Sea1 Offshore (OSL:SEA1) Cyclically Adjusted PB Ratio: 0.11 (As of Jul. 27, 2026) — 57% Above Median

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.

OSL:SEA1 Sea1 Offshore Inc OSL:SEA1
75 GF Score
Price kr26.85
GF Value kr28.81
Valuation Fairly Valued
! 4 Warning Signs
View Full Analysis

What is Sea1 Offshore Cyclically Adjusted PB Ratio?

Sea1 Offshore OSL:SEA1 +0.37% 75 Cyclically Adjusted PB Ratio is 0.11 as of Jul. 27, 2026, which is 57% above its 10-year median of 0.07. GuruFocus rates OSL:SEA1 with a GF Score™ of 75/100 and a GF Value™ of kr28.81 (Fairly Valued). The stock has 4 warning signs investors should review. Among 766 Oil & Gas companies, Sea1 Offshore ranks better than 93.08% on this metric.

As of today (2026-07-27), Sea1 Offshore's current share price is kr26.85. Sea1 Offshore's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was kr248.78. Sea1 Offshore's Cyclically Adjusted PB Ratio for today is 0.11.

The historical rank and industry rank for Sea1 Offshore's Cyclically Adjusted PB Ratio or its related term are showing as below:

OSL:SEA1' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.01   Med: 0.07   Max: 0.2
Current: 0.11

During the past years, Sea1 Offshore's highest Cyclically Adjusted PB Ratio was 0.20. The lowest was 0.01. And the median was 0.07.

OSL:SEA1's Cyclically Adjusted PB Ratio is ranked better than
93.08% of 766 companies
in the Oil & Gas industry
Industry Median: 1.215 vs OSL:SEA1: 0.11

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.

Sea1 Offshore's adjusted book value per share data for the three months ended in Mar. 2026 was kr24.865. 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 kr248.78 for the trailing ten years ended in Mar. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


Sea1 Offshore  (OSL:SEA1) 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.


Sea1 Offshore Cyclically Adjusted PB Ratio Related Terms


Sea1 Offshore Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Sea1 Offshore'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.

Sea1 Offshore Cyclically Adjusted PB Ratio Chart

Sea1 Offshore 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 0.00 0.02 0.05 0.06 0.09

Sea1 Offshore Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 0.06 0.08 0.08 0.09 0.14

OSL:SEA1 vs SLB, BKR, FTI: Cyclically Adjusted PB Ratio Comparison

For the Oil & Gas Equipment & Services subindustry, Sea1 Offshore'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.


Sea1 Offshore Cyclically Adjusted PB Ratio vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Sea1 Offshore's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Sea1 Offshore's Cyclically Adjusted PB Ratio falls into.


OSL:SEA1
75GF Score
Sea1 Offshore Inc OSL:SEA1
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Sea1 Offshore 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.

Sea1 Offshore's Cyclically Adjusted PB Ratio for today is calculated as

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=26.85/248.78
=0.11

* 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.

Sea1 Offshore's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 is calculated as:

For example, Sea1 Offshore'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)
=24.865/141.0300*141.0300
=24.865

Current CPI (Mar. 2026) = 141.0300.

Sea1 Offshore Quarterly Data

Book Value per Share CPI Adj_Book
201606 612.108 103.800 831.653
201609 605.764 104.200 819.874
201612 558.348 104.400 754.251
201703 541.440 105.000 727.231
201706 437.001 105.800 582.517
201709 411.068 105.900 547.431
201712 376.044 106.100 499.844
201803 330.205 107.300 434.006
201806 428.742 108.500 557.286
201809 438.100 109.500 564.249
201812 401.271 109.800 515.403
201903 384.467 110.400 491.136
201906 376.879 110.600 480.572
201909 388.722 111.100 493.443
201912 341.278 111.300 432.439
202003 342.830 111.200 434.796
202006 87.680 112.100 110.308
202009 85.344 112.900 106.608
202012 53.239 112.900 66.504
202103 46.349 114.600 57.038
202106 11.705 115.300 14.317
202109 12.049 117.500 14.462
202112 12.816 118.900 15.201
202203 12.985 119.800 15.286
202206 14.420 122.600 16.588
202209 15.426 125.600 17.321
202212 15.019 125.900 16.824
202303 17.002 127.600 18.791
202306 18.610 130.400 20.127
202309 19.255 129.800 20.921
202312 23.597 131.900 25.230
202403 23.967 132.600 25.491
202406 30.183 133.800 31.814
202409 27.928 133.700 29.459
202412 29.746 134.800 31.121
202503 23.190 136.100 24.030
202506 26.150 137.800 26.763
202509 26.766 138.500 27.255
202512 28.363 139.100 28.757
202603 24.865 141.030 24.865

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.

