GURUFOCUS.COM » STOCK LIST » Industrials » Transportation » Delta Air Lines Inc (BSP:DEAI34) » Definitions » Cyclically Adjusted Book per Share

Delta Air Lines (BSP:DEAI34) Cyclically Adjusted Book per Share : R$97.43 (As of Mar. 2025)


View and export this data going back to . Start your Free Trial

What is Delta Air Lines Cyclically Adjusted Book per Share?

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.

Delta Air Lines's adjusted book value per share for the three months ended in Mar. 2025 was R$136.220. 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 R$97.43 for the trailing ten years ended in Mar. 2025.

During the past 12 months, Delta Air Lines's average Cyclically Adjusted Book Growth Rate was 5.30% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 9.20% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 10.00% 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 Delta Air Lines was 41.80% per year. The lowest was -90.80% per year. And the median was 5.10% per year.

As of today (2025-06-01), Delta Air Lines's current stock price is R$277.12. Delta Air Lines's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2025 was R$97.43. Delta Air Lines's Cyclically Adjusted PB Ratio of today is 2.84.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Delta Air Lines was 23.52. The lowest was 1.67. And the median was 3.49.


Delta Air Lines Cyclically Adjusted Book per Share Historical Data

The historical data trend for Delta Air Lines'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.

* Premium members only.

Delta Air Lines Cyclically Adjusted Book per Share Chart

Delta Air Lines Annual Data
Trend Dec15 Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 62.66 73.10 79.47 79.98 106.24

Delta Air Lines Quarterly Data
Jun20 Sep20 Dec20 Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25
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 83.81 93.38 91.96 106.24 97.43

Competitive Comparison of Delta Air Lines's Cyclically Adjusted Book per Share

For the Airlines subindustry, Delta Air Lines'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.


Delta Air Lines's Cyclically Adjusted PB Ratio Distribution in the Transportation Industry

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

* The bar in red indicates where Delta Air Lines's Cyclically Adjusted PB Ratio falls into.


;
;

Delta Air Lines 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, Delta Air Lines's adjusted Book Value per Share data for the three months ended in Mar. 2025 was:

Adj_Book= Book Value per Share /CPI of Mar. 2025 (Change)*Current CPI (Mar. 2025)
=136.22/134.9266*134.9266
=136.220

Current CPI (Mar. 2025) = 134.9266.

Delta Air Lines Quarterly Data

Book Value per Share CPI Adj_Book
201506 37.412 100.684 50.136
201509 51.341 100.392 69.003
201512 54.067 99.792 73.103
201603 53.928 100.470 72.423
201606 53.986 101.688 71.632
201609 55.267 101.861 73.207
201612 56.396 101.863 74.702
201703 55.043 102.862 72.201
201706 61.349 103.349 80.094
201709 61.514 104.136 79.703
201712 58.380 104.011 75.732
201803 58.613 105.290 75.112
201806 70.126 106.317 88.997
201809 82.124 106.507 104.038
201812 78.171 105.998 99.505
201903 75.706 107.251 95.242
201906 82.771 108.070 103.341
201909 95.977 108.329 119.541
201912 98.070 108.420 122.046
202003 109.615 108.902 135.811
202006 70.685 108.767 87.685
202009 28.425 109.815 34.925
202012 12.366 109.897 15.182
202103 4.246 111.754 5.126
202106 10.066 114.631 11.848
202109 21.495 115.734 25.060
202112 34.346 117.630 39.396
202203 23.218 121.301 25.826
202206 30.001 125.017 32.379
202209 37.537 125.227 40.445
202212 53.839 125.222 58.012
202303 50.731 127.348 53.750
202306 61.103 128.729 64.045
202309 70.811 129.860 73.574
202312 84.564 129.419 88.162
202403 86.051 131.776 88.108
202406 103.363 132.554 105.213
202409 117.110 133.029 118.781
202412 144.326 133.157 146.244
202503 136.220 134.927 136.220

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


Delta Air Lines  (BSP:DEAI34) 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.

Delta Air Lines's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=277.12/97.43
=2.84

* 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 Delta Air Lines was 23.52. The lowest was 1.67. And the median was 3.49.


Be Aware

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


Delta Air Lines Cyclically Adjusted Book per Share Related Terms

Thank you for viewing the detailed overview of Delta Air Lines's Cyclically Adjusted Book per Share provided by GuruFocus.com. Please click on the following links to see related term pages.


Delta Air Lines Business Description

Industry
Address
Post Office Box 20706, Atlanta, GA, USA, 30320-6001
Atlanta-based Delta Air Lines is one of the world's largest airlines, with a network of over 300 destinations in more than 50 countries. Delta operates a hub-and-spoke network, where it gathers and distributes passengers across the globe through its biggest hubs in Atlanta, New York, Salt Lake City, Detroit, Seattle, and Minneapolis-St. Paul. Delta has historically earned most of its international revenue and profits from flying passengers over the Atlantic Ocean.

Delta Air Lines Headlines

No Headlines