United Microelectronics Corp vs Vistra Corp — how do they compare? United Microelectronics Corp trades at $19.3 (market cap $47.81B), while Vistra Corp trades at $146.69 (market cap $48.64B). The key difference: United Microelectronics Corp and Vistra Corp are close in size by market cap, and United Microelectronics Corp pays the higher dividend (2.12%). Which is the better fit depends on your goals.
| UMC | VST | |
|---|---|---|
Market Cap | $47.81B | $48.64B |
Sector | Technology | Technology |
52-Week High | $28.02 | $217.92 |
52-Week Low | $6.58 | $134.71 |
Enterprise Value | $44.93B | $70.58B |
Dividend Yield | 2.12% | 0.63% |
Signals from Pluang's Aura AI — not financial advice
UMC trades at $19.50, up 3.78% today, with neutral technical signals and strong fundamental performance. The company has consistently beaten earnings estimates in recent quarters, with Q2 2026 EPS of $0.54 significantly exceeding the $0.16 expectation. Recent announcements include fab expansions in Singapore and Taiwan to meet AI-driven demand, supported by growing silicon photonics production. Valuation metrics show a P/E of 18.55 and P/S of 6.02, with robust profitability margins including 32.75% net income margin.
Outlook remains positive with projected revenue growth to $250.7B in 2026 and net income rebound to $82.1B. Key risks include semiconductor cycle volatility and execution challenges from capacity expansion. Analyst consensus shows mixed sentiment with 26.7% buy ratings versus 20% sell recommendations, suggesting cautious optimism amid expansion initiatives.
Vistra (VST) trades at $146.68, up 2.67% today, with a bearish technical signal from moving averages but strong analyst support (90.9% buy ratings). Recent Q2 2026 earnings showed a beat on EPS ($2.87 actual vs. $1.32 expected) but a revenue miss, while the company reaffirmed full-year guidance amid growing data center power demand. The stock's valuation includes a P/E of 24.44 and a high ROE of 75.73%, though net cash flow was negative in 2025.
The outlook is positive due to robust EBITDA growth and strategic positioning in the AI power sector, with a consensus price target of $239.75 implying significant upside. Key risks include ERCOT market volatility, hedging losses, and high debt levels, requiring monitoring of execution on data center deals and cost controls.
Trailing returns across standard periods
Latest headlines on both assets
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 →Vistra is a leading integrated retail electricity and power generation company that serves as a critical infrastructure provider for the digital economy. It operates a diversified portfolio of zero-carbon nuclear and renewable assets alongside a massive, flexible natural gas fleet, positioning it as an indispensable partner for energy-intensive AI data centers and industrial electrification.
Read more on VST →