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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.
The industry rank for Nagaoka International's 9-Day RSI or its related term are showing as below:
TSE:6239's 9-Day RSI is ranked better than 65.56% of 1051
companies
in the Oil & Gas industry
Industry Median: 50.76
vs TSE:6239: 44.76
Nagaoka International (TSE:6239) 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.
Nagaoka International 9-Day RSI Related Terms
TSE:6239 vs VLO, MPC, PSX: 9-Day RSI Comparison
For the Oil & Gas Refining & Marketing subindustry, Nagaoka International'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.
Nagaoka International 9-Day RSI vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Nagaoka International's 9-Day RSI distribution charts can be found below:
* The bar in red indicates where Nagaoka International's 9-Day RSI falls into.
Nagaoka International (TSE:6239) 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.
Nagaoka International (TSE:6239) has a 9-Day RSI of 44.76 as of Jul. 17, 2026. According to the industry distribution chart, Nagaoka International ranks #362 out of 1051 companies in the Oil & Gas industry, placing it in the top 34.4%.
Is Nagaoka International's 9-Day RSI too high?
Nagaoka International's current 9-Day RSI is 44.76. The Oil & Gas industry median 9-Day RSI is 50.76. Nagaoka International's value of 44.76 is 11.8% below this industry median. Based on the distribution chart, Nagaoka International ranks #362 out of 1051 companies in the Oil & Gas industry, which is above the industry midpoint. Overall, Nagaoka International has a GF Score™ of 62/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Nagaoka International's 9-Day RSI compare to VLO and MPC?
According to the Oil & Gas industry distribution chart, Nagaoka International ranks #362 out of 1051 companies for 9-Day RSI. This puts Nagaoka International in the upper half of its industry. The industry median 9-Day RSI is 50.76. Nagaoka International's value of 44.76 is 11.8% 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 Oil & Gas company?
The median 9-Day RSI among Oil & Gas companies is 50.76, based on 1,051 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. Nagaoka International's current 9-Day RSI of 44.76 is 11.8% 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 Oil & Gas industry, the median 9-Day RSI is 50.76 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Nagaoka International's current 9-Day RSI is 44.76. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Nagaoka International stock overvalued right now?
Based on GuruFocus' analysis, Nagaoka International (TSE:6239) is currently considered Significantly Overvalued. The stock's GF Value™ is 円889.95, compared to a current price of 円1,315.00 — trading 47.8% above its estimated fair value. The current 9-Day RSI is 44.76 and 11.8% below the Oil & Gas industry median of 50.76. Nagaoka International's overall GF Score™ is 62/100 with 1 warning sign 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 Nagaoka International (TSE:6239), the current 9-Day RSI is 44.76 as of Jul. 17, 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 Nagaoka International (TSE:6239) Overvalued in 2026?
Based on GuruFocus' analysis, Nagaoka International stock appears to be overvalued.
The current stock price of 円1,315.00 is trading 47.8% above its estimated GF Value™ of 円889.95.
GuruFocus considers Nagaoka International to be Significantly Overvalued.
Key valuation signals for TSE:6239:
9-Day RSI: 44.76
GF Value™: 円889.95 vs. price of 円1,315.00 (47.8% above fair value)
Industry Position: 11.8% below the Oil & Gas median (#362 of 1051)
No single metric tells the full story. See the TSE:6239 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Nagaoka International Corp is engaged in the manufacturing and sale of equipment and systems for energy and water-related industries. The company has two reportable segments: energy-related business and water-related business. The energy-related business focuses on producing screen internals and internal equipment for oil refineries and petrochemical plants. The water-related business is involved in the manufacture and sale of water intake screens, Chemiless and Hisys systems, and the construction of water treatment plants. It generates the majority of its revenue from the Energy-related business segment.
62GF Score
Get the complete analysis for TSE:6239
9-Day RSI is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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