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Summa Defence OyjOSTO:SUMMAS +0.15%53 PS Ratio is 0.13 as of Jul. 14, 2026, which is 88% below its 10-year median of 1.07. GuruFocus rates OSTO:SUMMAS with a GF Score™ of 53/100 and a GF Value™ of kr13.57 (Possible Value Trap). The stock has 6 warning signs investors should review. Among 347 Aerospace & Defense companies, Summa Defence Oyj ranks better than 99.14% on this metric.
The PS Ratio, or Price-to-Sales ratio, or Price/Sales, is a financial ratio used to compare a company's market price to its Revenue per Share. As of today, Summa Defence Oyj's share price is kr6.54.
Summa Defence Oyj's Revenue per Share for the trailing twelve months (TTM) ended in Dec. 2025 was kr50.27. Hence, Summa Defence Oyj's PS Ratio for today is 0.13.
The historical rank and industry rank for Summa Defence Oyj's PS Ratio or its related term are showing as below:
OSTO:SUMMAS'
s PS Ratio Range Over the Past 10 Years
Min: 0.13 Med: 1.07 Max: 13.53
Current: 0.13
During the past 13 years, Summa Defence Oyj's highest PS Ratio was 13.53. The lowest was 0.13. And the median was 1.07.
OSTO:SUMMAS's PS Ratio is ranked better than 99.14% of 347
companies
in the Aerospace & Defense industry
Industry Median: 3.52
vs OSTO:SUMMAS: 0.13
Summa Defence Oyj revenue per share has been in decline for the last 5 years.
During the past 12 months, the average Revenue per Share Growth Rate of Summa Defence Oyj was -75.80% per year.
During the past 3 years, the average Revenue per Share Growth Rate was 26.00% per year.
During the past 5 years, the average Revenue per Share Growth Rate was -7.50% per year.
During the past 10 years, the average Revenue per Share Growth Rate was -38.20% per year.
During the past 13 years, Summa Defence Oyj's highest 3-Year average Revenue per Share Growth Rate was 82.10% per year. The lowest was -77.10% per year. And the median was -21.85% per year.
Back to Basics: PS Ratio
Summa Defence Oyj (OSTO:SUMMAS) PS Ratio Explanation
The PS Ratio is an excellent valuation indicator if you want to compare a stock with its historical valuation or with the stocks in the same industry. The PS Ratio works especially well when you want to compare the stock's current valuation with its historical valuation. The PS Ratio is a great valuation tool for evaluating cyclical businesses where the PE Ratio works poorly. It works the best when comparing the current valuation with the historical valuation because over time, a company's profit margin tends to revert to the mean.
When the PS Ratio is applied to the whole stock market, it can be used to evaluate the current market valuation and projected returns. In this case, the price is the total market cap of all stocks that are traded, and sales are the GDP of the country. This is how Warren Buffett estimates the broad market valuation and project future returns.
The PS Ratio does not tell you how cheap or expensive the stock is. It cannot be used to compare companies in different industries. It works better for companies within the same industry because these companies tend to have similar capital structures and profit margins. It works the best when comparing a company with itself in the past.
Summa Defence Oyj PS Ratio Related Terms
Summa Defence Oyj PS Ratio Historical Data
* Premium members only.
The historical data trend for Summa Defence Oyj's PS Ratio 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.
For the Aerospace & Defense subindustry, Summa Defence Oyj's PS Ratio, along with its competitors' market caps and PS 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 PS Ratio vs Aerospace & Defense Industry
For the Aerospace & Defense industry and Industrials sector, Summa Defence Oyj's PS Ratio distribution charts can be found below:
* The bar in red indicates where Summa Defence Oyj's PS Ratio falls into.
The PS Ratio, or Price-to-Sales ratio, or Price/Sales, is a financial ratio used to compare a company's market price to its Revenue per Share. It is a ratio widely used to value stocks and it was first used by Ken Fisher.
Summa Defence Oyj's Share Price of today is kr6.54.
For company reported semi-annually, GuruFocus uses latest annual data as the TTM data. Summa Defence Oyj's Revenue per Share for the trailing twelve months (TTM) ended in Dec. 2025 was kr50.27.
* 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.
It can also be calculated from the numbers for the whole company:
Summa Defence Oyj (OSTO:SUMMAS) has a PS Ratio of 0.13 as of Jul. 14, 2026. Price-to-Sales ratio is the ratio of share price to a company's revenue per share. View historical data on Summa Defence Oyj and its competitors. This is 88% below median its historical median of 1.07. Over the past decade, Summa Defence Oyj's PS Ratio has ranged from 0.13 to 13.53. According to the industry distribution chart, Summa Defence Oyj ranks #3 out of 347 companies in the Aerospace & Defense industry, placing it in the top 0.90000000000001%.
Is Summa Defence Oyj's PS Ratio too high?
Summa Defence Oyj's current PS Ratio of 0.13 is 88% below median its 10-year median of 1.07. Over the past 10 years, this metric has ranged from a low of 0.13 to a high of 13.53. The Aerospace & Defense industry median PS Ratio is 3.52. Summa Defence Oyj's value of 0.13 is 96.3% below this industry median. Based on the distribution chart, Summa Defence Oyj ranks #3 out of 347 companies in the Aerospace & Defense industry, which is in the top quartile — a strong position relative to peers. Overall, Summa Defence Oyj has a GF Score™ of 53/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Summa Defence Oyj's PS Ratio compare to SPCX and GE?
According to the Aerospace & Defense industry distribution chart, Summa Defence Oyj ranks #3 out of 347 companies for PS Ratio. This places Summa Defence Oyj in the top 1% of its industry — outperforming the majority of peers. The industry median PS Ratio is 3.52. Summa Defence Oyj's value of 0.13 is 96.3% below this benchmark. Historically, Summa Defence Oyj's own PS Ratio has ranged from 0.13 to 13.53 over the past decade. While the company's 10-year median is 1.07 vs. the industry median of 3.52, Summa Defence Oyj has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PS Ratio for an Aerospace & Defense company?
The median PS Ratio among Aerospace & Defense companies is 3.52, based on 347 companies in the industry. Companies in the top quartile (top 25%) have a PS Ratio significantly above this median, while those in the bottom quartile fall well below. However, PS Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Summa Defence Oyj's current PS Ratio of 0.13 is 96.3% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high PS Ratio mean?
A high PS Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Sales ratio is the ratio of share price to a company's revenue per share. View historical data on Summa Defence Oyj and its competitors. For the Aerospace & Defense industry, the median PS Ratio is 3.52 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Summa Defence Oyj's current PS Ratio is 0.13, which is 88% below median its own 10-year median of 1.07. 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 kr13.57, compared to a current price of kr6.54 — trading 51.8% below its estimated fair value. The current PS Ratio is 0.13, which is 88% below median its 10-year median of 1.07 and 96.3% below the Aerospace & Defense industry median of 3.52. Summa Defence Oyj's overall GF Score™ is 53/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PS Ratio calculated?
PS Ratio is calculated from a company's financial statements. For Summa Defence Oyj (OSTO:SUMMAS), the current PS Ratio is 0.13 as of Jul. 14, 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 kr6.54 is trading 51.8% below its estimated GF Value™ of kr13.57.
GuruFocus considers Summa Defence Oyj to be Possible Value Trap.
Key valuation signals for OSTO:SUMMAS:
PS Ratio: 0.13 (88% below median its 10-year median of 1.07)
GF Value™: kr13.57 vs. price of kr6.54 (51.8% below fair value)
Industry Position: 96.3% below the Aerospace & Defense median (#3 of 347)
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.
53GF Score
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