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.
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.
Sompo HoldingsTSE:8630 +1.06%73 Cyclically Adjusted PB Ratio is 2.60 as of Sep. 11, 2026, which is 102% above its 10-year median of 1.29. GuruFocus rates TSE:8630 with a GF Score™ of 73/100 and a GF Value™ of 円4,380.11 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 411 Insurance companies, Sompo Holdings ranks worse than 79.81% on this metric.
The historical rank and industry rank for Sompo Holdings's Cyclically Adjusted PB Ratio or its related term are showing as below:
TSE:8630'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.81 Med: 1.29 Max: 2.79
Current: 2.68
During the past years, Sompo Holdings's highest Cyclically Adjusted PB Ratio was 2.79. The lowest was 0.81. And the median was 1.29.
TSE:8630's Cyclically Adjusted PB Ratio is ranked worse than 79.81% of 411
companies
in the Insurance industry
Industry Median: 1.41
vs TSE:8630: 2.68
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.
Sompo Holdings's adjusted book value per share data for the three months ended in Mar. 2026 was 円5,791.947. 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 円2,553.68 for the trailing ten years ended in Mar. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Sompo Holdings (TSE:8630) 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.
Sompo Holdings Cyclically Adjusted PB Ratio Related Terms
Sompo Holdings Cyclically Adjusted PB Ratio Historical Data
* Premium members only.
The historical data trend for Sompo Holdings'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.
TSE:8630 vs CB, PGR, TRV: Cyclically Adjusted PB Ratio Comparison
For the Insurance - Property & Casualty subindustry, Sompo Holdings'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.
Sompo Holdings Cyclically Adjusted PB Ratio vs Insurance Industry
For the Insurance industry and Financial Services sector, Sompo Holdings's Cyclically Adjusted PB Ratio distribution charts can be found below:
* The bar in red indicates where Sompo Holdings's Cyclically Adjusted PB Ratio falls into.
Sompo Holdings 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.
Sompo Holdings's Cyclically Adjusted PB Ratio for today is calculated as
* 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.
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 2.60 mean?
Sompo Holdings (TSE:8630) has a Cyclically Adjusted PB Ratio of 2.60 as of Sep. 11, 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 Sompo Holdings and its competitors. This is 102% above median its historical median of 1.29. Over the past decade, Sompo Holdings' Cyclically Adjusted PB Ratio has ranged from 0.81 to 2.79. According to the industry distribution chart, Sompo Holdings ranks #328 out of 411 companies in the Insurance industry, placing it in the top 79.8%.
Is Sompo Holdings' Cyclically Adjusted PB Ratio too high?
Sompo Holdings' current Cyclically Adjusted PB Ratio of 2.60 is 102% above median its 10-year median of 1.29. Over the past 10 years, this metric has ranged from a low of 0.81 to a high of 2.79. The Insurance industry median Cyclically Adjusted PB Ratio is 1.41. Sompo Holdings' value of 2.60 is 84.4% above this industry median. Based on the distribution chart, Sompo Holdings ranks #328 out of 411 companies in the Insurance industry, which is in the bottom quartile relative to peers. Overall, Sompo Holdings has a GF Score™ of 73/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sompo Holdings' Cyclically Adjusted PB Ratio compare to CB and PGR?
According to the Insurance industry distribution chart, Sompo Holdings ranks #328 out of 411 companies for Cyclically Adjusted PB Ratio. This places Sompo Holdings in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.41. Sompo Holdings' value of 2.60 is 84.4% above this benchmark. Historically, Sompo Holdings' own Cyclically Adjusted PB Ratio has ranged from 0.81 to 2.79 over the past decade. While the company's 10-year median is 1.29 vs. the industry median of 1.41, Sompo Holdings has consistently been above 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 an Insurance company?
The median Cyclically Adjusted PB Ratio among Insurance companies is 1.41, based on 411 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. Sompo Holdings's current Cyclically Adjusted PB Ratio of 2.60 is 84.4% above 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 Sompo Holdings and its competitors. For the Insurance industry, the median Cyclically Adjusted PB Ratio is 1.41 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sompo Holdings's current Cyclically Adjusted PB Ratio is 2.60, which is 102% above median its own 10-year median of 1.29. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sompo Holdings stock overvalued right now?
Based on GuruFocus' analysis, Sompo Holdings (TSE:8630) is currently considered Significantly Overvalued. The stock's GF Value™ is 円4,380.11, compared to a current price of 円6,648.00 — trading 51.8% above its estimated fair value. The current Cyclically Adjusted PB Ratio is 2.60, which is 102% above median its 10-year median of 1.29 and 84.4% above the Insurance industry median of 1.41. Sompo Holdings' overall GF Score™ is 73/100 with 5 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 Sompo Holdings (TSE:8630), the current Cyclically Adjusted PB Ratio is 2.60 as of Sep. 11, 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 Sompo Holdings (TSE:8630) Overvalued in 2026?
Based on GuruFocus' analysis, Sompo Holdings stock appears to be overvalued.
The current stock price of 円6,648.00 is trading 51.8% above its estimated GF Value™ of 円4,380.11.
GuruFocus considers Sompo Holdings to be Significantly Overvalued.
Key valuation signals for TSE:8630:
Cyclically Adjusted PB Ratio: 2.60 (102% above median its 10-year median of 1.29)
GF Value™: 円4,380.11 vs. price of 円6,648.00 (51.8% above fair value)
Industry Position: 84.4% above the Insurance median (#328 of 411)
No single metric tells the full story. See the TSE:8630 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sompo Holdings was formed in 2010 through the merger of Sompo Japan and Nipponkoa Insurance. The Sompo brand—meaning "nonlife insurance" in Japanese—dates to 2001, when Yasuda Fire, Nissan Fire, and Taisei Fire combined. Today, Sompo maintains a formidable position in its home market, holding an approximate 28% share of domestic nonlife insurance premiums in Japan, operating in a consolidated oligopoly alongside larger rivals Tokio Marine and MS&AD. Following record-high profitability in fiscal 2025 and the transformative acquisition of Aspen Insurance, the group is aggressively expanding its global footprint, with overseas business and reinsurance now functioning as its primary profit engines, contributing over half of the group's adjusted consolidated profit.
73GF Score
Get the complete analysis for TSE:8630
Cyclically Adjusted PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
TSE:8630 has been successfully added to your 
