STMNF (Sumitomo Metal Mining Co) Cyclically Adjusted Book per Share: $37.95 (As of Mar. 2026)


STMNF Sumitomo Metal Mining Co Ltd STMNF
75 GF Score
Price $48.99
GF Value $35.20
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Sumitomo Metal Mining Co Cyclically Adjusted Book per Share?

Sumitomo Metal Mining Co STMNF 75 Cyclically Adjusted Book per Share is $37.95 as of Mar. 2026. GuruFocus rates STMNF with a GF Score™ of 75/100 and a GF Value™ of $35.20 (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 Metal Mining Co's adjusted book value per share for the three months ended in Mar. 2026 was $48.329. 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 $37.95 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Sumitomo Metal Mining Co's average Cyclically Adjusted Book Growth Rate was 6.90% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 8.90% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 9.60% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 7.90% 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 Metal Mining Co was 10.50% per year. The lowest was 4.90% per year. And the median was 8.40% per year.

As of today (2026-06-27), Sumitomo Metal Mining Co's current stock price is $48.99. Sumitomo Metal Mining Co's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $37.95. Sumitomo Metal Mining Co's Cyclically Adjusted PB Ratio of today is 1.29.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Sumitomo Metal Mining Co was 2.41. The lowest was 0.54. And the median was 1.12.


Sumitomo Metal Mining Co  (OTCPK:STMNF) 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 Metal Mining Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=48.99/37.95
=1.29

* 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 Metal Mining Co was 2.41. The lowest was 0.54. And the median was 1.12.


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 Metal Mining Co Cyclically Adjusted Book per Share Related Terms


Sumitomo Metal Mining Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Sumitomo Metal Mining 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 Metal Mining Co Cyclically Adjusted Book per Share Chart

Sumitomo Metal Mining 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 31.16 31.11 26.49 36.92 37.95

Sumitomo Metal Mining 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 36.92 26.93 24.67 34.43 37.95

Sumitomo Metal Mining Co Cyclically Adjusted Book per Share Competitor Comparison

For the Other Industrial Metals & Mining subindustry, Sumitomo Metal Mining 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 Metal Mining Co Cyclically Adjusted PB Ratio vs Metals & Mining Industry

For the Metals & Mining industry and Basic Materials sector, Sumitomo Metal Mining Co's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


STMNF
75GF Score
Sumitomo Metal Mining Co Ltd STMNF
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Sumitomo Metal Mining 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 Metal Mining 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)
=48.329/112.7000*112.7000
=48.329

Current CPI (Mar. 2026) = 112.7000.

Sumitomo Metal Mining Co Quarterly Data

Book Value per Share CPI Adj_Book
201606 32.275 98.100 37.078
201609 32.437 98.000 37.303
201612 27.678 98.400 31.700
201703 30.881 98.100 35.477
201706 31.649 98.500 36.212
201709 32.243 98.800 36.779
201712 32.754 99.400 37.137
201803 35.324 99.200 40.131
201806 33.772 99.200 38.368
201809 34.760 99.900 39.214
201812 34.267 99.700 38.735
201903 34.300 99.700 38.772
201906 33.362 99.800 37.674
201909 33.591 100.100 37.819
201912 33.722 100.500 37.816
202003 33.867 100.300 38.054
202006 33.518 99.900 37.813
202009 34.800 99.900 39.259
202012 36.899 99.300 41.878
202103 37.295 99.900 42.074
202106 38.527 99.500 43.638
202109 41.083 100.100 46.254
202112 40.876 100.100 46.021
202203 44.361 101.100 49.451
202206 40.978 101.800 45.366
202209 41.547 103.100 45.416
202212 45.356 104.100 49.103
202303 44.428 104.400 47.960
202306 42.465 105.200 45.492
202309 43.603 106.200 46.272
202312 45.395 106.800 47.903
202403 43.365 107.200 45.590
202406 42.950 108.200 44.736
202409 49.831 108.900 51.570
202412 42.191 110.700 42.953
202503 45.025 111.100 45.673
202506 45.476 111.700 45.883
202509 45.107 112.000 45.389
202512 45.065 113.000 44.945
202603 48.329 112.700 48.329

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 $37.95 mean?
Sumitomo Metal Mining Co (STMNF) has a Cyclically Adjusted Book per Share of $37.95 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 Metal Mining Co and its competitors.
Is Sumitomo Metal Mining Co's Cyclically Adjusted Book per Share too high?
Sumitomo Metal Mining Co's current Cyclically Adjusted Book per Share is $37.95. Overall, Sumitomo Metal Mining Co has a GF Score™ of 75/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sumitomo Metal Mining Co's Cyclically Adjusted Book per Share compare to competitors?
Sumitomo Metal Mining Co's Cyclically Adjusted Book per Share of $37.95 can be compared against companies in the Metals & Mining 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 Metals & Mining company?
A good Cyclically Adjusted Book per Share depends on the Metals & Mining 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 Metal Mining Co and its competitors. Sumitomo Metal Mining Co's current Cyclically Adjusted Book per Share is $37.95. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sumitomo Metal Mining Co stock overvalued right now?
Based on GuruFocus' analysis, Sumitomo Metal Mining Co (STMNF) is currently considered Significantly Overvalued. The stock's GF Value™ is $35.20, compared to a current price of $48.99 — trading 39.2% above its estimated fair value. The current Cyclically Adjusted Book per Share is $37.95. Sumitomo Metal Mining Co's overall GF Score™ is 75/100 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 Metal Mining Co (STMNF), the current Cyclically Adjusted Book per Share is $37.95 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 Metal Mining Co (STMNF) Overvalued in 2026?

Based on GuruFocus' analysis, Sumitomo Metal Mining Co stock appears to be overvalued. The current stock price of $48.99 is trading 39.2% above its estimated GF Value™ of $35.20. GuruFocus considers Sumitomo Metal Mining Co to be Significantly Overvalued.

Key valuation signals for STMNF:

  • Cyclically Adjusted Book per Share: $37.95
  • GF Value™: $35.20 vs. price of $48.99 (39.2% above fair value)
  • GF Score™: 75/100 with 6 warning signs

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


Sumitomo Metal Mining Co Business Description

Address 5-11-3 Shinbashi, Shinbashi Sumitomo Building, Minato-ku, Tokyo, JPN, 105-8716
Sumitomo Metal Mining Co Ltd is a Japan-based company engaged in the mining business. The company operates through three segments. The Material segment manufactures and sells battery materials, powder and crystalline materials, tape materials, catalysts, and related products. The Resource segment focuses on the exploration, development, production, and sale of nonferrous metal resources in Japan and overseas. The Smelting segment engages in the smelting and sale of copper, nickel, ferronickel, zinc, and precious metals, including gold, silver, platinum, and palladium. The Others segment covers real estate and engineering businesses. It generates the majority of its revenue from the Smelting segment.
75GF Score

Get the complete analysis for STMNF

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

$48.99
Price
$35.20
GF Value