Sony Group (HAM:SON1) Cyclically Adjusted PB Ratio: (As of Sep. 20, 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.
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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.

HAM:SON1 Sony Group Corp HAM:SON1
84 GF Score
Price €20.26
GF Value €19.47
Valuation Fairly Valued
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What is Sony Group Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Sony Group  (HAM:SON1) 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.


Sony Group Cyclically Adjusted PB Ratio Related Terms


Sony Group Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Sony Group'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.

Sony Group Cyclically Adjusted PB Ratio Chart

Sony Group Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 3.22 2.62 2.32 3.11 2.32

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 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 2.98 3.40 3.02 2.38 2.38

HAM:SON1 vs AAPL: Cyclically Adjusted PB Ratio 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.


HAM:SON1
84GF Score
Sony Group Corp HAM:SON1
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Sony Group 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.

Sony Group's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

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)
=8.042/113.6000*113.6000
=8.042

Current CPI (Jun. 2026) = 113.6000.

Sony Group Quarterly Data

Book Value per Share CPI Adj_Book
201609 4.092 98.000 4.743
201612 3.976 98.400 4.590
201703 4.183 98.100 4.844
201706 4.010 98.500 4.625
201709 4.036 98.800 4.641
201712 4.361 99.400 4.984
201803 4.418 99.200 5.059
201806 4.722 99.200 5.407
201809 4.805 99.900 5.464
201812 5.597 99.700 6.377
201903 5.720 99.700 6.517
201906 5.956 99.800 6.780
201909 6.382 100.100 7.243
201912 6.544 100.500 7.397
202003 6.638 100.300 7.518
202006 6.759 99.900 7.686
202009 6.656 99.900 7.569
202012 6.968 99.300 7.971
202103 8.356 99.900 9.502
202106 8.521 99.500 9.728
202109 8.881 100.100 10.079
202112 9.163 100.100 10.399
202203 8.617 101.100 9.682
202206 7.940 101.800 8.860
202209 7.917 103.100 8.723
202212 7.677 104.100 8.378
202303 7.459 104.400 8.116
202306 7.274 105.200 7.855
202309 7.395 106.200 7.910
202312 7.795 106.800 8.291
202403 7.770 107.200 8.234
202406 7.763 108.200 8.150
202409 8.321 108.900 8.680
202412 8.694 110.700 8.922
202503 8.744 111.100 8.941
202506 8.436 111.700 8.579
202509 7.707 112.000 7.817
202512 7.754 113.000 7.795
202603 7.552 112.700 7.612
202606 8.042 113.600 8.042

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.

Is Sony Group (HAM:SON1) Overvalued in 2026?

Based on GuruFocus' analysis, Sony Group stock appears to be overvalued. The current stock price of €20.26 is trading 4% above its estimated GF Value™ of €19.47. GuruFocus considers Sony Group to be Fairly Valued.

Key valuation signals for HAM:SON1:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €19.47 vs. price of €20.26 (4% above fair value)
  • GF Score™: 84/100

No single metric tells the full story. See the HAM: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.
84GF Score

Get the complete analysis for HAM:SON1

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

€20.26
Price
€19.47
GF Value