GRSFF (Greencastle Resources) ROC %: -1,259.89% (As of Mar. 2026)


What is Greencastle Resources ROC %?

Greencastle Resources GRSFF ROC % is -1,259.89% as of Mar. 2026. The stock has 6 warning signs investors should review.

ROC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROIC %. Greencastle Resources's annualized return on capital (ROC %) for the quarter that ended in Mar. 2026 was -1,259.89%.

As of today (2026-07-04), Greencastle Resources's WACC % is 2.62%. Greencastle Resources's ROC % is -239.04% (calculated using TTM income statement data). Greencastle Resources earns returns that do not match up to its cost of capital. It will destroy value as it grows.


Greencastle Resources  (OTCPK:GRSFF) ROC % Explanation

ROC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROIC %. The reason book values of debt and equity are used is because the book values are the capital the company received when issuing the debt or receiving the equity investments.

There are four key components to this definition. The first is the use of operating income or EBIT rather than net income in the numerator. The second is the tax adjustment to this operating income or EBIT, computed as a hypothetical tax based on an effective or marginal tax rate. The third is the use of book values for invested capital, rather than market values. The final is the timing difference; the capital invested is from the end of the prior year whereas the operating income or EBIT is the current year's number.

Why is ROC % important?

Because it costs money to raise capital. A firm that generates higher returns on investment than it costs the company to raise the capital needed for that investment is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases, whereas a firm that earns returns that do not match up to its cost of capital will destroy value as it grows.

As of today, Greencastle Resources's WACC % is 2.62%. Greencastle Resources's ROC % is -239.04% (calculated using TTM income statement data). Greencastle Resources earns returns that do not match up to its cost of capital. It will destroy value as it grows.


Be Aware

Like ROE % and ROA %, ROC % is calculated with only 12 months of data. Fluctuations in the company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective.


Greencastle Resources ROC % Related Terms


Greencastle Resources ROC % Historical Data

* Premium members only.

The historical data trend for Greencastle Resources's ROC % 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.

Greencastle Resources ROC % Chart

Greencastle Resources Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
ROC %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -57.02 -309.89 -110.75 -80.31 -96.25

Greencastle Resources Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
ROC % 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 -79.79 -68.22 -69.72 -83.75 -1,259.89

Greencastle Resources ROC % Calculation

Greencastle Resources's annualized Return on Capital (ROC %) for the fiscal year that ended in Dec. 2025 is calculated as:

ROC % (A: Dec. 2025 )
=NOPAT/Average Invested Capital
=Operating Income * ( 1 - Tax Rate % )/( (Invested Capital (A: Dec. 2024 ) + Invested Capital (A: Dec. 2025 ))/ count )
=-0.308 * ( 1 - 0% )/( (0.374 + 0.266)/ 2 )
=-0.308/0.32
=-96.25 %

where

Greencastle Resources's annualized Return on Capital (ROC %) for the quarter that ended in Mar. 2026 is calculated as:

ROC % (Q: Mar. 2026 )
=NOPAT/Average Invested Capital
=Operating Income * ( 1 - Tax Rate % )/( (Invested Capital (Q: Dec. 2025 ) + Invested Capital (Q: Mar. 2026 ))/ count )
=-2.356 * ( 1 - 0% )/( (0.266 + 0.108)/ 2 )
=-2.356/0.187
=-1,259.89 %

where

Note: The Operating Income data used here is four times the quarterly (Mar. 2026) data. The tax rate is limited to between 0% and 100%.

* 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 ROC % →
What does a ROC % of -1,259.89% mean?
Greencastle Resources (GRSFF) has a ROC % of -1,259.89% as of Mar. 2026. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on Greencastle Resources and its competitors.
Is Greencastle Resources' ROC % too high?
Greencastle Resources' current ROC % is -1,259.89%.
How does Greencastle Resources' ROC % compare to COP and EOG?
Greencastle Resources' ROC % of -1,259.89% can be compared against companies in the Oil & Gas industry. The industry median ROC % is 3.65. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROC % for an Oil & Gas company?
The median ROC % among Oil & Gas companies is 3.65, based on 999 companies in the industry. Companies in the top quartile (top 25%) have a ROC % significantly above this median, while those in the bottom quartile fall well below. However, ROC % 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 ROC % mean?
A high ROC % can signal that a stock is expensive relative to its fundamentals. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on Greencastle Resources and its competitors. For the Oil & Gas industry, the median ROC % is 3.65 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Greencastle Resources's current ROC % is -1,259.89%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Greencastle Resources stock overvalued right now?
Based on GuruFocus' analysis, Greencastle Resources (GRSFF) is currently considered Possible Value Trap. The stock's GF Value™ is $0.03, compared to a current price of $0.01 — trading 76% below its estimated fair value. The current ROC % is -1,259.89%. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROC % calculated?
ROC % is calculated from a company's financial statements. For Greencastle Resources (GRSFF), the current ROC % is -1,259.89% 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.

Greencastle Resources Business Description

Industry EnergyOil & Gas
Other Exchanges VGN:Canada
Address 82 Richmond Street East, Suite 200, The Canadian Venture Building, Toronto, ON, CAN, M5C 1P1
Greencastle Resources Ltd is a diversified company with interests in gold and base metals exploration and oil and gas exploration and royalties, as well as in strategic and non-strategic investments in other companies that are traded on the North American exchanges. The company's reportable segments include Investments in Private and Public companies, Oil and Gas Interests, Mining Interests. Its investment segment comprises its investment in marketable securities and investment in private and public companies. The oil and gas segment comprises its oil and gas interests. The mining segment comprises its mining interests in Canada and in the USA.