1&1 AG (XSWX:1U1) Cyclically Adjusted PB Ratio: 0.64 (As of Jul. 26, 2026) — 63% Below Median

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XSWX:1U1 1&1 AG XSWX:1U1
76 GF Score
Price CHF18.60
GF Value CHF15.76
! 4 Warning Signs
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What is 1&1 AG Cyclically Adjusted PB Ratio?

1&1 AG XSWX:1U1 76 Cyclically Adjusted PB Ratio is 0.64 as of Jul. 26, 2026, which is 63% below its 10-year median of 1.71. GuruFocus rates XSWX:1U1 with a GF Score™ of 76/100 and a GF Value™ of CHF15.76. The stock has 4 warning signs investors should review. Among 288 Telecommunication Services companies, 1&1 AG ranks better than 80.56% on this metric.

As of today (2026-07-26), 1&1 AG's current share price is CHF18.60. 1&1 AG's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was CHF29.04. 1&1 AG's Cyclically Adjusted PB Ratio for today is 0.64.

The historical rank and industry rank for 1&1 AG's Cyclically Adjusted PB Ratio or its related term are showing as below:

XSWX:1U1' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.44   Med: 1.71   Max: 15.8
Current: 0.68

During the past years, 1&1 AG's highest Cyclically Adjusted PB Ratio was 15.80. The lowest was 0.44. And the median was 1.71.

XSWX:1U1's Cyclically Adjusted PB Ratio is ranked better than
80.56% of 288 companies
in the Telecommunication Services industry
Industry Median: 1.78 vs XSWX:1U1: 0.68

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.

1&1 AG's adjusted book value per share data for the three months ended in Mar. 2026 was CHF31.013. 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 CHF29.04 for the trailing ten years ended in Mar. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


1&1 AG  (XSWX:1U1) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


1&1 AG Cyclically Adjusted PB Ratio Related Terms


1&1 AG Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for 1&1 AG's Cyclically Adjusted PB Ratio 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.

1&1 AG Cyclically Adjusted PB Ratio Chart

1&1 AG Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.62 0.62 0.81 0.49 0.86

1&1 AG Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted PB Ratio 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 0.57 0.68 0.71 0.86 0.79

XSWX:1U1 vs TMUS, VZ, T: Cyclically Adjusted PB Ratio Comparison

For the Telecom Services subindustry, 1&1 AG'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.


1&1 AG Cyclically Adjusted PB Ratio vs Telecommunication Services Industry

For the Telecommunication Services industry and Communication Services sector, 1&1 AG's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where 1&1 AG's Cyclically Adjusted PB Ratio falls into.


XSWX:1U1
76GF Score
1&1 AG XSWX:1U1
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

1&1 AG Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

1&1 AG's Cyclically Adjusted PB Ratio for today is calculated as

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=18.60/29.04
=0.64

* 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.

1&1 AG's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 is calculated as:

For example, 1&1 AG'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)
=31.013/131.2583*131.2583
=31.013

Current CPI (Mar. 2026) = 131.2583.

1&1 AG Quarterly Data

Book Value per Share CPI Adj_Book
201606 5.457 100.717 7.112
201609 5.734 101.017 7.451
201612 -8.880 101.217 -11.516
201703 5.842 101.417 7.561
201706 11.921 102.117 15.323
201709 24.306 102.717 31.060
201712 25.144 102.617 32.162
201803 28.179 102.917 35.939
201806 26.657 104.017 33.638
201809 26.692 104.718 33.457
201812 27.385 104.217 34.490
201903 28.002 104.217 35.268
201906 28.176 105.718 34.983
201909 28.091 106.018 34.779
201912 28.745 105.818 35.656
202003 28.360 105.718 35.212
202006 29.279 106.618 36.046
202009 29.797 105.818 36.961
202012 29.761 105.518 37.021
202103 31.197 107.518 38.085
202106 31.359 108.486 37.942
202109 31.724 109.435 38.050
202112 30.808 110.384 36.634
202203 30.895 113.968 35.582
202206 31.475 115.760 35.689
202209 30.113 118.818 33.266
202212 31.234 119.345 34.352
202303 31.892 122.402 34.199
202306 31.827 123.140 33.925
202309 31.724 124.195 33.528
202312 31.492 123.773 33.397
202403 32.709 125.038 34.336
202406 32.832 125.882 34.234
202409 32.412 126.198 33.712
202412 32.271 127.041 33.342
202503 33.282 127.779 34.188
202506 32.783 128.412 33.510
202509 32.854 129.255 33.363
202512 31.695 129.361 32.160
202603 31.013 131.258 31.013

