PT Bumi Resources Minerals TbkSTU:BUR -13.79%92 Operating Margin % is 41.15% as of Mar. 2026, which is 1139% above its 10-year median of 3.32. GuruFocus rates STU:BUR with a GF Score™ of 92/100 and a GF Value™ of €0.05 (Significantly Undervalued). The stock has 4 warning signs investors should review. Among 841 Metals & Mining companies, PT Bumi Resources Minerals Tbk ranks better than 84.07% on this metric.
PT Bumi Resources Minerals Tbk (STU:BUR) 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.
PT Bumi Resources Minerals Tbk Operating Margin % Related Terms
PT Bumi Resources Minerals Tbk Operating Margin % Historical 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.
PT Bumi Resources Minerals Tbk Operating Margin % Chart
PT Bumi Resources Minerals Tbk Operating Margin % Competitor Comparison
For the Other Industrial Metals & Mining subindustry, PT Bumi Resources Minerals Tbk'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.
PT Bumi Resources Minerals Tbk Operating Margin % vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, PT Bumi Resources Minerals Tbk's Operating Margin % distribution charts can be found below:
* The bar in red indicates where PT Bumi Resources Minerals Tbk's Operating Margin % falls into.
PT Bumi Resources Minerals Tbk Operating Margin % Calculation
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.
* 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.
PT Bumi Resources Minerals Tbk (STU:BUR) has a Operating Margin % of 41.15% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on PT Bumi Resources Minerals Tbk and its competitors. This is 1139% above median its historical median of 3.32. According to the industry distribution chart, PT Bumi Resources Minerals Tbk ranks #134 out of 841 companies in the Metals & Mining industry, placing it in the top 15.9%.
Is PT Bumi Resources Minerals Tbk's Operating Margin % too high?
PT Bumi Resources Minerals Tbk's current Operating Margin % of 41.15% is 1139% above median its 10-year median of 3.32. The Metals & Mining industry median Operating Margin % is 5.72. PT Bumi Resources Minerals Tbk's value of 41.15% is 619.4% above this industry median. Based on the distribution chart, PT Bumi Resources Minerals Tbk ranks #134 out of 841 companies in the Metals & Mining industry, which is in the top quartile — a strong position relative to peers. Overall, PT Bumi Resources Minerals Tbk has a GF Score™ of 92/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does PT Bumi Resources Minerals Tbk's Operating Margin % compare to competitors?
According to the Metals & Mining industry distribution chart, PT Bumi Resources Minerals Tbk ranks #134 out of 841 companies for Operating Margin %. This places PT Bumi Resources Minerals Tbk in the top 16% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 5.72. PT Bumi Resources Minerals Tbk's value of 41.15% is 619.4% above this benchmark. While the company's 10-year median is 3.32 vs. the industry median of 5.72, PT Bumi Resources Minerals Tbk 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 a Metals & Mining company?
The median Operating Margin % among Metals & Mining companies is 5.72, based on 841 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. PT Bumi Resources Minerals Tbk's current Operating Margin % of 41.15% is 619.4% 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 PT Bumi Resources Minerals Tbk and its competitors. For the Metals & Mining industry, the median Operating Margin % is 5.72 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. PT Bumi Resources Minerals Tbk's current Operating Margin % is 41.15%, which is 1139% above median its own 10-year median of 3.32. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is PT Bumi Resources Minerals Tbk stock overvalued right now?
Based on GuruFocus' analysis, PT Bumi Resources Minerals Tbk (STU:BUR) is currently considered Significantly Undervalued. The stock's GF Value™ is €0.05, compared to a current price of €0.03 — trading 50% below its estimated fair value. The current Operating Margin % is 41.15%, which is 1139% above median its 10-year median of 3.32 and 619.4% above the Metals & Mining industry median of 5.72. PT Bumi Resources Minerals Tbk's overall GF Score™ is 92/100 with 4 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 PT Bumi Resources Minerals Tbk (STU:BUR), the current Operating Margin % is 41.15% 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 PT Bumi Resources Minerals Tbk (STU:BUR) Overvalued in 2026?
Based on GuruFocus' analysis, PT Bumi Resources Minerals Tbk stock appears to be undervalued.
The current stock price of €0.03 is trading 50% below its estimated GF Value™ of €0.05.
GuruFocus considers PT Bumi Resources Minerals Tbk to be Significantly Undervalued.
Key valuation signals for STU:BUR:
Operating Margin %: 41.15% (1139% above median its 10-year median of 3.32)
GF Value™: €0.05 vs. price of €0.03 (50% below fair value)
Industry Position: 619.4% above the Metals & Mining median (#134 of 841)
No single metric tells the full story. See the STU:BUR stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
PT Bumi Resources Minerals Tbk Business Description
PT Bumi Resources Minerals Tbk is an Indonesian company engaged in mining. The company's assets include copper, gold, zinc, lead, and other valuable metals. The group classifies its mining business into three core business segments, which include Mining and services, investments, and holding companies. The investments segment consists of investments in shares of stock, funding, and financing. The holding company's activities include the setup of joint capital for the development of mines. Its mining and services segment of metal minerals is under exploration and development stages.
92GF Score
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