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United Microelectronics Corp key statistics and ratios

In fiscal 2025, United Microelectronics Corp had return on equity of 11.4%, an operating margin of 18.5%, debt equal to 21.3% of equity and a current ratio of 2.29. Each ratio below is calculated from the figures on its income statement, balance sheet and cash flow pages.

Financial ratios

US$ thousands unless shown otherwise. Fiscal years, plus the last twelve months (LTM) when newer.

Fiscal year2015Dec 20152016Dec 20162017Dec 20172018Dec 20182019Dec 20192020Dec 20202021Dec 20212022Dec 20222023Dec 20232024Dec 20242025Dec 2025
Gross margin21.9%20.5%18.1%15.1%14.4%22.1%33.8%45.1%34.9%32.6%29.0%
Operating margin7.5%4.2%4.4%3.8%3.3%12.4%24.3%37.4%26.0%22.2%18.5%
Net margin9.2%5.8%6.5%5.1%5.5%12.9%24.1%32.1%26.8%21.0%17.0%
Free-cash-flow margin−0.5%−30.5%5.5%20.7%25.9%22.3%19.9%23.6%−2.5%2.3%21.9%
Return on equity6.1%4.0%4.7%3.7%3.9%10.6%21.0%30.1%17.7%13.6%11.4%
Return on assets—2.3%2.5%2.0%2.2%6.1%12.5%18.1%11.0%8.7%7.4%
Asset turnover—0.390.390.400.400.470.520.560.410.410.43
Current ratio—1.521.572.822.112.072.152.242.132.452.29
Debt to equity0.0%34.3%48.6%29.2%37.3%25.4%30.2%11.1%19.8%13.6%21.3%
Interest cover (operating income ÷ interest)37.3x10.4x8.6x8.0x5.7x41.2x88.8x159.7x92.8x74.0x58.9x
Effective tax rate7.5%11.7%12.9%—4.8%7.5%13.5%17.6%12.1%14.7%16.4%
R&D as % of revenue8.4%9.2%9.2%8.6%8.0%7.3%6.1%4.6%6.0%6.7%7.5%
Capital spending as % of revenue41.8%61.9%29.6%13.0%11.1%14.9%22.6%28.8%41.1%38.1%20.1%
Free cash flow ÷ net income−5.4%−523.2%85.1%408.3%470.7%172.3%82.6%73.5%−9.2%10.9%129.1%
Dividends ÷ net income52.4%80.1%63.1%111.5%84.7%42.7%38.8%————
Dividends and buybacks ÷ free cash flow——74.1%46.9%25.7%29.0%47.0%0.0%———

Returns use average equity or assets over the year. Return on equity is left blank when equity is negative or so small that the ratio says nothing (above ±200%); interest cover is left blank above 200 times. Price-based ratios such as P/E are on the valuation page.

Financial health

6 of 7 checks passed · December 31, 2025
What it owns · $18.1bn
Short-term assets $6.5bnLonger-term assets $11.6bn
What it owes, and who funded it · $18.1bn
Short-term liabilities $2.9bnLonger-term liabilities $3.6bnShareholders' equity $11.7bn
  • Short-term assets cover short-term liabilities $6.5bn of assets due within a year against $2.9bn of liabilities due within a year.
  • Short-term assets cover long-term liabilities $6.5bn short-term assets against $3.6bn of longer-dated liabilities.
  • More cash than debt $3.5bn of cash against $2.5bn of debt.
  • Debt below 40% of shareholders' equity Debt is 21% of equity.
  • Debt burden no higher than five years ago Debt to equity moved from 7% to 21% over five years.
  • A year's operating cash flow covers at least 20% of debt $3.2bn of operating cash flow against $2.5bn of debt.
  • Operating profit covers interest at least five times over Operating income of $1.4bn against $24m of interest.

From United Microelectronics Corp's latest balance sheet as filed. Checks are fixed, documented rules (methodology), counted only where the company reports the figures — a dot means the filing doesn't break the item out. Descriptions of reported data, not advice.

Moat

Not assessed: fewer than five years of comparable figures in the filings. AI disruption exposure for this industry: Low.

A rules-based reading of reported figures, not a forecast and not investment advice. How the score is built: methodology.

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Figures from United Microelectronics Corp's SEC filings (10-K and 10-Q), retrieved November 1, 2026. How we read and check them: methodology and data sources. Not investment advice. Back to United Microelectronics Corp.