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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. 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 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.
POSCO-Thainox PCL 9-Day RSI Related Terms
BKK:INOX vs NUE, STLD, RS: 9-Day RSI Comparison
For the Steel subindustry, POSCO-Thainox PCL'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.
POSCO-Thainox PCL 9-Day RSI vs Steel Industry
For the Steel industry and Basic Materials sector, POSCO-Thainox PCL's 9-Day RSI distribution charts can be found below:
* The bar in red indicates where POSCO-Thainox PCL'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.
POSCO-Thainox PCL (BKK:INOX) has a 9-Day RSI of 48.70 as of Aug. 04, 2026. According to the industry distribution chart, POSCO-Thainox PCL ranks #315 out of 654 companies in the Steel industry, placing it in the top 48.2%.
Is POSCO-Thainox PCL's 9-Day RSI too high?
POSCO-Thainox PCL's current 9-Day RSI is 48.70. The Steel industry median 9-Day RSI is 49.29. POSCO-Thainox PCL's value of 48.70 is 1.2% below this industry median. Based on the distribution chart, POSCO-Thainox PCL ranks #315 out of 654 companies in the Steel industry, which is above the industry midpoint. Overall, POSCO-Thainox PCL has a GF Score™ of 63/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does POSCO-Thainox PCL's 9-Day RSI compare to NUE and STLD?
According to the Steel industry distribution chart, POSCO-Thainox PCL ranks #315 out of 654 companies for 9-Day RSI. This puts POSCO-Thainox PCL in the upper half of its industry. The industry median 9-Day RSI is 49.29. POSCO-Thainox PCL's value of 48.70 is 1.2% 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 Steel company?
The median 9-Day RSI among Steel companies is 49.29, based on 654 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. POSCO-Thainox PCL's current 9-Day RSI of 48.70 is 1.2% 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 Steel industry, the median 9-Day RSI is 49.29 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. POSCO-Thainox PCL's current 9-Day RSI is 48.70. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is POSCO-Thainox PCL stock overvalued right now?
Based on GuruFocus' analysis, POSCO-Thainox PCL (BKK:INOX) is currently considered Fairly Valued. The stock's GF Value™ is ฿4.08, compared to a current price of ฿4.16 — trading 2% above its estimated fair value. The current 9-Day RSI is 48.70 and 1.2% below the Steel industry median of 49.29. POSCO-Thainox PCL's overall GF Score™ is 63/100 with 4 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 POSCO-Thainox PCL (BKK:INOX), the current 9-Day RSI is 48.70 as of Aug. 04, 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 POSCO-Thainox PCL (BKK:INOX) Overvalued in 2026?
Based on GuruFocus' analysis, POSCO-Thainox PCL stock appears to be overvalued.
The current stock price of ฿4.16 is trading 2% above its estimated GF Value™ of ฿4.08.
GuruFocus considers POSCO-Thainox PCL to be Fairly Valued.
Key valuation signals for BKK:INOX:
9-Day RSI: 48.70
GF Value™: ฿4.08 vs. price of ฿4.16 (2% above fair value)
Industry Position: 1.2% below the Steel median (#315 of 654)
No single metric tells the full story. See the BKK:INOX stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
POSCO-Thainox PCL is engaged in production and sales of cold-rolled stainless steel as raw material in the production of household appliances such as kitchenette, sinks, washing machines etc. including other industries. Its products portfolio includes Austenitic Stainless Steel and Ferritic Stainless Steel. The company's products are used in Automotive and Transportation Parts, Electrical Home Appliances, Kitchenware, Food Processing and Medical Equipment, Heavy Industry, Energy and Environment, and Architecture, Building and Construction industries.
63GF Score
Get the complete analysis for BKK:INOX
9-Day RSI is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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