Sumitomo Metal Mining CoSTMNF 78 ROA % is 7.93% as of Mar. 2026, which is 75% above its 10-year median of 4.52. 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 2,665 Metals & Mining companies, Sumitomo Metal Mining Co ranks better than 84.2% on this metric.
ROA % is calculated as Net Income divided by its average Total Assets over a certain period of time. Sumitomo Metal Mining Co's annualizedNet Income for the quarter that ended in Mar. 2026 was $1,717 Mil.
Sumitomo Metal Mining Co's average Total Assets over the quarter that ended in Mar. 2026 was $21,655 Mil. Therefore, Sumitomo Metal Mining Co's annualized ROA % for the quarter that ended in Mar. 2026 was 7.93%.
The historical rank and industry rank for Sumitomo Metal Mining Co's ROA % or its related term are showing as below:
STMNF'
s ROA % Range Over the Past 10 Years
Min: -1.12 Med: 4.52 Max: 13.53
Current: 5.54
During the past 13 years, Sumitomo Metal Mining Co's highest ROA % was 13.53%. The lowest was -1.12%. And the median was 4.52%.
STMNF's ROA % is ranked better than 84.2% of 2665
companies
in the Metals & Mining industry
Industry Median: -16.81
vs STMNF: 5.54
Sumitomo Metal Mining Co (OTCPK:STMNF) ROA % Explanation
ROA % measures the rate of return on the total assets (shareholder equity plus liabilities). It measures a firm's efficiency at generating profits from shareholders' equity plus its liabilities. ROA % shows how well a company uses what it has to generate earnings. ROA %s can vary drastically across industries. Therefore, ROA % should not be used to compare companies in different industries. For retailers, a ROA % of higher than 5% is expected. For example, Wal-Mart (WMT) has a ROA % of about 8% as of 2012. For banks, ROA % is close to their interest spread. A banks ROA % is typically well under 2%.
Similar to ROE, ROA % is affected by profit margins and asset turnover. This can be seen from the Du Pont Formula:
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.
* 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
Like ROE, ROA % is calculated with only 12 months data. Fluctuations in the company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective. ROA % can be affected by events such as stock buyback or issuance, and by goodwill, a company's tax rate and its interest payment. ROA % may not reflect the true earning power of the assets. A more accurate measurement is ROC % (ROC).
Many analysts argue the higher return the better. Buffett states that really high ROA % may indicate vulnerability in the durability of the competitive advantage.
E.g. Raising $43b to take on KO is impossible, but $1.7b to take on Moody's is. Although Moody's ROA % and underlying economics is far superior to Coca Cola, the durability is far weaker because of lower entry cost.
* 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 ROA % Competitor Comparison
For the Other Industrial Metals & Mining subindustry, Sumitomo Metal Mining Co's ROA %, along with its competitors' market caps and ROA % 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 ROA % vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Sumitomo Metal Mining Co's ROA % distribution charts can be found below:
* The bar in red indicates where Sumitomo Metal Mining Co's ROA % 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 ROA %, the net income of the last fiscal year and the average total assets 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.
ROA % is displayed in the 30-year financial page.
Sumitomo Metal Mining Co (STMNF) has a ROA % of 7.93% as of Mar. 2026. Return on assets is the ratio of current-period net income to average two-period total assets. View historical data on Sumitomo Metal Mining Co and its competitors. This is 75% above median its historical median of 4.52. According to the industry distribution chart, Sumitomo Metal Mining Co ranks #421 out of 2665 companies in the Metals & Mining industry, placing it in the top 15.8%.
Is Sumitomo Metal Mining Co's ROA % too high?
Sumitomo Metal Mining Co's current ROA % of 7.93% is 75% above median its 10-year median of 4.52. Based on the distribution chart, Sumitomo Metal Mining Co ranks #421 out of 2665 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 ROA % compare to competitors?
According to the Metals & Mining industry distribution chart, Sumitomo Metal Mining Co ranks #421 out of 2665 companies for ROA %. This places Sumitomo Metal Mining Co in the top 16% 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 ROA % for a Metals & Mining company?
A good ROA % depends on the Metals & Mining industry context. However, ROA % 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 ROA % mean?
A high ROA % can signal that a stock is expensive relative to its fundamentals. Return on assets is the ratio of current-period net income to average two-period total assets. View historical data on Sumitomo Metal Mining Co and its competitors. Sumitomo Metal Mining Co's current ROA % is 7.93%, which is 75% above median its own 10-year median of 4.52. 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 ROA % is 7.93%, which is 75% above median its 10-year median of 4.52. 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 ROA % calculated?
ROA % is calculated from a company's financial statements. For Sumitomo Metal Mining Co (STMNF), the current ROA % is 7.93% 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:
ROA %: 7.93% (75% above median its 10-year median of 4.52)
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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