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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.
Jong Shyn Shipbuilding Co (ROCO:2644) 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.
Jong Shyn Shipbuilding Co 9-Day RSI Related Terms
ROCO:2644 vs SPCX, GE, RTX: 9-Day RSI Comparison
For the Aerospace & Defense subindustry, Jong Shyn Shipbuilding Co'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.
Jong Shyn Shipbuilding Co 9-Day RSI vs Aerospace & Defense Industry
For the Aerospace & Defense industry and Industrials sector, Jong Shyn Shipbuilding Co's 9-Day RSI distribution charts can be found below:
* The bar in red indicates where Jong Shyn Shipbuilding Co's 9-Day RSI falls into.
Jong Shyn Shipbuilding Co (ROCO:2644) 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.
Jong Shyn Shipbuilding Co (ROCO:2644) has a 9-Day RSI of 38.15 as of Aug. 02, 2026. According to the industry distribution chart, Jong Shyn Shipbuilding Co ranks #68 out of 368 companies in the Aerospace & Defense industry, placing it in the top 18.5%.
Is Jong Shyn Shipbuilding Co's 9-Day RSI too high?
Jong Shyn Shipbuilding Co's current 9-Day RSI is 38.15. The Aerospace & Defense industry median 9-Day RSI is 46.62. Jong Shyn Shipbuilding Co's value of 38.15 is 18.2% below this industry median. Based on the distribution chart, Jong Shyn Shipbuilding Co ranks #68 out of 368 companies in the Aerospace & Defense industry, which is in the top quartile — a strong position relative to peers. Overall, Jong Shyn Shipbuilding Co has a GF Score™ of 53/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Jong Shyn Shipbuilding Co's 9-Day RSI compare to SPCX and GE?
According to the Aerospace & Defense industry distribution chart, Jong Shyn Shipbuilding Co ranks #68 out of 368 companies for 9-Day RSI. This places Jong Shyn Shipbuilding Co in the top 19% of its industry — outperforming the majority of peers. The industry median 9-Day RSI is 46.62. Jong Shyn Shipbuilding Co's value of 38.15 is 18.2% 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 an Aerospace & Defense company?
The median 9-Day RSI among Aerospace & Defense companies is 46.62, based on 368 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. Jong Shyn Shipbuilding Co's current 9-Day RSI of 38.15 is 18.2% 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 Aerospace & Defense industry, the median 9-Day RSI is 46.62 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Jong Shyn Shipbuilding Co's current 9-Day RSI is 38.15. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Jong Shyn Shipbuilding Co stock overvalued right now?
Based on GuruFocus' analysis, Jong Shyn Shipbuilding Co (ROCO:2644) is currently considered Possible Value Trap. The stock's GF Value™ is NT$131.87, compared to a current price of NT$80.50 — trading 39% below its estimated fair value. The current 9-Day RSI is 38.15 and 18.2% below the Aerospace & Defense industry median of 46.62. Jong Shyn Shipbuilding Co's overall GF Score™ is 53/100 with 7 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 Jong Shyn Shipbuilding Co (ROCO:2644), the current 9-Day RSI is 38.15 as of Aug. 02, 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 Jong Shyn Shipbuilding Co (ROCO:2644) Overvalued in 2026?
Based on GuruFocus' analysis, Jong Shyn Shipbuilding Co stock appears to be undervalued.
The current stock price of NT$80.50 is trading 39% below its estimated GF Value™ of NT$131.87.
GuruFocus considers Jong Shyn Shipbuilding Co to be Possible Value Trap.
Key valuation signals for ROCO:2644:
9-Day RSI: 38.15
GF Value™: NT$131.87 vs. price of NT$80.50 (39% below fair value)
Industry Position: 18.2% below the Aerospace & Defense median (#68 of 368)
No single metric tells the full story. See the ROCO:2644 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Jong Shyn Shipbuilding Co Ltd is engaged in the manufacturing and sale of ship vessels. The construction categories include patrol ships, lifeguard boats, passenger ships, oil and chemical tankers, high-tech research vessels, ultra-low temperature fridge vessels, yachts, and all kinds of fishing boats and others. Its services include Shipbuilding; Ship and Yacht repairing; Shaft Processing and Yacht Maintenance.
53GF Score
Get the complete analysis for ROCO:2644
9-Day RSI is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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