American Airlines Group (MEX:AAL) Cyclically Adjusted PB Ratio: (As of Sep. 22, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
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.

MEX:AAL American Airlines Group Inc MEX:AAL
65 GF Score
Price MXN232.99
GF Value MXN260.30
Valuation Modestly Undervalued
! 4 Warning Signs
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What is American Airlines Group Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


American Airlines Group  (MEX:AAL) 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.


American Airlines Group Cyclically Adjusted PB Ratio Related Terms


American Airlines Group Cyclically Adjusted PB Ratio Historical Data

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The historical data trend for American Airlines Group'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.

American Airlines Group Cyclically Adjusted PB Ratio Chart

American Airlines Group Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
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American Airlines Group Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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MEX:AAL vs CPA, ALK, SKYW: Cyclically Adjusted PB Ratio Comparison

For the Airlines subindustry, American Airlines Group'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.


American Airlines Group Cyclically Adjusted PB Ratio vs Transportation Industry

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

* The bar in red indicates where American Airlines Group's Cyclically Adjusted PB Ratio falls into.


MEX:AAL
65GF Score
American Airlines Group Inc MEX:AAL
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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American Airlines Group 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.

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

For example, American Airlines Group'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)
=-104.853/333.9520*333.9520
=-104.853

Current CPI (Jun. 2026) = 333.9520.

American Airlines Group Quarterly Data

Book Value per Share CPI Adj_Book
201609 163.689 241.428 226.421
201612 153.711 241.432 212.615
201703 131.336 243.801 179.900
201706 137.884 244.955 187.980
201709 149.360 246.819 202.088
201712 -32.094 246.524 -43.476
201803 -39.757 249.554 -53.203
201806 -37.092 251.989 -49.157
201809 -23.061 252.439 -30.507
201812 -7.226 251.233 -9.605
201903 -27.772 254.202 -36.485
201906 -0.949 256.143 -1.237
201909 7.212 256.759 9.380
201912 -5.204 256.974 -6.763
202003 -146.230 258.115 -189.194
202006 -143.988 257.797 -186.523
202009 -239.941 260.280 -307.856
202012 -220.166 260.474 -282.273
202103 -253.454 264.877 -319.550
202106 -235.778 271.696 -289.804
202109 -235.976 274.310 -287.283
202112 -231.908 278.802 -277.782
202203 -274.491 287.504 -318.837
202206 -261.504 296.311 -294.723
202209 -244.218 296.808 -274.781
202212 -173.685 296.797 -195.428
202303 -159.618 301.836 -176.602
202306 -115.118 305.109 -126.000
202309 -136.581 307.789 -148.191
202312 -134.643 306.746 -146.585
202403 -139.349 312.332 -148.995
202406 -132.169 314.175 -140.489
202409 -144.799 315.301 -153.364
202412 -125.756 315.605 -133.067
202503 -139.846 319.799 -146.035
202506 -110.810 322.561 -114.723
202509 -110.040 324.800 -113.141
202512 -101.483 324.054 -104.583
202603 -111.214 330.213 -112.473
202606 -104.853 333.952 -104.853

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 American Airlines Group (MEX:AAL) Overvalued in 2026?

Based on GuruFocus' analysis, American Airlines Group stock appears to be undervalued. The current stock price of MXN232.99 is trading 10.5% below its estimated GF Value™ of MXN260.30. GuruFocus considers American Airlines Group to be Modestly Undervalued.

Key valuation signals for MEX:AAL:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: MXN260.30 vs. price of MXN232.99 (10.5% below fair value)
  • GF Score™: 65/100 with 4 warning signs

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


American Airlines Group Business Description

Address 1 Skyview Drive, Fort Worth, TX, USA, 76155
American Airlines is the world's largest airline by aircraft, capacity, and scheduled revenue passenger miles. Its major US hubs are Dallas/Fort Worth, Charlotte, Chicago, Los Angeles, Miami, New York, Philadelphia, Phoenix, and Washington, D.C. It generates over 30% of US airline revenue connecting Latin America with destinations in the United States. After completing a major fleet renewal, the company has the youngest average fleet of US legacy carriers.
65GF Score

Get the complete analysis for MEX:AAL

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

MXN232.99
Price
MXN260.30
GF Value