Etherstack (ASX:ESK) ROC (Joel Greenblatt) %: -223.79% (As of Dec. 2025)


ASX:ESK Etherstack PLC ASX:ESK
44 GF Score
Price A$0.53
GF Value A$0.44
Valuation Modestly Overvalued
! 4 Warning Signs
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What is Etherstack ROC (Joel Greenblatt) %?

Etherstack ASX:ESK 44 ROC (Joel Greenblatt) % is -223.79% as of Dec. 2025. GuruFocus rates ASX:ESK with a GF Score™ of 44/100 and a GF Value™ of A$0.44 (Modestly Overvalued). The stock has 4 warning signs investors should review. Among 2,807 Software companies, Etherstack ranks worse than 69.9% on this metric.

Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits). He defines ROC (Joel Greenblatt) % as EBIT divided by the total of Property, Plant and Equipment and net working capital. Etherstack's annualized ROC (Joel Greenblatt) % for the quarter that ended in Dec. 2025 was -223.79%.

The historical rank and industry rank for Etherstack's ROC (Joel Greenblatt) % or its related term are showing as below:

ASX:ESK' s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -4148.8   Med: -261.23   Max: 266.13
Current: -24.26

During the past 13 years, Etherstack's highest ROC (Joel Greenblatt) % was 266.13%. The lowest was -4148.80%. And the median was -261.23%.

ASX:ESK's ROC (Joel Greenblatt) % is ranked worse than
69.9% of 2807 companies
in the Software industry
Industry Median: 19.62 vs ASX:ESK: -24.26

Etherstack's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 0.00% per year.


Etherstack  (ASX:ESK) ROC (Joel Greenblatt) % Explanation

The way Joel Greenblatt defines Return on Capital is a more accurate measure of how efficiently the company generates returns onthe capital actually invested in the business. EBIT is used instead of net income because the tax and interest payment may be affected by factors other than the core business operation. Intangible assets are not included in the calculation because they don't need to be replaced.

Joel Greenblatt uses his definition of Return on Capital and Earnings Yield (Joel Greenblatt) % to rank companies.


Etherstack ROC (Joel Greenblatt) % Related Terms


Etherstack ROC (Joel Greenblatt) % Historical Data

* Premium members only.

The historical data trend for Etherstack's ROC (Joel Greenblatt) % 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.

Etherstack ROC (Joel Greenblatt) % Chart

Etherstack Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
ROC (Joel Greenblatt) %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 213.14 266.13 29.26 -496.71 -25.74

Etherstack Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
ROC (Joel Greenblatt) % 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 500.92 -342.63 -465.45 262.50 -223.79

ASX:ESK vs UBER, SHOP, CRM: ROC (Joel Greenblatt) % Comparison

For the Software - Application subindustry, Etherstack's ROC (Joel Greenblatt) %, along with its competitors' market caps and ROC (Joel Greenblatt) % 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.


Etherstack ROC (Joel Greenblatt) % vs Software Industry

For the Software industry and Technology sector, Etherstack's ROC (Joel Greenblatt) % distribution charts can be found below:

* The bar in red indicates where Etherstack's ROC (Joel Greenblatt) % falls into.


ASX:ESK
44GF Score
Etherstack PLC ASX:ESK
ROC (Joel Greenblatt) % is just one metric. See GF Score™, valuation, warning signs, and more.
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Etherstack ROC (Joel Greenblatt) % Calculation

Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits) . He defines Return on Capital as follows:

ROC (Joel Greenblatt) %=EBIT/Average of (Net fixed Assets + Net Working Capital)

EBIT stands for Earnings Before Interest and Taxes.

Fixed Assets are also known as non-current assets. They include the Property, Plant and Equipment that the firm needs in its operation.

GuruFocus calculates net working capital as: (Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Deferred Revenue + Other Current Liabilities). We're trying to account for OPERATING assets and liabilities (part of daily business) when calculating working capital. Cash and marketable securities are considered NON-OPERATING assets and are not included in calculation. We will also back out all interest bearing debt, short term debt and the portion of long term debt that is due in the current period from the current liabilities. This debt will be considered when computing cost of capital and it would be inappropriate to count it twice.

