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The 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk over the past year. As of today (2026-08-27), Summa Defence Oyj's 1-Year Sharpe Ratio is -2.79.
Summa Defence Oyj (OSTO:SUMMAS) 1-Year Sharpe Ratio Explanation
The 1-Year Sharpe Ratio inidicates the risk-adjusted return of an investment over the past year. It is calculated as the annualized result of the average monthly excess return divided by its standard deviation over the past year. The monthly excess return is the monthly investment return minus the monthly risk-free rate (typically the 10-year Treasury Constant Maturity Rate). If the risk-free rate for a specific region is not available, U.S. data is used by default.
The greater a portfolio's Sharpe Ratio, the better its risk-adjusted performance. A negative Sharpe Ratio means the risk-free rate is greater than the portfolio’s historical or projected return, or else the portfolio's return is expected to be negative.
Summa Defence Oyj 1-Year Sharpe Ratio Related Terms
OSTO:SUMMAS vs SPCX, GE, RTX: 1-Year Sharpe Ratio Comparison
For the Aerospace & Defense subindustry, Summa Defence Oyj's 1-Year Sharpe Ratio, along with its competitors' market caps and 1-Year Sharpe Ratio 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.
Summa Defence Oyj 1-Year Sharpe Ratio vs Aerospace & Defense Industry
For the Aerospace & Defense industry and Industrials sector, Summa Defence Oyj's 1-Year Sharpe Ratio distribution charts can be found below:
* The bar in red indicates where Summa Defence Oyj's 1-Year Sharpe Ratio falls into.
The 1-Year Sharpe Ratio measures the performance of an investment such as a stock or portfolio compared to a risk-free asset. A stock / portfolio's 1-Year Sharpe Ratio can be calculated by dividing the difference between the one-year returns of the investment and the risk-free rate, by the standard deviation of the investment returns over one year.
Summa Defence Oyj (OSTO:SUMMAS) has a 1-Year Sharpe Ratio of -2.79 as of Aug. 27, 2026. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for Summa Defence Oyj and its competitors.
Is Summa Defence Oyj's 1-Year Sharpe Ratio too high?
Summa Defence Oyj's current 1-Year Sharpe Ratio is -2.79. 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 1-Year Sharpe Ratio compare to SPCX and GE?
Summa Defence Oyj's 1-Year Sharpe Ratio of -2.79 can be compared against companies in the Aerospace & Defense industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 1-Year Sharpe Ratio for an Aerospace & Defense company?
A good 1-Year Sharpe Ratio depends on the Aerospace & Defense industry context. However, 1-Year Sharpe Ratio 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 1-Year Sharpe Ratio mean?
A high 1-Year Sharpe Ratio can signal that a stock is expensive relative to its fundamentals. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for Summa Defence Oyj and its competitors. Summa Defence Oyj's current 1-Year Sharpe Ratio is -2.79. 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 kr13.43, compared to a current price of kr4.74 — trading 64.7% below its estimated fair value. The current 1-Year Sharpe Ratio is -2.79. 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 1-Year Sharpe Ratio calculated?
1-Year Sharpe Ratio is calculated from a company's financial statements. For Summa Defence Oyj (OSTO:SUMMAS), the current 1-Year Sharpe Ratio is -2.79 as of Aug. 27, 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.
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 kr4.74 is trading 64.7% below its estimated GF Value™ of kr13.43.
GuruFocus considers Summa Defence Oyj to be Possible Value Trap.
Key valuation signals for OSTO:SUMMAS:
1-Year Sharpe Ratio: -2.79
GF Value™: kr13.43 vs. price of kr4.74 (64.7% 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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1-Year Sharpe Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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