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ThalesSTU:CSF -0.94%85 Shiller PE Ratio is 47.20 as of Aug. 23, 2026, which is 44% above its 10-year median of 32.81. GuruFocus rates STU:CSF with a GF Score™ of 85/100 and a GF Value™ of €211.75 (Modestly Overvalued). The stock has 2 warning signs investors should review. Among 161 Aerospace & Defense companies, Thales ranks better than 58.39% on this metric.
As of today (2026-08-23), Thales's current share price is €253.00. Thales's E10 for the fiscal year that ended in Dec25 was €5.36. Thales's Shiller PE Ratio for today is 47.20.
The historical rank and industry rank for Thales's Shiller PE Ratio or its related term are showing as below:
STU:CSF'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 16.63 Med: 32.81 Max: 53.77
Current: 46.39
During the past 13 years, Thales's highest Shiller PE Ratio was 53.77. The lowest was 16.63. And the median was 32.81.
STU:CSF's Shiller PE Ratio is ranked better than 58.39% of 161
companies
in the Aerospace & Defense industry
Industry Median: 58.65
vs STU:CSF: 46.39
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.
Thales's adjusted earnings per share data of for the fiscal year that ended in Dec25 was €8.130. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is €5.36 for the trailing ten years ended in Dec25.
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.
Thales Shiller PE Ratio Related Terms
Thales Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for Thales'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.
STU:CSF vs SPCX, GE, RTX: Shiller PE Ratio Comparison
For the Aerospace & Defense subindustry, Thales'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.
Thales Shiller PE Ratio vs Aerospace & Defense Industry
For the Aerospace & Defense industry and Industrials sector, Thales's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where Thales'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.
Thales'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.
Thales's E10 for the fiscal year that ended in Dec25 is calculated as:
For example, Thales's adjusted earnings per share data for the fiscal year that ended in Dec25 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.
Thales (STU:CSF) has a Shiller PE Ratio of 47.20 as of Aug. 23, 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 Thales and its competitors. This is 44% above median its historical median of 32.81. Over the past decade, Thales' Shiller PE Ratio has ranged from 16.63 to 53.77. According to the industry distribution chart, Thales ranks #67 out of 161 companies in the Aerospace & Defense industry, placing it in the top 41.6%.
Is Thales' Shiller PE Ratio too high?
Thales' current Shiller PE Ratio of 47.20 is 44% above median its 10-year median of 32.81. Over the past 10 years, this metric has ranged from a low of 16.63 to a high of 53.77. The Aerospace & Defense industry median Shiller PE Ratio is 58.65. Thales' value of 47.20 is 19.5% below this industry median. Based on the distribution chart, Thales ranks #67 out of 161 companies in the Aerospace & Defense industry, which is above the industry midpoint. Overall, Thales has a GF Score™ of 85/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Thales' Shiller PE Ratio compare to SPCX and GE?
According to the Aerospace & Defense industry distribution chart, Thales ranks #67 out of 161 companies for Shiller PE Ratio. This puts Thales in the upper half of its industry. The industry median Shiller PE Ratio is 58.65. Thales' value of 47.20 is 19.5% below this benchmark. Historically, Thales' own Shiller PE Ratio has ranged from 16.63 to 53.77 over the past decade. While the company's 10-year median is 32.81 vs. the industry median of 58.65, Thales has consistently been below 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 Aerospace & Defense company?
The median Shiller PE Ratio among Aerospace & Defense companies is 58.65, based on 161 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. Thales's current Shiller PE Ratio of 47.20 is 19.5% below 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 Thales and its competitors. For the Aerospace & Defense industry, the median Shiller PE Ratio is 58.65 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Thales's current Shiller PE Ratio is 47.20, which is 44% above median its own 10-year median of 32.81. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Thales stock overvalued right now?
Based on GuruFocus' analysis, Thales (STU:CSF) is currently considered Modestly Overvalued. The stock's GF Value™ is €211.75, compared to a current price of €253.00 — trading 19.5% above its estimated fair value. The current Shiller PE Ratio is 47.20, which is 44% above median its 10-year median of 32.81 and 19.5% below the Aerospace & Defense industry median of 58.65. Thales' overall GF Score™ is 85/100 with 2 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 Thales (STU:CSF), the current Shiller PE Ratio is 47.20 as of Aug. 23, 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 Thales (STU:CSF) Overvalued in 2026?
Based on GuruFocus' analysis, Thales stock appears to be overvalued.
The current stock price of €253.00 is trading 19.5% above its estimated GF Value™ of €211.75.
GuruFocus considers Thales to be Modestly Overvalued.
Key valuation signals for STU:CSF:
Shiller PE Ratio: 47.20 (44% above median its 10-year median of 32.81)
GF Value™: €211.75 vs. price of €253.00 (19.5% above fair value)
Industry Position: 19.5% below the Aerospace & Defense median (#67 of 161)
No single metric tells the full story. See the STU:CSF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Thales is a French aerospace and defense industrial and one of Europe's largest defense contractors. The company has three segments: defense and security provides sensors, mission systems, communications, and control systems to European and export defense customers; aerospace sells avionics and satellites to the civil, defense, and governmental markets; and digital identity and security provides biometric, data, and identity security solutions, payments services, and the manufacturing of SIM cards.
85GF Score
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