STMNF (Sumitomo Metal Mining Co) OCF Margin %: 3.25% (As of Mar. 2026) — 66% Below Median


STMNF Sumitomo Metal Mining Co Ltd STMNF
78 GF Score
Price $48.99
GF Value $39.25
Valuation Modestly Overvalued
! 6 Warning Signs
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What is Sumitomo Metal Mining Co OCF Margin %?

Sumitomo Metal Mining Co STMNF 78 OCF Margin % is 3.25% as of Mar. 2026, which is 66% below its 10-year median of 9.64. GuruFocus rates STMNF with a GF Score™ of 78/100 and a GF Value™ of $39.25 (Modestly Overvalued). The stock has 6 warning signs investors should review. Among 846 Metals & Mining companies, Sumitomo Metal Mining Co ranks better than 53.19% on this metric.

OCF Margin % is calculated as Cash Flow from Operations divided by its Revenue. Sumitomo Metal Mining Co's Cash Flow from Operations for the three months ended in Mar. 2026 was $101 Mil. Sumitomo Metal Mining Co's Revenue for the three months ended in Mar. 2026 was $3,093 Mil. Therefore, Sumitomo Metal Mining Co's OCF Margin % for the quarter that ended in Mar. 2026 was 3.25%.

As of today, Sumitomo Metal Mining Co's current OCF Yield % is 4.40%.

The historical rank and industry rank for Sumitomo Metal Mining Co's OCF Margin % or its related term are showing as below:

STMNF' s OCF Margin % Range Over the Past 10 Years
Min: 5.57   Med: 9.64   Max: 16.03
Current: 5.81


During the past 13 years, the highest OCF Margin % of Sumitomo Metal Mining Co was 16.03%. The lowest was 5.57%. And the median was 9.64%.

STMNF's OCF Margin % is ranked better than
53.19% of 846 companies
in the Metals & Mining industry
Industry Median: 4.465 vs STMNF: 5.81


Sumitomo Metal Mining Co OCF Margin % Related Terms


Sumitomo Metal Mining Co OCF Margin % Historical Data

* Premium members only.

The historical data trend for Sumitomo Metal Mining Co's OCF 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.

Sumitomo Metal Mining Co OCF Margin % Chart

Sumitomo Metal Mining Co Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
OCF Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 12.67 8.46 14.58 9.39 5.85

Sumitomo Metal Mining Co Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
OCF Margin % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 20.60 -0.16 10.41 9.50 3.25

Sumitomo Metal Mining Co OCF Margin % Competitor Comparison

For the Other Industrial Metals & Mining subindustry, Sumitomo Metal Mining Co's OCF Margin %, along with its competitors' market caps and OCF 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.


Sumitomo Metal Mining Co OCF Margin % vs Metals & Mining Industry

For the Metals & Mining industry and Basic Materials sector, Sumitomo Metal Mining Co's OCF Margin % distribution charts can be found below:

* The bar in red indicates where Sumitomo Metal Mining Co's OCF Margin % falls into.


STMNF
78GF Score
Sumitomo Metal Mining Co Ltd STMNF
OCF Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
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Sumitomo Metal Mining Co OCF Margin % Calculation

OCF Margin % is the ratio of Cash Flow from Operations divided by net sales or Revenue, usually presented in percent.

Sumitomo Metal Mining Co's OCF Margin for the fiscal year that ended in Mar. 2026 is calculated as

OCF Margin=Cash Flow from Operations (A: Mar. 2026 )/Revenue (A: Mar. 2026 )
=641.595/10975.273
=5.85 %

Sumitomo Metal Mining Co's OCF Margin for the quarter that ended in Mar. 2026 is calculated as

OCF Margin=Cash Flow from Operations (Q: Mar. 2026 )/Revenue (Q: Mar. 2026 )
=100.572/3093.374
=3.25 %

* 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.

