica's current Cyclically Adjusted Book per Share is R$23.21. Overall, Telefonica has a GF Score™ of 63/100, reflecting its overall financial health beyond just this single metric.
How does Telefonica's Cyclically Adjusted Book per Share compare to TMUS and VZ?
Telefonica's Cyclically Adjusted Book per Share of R$23.21 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 Telefonica and its competitors. Telefonica's current Cyclically Adjusted Book per Share is R$23.21. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Telefonica stock overvalued right now?
Telefonica (BSP:TLNC34) has a current Cyclically Adjusted Book per Share of R$23.21. The stock's GF Value™ is R$22.66, compared to a current price of R$21.80 — trading 3.8% below its estimated fair value. The current Cyclically Adjusted Book per Share is R$23.21. Telefonica's overall GF Score™ is 63/100 with 7 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 Telefonica (BSP:TLNC34), the current Cyclically Adjusted Book per Share is R$23.21 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 Telefonica (BSP:TLNC34) Overvalued in 2026?

Based on GuruFocus' analysis, Telefonica stock appears to be undervalued. The current stock price of R$21.80 is trading 3.8% below its estimated GF Value™ of R$22.66.

Key valuation signals for BSP:TLNC34:

  • Cyclically Adjusted Book per Share: R$23.21
  • GF Value™: R$22.66 vs. price of R$21.80 (3.8% below fair value)
  • GF Score™: 63/100 with 7 warning signs

No single metric tells the full story. See the BSP:TLNC34 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Telefonica Business Description

Address Ronda de la Comunicacion, s/n, Central Building Auditorium, Telefonica District, Madrid, ESP, 28050
Telefonica is a telecommunications operator with presence in Spain (where it is the incumbent operator), the UK, Germany, Brazil, and Latin American countries. The company derives more than 30% of its revenue from Spain, close to 20% from Germany, and 20% from Brazil. Its UK operations are held through a joint venture with Virgin Media. For several years, Telefonica has been simplifying its corporate structure by selling noncore assets.
63GF Score

Get the complete analysis for BSP:TLNC34

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

R$21.80
Price
R$22.66
GF Value