Sumitomo Metal Mining Co has the GF Score of 75, which implies that the company
is
Likely to have average performance.
The GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation, which has been found to be closely correlated to the long-term performances of stocks by backtesting from 2006 to 2021. The stocks with a higher GF Score generally generate higher returns than those with lower GF Scores. Therefore, when picking stocks, investors should invest in companies with high GF Scores. The GF Score ranges from 0 to 100, with 100 as the highest rank.
GF Score takes following five key aspects into consideration:
Each one of these components is ranked and the ranks also have positive correlation with the long term performances of stocks. The GF score is calculated using the five key aspects of analysis. Through backtesting, we know that each of these key aspects has a different impact on the stock price performance. Thus, they are weighted differently when calculating the total score. The Profitability Rank and the Growth Rank are weighted fully, while other parameters have less weight.
Based on research and backtesting result, GuruFocus believes Sumitomo Metal Mining Co
is
Likely to have average performance.
Please click GF Score to see more details on the GF Score's 5 Key Aspects of Analysis.
Sumitomo Metal Mining Co (OTCPK:STMNF) GF Score Explanation
Based on the historical long-term performances among five valuation aspects, the GF Score is found to be closely correlated to the long-term performances of stocks. It ranges from 0 to 100, with 100 as the highest. GuruFocus divided GF Score into following 5 categories:
GF Score
Performance Potential and All-in-One Screener Examples (1)
(1) These are some simple examples. You can access our GF Score filter under All-in-One Screener’s Fundamental tab.
Sumitomo Metal Mining Co GF Score Related Terms
Sumitomo Metal Mining Co GF Score Competitor Comparison
For the Other Industrial Metals & Mining subindustry, Sumitomo Metal Mining Co's GF Score, along with its competitors' market caps and GF Score 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 GF Score vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Sumitomo Metal Mining Co's GF Score distribution charts can be found below:
* The bar in red indicates where Sumitomo Metal Mining Co's GF Score falls into.
Sumitomo Metal Mining Co (STMNF) has a GF Score of 75 as of Jun. 27, 2026. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on Sumitomo Metal Mining Co and its competitors. This is near median its historical median of 78.00. Over the past decade, Sumitomo Metal Mining Co's GF Score has ranged from 29.00 to 88.00.
Is Sumitomo Metal Mining Co's GF Score too high?
Sumitomo Metal Mining Co's current GF Score of 75 is near median its 10-year median of 78.00. Over the past 10 years, this metric has ranged from a low of 29.00 to a high of 88.00. 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 GF Score compare to competitors?
Sumitomo Metal Mining Co's GF Score of 75 can be compared against companies in the Metals & Mining industry. Historically, Sumitomo Metal Mining Co's own GF Score has ranged from 29.00 to 88.00 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good GF Score for a Metals & Mining company?
A good GF Score depends on the Metals & Mining industry context. However, GF Score 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 GF Score mean?
A high GF Score can signal that a stock is expensive relative to its fundamentals. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on Sumitomo Metal Mining Co and its competitors. Sumitomo Metal Mining Co's current GF Score is 75, which is near median its own 10-year median of 78.00. 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 GF Score is 75, which is near median its 10-year median of 78.00. 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 GF Score calculated?
GF Score is calculated from a company's financial statements. For Sumitomo Metal Mining Co (STMNF), the current GF Score is 75 as of Jun. 27, 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:
GF Score: 75 (near median its 10-year median of 78.00)
GF Value™: $35.20 vs. price of $48.99 (39.2% 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.
75GF Score
Get the complete analysis for STMNF
GF Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
STMNF has been successfully added to your 