United Microelectronics Corp (UMC) stock
UMCNYSESemiconductors & Related DevicesFiscal year ends December 31
Financials through fiscal 2025, year ended Dec 31, 2025Score 9/30
$15.40−0.36 (-2.28%)
Close on Nov 13, 2026Market cap $38.77BP/E 30.9Yield –
United Microelectronics statistics
97 measures from SEC filings and the closing price. Hover a name for the formula; the last column is the median of companies in the same industry group.
Important dates
- Next earnings
- –
- Last ex-dividend date
- Jul 8, 2026
- Fundamentals through
- Dec 31, 2025
- Share price as of
- –
Valuation ratiosIndustry
- P/TBV Ratio
- 3.48
- –
- P/OCF Ratio
- 12.75
- –
Enterprise valuationIndustry
- EV / Sales
- 5.01
- –
- EV / EBIT
- 27.09
- –
- EV / FCF
- 22.85
- –
Share statisticsIndustry
- Shares Change (YoY)
- -0.15%
- 0.00%
- Float
- 12.44B
- 3.32B
- Shares Held by Insiders
- 1.20%
- 2.01%
- Shares Held by Institutions
- 1.43%
- 2.97%
Short sellingIndustry
- Short Interest
- 34M
- –
- Short Interest Change
- 11.6%
- –
- Days to Cover
- 2.80
- –
Stock price statisticsIndustry
- Price Change (1 Week)
- 11.2%
- –
- Price Change (1 Month)
- -26.4%
- –
- Price Change (3 Months)
- -21.1%
- –
- Price Change (6 Months)
- -10.5%
- –
- Price Change (YTD)
- 95.9%
- –
- Price Change (1 Year)
- 112.7%
- –
- Price Change (3 Years)
- 100.8%
- –
- Price Change (5 Years)
- 36.3%
- –
- Price Change (10 Years)
- 755.6%
- –
- Average Volume (10 Days)
- 16M
- –
- Average Volume (20 Days)
- 14M
- –
- Average Volume (90 Days)
- 13M
- –
- Relative Volume
- 0.69
- –
- Relative Strength Index (14)
- 35.7
- –
- Volatility (1 Year)
- 68.0%
- –
- Beta (5 Years)
- 0.93
- –
MarginsIndustry
- Pretax Margin
- 20.2%
- 7.95%
- EBITDA Margin
- 18.5%
- 18.5%
- FCF Margin
- 21.9%
- 0.61%
Returns on capitalIndustry
- Return on Equity (ROE)
- 11.0%
- –
- Return on Assets (ROA)
- 7.16%
- –
- Return on Invested Capital (ROIC)
- 13.1%
- –
- Return on Capital Employed (ROCE)
- 9.20%
- 8.02%
Financial positionIndustry
- Current Ratio
- 2.29
- 2.29
- Quick Ratio
- 1.58
- 1.58
- Debt / Equity
- 0.08
- –
- Debt / EBITDA
- 0.63
- –
- Debt / FCF
- 0.53
- –
- Net Debt / EBITDA
- -1.89
- –
- Interest Coverage
- 27.43
- 6.85
GrowthIndustry
- Revenue Growth (YoY)
- 2.26%
- 8.39%
- Net Income Growth (YoY)
- -17.3%
- –
- EPS Growth (YoY)
- -17.0%
- –
- FCF Growth (YoY)
- 878.1%
- –
- Revenue Growth (3Y CAGR)
- -5.19%
- -1.28%
- Revenue Growth (5Y CAGR)
- 6.08%
- –
- EPS Growth (3Y CAGR)
- -23.0%
- –
- EPS Growth (5Y CAGR)
- 11.8%
- –
EfficiencyIndustry
- Asset Turnover
- 0.42
- 0.52
- Inventory Turnover
- 4.62
- 7.05
- Revenue Per Employee
- 12.44M TWD
- 36.76M TWD
- Profits Per Employee
- 2.11M TWD
- –
- Employee Count
- 19,097
- 14,258
- WACC
- 9.64%
- –
Income statement (TTM)Industry
