Southwest Airlines Co (MEX:LUV) Cyclically Adjusted Book per Share: MXN380.88 (As of Mar. 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:LUV Southwest Airlines Co MEX:LUV
67 GF Score
Price MXN839.00
GF Value MXN738.09
Valuation Modestly Overvalued
! 3 Warning Signs
View Full Analysis

What is Southwest Airlines Co Cyclically Adjusted Book per Share?

Southwest Airlines Co MEX:LUV 67 Cyclically Adjusted Book per Share is MXN380.88 as of Mar. 2026. GuruFocus rates MEX:LUV with a GF Score™ of 67/100 and a GF Value™ of MXN738.09 (Modestly Overvalued). The stock has 3 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.

Southwest Airlines Co's adjusted book value per share for the three months ended in Mar. 2026 was MXN252.455. 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 MXN380.88 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Southwest Airlines Co's average Cyclically Adjusted Book Growth Rate was 3.10% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 4.70% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 7.10% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 8.10% 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 Southwest Airlines Co was 17.00% per year. The lowest was 2.90% per year. And the median was 9.20% per year.

As of today (2026-07-15), Southwest Airlines Co's current stock price is MXN839.00. Southwest Airlines Co's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was MXN380.88. Southwest Airlines Co's Cyclically Adjusted PB Ratio of today is 2.20.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Southwest Airlines Co was 6.18. The lowest was 1.23. And the median was 2.89.


Southwest Airlines Co  (MEX:LUV) 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.

Southwest Airlines Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=839.00/380.88
=2.20

* 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 Southwest Airlines Co was 6.18. The lowest was 1.23. And the median was 2.89.


Be Aware

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


Southwest Airlines Co Cyclically Adjusted Book per Share Related Terms


Southwest Airlines Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Southwest Airlines 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.

Southwest Airlines Co Cyclically Adjusted Book per Share Chart

Southwest Airlines 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 317.98 330.31 314.56 390.64 353.19

Southwest Airlines Co Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 401.43 367.05 363.36 353.19 380.88

MEX:LUV vs AAL, UAL, CPA: Cyclically Adjusted Book per Share Comparison

For the Airlines subindustry, Southwest Airlines 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.


Southwest Airlines Co Cyclically Adjusted PB Ratio vs Transportation Industry

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

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


MEX:LUV
67GF Score
Southwest Airlines Co MEX:LUV
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Southwest Airlines 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, Southwest Airlines Co's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=252.455/330.2130*330.2130
=252.455

Current CPI (Mar. 2026) = 330.2130.

Southwest Airlines Co Quarterly Data

Book Value per Share CPI Adj_Book
201606 233.199 241.018 319.500
201609 252.751 241.428 345.700
201612 282.898 241.432 386.927
201703 255.492 243.801 346.048
201706 257.597 244.955 347.255
201709 268.613 246.819 359.371
201712 321.713 246.524 430.927
201803 300.260 249.554 397.308
201806 342.809 251.989 449.226
201809 337.737 252.439 441.790
201812 350.095 251.233 460.154
201903 347.437 254.202 451.327
201906 355.219 256.143 457.939
201909 372.538 256.759 479.114
201912 357.242 256.974 459.058
202003 418.246 258.115 535.073
202006 425.764 257.797 545.362
202009 365.605 260.280 463.837
202012 299.016 260.474 379.074
202103 314.344 264.877 391.882
202106 325.954 271.696 396.157
202109 356.062 274.310 428.626
202112 360.793 278.802 427.323
202203 349.860 287.504 401.832
202206 377.032 296.311 420.170
202209 370.081 296.808 411.733
202212 350.764 296.797 390.256
202303 312.139 301.836 341.485
202306 310.536 305.109 336.087
202309 323.006 307.789 346.539
202312 299.213 306.746 322.104
202403 282.848 312.332 299.041
202406 319.983 314.175 336.317
202409 341.809 315.301 357.975
202412 363.815 315.605 380.654
202503 333.832 319.799 344.703
202506 286.818 322.561 293.622
202509 275.460 324.800 280.051
202512 278.721 324.054 284.018
202603 252.455 330.213 252.455

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 MXN380.88 mean?
Southwest Airlines Co (MEX:LUV) has a Cyclically Adjusted Book per Share of MXN380.88 as of Mar. 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 Southwest Airlines Co and its competitors.
Is Southwest Airlines Co's Cyclically Adjusted Book per Share too high?
Southwest Airlines Co's current Cyclically Adjusted Book per Share is MXN380.88. Overall, Southwest Airlines Co has a GF Score™ of 67/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Southwest Airlines Co's Cyclically Adjusted Book per Share compare to AAL and UAL?
Southwest Airlines Co's Cyclically Adjusted Book per Share of MXN380.88 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 Southwest Airlines Co and its competitors. Southwest Airlines Co's current Cyclically Adjusted Book per Share is MXN380.88. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Southwest Airlines Co stock overvalued right now?
Based on GuruFocus' analysis, Southwest Airlines Co (MEX:LUV) is currently considered Modestly Overvalued. The stock's GF Value™ is MXN738.09, compared to a current price of MXN839.00 — trading 13.7% above its estimated fair value. The current Cyclically Adjusted Book per Share is MXN380.88. Southwest Airlines Co's overall GF Score™ is 67/100 with 3 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 Southwest Airlines Co (MEX:LUV), the current Cyclically Adjusted Book per Share is MXN380.88 as of Mar. 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 Southwest Airlines Co (MEX:LUV) Overvalued in 2026?

Based on GuruFocus' analysis, Southwest Airlines Co stock appears to be overvalued. The current stock price of MXN839.00 is trading 13.7% above its estimated GF Value™ of MXN738.09. GuruFocus considers Southwest Airlines Co to be Modestly Overvalued.

Key valuation signals for MEX:LUV:

  • Cyclically Adjusted Book per Share: MXN380.88
  • GF Value™: MXN738.09 vs. price of MXN839.00 (13.7% above fair value)
  • GF Score™: 67/100 with 3 warning signs

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


Southwest Airlines Co Business Description

Address P.O. Box 36611, Dallas, TX, USA, 75235-1611
Southwest Airlines is the largest domestic air carrier in the United States by passengers boarded. Southwest operates nearly 800 aircraft in an all-Boeing 737 fleet. Despite offering some longer routes and a few perks for business travelers, the airline predominantly specializes in short-haul, leisure flights operated with a simple cabin configuration in a point-to-point network. In early 2026, Southwest modified its cabins to offer some rows with extra legroom, its ticketing process and merchandising to offer assigned seats, and more fare categories to include a basic economy class that appears for the first time in travel aggregators' search results and more directly competes with other airlines' offerings.
67GF Score

Get the complete analysis for MEX:LUV

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

MXN839.00
Price
MXN738.09
GF Value