ASE Technology Holding Co Ltd vs United Microelectronics Corp — how do they compare? ASE Technology Holding Co Ltd trades at $39.56 (market cap $85.75B), while United Microelectronics Corp trades at $19.49 (market cap $47.81B). The key difference: ASE Technology Holding Co Ltd is the larger of the two by market cap, and United Microelectronics Corp pays the higher dividend (2.12%). Which is the better fit depends on your goals.
| ASX | UMC | |
|---|---|---|
Market Cap | $85.75B | $47.81B |
Sector | Technology | Technology |
52-Week High | $45.12 | $28.02 |
52-Week Low | $9.63 | $6.58 |
Enterprise Value | $90.15B | $44.93B |
Dividend Yield | 1.08% | 2.12% |
Signals from Pluang's Aura AI — not financial advice
ASE Technology Holding (ASX) trades at $37.59, up 0.53% today, with a bullish technical signal and strong earnings beats in recent quarters. The company reported Q2 2026 EPS of $0.29, exceeding expectations, and announced a $10.5 billion capital expenditure increase for AI-driven semiconductor demand (Reuters, 2026-07-30). Financials show revenue growth to $645.39 billion in 2025 and a net income margin of 8.46%, though valuation ratios like P/E of 47.78 appear elevated.
Outlook is positive due to AI capacity expansion and robust institutional interest, with 80% analyst buy ratings. Risks include high valuation sensitivity and execution challenges from increased capital spending. The stock's momentum is supported by earnings growth, but investors should monitor margin sustainability amid competitive pressures.
UMC trades at $18.79, up 0.37% today, with a bearish technical signal. Recent earnings beats and strong July 2026 sales growth of 18.98% year-over-year highlight operational momentum. The company is expanding capacity in Singapore and Taiwan to meet AI-driven demand, supported by a robust balance sheet with $115.24 billion in cash. However, net income margin has declined from 32.1% in 2022 to 16.99% in 2025, posing a concern.
The outlook is mixed; expansion initiatives and AI tailwinds offer growth potential, but margin compression and a bearish technical stance present risks. Analyst consensus is cautious with 53.33% hold ratings. Key catalysts include Q3 2026 earnings and fab expansion progress, while competitive pressures and macroeconomic volatility remain headwinds.
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Latest headlines on both assets
ASE Technology Holding Co Ltd is a semiconductor assembly and testing firm. The company operates in segments: Packaging, Testing, and Electronic Manufacturing Services. Of these, packaging services contribute the most revenue. It involves packaging bare semiconductors into completed semiconductors with improved electrical and thermal characteristics. The Testing Segment includes front-end engineering testing, wafer probing, and final testing services. In the EMS segment, the company designs manufacture and sells electronic components and telecommunication equipment motherboards. The company is based in Taiwan but garners over half its sales from firms in the United States.
Read more on ASX →Founded in 1980, United Microelectronics is the world's third-largest dedicated chip foundry, with 7% market share in 2021, according to Gartner, after TSMC and GlobalFoundries. UMC's headquarters are in Hsinchu, Taiwan, and it operates 12 fabs in Taiwan, Mainland China, Japan and Singapore, with additional sales offices in Europe, the U.S. and South Korea. UMC features a diverse customer base including Texas Instruments, MediaTek, Qualcomm, Broadcom, Xilinx and Realtek, supplying a wide range of products applied in communications, display, memory, automotive and more. UMC employs about 20,000 people.
Read more on UMC →