- Pretax Income
- 48.08B TWD
- 48.08B TWD
Balance sheetIndustry
- Net Cash (Debt)
- 83.06B TWD
- -73.63M TWD
- Net Cash Per Share
- 6.60 TWD
- -0.87 TWD
- Equity (Book Value)
- 365.83B TWD
- –
- Book Value Per Share
- 29.06 TWD
- –
- Tangible Book Value
- 365.83B TWD
- –
- Working Capital
- 115.26B TWD
- 65.32B TWD
Cash flow (TTM)Industry
- Capital Expenditures
- -47.74B TWD
- -47.74B TWD
- FCF Per Share
- 4.14 TWD
- 0.21 TWD
Dividends and yieldsIndustry
- Earnings Yield
- 3.17%
- –
- FCF Yield
- 4.09%
- –
Taxes and interestIndustry
- Interest Expense
- 1.60B TWD
- 1.60B TWD
- Income Tax
- 7.90B TWD
- 7.90B TWD
- Effective Tax Rate
- 16.4%
- –
Scores and fair valueIndustry
- Graham Number
- 46.24 TWD
- –
- Graham Upside
- -54.3%
- –
- Altman Z-Score
- 4.71
- –
- Piotroski F-Score
- 5
- –
- Lynch Fair Value
- 38.67 TWD
- –
- Lynch Upside
- -61.8%
- –
Total return vs. the S&P 500
Price change plus reinvested dividends, to the close on Nov 13, 2026. The S&P 500 is measured by the SPY fund.
| Period | UMC | S&P 500 | Difference | UMC per year | S&P 500 per year |
|---|---|---|---|---|---|
| 1 month | -31.2% | -3.0% | −28.2 pts | ||
| 3 months | -20.5% | -2.8% | −17.8 pts | ||
| Year to date | +99.4% | +11.5% | +87.9 pts | ||
| 1 year | +120.4% | +13.5% | +106.9 pts | ||
| 3 years | +134.2% | +77.7% | +56.5 pts | +32.8% | +21.1% |
| 5 years | +78.8% | +72.6% | +6.2 pts | +12.3% | +11.5% |
| 10 years | +1280.4% | +308.2% | +972.3 pts | +30.0% | +15.1% |
Short interest
Shares sold short and not yet covered, reported by brokers to FINRA twice a month. Latest settlement date Oct 30, 2026.
34M UMC shares were sold short on Oct 30, 2026, up 11.6% from the previous report. At recent volumes it would take 2.8 days to buy them back. Over the last 20 sessions, 48.1% of the volume reported to FINRA was short selling.
| Settlement date | Shares short | Change | Avg. daily volume | Days to cover |
|---|---|---|---|---|
| Oct 30, 2026 | 33,692,533 | +11.6% | 12,039,310 | 2.8 |
| Oct 15, 2026 | 30,184,605 | +8.6% | 12,096,580 | 2.5 |
| Sep 30, 2026 | 27,794,121 | -27.6% | 11,615,278 | 2.4 |
| Sep 15, 2026 | 38,400,261 | +14.1% | 10,796,618 | 3.6 |
| Aug 31, 2026 | 33,668,171 | +13.4% | 11,387,541 | 3.0 |
| Aug 14, 2026 | 29,695,086 | -13.2% | 11,518,388 | 2.6 |
| Jul 31, 2026 | 34,193,634 | +66.7% | 17,966,337 | 1.9 |
| Jul 15, 2026 | 20,511,587 | -21.6% | 16,495,511 | 1.2 |
| Jun 30, 2026 | 26,177,159 | +3.3% | 20,022,281 | 1.3 |
| Jun 15, 2026 | 25,331,010 | -2.9% | 18,766,216 | 1.4 |
| May 29, 2026 | 26,098,399 | -3.0% | 17,881,650 | 1.5 |
| May 15, 2026 | 26,916,938 | +0.9% | 16,420,260 | 1.6 |
Ratios use trailing-twelve-month results and the latest balance sheet. How we calculate.
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