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CHIX:IAGl's Shiller PE Ratio is ranked better than 57.14% of 595
companies
in the Transportation industry
Industry Median: 18.37
vs CHIX:IAGl: 16.42
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.
International Consolidated Airlines Group's adjusted earnings per share data for the three months ended in Jun. 2026 was £0.143. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is £0.26 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
International Consolidated Airlines Group (CHIX:IAGl) Shiller PE Ratio Explanation
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.
International Consolidated Airlines Group Shiller PE Ratio Related Terms
International Consolidated Airlines Group Shiller PE Ratio Historical Data
* 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.
International Consolidated Airlines Group Shiller PE Ratio Chart
International Consolidated Airlines Group Annual Data
CHIX:IAGL vs DAL, UAL, LUV: Shiller PE Ratio Comparison
For the Airlines subindustry, International Consolidated Airlines Group'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.
International Consolidated Airlines Group Shiller PE Ratio vs Transportation Industry
International Consolidated Airlines Group Shiller PE Ratio Calculation
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.
* 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.
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.
International Consolidated Airlines Group (CHIX:IAGL) has a Shiller PE Ratio of 16.56 as of Sep. 07, 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 International Consolidated Airlines Group and its competitors. This is 94% above median its historical median of 8.54. Over the past decade, International Consolidated Airlines Group's Shiller PE Ratio has ranged from 5.31 to 18.37. According to the industry distribution chart, International Consolidated Airlines Group ranks #255 out of 595 companies in the Transportation industry, placing it in the top 42.9%.
Is International Consolidated Airlines Group's Shiller PE Ratio too high?
International Consolidated Airlines Group's current Shiller PE Ratio of 16.56 is 94% above median its 10-year median of 8.54. Over the past 10 years, this metric has ranged from a low of 5.31 to a high of 18.37. The Transportation industry median Shiller PE Ratio is 18.37. International Consolidated Airlines Group's value of 16.56 is 9.9% below this industry median. Based on the distribution chart, International Consolidated Airlines Group ranks #255 out of 595 companies in the Transportation industry, which is above the industry midpoint. Overall, International Consolidated Airlines Group has a GF Score™ of 71/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does International Consolidated Airlines Group's Shiller PE Ratio compare to DAL and UAL?
According to the Transportation industry distribution chart, International Consolidated Airlines Group ranks #255 out of 595 companies for Shiller PE Ratio. This puts International Consolidated Airlines Group in the upper half of its industry. The industry median Shiller PE Ratio is 18.37. International Consolidated Airlines Group's value of 16.56 is 9.9% below this benchmark. Historically, International Consolidated Airlines Group's own Shiller PE Ratio has ranged from 5.31 to 18.37 over the past decade. While the company's 10-year median is 8.54 vs. the industry median of 18.37, International Consolidated Airlines Group 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 a Transportation company?
The median Shiller PE Ratio among Transportation companies is 18.37, based on 595 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. International Consolidated Airlines Group's current Shiller PE Ratio of 16.56 is 9.9% 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 International Consolidated Airlines Group and its competitors. For the Transportation industry, the median Shiller PE Ratio is 18.37 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. International Consolidated Airlines Group's current Shiller PE Ratio is 16.56, which is 94% above median its own 10-year median of 8.54. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is International Consolidated Airlines Group stock overvalued right now?
Based on GuruFocus' analysis, International Consolidated Airlines Group (CHIX:IAGL) is currently considered Significantly Overvalued. The stock's GF Value™ is £2.43, compared to a current price of £4.31 — trading 77.2% above its estimated fair value. The current Shiller PE Ratio is 16.56, which is 94% above median its 10-year median of 8.54 and 9.9% below the Transportation industry median of 18.37. International Consolidated Airlines Group's overall GF Score™ is 71/100 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 International Consolidated Airlines Group (CHIX:IAGL), the current Shiller PE Ratio is 16.56 as of Sep. 07, 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 International Consolidated Airlines Group (CHIX:IAGL) Overvalued in 2026?
Based on GuruFocus' analysis, International Consolidated Airlines Group stock appears to be overvalued.
The current stock price of £4.31 is trading 77.2% above its estimated GF Value™ of £2.43.
GuruFocus considers International Consolidated Airlines Group to be Significantly Overvalued.
Key valuation signals for CHIX:IAGL:
Shiller PE Ratio: 16.56 (94% above median its 10-year median of 8.54)
GF Value™: £2.43 vs. price of £4.31 (77.2% above fair value)
Industry Position: 9.9% below the Transportation median (#255 of 595)
No single metric tells the full story. See the CHIX:IAGL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
International Airlines Group is a European airline group flying under the British Airways, Iberia, Aer Lingus, and Vueling brands. The group's main airport hubs are London Heathrow, London Gatwick, Madrid, Barcelona, and Dublin. Geographically, it derives a majority of its revenue from the United Kingdom.
71GF Score
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Shiller PE Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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