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Prima Marine PCLBKK:PRM +1.10%96 ROC (Joel Greenblatt) % is 18.18% as of Mar. 2026, which is 3% below its 10-year median of 18.83. GuruFocus rates BKK:PRM with a GF Score™ of 96/100 and a GF Value™ of ฿7.88 (Modestly Overvalued). The stock has 8 warning signs investors should review. Among 997 Oil & Gas companies, Prima Marine PCL ranks better than 69.01% on this metric.
Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits). He defines ROC (Joel Greenblatt) % as EBIT divided by the total of Property, Plant and Equipment and net working capital. Prima Marine PCL's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was 18.18%.
The historical rank and industry rank for Prima Marine PCL's ROC (Joel Greenblatt) % or its related term are showing as below:
BKK:PRM'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: 14.3 Med: 18.83 Max: 25.42
Current: 16.45
During the past 12 years, Prima Marine PCL's highest ROC (Joel Greenblatt) % was 25.42%. The lowest was 14.30%. And the median was 18.83%.
BKK:PRM's ROC (Joel Greenblatt) % is ranked better than 69.01% of 997
companies
in the Oil & Gas industry
Industry Median: 8.55
vs BKK:PRM: 16.45
Prima Marine PCL's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was -3.70% per year.
Prima Marine PCL (BKK:PRM) ROC (Joel Greenblatt) % Explanation
The way Joel Greenblatt defines Return on Capital is a more accurate measure of how efficiently the company generates returns onthe capital actually invested in the business. EBIT is used instead of net income because the tax and interest payment may be affected by factors other than the core business operation. Intangible assets are not included in the calculation because they don't need to be replaced.
Prima Marine PCL ROC (Joel Greenblatt) % Related Terms
Prima Marine PCL ROC (Joel Greenblatt) % Historical Data
* Premium members only.
The historical data trend for Prima Marine PCL's ROC (Joel Greenblatt) % 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: ROC (Joel Greenblatt) % Comparison
For the Oil & Gas Midstream subindustry, Prima Marine PCL's ROC (Joel Greenblatt) %, along with its competitors' market caps and ROC (Joel Greenblatt) % 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 ROC (Joel Greenblatt) % vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Prima Marine PCL's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Prima Marine PCL's ROC (Joel Greenblatt) % falls into.
Prima Marine PCL ROC (Joel Greenblatt) % Calculation
Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits) . He defines Return on Capital as follows:
EBIT stands for Earnings Before Interest and Taxes.
Fixed Assets are also known as non-current assets. They include the Property, Plant and Equipment that the firm needs in its operation.
GuruFocus calculates net working capital as: (Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Deferred Revenue + Other Current Liabilities). We're trying to account for OPERATING assets and liabilities (part of daily business) when calculating working capital. Cash and marketable securities are considered NON-OPERATING assets and are not included in calculation. We will also back out all interest bearing debt, short term debt and the portion of long term debt that is due in the current period from the current liabilities. This debt will be considered when computing cost of capital and it would be inappropriate to count it twice.
Note:
The EBIT data used here is four times the quarterly (Mar. 2026) EBIT data.
* 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.
What does a ROC (Joel Greenblatt) % of 18.18% mean?
Prima Marine PCL (BKK:PRM) has a ROC (Joel Greenblatt) % of 18.18% as of Mar. 2026. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Prima Marine PCL and its competitors. This is near median its historical median of 18.83. Over the past decade, Prima Marine PCL's ROC (Joel Greenblatt) % has ranged from 14.30 to 25.42. According to the industry distribution chart, Prima Marine PCL ranks #309 out of 997 companies in the Oil & Gas industry, placing it in the top 31%.
Is Prima Marine PCL's ROC (Joel Greenblatt) % too high?
Prima Marine PCL's current ROC (Joel Greenblatt) % of 18.18% is near median its 10-year median of 18.83. Over the past 10 years, this metric has ranged from a low of 14.30 to a high of 25.42. The Oil & Gas industry median ROC (Joel Greenblatt) % is 8.55. Prima Marine PCL's value of 18.18% is 112.6% above this industry median. Based on the distribution chart, Prima Marine PCL ranks #309 out of 997 companies in the Oil & Gas industry, which is above the industry midpoint. Overall, Prima Marine PCL has a GF Score™ of 96/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Prima Marine PCL's ROC (Joel Greenblatt) % compare to WMB and EPD?
According to the Oil & Gas industry distribution chart, Prima Marine PCL ranks #309 out of 997 companies for ROC (Joel Greenblatt) %. This puts Prima Marine PCL in the upper half of its industry. The industry median ROC (Joel Greenblatt) % is 8.55. Prima Marine PCL's value of 18.18% is 112.6% above this benchmark. Historically, Prima Marine PCL's own ROC (Joel Greenblatt) % has ranged from 14.30 to 25.42 over the past decade. While the company's 10-year median is 18.83 vs. the industry median of 8.55, 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 ROC (Joel Greenblatt) % for an Oil & Gas company?
The median ROC (Joel Greenblatt) % among Oil & Gas companies is 8.55, based on 997 companies in the industry. Companies in the top quartile (top 25%) have a ROC (Joel Greenblatt) % significantly above this median, while those in the bottom quartile fall well below. However, ROC (Joel Greenblatt) % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Prima Marine PCL's current ROC (Joel Greenblatt) % of 18.18% is 112.6% 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 ROC (Joel Greenblatt) % mean?
A high ROC (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Prima Marine PCL and its competitors. For the Oil & Gas industry, the median ROC (Joel Greenblatt) % is 8.55 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Prima Marine PCL's current ROC (Joel Greenblatt) % is 18.18%, which is near median its own 10-year median of 18.83. 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 ฿7.88, compared to a current price of ฿9.20 — trading 16.8% above its estimated fair value. The current ROC (Joel Greenblatt) % is 18.18%, which is near median its 10-year median of 18.83 and 112.6% above the Oil & Gas industry median of 8.55. Prima Marine PCL's overall GF Score™ is 96/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROC (Joel Greenblatt) % calculated?
ROC (Joel Greenblatt) % is calculated from a company's financial statements. For Prima Marine PCL (BKK:PRM), the current ROC (Joel Greenblatt) % is 18.18% 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 ฿9.20 is trading 16.8% above its estimated GF Value™ of ฿7.88.
GuruFocus considers Prima Marine PCL to be Modestly Overvalued.
Key valuation signals for BKK:PRM:
ROC (Joel Greenblatt) %: 18.18% (near median its 10-year median of 18.83)
GF Value™: ฿7.88 vs. price of ฿9.20 (16.8% above fair value)
Industry Position: 112.6% above the Oil & Gas median (#309 of 997)
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.
96GF Score
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