Sony Group (STU:SON1) Cyclically Adjusted Book per Share: €5.40 (As of Jun. 2026)

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STU:SON1 Sony Group Corp STU:SON1
81 GF Score
Price €19.80
GF Value €16.92
Valuation Modestly Overvalued
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What is Sony Group Cyclically Adjusted Book per Share?

Sony Group STU:SON1 +2.54% 81 Cyclically Adjusted Book per Share is €5.40 as of Jun. 2026. GuruFocus rates STU:SON1 with a GF Score™ of 81/100 and a GF Value™ of €16.92 (Modestly Overvalued).

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.

Sony Group's adjusted book value per share for the three months ended in Jun. 2026 was €7.695. 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 €5.40 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Sony Group'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 13.20% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 13.70% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 7.00% 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 Sony Group was 14.20% per year. The lowest was -4.50% per year. And the median was 2.00% per year.

As of today (2026-08-01), Sony Group's current stock price is €19.802. Sony Group's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was €5.40. Sony Group's Cyclically Adjusted PB Ratio of today is 3.67.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Sony Group was 5.10. The lowest was 1.17. And the median was 3.30.


Sony Group  (STU:SON1) 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.

Sony Group's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=19.802/5.40
=3.67

* 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 Sony Group was 5.10. The lowest was 1.17. And the median was 3.30.


Be Aware

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


Sony Group Cyclically Adjusted Book per Share Related Terms


Sony Group Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Sony Group'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.

Sony Group Cyclically Adjusted Book per Share Chart

Sony Group Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 4.25 4.57 4.57 5.33 5.42

Sony Group Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 5.28 5.31 5.26 5.42 5.40

STU:SON1 vs AAPL: Cyclically Adjusted Book per Share Comparison

For the Consumer Electronics subindustry, Sony Group'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.


Sony Group Cyclically Adjusted PB Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Sony Group's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


STU:SON1
81GF Score
Sony Group Corp STU:SON1
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Sony Group 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, Sony Group's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book= Book Value per Share /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=7.695/113.6000*113.6000
=7.695

Current CPI (Jun. 2026) = 113.6000.

Sony Group Quarterly Data

Book Value per Share CPI Adj_Book
201609 3.203 98.000 3.713
201612 3.176 98.400 3.667
201703 3.275 98.100 3.792
201706 3.293 98.500 3.798
201709 3.267 98.800 3.756
201712 3.597 99.400 4.111
201803 3.587 99.200 4.108
201806 3.955 99.200 4.529
201809 4.055 99.900 4.611
201812 4.666 99.700 5.317
201903 4.770 99.700 5.435
201906 5.055 99.800 5.754
201909 5.358 100.100 6.081
201912 5.693 100.500 6.435
202003 6.716 100.300 7.607
202006 5.854 99.900 6.657
202009 6.558 99.900 7.457
202012 6.906 99.300 7.901
202103 8.332 99.900 9.475
202106 8.398 99.500 9.588
202109 8.802 100.100 9.989
202112 9.266 100.100 10.516
202203 7.000 101.100 7.865
202206 7.902 101.800 8.818
202209 7.844 103.100 8.643
202212 7.499 104.100 8.183
202303 7.470 104.400 8.128
202306 7.411 105.200 8.003
202309 7.324 106.200 7.834
202312 7.565 106.800 8.047
202403 7.629 107.200 8.084
202406 7.594 108.200 7.973
202409 8.051 108.900 8.398
202412 8.435 110.700 8.656
202503 8.425 111.100 8.615
202506 8.291 111.700 8.432
202509 7.411 112.000 7.517
202512 7.492 113.000 7.532
202603 7.492 112.700 7.552
202606 7.695 113.600 7.695

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 €5.40 mean?
Sony Group (STU:SON1) has a Cyclically Adjusted Book per Share of €5.40 as of Jun. 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 Sony Group and its competitors.
Is Sony Group's Cyclically Adjusted Book per Share too high?
Sony Group's current Cyclically Adjusted Book per Share is €5.40. Overall, Sony Group has a GF Score™ of 81/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sony Group's Cyclically Adjusted Book per Share compare to AAPL?
Sony Group's Cyclically Adjusted Book per Share of €5.40 can be compared against companies in the Hardware 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 Hardware company?
A good Cyclically Adjusted Book per Share depends on the Hardware 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 Sony Group and its competitors. Sony Group's current Cyclically Adjusted Book per Share is €5.40. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sony Group stock overvalued right now?
Based on GuruFocus' analysis, Sony Group (STU:SON1) is currently considered Modestly Overvalued. The stock's GF Value™ is €16.92, compared to a current price of €19.80 — trading 17% above its estimated fair value. The current Cyclically Adjusted Book per Share is €5.40. Sony Group's overall GF Score™ is 81/100. 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 Sony Group (STU:SON1), the current Cyclically Adjusted Book per Share is €5.40 as of Jun. 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 Sony Group (STU:SON1) Overvalued in 2026?

Based on GuruFocus' analysis, Sony Group stock appears to be overvalued. The current stock price of €19.80 is trading 17% above its estimated GF Value™ of €16.92. GuruFocus considers Sony Group to be Modestly Overvalued.

Key valuation signals for STU:SON1:

  • Cyclically Adjusted Book per Share: €5.40
  • GF Value™: €16.92 vs. price of €19.80 (17% above fair value)
  • GF Score™: 81/100

No single metric tells the full story. See the STU:SON1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Sony Group Business Description

Address 7-1, Konan 1-Chome, Minato-ku, Tokyo, JPN, 108-0075
Sony Group is a conglomerate with consumer electronics roots, which not only designs, develops, produces, and sells electronic equipment and devices, but also is engaged in content businesses, such as console and mobile games, music, and movies. Sony is the global top company of CMOS image sensors, game consoles, professional broadcasting cameras, and music publishing, and is one of the top players on digital cameras, wireless earphones, recorded music, movies, and so on. Sony's business portfolio is well diversified with five major business segments.
81GF Score

Get the complete analysis for STU:SON1

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

€19.80
Price
€16.92
GF Value