STMNF (Sumitomo Metal Mining Co) Moat Score: 6/10 (As of Jun. 27, 2026)


STMNF Sumitomo Metal Mining Co Ltd STMNF
75 GF Score
Price $48.99
GF Value $35.20
Valuation Significantly Overvalued
! 6 Warning Signs
View Full Analysis

What is Sumitomo Metal Mining Co Moat Score?

Sumitomo Metal Mining Co STMNF 75 Moat Score is 6 as of Jun. 27, 2026. GuruFocus rates STMNF with a GF Score™ of 75/100 and a GF Value™ of $35.20 (Significantly Overvalued). The stock has 6 warning signs investors should review. Among 2,615 Metals & Mining companies, Sumitomo Metal Mining Co ranks better than 99.73% on this metric.

Sumitomo Metal Mining Co has the Moat Score of 6, which implies that the company might have Narrow Moat - Strong narrow moat, clearly distinguishable but not wide.

Sumitomo Metal Mining Co has Narrow Moat: Sumitomo Metal Mining has a strong narrow moat due to its significant market share in metal mining, economies of scale, and valuable intellectual property. However, it lacks the robust network effects and customer switching costs needed for a wide moat.

Moat Score is a ranking system developed by GuruFocus to assess a company's ability to sustain a competitive advantage, rated on a scale from 0 to 10. It takes into account key factors such as market leadership, cost advantages, network effects, customer switching costs, and more.

The company's Moat Score is based on these criteria:

1. Market leadership and sustainable market share
2. Network effects and significant customer switching costs
3. Valuable intellectual property and patents
4. Strong brand strength and deep customer loyalty
5. Durable cost advantages (e.g., economies of scale, proprietary technology)
6. Significant regulatory barriers and exclusive licenses
7. Superior distribution network
8. Strong and sustainable pricing power
9. Consistent and impactful innovation and R&D capabilities

Based on the research, GuruFocus believes Sumitomo Metal Mining Co might have Narrow Moat - Strong narrow moat, clearly distinguishable but not wide.

Sumitomo Metal Mining Co  (OTCPK:STMNF) Moat Score Explanation

The Moat Score ranges from 0 to 10, with 10 as the highest. GuruFocus divided Moat Score into following 8 categories:

Moat Score Moat Level
10Wide Moat - Exceptionally dominant and durable wide moat
8 - 9Wide Moat - Clear and robust wide moat
7Wide Moat - Entry-level wide moat, clearly possessing durable advantages
6Narrow Moat - Strong narrow moat, clearly distinguishable but not wide
5Narrow Moat - Solid narrow moat
4Narrow Moat - Discernible but modest moat
1 - 3No Moat - Very weak/transient advantages
0No Moat - No discernible moat

Sumitomo Metal Mining Co Moat Score Related Terms

Sumitomo Metal Mining Co Moat Score Competitor Comparison

For the Other Industrial Metals & Mining subindustry, Sumitomo Metal Mining Co's Moat Score, along with its competitors' market caps and Moat 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 Moat Score vs Metals & Mining Industry

For the Metals & Mining industry and Basic Materials sector, Sumitomo Metal Mining Co's Moat Score distribution charts can be found below:

* The bar in red indicates where Sumitomo Metal Mining Co's Moat Score falls into.


STMNF
75GF Score
Sumitomo Metal Mining Co Ltd STMNF
Moat Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis
Frequently Asked Questions Learn more about Moat Score →
What does a Moat Score of 6 mean?
Sumitomo Metal Mining Co (STMNF) has a Moat Score of 6 as of Jun. 27, 2026. Moat Score is a ranking system developed by GuruFocus to assess a company's ability to sustain a competitive advantage, rated on a scale from 0 to 10. It takes into account key factors such as market leadership, cost advantages, network effects, customer switching costs, and more. According to the industry distribution chart, Sumitomo Metal Mining Co ranks #7 out of 2615 companies in the Metals & Mining industry, placing it in the top 0.3%.
Is Sumitomo Metal Mining Co's Moat Score too high?
Sumitomo Metal Mining Co's current Moat Score is 6. The Metals & Mining industry median Moat Score is 1.00. Sumitomo Metal Mining Co's value of 6 is 500% above this industry median. Based on the distribution chart, Sumitomo Metal Mining Co ranks #7 out of 2615 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 75/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sumitomo Metal Mining Co's Moat Score compare to competitors?
According to the Metals & Mining industry distribution chart, Sumitomo Metal Mining Co ranks #7 out of 2615 companies for Moat Score. This places Sumitomo Metal Mining Co in the top 0% of its industry — outperforming the majority of peers. The industry median Moat Score is 1.00. Sumitomo Metal Mining Co's value of 6 is 500% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Moat Score for a Metals & Mining company?
The median Moat Score among Metals & Mining companies is 1.00, based on 2,615 companies in the industry. Companies in the top quartile (top 25%) have a Moat Score significantly above this median, while those in the bottom quartile fall well below. However, Moat Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sumitomo Metal Mining Co's current Moat Score of 6 is 500% 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 Moat Score mean?
A high Moat Score can signal that a stock is expensive relative to its fundamentals. Moat Score is a ranking system developed by GuruFocus to assess a company's ability to sustain a competitive advantage, rated on a scale from 0 to 10. It takes into account key factors such as market leadership, cost advantages, network effects, customer switching costs, and more. For the Metals & Mining industry, the median Moat Score is 1.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sumitomo Metal Mining Co's current Moat Score is 6. 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 Moat Score is 6 and 500% above the Metals & Mining industry median of 1.00. 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 Moat Score calculated?
Moat Score is calculated from a company's financial statements. For Sumitomo Metal Mining Co (STMNF), the current Moat Score is 6 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:

  • Moat Score: 6
  • GF Value™: $35.20 vs. price of $48.99 (39.2% above fair value)
  • GF Score™: 75/100 with 6 warning signs
  • Industry Position: 500% above the Metals & Mining median (#7 of 2615)

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 Business Description

Address 5-11-3 Shinbashi, Shinbashi Sumitomo Building, Minato-ku, Tokyo, JPN, 105-8716
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

Moat Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$48.99
Price
$35.20
GF Value