PT Sinar Terang Mandiri TbkISX:MINE -2.83%12 Operating Margin % is 13.03% as of Mar. 2026, which is 14% below its 10-year median of 15.09. GuruFocus rates ISX:MINE with a GF Score™ of 12/100. The stock has 2 warning signs investors should review. Among 841 Metals & Mining companies, PT Sinar Terang Mandiri Tbk ranks better than 60.76% on this metric.
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 Sinar Terang Mandiri Tbk Operating Margin % Related Terms
PT Sinar Terang Mandiri 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.
For the Other Industrial Metals & Mining subindustry, PT Sinar Terang Mandiri 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 Sinar Terang Mandiri Tbk Operating Margin % vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, PT Sinar Terang Mandiri Tbk's Operating Margin % distribution charts can be found below:
* The bar in red indicates where PT Sinar Terang Mandiri Tbk'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.
PT Sinar Terang Mandiri Tbk'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.
PT Sinar Terang Mandiri Tbk (ISX:MINE) has a Operating Margin % of 13.03% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on PT Sinar Terang Mandiri Tbk and its competitors. This is 14% below median its historical median of 15.09. Over the past decade, PT Sinar Terang Mandiri Tbk's Operating Margin % has ranged from 11.62 to 21.05. According to the industry distribution chart, PT Sinar Terang Mandiri Tbk ranks #330 out of 841 companies in the Metals & Mining industry, placing it in the top 39.2%.
Is PT Sinar Terang Mandiri Tbk's Operating Margin % too high?
PT Sinar Terang Mandiri Tbk's current Operating Margin % of 13.03% is 14% below median its 10-year median of 15.09. Over the past 10 years, this metric has ranged from a low of 11.62 to a high of 21.05. The Metals & Mining industry median Operating Margin % is 5.79. PT Sinar Terang Mandiri Tbk's value of 13.03% is 125% above this industry median. Based on the distribution chart, PT Sinar Terang Mandiri Tbk ranks #330 out of 841 companies in the Metals & Mining industry, which is above the industry midpoint. Overall, PT Sinar Terang Mandiri Tbk has a GF Score™ of 12/100, reflecting its overall financial health beyond just this single metric.
How does PT Sinar Terang Mandiri Tbk's Operating Margin % compare to competitors?
According to the Metals & Mining industry distribution chart, PT Sinar Terang Mandiri Tbk ranks #330 out of 841 companies for Operating Margin %. This puts PT Sinar Terang Mandiri Tbk in the upper half of its industry. The industry median Operating Margin % is 5.79. PT Sinar Terang Mandiri Tbk's value of 13.03% is 125% above this benchmark. Historically, PT Sinar Terang Mandiri Tbk's own Operating Margin % has ranged from 11.62 to 21.05 over the past decade. While the company's 10-year median is 15.09 vs. the industry median of 5.79, PT Sinar Terang Mandiri 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 5.79, 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 Sinar Terang Mandiri Tbk's current Operating Margin % of 13.03% is 125% 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 Sinar Terang Mandiri Tbk and its competitors. For the Metals & Mining industry, the median Operating Margin % is 5.79 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. PT Sinar Terang Mandiri Tbk's current Operating Margin % is 13.03%, which is 14% below median its own 10-year median of 15.09. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is PT Sinar Terang Mandiri Tbk stock overvalued right now?
PT Sinar Terang Mandiri Tbk (ISX:MINE) has a current Operating Margin % of 13.03%. The current Operating Margin % is 13.03%, which is 14% below median its 10-year median of 15.09 and 125% above the Metals & Mining industry median of 5.79. PT Sinar Terang Mandiri Tbk's overall GF Score™ is 12/100 with 2 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 Sinar Terang Mandiri Tbk (ISX:MINE), the current Operating Margin % is 13.03% 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.
AddressJl. Jendral Sudirman Kav. 52-53, Kecamatan Kebayoran Baru, Treasury Tower 5th Floor Unit G, District 8 SCBD Lot 28, Selatan, Jakarta, IDN, 12190
PT Sinar Terang Mandiri Tbk specializes in mining support services. The company offers a comprehensive range of services, including mine planning, mining infrastructure construction, mining operations, to mining product transportation (hauling, barging, and transshipment) as well as stone crushing and paving production. It is engaged in nickel mining support activities in Morowali, Central Sulawesi, and Weda, North Maluku. The company organizes its operations into two main segments: mining services and construction services.
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