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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 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.
Formosa Sumco Technology 9-Day RSI Related Terms
TPE:3532 vs AMAT, LRCX, KLAC: 9-Day RSI Comparison
For the Semiconductor Equipment & Materials subindustry, Formosa Sumco Technology'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.
Formosa Sumco Technology 9-Day RSI vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Formosa Sumco Technology's 9-Day RSI distribution charts can be found below:
* The bar in red indicates where Formosa Sumco Technology'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.
Formosa Sumco Technology (TPE:3532) has a 9-Day RSI of 76.80 as of Jul. 14, 2026. According to the industry distribution chart, Formosa Sumco Technology ranks #1011 out of 1032 companies in the Semiconductors industry, placing it in the top 98%.
Is Formosa Sumco Technology's 9-Day RSI too high?
Formosa Sumco Technology's current 9-Day RSI is 76.80. The Semiconductors industry median 9-Day RSI is 40.72. Formosa Sumco Technology's value of 76.80 is 88.6% above this industry median. Based on the distribution chart, Formosa Sumco Technology ranks #1011 out of 1032 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, Formosa Sumco Technology has a GF Score™ of 62/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Formosa Sumco Technology's 9-Day RSI compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, Formosa Sumco Technology ranks #1011 out of 1032 companies for 9-Day RSI. This places Formosa Sumco Technology in the lower half of its industry. The industry median 9-Day RSI is 40.72. Formosa Sumco Technology's value of 76.80 is 88.6% 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 Semiconductors company?
The median 9-Day RSI among Semiconductors companies is 40.72, 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. Formosa Sumco Technology's current 9-Day RSI of 76.80 is 88.6% 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 Semiconductors industry, the median 9-Day RSI is 40.72 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Formosa Sumco Technology's current 9-Day RSI is 76.80. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Formosa Sumco Technology stock overvalued right now?
Based on GuruFocus' analysis, Formosa Sumco Technology (TPE:3532) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$117.54, compared to a current price of NT$510.00 — trading 333.9% above its estimated fair value. The current 9-Day RSI is 76.80 and 88.6% above the Semiconductors industry median of 40.72. Formosa Sumco Technology's overall GF Score™ is 62/100 with 10 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 Formosa Sumco Technology (TPE:3532), the current 9-Day RSI is 76.80 as of Jul. 14, 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 Formosa Sumco Technology (TPE:3532) Overvalued in 2026?
Based on GuruFocus' analysis, Formosa Sumco Technology stock appears to be overvalued.
The current stock price of NT$510.00 is trading 333.9% above its estimated GF Value™ of NT$117.54.
GuruFocus considers Formosa Sumco Technology to be Significantly Overvalued.
Key valuation signals for TPE:3532:
9-Day RSI: 76.80
GF Value™: NT$117.54 vs. price of NT$510.00 (333.9% above fair value)
Industry Position: 88.6% above the Semiconductors median (#1011 of 1032)
No single metric tells the full story. See the TPE:3532 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Formosa Sumco Technology Corp is a Taiwan-based manufacturer and seller of silicon wafer electronic products. The company operates in two principal geographical areas: Taiwan, China, and Japan, with the majority of revenue from Taiwan. The company's product range includes Polished Wafers, Annealed Wafers, Test Wafers, and Epitaxial Wafers.
62GF Score
Get the complete analysis for TPE:3532
9-Day RSI is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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