STMNF (Sumitomo Metal Mining Co) Change In Inventory: $-1,099 Mil (TTM As of Mar. 2026)


STMNF Sumitomo Metal Mining Co Ltd STMNF
78 GF Score
Price $51.15
GF Value $39.37
Valuation Modestly Overvalued
! 6 Warning Signs
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What is Sumitomo Metal Mining Co Change In Inventory?

Sumitomo Metal Mining Co STMNF 78 Change In Inventory is $-1,099 Mil as of Mar. 2026. GuruFocus rates STMNF with a GF Score™ of 78/100 and a GF Value™ of $39.37 (Modestly Overvalued). The stock has 6 warning signs investors should review.

Sumitomo Metal Mining Co's change in inventory for the quarter that ended in Mar. 2026 was $-545 Mil. It means Sumitomo Metal Mining Co's inventory increased by $545 Mil from Dec. 2025 to Mar. 2026 .

Sumitomo Metal Mining Co's change in inventory for the fiscal year that ended in Mar. 2026 was $-1,074 Mil. It means Sumitomo Metal Mining Co's inventory increased by $1,074 Mil from Mar. 2025 to Mar. 2026 .

Sumitomo Metal Mining Co's Total Inventories for the quarter that ended in Mar. 2026 was $4,666 Mil.

Days Inventory indicates the number of days of goods in sales that a company has in the inventory. Sumitomo Metal Mining Co's Days Inventory for the quarter that ended in Mar. 2026 was 164.80.

Inventory Turnover measures how fast the company turns over its inventory within a year. Sumitomo Metal Mining Co's Inventory Turnover for the quarter that ended in Mar. 2026 was 0.55.

Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue. Sumitomo Metal Mining Co's Inventory-to-Revenue for the quarter that ended in Mar. 2026 was 1.43.

Sumitomo Metal Mining Co  (OTCPK:STMNF) Change In Inventory Explanation

1. Days Inventory indicates the number of days of goods in sales that a company has in the inventory.

Sumitomo Metal Mining Co's Days Inventory for the quarter that ended in is calculated as:

Days Inventory=Average Total Inventories/Cost of Goods Sold*Days in Period
=4419.558/2447.141*365 / 4
=164.80

2. Inventory Turnover measures how fast the company turns over its inventory within a year.

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

Inventory Turnover=Cost of Goods Sold / Average Total Inventories
=2447.141 / 4419.558
=0.55

3. Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.

Sumitomo Metal Mining Co's Inventory to Revenue for the quarter that ended in Mar. 2026 is calculated as

Inventory-to-Revenue=Average Total Inventories / Revenue
=4419.558 / 3093.374
=1.43

* 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 Change In Inventory Related Terms

Sumitomo Metal Mining Co Change In Inventory Historical Data

* Premium members only.

The historical data trend for Sumitomo Metal Mining Co's Change In Inventory 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 Change In Inventory Chart

Sumitomo Metal Mining Co Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Change In Inventory
Get a 7-Day Free Trial Premium Member Only Premium Member Only -781.91 -1,000.36 292.69 -348.84 -1,074.00

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
Change In Inventory 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 -223.93 -182.77 -38.91 -332.46 -544.67
STMNF
78GF Score
Sumitomo Metal Mining Co Ltd STMNF
Change In Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
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Sumitomo Metal Mining Co Change In Inventory Calculation

Change In Inventory is the difference between last period's ending inventory and the current period's ending inventory.

Change In Inventory for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was $-1,099 Mil.

* 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 Change In Inventory →
What does a Change In Inventory of $-1,099 Mil mean?
Sumitomo Metal Mining Co (STMNF) has a Change In Inventory of $-1,099 Mil as of Mar. 2026. Change in Inventory is the difference between current-period inventory and past-period inventory. View historical data for Sumitomo Metal Mining Co and its competitors.
Is Sumitomo Metal Mining Co's Change In Inventory too high?
Sumitomo Metal Mining Co's current Change In Inventory is $-1,099 Mil. 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 Change In Inventory compare to competitors?
Sumitomo Metal Mining Co's Change In Inventory of $-1,099 Mil can be compared against companies in the Metals & Mining industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Change In Inventory for a Metals & Mining company?
A good Change In Inventory depends on the Metals & Mining industry context. However, Change In Inventory 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 Change In Inventory mean?
A high Change In Inventory can signal that a stock is expensive relative to its fundamentals. Change in Inventory is the difference between current-period inventory and past-period inventory. View historical data for Sumitomo Metal Mining Co and its competitors. Sumitomo Metal Mining Co's current Change In Inventory is $-1,099 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 $39.37, compared to a current price of $51.15 — trading 29.9% above its estimated fair value. The current Change In Inventory is $-1,099 Mil. 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 Change In Inventory calculated?
Change In Inventory is calculated from a company's financial statements. For Sumitomo Metal Mining Co (STMNF), the current Change In Inventory is $-1,099 Mil 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 $51.15 is trading 29.9% above its estimated GF Value™ of $39.37. GuruFocus considers Sumitomo Metal Mining Co to be Modestly Overvalued.

Key valuation signals for STMNF:

  • Change In Inventory: $-1,099 Mil
  • GF Value™: $39.37 vs. price of $51.15 (29.9% above fair value)
  • GF Score™: 78/100 with 6 warning signs

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

$51.15
Price
$39.37
GF Value