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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.
TPE:5519's 9-Day RSI is ranked better than 97.46% of 1887
companies
in the Construction industry
Industry Median: 43.92
vs TPE:5519: 17.46
Longda Construction & Development (TPE:5519) 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.
Longda Construction & Development 9-Day RSI Related Terms
TPE:5519 vs PWR, FIX, EME: 9-Day RSI Comparison
For the Engineering & Construction subindustry, Longda Construction & Development'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.
Longda Construction & Development 9-Day RSI vs Construction Industry
For the Construction industry and Industrials sector, Longda Construction & Development's 9-Day RSI distribution charts can be found below:
* The bar in red indicates where Longda Construction & Development's 9-Day RSI falls into.
Longda Construction & Development (TPE:5519) 9-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.
Longda Construction & Development (TPE:5519) has a 9-Day RSI of 17.46 as of Jul. 19, 2026. According to the industry distribution chart, Longda Construction & Development ranks #48 out of 1887 companies in the Construction industry, placing it in the top 2.5%.
Is Longda Construction & Development's 9-Day RSI too high?
Longda Construction & Development's current 9-Day RSI is 17.46. The Construction industry median 9-Day RSI is 43.92. Longda Construction & Development's value of 17.46 is 60.2% below this industry median. Based on the distribution chart, Longda Construction & Development ranks #48 out of 1887 companies in the Construction industry, which is in the top quartile — a strong position relative to peers. Overall, Longda Construction & Development has a GF Score™ of 92/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Longda Construction & Development's 9-Day RSI compare to PWR and FIX?
According to the Construction industry distribution chart, Longda Construction & Development ranks #48 out of 1887 companies for 9-Day RSI. This places Longda Construction & Development in the top 3% of its industry — outperforming the majority of peers. The industry median 9-Day RSI is 43.92. Longda Construction & Development's value of 17.46 is 60.2% 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 43.92, based on 1,887 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. Longda Construction & Development's current 9-Day RSI of 17.46 is 60.2% 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 43.92 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Longda Construction & Development's current 9-Day RSI is 17.46. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Longda Construction & Development stock overvalued right now?
Based on GuruFocus' analysis, Longda Construction & Development (TPE:5519) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$31.75, compared to a current price of NT$28.00 — trading 11.8% below its estimated fair value. The current 9-Day RSI is 17.46 and 60.2% below the Construction industry median of 43.92. Longda Construction & Development's overall GF Score™ is 92/100 with 3 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 Longda Construction & Development (TPE:5519), the current 9-Day RSI is 17.46 as of Jul. 19, 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 Longda Construction & Development (TPE:5519) Overvalued in 2026?
Based on GuruFocus' analysis, Longda Construction & Development stock appears to be undervalued.
The current stock price of NT$28.00 is trading 11.8% below its estimated GF Value™ of NT$31.75.
GuruFocus considers Longda Construction & Development to be Modestly Undervalued.
Key valuation signals for TPE:5519:
9-Day RSI: 17.46
GF Value™: NT$31.75 vs. price of NT$28.00 (11.8% below fair value)
Industry Position: 60.2% below the Construction median (#48 of 1887)
No single metric tells the full story. See the TPE:5519 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Longda Construction & Development Business Description
Longda Construction & Development Corp is engaged in the integrated construction business of construction and civil engineering, as well as the development, leasing, and sale of residential housing and buildings. The group operates in two reportable segments namely Construction Division: This segment is responsible for comprehensive construction services, including building and civil engineering works. Property Development and Sales Division: This segment is responsible for the development, leasing, and sale of residential and commercial buildings. Geographically it's presence is in Taiwan and Japan regions.
92GF Score
Get the complete analysis for TPE:5519
9-Day RSI is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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