Core Natural Resources (FRA:C9X0) Cyclically Adjusted Book per Share: €32.17 (As of Mar. 2026)

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FRA:C9X0 Core Natural Resources Inc FRA:C9X0
78 GF Score
Price €73.12
GF Value €81.03
Valuation Modestly Undervalued
! 4 Warning Signs
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What is Core Natural Resources Cyclically Adjusted Book per Share?

Core Natural Resources FRA:C9X0 +0.86% 78 Cyclically Adjusted Book per Share is €32.17 as of Mar. 2026. GuruFocus rates FRA:C9X0 with a GF Score™ of 78/100 and a GF Value™ of €81.03 (Modestly Undervalued). The stock has 4 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

Core Natural Resources's adjusted book value per share for the three months ended in Mar. 2026 was €62.551. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is €32.17 for the trailing ten years ended in Mar. 2026.

Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

As of today (2026-07-15), Core Natural Resources's current stock price is €73.12. Core Natural Resources's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was €32.17. Core Natural Resources's Cyclically Adjusted PB Ratio of today is 2.27.

During the past 12 years, the highest Cyclically Adjusted PB Ratio of Core Natural Resources was 3.40. The lowest was 2.27. And the median was 2.61.


Core Natural Resources  (FRA:C9X0) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Core Natural Resources's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=73.12/32.17
=2.27

* 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.

During the past 12 years, the highest Cyclically Adjusted PB Ratio of Core Natural Resources was 3.40. The lowest was 2.27. And the median was 2.61.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Core Natural Resources Cyclically Adjusted Book per Share Related Terms


Core Natural Resources Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Core Natural Resources's Cyclically Adjusted Book per Share 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.

Core Natural Resources Cyclically Adjusted Book per Share Chart

Core Natural Resources Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 28.43

Core Natural Resources Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted Book per Share Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.00 0.00 28.15 28.43 32.17

FRA:C9X0 vs ARLP, BTU, NRP: Cyclically Adjusted Book per Share Comparison

For the Thermal Coal subindustry, Core Natural Resources's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB Ratio 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 Cyclically Adjusted PB Ratio vs Other Energy Sources Industry

For the Other Energy Sources industry and Energy sector, Core Natural Resources's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Core Natural Resources's Cyclically Adjusted PB Ratio falls into.


FRA:C9X0
78GF Score
Core Natural Resources Inc FRA:C9X0
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Core Natural Resources Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted Book per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

For example, Core Natural Resources's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=62.551/330.2130*330.2130
=62.551

Current CPI (Mar. 2026) = 330.2130.

Core Natural Resources Quarterly Data

Book Value per Share CPI Adj_Book
201606 0.000 241.018 0.000
201609 0.000 241.428 0.000
201612 22.229 241.432 30.403
201703 22.051 243.801 29.867
201706 21.709 244.955 29.265
201709 19.671 246.819 26.317
201712 6.170 246.524 8.265
201803 7.738 249.554 10.239
201806 9.689 251.989 12.697
201809 9.888 252.439 12.934
201812 13.133 251.233 17.262
201903 13.783 254.202 17.904
201906 15.206 256.143 19.603
201909 15.933 256.759 20.491
201912 15.103 256.974 19.407
202003 15.278 258.115 19.546
202006 14.571 257.797 18.664
202009 13.895 260.280 17.628
202012 13.370 260.474 16.950
202103 14.250 264.877 17.765
202106 14.268 271.696 17.341
202109 11.946 274.310 14.381
202112 17.269 278.802 20.453
202203 17.433 287.504 20.023
202206 21.639 296.311 24.115
202209 26.544 296.808 29.531
202212 31.673 296.797 35.239
202303 35.320 301.836 38.641
202306 37.689 305.109 40.790
202309 39.365 307.789 42.233
202312 41.188 306.746 44.339
202403 43.467 312.332 45.955
202406 45.462 314.175 47.783
202409 46.883 315.301 49.100
202412 50.928 315.605 53.285
202503 68.459 319.799 70.688
202506 63.447 322.561 64.952
202509 62.861 324.800 63.909
202512 61.623 324.054 62.794
202603 62.551 330.213 62.551

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of €32.17 mean?
Core Natural Resources (FRA:C9X0) has a Cyclically Adjusted Book per Share of €32.17 as of Mar. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Core Natural Resources and its competitors.
Is Core Natural Resources' Cyclically Adjusted Book per Share too high?
Core Natural Resources' current Cyclically Adjusted Book per Share is €32.17. Overall, Core Natural Resources has a GF Score™ of 78/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Core Natural Resources' Cyclically Adjusted Book per Share compare to ARLP and BTU?
Core Natural Resources' Cyclically Adjusted Book per Share of €32.17 can be compared against companies in the Other Energy Sources industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for an Other Energy Sources company?
A good Cyclically Adjusted Book per Share depends on the Other Energy Sources industry context. However, Cyclically Adjusted Book per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Core Natural Resources and its competitors. Core Natural Resources's current Cyclically Adjusted Book per Share is €32.17. 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 (FRA:C9X0) is currently considered Modestly Undervalued. The stock's GF Value™ is €81.03, compared to a current price of €73.12 — trading 9.8% below its estimated fair value. The current Cyclically Adjusted Book per Share is €32.17. Core Natural Resources' overall GF Score™ is 78/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Core Natural Resources (FRA:C9X0), the current Cyclically Adjusted Book per Share is €32.17 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 (FRA:C9X0) Overvalued in 2026?

Based on GuruFocus' analysis, Core Natural Resources stock appears to be undervalued. The current stock price of €73.12 is trading 9.8% below its estimated GF Value™ of €81.03. GuruFocus considers Core Natural Resources to be Modestly Undervalued.

Key valuation signals for FRA:C9X0:

  • Cyclically Adjusted Book per Share: €32.17
  • GF Value™: €81.03 vs. price of €73.12 (9.8% below fair value)
  • GF Score™: 78/100 with 4 warning signs

No single metric tells the full story. See the FRA:C9X0 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Core Natural Resources Business Description

Other Exchanges CNR:USAC9X0:Germany
Address 275 Technology Drive, Suite 101, Canonsburg, PA, USA, 15317-9565
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.
78GF Score

Get the complete analysis for FRA:C9X0

Cyclically Adjusted Book per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€73.12
Price
€81.03
GF Value