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.
As of today (2026-07-18), Taiwan Secom Co's 9-Day RSI is 55.29.
The industry rank for Taiwan Secom Co's 9-Day RSI or its related term are showing as below:
TPE:9917's 9-Day RSI is ranked better than 54.09% of 1126
companies
in the Business Services industry
Industry Median: 51.35
vs TPE:9917: 55.29
Taiwan Secom Co (TPE:9917) 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.
Taiwan Secom Co 9-Day RSI Related Terms
TPE:9917 vs ALLE, MSA, ADT: 9-Day RSI Comparison
For the Security & Protection Services subindustry, Taiwan Secom Co'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.
Taiwan Secom Co 9-Day RSI vs Business Services Industry
For the Business Services industry and Industrials sector, Taiwan Secom Co's 9-Day RSI distribution charts can be found below:
* The bar in red indicates where Taiwan Secom Co'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.
Taiwan Secom Co (TPE:9917) has a 9-Day RSI of 55.29 as of Jul. 18, 2026. According to the industry distribution chart, Taiwan Secom Co ranks #517 out of 1126 companies in the Business Services industry, placing it in the top 45.9%.
Is Taiwan Secom Co's 9-Day RSI too high?
Taiwan Secom Co's current 9-Day RSI is 55.29. The Business Services industry median 9-Day RSI is 51.35. Taiwan Secom Co's value of 55.29 is 7.7% above this industry median. Based on the distribution chart, Taiwan Secom Co ranks #517 out of 1126 companies in the Business Services industry, which is above the industry midpoint. Overall, Taiwan Secom Co has a GF Score™ of 90/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Taiwan Secom Co's 9-Day RSI compare to ALLE and MSA?
According to the Business Services industry distribution chart, Taiwan Secom Co ranks #517 out of 1126 companies for 9-Day RSI. This puts Taiwan Secom Co in the upper half of its industry. The industry median 9-Day RSI is 51.35. Taiwan Secom Co's value of 55.29 is 7.7% 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 Business Services company?
The median 9-Day RSI among Business Services companies is 51.35, based on 1,126 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. Taiwan Secom Co's current 9-Day RSI of 55.29 is 7.7% 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 Business Services industry, the median 9-Day RSI is 51.35 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Taiwan Secom Co's current 9-Day RSI is 55.29. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Taiwan Secom Co stock overvalued right now?
Based on GuruFocus' analysis, Taiwan Secom Co (TPE:9917) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$140.03, compared to a current price of NT$109.00 — trading 22.2% below its estimated fair value. The current 9-Day RSI is 55.29 and 7.7% above the Business Services industry median of 51.35. Taiwan Secom Co's overall GF Score™ is 90/100 with 5 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 Taiwan Secom Co (TPE:9917), the current 9-Day RSI is 55.29 as of Jul. 18, 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 Taiwan Secom Co (TPE:9917) Overvalued in 2026?
Based on GuruFocus' analysis, Taiwan Secom Co stock appears to be undervalued.
The current stock price of NT$109.00 is trading 22.2% below its estimated GF Value™ of NT$140.03.
GuruFocus considers Taiwan Secom Co to be Modestly Undervalued.
Key valuation signals for TPE:9917:
9-Day RSI: 55.29
GF Value™: NT$140.03 vs. price of NT$109.00 (22.2% below fair value)
Industry Position: 7.7% above the Business Services median (#517 of 1126)
No single metric tells the full story. See the TPE:9917 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Taiwan Secom Co Ltd is engaged mainly in the security service. Its segments consist of Electronic systems segment engages in security system related service; Security services segment engages in security guarding related service; Cash delivery services engages in cash delivery service; Logistics services segment engages in logistic service; and Catering services segment engages in catering services. It derives the majority of revenue from Electronic systems segment.
90GF Score
Get the complete analysis for TPE:9917
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:9917 has been successfully added to your 
