Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
The Relative Strength Index (RSI) is a momentum oscillator that measures the speed and change of price movements. The RSI is most typically used on a 14-day period, measured on a scale from 0 to 100. Traditionally, an asset is considered overbought or overvalued when the RSI is above 70 and oversold or undervalued when it is below 30.
Armstrong World Industries (FRA:91A) 14-Day RSI Explanation
The Relative Strength Index (RSI), developed by J. Welles Wilder in his book “New Concepts in Technical Trading Systems.”, is a momentum oscillator that measures the speed and change of price movements. The RSI is most typically used on a 14-day period, measured on a scale from 0 to 100.
Traditionally, an asset is considered overbought or overvalued when the RSI is above 70 and oversold or undervalued when it is below 30. A RSI surpasses the 30 level indicates a bullish sign, when it slides below 70 level, it’s a bearish sign. This level can be adjusted depending on the security’s pattern and the market’s underlying trend. In an uptrend or bullish market, the RSI might range within a higher interval, investors could set the support level higher. If a downtrend or bearish market occurs, investors may need to lower the resistance level.
RSI can also be used in trading techniques to indicate the trading signal, such as Divergences and Swing Rejections.
Armstrong World Industries 14-Day RSI Related Terms
FRA:91A vs FBIN, BLDR, AAON: 14-Day RSI Comparison
For the Building Products & Equipment subindustry, Armstrong World Industries's 14-Day RSI, along with its competitors' market caps and 14-Day RSI 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.
Armstrong World Industries 14-Day RSI vs Construction Industry
For the Construction industry and Industrials sector, Armstrong World Industries's 14-Day RSI distribution charts can be found below:
* The bar in red indicates where Armstrong World Industries's 14-Day RSI falls into.
Armstrong World Industries (FRA:91A) 14-Day RSI Calculation
The formula for calculating RSI is:
RSI
=
100
–
[ 100
/
( 1 + Average Gain
/
Average Loss )]
* Note that the formula uses a positive value for the average loss.
* 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.
Armstrong World Industries (FRA:91A) has a 14-Day RSI of 68.78 as of Aug. 10, 2026. Relative Strength Index (RSI) is a momentum oscillator that measures the speed and change of price movements. View historical data on Armstrong World Industries and its competitors. According to the industry distribution chart, Armstrong World Industries ranks #1818 out of 1892 companies in the Construction industry, placing it in the top 96.1%.
Is Armstrong World Industries' 14-Day RSI too high?
Armstrong World Industries' current 14-Day RSI is 68.78. The Construction industry median 14-Day RSI is 49.83. Armstrong World Industries' value of 68.78 is 38% above this industry median. Based on the distribution chart, Armstrong World Industries ranks #1818 out of 1892 companies in the Construction industry, which is in the bottom quartile relative to peers. Overall, Armstrong World Industries has a GF Score™ of 71/100, reflecting its overall financial health beyond just this single metric.
How does Armstrong World Industries' 14-Day RSI compare to FBIN and BLDR?
According to the Construction industry distribution chart, Armstrong World Industries ranks #1818 out of 1892 companies for 14-Day RSI. This places Armstrong World Industries in the lower half of its industry. The industry median 14-Day RSI is 49.83. Armstrong World Industries' value of 68.78 is 38% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 14-Day RSI for a Construction company?
The median 14-Day RSI among Construction companies is 49.83, based on 1,892 companies in the industry. Companies in the top quartile (top 25%) have a 14-Day RSI significantly above this median, while those in the bottom quartile fall well below. However, 14-Day RSI should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Armstrong World Industries's current 14-Day RSI of 68.78 is 38% 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 14-Day RSI mean?
A high 14-Day RSI can signal that a stock is expensive relative to its fundamentals. Relative Strength Index (RSI) is a momentum oscillator that measures the speed and change of price movements. View historical data on Armstrong World Industries and its competitors. For the Construction industry, the median 14-Day RSI is 49.83 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Armstrong World Industries's current 14-Day RSI is 68.78. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Armstrong World Industries stock overvalued right now?
Armstrong World Industries (FRA:91A) has a current 14-Day RSI of 68.78. The stock's GF Value™ is €148.83, compared to a current price of €159.00 — trading 6.8% above its estimated fair value. The current 14-Day RSI is 68.78 and 38% above the Construction industry median of 49.83. Armstrong World Industries' overall GF Score™ is 71/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 14-Day RSI calculated?
14-Day RSI is calculated from a company's financial statements. For Armstrong World Industries (FRA:91A), the current 14-Day RSI is 68.78 as of Aug. 10, 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 Armstrong World Industries (FRA:91A) Overvalued in 2026?
Based on GuruFocus' analysis, Armstrong World Industries stock appears to be overvalued.
The current stock price of €159.00 is trading 6.8% above its estimated GF Value™ of €148.83.
Key valuation signals for FRA:91A:
14-Day RSI: 68.78
GF Value™: €148.83 vs. price of €159.00 (6.8% above fair value)
Industry Position: 38% above the Construction median (#1818 of 1892)
No single metric tells the full story. See the FRA:91A stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Armstrong World Industries Inc designs and manufactures exterior architectural applications, including ceilings, specialty walls, and exterior metal solutions, using materials such as mineral fiber, fiberglass, metal, felt, architectural resin and glass, wood, wood fiber, and glass-reinforced-gypsum. Its segments include Mineral Fiber, which produces suspended mineral fiber and fiberglass ceiling systems and includes results from the Worthington Armstrong Venture (WAVE) for ceiling suspension system (grid) products; Architectural Specialties, which designs, produces, and sources specialty ceilings, walls, and other architectural applications for commercial settings, with revenues mainly project driven; and Unallocated Corporate. The company operates in the United States and Canada.
71GF Score
Get the complete analysis for FRA:91A
14-Day RSI is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
FRA:91A has been successfully added to your 
