United Microelectronics Corporation's revenue has shrunk 5.2% a year over three years, and grown 6.1% a year over five, with earnings per share falling 23% a year. Revenue growth, 3-year annual rate: −5.2% (Semiconductors median +18%). Revenue growth, 5-year rate: +6.1%, growth has slowed since the five-year average. Earnings per share, 3-year rate: −23%, earnings lagged revenue: the growth is costing something. Years of annual history on file: 11, FY2015 to FY2025, as filed.

UMCUnited Microelectronics Corporation

Technology

$18.88+154% 1Y

$18.88

$7.0252 weeks$28.01

Is it growing?

Watch

Growth is fading: earnings down −17% year on year and operating margin narrowing (−5.8 points).

2 to watch, 1 neutral

Revenue trend+2% in a year

Trailing-twelve-month revenue vs a year earlier, from the company's own filings. Five-year pace: +6% a year.

Earnings trend−17% in a year

Trailing-twelve-month earnings per share against a year earlier. Growing slower than revenue, so the growth is costing something.

Margin direction−5.8 points operating

Trailing-twelve-month operating margin, 18.5% now against 24.3% a year earlier.

All from SEC EDGAR, as of Dec 31, 2025.

Where this answer is blind. These are trailing numbers from the filings, not forecasts: an acquisition or a one-off year can flatter them, so check the quarters.

Is UMC growing?

United Microelectronics Corporation's revenue has shrunk 5.2% a year over three years, and grown 6.1% a year over five, with earnings per share falling 23% a year.

−5.2%

Revenue growth, 3-year annual rate · Semiconductors median +18% · shrinking · compounded from fiscal years as filed

Revenue growth, 5-year rate: +6.1%
Revenue growth, 5-year rate · −5.2% over three · growth has slowed since the five-year average
Earnings per share, 3-year rate: −23%
Earnings per share, 3-year rate · revenue −5.2% · earnings lagged revenue: the growth is costing something
Years of annual history on file: 11
Years of annual history on file · FY2015 to FY2025, as filed