Ryanair Holdings (HAM:RY4C) Cyclically Adjusted PB Ratio: (As of Sep. 21, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

HAM:RY4C Ryanair Holdings PLC HAM:RY4C
86 GF Score
Price €22.77
GF Value €25.13
Valuation Fairly Valued
! 1 Warning Sign
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What is Ryanair Holdings Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Ryanair Holdings  (HAM:RY4C) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


Ryanair Holdings Cyclically Adjusted PB Ratio Related Terms


Ryanair Holdings Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Ryanair Holdings's Cyclically Adjusted PB 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.

Ryanair Holdings Cyclically Adjusted PB Ratio Chart

Ryanair Holdings Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only - - - - 3.94

Ryanair Holdings Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted PB Ratio 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 - - 4.99 3.92 4.31

HAM:RY4C vs DAL, UAL, LUV: Cyclically Adjusted PB Ratio Comparison

For the Airlines subindustry, Ryanair Holdings'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.


Ryanair Holdings Cyclically Adjusted PB Ratio vs Transportation Industry

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

* The bar in red indicates where Ryanair Holdings's Cyclically Adjusted PB Ratio falls into.


HAM:RY4C
86GF Score
Ryanair Holdings PLC HAM:RY4C
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Ryanair Holdings Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

Ryanair Holdings's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, Ryanair Holdings'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)
=9.123/128.6700*128.6700
=9.123

Current CPI (Jun. 2026) = 128.6700.

Ryanair Holdings Quarterly Data

Book Value per Share CPI Adj_Book
201609 3.722 100.274 4.776
201612 3.940 99.676 5.086
201703 3.632 100.374 4.656
201706 3.536 100.673 4.519
201709 4.002 100.474 5.125
201712 4.058 100.075 5.218
201803 3.816 100.573 4.882
201806 4.181 101.072 5.323
201809 4.805 101.371 6.099
201812 4.302 100.773 5.493
201903 4.601 101.670 5.823
201906 4.689 102.168 5.905
201909 5.716 102.268 7.192
201912 5.673 102.068 7.152
202003 4.512 102.367 5.671
202006 4.284 101.769 5.416
202009 4.424 101.072 5.632
202012 4.146 101.072 5.278
202103 4.119 102.367 5.177
202106 3.960 103.364 4.929
202109 4.371 104.859 5.364
202112 4.350 106.653 5.248
202203 4.888 109.245 5.757
202206 5.469 112.779 6.240
202209 5.862 113.504 6.645
202212 5.526 115.436 6.160
202303 4.956 117.609 5.422
202306 5.401 119.662 5.808
202309 7.400 120.749 7.885
202312 6.906 120.749 7.359
202403 6.679 120.990 7.103
202406 6.932 122.318 7.292
202409 7.089 121.594 7.502
202412 7.558 122.439 7.943
202503 6.614 123.405 6.896
202506 6.973 124.492 7.207
202509 8.493 124.810 8.756
202512 8.363 125.770 8.556
202603 9.676 127.830 9.740
202606 9.123 128.670 9.123

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

Is Ryanair Holdings (HAM:RY4C) Overvalued in 2026?

Based on GuruFocus' analysis, Ryanair Holdings stock appears to be undervalued. The current stock price of €22.77 is trading 9.4% below its estimated GF Value™ of €25.13. GuruFocus considers Ryanair Holdings to be Fairly Valued.

Key valuation signals for HAM:RY4C:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €25.13 vs. price of €22.77 (9.4% below fair value)
  • GF Score™: 86/100 with 1 warning sign

No single metric tells the full story. See the HAM:RY4C stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Ryanair Holdings Business Description

Address Airside Business Park, Swords, County Dublin, Dublin, IRL, K67 NY94
Ryanair is Europe's largest low-cost airline, known for its extensive network and highly efficient business model. Operating over 3,600 flights daily across 240-plus destinations in 40 countries, Ryanair has built its success on offering affordable air travel while maintaining tight control over costs. The airline primarily uses Boeing 737 aircraft, including the newer 737 8-200 "Gamechanger" variant, which simplifies operations and reduces expenses. Ryanair focuses on high passenger volume, ancillary revenue, and operational efficiency, ensuring its position as a leading airline in Europe.
86GF Score

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

€22.77
Price
€25.13
GF Value