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Peter Lynch Fair Value applies to growing companies. The ideal range for the growth rate is between 10 - 20% a year. Peter Lynch thinks that the fair P/E value for a growth company equals its growth rate, that is PEG = 1. The earnings here is trailing twelve month (TTM) earnings. For non-bank companies, the growth rate we use is the average growth rate for EBITDA per share over the past 5 years. For Banks, the growth rate we use is the average growth rate for Book Value per share over the past 5 years. If 5-Year Growth Rate is greater than 25% a year, we use 25. If 5-Year Growth Rate is smaller than 5% a year, we do not calculate Peter Lynch Fair Value.
Here, as of today, Rockwool AS's PEG is 1. Rockwool AS's 5-Year TTM EBITDA Growth Rate is 5.68.
Rockwool AS's EPS without NRI for the trailing twelve months (TTM) ended in Mar. 2026 was $-0.02. Therefore, the Peter Lynch Fair Value for today is $-0.09.
As of today (2026-07-16), Rockwool AS's share price is $34.70. Rockwool AS's Peter Lynch fair value is $-0.09. Therefore, Rockwool AS's Price to Peter Lynch Fair Value Ratio for today is N/A.
The historical rank and industry rank for Rockwool AS's Peter Lynch Fair Value or its related term are showing as below:
During the past 13 years, the highest Price to Peter Lynch Fair Value Ratio of Rockwool AS was 28.05. The lowest was 0.56. And the median was 1.66.
RKWAF's Price-to-Peter-Lynch-Fair-Value is not ranked *
in the Construction industry.
Industry Median: 0.91 * Ranked among companies with meaningful Price-to-Peter-Lynch-Fair-Value only.
Note: Please don't confuse Peter Lynch Fair Value with the value reached in Peter Lynch Chart.
Rockwool AS (OTCPK:RKWAF) Peter Lynch Fair Value Explanation
Peter Lynch Fair Value applies to growing companies. The ideal range for the growth rate is between 10 - 20% a year.
Peter Lynch thinks that the fair P/E value for a growth company equals its growth rate, that is PEG = 1. The earnings here is trailing twelve month (TTM) earnings. For non-bank companies, the growth rate we use is the average growth rate for EBITDA per share over the past 5 years. For Banks, the growth rate we use is the average growth rate for Book Value per share over the past 5 years.
Please don't confuse Peter Lynch Fair Value with the value reached in Peter Lynch Chart. In Peter Lynch chart, a fixed P/E ratio of 15 is used to draw the Earnings Line. Therefore the value reached has a P/E ratio of 15. But in Peter Lynch Fair Value calculation, P/E equals to the growth rate of EBITDA per share over the past 5 years, which is 5.68 instead of 15 in this case.
Rockwool AS's Price to Peter Lynch Fair Value Ratio for today is calculated as
Price to Peter Lynch Fair Value
=
Share Price
/
Peter Lynch Fair Value
=
34.70
/
-0.09
=
N/A
* 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.
Rockwool AS Peter Lynch Fair Value Related Terms
Rockwool AS Peter Lynch Fair Value Historical Data
* Premium members only.
The historical data trend for Rockwool AS's Peter Lynch Fair Value 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.
RKWAF vs TT, JCI, CARR: Peter Lynch Fair Value Comparison
For the Building Products & Equipment subindustry, Rockwool AS's Price-to-Peter-Lynch-Fair-Value, along with its competitors' market caps and Price-to-Peter-Lynch-Fair-Value 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 Price-to-Peter-Lynch-Fair-Value vs Construction Industry
For the Construction industry and Industrials sector, Rockwool AS's Price-to-Peter-Lynch-Fair-Value distribution charts can be found below:
* The bar in red indicates where Rockwool AS's Price-to-Peter-Lynch-Fair-Value falls into.
Rockwool AS's EPS without NRI for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was $-0.02.
* 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 be aware that the 5-Year TTM EBITDA Growth Rate is calculated based on TTM data over the last 5 years. For quarterly reported companies, the TTM data adds up the quarterly data reported by the company within the most recent 12 months. For companies that report semi-annually, annually, or do not have enough quarterly data, GuruFocus uses the annual data as the TTM data.
