United Microelectronics Corporation
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About the company
United Microelectronics Corporation (UMC) operates as a specialized semiconductor wafer foundry, extending its services globally with operations across Taiwan, Singapore, China, Hong Kong, Japan, the United States, and Europe. The company offers a comprehensive range of solutions, from initial circuit blueprinting and mask generation to wafer manufacturing, final assembly, and rigorous testing. UMC's customer base consists of both integrated device manufacturers and companies focused solely on chip design.
- CEO
- Jason S. Wang
- IPO
- 2000
- Employees
- 20,000
- HQ
- Hsinchu City, TW
Price Chart
- Market Cap
- $53.95B
- P/E
- 33.28
- P/S
- 6.97
- P/B
- 4.10
- EV/EBITDA
- 13.78
- Div Yield
- 2.13%
- Gross Margin
- 29.61%
- Op Margin
- 18.02%
- Net Margin
- 20.82%
- ROE
- 13.50%
- ROIC
- 7.25%
- Revenue
- $237.55B · 2.26%
- Net Income
- $41.72B · -11.64%
- EPS
- $16.70 · -12.11%
- Op Income
- $43.95B
- FCF YoY
- 883.48%
- 52W High
- $23.69
- 52W Low
- $6.56
- 50D MA
- $15.42
- 200D MA
- $10.14
- Beta
- 1.59
- Avg Volume
- 13.97M
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Recent insider transactions
Who's buying, who's selling, and how much.
| Date | Insider | Type | Shares |
|---|---|---|---|
| May 1, 26 | TAN WEN YI | other | 0 |
| May 1, 26 | LU CHIA-AO | other | 0 |
| Apr 29, 26 | LIAO CHING YU | other | 0 |
| Apr 29, 26 | CHEN JIN-SHUANG | other | 0 |
| Apr 29, 26 | KUO LIN-WU | other | 0 |
| Apr 29, 26 | LIN MING-YU | other | 0 |
| Apr 29, 26 | LIN MING-YU | other | 0 |
| Apr 29, 26 | HSU SHU-FEN | other | 0 |
| Apr 29, 26 | HSU SHU-FEN | other | 0 |
| Apr 29, 26 | LIU SHIH-WEI | other | 0 |
Our UMC coverage
Recent articles, reports, and earnings notes.

United Microelectronics (UMC): 22nm Mix Drives the Case
UMC is a profitable mature-node foundry with improving 22nm/28nm mix, but the stock already looks fairly valued. The report rates it a Hold as resilience and optionality are offset by cyclical pricing and limited margin of safety.

United Microelectronics Corporation (UMC) jumps 16% on chip news
United Microelectronics Corporation (UMC) jumps after-hours as investors react to a new 14nm specialty platform, stronger recent sales, and share buyback support. The move pushes the stock to fresh highs and highlights growing confidence in UMC’s execution and specialty foundry strategy.

United Microelectronics Corporation (UMC) climbs 10.6% after hours
United Microelectronics Corporation (UMC) climbs sharply after hours as investors react to improving sales trends, firmer mature-node pricing, and stronger sentiment across Taiwan’s semiconductor supply chain. The move brings the stock closer to its 52-week high and highlights the market’s growing optimism around utilization and margin recovery.
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