ROC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROIC %. Summa Defence Oyj's annualized return on capital (ROC %) for the quarter that ended in Dec. 2025 was -13.48%.
As of today (2026-06-27), Summa Defence Oyj's WACC % is 2.42%. Summa Defence Oyj's ROC % is -10.75% (calculated using TTM income statement data).
Summa Defence Oyj earns returns that do not match up to its cost of capital. It will destroy value as it grows.
Summa Defence Oyj (OSTO:SUMMAS) 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, Summa Defence Oyj's WACC % is 2.42%. Summa Defence Oyj's ROC % is -10.75% (calculated using TTM income statement data).
Summa Defence Oyj 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.
Summa Defence Oyj ROC % Related Terms
Summa Defence Oyj ROC % Historical Data
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The historical data trend for Summa Defence Oyj'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.
Note:
The Operating Income data used here is two times the semi-annual (Dec. 2025) 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.
Summa Defence Oyj (OSTO:SUMMAS) has a ROC % of -13.48% as of Dec. 2025. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on Summa Defence Oyj and its competitors.
Is Summa Defence Oyj's ROC % too high?
Summa Defence Oyj's current ROC % is -13.48%. Overall, Summa Defence Oyj has a GF Score™ of 48/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Summa Defence Oyj's ROC % compare to GE and RTX?
Summa Defence Oyj's ROC % of -13.48% can be compared against companies in the Aerospace & Defense industry. The industry median ROC % is 4.45. 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 Aerospace & Defense company?
The median ROC % among Aerospace & Defense companies is 4.45, based on 351 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 Summa Defence Oyj and its competitors. For the Aerospace & Defense industry, the median ROC % is 4.45 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Summa Defence Oyj's current ROC % is -13.48%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Summa Defence Oyj stock overvalued right now?
Based on GuruFocus' analysis, Summa Defence Oyj (OSTO:SUMMAS) is currently considered Possible Value Trap. The stock's GF Value™ is kr15.66, compared to a current price of kr6.45 — trading 58.8% below its estimated fair value. The current ROC % is -13.48%. Summa Defence Oyj's overall GF Score™ is 48/100 with 6 warning signs to review. 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 Summa Defence Oyj (OSTO:SUMMAS), the current ROC % is -13.48% 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 Summa Defence Oyj (OSTO:SUMMAS) Overvalued in 2026?
Based on GuruFocus' analysis, Summa Defence Oyj stock appears to be undervalued.
The current stock price of kr6.45 is trading 58.8% below its estimated GF Value™ of kr15.66.
GuruFocus considers Summa Defence Oyj to be Possible Value Trap.
Key valuation signals for OSTO:SUMMAS:
ROC %: -13.48%
GF Value™: kr15.66 vs. price of kr6.45 (58.8% below fair value)
No single metric tells the full story. See the OSTO:SUMMAS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Summa Defence Oyj is a Finnish defense and security technology group supporting industry growth and strengthening industrial production capacity amid geopolitical change. Summa Defence focuses on dual-use technologies related to security of supply, situational awareness, mobility, and defense, which benefit the civilian, security, and defense sectors while strengthening comprehensive security, security of supply, and crisis management capabilities. Its products includes Multipurpose vessels, Multipurpose machinery, Watermaster, containers and modular spaces, Drones, XR near-eye display solutions, Griselda - Intelligence data fusion platform, and Renewable energy.
48GF Score
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ROC % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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