SOMMY (Sumitomo Chemical Co) Cyclically Adjusted Book per Share: $21.80 (As of Mar. 2026)


SOMMY Sumitomo Chemical Co Ltd SOMMY
60 GF Score
Price $16.82
GF Value $11.32
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Sumitomo Chemical Co Cyclically Adjusted Book per Share?

Sumitomo Chemical Co SOMMY +1.92% 60 Cyclically Adjusted Book per Share is $21.80 as of Mar. 2026. GuruFocus rates SOMMY with a GF Score™ of 60/100 and a GF Value™ of $11.32 (Significantly Overvalued). The stock has 6 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.

Sumitomo Chemical Co's adjusted book value per share for the three months ended in Mar. 2026 was $19.245. 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 $21.80 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Sumitomo Chemical Co's average Cyclically Adjusted Book Growth Rate was 1.80% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 4.80% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 7.50% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 6.70% 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 Sumitomo Chemical Co was 9.80% per year. The lowest was 4.80% per year. And the median was 6.40% per year.

As of today (2026-07-06), Sumitomo Chemical Co's current stock price is $16.8223. Sumitomo Chemical Co's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $21.80. Sumitomo Chemical Co's Cyclically Adjusted PB Ratio of today is 0.77.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Sumitomo Chemical Co was 2.12. The lowest was 0.47. And the median was 1.03.


Sumitomo Chemical Co  (OTCPK:SOMMY) 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.

Sumitomo Chemical Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=16.8223/21.80
=0.77

* 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 Sumitomo Chemical Co was 2.12. The lowest was 0.47. And the median was 1.03.


Be Aware

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


Sumitomo Chemical Co Cyclically Adjusted Book per Share Related Terms


Sumitomo Chemical Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Sumitomo Chemical Co'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.

Sumitomo Chemical Co Cyclically Adjusted Book per Share Chart

Sumitomo Chemical Co 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 21.00 22.19 19.66 22.05 21.80

Sumitomo Chemical Co 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 22.05 22.86 22.41 21.70 21.80

SOMMY vs DOW: Cyclically Adjusted Book per Share Comparison

For the Chemicals subindustry, Sumitomo Chemical Co'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.


Sumitomo Chemical Co Cyclically Adjusted PB Ratio vs Chemicals Industry

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

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


SOMMY
60GF Score
Sumitomo Chemical Co Ltd SOMMY
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
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Sumitomo Chemical Co 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, Sumitomo Chemical Co'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)
=19.245/112.7000*112.7000
=19.245

Current CPI (Mar. 2026) = 112.7000.

Sumitomo Chemical Co Quarterly Data

Book Value per Share CPI Adj_Book
201606 20.629 98.100 23.699
201609 21.055 98.000 24.213
201612 20.862 98.400 23.894
201703 22.019 98.100 25.296
201706 23.021 98.500 26.340
201709 24.362 98.800 27.789
201712 25.197 99.400 28.568
201803 26.735 99.200 30.373
201806 26.027 99.200 29.569
201809 27.034 99.900 30.498
201812 26.649 99.700 30.124
201903 27.479 99.700 31.062
201906 27.323 99.800 30.855
201909 27.385 100.100 30.832
201912 27.288 100.500 30.601
202003 26.244 100.300 29.489
202006 25.836 99.900 29.146
202009 26.264 99.900 29.629
202012 27.177 99.300 30.844
202103 28.675 99.900 32.349
202106 29.040 99.500 32.893
202109 30.006 100.100 33.783
202112 30.372 100.100 34.195
202203 31.415 101.100 35.019
202206 30.665 101.800 33.948
202209 29.435 103.100 32.176
202212 29.707 104.100 32.161
202303 26.790 104.400 28.920
202306 26.491 105.200 28.380
202309 25.303 106.200 26.852
202312 24.672 106.800 26.035
202403 19.702 107.200 20.713
202406 19.806 108.200 20.630
202409 19.441 108.900 20.119
202412 18.826 110.700 19.166
202503 18.462 111.100 18.728
202506 18.731 111.700 18.899
202509 19.800 112.000 19.924
202512 20.171 113.000 20.117
202603 19.245 112.700 19.245

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 $21.80 mean?
Sumitomo Chemical Co (SOMMY) has a Cyclically Adjusted Book per Share of $21.80 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 Sumitomo Chemical Co and its competitors.
Is Sumitomo Chemical Co's Cyclically Adjusted Book per Share too high?
Sumitomo Chemical Co's current Cyclically Adjusted Book per Share is $21.80. Overall, Sumitomo Chemical Co has a GF Score™ of 60/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sumitomo Chemical Co's Cyclically Adjusted Book per Share compare to DOW?
Sumitomo Chemical Co's Cyclically Adjusted Book per Share of $21.80 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 Sumitomo Chemical Co and its competitors. Sumitomo Chemical Co's current Cyclically Adjusted Book per Share is $21.80. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sumitomo Chemical Co stock overvalued right now?
Based on GuruFocus' analysis, Sumitomo Chemical Co (SOMMY) is currently considered Significantly Overvalued. The stock's GF Value™ is $11.32, compared to a current price of $16.82 — trading 48.6% above its estimated fair value. The current Cyclically Adjusted Book per Share is $21.80. Sumitomo Chemical Co's overall GF Score™ is 60/100 with 6 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 Sumitomo Chemical Co (SOMMY), the current Cyclically Adjusted Book per Share is $21.80 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 Sumitomo Chemical Co (SOMMY) Overvalued in 2026?

Based on GuruFocus' analysis, Sumitomo Chemical Co stock appears to be overvalued. The current stock price of $16.82 is trading 48.6% above its estimated GF Value™ of $11.32. GuruFocus considers Sumitomo Chemical Co to be Significantly Overvalued.

Key valuation signals for SOMMY:

  • Cyclically Adjusted Book per Share: $21.80
  • GF Value™: $11.32 vs. price of $16.82 (48.6% above fair value)
  • GF Score™: 60/100 with 6 warning signs

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


Sumitomo Chemical Co Business Description

Address 2-7-1 Nihonbashi, Tokyo Nihonbashi Tower, Chuo-ku, Tokyo, JPN, 103-6020
Sumitomo Chemical Co Ltd is a Japanese chemical manufacturer. The company operates through six segments. Advanced Medical Solutions covers small molecule drugs, medical oligonucleotides, and regenerative medicine contract manufacturing. Agro & Life Solutions provides pesticides, fertilizers, agricultural materials, insecticides, and feed additives. Essential & Green Materials include synthetic resins, industrial chemicals, methacrylics, aluminum, alumina, and synthetic rubber. ICT & Mobility Solutions handles optical products, semiconductor materials, touch panels, engineering plastics, and battery materials. Sumitomo Pharma focuses on small-molecule drugs, while Others include reagents, energy, plant engineering, transport, and warehousing.
60GF Score

Get the complete analysis for SOMMY

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

$16.82
Price
$11.32
GF Value