Proximus (WBO:PROX) Cyclically Adjusted Book per Share: €0.00 (As of Mar. 2026)


WBO:PROX Proximus SA WBO:PROX
53 GF Score
Price €5.78
GF Value €5.16
Valuation Modestly Overvalued
! 7 Warning Signs
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What is Proximus Cyclically Adjusted Book per Share?

Proximus WBO:PROX -1.45% 53 Cyclically Adjusted Book per Share is €0.00 as of Mar. 2026. GuruFocus rates WBO:PROX with a GF Score™ of 53/100 and a GF Value™ of €5.16 (Modestly Overvalued). 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.

Proximus's adjusted book value per share for the three months ended in Mar. 2026 was €0.000. 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 €0.00 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Proximus's average Cyclically Adjusted Book Growth Rate was -100.00% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 2.40% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 3.70% 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 Proximus was 4.00% per year. The lowest was -15.00% per year. And the median was 2.40% per year.

As of today (2026-07-02), Proximus's current stock price is €5.775. Proximus's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was €0.00. Proximus's Cyclically Adjusted PB Ratio of today is .

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Proximus was 3.05. The lowest was 0.43. And the median was 1.71.


Proximus  (WBO:PROX) 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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Proximus was 3.05. The lowest was 0.43. And the median was 1.71.


Be Aware

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


Proximus Cyclically Adjusted Book per Share Related Terms


Proximus Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Proximus'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.

Proximus Cyclically Adjusted Book per Share Chart

Proximus 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 10.11 11.00 10.92 11.04 11.65

Proximus 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 11.39 11.40 11.42 11.65 0.00

WBO:PROX vs TMUS, VZ, T: Cyclically Adjusted Book per Share Comparison

For the Telecom Services subindustry, Proximus'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.


Proximus Cyclically Adjusted PB Ratio vs Telecommunication Services Industry

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

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


WBO:PROX
53GF Score
Proximus SA WBO:PROX
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Proximus 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, Proximus'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)
=0/135.0710*135.0710
=0.000

Current CPI (Mar. 2026) = 135.0710.

Proximus Quarterly Data

Book Value per Share CPI Adj_Book
201606 8.197 102.267 10.826
201609 8.641 102.118 11.429
201612 8.737 102.614 11.501
201703 9.125 103.972 11.854
201706 8.496 103.902 11.045
201709 8.923 104.170 11.570
201712 8.855 104.804 11.412
201803 9.673 105.419 12.394
201806 9.069 106.063 11.549
201809 9.494 106.618 12.028
201812 9.314 107.252 11.730
201903 9.720 107.876 12.170
201906 9.159 107.896 11.466
201909 9.567 107.470 12.024
201912 8.843 108.065 11.053
202003 9.310 108.550 11.585
202006 8.747 108.540 10.885
202009 9.210 108.441 11.472
202012 8.996 108.511 11.198
202103 9.130 109.522 11.260
202106 8.761 110.305 10.728
202109 9.144 111.543 11.073
202112 9.227 114.705 10.865
202203 9.701 118.620 11.046
202206 10.011 120.948 11.180
202209 10.571 124.120 11.504
202212 10.258 126.578 10.946
202303 10.512 126.528 11.222
202306 10.096 125.973 10.825
202309 10.489 127.083 11.148
202312 10.229 128.292 10.769
202403 10.579 130.552 10.945
202406 10.669 130.691 11.027
202409 11.167 130.968 11.517
202412 13.366 132.346 13.641
202503 13.704 134.348 13.778
202506 13.943 133.495 14.108
202509 14.084 133.743 14.224
202512 13.944 135.071 13.944
202603 0.000 135.071 0.000

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 €0.00 mean?
Proximus (WBO:PROX) has a Cyclically Adjusted Book per Share of €0.00 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 Proximus and its competitors.
Is Proximus' Cyclically Adjusted Book per Share too high?
Proximus' current Cyclically Adjusted Book per Share is €0.00. Overall, Proximus has a GF Score™ of 53/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Proximus' Cyclically Adjusted Book per Share compare to TMUS and VZ?
Proximus' Cyclically Adjusted Book per Share of €0.00 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 Proximus and its competitors. Proximus's current Cyclically Adjusted Book per Share is €0.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Proximus stock overvalued right now?
Based on GuruFocus' analysis, Proximus (WBO:PROX) is currently considered Modestly Overvalued. The stock's GF Value™ is €5.16, compared to a current price of €5.78 — trading 11.9% above its estimated fair value. The current Cyclically Adjusted Book per Share is €0.00. Proximus' overall GF Score™ is 53/100 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 Proximus (WBO:PROX), the current Cyclically Adjusted Book per Share is €0.00 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 Proximus (WBO:PROX) Overvalued in 2026?

Based on GuruFocus' analysis, Proximus stock appears to be overvalued. The current stock price of €5.78 is trading 11.9% above its estimated GF Value™ of €5.16. GuruFocus considers Proximus to be Modestly Overvalued.

Key valuation signals for WBO:PROX:

  • Cyclically Adjusted Book per Share: €0.00
  • GF Value™: €5.16 vs. price of €5.78 (11.9% above fair value)
  • GF Score™: 53/100 with 7 warning signs

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


Proximus Business Description

Address Boulevard du Roi Albert II, 27 B, Proximus Towers, Brussels, BEL, B-1030
Proximus is the incumbent telecom operator in Belgium. The firm has around 45% share of the broadband market and 30% of the postpaid mobile market, competing with Telenet and Orange. Proximus is rolling out fiber to the home in Belgium and expects to have 95% of the country covered by 2032. Its international carrier services division, BICS, is one of the four largest in the world, serving more than 250 operators, which was strengthened with the acquisition of Telesign.
53GF Score

Get the complete analysis for WBO:PROX

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

€5.78
Price
€5.16
GF Value