Prosafe SE (OSL:PRS) Graham Number: krN/A (As of Mar. 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.

OSL:PRS Prosafe SE OSL:PRS
66 GF Score
Price kr4.50
GF Value kr4.78
Valuation Fairly Valued
! 7 Warning Signs
View Full Analysis

What is Prosafe SE Graham Number?

Prosafe SE OSL:PRS -1.53% 66 Graham Number is krN/A as of Mar. 2026. GuruFocus rates OSL:PRS with a GF Score™ of 66/100 and a GF Value™ of kr4.78 (Fairly Valued). The stock has 7 warning signs investors should review. Among 608 Oil & Gas companies, Prosafe SE ranks worse than 164473.52% on this metric.

Graham Number is a figure that measures a stock's fundamental value by taking into account the company's earnings per share and book value per share. The Graham number is the upper bound of the price range that a defensive investor should pay for the stock. According to the theory, any stock price below the Graham number is considered undervalued, and thus worth investing in.

As of today (2026-07-16), the stock price of Prosafe SE is kr4.50. Prosafe SE's graham number for the quarter that ended in Mar. 2026 was krN/A. Therefore, Prosafe SE's Price to Graham Number ratio for today is N/A.

The historical rank and industry rank for Prosafe SE's Graham Number or its related term are showing as below:

During the past 13 years, the highest Price to Graham Number ratio of Prosafe SE was 3.82. The lowest was 0.05. And the median was 0.07.

OSL:PRS's Price-to-Graham-Number is not ranked *
in the Oil & Gas industry.
Industry Median: 1.07
* Ranked among companies with meaningful Price-to-Graham-Number only.

Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.


Prosafe SE  (OSL:PRS) Graham Number Explanation

Ben Graham actually did not publish a formula like this. But he wrote in The Intelligent Investor (1948 version) regarding to the criteria for purchases:

Current price should not be more than 15 times average earnings of the past three years.

Current price should not be more than 1.5 times the book value last reported. However, a multiplier of earnings below 15 could justify a correspondingly higher multiplier of assets. As a rule of thumb we suggest that the product of the multiplier times the ratio of price to book value should not exceed 22.5. (This figure corresponds to 15 times earnings and 1.5 times book value. It would admit an issue selling at only 9 times earnings and 2.5 times asset value, etc.)

Unlike valuation methods such as DCF or Discounted Earnings, the Graham number does not take growth into the valuation. Unlike the valuation methods based on book value alone, it takes into account the earnings power. Therefore, the Graham Number is a combination of asset valuation and earnings power valuation.

In general, the Graham number is a very conservative way of valuing a stock. It cannot be applied to companies with negative book values.

Prosafe SE's Price to Graham number Ratio for today is calculated as

Price to Graham number=Share Price (Today)/Graham number (Q: Mar. 2026 )
=4.50/N/A
=N/A

* 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.


Be Aware

Please keep these in mind:

1. Graham Number does not take growth into account. Therefore it underestimates the values of the companies that have good earnings growth. We feel that if the earnings per share grows more than 10% a year, Graham Number underestimates the value.
2. Graham Number punishes the companies that have temporarily low earnings. Therefore, an average of earnings makes more sense in the calculation of Graham Number.
3. Graham Numbers underestimates companies that are light with book.


Prosafe SE Graham Number Related Terms


Prosafe SE Graham Number Historical Data

* Premium members only.

The historical data trend for Prosafe SE's Graham Number 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.

Prosafe SE Graham Number Chart

Prosafe SE Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Graham Number
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 42.07 0.00 0.00 0.00

Prosafe SE Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Graham Number 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 0.00 0.00

OSL:PRS vs SLB, BKR, HAL: Graham Number Comparison

For the Oil & Gas Equipment & Services subindustry, Prosafe SE's Price-to-Graham-Number, along with its competitors' market caps and Price-to-Graham-Number 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.


Prosafe SE Price-to-Graham-Number vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Prosafe SE's Price-to-Graham-Number distribution charts can be found below:

* The bar in red indicates where Prosafe SE's Price-to-Graham-Number falls into.


OSL:PRS
66GF Score
Prosafe SE OSL:PRS
Graham Number is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Prosafe SE Graham Number Calculation

Graham Number is a concept based on Ben Graham's conservative valuation of companies.

