IONOS Group SE (XSWX:IOS) Shiller PE Ratio: (As of Aug. 17, 2026)

Author: Vera Yuan Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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XSWX:IOS IONOS Group SE XSWX:IOS
35 GF Score
Price CHF31.84
GF Value CHF24.79
Valuation Modestly Overvalued
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What is IONOS Group SE Shiller PE Ratio?

Note: If the price history is too short, we do not calculate current Shiller PE for this stock. All the historical data is shown as the company's primary share's data instead.

IONOS Group SE does not have a history long enough to calculate E10. Therefore GuruFocus does not calculate Shiller PE Ratio for this company.

Shiller PE for Stocks: The True Measure of Stock Valuation


IONOS Group SE  (XSWX:IOS) Shiller PE Ratio Explanation

Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.

Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.


Be Aware

Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.


IONOS Group SE Shiller PE Ratio Related Terms


IONOS Group SE Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for IONOS Group SE's Shiller PE 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.

IONOS Group SE Shiller PE Ratio Chart

IONOS Group SE Annual Data
Trend Dec22 Dec23 Dec24 Dec25
Shiller PE Ratio
0.00 0.00 0.00 0.00

IONOS Group SE Quarterly Data
Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Shiller PE 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 0.00 0.00 0.00 0.00 0.00

XSWX:IOS vs IBM, ACN, FISV: Shiller PE Ratio Comparison

For the Information Technology Services subindustry, IONOS Group SE's Shiller PE Ratio, along with its competitors' market caps and Shiller PE 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.


IONOS Group SE Shiller PE Ratio vs Software Industry

For the Software industry and Technology sector, IONOS Group SE's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where IONOS Group SE's Shiller PE Ratio falls into.


XSWX:IOS
35GF Score
IONOS Group SE XSWX:IOS
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

IONOS Group SE Shiller PE Ratio Calculation

For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

IONOS Group SE does not have a history long enough to calculate E10. Therefore GuruFocus does not calculate Shiller PE Ratio for this company.

Is IONOS Group SE (XSWX:IOS) Overvalued in 2026?

Based on GuruFocus' analysis, IONOS Group SE stock appears to be overvalued. The current stock price of CHF31.84 is trading 28.4% above its estimated GF Value™ of CHF24.79. GuruFocus considers IONOS Group SE to be Modestly Overvalued.

Key valuation signals for XSWX:IOS:

  • Shiller PE Ratio:
  • GF Value™: CHF24.79 vs. price of CHF31.84 (28.4% above fair value)
  • GF Score™: 35/100

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


IONOS Group SE Business Description

Address Elgendorfer Strasse 57, Montabaur, NW, DEU, 56410
IONOS Group SE is an international digitalization partner and cloud enabler for small and medium-sized enterprises (SMEs), as well as for individual users and larger corporate customers. It offers a comprehensive product portfolio in the areas of web presence and productivity, as well as cloud solutions, which is further supported by customer care and infrastructure. In addition, IONOS offers an online marketplace for buying, selling, and parking domains. The company's operating segments include Digital Solutions & Cloud segment which offers its customers customized server products and other solutions to set up an online presence and maintain their IT infrastructure. Geographically, it derives key revenue from Germany.
35GF Score

Get the complete analysis for XSWX:IOS

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

CHF31.84
Price
CHF24.79
GF Value