United Microelectronics (TPE:2303) Shares Outstanding (Basic Average): 12,491 Mil (As of Mar. 2026)


TPE:2303 United Microelectronics Corp TPE:2303
73 GF Score
Price NT$178.00
GF Value NT$50.69
Valuation Significantly Overvalued
! 9 Warning Signs
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What is United Microelectronics Shares Outstanding (Basic Average)?

United Microelectronics TPE:2303 +4.71% 73 Shares Outstanding (Basic Average) is 12,491 Mil as of Mar. 2026. GuruFocus rates TPE:2303 with a GF Score™ of 73/100 and a GF Value™ of NT$50.69 (Significantly Overvalued). The stock has 9 warning signs investors should review.

Shares outstanding are shares that have been authorized, issued, and purchased by investors and are held by them. United Microelectronics's average basic shares outstanding for the quarter that ended in Mar. 2026 was 12,491 Mil.


United Microelectronics  (TPE:2303) Shares Outstanding (Basic Average) Explanation

A company may buy back shares or issue shares in any fiscal period. If a company buys back shares, we should observe that the total number of shares decline. If the company issues new shares, the number of shares outstanding increases.


Be Aware

Usually the presence of treasury shares and a history of buyback are good indicators that company has competitive advantage. But studies have shown that companies usually buy back at wrong time. Buying back shares below its intrinsic value increases value for remaining shareholders. Buying back overvalued shares destroys value for existing shareholders.


United Microelectronics Shares Outstanding (Basic Average) Related Terms


United Microelectronics Shares Outstanding (Basic Average) Historical Data

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The historical data trend for United Microelectronics's Shares Outstanding (Basic Average) can be seen below:

* 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 Shares Outstanding (Basic Average) Chart

United Microelectronics Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shares Outstanding (Basic Average)
Get a 7-Day Free Trial Premium Member Only Premium Member Only 12,005.13 12,095.31 12,137.95 12,173.19 12,224.78

United Microelectronics Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Shares Outstanding (Basic Average) Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 12,484.78 12,484.88 12,485.16 11,444.31 12,491.21
TPE:2303
73GF Score
United Microelectronics Corp TPE:2303
Shares Outstanding (Basic Average) is just one metric. See GF Score™, valuation, warning signs, and more.
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United Microelectronics Shares Outstanding (Basic Average) Calculation

Shares outstanding are shares that have been authorized, issued, and purchased by investors and are held by them. They have voting rights and represent ownership in the corporation by the person that holds the shares. They should be distinguished from treasury shares, which are shares held by the corporation itself, having no exercisable rights.

Shares outstanding can be calculated as either basic or fully diluted. The fully diluted shares outstanding count includes diluting securities, such as options, warrants or convertibles.

Please note: GuruFocus named Shares Outstanding (EOP) is the shares for that exact time point. It is usually used to calculate balance sheet related items, such as Book Value per Share, etc. While Shares Outstanding (Diluted Average) and Shares Outstanding (Basic Average) are the weighted average shares over a period of time (a year, a quarter, or so). They are usually used to calculate income statement or cashflow statement related items, such as Earnings per Share (Diluted), etc.

What does a Shares Outstanding (Basic Average) of 12,491 Mil mean?
United Microelectronics (TPE:2303) has a Shares Outstanding (Basic Average) of 12,491 Mil as of Mar. 2026. The average shares outstanding over two periods not accounting for dilutive securities like convertible bonds. View historical data on United Microelectronics and its competitors.
Is United Microelectronics' Shares Outstanding (Basic Average) too high?
United Microelectronics' current Shares Outstanding (Basic Average) is 12,491 Mil. 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' Shares Outstanding (Basic Average) compare to NVDA and AVGO?
United Microelectronics' Shares Outstanding (Basic Average) of 12,491 Mil can be compared against companies in the Semiconductors industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Shares Outstanding (Basic Average) for a Semiconductors company?
A good Shares Outstanding (Basic Average) depends on the Semiconductors industry context. However, Shares Outstanding (Basic Average) should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Shares Outstanding (Basic Average) mean?
A high Shares Outstanding (Basic Average) can signal that a stock is expensive relative to its fundamentals. The average shares outstanding over two periods not accounting for dilutive securities like convertible bonds. View historical data on United Microelectronics and its competitors. United Microelectronics's current Shares Outstanding (Basic Average) is 12,491 Mil. 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$50.69, compared to a current price of NT$178.00 — trading 251.2% above its estimated fair value. The current Shares Outstanding (Basic Average) is 12,491 Mil. 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 Shares Outstanding (Basic Average) calculated?
Shares Outstanding (Basic Average) is calculated from a company's financial statements. For United Microelectronics (TPE:2303), the current Shares Outstanding (Basic Average) is 12,491 Mil as of Mar. 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$178.00 is trading 251.2% above its estimated GF Value™ of NT$50.69. GuruFocus considers United Microelectronics to be Significantly Overvalued.

Key valuation signals for TPE:2303:

  • Shares Outstanding (Basic Average): 12,491 Mil
  • GF Value™: NT$50.69 vs. price of NT$178.00 (251.2% above fair value)
  • GF Score™: 73/100 with 9 warning signs

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.


United Microelectronics Business Description

Address No. 3, Li-Hsin 2nd Road, Hsinchu Science Park, Hsinchu, TWN
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

Get the complete analysis for TPE:2303

Shares Outstanding (Basic Average) is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$178.00
Price
NT$50.69
GF Value