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. A shorter period RSI is more reactive to recent price changes, so it can show early signs of reversals. 9-Day RSI is sometimes used together with 14-Day RSI in a two period divergence strategy.
As of today (2026-07-08), Alpha Pro Tech's 9-Day RSI is 39.65.
The industry rank for Alpha Pro Tech's 9-Day RSI or its related term are showing as below:
STU:APL's 9-Day RSI is ranked better than 71.85% of 1883
companies
in the Construction industry
Industry Median: 46.48
vs STU:APL: 39.65
Alpha Pro Tech (STU:APL) 9-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. A shorter period RSI is more reactive to recent price changes, so it can show early signs of reversals. 9-Day RSI is sometimes used together with 14-Day RSI in a two period divergence strategy.
Alpha Pro Tech 9-Day RSI Related Terms
STU:APL vs INVE, SNTL, CSTE: 9-Day RSI Comparison
For the Building Products & Equipment subindustry, Alpha Pro Tech's 9-Day RSI, along with its competitors' market caps and 9-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.
Alpha Pro Tech 9-Day RSI vs Construction Industry
For the Construction industry and Industrials sector, Alpha Pro Tech's 9-Day RSI distribution charts can be found below:
* The bar in red indicates where Alpha Pro Tech's 9-Day RSI falls into.
* 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.
Alpha Pro Tech (STU:APL) has a 9-Day RSI of 39.65 as of Jul. 08, 2026. According to the industry distribution chart, Alpha Pro Tech ranks #530 out of 1883 companies in the Construction industry, placing it in the top 28.1%.
Is Alpha Pro Tech's 9-Day RSI too high?
Alpha Pro Tech's current 9-Day RSI is 39.65. The Construction industry median 9-Day RSI is 46.48. Alpha Pro Tech's value of 39.65 is 14.7% below this industry median. Based on the distribution chart, Alpha Pro Tech ranks #530 out of 1883 companies in the Construction industry, which is above the industry midpoint. Overall, Alpha Pro Tech has a GF Score™ of 70/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Alpha Pro Tech's 9-Day RSI compare to INVE and SNTL?
According to the Construction industry distribution chart, Alpha Pro Tech ranks #530 out of 1883 companies for 9-Day RSI. This puts Alpha Pro Tech in the upper half of its industry. The industry median 9-Day RSI is 46.48. Alpha Pro Tech's value of 39.65 is 14.7% below this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 9-Day RSI for a Construction company?
The median 9-Day RSI among Construction companies is 46.48, based on 1,883 companies in the industry. Companies in the top quartile (top 25%) have a 9-Day RSI significantly above this median, while those in the bottom quartile fall well below. However, 9-Day RSI should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Alpha Pro Tech's current 9-Day RSI of 39.65 is 14.7% 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 9-Day RSI mean?
A high 9-Day RSI can signal that a stock is expensive relative to its fundamentals. For the Construction industry, the median 9-Day RSI is 46.48 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Alpha Pro Tech's current 9-Day RSI is 39.65. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Alpha Pro Tech stock overvalued right now?
Based on GuruFocus' analysis, Alpha Pro Tech (STU:APL) is currently considered Fairly Valued. The stock's GF Value™ is €4.73, compared to a current price of €4.50 — trading 4.9% below its estimated fair value. The current 9-Day RSI is 39.65 and 14.7% below the Construction industry median of 46.48. Alpha Pro Tech's overall GF Score™ is 70/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 9-Day RSI calculated?
9-Day RSI is calculated from a company's financial statements. For Alpha Pro Tech (STU:APL), the current 9-Day RSI is 39.65 as of Jul. 08, 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 Alpha Pro Tech (STU:APL) Overvalued in 2026?
Based on GuruFocus' analysis, Alpha Pro Tech stock appears to be undervalued.
The current stock price of €4.50 is trading 4.9% below its estimated GF Value™ of €4.73.
GuruFocus considers Alpha Pro Tech to be Fairly Valued.
Key valuation signals for STU:APL:
9-Day RSI: 39.65
GF Value™: €4.73 vs. price of €4.50 (4.9% below fair value)
Industry Position: 14.7% below the Construction median (#530 of 1883)
No single metric tells the full story. See the STU:APL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Alpha Pro Tech Ltd is in the business of protecting people, products, and environments. It is developing, manufacturing, and marketing a line of disposable protective apparel and infection control products for the cleanroom, industrial, pharmaceutical, medical, and dental markets. It also manufactures a line of building supply construction weatherization products that are sold under the Alpha Pro Tech brand name. The Company operates through two business segments: Building Supply and Disposable Protective Apparel. Key revenue is generated from Building Supply, consisting of a line of construction supply weatherization products. The construction supply weatherization products consist of housewrap and synthetic roof underlayment, and synthetic roof underlayment accessories.
70GF Score
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