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Alaska Air GroupALK +0.28%75 Shiller PE Ratio is 18.81 as of Aug. 29, 2026, which is 28% above its 10-year median of 14.68. GuruFocus rates ALK with a GF Score™ of 75/100 and a GF Value™ of $63.36 (Possible Value Trap). The stock has 5 warning signs investors should review. Among 599 Transportation companies, Alaska Air Group ranks worse than 52.42% on this metric.
As of today (2026-08-29), Alaska Air Group's current share price is $42.32. Alaska Air Group's E10 for the quarter that ended in Jun. 2026 was $2.25. Alaska Air Group's Shiller PE Ratio for today is 18.81.
The historical rank and industry rank for Alaska Air Group's Shiller PE Ratio or its related term are showing as below:
ALK'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 5 Med: 14.68 Max: 35.09
Current: 18.84
During the past years, Alaska Air Group's highest Shiller PE Ratio was 35.09. The lowest was 5.00. And the median was 14.68.
ALK's Shiller PE Ratio is ranked worse than 52.42% of 599
companies
in the Transportation industry
Industry Median: 18.25
vs ALK: 18.84
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.
Alaska Air Group's adjusted earnings per share data for the three months ended in Jun. 2026 was $-0.680. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $2.25 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Alaska Air Group (NYSE:ALK) 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.
Alaska Air Group Shiller PE Ratio Related Terms
Alaska Air Group Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for Alaska Air Group'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.
ALK vs CPA, SKYW, ALGT: Shiller PE Ratio Comparison
For the Airlines subindustry, Alaska Air 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.
Alaska Air Group Shiller PE Ratio vs Transportation Industry
For the Transportation industry and Industrials sector, Alaska Air Group's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where Alaska Air Group'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.
* 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.
Alaska Air Group's E10 for the quarter that ended in Jun. 2026 is calculated as:
For example, Alaska Air Group'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.
Alaska Air Group (ALK) has a Shiller PE Ratio of 18.81 as of Aug. 29, 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 Alaska Air Group and its competitors. This is 28% above median its historical median of 14.68. Over the past decade, Alaska Air Group's Shiller PE Ratio has ranged from 5.00 to 35.09. According to the industry distribution chart, Alaska Air Group ranks #314 out of 599 companies in the Transportation industry, placing it in the top 52.4%.
Is Alaska Air Group's Shiller PE Ratio too high?
Alaska Air Group's current Shiller PE Ratio of 18.81 is 28% above median its 10-year median of 14.68. Over the past 10 years, this metric has ranged from a low of 5.00 to a high of 35.09. The Transportation industry median Shiller PE Ratio is 18.25. Alaska Air Group's value of 18.81 is 3.1% above this industry median. Based on the distribution chart, Alaska Air Group ranks #314 out of 599 companies in the Transportation industry, which is below the industry midpoint. Overall, Alaska Air Group has a GF Score™ of 75/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Alaska Air Group's Shiller PE Ratio compare to CPA and SKYW?
According to the Transportation industry distribution chart, Alaska Air Group ranks #314 out of 599 companies for Shiller PE Ratio. This places Alaska Air Group in the lower half of its industry. The industry median Shiller PE Ratio is 18.25. Alaska Air Group's value of 18.81 is 3.1% above this benchmark. Historically, Alaska Air Group's own Shiller PE Ratio has ranged from 5.00 to 35.09 over the past decade. While the company's 10-year median is 14.68 vs. the industry median of 18.25, Alaska Air Group 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 a Transportation company?
The median Shiller PE Ratio among Transportation companies is 18.25, based on 599 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. Alaska Air Group's current Shiller PE Ratio of 18.81 is 3.1% 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 Alaska Air Group and its competitors. For the Transportation industry, the median Shiller PE Ratio is 18.25 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Alaska Air Group's current Shiller PE Ratio is 18.81, which is 28% above median its own 10-year median of 14.68. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Alaska Air Group stock overvalued right now?
Based on GuruFocus' analysis, Alaska Air Group (ALK) is currently considered Possible Value Trap. The stock's GF Value™ is $63.36, compared to a current price of $42.32 — trading 33.2% below its estimated fair value. The current Shiller PE Ratio is 18.81, which is 28% above median its 10-year median of 14.68 and 3.1% above the Transportation industry median of 18.25. Alaska Air Group's overall GF Score™ is 75/100 with 5 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 Alaska Air Group (ALK), the current Shiller PE Ratio is 18.81 as of Aug. 29, 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 Alaska Air Group (ALK) Overvalued in 2026?
Based on GuruFocus' analysis, Alaska Air Group stock appears to be undervalued.
The current stock price of $42.32 is trading 33.2% below its estimated GF Value™ of $63.36.
GuruFocus considers Alaska Air Group to be Possible Value Trap.
Key valuation signals for ALK:
Shiller PE Ratio: 18.81 (28% above median its 10-year median of 14.68)
GF Value™: $63.36 vs. price of $42.32 (33.2% below fair value)
Industry Position: 3.1% above the Transportation median (#314 of 599)
No single metric tells the full story. See the ALK stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Alaska Air Group Inc operates two airlines, Alaska and Horizon, in three operating segments. The Alaska Airlines segment includes scheduled air transportation on Alaska's Boeing and Airbus jet aircraft for passengers and cargo throughout the U.S., and in parts of Mexico and Costa Rica. The Regional segment includes Horizon's and other third-party carriers' scheduled air transportation for passengers across a shorter distance network within the U.S. and Canada under capacity purchase agreements. The Hawaiian Airlines segment includes scheduled air transportation on Hawaiian's Boeing and Airbus aircraft for passengers and cargo. It earns revenues from Passenger tickets, including ticket breakage and net of taxes and fees, Passenger ancillary, and Mileage Plan passenger revenue.
75GF Score
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