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Sumitomo Metal Mining CoSTMNF +14.74%69 3-Year Book Growth Rate is 8.90% as of Jun. 2026, which is 3% above its 10-year median of 8.65. GuruFocus rates STMNF with a GF Score™ of 69/100 and a GF Value™ of $37.32 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 2,178 Metals & Mining companies, Sumitomo Metal Mining Co ranks better than 73.65% on this metric.
During the past 12 months, Sumitomo Metal Mining Co's average Book Value per Share Growth Rate was 20.70% per year.
During the past 3 years, the average Book Value per Share Growth Rate was 8.90% per year.
During the past 5 years, the average Book Value per Share Growth Rate was 12.10% per year.
During the past 10 years, the average Book Value per Share Growth Rate was 8.90% 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 average Book Value per Share growth rate.
During the past 13 years, the highest 3-Year average Book Value per Share Growth Rate of Sumitomo Metal Mining Co was 26.90% per year. The lowest was -1.70% per year. And the median was 8.65% per year.
Sumitomo Metal Mining Co (OTCPK:STMNF) 3-Year Book Growth Rate Explanation
Book Value per Share is the ratio of equity available to common shareholders divided by the shares outstanding. Book value per share effectively indicates a firm's net asset value on a per-share basis. It can be used by investors to gauge whether a stock price is undervalued by comparing it to the firm's market value per share. Theoretically, it is what the shareholders will receive if the company is liquidated.
Sumitomo Metal Mining Co 3-Year Book Growth Rate Related Terms
Sumitomo Metal Mining Co 3-Year Book Growth Rate Competitor Comparison
For the Other Industrial Metals & Mining subindustry, Sumitomo Metal Mining Co's 3-Year Book Growth Rate, along with its competitors' market caps and 3-Year Book Growth Rate 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 3-Year Book Growth Rate vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Sumitomo Metal Mining Co's 3-Year Book Growth Rate distribution charts can be found below:
* The bar in red indicates where Sumitomo Metal Mining Co's 3-Year Book Growth Rate falls into.
Sumitomo Metal Mining Co 3-Year Book Growth Rate Calculation
This is the 3-year average growth rate of Book Value per Share. The growth rate is calculated using exponential compounding based on the latest four year annual data.
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 average Book Value per Share growth rate.
What does a 3-Year Book Growth Rate of 8.90% mean?
Sumitomo Metal Mining Co (STMNF) has a 3-Year Book Growth Rate of 8.90% as of Jun. 2026. 3-Year Book Growth Rate is the 3-year average growth rate of Book Value per Share. View historical data for Sumitomo Metal Mining Co and its competitors. This is near median its historical median of 8.65. According to the industry distribution chart, Sumitomo Metal Mining Co ranks #574 out of 2178 companies in the Metals & Mining industry, placing it in the top 26.4%.
Is Sumitomo Metal Mining Co's 3-Year Book Growth Rate too high?
Sumitomo Metal Mining Co's current 3-Year Book Growth Rate of 8.90% is near median its 10-year median of 8.65. Based on the distribution chart, Sumitomo Metal Mining Co ranks #574 out of 2178 companies in the Metals & Mining industry, which is above the industry midpoint. Overall, Sumitomo Metal Mining Co has a GF Score™ of 69/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sumitomo Metal Mining Co's 3-Year Book Growth Rate compare to competitors?
According to the Metals & Mining industry distribution chart, Sumitomo Metal Mining Co ranks #574 out of 2178 companies for 3-Year Book Growth Rate. This puts Sumitomo Metal Mining Co in the upper half of its industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 3-Year Book Growth Rate for a Metals & Mining company?
A good 3-Year Book Growth Rate depends on the Metals & Mining industry context. However, 3-Year Book Growth Rate 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 3-Year Book Growth Rate mean?
A high 3-Year Book Growth Rate can signal that a stock is expensive relative to its fundamentals. 3-Year Book Growth Rate is the 3-year average growth rate of Book Value per Share. View historical data for Sumitomo Metal Mining Co and its competitors. Sumitomo Metal Mining Co's current 3-Year Book Growth Rate is 8.90%, which is near median its own 10-year median of 8.65. 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 $37.32, compared to a current price of $71.60 — trading 91.9% above its estimated fair value. The current 3-Year Book Growth Rate is 8.90%, which is near median its 10-year median of 8.65. Sumitomo Metal Mining Co's overall GF Score™ is 69/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-Year Book Growth Rate calculated?
3-Year Book Growth Rate is calculated from a company's financial statements. For Sumitomo Metal Mining Co (STMNF), the current 3-Year Book Growth Rate is 8.90% as of Jun. 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 $71.60 is trading 91.9% above its estimated GF Value™ of $37.32.
GuruFocus considers Sumitomo Metal Mining Co to be Significantly Overvalued.
Key valuation signals for STMNF:
3-Year Book Growth Rate: 8.90% (near median its 10-year median of 8.65)
GF Value™: $37.32 vs. price of $71.60 (91.9% above fair value)
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 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.
69GF Score
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