Sumitomo Metal Mining CoSTMNF 78 ROE % is 13.59% as of Mar. 2026, which is 77% above its 10-year median of 7.69. GuruFocus rates STMNF with a GF Score™ of 78/100 and a GF Value™ of $39.25 (Modestly Overvalued). The stock has 6 warning signs investors should review. Among 2,389 Metals & Mining companies, Sumitomo Metal Mining Co ranks better than 81.5% on this metric.
The historical rank and industry rank for Sumitomo Metal Mining Co's ROE % or its related term are showing as below:
STMNF'
s ROE % Range Over the Past 10 Years
Min: -1.91 Med: 7.69 Max: 21.96
Current: 9.36
During the past 13 years, Sumitomo Metal Mining Co's highest ROE % was 21.96%. The lowest was -1.91%. And the median was 7.69%.
STMNF's ROE % is ranked better than 81.5% of 2389
companies
in the Metals & Mining industry
Industry Median: -16.11
vs STMNF: 9.36
Sumitomo Metal Mining Co (OTCPK:STMNF) ROE % Explanation
ROE % measures the rate of return on the ownership interest (shareholder's equity) of the common stock owners. It measures a firm's efficiency at generating profits from every unit of shareholders' equity (also known as net assets or assets minus liabilities). ROE % shows how well a company uses investment funds to generate earnings growth. ROE %s between 15% and 20% are considered desirable.
The factors that affect a company's ROE % can be illustrated with the three-step DuPont Analysis:
Note:
The net income data used here is four times the quarterly (Mar. 2026) net income data. The Revenue data used here is four times the quarterly (Mar. 2026) revenue data. The same rule applies to Pre-Tax Income and Operating Income.
* In the five-step DuPont Analysis, Operating Income is only available for non-financial companies. Thus, for Insurance companies, we use EBIT as a substitution of Operating Income. For Banks, both Operating Income and EBIT is unavailable. Thus we combined Interest Burden and Operating Margin % into Pretax Margin %, and the DuPont Analysis is divided into four components instead.
* 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.
Be Aware
Net Income is used.
Because a company can increase its ROE % by having more financial leverage, it is important to watch the equity multiplier when investing in high ROE % companies. Like ROA %, ROE % is calculated with only 12 months data. Fluctuations in company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective.
Asset light businesses require very few assets to generate very high earnings. Their ROE %s can be extremely high.
* 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 ROE % Competitor Comparison
For the Other Industrial Metals & Mining subindustry, Sumitomo Metal Mining Co's ROE %, along with its competitors' market caps and ROE % 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 ROE % vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Sumitomo Metal Mining Co's ROE % distribution charts can be found below:
* The bar in red indicates where Sumitomo Metal Mining Co's ROE % falls into.
* 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.
In the calculation of annual ROE %, the net income of the last fiscal year and the average total shareholder equity over the fiscal year are used. In calculating the quarterly data,
the net income data used here is four times the quarterly (Mar. 2026) net income data.
ROE % is displayed in the 30-year financial page.
Sumitomo Metal Mining Co (STMNF) has a ROE % of 13.59% as of Mar. 2026. Return on equity is the ratio of current-period net income to average two-period total equity. View historical data on Sumitomo Metal Mining Co and its competitors. This is 77% above median its historical median of 7.69. According to the industry distribution chart, Sumitomo Metal Mining Co ranks #442 out of 2389 companies in the Metals & Mining industry, placing it in the top 18.5%.
Is Sumitomo Metal Mining Co's ROE % too high?
Sumitomo Metal Mining Co's current ROE % of 13.59% is 77% above median its 10-year median of 7.69. Based on the distribution chart, Sumitomo Metal Mining Co ranks #442 out of 2389 companies in the Metals & Mining industry, which is in the top quartile — a strong position relative to peers. Overall, Sumitomo Metal Mining Co has a GF Score™ of 78/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sumitomo Metal Mining Co's ROE % compare to competitors?
According to the Metals & Mining industry distribution chart, Sumitomo Metal Mining Co ranks #442 out of 2389 companies for ROE %. This places Sumitomo Metal Mining Co in the top 19% of its industry — outperforming the majority of peers. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROE % for a Metals & Mining company?
A good ROE % depends on the Metals & Mining industry context. However, ROE % 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 ROE % mean?
A high ROE % can signal that a stock is expensive relative to its fundamentals. Return on equity is the ratio of current-period net income to average two-period total equity. View historical data on Sumitomo Metal Mining Co and its competitors. Sumitomo Metal Mining Co's current ROE % is 13.59%, which is 77% above median its own 10-year median of 7.69. 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 Modestly Overvalued. The stock's GF Value™ is $39.25, compared to a current price of $48.99 — trading 24.8% above its estimated fair value. The current ROE % is 13.59%, which is 77% above median its 10-year median of 7.69. Sumitomo Metal Mining Co's overall GF Score™ is 78/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROE % calculated?
ROE % is calculated from a company's financial statements. For Sumitomo Metal Mining Co (STMNF), the current ROE % is 13.59% 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 24.8% above its estimated GF Value™ of $39.25.
GuruFocus considers Sumitomo Metal Mining Co to be Modestly Overvalued.
Key valuation signals for STMNF:
ROE %: 13.59% (77% above median its 10-year median of 7.69)
GF Value™: $39.25 vs. price of $48.99 (24.8% 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.
78GF Score
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