United MicroelectronicsTPE:2303 +5.16%73 PEG Ratio is 9.73 as of Jul. 08, 2026, which is 377% above its 10-year median of 2.04. GuruFocus rates TPE:2303 with a GF Score™ of 73/100 and a GF Value™ of NT$51.02 (Significantly Overvalued). The stock has 9 warning signs investors should review. Among 329 Semiconductors companies, United Microelectronics ranks worse than 74.47% on this metric.
* The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.
The historical rank and industry rank for United Microelectronics's PEG Ratio or its related term are showing as below:
TPE:2303'
s PEG Ratio Range Over the Past 10 Years
Min: 0.23 Med: 2.04 Max: 4580
Current: 9.73
During the past 13 years, United Microelectronics's highest PEG Ratio was 4580.00. The lowest was 0.23. And the median was 2.04.
TPE:2303's PEG Ratio is ranked worse than 74.47% of 329
companies
in the Semiconductors industry
Industry Median: 3.49
vs TPE:2303: 9.73
Peter Lynch thinks a company with a P/E ratio equal to its growth rate is fairly valued.
United Microelectronics (TPE:2303) PEG Ratio Explanation
To compare stocks with different growth rates, Peter Lynch invented a ratio called PEG Ratio. PEG Ratio is defined as the P/E ratio divided by the growth ratio. He thinks a company with a P/E ratio equal to its growth rate is fairly valued. Still he said he would rather buy a company growing 20% a year with a P/E of 20, instead of a company growing 10% a year with a P/E of 10.
* 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 PEG Ratio, along with its competitors' market caps and PEG 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 PEG Ratio vs Semiconductors Industry
For the Semiconductors industry and Technology sector, United Microelectronics's PEG Ratio distribution charts can be found below:
* The bar in red indicates where United Microelectronics's PEG Ratio falls into.
* 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.
* Note: The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.
United Microelectronics (TPE:2303) has a PEG Ratio of 9.73 as of Jul. 08, 2026. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on United Microelectronics and its competitors. This is 377% above median its historical median of 2.04. Over the past decade, United Microelectronics' PEG Ratio has ranged from 0.23 to 4,580.00. According to the industry distribution chart, United Microelectronics ranks #245 out of 329 companies in the Semiconductors industry, placing it in the top 74.5%.
Is United Microelectronics' PEG Ratio too high?
United Microelectronics' current PEG Ratio of 9.73 is 377% above median its 10-year median of 2.04. Over the past 10 years, this metric has ranged from a low of 0.23 to a high of 4,580.00. The Semiconductors industry median PEG Ratio is 3.49. United Microelectronics' value of 9.73 is 178.8% above this industry median. Based on the distribution chart, United Microelectronics ranks #245 out of 329 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' PEG Ratio compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, United Microelectronics ranks #245 out of 329 companies for PEG Ratio. This places United Microelectronics in the lower half of its industry. The industry median PEG Ratio is 3.49. United Microelectronics' value of 9.73 is 178.8% above this benchmark. Historically, United Microelectronics' own PEG Ratio has ranged from 0.23 to 4,580.00 over the past decade. While the company's 10-year median is 2.04 vs. the industry median of 3.49, 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 PEG Ratio for a Semiconductors company?
The median PEG Ratio among Semiconductors companies is 3.49, based on 329 companies in the industry. Companies in the top quartile (top 25%) have a PEG Ratio significantly above this median, while those in the bottom quartile fall well below. However, PEG Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. United Microelectronics's current PEG Ratio of 9.73 is 178.8% 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 PEG Ratio mean?
A high PEG Ratio can signal that a stock is expensive relative to its fundamentals. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on United Microelectronics and its competitors. For the Semiconductors industry, the median PEG Ratio is 3.49 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. United Microelectronics's current PEG Ratio is 9.73, which is 377% above median its own 10-year median of 2.04. 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$51.02, compared to a current price of NT$163.00 — trading 219.5% above its estimated fair value. The current PEG Ratio is 9.73, which is 377% above median its 10-year median of 2.04 and 178.8% above the Semiconductors industry median of 3.49. 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 PEG Ratio calculated?
PEG Ratio is calculated from a company's financial statements. For United Microelectronics (TPE:2303), the current PEG Ratio is 9.73 as of Jul. 08, 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$163.00 is trading 219.5% above its estimated GF Value™ of NT$51.02.
GuruFocus considers United Microelectronics to be Significantly Overvalued.
Key valuation signals for TPE:2303:
PEG Ratio: 9.73 (377% above median its 10-year median of 2.04)
GF Value™: NT$51.02 vs. price of NT$163.00 (219.5% above fair value)
Industry Position: 178.8% above the Semiconductors median (#245 of 329)
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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