Rockwool ASWBO:ROCK +0.47%63 PB Ratio is 2.17 as of Jun. 26, 2026, which is 8% below its 10-year median of 2.35. GuruFocus rates WBO:ROCK with a GF Score™ of 63/100 and a GF Value™ of €31.58 (Fairly Valued). The stock has 1 warning sign investors should review. Among 1,722 Construction companies, Rockwool AS ranks worse than 68.41% on this metric.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. As of today (2026-06-26), Rockwool AS's share price is €29.62. Rockwool AS's Book Value per Share for the quarter that ended in Mar. 2026 was €13.68. Hence, Rockwool AS's PB Ratio of today is 2.17.
The historical rank and industry rank for Rockwool AS's PB Ratio or its related term are showing as below:
WBO:ROCK'
s PB Ratio Range Over the Past 10 Years
Min: 1.3 Med: 2.35 Max: 4.19
Current: 2.27
During the past 13 years, Rockwool AS's highest PB Ratio was 4.19. The lowest was 1.30. And the median was 2.35.
WBO:ROCK's PB Ratio is ranked worse than 68.41% of 1722
companies
in the Construction industry
Industry Median: 1.31
vs WBO:ROCK: 2.27
During the past 12 months, Rockwool AS's average Book Value Per Share Growth Rate was -9.90% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 3.60% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 7.40% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 8.50% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Rockwool AS was 18.60% per year. The lowest was 3.20% per year. And the median was 8.50% per year.
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
Rockwool AS PB Ratio Related Terms
Rockwool AS PB Ratio Historical Data
* Premium members only.
The historical data trend for Rockwool AS's 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.
For the Building Products & Equipment subindustry, Rockwool AS's PB Ratio, along with its competitors' market caps and 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.
Rockwool AS PB Ratio vs Construction Industry
For the Construction industry and Industrials sector, Rockwool AS's PB Ratio distribution charts can be found below:
* The bar in red indicates where Rockwool AS's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
Rockwool AS's PB Ratio for today is calculated as follows:
* 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:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
Rockwool AS (WBO:ROCK) has a PB Ratio of 2.17 as of Jun. 26, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Rockwool AS and its competitors. This is near median its historical median of 2.35. Over the past decade, Rockwool AS's PB Ratio has ranged from 1.30 to 4.19. According to the industry distribution chart, Rockwool AS ranks #1178 out of 1722 companies in the Construction industry, placing it in the top 68.4%.
Is Rockwool AS's PB Ratio too high?
Rockwool AS's current PB Ratio of 2.17 is near median its 10-year median of 2.35. Over the past 10 years, this metric has ranged from a low of 1.30 to a high of 4.19. The Construction industry median PB Ratio is 1.31. Rockwool AS's value of 2.17 is 65.6% above this industry median. Based on the distribution chart, Rockwool AS ranks #1178 out of 1722 companies in the Construction industry, which is below the industry midpoint. Overall, Rockwool AS has a GF Score™ of 63/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Rockwool AS's PB Ratio compare to TT and JCI?
According to the Construction industry distribution chart, Rockwool AS ranks #1178 out of 1722 companies for PB Ratio. This places Rockwool AS in the lower half of its industry. The industry median PB Ratio is 1.31. Rockwool AS's value of 2.17 is 65.6% above this benchmark. Historically, Rockwool AS's own PB Ratio has ranged from 1.30 to 4.19 over the past decade. While the company's 10-year median is 2.35 vs. the industry median of 1.31, Rockwool AS 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 PB Ratio for a Construction company?
The median PB Ratio among Construction companies is 1.31, based on 1,722 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Rockwool AS's current PB Ratio of 2.17 is 65.6% 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 PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Rockwool AS and its competitors. For the Construction industry, the median PB Ratio is 1.31 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Rockwool AS's current PB Ratio is 2.17, which is near median its own 10-year median of 2.35. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Rockwool AS stock overvalued right now?
Based on GuruFocus' analysis, Rockwool AS (WBO:ROCK) is currently considered Fairly Valued. The stock's GF Value™ is €31.58, compared to a current price of €29.62 — trading 6.2% below its estimated fair value. The current PB Ratio is 2.17, which is near median its 10-year median of 2.35 and 65.6% above the Construction industry median of 1.31. Rockwool AS's overall GF Score™ is 63/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For Rockwool AS (WBO:ROCK), the current PB Ratio is 2.17 as of Jun. 26, 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 Rockwool AS (WBO:ROCK) Overvalued in 2026?
Based on GuruFocus' analysis, Rockwool AS stock appears to be undervalued.
The current stock price of €29.62 is trading 6.2% below its estimated GF Value™ of €31.58.
GuruFocus considers Rockwool AS to be Fairly Valued.
Key valuation signals for WBO:ROCK:
PB Ratio: 2.17 (near median its 10-year median of 2.35)
GF Value™: €31.58 vs. price of €29.62 (6.2% below fair value)
Industry Position: 65.6% above the Construction median (#1178 of 1722)
No single metric tells the full story. See the WBO:ROCK stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Rockwool AS manufactures and sells building materials, including insulation and roofing systems. The company organizes itself into two segments based on the product: Insulation and Systems. The Insulation segment, sells building, industrial, and technical insulation and external thermal insulation wall systems to the construction industry. The Systems business sells acoustic ceilings and wall systems, external cladding systems, horticultural substrate solutions, engineered fiber solutions, and noise and vibration control to the construction and automotive industries. The majority of revenue is from the Insulation Segment. The majority of sales come from Europe.
63GF Score
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