If 5-Year Earnings Growth Rate is greater than 25% a year, we use 25.
If 5-Year Earnings Growth Rate is smaller than 5% a year, we do not calculate Peter Lynch Fair Value.
Please note that we use the 5-year average growth rate of EBITDA per share as the growth rate for non-bank companies, as EBITDA growth is subject to less manipulations than net earnings per share. For banks, we use the 5-year average growth rate of Book Value per share as the growth rate. The reason is that EBITDA is not applicable to Banks and Book value is a relative important measurement for Banks. In the calculation, PEG=1 because Peter Lynch thinks that the fair P/E ratio of the growth stock is equal to its earnings growth rate.
What does a Peter Lynch Fair Value of $-0.09 mean?
Rockwool AS (RKWAF) has a Peter Lynch Fair Value of $-0.09 as of Jul. 16, 2026. Peter Lynch Fair Value is the stock value based on a company's current earnings and five-year earnings growth, assuming a PEG of one. View historical data on Rockwool AS and its competitors. Over the past decade, Rockwool AS's Peter Lynch Fair Value has ranged from 0.56 to 28.05. According to the industry distribution chart, Rockwool AS ranks #999999 out of 541 companies in the Construction industry.
Is Rockwool AS's Peter Lynch Fair Value too high?
Rockwool AS's current Peter Lynch Fair Value is $-0.09. Over the past 10 years, this metric has ranged from a low of 0.56 to a high of 28.05. Based on the distribution chart, Rockwool AS ranks #999999 out of 541 companies in the Construction industry, which is in the bottom quartile relative to peers. Overall, Rockwool AS has a GF Score™ of 92/100, reflecting its overall financial health beyond just this single metric.
How does Rockwool AS's Peter Lynch Fair Value compare to TT and JCI?
According to the Construction industry distribution chart, Rockwool AS ranks #999999 out of 541 companies for Peter Lynch Fair Value. This places Rockwool AS in the lower half of its industry. The industry median Peter Lynch Fair Value is 0.91. Historically, Rockwool AS's own Peter Lynch Fair Value has ranged from 0.56 to 28.05 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Peter Lynch Fair Value for a Construction company?
The median Peter Lynch Fair Value among Construction companies is 0.91, based on 541 companies in the industry. Companies in the top quartile (top 25%) have a Peter Lynch Fair Value significantly above this median, while those in the bottom quartile fall well below. However, Peter Lynch Fair Value 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 Peter Lynch Fair Value mean?
A high Peter Lynch Fair Value can signal that a stock is expensive relative to its fundamentals. Peter Lynch Fair Value is the stock value based on a company's current earnings and five-year earnings growth, assuming a PEG of one. View historical data on Rockwool AS and its competitors. For the Construction industry, the median Peter Lynch Fair Value is 0.91 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Rockwool AS's current Peter Lynch Fair Value is $-0.09. 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?
Rockwool AS (RKWAF) has a current Peter Lynch Fair Value of $-0.09. The stock's GF Value™ is $39.33, compared to a current price of $34.70 — trading 11.8% below its estimated fair value. The current Peter Lynch Fair Value is $-0.09. Rockwool AS's overall GF Score™ is 92/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Peter Lynch Fair Value calculated?
Peter Lynch Fair Value is calculated from a company's financial statements. For Rockwool AS (RKWAF), the current Peter Lynch Fair Value is $-0.09 as of Jul. 16, 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 (RKWAF) Overvalued in 2026?
Based on GuruFocus' analysis, Rockwool AS stock appears to be undervalued.
The current stock price of $34.70 is trading 11.8% below its estimated GF Value™ of $39.33.
Key valuation signals for RKWAF:
Peter Lynch Fair Value: $-0.09
GF Value™: $39.33 vs. price of $34.70 (11.8% below fair value)
No single metric tells the full story. See the RKWAF 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.
92GF Score
Get the complete analysis for RKWAF
Peter Lynch Fair Value is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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