ERG (WAR:ERG) Cyclically Adjusted Book per Share: zł67.58 (As of Mar. 2026)

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Director of Data and Quant Analytics at GuruFocus
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Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

WAR:ERG ERG SA WAR:ERG
59 GF Score
Price zł44.00
GF Value zł40.36
Valuation Fairly Valued
! 4 Warning Signs
View Full Analysis

What is ERG Cyclically Adjusted Book per Share?

ERG WAR:ERG 59 Cyclically Adjusted Book per Share is zł67.58 as of Mar. 2026. GuruFocus rates WAR:ERG with a GF Score™ of 59/100 and a GF Value™ of zł40.36 (Fairly Valued). 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.

ERG's adjusted book value per share for the three months ended in Mar. 2026 was zł56.050. 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 zł67.58 for the trailing ten years ended in Mar. 2026.

During the past 12 months, ERG's average Cyclically Adjusted Book Growth Rate was 2.70% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 4.40% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 8.20% per year. 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.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of ERG was 10.90% per year. The lowest was 3.30% per year. And the median was 7.40% per year.

As of today (2026-08-07), ERG's current stock price is zł44.00. ERG's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was zł67.58. ERG's Cyclically Adjusted PB Ratio of today is 0.65.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of ERG was 1.35. The lowest was 0.49. And the median was 0.85.


ERG  (WAR:ERG) 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.

ERG's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=44.00/67.58
=0.65

* 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 13 years, the highest Cyclically Adjusted PB Ratio of ERG was 1.35. The lowest was 0.49. And the median was 0.85.


Be Aware

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


ERG Cyclically Adjusted Book per Share Related Terms


ERG Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for ERG'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.

ERG Cyclically Adjusted Book per Share Chart

ERG 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 49.40 57.98 61.84 64.89 65.95

ERG 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 65.80 65.92 66.02 65.95 67.58

WAR:ERG vs ORLY, AZO, GPC: Cyclically Adjusted Book per Share Comparison

For the Auto Parts subindustry, ERG'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.


ERG Cyclically Adjusted PB Ratio vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, ERG's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


WAR:ERG
59GF Score
ERG SA WAR:ERG
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

ERG 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, ERG'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)
=56.05/163.0700*163.0700
=56.050

Current CPI (Mar. 2026) = 163.0700.

ERG Quarterly Data

Book Value per Share CPI Adj_Book
201606 43.430 99.552 71.140
201609 45.352 99.064 74.654
201612 46.097 100.366 74.896
201703 45.958 101.018 74.189
201706 45.171 101.180 72.801
201709 46.157 101.343 74.271
201712 45.569 102.564 72.452
201803 46.597 102.564 74.086
201806 47.588 103.378 75.066
201809 48.274 103.378 76.148
201812 44.783 103.785 70.364
201903 45.062 104.274 70.471
201906 45.321 105.983 69.733
201909 45.806 105.983 70.479
201912 45.675 107.123 69.530
202003 47.178 109.076 70.532
202006 48.295 109.402 71.987
202009 49.309 109.320 73.553
202012 47.899 109.565 71.290
202103 46.726 112.658 67.635
202106 48.211 113.960 68.987
202109 49.759 115.588 70.199
202112 50.214 119.088 68.759
202203 0.000 125.031 0.000
202206 52.526 131.705 65.035
202209 53.747 135.531 64.668
202212 54.422 139.113 63.794
202303 55.953 145.950 62.516
202306 59.074 147.009 65.528
202309 57.026 146.113 63.644
202312 57.041 147.741 62.959
202403 57.726 149.044 63.159
202406 57.623 150.997 62.230
202409 57.698 153.439 61.320
202412 56.136 154.660 59.188
202503 55.348 157.021 57.480
202506 56.868 157.509 58.876
202509 56.635 158.000 58.452
202512 56.008 158.320 57.688
202603 56.050 163.070 56.050

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 zł67.58 mean?
ERG (WAR:ERG) has a Cyclically Adjusted Book per Share of zł67.58 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 ERG and its competitors.
Is ERG's Cyclically Adjusted Book per Share too high?
ERG's current Cyclically Adjusted Book per Share is zł67.58. Overall, ERG has a GF Score™ of 59/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does ERG's Cyclically Adjusted Book per Share compare to ORLY and AZO?
ERG's Cyclically Adjusted Book per Share of zł67.58 can be compared against companies in the Vehicles & Parts 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 a Vehicles & Parts company?
A good Cyclically Adjusted Book per Share depends on the Vehicles & Parts 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 ERG and its competitors. ERG's current Cyclically Adjusted Book per Share is zł67.58. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is ERG stock overvalued right now?
Based on GuruFocus' analysis, ERG (WAR:ERG) is currently considered Fairly Valued. The stock's GF Value™ is zł40.36, compared to a current price of zł44.00 — trading 9% above its estimated fair value. The current Cyclically Adjusted Book per Share is zł67.58. ERG's overall GF Score™ is 59/100 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 ERG (WAR:ERG), the current Cyclically Adjusted Book per Share is zł67.58 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 ERG (WAR:ERG) Overvalued in 2026?

Based on GuruFocus' analysis, ERG stock appears to be overvalued. The current stock price of zł44.00 is trading 9% above its estimated GF Value™ of zł40.36. GuruFocus considers ERG to be Fairly Valued.

Key valuation signals for WAR:ERG:

  • Cyclically Adjusted Book per Share: zł67.58
  • GF Value™: zł40.36 vs. price of zł44.00 (9% above fair value)
  • GF Score™: 59/100 with 4 warning signs

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


ERG Business Description

Address Chemiczna 6, Dabrowa Gornicza, POL, 42-520
ERG SA is engaged in producing various types of films and injection products. The products offerings of the company include Bags for packing rubber, Bags for clothing packaging, Breakfast bags, Garbage bags, Sanitary wastes, Battery casings, Transport boxes, Masking tape, and Self-adhesive PP printed tape among others.
59GF Score

Get the complete analysis for WAR:ERG

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

zł44.00
Price
zł40.36
GF Value