Tamar Minerals (STU:LYC) OCF Margin %: 0.00% (As of Dec. 2025)


What is Tamar Minerals OCF Margin %?

Tamar Minerals STU:LYC OCF Margin % is 0.00% as of Dec. 2025. The stock has 2 warning signs investors should review. Among 845 Metals & Mining companies, Tamar Minerals ranks worse than 118343.08% on this metric.

OCF Margin % is calculated as Cash Flow from Operations divided by its Revenue. Tamar Minerals's Cash Flow from Operations for the six months ended in Dec. 2025 was €-0.29 Mil. Tamar Minerals's Revenue for the six months ended in Dec. 2025 was €0.00 Mil. Therefore, Tamar Minerals's OCF Margin % for the quarter that ended in Dec. 2025 was 0.00%.

As of today, Tamar Minerals's current OCF Yield % is -3.73%.

The historical rank and industry rank for Tamar Minerals's OCF Margin % or its related term are showing as below:


During the past 13 years, the highest OCF Margin % of Tamar Minerals was -40.72%. The lowest was -3841.30%. And the median was -615.63%.

STU:LYC's OCF Margin % is not ranked *
in the Metals & Mining industry.
Industry Median: 4.47
* Ranked among companies with meaningful OCF Margin % only.

Tamar Minerals OCF Margin % Related Terms

Tamar Minerals OCF Margin % Historical Data

* Premium members only.

The historical data trend for Tamar Minerals'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.

Tamar Minerals OCF Margin % Chart

Tamar Minerals Annual Data
Trend Dec13 Dec14 Dec15 Dec16 Jun19 Jun20 Jun21 Jun22 Jun23 Jun24
OCF Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -40.86 0.00 0.00 0.00 0.00

Tamar Minerals Semi-Annual Data
Jun14 Dec14 Jun15 Dec15 Jun16 Dec16 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Dec25
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 0.00 144.90 211.11 0.00 0.00

Tamar Minerals OCF Margin % Calculation

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

Tamar Minerals's OCF Margin for the fiscal year that ended in Jun. 2024 is calculated as

OCF Margin=Cash Flow from Operations (A: Jun. 2024 )/Revenue (A: Jun. 2024 )
=-0.065/0
= %

Tamar Minerals's OCF Margin for the quarter that ended in Dec. 2025 is calculated as

OCF Margin=Cash Flow from Operations (Q: Dec. 2025 )/Revenue (Q: Dec. 2025 )
=-0.293/0
= %

* 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.

Frequently Asked Questions Learn more about OCF Margin % →
What does a OCF Margin % of 0.00% mean?
Tamar Minerals (STU:LYC) has a OCF Margin % of 0.00% as of Dec. 2025. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on Tamar Minerals and its competitors. According to the industry distribution chart, Tamar Minerals ranks #999999 out of 845 companies in the Metals & Mining industry.
Is Tamar Minerals' OCF Margin % too high?
Tamar Minerals' current OCF Margin % is 0.00%. Based on the distribution chart, Tamar Minerals ranks #999999 out of 845 companies in the Metals & Mining industry, which is in the bottom quartile relative to peers.
How does Tamar Minerals' OCF Margin % compare to competitors?
According to the Metals & Mining industry distribution chart, Tamar Minerals ranks #999999 out of 845 companies for OCF Margin %. This places Tamar Minerals in the lower half of its industry. The industry median OCF Margin % is 4.47. 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 845 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. 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 Tamar Minerals 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. Tamar Minerals's current OCF Margin % is 0.00%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tamar Minerals stock overvalued right now?
Tamar Minerals (STU:LYC) has a current OCF Margin % of 0.00%. The current OCF Margin % is 0.00%. 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 Tamar Minerals (STU:LYC), the current OCF Margin % is 0.00% 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.

Tamar Minerals Business Description

Other Exchanges TMR:UK
Address 167-169 Great Portland Street, Fifth Floor, London, GBR, W1W 5PF
Tamar Minerals PLC is a mineral exploration company focused on delineating critical minerals in Devon and Cornwall. It has an experienced metals exploration and technology team and has worked around the world, reinterpreting historic exploration and mining data to identify ore zones. Its project includes the Specimen Hill copper-gold project. The Company holds three assets in the UK, two of which are options on mineral leases at Devon Great Consols and Great Wheal Vor. The Company operates in the United Kingdom and Australia.