Sumitomo Metal Mining CoSTMNF 78 Altman Z2-Score is 4.39 as of Jun. 24, 2026, which is 10% below its 10-year median of 4.89. 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 2,618 Metals & Mining companies, Sumitomo Metal Mining Co ranks better than 59.51% on this metric.
Altman Z2-Score, also known as Z"-Score, is used to predict the likelihood that a non-manufacturing company (excluding property/financial company) will face bankruptcy within a two-year period.
Good Sign:
Sumitomo Metal Mining Co has a Altman Z2-Score of 4.39, indicating it is in Safe Zones. This implies the Altman Z2-Score is strong.
The zones of discrimination were as such:
When Altman Z2-Score <= 1.1, it is in Distress Zones.
When Altman Z2-Score >= 2.6, it is in Safe Zones.
When Altman Z2-Score is between 1.1 and 2.6, it is in Grey Zones.
The historical rank and industry rank for Sumitomo Metal Mining Co's Altman Z2-Score or its related term are showing as below:
STMNF'
s Altman Z2-Score Range Over the Past 10 Years
Min: 4.38 Med: 4.89 Max: 6.42
Current: 4.38
During the past 13 years, Sumitomo Metal Mining Co's highest Altman Z2-Score was 6.42. The lowest was 4.38. And the median was 4.89.
Sumitomo Metal Mining Co (OTCPK:STMNF) Altman Z2-Score Explanation
The original Z-Score model was based on publicly traded manufacturing companies while the Z2-Score, also known as Z"-score can be used for any type of company excluding property/financial companies. Both Z-Score and Z2-Score describes the financial health of a company, and its likelihood of financial distress.
X1: The Working Capital/Total Assets (WC/TA) ratio is a measure of the net liquid assets of the firm relative to the total capitalization. Working capital is defined as the difference between current assets and current liabilities. Ordinarily, a firm experiencing consistent operating losses will have shrinking current assets in relation to total assets. Altman found this one proved to be the most valuable liquidity ratio comparing with the current ratio and the quick ratio. This is however the least significant of the five factors.
X2: Retained Earnings/Total Assets: the RE/TA ratio measures the leverage of a firm. Retained earnings is the account which reports the total amount of reinvested earnings and/or losses of a firm over its entire life. Those firms with high RE, relative to TA, have financed their assets through retention of profits and have not utilized as much debt.
X3, Earnings Before Interest and Taxes/Total Assets (EBIT/TA): This ratio is a measure of the true productivity of the firm's assets, independent of any tax or leverage factors. Since a firm's ultimate existence is based on the earning power of its assets, this ratio appears to be particularly appropriate for studies dealing with corporate failure. This ratio continually outperforms other profitability measures, including cash flow.
* 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 Altman Z2-Score Competitor Comparison
For the Other Industrial Metals & Mining subindustry, Sumitomo Metal Mining Co's Altman Z2-Score, along with its competitors' market caps and Altman Z2-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 Altman Z2-Score vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Sumitomo Metal Mining Co's Altman Z2-Score distribution charts can be found below:
* The bar in red indicates where Sumitomo Metal Mining Co's Altman Z2-Score falls into.
Sumitomo Metal Mining Co Altman Z2-Score Calculation
Altman Z-Score model is an accurate forecaster of failure up to two years prior to distress. It can be considered the assessment of the distress of industrial corporations.
Z2-Score, also known as Z"-Score is the Z-Score for non-manufacturing companies excluding property/financial companies.
* 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. GuruFocus does not calculate Altman Z2-Score when X4_2 value is 0.
Sumitomo Metal Mining Co (STMNF) has a Altman Z2-Score of 4.39 as of Jun. 24, 2026. Z2-Score is the Z-Score for non-manufacturing companies excluding property/financial companies, which measures a company's bankruptcy risk. View historical data on Sumitomo Metal Mining Co and its competitors. This is 10% below median its historical median of 4.89. Over the past decade, Sumitomo Metal Mining Co's Altman Z2-Score has ranged from 4.38 to 6.42. According to the industry distribution chart, Sumitomo Metal Mining Co ranks #1060 out of 2618 companies in the Metals & Mining industry, placing it in the top 40.5%.
Is Sumitomo Metal Mining Co's Altman Z2-Score too high?
Sumitomo Metal Mining Co's current Altman Z2-Score of 4.39 is 10% below median its 10-year median of 4.89. Over the past 10 years, this metric has ranged from a low of 4.38 to a high of 6.42. The Metals & Mining industry median Altman Z2-Score is 2.14. Sumitomo Metal Mining Co's value of 4.39 is 105.6% above this industry median. Based on the distribution chart, Sumitomo Metal Mining Co ranks #1060 out of 2618 companies in the Metals & Mining industry, which is above 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 Altman Z2-Score compare to competitors?
According to the Metals & Mining industry distribution chart, Sumitomo Metal Mining Co ranks #1060 out of 2618 companies for Altman Z2-Score. This puts Sumitomo Metal Mining Co in the upper half of its industry. The industry median Altman Z2-Score is 2.14. Sumitomo Metal Mining Co's value of 4.39 is 105.6% above this benchmark. Historically, Sumitomo Metal Mining Co's own Altman Z2-Score has ranged from 4.38 to 6.42 over the past decade. While the company's 10-year median is 4.89 vs. the industry median of 2.14, 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 Altman Z2-Score for a Metals & Mining company?
The median Altman Z2-Score among Metals & Mining companies is 2.14, based on 2,618 companies in the industry. Companies in the top quartile (top 25%) have a Altman Z2-Score significantly above this median, while those in the bottom quartile fall well below. However, Altman Z2-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sumitomo Metal Mining Co's current Altman Z2-Score of 4.39 is 105.6% 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 Altman Z2-Score mean?
A high Altman Z2-Score can signal that a stock is expensive relative to its fundamentals. Z2-Score is the Z-Score for non-manufacturing companies excluding property/financial companies, which measures a company's bankruptcy risk. View historical data on Sumitomo Metal Mining Co and its competitors. For the Metals & Mining industry, the median Altman Z2-Score is 2.14 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sumitomo Metal Mining Co's current Altman Z2-Score is 4.39, which is 10% below median its own 10-year median of 4.89. 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 Altman Z2-Score is 4.39, which is 10% below median its 10-year median of 4.89 and 105.6% above the Metals & Mining industry median of 2.14. 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 Altman Z2-Score calculated?
Altman Z2-Score is calculated from a company's financial statements. For Sumitomo Metal Mining Co (STMNF), the current Altman Z2-Score is 4.39 as of Jun. 24, 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:
Altman Z2-Score: 4.39 (10% below median its 10-year median of 4.89)
GF Value™: $39.25 vs. price of $48.99 (24.8% above fair value)
Industry Position: 105.6% above the Metals & Mining median (#1060 of 2618)
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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