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Sumitomo Metal Mining CoSTMNF 80 Debt-to-Equity is 0.32 as of Mar. 2026, which is at its 10-year median of 0.32. GuruFocus rates STMNF with a GF Score™ of 80/100 and a GF Value™ of $39.51 (Fairly Valued). The stock has 7 warning signs investors should review. Among 1,222 Metals & Mining companies, Sumitomo Metal Mining Co ranks worse than 64.48% on this metric.
A high debt to equity ratio generally means that a company has been aggressive in financing its growth with debt. This can result in volatile earnings as a result of the additional interest expense.
The historical rank and industry rank for Sumitomo Metal Mining Co's Debt-to-Equity or its related term are showing as below:
STMNF'
s Debt-to-Equity Range Over the Past 10 Years
Min: 0.23 Med: 0.32 Max: 0.52
Current: 0.32
During the past 13 years, the highest Debt-to-Equity Ratio of Sumitomo Metal Mining Co was 0.52. The lowest was 0.23. And the median was 0.32.
STMNF's Debt-to-Equity is ranked worse than 64.48% of 1222
companies
in the Metals & Mining industry
Industry Median: 0.15
vs STMNF: 0.32
Sumitomo Metal Mining Co (OTCPK:STMNF) Debt-to-Equity Explanation
Because a company can increase its ROE % by having more financial leverage, it is important to watch the leverage ratio when investing in high ROE % companies.
Sumitomo Metal Mining Co Debt-to-Equity Related Terms
Sumitomo Metal Mining Co Debt-to-Equity Historical 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.
Sumitomo Metal Mining Co Debt-to-Equity Competitor Comparison
For the Other Industrial Metals & Mining subindustry, Sumitomo Metal Mining Co's Debt-to-Equity, along with its competitors' market caps and Debt-to-Equity 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 Debt-to-Equity vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Sumitomo Metal Mining Co's Debt-to-Equity distribution charts can be found below:
* The bar in red indicates where Sumitomo Metal Mining Co's Debt-to-Equity 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.
Sumitomo Metal Mining Co (STMNF) has a Debt-to-Equity of 0.32 as of Mar. 2026. Debt-to-Equity ratio represents the ratio of total debt to total company equity. View historical data on Sumitomo Metal Mining Co and its competitors. This is near median its historical median of 0.32. Over the past decade, Sumitomo Metal Mining Co's Debt-to-Equity has ranged from 0.23 to 0.52. According to the industry distribution chart, Sumitomo Metal Mining Co ranks #788 out of 1222 companies in the Metals & Mining industry, placing it in the top 64.5%.
Is Sumitomo Metal Mining Co's Debt-to-Equity too high?
Sumitomo Metal Mining Co's current Debt-to-Equity of 0.32 is near median its 10-year median of 0.32. Over the past 10 years, this metric has ranged from a low of 0.23 to a high of 0.52. The Metals & Mining industry median Debt-to-Equity is 0.15. Sumitomo Metal Mining Co's value of 0.32 is 113.3% above this industry median. Based on the distribution chart, Sumitomo Metal Mining Co ranks #788 out of 1222 companies in the Metals & Mining industry, which is below the industry midpoint. Overall, Sumitomo Metal Mining Co has a GF Score™ of 80/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Sumitomo Metal Mining Co's Debt-to-Equity compare to competitors?
According to the Metals & Mining industry distribution chart, Sumitomo Metal Mining Co ranks #788 out of 1222 companies for Debt-to-Equity. This places Sumitomo Metal Mining Co in the lower half of its industry. The industry median Debt-to-Equity is 0.15. Sumitomo Metal Mining Co's value of 0.32 is 113.3% above this benchmark. Historically, Sumitomo Metal Mining Co's own Debt-to-Equity has ranged from 0.23 to 0.52 over the past decade. While the company's 10-year median is 0.32 vs. the industry median of 0.15, Sumitomo Metal Mining Co has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Debt-to-Equity for a Metals & Mining company?
The median Debt-to-Equity among Metals & Mining companies is 0.15, based on 1,222 companies in the industry. Companies in the top quartile (top 25%) have a Debt-to-Equity significantly above this median, while those in the bottom quartile fall well below. However, Debt-to-Equity should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sumitomo Metal Mining Co's current Debt-to-Equity of 0.32 is 113.3% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Debt-to-Equity mean?
A high Debt-to-Equity can signal that a stock is expensive relative to its fundamentals. Debt-to-Equity ratio represents the ratio of total debt to total company equity. View historical data on Sumitomo Metal Mining Co and its competitors. For the Metals & Mining industry, the median Debt-to-Equity is 0.15 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sumitomo Metal Mining Co's current Debt-to-Equity is 0.32, which is near median its own 10-year median of 0.32. 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 Fairly Valued. The stock's GF Value™ is $39.51, compared to a current price of $43.43 — trading 9.9% above its estimated fair value. The current Debt-to-Equity is 0.32, which is near median its 10-year median of 0.32 and 113.3% above the Metals & Mining industry median of 0.15. Sumitomo Metal Mining Co's overall GF Score™ is 80/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Debt-to-Equity calculated?
Debt-to-Equity is calculated from a company's financial statements. For Sumitomo Metal Mining Co (STMNF), the current Debt-to-Equity is 0.32 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 $43.43 is trading 9.9% above its estimated GF Value™ of $39.51.
GuruFocus considers Sumitomo Metal Mining Co to be Fairly Valued.
Key valuation signals for STMNF:
Debt-to-Equity: 0.32 (near median its 10-year median of 0.32)
GF Value™: $39.51 vs. price of $43.43 (9.9% above fair value)
Industry Position: 113.3% above the Metals & Mining median (#788 of 1222)
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.
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