Core Natural ResourcesCNR +2.12%81 Days Inventory is 33.09 as of Mar. 2026, which is 53% below its 10-year median of 71.13. GuruFocus rates CNR with a GF Score™ of 81/100 and a GF Value™ of $95.63 (Modestly Undervalued). The stock has 4 warning signs investors should review. Among 120 Other Energy Sources companies, Core Natural Resources ranks worse than 55% on this metric.
Inventory Turnover measures how fast the company turns over its inventory within a year.
Core Natural Resources's Inventory Turnover for the
three
months ended in Mar. 2026 was 2.76.
Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.
Core Natural Resources's Inventory-to-Revenue for the
three
months ended in Mar. 2026 was 0.34.
Core Natural Resources (NYSE:CNR) Days Inventory Explanation
Days Inventory indicates the liquidity of the inventory. Generally, a lower Days Inventory is preferred as it indicates a shorter duration to clear off the inventory. An increase of the ratio may indicate the company's sales slowed. Similar ratios related to Days Inventory are:
1. Inventory Turnover measures how fast the company turns over its inventory within a year.
Core Natural Resources's Inventory Turnover for the
three
months ended in Mar. 2026 is calculated as
2. Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.
Core Natural Resources's Inventory to Revenue for the
three
months ended in Mar. 2026 is calculated as
* 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.
Be Aware
A lot of business are seasonable. It makes more sense to compare Days Inventory from the same period in the previous year instead of from the previous quarter.
Core Natural Resources Days Inventory Related Terms
Core Natural Resources Days Inventory Historical Data
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The historical data trend for Core Natural Resources's Days Inventory 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 Thermal Coal subindustry, Core Natural Resources's Days Inventory, along with its competitors' market caps and Days Inventory 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.
Core Natural Resources Days Inventory vs Other Energy Sources Industry
For the Other Energy Sources industry and Energy sector, Core Natural Resources's Days Inventory distribution charts can be found below:
* The bar in red indicates where Core Natural Resources's Days Inventory 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.
Core Natural Resources (CNR) has a Days Inventory of 33.09 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Core Natural Resources and its competitors. This is 53% below median its historical median of 71.13. Over the past decade, Core Natural Resources' Days Inventory has ranged from 17.41 to 83.81. According to the industry distribution chart, Core Natural Resources ranks #66 out of 120 companies in the Other Energy Sources industry, placing it in the top 55%.
Is Core Natural Resources' Days Inventory too high?
Core Natural Resources' current Days Inventory of 33.09 is 53% below median its 10-year median of 71.13. Over the past 10 years, this metric has ranged from a low of 17.41 to a high of 83.81. The Other Energy Sources industry median Days Inventory is 29.44. Core Natural Resources' value of 33.09 is 12.4% above this industry median. Based on the distribution chart, Core Natural Resources ranks #66 out of 120 companies in the Other Energy Sources industry, which is below the industry midpoint. Overall, Core Natural Resources has a GF Score™ of 81/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Core Natural Resources' Days Inventory compare to ARLP and BTU?
According to the Other Energy Sources industry distribution chart, Core Natural Resources ranks #66 out of 120 companies for Days Inventory. This places Core Natural Resources in the lower half of its industry. The industry median Days Inventory is 29.44. Core Natural Resources' value of 33.09 is 12.4% above this benchmark. Historically, Core Natural Resources' own Days Inventory has ranged from 17.41 to 83.81 over the past decade. While the company's 10-year median is 71.13 vs. the industry median of 29.44, Core Natural Resources 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 Days Inventory for an Other Energy Sources company?
The median Days Inventory among Other Energy Sources companies is 29.44, based on 120 companies in the industry. Companies in the top quartile (top 25%) have a Days Inventory significantly above this median, while those in the bottom quartile fall well below. However, Days Inventory should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Core Natural Resources's current Days Inventory of 33.09 is 12.4% 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 Days Inventory mean?
A high Days Inventory can signal that a stock is expensive relative to its fundamentals. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Core Natural Resources and its competitors. For the Other Energy Sources industry, the median Days Inventory is 29.44 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Core Natural Resources's current Days Inventory is 33.09, which is 53% below median its own 10-year median of 71.13. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Core Natural Resources stock overvalued right now?
Based on GuruFocus' analysis, Core Natural Resources (CNR) is currently considered Modestly Undervalued. The stock's GF Value™ is $95.63, compared to a current price of $79.34 — trading 17% below its estimated fair value. The current Days Inventory is 33.09, which is 53% below median its 10-year median of 71.13 and 12.4% above the Other Energy Sources industry median of 29.44. Core Natural Resources' overall GF Score™ is 81/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Days Inventory calculated?
Days Inventory is calculated from a company's financial statements. For Core Natural Resources (CNR), the current Days Inventory is 33.09 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 Core Natural Resources (CNR) Overvalued in 2026?
Based on GuruFocus' analysis, Core Natural Resources stock appears to be undervalued.
The current stock price of $79.34 is trading 17% below its estimated GF Value™ of $95.63.
GuruFocus considers Core Natural Resources to be Modestly Undervalued.
Key valuation signals for CNR:
Days Inventory: 33.09 (53% below median its 10-year median of 71.13)
GF Value™: $95.63 vs. price of $79.34 (17% below fair value)
Industry Position: 12.4% above the Other Energy Sources median (#66 of 120)
No single metric tells the full story. See the CNR stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Core Natural Resources Inc is a producer and exporter of metallurgical and thermal coal. The company owns and operates longwall mining operations in the nation and export terminals on the Eastern seaboard. The activities of the company involves mining of thermal coal, power generation, and other related activities.
81GF Score
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