STMNF (Sumitomo Metal Mining Co) Market Cap: $13,719 Mil (As of Jun. 24, 2026)


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 Market Cap?

Sumitomo Metal Mining Co STMNF 78 Market Cap is $13,719 Mil as of Jun. 24, 2026. 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 2,687 Metals & Mining companies, Sumitomo Metal Mining Co ranks better than 97.84% on this metric.

Market cap is the total market value to buy the whole company. It is equal to the share price times the number of Shares Outstanding (EOP). Sumitomo Metal Mining Co's share price for the quarter that ended in Mar. 2026 was $63.35. Sumitomo Metal Mining Co's Shares Outstanding (EOP) for the quarter that ended in Mar. 2026 was 271 Mil. Therefore, Sumitomo Metal Mining Co's market cap for the quarter that ended in Mar. 2026 was $17,139 Mil.

Sumitomo Metal Mining Co's quarterly market cap increased from Sep. 2025 ($6,223 Mil) to Dec. 2025 ($11,323 Mil) and increased from Dec. 2025 ($11,323 Mil) to Mar. 2026 ($17,139 Mil).

Sumitomo Metal Mining Co's annual market cap declined from Mar. 2024 ($7,401 Mil) to Mar. 2025 ($6,639 Mil) but then increased from Mar. 2025 ($6,639 Mil) to Mar. 2026 ($17,139 Mil).

Enterprise Value is the theoretical takeover price. It is more comprehensive than market capitalization (market cap), which only includes common equity. Enterprise Value is calculated as the market cap plus debt and minority interest and preferred shares, minus total cash and cash equivalents. Sumitomo Metal Mining Co's Enterprise Value for Today is $18,338 Mil.


Sumitomo Metal Mining Co  (OTCPK:STMNF) Market Cap Explanation

Market cap is not the real price you pay for a company. If you buy the company and become its owner, you become the owner of the cash the company has, and you also assume the company’s debt. The real price you pay is the Enterprise Value.

Warren Buffett uses the ratio of total market cap of all public traded companies over GDP to measure if the market is expensive. As of April 2012, the US total market cap is about $14.7 trillion, while the US GDP is about $15 trillion. The market was modestly overvalued.


Sumitomo Metal Mining Co Market Cap Related Terms


Sumitomo Metal Mining Co Market Cap Historical Data

* Premium members only.

The historical data trend for Sumitomo Metal Mining Co's Market Cap 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 Market Cap Chart

Sumitomo Metal Mining Co Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Market Cap
Get a 7-Day Free Trial Premium Member Only Premium Member Only 14,342.94 10,495.20 7,400.66 6,638.98 17,139.34

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
Market Cap 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 6,638.98 5,176.08 6,222.70 11,322.60 17,139.34

Sumitomo Metal Mining Co Market Cap Competitor Comparison

For the Other Industrial Metals & Mining subindustry, Sumitomo Metal Mining Co's Market Cap, along with its competitors' market caps and Market Cap 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 Market Cap vs Metals & Mining Industry

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

* The bar in red indicates where Sumitomo Metal Mining Co's Market Cap falls into.


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

Market cap is the short version of market capitalization. It is the total market value to buy the whole company. It is equal to the share price times the number of shares outstanding.

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

Market Cap (A: Mar. 2026 )=Share Price (A: Mar. 2026 )*Shares Outstanding (EOP) (A: Mar. 2026 )
=$63.35*270.550
=$17,139

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

Market Cap (Q: Mar. 2026 )=Share Price (Q: Mar. 2026 )*Shares Outstanding (EOP) (Q: Mar. 2026 )
=$63.35*270.550
=$17,139

* 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 Market Cap →
What does a Market Cap of $13,719 Mil mean?
Sumitomo Metal Mining Co (STMNF) has a Market Cap of $13,719 Mil as of Jun. 24, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Sumitomo Metal Mining Co and its competitors. According to the industry distribution chart, Sumitomo Metal Mining Co ranks #58 out of 2687 companies in the Metals & Mining industry, placing it in the top 2.2%.
Is Sumitomo Metal Mining Co's Market Cap too high?
Sumitomo Metal Mining Co's current Market Cap is $13,719 Mil. The Metals & Mining industry median Market Cap is 22.28. Sumitomo Metal Mining Co's value of $13,719 Mil is 61486.5% above this industry median. Based on the distribution chart, Sumitomo Metal Mining Co ranks #58 out of 2687 companies in the Metals & Mining industry, which is in the top quartile — a strong position relative to peers. 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 Market Cap compare to competitors?
According to the Metals & Mining industry distribution chart, Sumitomo Metal Mining Co ranks #58 out of 2687 companies for Market Cap. This places Sumitomo Metal Mining Co in the top 2% of its industry — outperforming the majority of peers. The industry median Market Cap is 22.28. Sumitomo Metal Mining Co's value of $13,719 Mil is 61486.5% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Market Cap for a Metals & Mining company?
The median Market Cap among Metals & Mining companies is 22.28, based on 2,687 companies in the industry. Companies in the top quartile (top 25%) have a Market Cap significantly above this median, while those in the bottom quartile fall well below. However, Market Cap should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sumitomo Metal Mining Co's current Market Cap of $13,719 Mil is 61486.5% 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 Market Cap mean?
A high Market Cap can signal that a stock is expensive relative to its fundamentals. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Sumitomo Metal Mining Co and its competitors. For the Metals & Mining industry, the median Market Cap is 22.28 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sumitomo Metal Mining Co's current Market Cap is $13,719 Mil. 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 Market Cap is $13,719 Mil and 61486.5% above the Metals & Mining industry median of 22.28. 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 Market Cap calculated?
Market Cap is calculated from a company's financial statements. For Sumitomo Metal Mining Co (STMNF), the current Market Cap is $13,719 Mil as of Jun. 24, 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:

  • Market Cap: $13,719 Mil
  • GF Value™: $39.25 vs. price of $48.99 (24.8% above fair value)
  • GF Score™: 78/100 with 6 warning signs
  • Industry Position: 61486.5% above the Metals & Mining median (#58 of 2687)

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

$48.99
Price
$39.25
GF Value