United Microelectronics (UMC)
United Microelectronics (UMC) closed at $24.31 on Sep 25, 2026, up 213.3% year to date, for a market capitalisation of $61.2B. Revenue of TWD 237.6B over its last published fiscal year, up 2.3% year on year, with a 29.0% gross margin and a 18.5% operating margin. Filed with the SEC, as of Dec 31, 2025. 26 institutional holders named from SEC filings, together declaring between 5.8% and 6.8% of the shares outstanding, as of Jun 30, 2026. United Microelectronics is one of the AI and semiconductor companies tracked on Silicon Floor, in the chips & compute segment, with live prices, SEC filings, financial statements and institutional ownership.
- Last close
- $24.31 (2026-09-25)
- Year to date
- +213.3%
- 52-week range
- $6.88 – $28.59
- Market capitalisation
- $61.2B
- Revenue (fiscal year)
- TWD 237.6B
- Revenue growth
- +2.3%
- Gross margin
- 29.0%
- Operating margin
- 18.5%
- Price / sales
- 8.1
- EV / revenue
- 7.6
- Ratios converted at
- 31.37 TWD per US$1, the rate the company published for its Dec 31, 2025 figures
- Figures as of
- 2025-12-31
- Named institutional holders
- 26
- Declared ownership
- 5.8% – 6.8%
Filed figures, quarter by quarter
- United Microelectronics revenue by quarter, with the filing behind each
- United Microelectronics gross profit by quarter, with the filing behind each
- United Microelectronics operating income by quarter, with the filing behind each
- United Microelectronics net income by quarter, with the filing behind each