ERG SpAMIL:ERG -0.52%76 Cyclically Adjusted PB Ratio is 1.59 as of Jul. 12, 2026, which is 4% below its 10-year median of 1.66. GuruFocus rates MIL:ERG with a GF Score™ of 76/100 and a GF Value™ of €24.45 (Fairly Valued). The stock has 5 warning signs investors should review. Among 284 Utilities - Independent Power Producers companies, ERG SpA ranks worse than 59.51% on this metric.
As of today (2026-07-12), ERG SpA's current share price is €23.02. ERG SpA's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was €14.45. ERG SpA's Cyclically Adjusted PB Ratio for today is 1.59.
The historical rank and industry rank for ERG SpA's Cyclically Adjusted PB Ratio or its related term are showing as below:
MIL:ERG'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 1.02 Med: 1.66 Max: 2.61
Current: 1.59
During the past years, ERG SpA's highest Cyclically Adjusted PB Ratio was 2.61. The lowest was 1.02. And the median was 1.66.
MIL:ERG's Cyclically Adjusted PB Ratio is ranked worse than 59.51% of 284
companies
in the Utilities - Independent Power Producers industry
Industry Median: 1.13
vs MIL:ERG: 1.59
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 SpA's adjusted book value per share data for the three months ended in Mar. 2026 was €14.055. 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 €14.45 for the trailing ten years ended in Mar. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
ERG SpA (MIL:ERG) Cyclically Adjusted PB Ratio Explanation
Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.
ERG SpA Cyclically Adjusted PB Ratio Related Terms
ERG SpA Cyclically Adjusted PB Ratio Historical Data
* Premium members only.
The historical data trend for ERG SpA's Cyclically Adjusted PB Ratio 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 SpA Cyclically Adjusted PB Ratio Competitor Comparison
For the Utilities - Renewable subindustry, ERG SpA'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 SpA Cyclically Adjusted PB Ratio vs Utilities - Independent Power Producers Industry
For the Utilities - Independent Power Producers industry and Utilities sector, ERG SpA's Cyclically Adjusted PB Ratio distribution charts can be found below:
* The bar in red indicates where ERG SpA's Cyclically Adjusted PB Ratio falls into.
Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.
ERG SpA's Cyclically Adjusted PB Ratio for today 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.
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.
What does a Cyclically Adjusted PB Ratio of 1.59 mean?
ERG SpA (MIL:ERG) has a Cyclically Adjusted PB Ratio of 1.59 as of Jul. 12, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on ERG SpA and its competitors. This is near median its historical median of 1.66. Over the past decade, ERG SpA's Cyclically Adjusted PB Ratio has ranged from 1.02 to 2.61. According to the industry distribution chart, ERG SpA ranks #169 out of 284 companies in the Utilities - Independent Power Producers industry, placing it in the top 59.5%.
Is ERG SpA's Cyclically Adjusted PB Ratio too high?
ERG SpA's current Cyclically Adjusted PB Ratio of 1.59 is near median its 10-year median of 1.66. Over the past 10 years, this metric has ranged from a low of 1.02 to a high of 2.61. The Utilities - Independent Power Producers industry median Cyclically Adjusted PB Ratio is 1.13. ERG SpA's value of 1.59 is 40.7% above this industry median. Based on the distribution chart, ERG SpA ranks #169 out of 284 companies in the Utilities - Independent Power Producers industry, which is below the industry midpoint. Overall, ERG SpA has a GF Score™ of 76/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does ERG SpA's Cyclically Adjusted PB Ratio compare to competitors?
According to the Utilities - Independent Power Producers industry distribution chart, ERG SpA ranks #169 out of 284 companies for Cyclically Adjusted PB Ratio. This places ERG SpA in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.13. ERG SpA's value of 1.59 is 40.7% above this benchmark. Historically, ERG SpA's own Cyclically Adjusted PB Ratio has ranged from 1.02 to 2.61 over the past decade. While the company's 10-year median is 1.66 vs. the industry median of 1.13, ERG SpA 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 Cyclically Adjusted PB Ratio for an Utilities - Independent Power Producers company?
The median Cyclically Adjusted PB Ratio among Utilities - Independent Power Producers companies is 1.13, based on 284 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. ERG SpA's current Cyclically Adjusted PB Ratio of 1.59 is 40.7% 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 Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on ERG SpA and its competitors. For the Utilities - Independent Power Producers industry, the median Cyclically Adjusted PB Ratio is 1.13 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. ERG SpA's current Cyclically Adjusted PB Ratio is 1.59, which is near median its own 10-year median of 1.66. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is ERG SpA stock overvalued right now?
Based on GuruFocus' analysis, ERG SpA (MIL:ERG) is currently considered Fairly Valued. The stock's GF Value™ is €24.45, compared to a current price of €23.02 — trading 5.8% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 1.59, which is near median its 10-year median of 1.66 and 40.7% above the Utilities - Independent Power Producers industry median of 1.13. ERG SpA's overall GF Score™ is 76/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For ERG SpA (MIL:ERG), the current Cyclically Adjusted PB Ratio is 1.59 as of Jul. 12, 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 SpA (MIL:ERG) Overvalued in 2026?
Based on GuruFocus' analysis, ERG SpA stock appears to be undervalued.
The current stock price of €23.02 is trading 5.8% below its estimated GF Value™ of €24.45.
GuruFocus considers ERG SpA to be Fairly Valued.
Key valuation signals for MIL:ERG:
Cyclically Adjusted PB Ratio: 1.59 (near median its 10-year median of 1.66)
GF Value™: €24.45 vs. price of €23.02 (5.8% below fair value)
Industry Position: 40.7% above the Utilities - Independent Power Producers median (#169 of 284)
No single metric tells the full story. See the MIL:ERG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
ERG SpA produces electricity from clean, renewable, and sustainable sources. Its energy comes from the combination of natural resources such as wind and sun. The company produces wind power, and electricity as a hydroelectric operator to markets across Europe. Electricity is also generated from natural gas operations located in Italy. ERG's wind power production is handled by subsidiary ENG Renew which focuses on developing, building, and operating wind assets. Hydropower and natural gas operations are split off into ERG Power Generation. The company's hydro assets include plants, dams, reservoirs, and a pumping station. Electricity from the plant is either fed into Italy's national grid or used to power other industrial plants.
76GF Score
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