Macarthur MineralsMMSDF Operating Margin % is -20,433.33% as of Sep. 2025. The stock has 2 warning signs investors should review. Among 841 Metals & Mining companies, Macarthur Minerals ranks worse than 98.1% 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.
Macarthur Minerals Operating Margin % Related Terms
Macarthur Minerals Operating Margin % Historical Data
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The historical data trend for Macarthur Minerals'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.
For the Other Industrial Metals & Mining subindustry, Macarthur Minerals'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.
Macarthur Minerals Operating Margin % vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Macarthur Minerals's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Macarthur Minerals'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.
Macarthur Minerals's Operating Margin % for the fiscal year that ended in Mar. 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.
What does a Operating Margin % of -20,433.33% mean?
Macarthur Minerals (MMSDF) has a Operating Margin % of -20,433.33% as of Sep. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Macarthur Minerals and its competitors. According to the industry distribution chart, Macarthur Minerals ranks #825 out of 841 companies in the Metals & Mining industry, placing it in the top 98.1%.
Is Macarthur Minerals' Operating Margin % too high?
Macarthur Minerals' current Operating Margin % is -20,433.33%. Based on the distribution chart, Macarthur Minerals ranks #825 out of 841 companies in the Metals & Mining industry, which is in the bottom quartile relative to peers.
How does Macarthur Minerals' Operating Margin % compare to competitors?
According to the Metals & Mining industry distribution chart, Macarthur Minerals ranks #825 out of 841 companies for Operating Margin %. This places Macarthur Minerals in the lower half of its industry. The industry median Operating Margin % is 5.72. 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. 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 Macarthur Minerals 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. Macarthur Minerals's current Operating Margin % is -20,433.33%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Macarthur Minerals stock overvalued right now?
Macarthur Minerals (MMSDF) has a current Operating Margin % of -20,433.33%. The current Operating Margin % is -20,433.33%. 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 Macarthur Minerals (MMSDF), the current Operating Margin % is -20,433.33% as of Sep. 2025. 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.
Macarthur Minerals Ltd is an exploration and development company. The company is focused on identifying gold, nickel and developing high-grade lithium, as well as countercyclical investments with lithium exploration interests in Australia and Nevada. In addition, the Company has three iron ore projects in the Yilgarn region of Western Australia. The Company also has two exploration project areas in the Pilbara, Western Australia targeting iron ore.
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