Tsakos Energy Navigation (STU:TK41) Cyclically Adjusted Book per Share: €69.35 (As of Mar. 2026)

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STU:TK41 Tsakos Energy Navigation Ltd STU:TK41
48 GF Score
Price €35.04
GF Value €19.34
Valuation Significantly Overvalued
! 7 Warning Signs
View Full Analysis

What is Tsakos Energy Navigation Cyclically Adjusted Book per Share?

Tsakos Energy Navigation STU:TK41 +3.12% 48 Cyclically Adjusted Book per Share is €69.35 as of Mar. 2026. GuruFocus rates STU:TK41 with a GF Score™ of 48/100 and a GF Value™ of €19.34 (Significantly Overvalued). The stock has 7 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.

Tsakos Energy Navigation's adjusted book value per share for the three months ended in Mar. 2026 was €54.675. 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 €69.35 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Tsakos Energy Navigation's average Cyclically Adjusted Book Growth Rate was -0.70% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -1.10% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -0.40% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was -2.40% 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 Tsakos Energy Navigation was 0.60% per year. The lowest was -5.20% per year. And the median was -1.90% per year.

As of today (2026-07-22), Tsakos Energy Navigation's current stock price is €35.04. Tsakos Energy Navigation's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was €69.35. Tsakos Energy Navigation's Cyclically Adjusted PB Ratio of today is 0.51.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Tsakos Energy Navigation was 0.54. The lowest was 0.09. And the median was 0.21.


Tsakos Energy Navigation  (STU:TK41) 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.

Tsakos Energy Navigation's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=35.04/69.35
=0.51

* 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 Tsakos Energy Navigation was 0.54. The lowest was 0.09. And the median was 0.21.


Be Aware

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


Tsakos Energy Navigation Cyclically Adjusted Book per Share Related Terms


Tsakos Energy Navigation Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Tsakos Energy Navigation'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.

Tsakos Energy Navigation Cyclically Adjusted Book per Share Chart

Tsakos Energy Navigation 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 70.01 75.53 72.88 74.10 67.11

Tsakos Energy Navigation 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 74.25 68.29 67.97 67.11 69.35

STU:TK41 vs PBT, SBR, EE: Cyclically Adjusted Book per Share Comparison

For the Oil & Gas Midstream subindustry, Tsakos Energy Navigation'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.


Tsakos Energy Navigation Cyclically Adjusted PB Ratio vs Oil & Gas Industry

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

* The bar in red indicates where Tsakos Energy Navigation's Cyclically Adjusted PB Ratio falls into.


STU:TK41
48GF Score
Tsakos Energy Navigation Ltd STU:TK41
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tsakos Energy Navigation 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, Tsakos Energy Navigation'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)
=54.675/124.8200*124.8200
=54.675

Current CPI (Mar. 2026) = 124.8200.

Tsakos Energy Navigation Quarterly Data

Book Value per Share CPI Adj_Book
201606 73.770 100.121 91.969
201609 74.234 99.878 92.772
201612 79.136 100.110 98.670
201703 78.472 100.770 97.201
201706 79.470 101.138 98.078
201709 74.523 100.882 92.207
201712 72.549 100.762 89.870
201803 68.393 100.534 84.915
201806 76.792 102.121 93.861
201809 77.078 101.982 94.339
201812 74.084 101.330 91.258
201903 74.236 101.482 91.308
201906 70.791 101.837 86.767
201909 72.999 101.906 89.413
201912 67.810 102.120 82.883
202003 68.252 101.479 83.951
202006 67.772 100.239 84.391
202009 62.986 99.886 78.709
202012 60.334 99.751 75.497
202103 62.220 99.817 77.805
202106 54.890 101.270 67.655
202109 52.912 102.095 64.689
202112 44.143 104.853 52.549
202203 41.348 108.651 47.501
202206 43.339 113.517 47.654
202209 46.986 114.371 51.279
202212 46.611 112.428 51.749
202303 51.274 113.620 56.328
202306 49.175 115.515 53.136
202309 50.043 116.234 53.740
202312 49.945 116.364 53.574
202403 51.365 117.285 54.665
202406 53.660 118.129 56.700
202409 51.219 119.650 53.432
202412 54.401 119.360 56.890
202503 53.533 120.133 55.622
202506 50.450 121.399 51.872
202509 50.841 121.950 52.038
202512 51.249 122.450 52.241
202603 54.675 124.820 54.675

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 €69.35 mean?
Tsakos Energy Navigation (STU:TK41) has a Cyclically Adjusted Book per Share of €69.35 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 Tsakos Energy Navigation and its competitors.
Is Tsakos Energy Navigation's Cyclically Adjusted Book per Share too high?
Tsakos Energy Navigation's current Cyclically Adjusted Book per Share is €69.35. Overall, Tsakos Energy Navigation has a GF Score™ of 48/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Tsakos Energy Navigation's Cyclically Adjusted Book per Share compare to PBT and SBR?
Tsakos Energy Navigation's Cyclically Adjusted Book per Share of €69.35 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 Tsakos Energy Navigation and its competitors. Tsakos Energy Navigation's current Cyclically Adjusted Book per Share is €69.35. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tsakos Energy Navigation stock overvalued right now?
Based on GuruFocus' analysis, Tsakos Energy Navigation (STU:TK41) is currently considered Significantly Overvalued. The stock's GF Value™ is €19.34, compared to a current price of €35.04 — trading 81.2% above its estimated fair value. The current Cyclically Adjusted Book per Share is €69.35. Tsakos Energy Navigation's overall GF Score™ is 48/100 with 7 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 Tsakos Energy Navigation (STU:TK41), the current Cyclically Adjusted Book per Share is €69.35 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 Tsakos Energy Navigation (STU:TK41) Overvalued in 2026?

Based on GuruFocus' analysis, Tsakos Energy Navigation stock appears to be overvalued. The current stock price of €35.04 is trading 81.2% above its estimated GF Value™ of €19.34. GuruFocus considers Tsakos Energy Navigation to be Significantly Overvalued.

Key valuation signals for STU:TK41:

  • Cyclically Adjusted Book per Share: €69.35
  • GF Value™: €19.34 vs. price of €35.04 (81.2% above fair value)
  • GF Score™: 48/100 with 7 warning signs

No single metric tells the full story. See the STU:TK41 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tsakos Energy Navigation Business Description

Industry EnergyOil & Gas
Address 367 Syngrou Avenue, 175 64 Palaio Faliro, Megaron Makedonia, Athens, GRC, 175 64
Tsakos Energy Navigation Ltd is a provider of international seaborne crude oil and petroleum product transportation services. The company operated a fleet of modern crude oil and petroleum product tankers, including vessels chartered-in that provide world-wide marine transportation services for national and other independent oil companies and refiners under long, medium and short-term charters. Its fleet also includes LNG carriers, including chartered-in vessel and suezmax shuttle tankers with dynamic positioning technology (DP2). It operates in one reportable segment, the world-wide maritime transportation of liquid energy-related products.
48GF Score

Get the complete analysis for STU:TK41

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

€35.04
Price
€19.34
GF Value