Allegiant Travel Co (STU:AGH) Cyclically Adjusted Book per Share: €55.14 (As of Jun. 2026)

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STU:AGH Allegiant Travel Co STU:AGH
90 GF Score
Price €73.50
GF Value €68.61
Valuation Fairly Valued
! 4 Warning Signs
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What is Allegiant Travel Co Cyclically Adjusted Book per Share?

Allegiant Travel Co STU:AGH -4.27% 90 Cyclically Adjusted Book per Share is €55.14 as of Jun. 2026. GuruFocus rates STU:AGH with a GF Score™ of 90/100 and a GF Value™ of €68.61 (Fairly Valued). The stock has 4 warning signs investors should review.

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. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and 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.

Allegiant Travel Co's adjusted book value per share for the three months ended in Jun. 2026 was €56.427. 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 €55.14 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Allegiant Travel Co's average Cyclically Adjusted Book Growth Rate was 9.20% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 11.20% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 14.20% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 14.50% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Allegiant Travel Co was 17.00% per year. The lowest was 9.60% per year. And the median was 14.30% per year.

As of today (2026-08-13), Allegiant Travel Co's current stock price is €73.50. Allegiant Travel Co's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was €55.14. Allegiant Travel Co's Cyclically Adjusted PB Ratio of today is 1.33.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Allegiant Travel Co was 9.71. The lowest was 0.73. And the median was 4.34.


Allegiant Travel Co  (STU:AGH) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

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.

Allegiant Travel Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=73.50/55.14
=1.33

* 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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Allegiant Travel Co was 9.71. The lowest was 0.73. And the median was 4.34.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Allegiant Travel Co Cyclically Adjusted Book per Share Related Terms


Allegiant Travel Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Allegiant Travel Co's Cyclically Adjusted Book per Share 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.

Allegiant Travel Co Cyclically Adjusted Book per Share Chart

Allegiant Travel Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 38.30 44.79 47.73 19.76

Allegiant Travel Co Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted Book per Share Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 49.03 48.10 19.76 53.22 55.14

STU:AGH vs JBLU, ULCC, SKYW: Cyclically Adjusted Book per Share Comparison

For the Airlines subindustry, Allegiant Travel Co'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.


Allegiant Travel Co Cyclically Adjusted PB Ratio vs Transportation Industry

For the Transportation industry and Industrials sector, Allegiant Travel Co's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Allegiant Travel Co's Cyclically Adjusted PB Ratio falls into.


STU:AGH
90GF Score
Allegiant Travel Co STU:AGH
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Allegiant Travel Co Cyclically Adjusted Book per Share Calculation

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. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and 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.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted Book per Share.

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.

For example, Allegiant Travel Co's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book= Book Value per Share /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=56.427/333.9520*333.9520
=56.427

Current CPI (Jun. 2026) = 333.9520.

Allegiant Travel Co Quarterly Data

Book Value per Share CPI Adj_Book
201609 23.817 241.428 32.945
201612 26.994 241.432 37.338
201703 28.274 243.801 38.729
201706 25.448 244.955 34.694
201709 24.726 246.819 33.455
201712 29.102 246.524 39.423
201803 30.118 249.554 40.304
201806 34.140 251.989 45.245
201809 34.630 252.439 45.812
201812 37.496 251.233 49.842
201903 40.133 254.202 52.724
201906 43.667 256.143 56.932
201909 46.345 256.759 60.278
201912 48.776 256.974 63.387
202003 45.247 258.115 58.541
202006 40.275 257.797 52.173
202009 37.074 260.280 47.568
202012 35.041 260.474 44.926
202103 36.313 264.877 45.783
202106 52.937 271.696 65.067
202109 56.104 274.310 68.302
202112 59.789 278.802 71.616
202203 61.253 287.504 71.149
202206 64.127 296.311 72.273
202209 65.614 296.808 73.825
202212 63.567 296.797 71.525
202303 65.979 301.836 72.999
202306 68.715 305.109 75.211
202309 68.357 307.789 74.168
202312 66.686 306.746 72.601
202403 66.535 312.332 71.141
202406 67.605 314.175 71.861
202409 63.784 315.301 67.557
202412 56.517 315.605 59.802
202503 56.300 319.799 58.792
202506 49.887 322.561 51.649
202509 47.210 324.800 48.540
202512 48.916 324.054 50.410
202603 51.396 330.213 51.978
202606 56.427 333.952 56.427

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of €55.14 mean?
Allegiant Travel Co (STU:AGH) has a Cyclically Adjusted Book per Share of €55.14 as of Jun. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Allegiant Travel Co and its competitors.
Is Allegiant Travel Co's Cyclically Adjusted Book per Share too high?
Allegiant Travel Co's current Cyclically Adjusted Book per Share is €55.14. Overall, Allegiant Travel Co has a GF Score™ of 90/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Allegiant Travel Co's Cyclically Adjusted Book per Share compare to JBLU and ULCC?
Allegiant Travel Co's Cyclically Adjusted Book per Share of €55.14 can be compared against companies in the Transportation industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for a Transportation company?
A good Cyclically Adjusted Book per Share depends on the Transportation industry context. However, Cyclically Adjusted Book per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Allegiant Travel Co and its competitors. Allegiant Travel Co's current Cyclically Adjusted Book per Share is €55.14. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Allegiant Travel Co stock overvalued right now?
Based on GuruFocus' analysis, Allegiant Travel Co (STU:AGH) is currently considered Fairly Valued. The stock's GF Value™ is €68.61, compared to a current price of €73.50 — trading 7.1% above its estimated fair value. The current Cyclically Adjusted Book per Share is €55.14. Allegiant Travel Co's overall GF Score™ is 90/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Allegiant Travel Co (STU:AGH), the current Cyclically Adjusted Book per Share is €55.14 as of Jun. 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 Allegiant Travel Co (STU:AGH) Overvalued in 2026?

Based on GuruFocus' analysis, Allegiant Travel Co stock appears to be overvalued. The current stock price of €73.50 is trading 7.1% above its estimated GF Value™ of €68.61. GuruFocus considers Allegiant Travel Co to be Fairly Valued.

Key valuation signals for STU:AGH:

  • Cyclically Adjusted Book per Share: €55.14
  • GF Value™: €68.61 vs. price of €73.50 (7.1% above fair value)
  • GF Score™: 90/100 with 4 warning signs

No single metric tells the full story. See the STU:AGH stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Allegiant Travel Co Business Description

Other Exchanges ALGT:USA
Address 1201 North Town Center Drive, Las Vegas, NV, USA, 89144
Allegiant Travel Co is a leisure travel company focused on providing travel and leisure services and products to residents of underserved cities in the United States. It operates a low-cost, low utilization passenger airline marketed to leisure travelers in underserved cities, allowing it to sell air transportation both on a stand-alone basis and bundled with the sale of air-related and third-party services and products. In addition, it provides air transportation under fixed-fee flight arrangements. In connection with its leisure travel focus, the company has opened Sunseeker Resort Charlotte Harbor, equipped with several guestrooms and food and beverage outlets. The company's operating segments are the Airline, which generates the maximum revenue, and Sunseeker Resort.
90GF Score

Get the complete analysis for STU:AGH

Cyclically Adjusted Book per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€73.50
Price
€68.61
GF Value