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

What does a Cyclically Adjusted PB Ratio of 0.64 mean?
1&1 AG (XSWX:1U1) has a Cyclically Adjusted PB Ratio of 0.64 as of Jul. 26, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on 1&1 AG and its competitors. This is 63% below median its historical median of 1.71. Over the past decade, 1&1 AG's Cyclically Adjusted PB Ratio has ranged from 0.44 to 15.80. According to the industry distribution chart, 1&1 AG ranks #56 out of 288 companies in the Telecommunication Services industry, placing it in the top 19.4%.
Is 1&1 AG's Cyclically Adjusted PB Ratio too high?
1&1 AG's current Cyclically Adjusted PB Ratio of 0.64 is 63% below median its 10-year median of 1.71. Over the past 10 years, this metric has ranged from a low of 0.44 to a high of 15.80. The Telecommunication Services industry median Cyclically Adjusted PB Ratio is 1.78. 1&1 AG's value of 0.64 is 64% below this industry median. Based on the distribution chart, 1&1 AG ranks #56 out of 288 companies in the Telecommunication Services industry, which is in the top quartile — a strong position relative to peers. Overall, 1&1 AG has a GF Score™ of 76/100, reflecting its overall financial health beyond just this single metric.
How does 1&1 AG's Cyclically Adjusted PB Ratio compare to TMUS and VZ?
According to the Telecommunication Services industry distribution chart, 1&1 AG ranks #56 out of 288 companies for Cyclically Adjusted PB Ratio. This places 1&1 AG in the top 19% of its industry — outperforming the majority of peers. The industry median Cyclically Adjusted PB Ratio is 1.78. 1&1 AG's value of 0.64 is 64% below this benchmark. Historically, 1&1 AG's own Cyclically Adjusted PB Ratio has ranged from 0.44 to 15.80 over the past decade. While the company's 10-year median is 1.71 vs. the industry median of 1.78, 1&1 AG has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted PB Ratio for a Telecommunication Services company?
The median Cyclically Adjusted PB Ratio among Telecommunication Services companies is 1.78, based on 288 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. 1&1 AG's current Cyclically Adjusted PB Ratio of 0.64 is 64% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on 1&1 AG and its competitors. For the Telecommunication Services industry, the median Cyclically Adjusted PB Ratio is 1.78 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. 1&1 AG's current Cyclically Adjusted PB Ratio is 0.64, which is 63% below median its own 10-year median of 1.71. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is 1&1 AG stock overvalued right now?
1&1 AG (XSWX:1U1) has a current Cyclically Adjusted PB Ratio of 0.64. The stock's GF Value™ is CHF15.76, compared to a current price of CHF18.60 — trading 18% above its estimated fair value. The current Cyclically Adjusted PB Ratio is 0.64, which is 63% below median its 10-year median of 1.71 and 64% below the Telecommunication Services industry median of 1.78. 1&1 AG's overall GF Score™ is 76/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For 1&1 AG (XSWX:1U1), the current Cyclically Adjusted PB Ratio is 0.64 as of Jul. 26, 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 1&1 AG (XSWX:1U1) Overvalued in 2026?

Based on GuruFocus' analysis, 1&1 AG stock appears to be overvalued. The current stock price of CHF18.60 is trading 18% above its estimated GF Value™ of CHF15.76.

Key valuation signals for XSWX:1U1:

  • Cyclically Adjusted PB Ratio: 0.64 (63% below median its 10-year median of 1.71)
  • GF Value™: CHF15.76 vs. price of CHF18.60 (18% above fair value)
  • GF Score™: 76/100 with 4 warning signs
  • Industry Position: 64% below the Telecommunication Services median (#56 of 288)

No single metric tells the full story. See the XSWX:1U1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


1&1 AG Business Description

Address Elgendorfer Strasse 57, Montabaur, DEU, 56410
1&1 AG is a network-independent telecommunications provider in Germany. The company has three business segments which include Access, 1&1 Mobile Network and 1&1 Versatel. 1&1' Access segment offers internet access products based on landline and mobile networks. The Group's chargeable mobile Internet and broadband products, including the related applications (such as home networks, online storage, telephony, smart home or IPTV) are grouped together in the Access segment. Majority revenue is from Access Segment.
76GF Score

Get the complete analysis for XSWX:1U1

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

CHF18.60
Price
CHF15.76
GF Value