Sumitomo Metal Mining CoSTMNF 78 Gross Margin % is 20.89% as of Mar. 2026, which is 33% above its 10-year median of 15.66. 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 730 Metals & Mining companies, Sumitomo Metal Mining Co ranks worse than 65.62% on this metric.
STMNF's Gross Margin % is ranked worse than 65.62% of 730
companies
in the Metals & Mining industry
Industry Median: 26.045
vs STMNF: 15.76
Sumitomo Metal Mining Co had a gross margin of 20.89% for the quarter that ended in Mar. 2026 => Competition eroding margins
The 5-Year average Growth Rate of Gross Margin for Sumitomo Metal Mining Co was -15.10% per year.
Sumitomo Metal Mining Co (OTCPK:STMNF) Gross Margin % Explanation
Warren Buffett believes that firms with excellent long term economics tend to have consistently higher margins.
Durable competitive advantage creates a high Gross Margin % because of the freedom to price in excess of cost. Companies can be categorized by their Gross Margin %
1. Greater than 40% = Durable competitive advantage
2. Less than 40% = Competition eroding margins
3. Less than 20% = no sustainable competitive advantage
Consistency of Gross Margin is key
Sumitomo Metal Mining Co had a gross margin of 20.89% for the quarter that ended in Mar. 2026 => Competition eroding margins
Be Aware
If a company loses its competitive advantages, usually its gross margin declines well before its sales declines. Watching Gross Margin % and Operating Margin % closely helps avoid value trap situations.
Sumitomo Metal Mining Co Gross Margin % Related Terms
Sumitomo Metal Mining Co Gross Margin % 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 Gross Margin % Competitor Comparison
For the Other Industrial Metals & Mining subindustry, Sumitomo Metal Mining Co's Gross Margin %, along with its competitors' market caps and Gross Margin % 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 Gross Margin % vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Sumitomo Metal Mining Co's Gross Margin % distribution charts can be found below:
* The bar in red indicates where Sumitomo Metal Mining Co's Gross Margin % 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.
A positive Gross Profit is only the first step for a company to make a net profit. The gross profit needs to be big enough to also cover related labor, equipment, rental, marketing/advertising, research and development and a lot of other costs in selling the products.
Sumitomo Metal Mining Co (STMNF) has a Gross Margin % of 20.89% as of Mar. 2026. Gross margin is the ratio of total gross profit to net sales. View historical data on Sumitomo Metal Mining Co and its competitors. This is 33% above median its historical median of 15.66. Over the past decade, Sumitomo Metal Mining Co's Gross Margin % has ranged from 3.67 to 20.47. According to the industry distribution chart, Sumitomo Metal Mining Co ranks #479 out of 730 companies in the Metals & Mining industry, placing it in the top 65.6%.
Is Sumitomo Metal Mining Co's Gross Margin % too high?
Sumitomo Metal Mining Co's current Gross Margin % of 20.89% is 33% above median its 10-year median of 15.66. Over the past 10 years, this metric has ranged from a low of 3.67 to a high of 20.47. The Metals & Mining industry median Gross Margin % is 26.05. Sumitomo Metal Mining Co's value of 20.89% is 19.8% below this industry median. Based on the distribution chart, Sumitomo Metal Mining Co ranks #479 out of 730 companies in the Metals & Mining industry, which is below the industry midpoint. 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 Gross Margin % compare to competitors?
According to the Metals & Mining industry distribution chart, Sumitomo Metal Mining Co ranks #479 out of 730 companies for Gross Margin %. This places Sumitomo Metal Mining Co in the lower half of its industry. The industry median Gross Margin % is 26.05. Sumitomo Metal Mining Co's value of 20.89% is 19.8% below this benchmark. Historically, Sumitomo Metal Mining Co's own Gross Margin % has ranged from 3.67 to 20.47 over the past decade. While the company's 10-year median is 15.66 vs. the industry median of 26.05, Sumitomo Metal Mining Co has consistently been below 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 Gross Margin % for a Metals & Mining company?
The median Gross Margin % among Metals & Mining companies is 26.05, based on 730 companies in the industry. Companies in the top quartile (top 25%) have a Gross Margin % significantly above this median, while those in the bottom quartile fall well below. However, Gross Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sumitomo Metal Mining Co's current Gross Margin % of 20.89% is 19.8% below 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 Gross Margin % mean?
A high Gross Margin % can signal that a stock is expensive relative to its fundamentals. Gross margin is the ratio of total gross profit to net sales. View historical data on Sumitomo Metal Mining Co and its competitors. For the Metals & Mining industry, the median Gross Margin % is 26.05 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sumitomo Metal Mining Co's current Gross Margin % is 20.89%, which is 33% above median its own 10-year median of 15.66. 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 Gross Margin % is 20.89%, which is 33% above median its 10-year median of 15.66 and 19.8% below the Metals & Mining industry median of 26.05. 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 Gross Margin % calculated?
Gross Margin % is calculated from a company's financial statements. For Sumitomo Metal Mining Co (STMNF), the current Gross Margin % is 20.89% 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:
Gross Margin %: 20.89% (33% above median its 10-year median of 15.66)
GF Value™: $39.25 vs. price of $48.99 (24.8% above fair value)
Industry Position: 19.8% below the Metals & Mining median (#479 of 730)
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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