Prima Marine PCLBKK:PRM +0.56%95 Operating Margin % is 25.81% as of Mar. 2026, which is 7% below its 10-year median of 27.74. GuruFocus rates BKK:PRM with a GF Score™ of 95/100 and a GF Value™ of ฿7.85 (Modestly Overvalued). The stock has 8 warning signs investors should review. Among 918 Oil & Gas companies, Prima Marine PCL ranks better than 82.68% on this metric.
Prima Marine PCL (BKK:PRM) Operating Margin % Explanation
Just like Gross Margin %, it is important to see a company maintains its operating margin over time. Among the same industry, a company with higher operating margin is more efficient in its operation. It is also more stable during industry slowdown or recessions. Peter Lynch prefers those with higher margins than those with lower margins.
Be Aware
Operating Margin % can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).
If a company is facing competition, its Operating Margin % may decline. Often the Operating Margin % declines well before the company's Revenue or even profit decline. Therefore, Operating Margin % is a very important indicator of whether the company is facing problems.
For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokias Operating Margin % had already been in decline since 2002, although its Earnings per Share (Diluted) were still rising. Investors who paid attention to Operating Margin % would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).
Therefore, Operating Margin % is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.
Prima Marine PCL Operating Margin % Related Terms
Prima Marine PCL Operating Margin % Historical Data
* Premium members only.
The historical data trend for Prima Marine PCL's Operating Margin % 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.
BKK:PRM vs WMB, EPD, KMI: Operating Margin % Comparison
For the Oil & Gas Midstream subindustry, Prima Marine PCL's Operating Margin %, along with its competitors' market caps and Operating Margin % 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.
Prima Marine PCL Operating Margin % vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Prima Marine PCL's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Prima Marine PCL's Operating Margin % falls into.
Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.
Prima Marine PCL's Operating Margin % for the fiscal year that ended in Dec. 2025 is calculated as
* 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.
Prima Marine PCL (BKK:PRM) has a Operating Margin % of 25.81% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Prima Marine PCL and its competitors. This is near median its historical median of 27.74. Over the past decade, Prima Marine PCL's Operating Margin % has ranged from 16.11 to 34.23. According to the industry distribution chart, Prima Marine PCL ranks #159 out of 918 companies in the Oil & Gas industry, placing it in the top 17.3%.
Is Prima Marine PCL's Operating Margin % too high?
Prima Marine PCL's current Operating Margin % of 25.81% is near median its 10-year median of 27.74. Over the past 10 years, this metric has ranged from a low of 16.11 to a high of 34.23. The Oil & Gas industry median Operating Margin % is 6.86. Prima Marine PCL's value of 25.81% is 276.2% above this industry median. Based on the distribution chart, Prima Marine PCL ranks #159 out of 918 companies in the Oil & Gas industry, which is in the top quartile — a strong position relative to peers. Overall, Prima Marine PCL has a GF Score™ of 95/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Prima Marine PCL's Operating Margin % compare to WMB and EPD?
According to the Oil & Gas industry distribution chart, Prima Marine PCL ranks #159 out of 918 companies for Operating Margin %. This places Prima Marine PCL in the top 17% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 6.86. Prima Marine PCL's value of 25.81% is 276.2% above this benchmark. Historically, Prima Marine PCL's own Operating Margin % has ranged from 16.11 to 34.23 over the past decade. While the company's 10-year median is 27.74 vs. the industry median of 6.86, Prima Marine PCL has consistently been above 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 Operating Margin % for an Oil & Gas company?
The median Operating Margin % among Oil & Gas companies is 6.86, based on 918 companies in the industry. Companies in the top quartile (top 25%) have a Operating Margin % significantly above this median, while those in the bottom quartile fall well below. However, Operating Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Prima Marine PCL's current Operating Margin % of 25.81% is 276.2% above 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 Operating Margin % mean?
A high Operating Margin % can signal that a stock is expensive relative to its fundamentals. Operating margin is the ratio of total operating income to net sales. View historical data on Prima Marine PCL and its competitors. For the Oil & Gas industry, the median Operating Margin % is 6.86 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Prima Marine PCL's current Operating Margin % is 25.81%, which is near median its own 10-year median of 27.74. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Prima Marine PCL stock overvalued right now?
Based on GuruFocus' analysis, Prima Marine PCL (BKK:PRM) is currently considered Modestly Overvalued. The stock's GF Value™ is ฿7.85, compared to a current price of ฿9.05 — trading 15.3% above its estimated fair value. The current Operating Margin % is 25.81%, which is near median its 10-year median of 27.74 and 276.2% above the Oil & Gas industry median of 6.86. Prima Marine PCL's overall GF Score™ is 95/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Margin % calculated?
Operating Margin % is calculated from a company's financial statements. For Prima Marine PCL (BKK:PRM), the current Operating Margin % is 25.81% 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 Prima Marine PCL (BKK:PRM) Overvalued in 2026?
Based on GuruFocus' analysis, Prima Marine PCL stock appears to be overvalued.
The current stock price of ฿9.05 is trading 15.3% above its estimated GF Value™ of ฿7.85.
GuruFocus considers Prima Marine PCL to be Modestly Overvalued.
Key valuation signals for BKK:PRM:
Operating Margin %: 25.81% (near median its 10-year median of 27.74)
GF Value™: ฿7.85 vs. price of ฿9.05 (15.3% above fair value)
Industry Position: 276.2% above the Oil & Gas median (#159 of 918)
No single metric tells the full story. See the BKK:PRM stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Prima Marine PCL is engaged in the marine transportation of petroleum and chemical products and in providing services that support offshore petroleum exploration and production, along with ship management. The company operates through four segments: marine transportation of petroleum and chemical products; storage of petroleum products; services supporting offshore exploration and production, including transportation of personnel and equipment and accommodation work barges; and ship management and related services such as ship agency, crew recruitment and transportation, operational support, business administration, procurement, marketing, financial consulting, and technical support. The company generates the majority of its revenue from Thailand.
95GF Score
Get the complete analysis for BKK:PRM
Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
BKK:PRM has been successfully added to your 
