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.
STC:PLX's 9-Day RSI is ranked better than 69.3% of 1052
companies
in the Oil & Gas industry
Industry Median: 38.75
vs STC:PLX: 28.05
Vietnam National Petroleum Group (STC:PLX) 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.
Vietnam National Petroleum Group 9-Day RSI Related Terms
STC:PLX vs VLO, MPC, PSX: 9-Day RSI Comparison
For the Oil & Gas Refining & Marketing subindustry, Vietnam National Petroleum Group'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.
Vietnam National Petroleum Group 9-Day RSI vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Vietnam National Petroleum Group's 9-Day RSI distribution charts can be found below:
* The bar in red indicates where Vietnam National Petroleum Group's 9-Day RSI falls into.
Vietnam National Petroleum Group (STC:PLX) 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.
Vietnam National Petroleum Group (STC:PLX) has a 9-Day RSI of 28.05 as of Jun. 27, 2026. According to the industry distribution chart, Vietnam National Petroleum Group ranks #323 out of 1052 companies in the Oil & Gas industry, placing it in the top 30.7%.
Is Vietnam National Petroleum Group's 9-Day RSI too high?
Vietnam National Petroleum Group's current 9-Day RSI is 28.05. The Oil & Gas industry median 9-Day RSI is 38.75. Vietnam National Petroleum Group's value of 28.05 is 27.6% below this industry median. Based on the distribution chart, Vietnam National Petroleum Group ranks #323 out of 1052 companies in the Oil & Gas industry, which is above the industry midpoint. Overall, Vietnam National Petroleum Group has a GF Score™ of 92/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Vietnam National Petroleum Group's 9-Day RSI compare to VLO and MPC?
According to the Oil & Gas industry distribution chart, Vietnam National Petroleum Group ranks #323 out of 1052 companies for 9-Day RSI. This puts Vietnam National Petroleum Group in the upper half of its industry. The industry median 9-Day RSI is 38.75. Vietnam National Petroleum Group's value of 28.05 is 27.6% 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 38.75, based on 1,052 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. Vietnam National Petroleum Group's current 9-Day RSI of 28.05 is 27.6% 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 38.75 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Vietnam National Petroleum Group's current 9-Day RSI is 28.05. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Vietnam National Petroleum Group stock overvalued right now?
Based on GuruFocus' analysis, Vietnam National Petroleum Group (STC:PLX) is currently considered Modestly Undervalued. The stock's GF Value™ is ₫42,595.09, compared to a current price of ₫36,800.00 — trading 13.6% below its estimated fair value. The current 9-Day RSI is 28.05 and 27.6% below the Oil & Gas industry median of 38.75. Vietnam National Petroleum Group's overall GF Score™ is 92/100 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 Vietnam National Petroleum Group (STC:PLX), the current 9-Day RSI is 28.05 as of Jun. 27, 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 Vietnam National Petroleum Group (STC:PLX) Overvalued in 2026?
Based on GuruFocus' analysis, Vietnam National Petroleum Group stock appears to be undervalued.
The current stock price of ₫36,800.00 is trading 13.6% below its estimated GF Value™ of ₫42,595.09.
GuruFocus considers Vietnam National Petroleum Group to be Modestly Undervalued.
Key valuation signals for STC:PLX:
9-Day RSI: 28.05
GF Value™: ₫42,595.09 vs. price of ₫36,800.00 (13.6% below fair value)
Industry Position: 27.6% below the Oil & Gas median (#323 of 1052)
No single metric tells the full story. See the STC:PLX stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Vietnam National Petroleum Group Business Description
Vietnam National Petroleum Group is engaged in import, export, and deal in petroleum, refining, and petrochemical products. The firm also invests in fields like engineering, mechanical and oil equipment, insurance, banking, and other commercial activities.
92GF Score
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