Tosoh (STU:TOS) Cyclically Adjusted Book per Share: €11.86 (As of Mar. 2026)


STU:TOS Tosoh Corp STU:TOS
79 GF Score
Price €15.00
GF Value €11.61
Valuation Modestly Overvalued
! 9 Warning Signs
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What is Tosoh Cyclically Adjusted Book per Share?

Tosoh STU:TOS -5.06% 79 Cyclically Adjusted Book per Share is €11.86 as of Mar. 2026. GuruFocus rates STU:TOS with a GF Score™ of 79/100 and a GF Value™ of €11.61 (Modestly Overvalued). The stock has 9 warning signs investors should review.

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.

Tosoh's adjusted book value per share for the three months ended in Mar. 2026 was €14.727. 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 €11.86 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Tosoh's average Cyclically Adjusted Book Growth Rate was 9.00% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 11.50% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 13.20% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 13.20% 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 Tosoh was 14.60% per year. The lowest was 11.50% per year. And the median was 13.35% per year.

As of today (2026-07-02), Tosoh's current stock price is €15.00. Tosoh's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was €11.86. Tosoh's Cyclically Adjusted PB Ratio of today is 1.26.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Tosoh was 3.57. The lowest was 0.98. And the median was 1.45.


Tosoh  (STU:TOS) 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.

Tosoh's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=15.00/11.86
=1.26

* 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 Tosoh was 3.57. The lowest was 0.98. And the median was 1.45.


Be Aware

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


Tosoh Cyclically Adjusted Book per Share Related Terms


Tosoh Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Tosoh'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.

Tosoh Cyclically Adjusted Book per Share Chart

Tosoh 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 9.41 10.43 10.43 11.98 11.86

Tosoh Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 11.98 11.65 11.65 11.31 11.86

STU:TOS vs DOW: Cyclically Adjusted Book per Share Comparison

For the Chemicals subindustry, Tosoh'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.


Tosoh Cyclically Adjusted PB Ratio vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, Tosoh's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


STU:TOS
79GF Score
Tosoh Corp STU:TOS
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tosoh 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, Tosoh'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)
=14.727/112.7000*112.7000
=14.727

Current CPI (Mar. 2026) = 112.7000.

Tosoh Quarterly Data

Book Value per Share CPI Adj_Book
201606 8.883 98.100 10.205
201609 9.591 98.000 11.030
201612 9.627 98.400 11.026
201703 10.547 98.100 12.117
201706 10.370 98.500 11.865
201709 10.443 98.800 11.912
201712 10.861 99.400 12.314
201803 11.567 99.200 13.141
201806 11.892 99.200 13.510
201809 12.295 99.900 13.870
201812 12.610 99.700 14.254
201903 13.269 99.700 14.999
201906 13.625 99.800 15.386
201909 14.452 100.100 16.271
201912 14.410 100.500 16.159
202003 14.693 100.300 16.509
202006 14.231 99.900 16.054
202009 14.213 99.900 16.034
202012 14.406 99.300 16.350
202103 14.957 99.900 16.873
202106 14.888 99.500 16.863
202109 15.913 100.100 17.916
202112 16.560 100.100 18.644
202203 17.064 101.100 19.022
202206 16.098 101.800 17.822
202209 16.526 103.100 18.065
202212 16.226 104.100 17.566
202303 16.221 104.400 17.511
202306 15.256 105.200 16.344
202309 15.261 106.200 16.195
202312 15.381 106.800 16.231
202403 15.323 107.200 16.109
202406 0.000 108.200 0.000
202409 16.126 108.900 16.689
202412 15.832 110.700 16.118
202503 16.115 111.100 16.347
202506 15.291 111.700 15.428
202509 14.785 112.000 14.877
202512 14.177 113.000 14.139
202603 14.727 112.700 14.727

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 €11.86 mean?
Tosoh (STU:TOS) has a Cyclically Adjusted Book per Share of €11.86 as of Mar. 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 Tosoh and its competitors.
Is Tosoh's Cyclically Adjusted Book per Share too high?
Tosoh's current Cyclically Adjusted Book per Share is €11.86. Overall, Tosoh has a GF Score™ of 79/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Tosoh's Cyclically Adjusted Book per Share compare to DOW?
Tosoh's Cyclically Adjusted Book per Share of €11.86 can be compared against companies in the Chemicals 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 Chemicals company?
A good Cyclically Adjusted Book per Share depends on the Chemicals 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 Tosoh and its competitors. Tosoh's current Cyclically Adjusted Book per Share is €11.86. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tosoh stock overvalued right now?
Based on GuruFocus' analysis, Tosoh (STU:TOS) is currently considered Modestly Overvalued. The stock's GF Value™ is €11.61, compared to a current price of €15.00 — trading 29.2% above its estimated fair value. The current Cyclically Adjusted Book per Share is €11.86. Tosoh's overall GF Score™ is 79/100 with 9 warning signs to review. 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 Tosoh (STU:TOS), the current Cyclically Adjusted Book per Share is €11.86 as of Mar. 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 Tosoh (STU:TOS) Overvalued in 2026?

Based on GuruFocus' analysis, Tosoh stock appears to be overvalued. The current stock price of €15.00 is trading 29.2% above its estimated GF Value™ of €11.61. GuruFocus considers Tosoh to be Modestly Overvalued.

Key valuation signals for STU:TOS:

  • Cyclically Adjusted Book per Share: €11.86
  • GF Value™: €11.61 vs. price of €15.00 (29.2% above fair value)
  • GF Score™: 79/100 with 9 warning signs

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


Tosoh Business Description

Address 4560 Kaiseicho, Yamaguchi Prefecture, Shunan, JPN, 746-8501
Tosoh Corp manufactures and sells a variety of petrochemicals, plastics, and chemical-based products. The firm organizes itself into five segments. The Chlor-alkali segment produces caustic soda and vinyl chloride monomer. The Engineering segment handles manufacturing, sales, construction, repair, and water treatment equipment. The Functional Products segment covers inorganic and organic fine chemicals, diagnostic and metrology products, and electronic materials such as fused silica and sputtering targets. The Petrochemical segment includes olefins like ethylene and propylene, polyethylene products, and resins. The Others segment comprises transportation, warehousing, inspection, analysis, and information processing services. It generates majority of its revenue from Chlor-alkali segment.
79GF Score

Get the complete analysis for STU:TOS

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

€15.00
Price
€11.61
GF Value