Working Capital(Q: Jun. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(4.519 + 0.468 + 0) - (2.419 + 0.235 + 3.243)
=-0.91

Working Capital(Q: Dec. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(1.028 + 0.306 + -0.00099999999999856) - (1.847 + 2.483 + 1.321)
=-4.318

When net working capital is negative, 0 is used.

So ROC (Joel Greenblatt) % of Etherstack for the quarter that ended in Dec. 2025 can be restated 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 )
=-5.372/( ( (1.949 + max(-0.91, 0)) + (2.852 + max(-4.318, 0)) )/ 2 )
=-5.372/( ( 1.949 + 2.852 )/ 2 )
=-5.372/2.4005
=-223.79 %

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

* 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.

What does a ROC (Joel Greenblatt) % of -223.79% mean?
Etherstack (ASX:ESK) has a ROC (Joel Greenblatt) % of -223.79% as of Dec. 2025. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Etherstack and its competitors. According to the industry distribution chart, Etherstack ranks #1962 out of 2807 companies in the Software industry, placing it in the top 69.9%.
Is Etherstack's ROC (Joel Greenblatt) % too high?
Etherstack's current ROC (Joel Greenblatt) % is -223.79%. Based on the distribution chart, Etherstack ranks #1962 out of 2807 companies in the Software industry, which is below the industry midpoint. Overall, Etherstack has a GF Score™ of 44/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Etherstack's ROC (Joel Greenblatt) % compare to UBER and SHOP?
According to the Software industry distribution chart, Etherstack ranks #1962 out of 2807 companies for ROC (Joel Greenblatt) %. This places Etherstack in the lower half of its industry. The industry median ROC (Joel Greenblatt) % is 19.62. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROC (Joel Greenblatt) % for a Software company?
The median ROC (Joel Greenblatt) % among Software companies is 19.62, based on 2,807 companies in the industry. Companies in the top quartile (top 25%) have a ROC (Joel Greenblatt) % significantly above this median, while those in the bottom quartile fall well below. However, ROC (Joel Greenblatt) % 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 (Joel Greenblatt) % mean?
A high ROC (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Etherstack and its competitors. For the Software industry, the median ROC (Joel Greenblatt) % is 19.62 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Etherstack's current ROC (Joel Greenblatt) % is -223.79%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Etherstack stock overvalued right now?
Based on GuruFocus' analysis, Etherstack (ASX:ESK) is currently considered Modestly Overvalued. The stock's GF Value™ is A$0.44, compared to a current price of A$0.53 — trading 20.5% above its estimated fair value. The current ROC (Joel Greenblatt) % is -223.79%. Etherstack's overall GF Score™ is 44/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROC (Joel Greenblatt) % calculated?
ROC (Joel Greenblatt) % is calculated from a company's financial statements. For Etherstack (ASX:ESK), the current ROC (Joel Greenblatt) % is -223.79% 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.

Is Etherstack (ASX:ESK) Overvalued in 2026?

Based on GuruFocus' analysis, Etherstack stock appears to be overvalued. The current stock price of A$0.53 is trading 20.5% above its estimated GF Value™ of A$0.44. GuruFocus considers Etherstack to be Modestly Overvalued.

Key valuation signals for ASX:ESK:

  • ROC (Joel Greenblatt) %: -223.79%
  • GF Value™: A$0.44 vs. price of A$0.53 (20.5% above fair value)
  • GF Score™: 44/100 with 4 warning signs

No single metric tells the full story. See the ASX:ESK stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Etherstack Business Description

Address The Blade, Abbey Square, Suite 12, Reading, GBR, RG1 3EB
Etherstack PLC specializes in wireless communications technology. It designs, develops, and deploys wireless communications software and products. The company develops software for use in transceivers, which enables the transceiver to communicate with a radio network and other transceivers. In addition, it also licenses its software and designs to companies that manufacture telecommunication equipment for government, public safety agencies, and utilities. Geographically, the firm operates through the region of the United Kingdom, the United States, Japan, Australia, South Korea, and Canada.
44GF Score

Get the complete analysis for ASX:ESK

ROC (Joel Greenblatt) % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

A$0.53
Price
A$0.44
GF Value