TotalMarketCap

United Microelectronics

UMCNYSE TaiwanTechnologySemiconductors

Market cap

$57.452 B

$22.82 -2.10%

Close of 9 Oct 2026

As of 9 Oct 2026, United Microelectronics (UMC) has a market capitalization of $57.5B. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.

Revenue

—

Not reported

Earnings

—

Not reported

Shares outstanding

12,588,156,344

Latest filing cover page

P/E ratio

—

Cap ÷ net income

Semiconductors, ranked by market cap

All 100 →
  1. #15Astera LabsALAB$60.2B
  2. #16NXP SemiconductorsNXPI$58.3B
  3. #17United MicroelectronicsUMC$57.5B
  4. #18STMicroelectronicsSTM$47.0B
  5. #19Microchip TechnologyMCHP$41.0B

What if United Microelectronics were worth as much as…

Open the what-if tool →

Gold $29.1T

$11,543.33

Per share 506× higher

Bitcoin $1.66T

$659.58

Per share 28.9× higher

Nvidia $5.55T

$2,206.27

Per share 96.7× higher

Or at a round number

$100.0B$200.0B$500.0B$1.00T

Where these numbers come from

Share counts and financials for United Microelectronics are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Last updated 10 Oct 2026. Read the methodology.