Lee Chang Yung TechnologyTPE:4989 50 PS Ratio is 4.98 as of Jul. 11, 2026, which is 365% above its 10-year median of 1.07. GuruFocus rates TPE:4989 with a GF Score™ of 50/100 and a GF Value™ of NT$16.68 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 751 Metals & Mining companies, Lee Chang Yung Technology ranks worse than 68.97% on this metric.
The PS Ratio, or Price-to-Sales ratio, or Price/Sales, is a financial ratio used to compare a company's market price to its Revenue per Share. As of today, Lee Chang Yung Technology's share price is NT$91.80.
Lee Chang Yung Technology's Revenue per Share for the trailing twelve months (TTM) ended in Dec. 2025 was NT$18.45. Hence, Lee Chang Yung Technology's PS Ratio for today is 4.98.
The historical rank and industry rank for Lee Chang Yung Technology's PS Ratio or its related term are showing as below:
TPE:4989'
s PS Ratio Range Over the Past 10 Years
Min: 0.12 Med: 1.07 Max: 5.99
Current: 4.98
During the past 13 years, Lee Chang Yung Technology's highest PS Ratio was 5.99. The lowest was 0.12. And the median was 1.07.
TPE:4989's PS Ratio is ranked worse than 68.97% of 751
companies
in the Metals & Mining industry
Industry Median: 2.32
vs TPE:4989: 4.98
Lee Chang Yung Technology Corp revenue per share has been in decline for the last 5 years.
During the past 12 months, the average Revenue per Share Growth Rate of Lee Chang Yung Technology was -11.10% per year.
During the past 3 years, the average Revenue per Share Growth Rate was -13.00% per year.
During the past 5 years, the average Revenue per Share Growth Rate was -3.80% per year.
During the past 10 years, the average Revenue per Share Growth Rate was -0.80% per year.
During the past 13 years, Lee Chang Yung Technology's highest 3-Year average Revenue per Share Growth Rate was 62.50% per year. The lowest was -56.10% per year. And the median was -0.15% per year.
Back to Basics: PS Ratio
Lee Chang Yung Technology (TPE:4989) PS Ratio Explanation
The PS Ratio is an excellent valuation indicator if you want to compare a stock with its historical valuation or with the stocks in the same industry. The PS Ratio works especially well when you want to compare the stock's current valuation with its historical valuation. The PS Ratio is a great valuation tool for evaluating cyclical businesses where the PE Ratio works poorly. It works the best when comparing the current valuation with the historical valuation because over time, a company's profit margin tends to revert to the mean.
When the PS Ratio is applied to the whole stock market, it can be used to evaluate the current market valuation and projected returns. In this case, the price is the total market cap of all stocks that are traded, and sales are the GDP of the country. This is how Warren Buffett estimates the broad market valuation and project future returns.
The PS Ratio does not tell you how cheap or expensive the stock is. It cannot be used to compare companies in different industries. It works better for companies within the same industry because these companies tend to have similar capital structures and profit margins. It works the best when comparing a company with itself in the past.
Lee Chang Yung Technology PS Ratio Related Terms
Lee Chang Yung Technology PS Ratio Historical Data
* 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.
For the Copper subindustry, Lee Chang Yung Technology's PS Ratio, along with its competitors' market caps and PS Ratio 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.
Lee Chang Yung Technology PS Ratio vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Lee Chang Yung Technology's PS Ratio distribution charts can be found below:
* The bar in red indicates where Lee Chang Yung Technology's PS Ratio falls into.
The PS Ratio, or Price-to-Sales ratio, or Price/Sales, is a financial ratio used to compare a company's market price to its Revenue per Share. It is a ratio widely used to value stocks and it was first used by Ken Fisher.
Lee Chang Yung Technology's Share Price of today is NT$91.80. Lee Chang Yung Technology's Revenue per Share for the trailing twelve months (TTM) ended in Dec. 2025 adds up the quarterly data reported by the company within the most recent 12 months, which was NT$18.45.
* 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.
