TGSNF (TGS ASA) Cyclically Adjusted Book per Share: $12.29 (As of Mar. 2026)


TGSNF TGS ASA TGSNF
80 GF Score
Price $13.90
GF Value $11.40
Valuation Modestly Overvalued
! 3 Warning Signs
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What is TGS ASA Cyclically Adjusted Book per Share?

TGS ASA TGSNF +5.95% 80 Cyclically Adjusted Book per Share is $12.29 as of Mar. 2026. GuruFocus rates TGSNF with a GF Score™ of 80/100 and a GF Value™ of $11.40 (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.

TGS ASA's adjusted book value per share for the three months ended in Mar. 2026 was $9.869. 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 $12.29 for the trailing ten years ended in Mar. 2026.

During the past 12 months, TGS ASA's average Cyclically Adjusted Book Growth Rate was -0.10% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 2.20% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 4.70% 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 TGS ASA was 8.00% per year. The lowest was 2.20% per year. And the median was 7.25% per year.

As of today (2026-07-02), TGS ASA's current stock price is $13.90. TGS ASA's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $12.29. TGS ASA's Cyclically Adjusted PB Ratio of today is 1.13.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of TGS ASA was 4.30. The lowest was 0.59. And the median was 1.32.


TGS ASA  (OTCPK:TGSNF) 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.

TGS ASA's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=13.90/12.29
=1.13

* 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 TGS ASA was 4.30. The lowest was 0.59. And the median was 1.32.


Be Aware

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


TGS ASA Cyclically Adjusted Book per Share Related Terms


TGS ASA Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for TGS ASA'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.

TGS ASA Cyclically Adjusted Book per Share Chart

TGS ASA 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 12.17 9.77 11.32 10.97 12.09

TGS ASA 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 10.63 11.87 12.26 12.09 12.29

TGSNF vs SLB, BKR, HAL: Cyclically Adjusted Book per Share Comparison

For the Oil & Gas Equipment & Services subindustry, TGS ASA'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.


TGS ASA Cyclically Adjusted PB Ratio vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, TGS ASA's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


TGSNF
80GF Score
TGS ASA TGSNF
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
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TGS ASA 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, TGS ASA'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)
=9.869/330.2130*330.2130
=9.869

Current CPI (Mar. 2026) = 330.2130.

TGS ASA Quarterly Data

Book Value per Share CPI Adj_Book
201606 11.485 241.018 15.735
201609 11.368 241.428 15.549
201612 11.507 241.432 15.738
201703 11.405 243.801 15.447
201706 11.376 244.955 15.335
201709 11.339 246.819 15.170
201712 11.739 246.524 15.724
201803 10.987 249.554 14.538
201806 11.110 251.989 14.559
201809 11.065 252.439 14.474
201812 12.020 251.233 15.799
201903 11.980 254.202 15.562
201906 11.593 256.143 14.945
201909 12.918 256.759 16.614
201912 13.193 256.974 16.953
202003 12.319 258.115 15.760
202006 11.554 257.797 14.800
202009 10.759 260.280 13.650
202012 10.822 260.474 13.719
202103 11.029 264.877 13.749
202106 10.787 271.696 13.110
202109 10.810 274.310 13.013
202112 9.606 278.802 11.377
202203 9.644 287.504 11.077
202206 9.726 296.311 10.839
202209 8.960 296.808 9.968
202212 9.929 296.797 11.047
202303 9.709 301.836 10.622
202306 9.757 305.109 10.560
202309 9.944 307.789 10.668
202312 9.744 306.746 10.489
202403 9.487 312.332 10.030
202406 9.627 314.175 10.118
202409 10.552 315.301 11.051
202412 10.576 315.605 11.066
202503 10.472 319.799 10.813
202506 10.021 322.561 10.259
202509 10.177 324.800 10.347
202512 10.080 324.054 10.272
202603 9.869 330.213 9.869

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 $12.29 mean?
TGS ASA (TGSNF) has a Cyclically Adjusted Book per Share of $12.29 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 TGS ASA and its competitors.
Is TGS ASA's Cyclically Adjusted Book per Share too high?
TGS ASA's current Cyclically Adjusted Book per Share is $12.29. Overall, TGS ASA has a GF Score™ of 80/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does TGS ASA's Cyclically Adjusted Book per Share compare to SLB and BKR?
TGS ASA's Cyclically Adjusted Book per Share of $12.29 can be compared against companies in the Oil & Gas 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 an Oil & Gas company?
A good Cyclically Adjusted Book per Share depends on the Oil & Gas 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 TGS ASA and its competitors. TGS ASA's current Cyclically Adjusted Book per Share is $12.29. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is TGS ASA stock overvalued right now?
Based on GuruFocus' analysis, TGS ASA (TGSNF) is currently considered Modestly Overvalued. The stock's GF Value™ is $11.40, compared to a current price of $13.90 — trading 21.9% above its estimated fair value. The current Cyclically Adjusted Book per Share is $12.29. TGS ASA's overall GF Score™ is 80/100 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 TGS ASA (TGSNF), the current Cyclically Adjusted Book per Share is $12.29 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 TGS ASA (TGSNF) Overvalued in 2026?

Based on GuruFocus' analysis, TGS ASA stock appears to be overvalued. The current stock price of $13.90 is trading 21.9% above its estimated GF Value™ of $11.40. GuruFocus considers TGS ASA to be Modestly Overvalued.

Key valuation signals for TGSNF:

  • Cyclically Adjusted Book per Share: $12.29
  • GF Value™: $11.40 vs. price of $13.90 (21.9% above fair value)
  • GF Score™: 80/100 with 3 warning signs

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


TGS ASA Business Description

Industry EnergyOil & Gas
Address 10451 Clay Road, Houston, TX, USA, 77041
TGS ASA provides energy data and related services, offering technology and solutions that support decision-making across the energy value chain, including exploration and production activities. The company's business activities are organized in the following segments: Multi-client, Marine Data Acquisition (MDA), Imaging, New Energy Solutions (NES), and Shared Services. The majority of the company's revenue is derived from the Multi-client sales segment, which initiates, acquires, processes, markets and sells energy data to multiple customers on a non-exclusive basis. Geographically, it generates the maximum revenue from Africa and the Middle East.
80GF Score

Get the complete analysis for TGSNF

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

$13.90
Price
$11.40
GF Value