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Firefly ABOSTO:FIRE -2.84%86 Cyclically Adjusted PB Ratio is 9.84 as of Sep. 04, 2026, which is 3% below its 10-year median of 10.13. GuruFocus rates OSTO:FIRE with a GF Score™ of 86/100 and a GF Value™ of kr198.60 (Modestly Undervalued). The stock has 1 warning sign investors should review. Among 1,237 Construction companies, Firefly AB ranks worse than 95.96% on this metric.
The historical rank and industry rank for Firefly AB's Cyclically Adjusted PB Ratio or its related term are showing as below:
OSTO:FIRE'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 5.98 Med: 10.13 Max: 18.41
Current: 10.13
During the past years, Firefly AB's highest Cyclically Adjusted PB Ratio was 18.41. The lowest was 5.98. And the median was 10.13.
OSTO:FIRE's Cyclically Adjusted PB Ratio is ranked worse than 95.96% of 1237
companies
in the Construction industry
Industry Median: 1.16
vs OSTO:FIRE: 10.13
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.
Firefly AB's adjusted book value per share data for the three months ended in Jun. 2026 was kr24.453. 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 kr17.38 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Firefly AB (OSTO:FIRE) 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.
Firefly AB Cyclically Adjusted PB Ratio Related Terms
Firefly AB Cyclically Adjusted PB Ratio Historical Data
* Premium members only.
The historical data trend for Firefly AB'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.
OSTO:FIRE vs TT, JCI, CARR: Cyclically Adjusted PB Ratio Comparison
For the Building Products & Equipment subindustry, Firefly AB'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.
Firefly AB Cyclically Adjusted PB Ratio vs Construction Industry
For the Construction industry and Industrials sector, Firefly AB's Cyclically Adjusted PB Ratio distribution charts can be found below:
* The bar in red indicates where Firefly AB's Cyclically Adjusted PB Ratio falls into.
Firefly AB 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.
Firefly AB'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 9.84 mean?
Firefly AB (OSTO:FIRE) has a Cyclically Adjusted PB Ratio of 9.84 as of Sep. 04, 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 Firefly AB and its competitors. This is near median its historical median of 10.13. Over the past decade, Firefly AB's Cyclically Adjusted PB Ratio has ranged from 5.98 to 18.41. According to the industry distribution chart, Firefly AB ranks #1187 out of 1237 companies in the Construction industry, placing it in the top 96%.
Is Firefly AB's Cyclically Adjusted PB Ratio too high?
Firefly AB's current Cyclically Adjusted PB Ratio of 9.84 is near median its 10-year median of 10.13. Over the past 10 years, this metric has ranged from a low of 5.98 to a high of 18.41. The Construction industry median Cyclically Adjusted PB Ratio is 1.16. Firefly AB's value of 9.84 is 748.3% above this industry median. Based on the distribution chart, Firefly AB ranks #1187 out of 1237 companies in the Construction industry, which is in the bottom quartile relative to peers. Overall, Firefly AB has a GF Score™ of 86/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Firefly AB's Cyclically Adjusted PB Ratio compare to TT and JCI?
According to the Construction industry distribution chart, Firefly AB ranks #1187 out of 1237 companies for Cyclically Adjusted PB Ratio. This places Firefly AB in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.16. Firefly AB's value of 9.84 is 748.3% above this benchmark. Historically, Firefly AB's own Cyclically Adjusted PB Ratio has ranged from 5.98 to 18.41 over the past decade. While the company's 10-year median is 10.13 vs. the industry median of 1.16, Firefly AB has consistently been above 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 a Construction company?
The median Cyclically Adjusted PB Ratio among Construction companies is 1.16, based on 1,237 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. Firefly AB's current Cyclically Adjusted PB Ratio of 9.84 is 748.3% above 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 Firefly AB and its competitors. For the Construction industry, the median Cyclically Adjusted PB Ratio is 1.16 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Firefly AB's current Cyclically Adjusted PB Ratio is 9.84, which is near median its own 10-year median of 10.13. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Firefly AB stock overvalued right now?
Based on GuruFocus' analysis, Firefly AB (OSTO:FIRE) is currently considered Modestly Undervalued. The stock's GF Value™ is kr198.60, compared to a current price of kr171.00 — trading 13.9% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 9.84, which is near median its 10-year median of 10.13 and 748.3% above the Construction industry median of 1.16. Firefly AB's overall GF Score™ is 86/100 with 1 warning sign 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 Firefly AB (OSTO:FIRE), the current Cyclically Adjusted PB Ratio is 9.84 as of Sep. 04, 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 Firefly AB (OSTO:FIRE) Overvalued in 2026?
Based on GuruFocus' analysis, Firefly AB stock appears to be undervalued.
The current stock price of kr171.00 is trading 13.9% below its estimated GF Value™ of kr198.60.
GuruFocus considers Firefly AB to be Modestly Undervalued.
Key valuation signals for OSTO:FIRE:
Cyclically Adjusted PB Ratio: 9.84 (near median its 10-year median of 10.13)
GF Value™: kr198.60 vs. price of kr171.00 (13.9% below fair value)
Industry Position: 748.3% above the Construction median (#1187 of 1237)
No single metric tells the full story. See the OSTO:FIRE stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Firefly AB is a supplier of spark detection, fire and dust explosion protection systems in Sweden. The company develops, manufactures and sells high-tech systems, which detect and minimise the risk of fires and dust explosions. It has two business areas: Industrial applications and Infra systems. Industrial applications include customized fire prevention systems, which monitor industrial processes in areas such as tissue, food, woodworking, bioenergy, and recycling. The business area of Infra systems includes early fire detection in subway-, train-, road or cable tunnel systems by means of multiple-gas detection.
86GF Score
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