International Seaways (HAM:IS5) Cyclically Adjusted Book per Share: €36.54 (As of Mar. 2026)


HAM:IS5 International Seaways Inc HAM:IS5
64 GF Score
Price €74.45
GF Value €42.36
Valuation Significantly Overvalued
! 5 Warning Signs
View Full Analysis

What is International Seaways Cyclically Adjusted Book per Share?

International Seaways HAM:IS5 -0.13% 64 Cyclically Adjusted Book per Share is €36.54 as of Mar. 2026. GuruFocus rates HAM:IS5 with a GF Score™ of 64/100 and a GF Value™ of €42.36 (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.

International Seaways's adjusted book value per share for the three months ended in Mar. 2026 was €38.341. 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 €36.54 for the trailing ten years ended in Mar. 2026.

During the past 12 months, International Seaways's average Cyclically Adjusted Book Growth Rate was 0.10% 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.

As of today (2026-07-09), International Seaways's current stock price is €74.45. International Seaways's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was €36.54. International Seaways's Cyclically Adjusted PB Ratio of today is 2.04.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of International Seaways was 2.15. The lowest was 0.67. And the median was 1.07.


International Seaways  (HAM:IS5) 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.

International Seaways's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=74.45/36.54
=2.04

* 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 International Seaways was 2.15. The lowest was 0.67. And the median was 1.07.


Be Aware

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


International Seaways Cyclically Adjusted Book per Share Related Terms


International Seaways Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for International Seaways'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.

International Seaways Cyclically Adjusted Book per Share Chart

International Seaways 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 0.00 0.00 0.00 0.00 36.43

International Seaways 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 0.00 0.00 0.00 36.43 36.54

HAM:IS5 vs KNTK, STNG, SUNC: Cyclically Adjusted Book per Share Comparison

For the Oil & Gas Midstream subindustry, International Seaways'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.


International Seaways Cyclically Adjusted PB Ratio vs Oil & Gas Industry

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

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


HAM:IS5
64GF Score
International Seaways Inc HAM:IS5
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

International Seaways 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, International Seaways'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)
=38.341/330.2130*330.2130
=38.341

Current CPI (Mar. 2026) = 330.2130.

International Seaways Quarterly Data

Book Value per Share CPI Adj_Book
201606 41.634 241.018 57.042
201609 37.427 241.428 51.191
201612 38.308 241.432 52.395
201703 38.453 243.801 52.082
201706 36.242 244.955 48.856
201709 33.718 246.819 45.110
201712 31.536 246.524 42.242
201803 29.620 249.554 39.194
201806 30.820 251.989 40.387
201809 29.603 252.439 38.723
201812 30.415 251.233 39.977
201903 30.854 254.202 40.080
201906 30.092 256.143 38.794
201909 30.463 256.759 39.178
201912 31.429 256.974 40.386
202003 32.330 258.115 41.361
202006 34.031 257.797 43.590
202009 32.962 260.280 41.818
202012 28.521 260.474 36.157
202103 28.975 264.877 36.122
202106 27.957 271.696 33.978
202109 20.371 274.310 24.523
202112 20.866 278.802 24.714
202203 21.307 287.504 24.472
202206 23.425 296.311 26.105
202209 27.357 296.808 30.436
202212 28.591 296.797 31.810
202303 29.580 301.836 32.361
202306 30.589 305.109 33.106
202309 31.623 307.789 33.927
202312 32.176 306.746 34.638
202403 33.700 312.332 35.629
202406 35.299 314.175 37.101
202409 34.335 315.301 35.959
202412 36.031 315.605 37.699
202503 35.074 319.799 36.216
202506 33.365 322.561 34.157
202509 33.372 324.800 33.928
202512 34.923 324.054 35.587
202603 38.341 330.213 38.341

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 €36.54 mean?
International Seaways (HAM:IS5) has a Cyclically Adjusted Book per Share of €36.54 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 International Seaways and its competitors.
Is International Seaways' Cyclically Adjusted Book per Share too high?
International Seaways' current Cyclically Adjusted Book per Share is €36.54. Overall, International Seaways has a GF Score™ of 64/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does International Seaways' Cyclically Adjusted Book per Share compare to KNTK and STNG?
International Seaways' Cyclically Adjusted Book per Share of €36.54 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 International Seaways and its competitors. International Seaways's current Cyclically Adjusted Book per Share is €36.54. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is International Seaways stock overvalued right now?
Based on GuruFocus' analysis, International Seaways (HAM:IS5) is currently considered Significantly Overvalued. The stock's GF Value™ is €42.36, compared to a current price of €74.45 — trading 75.8% above its estimated fair value. The current Cyclically Adjusted Book per Share is €36.54. International Seaways' overall GF Score™ is 64/100 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 International Seaways (HAM:IS5), the current Cyclically Adjusted Book per Share is €36.54 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 International Seaways (HAM:IS5) Overvalued in 2026?

Based on GuruFocus' analysis, International Seaways stock appears to be overvalued. The current stock price of €74.45 is trading 75.8% above its estimated GF Value™ of €42.36. GuruFocus considers International Seaways to be Significantly Overvalued.

Key valuation signals for HAM:IS5:

  • Cyclically Adjusted Book per Share: €36.54
  • GF Value™: €42.36 vs. price of €74.45 (75.8% above fair value)
  • GF Score™: 64/100 with 5 warning signs

No single metric tells the full story. See the HAM:IS5 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


International Seaways Business Description

Industry EnergyOil & Gas
Other Exchanges INSW:USAIS5:Germany
Address 600 Third Avenue, 39th Floor, New York, NY, USA, 10016
International Seaways Inc owns and operates a fleet of oceangoing vessels engaged in the transportation of crude oil and petroleum products. The company's vessel operations are organized into two segments: Crude Tankers and Product Carriers. Its fleet consists of ULCC, VLCC, Suezmax, Aframax, and Panamax crude tankers, as well as LR1, LR2, and MR product carriers.
64GF Score

Get the complete analysis for HAM:IS5

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

€74.45
Price
€42.36
GF Value