Prosafe SE's Graham Number for the fiscal year that ended in Dec. 2025 is calculated as

Graham Number
=sqrt of (22.5* Tangible Book per Share *EPS without NRI)
=sqrt of (22.5*4.06*-2.298)
=N/A

Prosafe SE's Graham Number for the quarter that ended in Mar. 2026 is calculated as

Graham Number
=sqrt of (22.5*Tangible Book per Share*EPS without NRI (TTM))
=sqrt of (22.5*3.863*-7.005)
=N/A

* 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.

Frequently Asked Questions Learn more about Graham Number →
What does a Graham Number of krN/A mean?
Prosafe SE (OSL:PRS) has a Graham Number of krN/A as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Prosafe SE and its competitors. Over the past decade, Prosafe SE's Graham Number has ranged from 0.05 to 3.82. According to the industry distribution chart, Prosafe SE ranks #999999 out of 608 companies in the Oil & Gas industry.
Is Prosafe SE's Graham Number too high?
Prosafe SE's current Graham Number is krN/A. Over the past 10 years, this metric has ranged from a low of 0.05 to a high of 3.82. Based on the distribution chart, Prosafe SE ranks #999999 out of 608 companies in the Oil & Gas industry, which is in the bottom quartile relative to peers. Overall, Prosafe SE has a GF Score™ of 66/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Prosafe SE's Graham Number compare to SLB and BKR?
According to the Oil & Gas industry distribution chart, Prosafe SE ranks #999999 out of 608 companies for Graham Number. This places Prosafe SE in the lower half of its industry. The industry median Graham Number is 1.07. Historically, Prosafe SE's own Graham Number has ranged from 0.05 to 3.82 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Graham Number for an Oil & Gas company?
The median Graham Number among Oil & Gas companies is 1.07, based on 608 companies in the industry. Companies in the top quartile (top 25%) have a Graham Number significantly above this median, while those in the bottom quartile fall well below. However, Graham Number 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 Graham Number mean?
A high Graham Number can signal that a stock is expensive relative to its fundamentals. The Graham Number values a company based on its per-share earnings and book value. View historical data on Prosafe SE and its competitors. For the Oil & Gas industry, the median Graham Number is 1.07 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Prosafe SE's current Graham Number is krN/A. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Prosafe SE stock overvalued right now?
Based on GuruFocus' analysis, Prosafe SE (OSL:PRS) is currently considered Fairly Valued. The stock's GF Value™ is kr4.78, compared to a current price of kr4.50 — trading 5.9% below its estimated fair value. The current Graham Number is krN/A. Prosafe SE's overall GF Score™ is 66/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Graham Number calculated?
Graham Number is calculated from a company's financial statements. For Prosafe SE (OSL:PRS), the current Graham Number is krN/A 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 Prosafe SE (OSL:PRS) Overvalued in 2026?

Based on GuruFocus' analysis, Prosafe SE stock appears to be undervalued. The current stock price of kr4.50 is trading 5.9% below its estimated GF Value™ of kr4.78. GuruFocus considers Prosafe SE to be Fairly Valued.

Key valuation signals for OSL:PRS:

  • Graham Number: krN/A
  • GF Value™: kr4.78 vs. price of kr4.50 (5.9% below fair value)
  • GF Score™: 66/100 with 7 warning signs

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


Prosafe SE Business Description

Industry EnergyOil & Gas
Other Exchanges PRSEF:USA1Q6:Germany
Address Ruselokkveien 30, Stavanger, NOR, 0251
Prosafe SE is an owner and operator of semi-submersible accommodation, safety, and support vessels, and one Tender Support Vessel. The company's vessels serve energy companies on various offshore projects in offshore oil and gas areas. The company's operations are related to the support of the lifecycle of offshore installations, such as maintenance and modification of installations on fields already in production, hook-up and commissioning of new fields, tie-backs to existing infrastructure, and decommissioning. The Group has one segment, which is chartering and operation of accommodation vessels for maintenance and safety. Geographically, the company operates in South America; Europe; North America; and APAC. It derives maximum revenue from South America.
66GF Score

Get the complete analysis for OSL:PRS

Graham Number is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

kr4.50
Price
kr4.78
GF Value