United Microelectronics Corp vs Vistra Corp — how do they compare? United Microelectronics Corp trades at $21.12 (market cap $51.00B), while Vistra Corp trades at $162.36 (market cap $53.27B). The key difference: United Microelectronics Corp and Vistra Corp are close in size by market cap, and United Microelectronics Corp pays the higher dividend (2.03%). Which is the better fit depends on your goals.
| UMC | VST | |
|---|---|---|
Market Cap | $51.00B | $53.27B |
Sector | Technology | Technology |
52-Week High | $28.02 | $217.92 |
52-Week Low | $6.58 | $134.71 |
Enterprise Value | $48.57B | $75.03B |
Dividend Yield | 2.03% | 0.58% |
Signals from Pluang's Aura AI — not financial advice
UMC trades at $21.19, down 0.28% on the day, with a bullish technical signal from oscillators but bearish moving averages. The company reported Q1 2026 EPS of $0.20, beating expectations, and maintains a net income margin of 20.25%. Recent news highlights mass production of silicon photonics ICs and strong June 2026 sales growth of 22.85% year-over-year.
Outlook is supported by earnings beats and specialty technology demand, but risks include valuation above sector peers and competitive pressures. Analysts are mixed with 26.67% buy ratings, suggesting cautious optimism amid solid execution.
Vistra Corp (VST) trades at $157.99, up 1.64% with strong institutional support and bullish technical signals. The stock shows robust fundamentals with 74.92% ROE and 11.52% net margin, though recent earnings were mixed with Q1 2026 beating expectations but Q3 and Q4 2025 missing. Analyst consensus remains overwhelmingly positive with 91% buy ratings and a $253 price target, representing 60% upside potential. Recent news highlights Vistra's positioning in the AI power infrastructure boom and long-term power purchase agreements with major tech companies.
Vistra presents significant growth potential driven by AI infrastructure demand and nuclear energy expansion, but faces risks from power price volatility and high debt levels. The company's diversified utility operations and strategic PPAs provide revenue stability, while technical indicators suggest continued upward momentum with key resistance at $159-$162. Investors should weigh the strong analyst support against execution risks in capital-intensive energy projects.
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 →