What does a Cyclically Adjusted PB Ratio of 0.11 mean?
Sea1 Offshore (OSL:SEA1) has a Cyclically Adjusted PB Ratio of 0.11 as of Jul. 27, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Sea1 Offshore and its competitors. This is 57% above median its historical median of 0.07. Over the past decade, Sea1 Offshore's Cyclically Adjusted PB Ratio has ranged from 0.01 to 0.20. According to the industry distribution chart, Sea1 Offshore ranks #53 out of 766 companies in the Oil & Gas industry, placing it in the top 6.9%.
Is Sea1 Offshore's Cyclically Adjusted PB Ratio too high?
Sea1 Offshore's current Cyclically Adjusted PB Ratio of 0.11 is 57% above median its 10-year median of 0.07. Over the past 10 years, this metric has ranged from a low of 0.01 to a high of 0.20. The Oil & Gas industry median Cyclically Adjusted PB Ratio is 1.22. Sea1 Offshore's value of 0.11 is 90.9% below this industry median. Based on the distribution chart, Sea1 Offshore ranks #53 out of 766 companies in the Oil & Gas industry, which is in the top quartile — a strong position relative to peers. Overall, Sea1 Offshore has a GF Score™ of 75/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Sea1 Offshore's Cyclically Adjusted PB Ratio compare to SLB and BKR?
According to the Oil & Gas industry distribution chart, Sea1 Offshore ranks #53 out of 766 companies for Cyclically Adjusted PB Ratio. This places Sea1 Offshore in the top 7% of its industry — outperforming the majority of peers. The industry median Cyclically Adjusted PB Ratio is 1.22. Sea1 Offshore's value of 0.11 is 90.9% below this benchmark. Historically, Sea1 Offshore's own Cyclically Adjusted PB Ratio has ranged from 0.01 to 0.20 over the past decade. While the company's 10-year median is 0.07 vs. the industry median of 1.22, Sea1 Offshore has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted PB Ratio for an Oil & Gas company?
The median Cyclically Adjusted PB Ratio among Oil & Gas companies is 1.22, based on 766 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sea1 Offshore's current Cyclically Adjusted PB Ratio of 0.11 is 90.9% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Sea1 Offshore and its competitors. For the Oil & Gas industry, the median Cyclically Adjusted PB Ratio is 1.22 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sea1 Offshore's current Cyclically Adjusted PB Ratio is 0.11, which is 57% above median its own 10-year median of 0.07. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sea1 Offshore stock overvalued right now?
Based on GuruFocus' analysis, Sea1 Offshore (OSL:SEA1) is currently considered Fairly Valued. The stock's GF Value™ is kr28.81, compared to a current price of kr26.85 — trading 6.8% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 0.11, which is 57% above median its 10-year median of 0.07 and 90.9% below the Oil & Gas industry median of 1.22. Sea1 Offshore's overall GF Score™ is 75/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Sea1 Offshore (OSL:SEA1), the current Cyclically Adjusted PB Ratio is 0.11 as of Jul. 27, 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 Sea1 Offshore (OSL:SEA1) Overvalued in 2026?

Based on GuruFocus' analysis, Sea1 Offshore stock appears to be undervalued. The current stock price of kr26.85 is trading 6.8% below its estimated GF Value™ of kr28.81. GuruFocus considers Sea1 Offshore to be Fairly Valued.

Key valuation signals for OSL:SEA1:

  • Cyclically Adjusted PB Ratio: 0.11 (57% above median its 10-year median of 0.07)
  • GF Value™: kr28.81 vs. price of kr26.85 (6.8% below fair value)
  • GF Score™: 75/100 with 4 warning signs
  • Industry Position: 90.9% below the Oil & Gas median (#53 of 766)

No single metric tells the full story. See the OSL:SEA1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Sea1 Offshore Business Description

Industry EnergyOil & Gas
Other Exchanges SIOFFO:SwedenS5H0:Germany
Address Kjoita 18, Kristiansand, NOR, 4630
Sea1 Offshore Inc is a vessel provider to the offshore oil and gas and renewable industry. It provides a wide range of services with its vessels, equipment and an experienced crew. The fleet consists of various vessels and includes platform supply vessels, anchor handling tug and supply as well as offshore subsea construction and well intervention vessels. The reportable segments are Subsea Vessels, Anchor-Handling Tug Supply (AHTS) Vessels, Platform Supply Vessels (PSVs), Fast Crew & Oil Spill Recovery Vessels, and Other. The company generates the majority of its revenue from the Subsea Vessels segment.
75GF Score

Get the complete analysis for OSL:SEA1

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

kr26.85
Price
kr28.81
GF Value