SK Telecom Co (STU:KMBA) Cyclically Adjusted Book per Share: €29.40 (As of Mar. 2026)


STU:KMBA SK Telecom Co Ltd STU:KMBA
81 GF Score
Price €27.40
GF Value €16.85
Valuation Significantly Overvalued
! 5 Warning Signs
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What is SK Telecom Co Cyclically Adjusted Book per Share?

SK Telecom Co STU:KMBA -1.44% 81 Cyclically Adjusted Book per Share is €29.40 as of Mar. 2026. GuruFocus rates STU:KMBA with a GF Score™ of 81/100 and a GF Value™ of €16.85 (Significantly Overvalued). The stock has 5 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.

SK Telecom Co's adjusted book value per share for the three months ended in Mar. 2026 was €20.089. 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 €29.40 for the trailing ten years ended in Mar. 2026.

During the past 12 months, SK Telecom Co's average Cyclically Adjusted Book Growth Rate was -1.00% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -0.10% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 2.10% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 4.80% 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 SK Telecom Co was 14.50% per year. The lowest was -0.10% per year. And the median was 6.10% per year.

As of today (2026-07-06), SK Telecom Co's current stock price is €27.40. SK Telecom Co's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was €29.40. SK Telecom Co's Cyclically Adjusted PB Ratio of today is 0.93.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of SK Telecom Co was 1.19. The lowest was 0.48. And the median was 0.71.


SK Telecom Co  (STU:KMBA) 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.

SK Telecom Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=27.40/29.40
=0.93

* 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 SK Telecom Co was 1.19. The lowest was 0.48. And the median was 0.71.


Be Aware

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


SK Telecom Co Cyclically Adjusted Book per Share Related Terms


SK Telecom Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for SK Telecom 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.

SK Telecom Co Cyclically Adjusted Book per Share Chart

SK Telecom 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 35.35 36.11 34.19 33.12 28.39

SK Telecom 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 31.64 31.20 30.20 28.39 29.40

STU:KMBA vs TMUS, VZ, T: Cyclically Adjusted Book per Share Comparison

For the Telecom Services subindustry, SK Telecom 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.


SK Telecom Co Cyclically Adjusted PB Ratio vs Telecommunication Services Industry

For the Telecommunication Services industry and Communication Services sector, SK Telecom Co's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


STU:KMBA
81GF Score
SK Telecom Co Ltd STU:KMBA
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

SK Telecom 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, SK Telecom 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)
=20.089/125.2360*125.2360
=20.089

Current CPI (Mar. 2026) = 125.2360.

SK Telecom Co Quarterly Data

Book Value per Share CPI Adj_Book
201606 30.086 100.791 37.383
201609 31.996 101.461 39.493
201612 33.125 101.561 40.847
201703 33.739 102.851 41.082
201706 33.761 102.611 41.205
201709 33.275 103.491 40.267
201712 36.035 102.991 43.818
201803 38.828 104.101 46.711
201806 41.918 104.130 50.414
201809 43.365 105.651 51.404
201812 44.749 104.351 53.705
201903 44.233 104.491 53.015
201906 43.193 104.881 51.576
201909 43.987 105.200 52.364
201912 43.938 105.121 52.345
202003 42.128 105.354 50.078
202006 43.199 105.112 51.470
202009 43.187 106.198 50.929
202012 45.721 105.765 54.138
202103 45.613 107.357 53.209
202106 48.427 107.579 56.376
202109 48.894 108.759 56.301
202112 22.079 109.676 25.211
202203 21.785 111.848 24.393
202206 21.412 114.072 23.507
202209 21.183 114.715 23.126
202212 21.025 115.179 22.861
202303 20.935 116.507 22.503
202306 20.940 117.182 22.379
202309 20.801 118.964 21.898
202312 20.892 118.837 22.017
202403 20.998 120.123 21.892
202406 20.688 120.007 21.589
202409 20.728 120.861 21.478
202412 20.227 121.135 20.912
202503 19.544 122.590 19.966
202506 19.621 122.611 20.041
202509 18.652 123.402 18.929
202512 19.535 123.939 19.739
202603 20.089 125.236 20.089

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 €29.40 mean?
SK Telecom Co (STU:KMBA) has a Cyclically Adjusted Book per Share of €29.40 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 SK Telecom Co and its competitors.
Is SK Telecom Co's Cyclically Adjusted Book per Share too high?
SK Telecom Co's current Cyclically Adjusted Book per Share is €29.40. Overall, SK Telecom Co has a GF Score™ of 81/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does SK Telecom Co's Cyclically Adjusted Book per Share compare to TMUS and VZ?
SK Telecom Co's Cyclically Adjusted Book per Share of €29.40 can be compared against companies in the Telecommunication Services 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 Telecommunication Services company?
A good Cyclically Adjusted Book per Share depends on the Telecommunication Services 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 SK Telecom Co and its competitors. SK Telecom Co's current Cyclically Adjusted Book per Share is €29.40. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is SK Telecom Co stock overvalued right now?
Based on GuruFocus' analysis, SK Telecom Co (STU:KMBA) is currently considered Significantly Overvalued. The stock's GF Value™ is €16.85, compared to a current price of €27.40 — trading 62.6% above its estimated fair value. The current Cyclically Adjusted Book per Share is €29.40. SK Telecom Co's overall GF Score™ is 81/100 with 5 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 SK Telecom Co (STU:KMBA), the current Cyclically Adjusted Book per Share is €29.40 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 SK Telecom Co (STU:KMBA) Overvalued in 2026?

Based on GuruFocus' analysis, SK Telecom Co stock appears to be overvalued. The current stock price of €27.40 is trading 62.6% above its estimated GF Value™ of €16.85. GuruFocus considers SK Telecom Co to be Significantly Overvalued.

Key valuation signals for STU:KMBA:

  • Cyclically Adjusted Book per Share: €29.40
  • GF Value™: €16.85 vs. price of €27.40 (62.6% above fair value)
  • GF Score™: 81/100 with 5 warning signs

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


SK Telecom Co Business Description

Address SK T-Tower, 65, Eulji-ro, Jung-gu, Seoul, KOR, 04539
SK Telecom is South Korea's largest wireless telecom operator, with 32 million mobile customers. The firm also owns SK Broadband (formerly Hanaro Telecom), which has 7.2 million broadband customers and 9.5 million pay TV customers (6.7 million IPTV and 2.8 million Cable TV). While the firm also purchased stakes in businesses in security and semiconductor memory production, as well as developing e-commerce and internet platform businesses, these were all spun off into the separate SK Square business in November 2021. The company was formed after SK Group purchased KT's mobile business in 1994.
81GF Score

Get the complete analysis for STU:KMBA

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

€27.40
Price
€16.85
GF Value