Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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.
Delta Electronics 9-Day RSI Related Terms
TPE:2308 vs APH, GLW, TEL: 9-Day RSI Comparison
For the Electronic Components subindustry, Delta Electronics'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.
Delta Electronics 9-Day RSI vs Hardware Industry
For the Hardware industry and Technology sector, Delta Electronics's 9-Day RSI distribution charts can be found below:
* The bar in red indicates where Delta Electronics'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.
Delta Electronics (TPE:2308) has a 9-Day RSI of 48.53 as of Jul. 22, 2026. According to the industry distribution chart, Delta Electronics ranks #1508 out of 2528 companies in the Hardware industry, placing it in the top 59.7%.
Is Delta Electronics' 9-Day RSI too high?
Delta Electronics' current 9-Day RSI is 48.53. The Hardware industry median 9-Day RSI is 40.48. Delta Electronics' value of 48.53 is 19.9% above this industry median. Based on the distribution chart, Delta Electronics ranks #1508 out of 2528 companies in the Hardware industry, which is below the industry midpoint. Overall, Delta Electronics has a GF Score™ of 73/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Delta Electronics' 9-Day RSI compare to APH and GLW?
According to the Hardware industry distribution chart, Delta Electronics ranks #1508 out of 2528 companies for 9-Day RSI. This places Delta Electronics in the lower half of its industry. The industry median 9-Day RSI is 40.48. Delta Electronics' value of 48.53 is 19.9% above 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 Hardware company?
The median 9-Day RSI among Hardware companies is 40.48, based on 2,528 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. Delta Electronics's current 9-Day RSI of 48.53 is 19.9% above 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 Hardware industry, the median 9-Day RSI is 40.48 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Delta Electronics's current 9-Day RSI is 48.53. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Delta Electronics stock overvalued right now?
Based on GuruFocus' analysis, Delta Electronics (TPE:2308) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$653.15, compared to a current price of NT$1,880.00 — trading 187.8% above its estimated fair value. The current 9-Day RSI is 48.53 and 19.9% above the Hardware industry median of 40.48. Delta Electronics' overall GF Score™ is 73/100 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 Delta Electronics (TPE:2308), the current 9-Day RSI is 48.53 as of Jul. 22, 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 Delta Electronics (TPE:2308) Overvalued in 2026?
Based on GuruFocus' analysis, Delta Electronics stock appears to be overvalued.
The current stock price of NT$1,880.00 is trading 187.8% above its estimated GF Value™ of NT$653.15.
GuruFocus considers Delta Electronics to be Significantly Overvalued.
Key valuation signals for TPE:2308:
9-Day RSI: 48.53
GF Value™: NT$653.15 vs. price of NT$1,880.00 (187.8% above fair value)
Industry Position: 19.9% above the Hardware median (#1508 of 2528)
No single metric tells the full story. See the TPE:2308 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Founded in 1971 and headquartered in Taiwan, Delta Electronics is a global leader in power and thermal solutions. The company offers a wide range of products, with end applications spanning consumer electronics, data centers, industrial equipment, electric vehicles, and renewable energy systems. Delta operates across four business segments: power electronics, mobility, automation, and infrastructure.
73GF Score
Get the complete analysis for TPE:2308
9-Day RSI is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
TPE:2308 has been successfully added to your 
