On September 22, 2026, Core Natural Resources Inc CNR shares rose 3.5% today, with the current price at $93.93. Over the past year, the stock has traded between $73.21 and $114.80, highlighting its volatility.
- GF Value™ verdict: CNR is currently trading at $93.93, which is 3.0% below the GF Value™ estimate of $96.81.
- GF Score™ is 86/100, indicating a strong overall performance across various metrics.
- Notable signal: Insiders sold $7.6 million worth of shares in the past 12 months, with no buying activity.
Is CNR Overvalued or Undervalued?
According to the GF Value™, Core Natural Resources Inc CNR is currently undervalued, trading at a price of $93.93, which is approximately 3.0% below its estimated fair value of $96.81. This suggests a potential opportunity for investors looking for value in the stock. The GF Valuation label indicates that the stock is fairly valued, but the slight discount from the GF Value™ presents a margin of safety for potential buyers. GF Value™ is GuruFocus’ proprietary estimate of intrinsic value, calculated using historical trading multiples, past business performance, and future growth expectations.
While the stock’s current price is below its fair value estimate, caution is warranted due to other factors such as recent insider selling. This could indicate a lack of confidence from company executives, which may offset the apparent undervaluation based on GF Value™.

How Does CNR’s Valuation Compare to Its History?
| Metric | Current | Historical |
|---|---|---|
| P/E (TTM) | 47.4x | 7.1x |
| Forward P/E | 15.3x | – |
CNR’s current P/E ratio of 47.4x is significantly above its 5-year median of 7.1x, representing a staggering 565% increase. This suggests that the stock is trading at a premium compared to its historical valuation. The forward P/E of 15.3x indicates that expectations for future earnings may be more favorable, yet the current P/E analysis largely disagrees with the GF Value™ verdict that suggests the stock is undervalued. This discrepancy highlights the potential for caution among investors.

What Does CNR’s GF Score™ Tell Us?
The GF Score™ evaluates a company’s financial strength, profitability, growth potential, valuation, and momentum. CNR’s GF Score™ of 86/100 is impressive, showcasing strong performance across several metrics. The standout sub-rank is its Valuation Rank of 9/10, indicating that the stock is relatively attractive on a valuation basis despite its high P/E ratio. However, the weakest area is the Momentum Rank of 6/10, suggesting that recent price movements may not be as favorable.
| Metric | Rating |
|---|---|
| GF Score™ | 86 |
| Financial Strength | 7/10 |
| Profitability | 7/10 |
| Growth | 8/10 |
| Valuation | 9/10 |
| Momentum | 6/10 |
CNR’s strong GF Score™ reflects solid financial strength and growth potential, with notable strengths in valuation metrics. However, the momentum ranking suggests that the stock may not be experiencing the best price trends recently, which could affect investor sentiment.
What Are Gurus and Insiders Doing with CNR?
Currently, four gurus hold shares of CNR, with two increasing their positions while three have trimmed their holdings in recent quarters. This mixed signal indicates that while some experts are confident in the stock’s potential, others may be cautious, leading to reductions in their positions.
Insider activity has shown a concerning trend, with $7.6 million in shares sold by insiders over the past year and no buying activity. This pattern may suggest a lack of confidence from those closest to the company, which could influence market perceptions and raise red flags for potential investors.

What This Means for Investors
Based on the analysis of GF Value™, CNR appears to be undervalued at its current price of $93.93 compared to its fair value estimate of $96.81. However, the significant premium represented in the P/E ratio and the recent insider selling indicate that caution may be warranted. Investors should weigh these factors carefully when considering their positions.
For further details, visit the Core Natural Resources Inc CNR stock page for a comprehensive overview.
Frequently Asked Questions
What is CNR’s GF Score™?
CNR’s GF Score™ is 86/100, reflecting a strong overall performance in various metrics, indicating potential for growth and solid valuation.
Is CNR overvalued or undervalued?
CNR is currently undervalued according to the GF Value™, which estimates its fair value at $96.81, suggesting a 3.0% upside from the current price.
What is CNR’s P/E ratio?
CNR’s P/E ratio (TTM) is 47.4x, significantly higher than its 5-year median of 7.1x, indicating it is trading at a substantial premium historically.
This stock alert was generated using automated technology and GuruFocus financial data to provide readers with timely and accurate market reporting. This content was reviewed by GuruFocus editorial team prior to publication. Please send any questions or comments about this story to [email protected].
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