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Summa Defence OyjOSTO:SUMMAS -0.54%48 Cyclically Adjusted PB Ratio is 0.01 as of Aug. 03, 2026, which is 86% below its 10-year median of 0.07. GuruFocus rates OSTO:SUMMAS with a GF Score™ of 48/100 and a GF Value™ of kr13.50 (Possible Value Trap). The stock has 6 warning signs investors should review. Among 211 Aerospace & Defense companies, Summa Defence Oyj ranks better than 99.53% on this metric.
The historical rank and industry rank for Summa Defence Oyj's Cyclically Adjusted PB Ratio or its related term are showing as below:
OSTO:SUMMAS'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.01 Med: 0.07 Max: 0.16
Current: 0.01
During the past 13 years, Summa Defence Oyj's highest Cyclically Adjusted PB Ratio was 0.16. The lowest was 0.01. And the median was 0.07.
OSTO:SUMMAS's Cyclically Adjusted PB Ratio is ranked better than 99.53% of 211
companies
in the Aerospace & Defense industry
Industry Median: 3.46
vs OSTO:SUMMAS: 0.01
The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.
Summa Defence Oyj's adjusted book value per share data of for the fiscal year that ended in Dec25 was kr39.655. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is kr502.09 for the trailing ten years ended in Dec25.
Shiller PE for Stocks: The True Measure of Stock Valuation
Summa Defence Oyj (OSTO:SUMMAS) Cyclically Adjusted PB Ratio Explanation
Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.
Summa Defence Oyj Cyclically Adjusted PB Ratio Related Terms
Summa Defence Oyj Cyclically Adjusted PB Ratio Historical Data
* Premium members only.
The historical data trend for Summa Defence Oyj's Cyclically Adjusted PB 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.
Summa Defence Oyj Cyclically Adjusted PB Ratio Chart
OSTO:SUMMAS vs SPCX, GE, RTX: Cyclically Adjusted PB Ratio Comparison
For the Aerospace & Defense subindustry, Summa Defence Oyj's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB 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 Cyclically Adjusted PB Ratio vs Aerospace & Defense Industry
For the Aerospace & Defense industry and Industrials sector, Summa Defence Oyj's Cyclically Adjusted PB Ratio distribution charts can be found below:
* The bar in red indicates where Summa Defence Oyj's Cyclically Adjusted PB Ratio falls into.
Summa Defence Oyj Cyclically Adjusted PB Ratio Calculation
Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.
Summa Defence Oyj's Cyclically Adjusted PB Ratio for today is calculated as
* 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.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
What does a Cyclically Adjusted PB Ratio of 0.01 mean?
Summa Defence Oyj (OSTO:SUMMAS) has a Cyclically Adjusted PB Ratio of 0.01 as of Aug. 03, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Summa Defence Oyj and its competitors. This is 86% below median its historical median of 0.07. Over the past decade, Summa Defence Oyj's Cyclically Adjusted PB Ratio has ranged from 0.01 to 0.16. According to the industry distribution chart, Summa Defence Oyj ranks #1 out of 211 companies in the Aerospace & Defense industry, placing it in the top 0.5%.
Is Summa Defence Oyj's Cyclically Adjusted PB Ratio too high?
Summa Defence Oyj's current Cyclically Adjusted PB Ratio of 0.01 is 86% below median its 10-year median of 0.07. Over the past 10 years, this metric has ranged from a low of 0.01 to a high of 0.16. The Aerospace & Defense industry median Cyclically Adjusted PB Ratio is 3.46. Summa Defence Oyj's value of 0.01 is 99.7% below this industry median. Based on the distribution chart, Summa Defence Oyj ranks #1 out of 211 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 48/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Summa Defence Oyj's Cyclically Adjusted PB Ratio compare to SPCX and GE?
According to the Aerospace & Defense industry distribution chart, Summa Defence Oyj ranks #1 out of 211 companies for Cyclically Adjusted PB Ratio. This places Summa Defence Oyj in the top 1% of its industry — outperforming the majority of peers. The industry median Cyclically Adjusted PB Ratio is 3.46. Summa Defence Oyj's value of 0.01 is 99.7% below this benchmark. Historically, Summa Defence Oyj's own Cyclically Adjusted PB Ratio has ranged from 0.01 to 0.16 over the past decade. While the company's 10-year median is 0.07 vs. the industry median of 3.46, 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 Cyclically Adjusted PB Ratio for an Aerospace & Defense company?
The median Cyclically Adjusted PB Ratio among Aerospace & Defense companies is 3.46, based on 211 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Summa Defence Oyj's current Cyclically Adjusted PB Ratio of 0.01 is 99.7% 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 Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Summa Defence Oyj and its competitors. For the Aerospace & Defense industry, the median Cyclically Adjusted PB Ratio is 3.46 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Summa Defence Oyj's current Cyclically Adjusted PB Ratio is 0.01, which is 86% below median its own 10-year median of 0.07. 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 kr13.50, compared to a current price of kr5.51 — trading 59.2% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 0.01, which is 86% below median its 10-year median of 0.07 and 99.7% below the Aerospace & Defense industry median of 3.46. 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 Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Summa Defence Oyj (OSTO:SUMMAS), the current Cyclically Adjusted PB Ratio is 0.01 as of Aug. 03, 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 kr5.51 is trading 59.2% below its estimated GF Value™ of kr13.50.
GuruFocus considers Summa Defence Oyj to be Possible Value Trap.
Key valuation signals for OSTO:SUMMAS:
Cyclically Adjusted PB Ratio: 0.01 (86% below median its 10-year median of 0.07)
GF Value™: kr13.50 vs. price of kr5.51 (59.2% below fair value)
Industry Position: 99.7% below the Aerospace & Defense median (#1 of 211)
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
Get the complete analysis for OSTO:SUMMAS
Cyclically Adjusted PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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