Ero CopperERO -5.44%91 Altman Z-Score is 3.41 as of Jun. 24, 2026, which is 24% above its 10-year median of 2.74. GuruFocus rates ERO with a GF Score™ of 91/100 and a GF Value™ of $36.24 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 790 Metals & Mining companies, Ero Copper ranks better than 54.94% on this metric.
The Altman Z-Score is a model designed to predict the likelihood of a company going bankrupt within the next two years. Created by American finance professor Edward Altman in 1968, the model is specifically designed for publicly traded manufacturing companies with assets greater than $1 million.
Good Sign:
Altman Z-score of 3.57 is strong.
Ero Copper has a Altman Z-Score of 3.41, indicating it is in Safe Zones. This implies the Altman Z-Score is strong.
The zones of discrimination were as such:
When Altman Z-Score <= 1.8, it is in Distress Zones.
When Altman Z-Score >= 3, it is in Safe Zones.
When Altman Z-Score is between 1.8 and 3, it is in Grey Zones.
The historical rank and industry rank for Ero Copper's Altman Z-Score or its related term are showing as below:
ERO'
s Altman Z-Score Range Over the Past 10 Years
Min: 0.17 Med: 2.74 Max: 7.11
Current: 3.57
During the past 10 years, Ero Copper's highest Altman Z-Score was 7.11. The lowest was 0.17. And the median was 2.74.
Ero Copper (NYSE:ERO) Altman Z-Score Explanation
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.
X4, Market Value of Equity/Book Value of Total Liabilities (MVE/TL): The measure shows how much the firm's assets can decline in value (measured by market value of equity plus debt) before the liabilities exceed the assets and the firm becomes insolvent.
X5, Revenue/Total Assets (S/TA): The capital-turnover ratio is a standard financial ratio illustrating the sales generating ability of the firm's assets.
Altman Z-Score does not apply to financial companies.
Ero Copper Altman Z-Score Related Terms
Ero Copper Altman Z-Score Historical Data
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The historical data trend for Ero Copper's Altman Z-Score can be seen below:
* 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.
For the Copper subindustry, Ero Copper's Altman Z-Score, along with its competitors' market caps and Altman Z-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.
Ero Copper Altman Z-Score vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Ero Copper's Altman Z-Score distribution charts can be found below:
* The bar in red indicates where Ero Copper's Altman Z-Score falls into.
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.
Ero Copper's Altman Z-Score for today is calculated with this formula:
Z
=
1.2
*
X1
+
1.4
*
X2
+
3.3
*
X3
+
0.6
*
X4
+
1.0
*
X5
=
1.2
*
0.0322
+
1.4
*
0.4153
+
3.3
*
0.1867
+
0.6
*
2.8769
+
1.0
*
0.4496
=
3.41
* 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 Z-Score when X4 or X5 value is 0.
Ero Copper (ERO) has a Altman Z-Score of 3.41 as of Jun. 24, 2026. The Altman Z-score measures a company's bankruptcy risk. View historical data on Ero Copper and its competitors. This is 24% above median its historical median of 2.74. Over the past decade, Ero Copper's Altman Z-Score has ranged from 0.17 to 7.11. According to the industry distribution chart, Ero Copper ranks #356 out of 790 companies in the Metals & Mining industry, placing it in the top 45.1%.
Is Ero Copper's Altman Z-Score too high?
Ero Copper's current Altman Z-Score of 3.41 is 24% above median its 10-year median of 2.74. Over the past 10 years, this metric has ranged from a low of 0.17 to a high of 7.11. The Metals & Mining industry median Altman Z-Score is 3.45. Ero Copper's value of 3.41 is 1% below this industry median. Based on the distribution chart, Ero Copper ranks #356 out of 790 companies in the Metals & Mining industry, which is above the industry midpoint. Overall, Ero Copper has a GF Score™ of 91/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Ero Copper's Altman Z-Score compare to SCCO and FCX?
According to the Metals & Mining industry distribution chart, Ero Copper ranks #356 out of 790 companies for Altman Z-Score. This puts Ero Copper in the upper half of its industry. The industry median Altman Z-Score is 3.45. Ero Copper's value of 3.41 is 1% below this benchmark. Historically, Ero Copper's own Altman Z-Score has ranged from 0.17 to 7.11 over the past decade. While the company's 10-year median is 2.74 vs. the industry median of 3.45, Ero Copper 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 Altman Z-Score for a Metals & Mining company?
The median Altman Z-Score among Metals & Mining companies is 3.45, based on 790 companies in the industry. Companies in the top quartile (top 25%) have a Altman Z-Score significantly above this median, while those in the bottom quartile fall well below. However, Altman Z-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Ero Copper's current Altman Z-Score of 3.41 is 1% 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 Altman Z-Score mean?
A high Altman Z-Score can signal that a stock is expensive relative to its fundamentals. The Altman Z-score measures a company's bankruptcy risk. View historical data on Ero Copper and its competitors. For the Metals & Mining industry, the median Altman Z-Score is 3.45 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ero Copper's current Altman Z-Score is 3.41, which is 24% above median its own 10-year median of 2.74. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ero Copper stock overvalued right now?
Based on GuruFocus' analysis, Ero Copper (ERO) is currently considered Modestly Undervalued. The stock's GF Value™ is $36.24, compared to a current price of $26.24 — trading 27.6% below its estimated fair value. The current Altman Z-Score is 3.41, which is 24% above median its 10-year median of 2.74 and 1% below the Metals & Mining industry median of 3.45. Ero Copper's overall GF Score™ is 91/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Altman Z-Score calculated?
Altman Z-Score is calculated from a company's financial statements. For Ero Copper (ERO), the current Altman Z-Score is 3.41 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 Ero Copper (ERO) Overvalued in 2026?
Based on GuruFocus' analysis, Ero Copper stock appears to be undervalued.
The current stock price of $26.24 is trading 27.6% below its estimated GF Value™ of $36.24.
GuruFocus considers Ero Copper to be Modestly Undervalued.
Key valuation signals for ERO:
Altman Z-Score: 3.41 (24% above median its 10-year median of 2.74)
GF Value™: $36.24 vs. price of $26.24 (27.6% below fair value)
Industry Position: 1% below the Metals & Mining median (#356 of 790)
No single metric tells the full story. See the ERO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Ero Copper Corp is a high-margin, high-growth copper producer with operations in Brazil. Its primary asset is its 99.6% ownership interest in Mineracao Caraiba S.A., held indirectly through its wholly-owned subsidiary. The company also owns a 97.6% ownership interest in NX Gold S.A. indirectly through its wholly-owned subsidiary. Its reporting segments include its three operating mines in Brazil, the Caraiba Operations, the Tucuma Operation, and the Xavantina Operations, and its corporate head office in Canada.
91GF Score
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