Frequently Asked Questions Learn more about OCF Margin % →
What does a OCF Margin % of 3.25% mean?
Sumitomo Metal Mining Co (STMNF) has a OCF Margin % of 3.25% as of Mar. 2026. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on Sumitomo Metal Mining Co and its competitors. This is 66% below median its historical median of 9.64. Over the past decade, Sumitomo Metal Mining Co's OCF Margin % has ranged from 5.57 to 16.03. According to the industry distribution chart, Sumitomo Metal Mining Co ranks #396 out of 846 companies in the Metals & Mining industry, placing it in the top 46.8%.
Is Sumitomo Metal Mining Co's OCF Margin % too high?
Sumitomo Metal Mining Co's current OCF Margin % of 3.25% is 66% below median its 10-year median of 9.64. Over the past 10 years, this metric has ranged from a low of 5.57 to a high of 16.03. The Metals & Mining industry median OCF Margin % is 4.47. Sumitomo Metal Mining Co's value of 3.25% is 27.2% below this industry median. Based on the distribution chart, Sumitomo Metal Mining Co ranks #396 out of 846 companies in the Metals & Mining industry, which is above the industry midpoint. Overall, Sumitomo Metal Mining Co has a GF Score™ of 78/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sumitomo Metal Mining Co's OCF Margin % compare to competitors?
According to the Metals & Mining industry distribution chart, Sumitomo Metal Mining Co ranks #396 out of 846 companies for OCF Margin %. This puts Sumitomo Metal Mining Co in the upper half of its industry. The industry median OCF Margin % is 4.47. Sumitomo Metal Mining Co's value of 3.25% is 27.2% below this benchmark. Historically, Sumitomo Metal Mining Co's own OCF Margin % has ranged from 5.57 to 16.03 over the past decade. While the company's 10-year median is 9.64 vs. the industry median of 4.47, Sumitomo Metal Mining Co has consistently been below 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 OCF Margin % for a Metals & Mining company?
The median OCF Margin % among Metals & Mining companies is 4.47, based on 846 companies in the industry. Companies in the top quartile (top 25%) have a OCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, OCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sumitomo Metal Mining Co's current OCF Margin % of 3.25% is 27.2% below 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 OCF Margin % mean?
A high OCF Margin % can signal that a stock is expensive relative to its fundamentals. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on Sumitomo Metal Mining Co and its competitors. For the Metals & Mining industry, the median OCF Margin % is 4.47 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sumitomo Metal Mining Co's current OCF Margin % is 3.25%, which is 66% below median its own 10-year median of 9.64. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sumitomo Metal Mining Co stock overvalued right now?
Based on GuruFocus' analysis, Sumitomo Metal Mining Co (STMNF) is currently considered Modestly Overvalued. The stock's GF Value™ is $39.25, compared to a current price of $48.99 — trading 24.8% above its estimated fair value. The current OCF Margin % is 3.25%, which is 66% below median its 10-year median of 9.64 and 27.2% below the Metals & Mining industry median of 4.47. Sumitomo Metal Mining Co's overall GF Score™ is 78/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is OCF Margin % calculated?
OCF Margin % is calculated from a company's financial statements. For Sumitomo Metal Mining Co (STMNF), the current OCF Margin % is 3.25% 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 Sumitomo Metal Mining Co (STMNF) Overvalued in 2026?

Based on GuruFocus' analysis, Sumitomo Metal Mining Co stock appears to be overvalued. The current stock price of $48.99 is trading 24.8% above its estimated GF Value™ of $39.25. GuruFocus considers Sumitomo Metal Mining Co to be Modestly Overvalued.

Key valuation signals for STMNF:

  • OCF Margin %: 3.25% (66% below median its 10-year median of 9.64)
  • GF Value™: $39.25 vs. price of $48.99 (24.8% above fair value)
  • GF Score™: 78/100 with 6 warning signs
  • Industry Position: 27.2% below the Metals & Mining median (#396 of 846)

No single metric tells the full story. See the STMNF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Sumitomo Metal Mining Co Business Description

Address 5-11-3 Shinbashi, Shinbashi Sumitomo Building, Minato-ku, Tokyo, JPN, 105-8716
Sumitomo Metal Mining Co Ltd is a Japan-based company engaged in the mining business. The company operates through three segments. The Material segment manufactures and sells battery materials, powder and crystalline materials, tape materials, catalysts, and related products. The Resource segment focuses on the exploration, development, production, and sale of nonferrous metal resources in Japan and overseas. The Smelting segment engages in the smelting and sale of copper, nickel, ferronickel, zinc, and precious metals, including gold, silver, platinum, and palladium. The Others segment covers real estate and engineering businesses. It generates the majority of its revenue from the Smelting segment.
78GF Score

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OCF Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$48.99
Price
$39.25
GF Value