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United MicroelectronicsUMC -1.44%76 Graham Number is $10.73 as of Jun. 2026, which is 1018% above its 10-year median of 0.96. GuruFocus rates UMC with a GF Score™ of 76/100 and a GF Value™ of $8.94 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 660 Semiconductors companies, United Microelectronics ranks better than 59.24% on this metric.
Graham Number is a figure that measures a stock's fundamental value by taking into account the company's earnings per share and book value per share. The Graham number is the upper bound of the price range that a defensive investor should pay for the stock. According to the theory, any stock price below the Graham number is considered undervalued, and thus worth investing in.
The historical rank and industry rank for United Microelectronics's Graham Number or its related term are showing as below:
UMC'
s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.61 Med: 0.96 Max: 2.43
Current: 1.52
During the past 13 years, the highest Price to Graham Number ratio of United Microelectronics was 2.43. The lowest was 0.61. And the median was 0.96.
UMC's Price-to-Graham-Number is ranked better than 59.24% of 660
companies
in the Semiconductors industry
Industry Median: 2.43
vs UMC: 1.52
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
United Microelectronics (NYSE:UMC) Graham Number Explanation
Ben Graham actually did not publish a formula like this. But he wrote in The Intelligent Investor (1948 version) regarding to the criteria for purchases:
Current price should not be more than 15 times average earnings of the past three years.
Current price should not be more than 1.5 times the book value last reported. However, a multiplier of earnings below 15 could justify a correspondingly higher multiplier of assets. As a rule of thumb we suggest that the product of the multiplier times the ratio of price to book value should not exceed 22.5. (This figure corresponds to 15 times earnings and 1.5 times book value. It would admit an issue selling at only 9 times earnings and 2.5 times asset value, etc.)
Unlike valuation methods such as DCF or Discounted Earnings, the Graham number does not take growth into the valuation. Unlike the valuation methods based on book value alone, it takes into account the earnings power. Therefore, the Graham Number is a combination of asset valuation and earnings power valuation.
In general, the Graham number is a very conservative way of valuing a stock. It cannot be applied to companies with negative book values.
United Microelectronics's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Jun. 2026 )
=
17.11
/
10.73
=
1.59
* 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.
Be Aware
Please keep these in mind:
1. Graham Number does not take growth into account. Therefore it underestimates the values of the companies that have good earnings growth. We feel that if the earnings per share grows more than 10% a year, Graham Number underestimates the value.
2. Graham Number punishes the companies that have temporarily low earnings. Therefore, an average of earnings makes more sense in the calculation of Graham Number.
3. Graham Numbers underestimates companies that are light with book.
United Microelectronics Graham Number Related Terms
United Microelectronics Graham Number 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 Semiconductors subindustry, United Microelectronics's Price-to-Graham-Number, along with its competitors' market caps and Price-to-Graham-Number 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 Price-to-Graham-Number vs Semiconductors Industry
For the Semiconductors industry and Technology sector, United Microelectronics's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where United Microelectronics's Price-to-Graham-Number 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.
United Microelectronics (UMC) has a Graham Number of $10.73 as of Jun. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on United Microelectronics and its competitors. This is 1018% above median its historical median of 0.96. Over the past decade, United Microelectronics' Graham Number has ranged from 0.61 to 2.43. According to the industry distribution chart, United Microelectronics ranks #269 out of 660 companies in the Semiconductors industry, placing it in the top 40.8%.
Is United Microelectronics' Graham Number too high?
United Microelectronics' current Graham Number of $10.73 is 1018% above median its 10-year median of 0.96. Over the past 10 years, this metric has ranged from a low of 0.61 to a high of 2.43. The Semiconductors industry median Graham Number is 2.43. United Microelectronics' value of $10.73 is 341.6% above this industry median. Based on the distribution chart, United Microelectronics ranks #269 out of 660 companies in the Semiconductors industry, which is above the industry midpoint. Overall, United Microelectronics has a GF Score™ of 76/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does United Microelectronics' Graham Number compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, United Microelectronics ranks #269 out of 660 companies for Graham Number. This puts United Microelectronics in the upper half of its industry. The industry median Graham Number is 2.43. United Microelectronics' value of $10.73 is 341.6% above this benchmark. Historically, United Microelectronics' own Graham Number has ranged from 0.61 to 2.43 over the past decade. While the company's 10-year median is 0.96 vs. the industry median of 2.43, 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 Graham Number for a Semiconductors company?
The median Graham Number among Semiconductors companies is 2.43, based on 660 companies in the industry. Companies in the top quartile (top 25%) have a Graham Number significantly above this median, while those in the bottom quartile fall well below. However, Graham Number should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. United Microelectronics's current Graham Number of $10.73 is 341.6% 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 Graham Number mean?
A high Graham Number can signal that a stock is expensive relative to its fundamentals. The Graham Number values a company based on its per-share earnings and book value. View historical data on United Microelectronics and its competitors. For the Semiconductors industry, the median Graham Number is 2.43 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. United Microelectronics's current Graham Number is $10.73, which is 1018% above median its own 10-year median of 0.96. 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 (UMC) is currently considered Significantly Overvalued. The stock's GF Value™ is $8.94, compared to a current price of $17.11 — trading 91.4% above its estimated fair value. The current Graham Number is $10.73, which is 1018% above median its 10-year median of 0.96 and 341.6% above the Semiconductors industry median of 2.43. United Microelectronics' overall GF Score™ is 76/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Graham Number calculated?
Graham Number is calculated from a company's financial statements. For United Microelectronics (UMC), the current Graham Number is $10.73 as of Jun. 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 (UMC) Overvalued in 2026?
Based on GuruFocus' analysis, United Microelectronics stock appears to be overvalued.
The current stock price of $17.11 is trading 91.4% above its estimated GF Value™ of $8.94.
GuruFocus considers United Microelectronics to be Significantly Overvalued.
Key valuation signals for UMC:
Graham Number: $10.73 (1018% above median its 10-year median of 0.96)
GF Value™: $8.94 vs. price of $17.11 (91.4% above fair value)
Industry Position: 341.6% above the Semiconductors median (#269 of 660)
No single metric tells the full story. See the UMC 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.
76GF Score
Get the complete analysis for UMC
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