International Seaways (FRA:IS5) Cyclically Adjusted PB Ratio: (As of Sep. 21, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

FRA:IS5 International Seaways Inc FRA:IS5
58 GF Score
Price €97.85
GF Value €53.38
Valuation Significantly Overvalued
! 5 Warning Signs
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What is International Seaways Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


International Seaways  (FRA:IS5) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


International Seaways Cyclically Adjusted PB Ratio Related Terms


International Seaways Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for International Seaways's Cyclically Adjusted PB Ratio 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 PB Ratio Chart

International Seaways Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only - 0.90 1.05 0.91 1.13

International Seaways Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted PB Ratio 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 0.81 1.00 1.09 1.63 1.79

FRA:IS5 vs HESM, GLNG, KNTK: Cyclically Adjusted PB Ratio 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.


FRA:IS5
58GF Score
International Seaways Inc FRA:IS5
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

International Seaways Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

International Seaways's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, International Seaways's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book=Book Value per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=40.012/333.9520*333.9520
=40.012

Current CPI (Jun. 2026) = 333.9520.

International Seaways Quarterly Data

Book Value per Share CPI Adj_Book
201609 37.378 241.428 51.703
201612 38.311 241.432 52.992
201703 38.452 243.801 52.671
201706 35.703 244.955 48.675
201709 33.995 246.819 45.996
201712 31.080 246.524 42.102
201803 29.696 249.554 39.739
201806 30.838 251.989 40.868
201809 29.739 252.439 39.342
201812 30.269 251.233 40.235
201903 31.049 254.202 40.790
201906 29.857 256.143 38.927
201909 30.773 256.759 40.025
201912 31.110 256.974 40.429
202003 32.557 258.115 42.123
202006 34.121 257.797 44.201
202009 33.109 260.280 42.480
202012 28.358 260.474 36.358
202103 29.349 264.877 37.003
202106 28.403 271.696 34.911
202109 21.188 274.310 25.795
202112 20.744 278.802 24.847
202203 21.100 287.504 24.509
202206 23.697 296.311 26.707
202209 27.649 296.808 31.109
202212 28.379 296.797 31.932
202303 29.150 301.836 32.252
202306 30.377 305.109 33.249
202309 31.876 307.789 34.586
202312 31.765 306.746 34.582
202403 33.917 312.332 36.265
202406 35.453 314.175 37.685
202409 34.145 315.301 36.165
202412 36.435 315.605 38.553
202503 35.102 319.799 36.655
202506 32.784 322.561 33.942
202509 33.335 324.800 34.274
202512 34.819 324.054 35.883
202603 38.470 330.213 38.906
202606 40.012 333.952 40.012

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

Is International Seaways (FRA:IS5) Overvalued in 2026?

Based on GuruFocus' analysis, International Seaways stock appears to be overvalued. The current stock price of €97.85 is trading 83.3% above its estimated GF Value™ of €53.38. GuruFocus considers International Seaways to be Significantly Overvalued.

Key valuation signals for FRA:IS5:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €53.38 vs. price of €97.85 (83.3% above fair value)
  • GF Score™: 58/100 with 5 warning signs

No single metric tells the full story. See the FRA: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.
58GF Score

Get the complete analysis for FRA:IS5

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

€97.85
Price
€53.38
GF Value