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.
Silicon Optronics 9-Day RSI Related Terms
TPE:3530 vs NVDA, AVGO, MU: 9-Day RSI Comparison
For the Semiconductors subindustry, Silicon Optronics'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.
Silicon Optronics 9-Day RSI vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Silicon Optronics's 9-Day RSI distribution charts can be found below:
* The bar in red indicates where Silicon Optronics'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.
Silicon Optronics (TPE:3530) has a 9-Day RSI of 36.50 as of Jul. 12, 2026. According to the industry distribution chart, Silicon Optronics ranks #165 out of 1032 companies in the Semiconductors industry, placing it in the top 16%.
Is Silicon Optronics' 9-Day RSI too high?
Silicon Optronics' current 9-Day RSI is 36.50. The Semiconductors industry median 9-Day RSI is 45.35. Silicon Optronics' value of 36.50 is 19.5% below this industry median. Based on the distribution chart, Silicon Optronics ranks #165 out of 1032 companies in the Semiconductors industry, which is in the top quartile — a strong position relative to peers. Overall, Silicon Optronics has a GF Score™ of 70/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Silicon Optronics' 9-Day RSI compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Silicon Optronics ranks #165 out of 1032 companies for 9-Day RSI. This places Silicon Optronics in the top 16% of its industry — outperforming the majority of peers. The industry median 9-Day RSI is 45.35. Silicon Optronics' value of 36.50 is 19.5% 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 Semiconductors company?
The median 9-Day RSI among Semiconductors companies is 45.35, based on 1,032 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. Silicon Optronics's current 9-Day RSI of 36.50 is 19.5% 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 Semiconductors industry, the median 9-Day RSI is 45.35 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Silicon Optronics's current 9-Day RSI is 36.50. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Silicon Optronics stock overvalued right now?
Based on GuruFocus' analysis, Silicon Optronics (TPE:3530) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$83.71, compared to a current price of NT$65.20 — trading 22.1% below its estimated fair value. The current 9-Day RSI is 36.50 and 19.5% below the Semiconductors industry median of 45.35. Silicon Optronics' overall GF Score™ is 70/100 with 3 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 Silicon Optronics (TPE:3530), the current 9-Day RSI is 36.50 as of Jul. 12, 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 Silicon Optronics (TPE:3530) Overvalued in 2026?
Based on GuruFocus' analysis, Silicon Optronics stock appears to be undervalued.
The current stock price of NT$65.20 is trading 22.1% below its estimated GF Value™ of NT$83.71.
GuruFocus considers Silicon Optronics to be Modestly Undervalued.
Key valuation signals for TPE:3530:
9-Day RSI: 36.50
GF Value™: NT$83.71 vs. price of NT$65.20 (22.1% below fair value)
Industry Position: 19.5% below the Semiconductors median (#165 of 1032)
No single metric tells the full story. See the TPE:3530 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Silicon Optronics Inc is engaged in the design, development, and sale of complementary metal-oxide semiconductors. Its products include image sensors and shutters. The company derives revenue from complementary metal-oxide semiconductors. Geographically, it operates in Hong Kong, the United States, Taiwan, and other countries, with the majority of revenue deriving from Hong Kong.
70GF Score
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