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United MicroelectronicsTPE:2303 -3.61%73 PS Ratio is 8.18 as of Jul. 16, 2026, which is 282% above its 10-year median of 2.14. GuruFocus rates TPE:2303 with a GF Score™ of 73/100 and a GF Value™ of NT$51.17 (Significantly Overvalued). The stock has 9 warning signs investors should review. Among 1,020 Semiconductors companies, United Microelectronics ranks worse than 68.33% 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, United Microelectronics's share price is NT$160.00.
United Microelectronics's Revenue per Share for the trailing twelve months (TTM) ended in Mar. 2026 was NT$19.56. Hence, United Microelectronics's PS Ratio for today is 8.18.
Warning Sign:
United Microelectronics Corp stock PS Ratio (=8.49) is close to 10-year high of 8.72.
The historical rank and industry rank for United Microelectronics's PS Ratio or its related term are showing as below:
TPE:2303'
s PS Ratio Range Over the Past 10 Years
Min: 0.92 Med: 2.14 Max: 8.72
Current: 8.18
During the past 13 years, United Microelectronics's highest PS Ratio was 8.72. The lowest was 0.92. And the median was 2.14.
TPE:2303's PS Ratio is ranked worse than 68.33% of 1020
companies
in the Semiconductors industry
Industry Median: 4.2
vs TPE:2303: 8.18
United Microelectronics Corp revenue per share has been in decline over the past 3 years.
During the past 12 months, the average Revenue per Share Growth Rate of United Microelectronics was 2.40% per year.
During the past 3 years, the average Revenue per Share Growth Rate was -4.80% per year.
During the past 5 years, the average Revenue per Share Growth Rate was 4.20% per year.
During the past 10 years, the average Revenue per Share Growth Rate was 7.60% per year.
During the past 13 years, United Microelectronics's highest 3-Year average Revenue per Share Growth Rate was 24.90% per year. The lowest was -10.20% per year. And the median was 5.95% per year.
Back to Basics: PS Ratio
United Microelectronics (TPE:2303) 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.
* 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 Semiconductors subindustry, United Microelectronics'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.
United Microelectronics PS Ratio vs Semiconductors Industry
For the Semiconductors industry and Technology sector, United Microelectronics's PS Ratio distribution charts can be found below:
* The bar in red indicates where United Microelectronics'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.
United Microelectronics's Share Price of today is NT$160.00. United Microelectronics's Revenue per Share for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was NT$19.56.
* 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:
United Microelectronics (TPE:2303) has a PS Ratio of 8.18 as of Jul. 16, 2026. Price-to-Sales ratio is the ratio of share price to a company's revenue per share. View historical data on United Microelectronics and its competitors. This is 282% above median its historical median of 2.14. Over the past decade, United Microelectronics' PS Ratio has ranged from 0.92 to 8.72. According to the industry distribution chart, United Microelectronics ranks #697 out of 1020 companies in the Semiconductors industry, placing it in the top 68.3%.
Is United Microelectronics' PS Ratio too high?
United Microelectronics' current PS Ratio of 8.18 is 282% above median its 10-year median of 2.14. Over the past 10 years, this metric has ranged from a low of 0.92 to a high of 8.72. The Semiconductors industry median PS Ratio is 4.20. United Microelectronics' value of 8.18 is 94.8% above this industry median. Based on the distribution chart, United Microelectronics ranks #697 out of 1020 companies in the Semiconductors industry, which is below the industry midpoint. Overall, United Microelectronics has a GF Score™ of 73/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does United Microelectronics' PS Ratio compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, United Microelectronics ranks #697 out of 1020 companies for PS Ratio. This places United Microelectronics in the lower half of its industry. The industry median PS Ratio is 4.20. United Microelectronics' value of 8.18 is 94.8% above this benchmark. Historically, United Microelectronics' own PS Ratio has ranged from 0.92 to 8.72 over the past decade. While the company's 10-year median is 2.14 vs. the industry median of 4.20, United Microelectronics 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 Semiconductors company?
The median PS Ratio among Semiconductors companies is 4.20, based on 1,020 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. United Microelectronics's current PS Ratio of 8.18 is 94.8% 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 United Microelectronics and its competitors. For the Semiconductors industry, the median PS Ratio is 4.20 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. United Microelectronics's current PS Ratio is 8.18, which is 282% above median its own 10-year median of 2.14. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is United Microelectronics stock overvalued right now?
Based on GuruFocus' analysis, United Microelectronics (TPE:2303) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$51.17, compared to a current price of NT$160.00 — trading 212.7% above its estimated fair value. The current PS Ratio is 8.18, which is 282% above median its 10-year median of 2.14 and 94.8% above the Semiconductors industry median of 4.20. United Microelectronics' overall GF Score™ is 73/100 with 9 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 United Microelectronics (TPE:2303), the current PS Ratio is 8.18 as of Jul. 16, 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 United Microelectronics (TPE:2303) Overvalued in 2026?
Based on GuruFocus' analysis, United Microelectronics stock appears to be overvalued.
The current stock price of NT$160.00 is trading 212.7% above its estimated GF Value™ of NT$51.17.
GuruFocus considers United Microelectronics to be Significantly Overvalued.
Key valuation signals for TPE:2303:
PS Ratio: 8.18 (282% above median its 10-year median of 2.14)
GF Value™: NT$51.17 vs. price of NT$160.00 (212.7% above fair value)
Industry Position: 94.8% above the Semiconductors median (#697 of 1020)
No single metric tells the full story. See the TPE:2303 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Founded in 1980, United Microelectronics is the world's third-largest dedicated chip foundry, with close to 5% market share in 2025 after TSMC and SMIC. UMC's headquarters are in Hsinchu, Taiwan, and it operates 12 fabs in Taiwan, Mainland China, Japan and Singapore, with additional sales offices in Europe, the US, and South Korea. UMC features a diverse customer base that includes Texas Instruments, MediaTek, Intel, Broadcom, Novatek, and Realtek, supplying a wide range of products applied in communications, display, memory, automotive and more. UMC employs about 19,000 people as of February 2025.
73GF Score
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