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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.
As of today (2026-07-27), Taiwan Glass Ind's 14-Day RSI is 30.22.
The industry rank for Taiwan Glass Ind's 14-Day RSI or its related term are showing as below:
TPE:1802's 14-Day RSI is ranked better than 92.1% of 443
companies
in the Building Materials industry
Industry Median: 45.9
vs TPE:1802: 30.22
Taiwan Glass Ind (TPE:1802) 14-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.
Taiwan Glass Ind 14-Day RSI Related Terms
TPE:1802 vs CRH, VMC, MLM: 14-Day RSI Comparison
For the Building Materials subindustry, Taiwan Glass Ind's 14-Day RSI, along with its competitors' market caps and 14-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 Glass Ind 14-Day RSI vs Building Materials Industry
For the Building Materials industry and Basic Materials sector, Taiwan Glass Ind's 14-Day RSI distribution charts can be found below:
* The bar in red indicates where Taiwan Glass Ind's 14-Day RSI falls into.
Taiwan Glass Ind (TPE:1802) 14-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.
Taiwan Glass Ind (TPE:1802) has a 14-Day RSI of 30.22 as of Jul. 27, 2026. Relative Strength Index (RSI) is a momentum oscillator that measures the speed and change of price movements. View historical data on Taiwan Glass Ind and its competitors. According to the industry distribution chart, Taiwan Glass Ind ranks #35 out of 443 companies in the Building Materials industry, placing it in the top 7.9%.
Is Taiwan Glass Ind's 14-Day RSI too high?
Taiwan Glass Ind's current 14-Day RSI is 30.22. The Building Materials industry median 14-Day RSI is 45.90. Taiwan Glass Ind's value of 30.22 is 34.2% below this industry median. Based on the distribution chart, Taiwan Glass Ind ranks #35 out of 443 companies in the Building Materials industry, which is in the top quartile — a strong position relative to peers. Overall, Taiwan Glass Ind has a GF Score™ of 45/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Taiwan Glass Ind's 14-Day RSI compare to CRH and VMC?
According to the Building Materials industry distribution chart, Taiwan Glass Ind ranks #35 out of 443 companies for 14-Day RSI. This places Taiwan Glass Ind in the top 8% of its industry — outperforming the majority of peers. The industry median 14-Day RSI is 45.90. Taiwan Glass Ind's value of 30.22 is 34.2% 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 14-Day RSI for a Building Materials company?
The median 14-Day RSI among Building Materials companies is 45.90, based on 443 companies in the industry. Companies in the top quartile (top 25%) have a 14-Day RSI significantly above this median, while those in the bottom quartile fall well below. However, 14-Day RSI should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Taiwan Glass Ind's current 14-Day RSI of 30.22 is 34.2% 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 14-Day RSI mean?
A high 14-Day RSI can signal that a stock is expensive relative to its fundamentals. Relative Strength Index (RSI) is a momentum oscillator that measures the speed and change of price movements. View historical data on Taiwan Glass Ind and its competitors. For the Building Materials industry, the median 14-Day RSI is 45.90 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Taiwan Glass Ind's current 14-Day RSI is 30.22. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Taiwan Glass Ind stock overvalued right now?
Based on GuruFocus' analysis, Taiwan Glass Ind (TPE:1802) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$18.84, compared to a current price of NT$51.00 — trading 170.7% above its estimated fair value. The current 14-Day RSI is 30.22 and 34.2% below the Building Materials industry median of 45.90. Taiwan Glass Ind's overall GF Score™ is 45/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 14-Day RSI calculated?
14-Day RSI is calculated from a company's financial statements. For Taiwan Glass Ind (TPE:1802), the current 14-Day RSI is 30.22 as of Jul. 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 Taiwan Glass Ind (TPE:1802) Overvalued in 2026?
Based on GuruFocus' analysis, Taiwan Glass Ind stock appears to be overvalued.
The current stock price of NT$51.00 is trading 170.7% above its estimated GF Value™ of NT$18.84.
GuruFocus considers Taiwan Glass Ind to be Significantly Overvalued.
Key valuation signals for TPE:1802:
14-Day RSI: 30.22
GF Value™: NT$18.84 vs. price of NT$51.00 (170.7% above fair value)
Industry Position: 34.2% below the Building Materials median (#35 of 443)
No single metric tells the full story. See the TPE:1802 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Taiwan Glass Ind Corp is engaged in the manufacturing, processing, and selling of various glass products. Its products include flat glass, auto glass, ultra-thin glass, photoelectric glass, fiber glass, and containers, tableware & kitchenware. The company's segments include Flat Glass Segment, engaged in the manufacturing and selling of flat glass; Glass Container Segment, engaged in the manufacturing and selling of glass containers; and Glass Fiber Segment, engaged in the manufacturing and selling of glass fibers. It derives the majority of its revenue from the Flat Glass segment. Geographically, its operations are spread across Taiwan, China, and Other countries.
45GF Score
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14-Day RSI is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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