GMTLF (Guardian Metal Resources) Operating Income: $-6.52 Mil (TTM As of Dec. 2025)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

GMTLF Guardian Metal Resources PLC GMTLF
13 GF Score
Price $2.15
! 2 Warning Signs
View Full Analysis

What is Guardian Metal Resources Operating Income?

Guardian Metal Resources GMTLF -3.15% 13 Operating Income is $-6.52 Mil as of Dec. 2025. GuruFocus rates GMTLF with a GF Score™ of 13/100. The stock has 2 warning signs investors should review.

Guardian Metal Resources's Operating Income for the six months ended in Dec. 2025 was $-4.79 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was $-6.52 Mil.

Operating Margin % is calculated as Operating Income divided by its Revenue. Guardian Metal Resources's Operating Income for the six months ended in Dec. 2025 was $-4.79 Mil. Guardian Metal Resources's Revenue for the six months ended in Dec. 2025 was $0.00 Mil. Therefore, Guardian Metal Resources's Operating Margin % for the quarter that ended in Dec. 2025 was %.

Guardian Metal Resources's 5-Year average Growth Rate for Operating Margin % was 0.00% per year.

Operating Income or EBIT is linked to Return on Capital for both regular definition and Joel Greenblatt's definition. Guardian Metal Resources's annualized ROC % for the quarter that ended in Dec. 2025 was -42.31%. Guardian Metal Resources's annualized ROC (Joel Greenblatt) % for the quarter that ended in Dec. 2025 was -42.87%.

Guardian Metal Resources  (OTCPK:GMTLF) Operating Income Explanation

1. Operating Income or EBIT is linked to Return on Capital for both regular definition and Joel Greenblatt's definition.

Guardian Metal Resources's annualized ROC % for the quarter that ended in Dec. 2025 is calculated as:

ROC % (Q: Dec. 2025 )
=NOPAT/Average Invested Capital
=Operating Income * ( 1 - Tax Rate % )/( (Invested Capital (Q: Jun. 2025 ) + Invested Capital (Q: Dec. 2025 ))/ count )
=-9.584 * ( 1 - 0% )/( (18.477 + 26.832)/ 2 )
=-9.584/22.6545
=-42.31 %

where

Invested Capital(Q: Jun. 2025 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=19.954 - 1.205 - ( 1.873 - max(0, 1.776 - 2.048+1.873))
=18.477

Invested Capital(Q: Dec. 2025 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=37.639 - 2.896 - ( 10.562 - max(0, 2.896 - 10.807+10.562))
=26.832

Note: The Operating Income data used here is two times the semi-annual (Dec. 2025) data.

2. Joel Greenblatt's definition of Return on Capital:

Guardian Metal Resources's annualized ROC (Joel Greenblatt) % for the quarter that ended in Dec. 2025 is calculated as:

ROC (Joel Greenblatt) %(Q: Dec. 2025 )
=EBIT/Average of (Net fixed Assets + Net Working Capital)
=EBIT/Average of (Property, Plant and Equipment+Net Working Capital)
     Q: Jun. 2025  Q: Dec. 2025
=EBIT/( ( (Property, Plant and Equipment + Net Working Capital) + (Property, Plant and Equipment + Net Working Capital) )/ count )
=-9.584/( ( (17.906 + max(-1.726, 0)) + (26.807 + max(-2.896, 0)) )/ 2 )
=-9.584/( ( 17.906 + 26.807 )/ 2 )
=-9.584/22.3565
=-42.87 %

where Working Capital is:

Working Capital(Q: Jun. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(0 + 0 + 0.05) - (1.205 + 0 + 0.571)
=-1.726

Working Capital(Q: Dec. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(0 + 0 + 1.7763568394003E-15) - (2.896 + 0 + 0)
=-2.896

When net working capital is negative, 0 is used.

Note: The EBIT data used here is two times the semi-annual (Dec. 2025) EBIT data.

3. Operating Income is also linked to Operating Margin %:

Guardian Metal Resources's Operating Margin % for the quarter that ended in Dec. 2025 is calculated as:

Operating Margin %=Operating Income (Q: Dec. 2025 )/Revenue (Q: Dec. 2025 )
=-4.792/0
= %

* 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.

4. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Operating Income growth rate using Operating Income per share data.

Be Aware

Compared with a company's EBITDA margin, 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 Nokia's Operating Margin had already been in decline since 2002, although its earnings per share 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.

Guardian Metal Resources Operating Income Related Terms

Guardian Metal Resources Operating Income Historical Data

* Premium members only.

The historical data trend for Guardian Metal Resources's Operating Income 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.

Guardian Metal Resources Operating Income Chart

Guardian Metal Resources Annual Data
Trend Jun22 Jun23 Jun24 Jun25
Operating Income
0.00 -0.85 -1.38 -2.72

Guardian Metal Resources Semi-Annual Data
Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Operating Income Get a 7-Day Free Trial Premium Member Only -0.57 -0.81 -0.99 -1.73 -4.79
GMTLF
13GF Score
Guardian Metal Resources PLC GMTLF
Operating Income is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Guardian Metal Resources Operating Income Calculation

Operating Income, is the profit a company earned through operations. All expenses, including cash expenses such as cost of goods sold (COGS), research & development, wages, and non-cash expenses, such as depreciation, depletion and amortization, have been deducted from the sales.

Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 adds up the semi-annually data reported by the company within the most recent 12 months, which was $-6.52 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 Operating Income →
What does a Operating Income of $-6.52 Mil mean?
Guardian Metal Resources (GMTLF) has a Operating Income of $-6.52 Mil as of Dec. 2025. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on Guardian Metal Resources and its competitors.
Is Guardian Metal Resources' Operating Income too high?
Guardian Metal Resources' current Operating Income is $-6.52 Mil. Overall, Guardian Metal Resources has a GF Score™ of 13/100, reflecting its overall financial health beyond just this single metric.
How does Guardian Metal Resources' Operating Income compare to HL?
Guardian Metal Resources' Operating Income of $-6.52 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 Operating Income for a Metals & Mining company?
A good Operating Income depends on the Metals & Mining industry context. However, Operating Income 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 Income mean?
A high Operating Income can signal that a stock is expensive relative to its fundamentals. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on Guardian Metal Resources and its competitors. Guardian Metal Resources's current Operating Income is $-6.52 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Guardian Metal Resources stock overvalued right now?
Guardian Metal Resources (GMTLF) has a current Operating Income of $-6.52 Mil. The current Operating Income is $-6.52 Mil. Guardian Metal Resources' overall GF Score™ is 13/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Income calculated?
Operating Income is calculated from a company's financial statements. For Guardian Metal Resources (GMTLF), the current Operating Income is $-6.52 Mil as of Dec. 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.

Guardian Metal Resources Business Description

Other Exchanges GMTL:USAGMET:UK8TM:Germany
Address 25 Eccleston Place, London Wall, London, GBR, SW1W 9NF
Guardian Metal Resources PLC focuses on metals exploration and development, with a focus on precious metals exploration in North America. The Company has one business segment, which is the exploration and evaluation of mineral resources in Nevada, USA. Its exploration projects comprise the Pilot Mountain Project, Tempiute Project, Golconda Summit Project, Stonewall Project, and Garfield Project, and the Group is the operator of the Golconda Summit Project.
13GF Score

Get the complete analysis for GMTLF

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

$2.15
Price