It can also be calculated from the numbers for the whole company:
Lee Chang Yung Technology (TPE:4989) has a PS Ratio of 4.98 as of Jul. 11, 2026. Price-to-Sales ratio is the ratio of share price to a company's revenue per share. View historical data on Lee Chang Yung Technology and its competitors. This is 365% above median its historical median of 1.07. Over the past decade, Lee Chang Yung Technology's PS Ratio has ranged from 0.12 to 5.99. According to the industry distribution chart, Lee Chang Yung Technology ranks #518 out of 751 companies in the Metals & Mining industry, placing it in the top 69%.
Is Lee Chang Yung Technology's PS Ratio too high?
Lee Chang Yung Technology's current PS Ratio of 4.98 is 365% above median its 10-year median of 1.07. Over the past 10 years, this metric has ranged from a low of 0.12 to a high of 5.99. The Metals & Mining industry median PS Ratio is 2.32. Lee Chang Yung Technology's value of 4.98 is 114.7% above this industry median. Based on the distribution chart, Lee Chang Yung Technology ranks #518 out of 751 companies in the Metals & Mining industry, which is below the industry midpoint. Overall, Lee Chang Yung Technology has a GF Score™ of 50/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Lee Chang Yung Technology's PS Ratio compare to SCCO and FCX?
According to the Metals & Mining industry distribution chart, Lee Chang Yung Technology ranks #518 out of 751 companies for PS Ratio. This places Lee Chang Yung Technology in the lower half of its industry. The industry median PS Ratio is 2.32. Lee Chang Yung Technology's value of 4.98 is 114.7% above this benchmark. Historically, Lee Chang Yung Technology's own PS Ratio has ranged from 0.12 to 5.99 over the past decade. While the company's 10-year median is 1.07 vs. the industry median of 2.32, Lee Chang Yung Technology has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PS Ratio for a Metals & Mining company?
The median PS Ratio among Metals & Mining companies is 2.32, based on 751 companies in the industry. Companies in the top quartile (top 25%) have a PS Ratio significantly above this median, while those in the bottom quartile fall well below. However, PS Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Lee Chang Yung Technology's current PS Ratio of 4.98 is 114.7% 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 PS Ratio mean?
A high PS Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Sales ratio is the ratio of share price to a company's revenue per share. View historical data on Lee Chang Yung Technology and its competitors. For the Metals & Mining industry, the median PS Ratio is 2.32 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Lee Chang Yung Technology's current PS Ratio is 4.98, which is 365% above median its own 10-year median of 1.07. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Lee Chang Yung Technology stock overvalued right now?
Based on GuruFocus' analysis, Lee Chang Yung Technology (TPE:4989) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$16.68, compared to a current price of NT$91.80 — trading 450.4% above its estimated fair value. The current PS Ratio is 4.98, which is 365% above median its 10-year median of 1.07 and 114.7% above the Metals & Mining industry median of 2.32. Lee Chang Yung Technology's overall GF Score™ is 50/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PS Ratio calculated?
PS Ratio is calculated from a company's financial statements. For Lee Chang Yung Technology (TPE:4989), the current PS Ratio is 4.98 as of Jul. 11, 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 Lee Chang Yung Technology (TPE:4989) Overvalued in 2026?
Based on GuruFocus' analysis, Lee Chang Yung Technology stock appears to be overvalued.
The current stock price of NT$91.80 is trading 450.4% above its estimated GF Value™ of NT$16.68.
GuruFocus considers Lee Chang Yung Technology to be Significantly Overvalued.
Key valuation signals for TPE:4989:
PS Ratio: 4.98 (365% above median its 10-year median of 1.07)
GF Value™: NT$16.68 vs. price of NT$91.80 (450.4% above fair value)
Industry Position: 114.7% above the Metals & Mining median (#518 of 751)
No single metric tells the full story. See the TPE:4989 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Lee Chang Yung Technology Corp produces, manufactures, and sells electrolytic copper foil, an upstream material for printed circuit boards. The Group currently sells a single product, copper foil.
50GF Score
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