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A2A SpACHIX:A2AM +2.67%85 Shiller PE Ratio is 18.22 as of Sep. 12, 2026, which is 49% below its 10-year median of 35.96. GuruFocus rates CHIX:A2AM with a GF Score™ of 85/100 and a GF Value™ of €2.47 (Fairly Valued). The stock has 4 warning signs investors should review. Among 397 Utilities - Regulated companies, A2A SpA ranks worse than 54.16% on this metric.
As of today (2026-09-12), A2A SpA's current share price is €2.369. A2A SpA's E10 for the quarter that ended in Jun. 2026 was €0.13. A2A SpA's Shiller PE Ratio for today is 18.22.
The historical rank and industry rank for A2A SpA's Shiller PE Ratio or its related term are showing as below:
CHIX:A2Am'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 17.25 Med: 35.96 Max: 196.65
Current: 18.17
During the past years, A2A SpA's highest Shiller PE Ratio was 196.65. The lowest was 17.25. And the median was 35.96.
CHIX:A2Am's Shiller PE Ratio is ranked worse than 54.16% of 397
companies
in the Utilities - Regulated industry
Industry Median: 16.82
vs CHIX:A2Am: 18.17
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.
A2A SpA's adjusted earnings per share data for the three months ended in Jun. 2026 was €0.047. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is €0.13 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.
Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.
Be Aware
Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.
A2A SpA Shiller PE Ratio Related Terms
A2A SpA Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for A2A SpA's Shiller PE 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.
For the Utilities - Diversified subindustry, A2A SpA's Shiller PE Ratio, along with its competitors' market caps and Shiller PE 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.
A2A SpA Shiller PE Ratio vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, A2A SpA's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where A2A SpA's Shiller PE Ratio falls into.
For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.
A2A SpA's Shiller PE 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.
A2A SpA's E10 for the quarter that ended in Jun. 2026 is calculated as:
For example, A2A SpA's adjusted earnings per share data for the three months ended in Jun. 2026 was:
Add all the adjusted EPS together and divide 10 will get our E10.
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.
A2A SpA (CHIX:A2AM) has a Shiller PE Ratio of 18.22 as of Sep. 12, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on A2A SpA and its competitors. This is 49% below median its historical median of 35.96. Over the past decade, A2A SpA's Shiller PE Ratio has ranged from 17.25 to 196.65. According to the industry distribution chart, A2A SpA ranks #215 out of 397 companies in the Utilities - Regulated industry, placing it in the top 54.2%.
Is A2A SpA's Shiller PE Ratio too high?
A2A SpA's current Shiller PE Ratio of 18.22 is 49% below median its 10-year median of 35.96. Over the past 10 years, this metric has ranged from a low of 17.25 to a high of 196.65. The Utilities - Regulated industry median Shiller PE Ratio is 16.82. A2A SpA's value of 18.22 is 8.3% above this industry median. Based on the distribution chart, A2A SpA ranks #215 out of 397 companies in the Utilities - Regulated industry, which is below the industry midpoint. Overall, A2A SpA has a GF Score™ of 85/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does A2A SpA's Shiller PE Ratio compare to SRE?
According to the Utilities - Regulated industry distribution chart, A2A SpA ranks #215 out of 397 companies for Shiller PE Ratio. This places A2A SpA in the lower half of its industry. The industry median Shiller PE Ratio is 16.82. A2A SpA's value of 18.22 is 8.3% above this benchmark. Historically, A2A SpA's own Shiller PE Ratio has ranged from 17.25 to 196.65 over the past decade. While the company's 10-year median is 35.96 vs. the industry median of 16.82, A2A 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 Shiller PE Ratio for an Utilities - Regulated company?
The median Shiller PE Ratio among Utilities - Regulated companies is 16.82, based on 397 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. A2A SpA's current Shiller PE Ratio of 18.22 is 8.3% 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 Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on A2A SpA and its competitors. For the Utilities - Regulated industry, the median Shiller PE Ratio is 16.82 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. A2A SpA's current Shiller PE Ratio is 18.22, which is 49% below median its own 10-year median of 35.96. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is A2A SpA stock overvalued right now?
Based on GuruFocus' analysis, A2A SpA (CHIX:A2AM) is currently considered Fairly Valued. The stock's GF Value™ is €2.47, compared to a current price of €2.37 — trading 4.1% below its estimated fair value. The current Shiller PE Ratio is 18.22, which is 49% below median its 10-year median of 35.96 and 8.3% above the Utilities - Regulated industry median of 16.82. A2A SpA's overall GF Score™ is 85/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For A2A SpA (CHIX:A2AM), the current Shiller PE Ratio is 18.22 as of Sep. 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 A2A SpA (CHIX:A2AM) Overvalued in 2026?
Based on GuruFocus' analysis, A2A SpA stock appears to be undervalued.
The current stock price of €2.37 is trading 4.1% below its estimated GF Value™ of €2.47.
GuruFocus considers A2A SpA to be Fairly Valued.
Key valuation signals for CHIX:A2AM:
Shiller PE Ratio: 18.22 (49% below median its 10-year median of 35.96)
GF Value™: €2.47 vs. price of €2.37 (4.1% below fair value)
Industry Position: 8.3% above the Utilities - Regulated median (#215 of 397)
No single metric tells the full story. See the CHIX:A2AM stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
A2A SpA together with its subsidiaries is engaged in the production, sale, and distribution of electricity; sale and distribution of gas; production, distribution, and sale of heat through district heating networks, technical consultancy relating to energy efficiency certificates, waste management (from collection and sweeping to disposal) and the construction and management of integrated waste disposal plants and systems, also making these available for other operators, and integrated water cycle management.
85GF Score
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