MasTec Inc vs United Microelectronics Corp — how do they compare? MasTec Inc trades at $348.86 (market cap $26.60B), while United Microelectronics Corp trades at $21.15 (market cap $51.00B). The key difference: United Microelectronics Corp is the larger of the two by market cap, and United Microelectronics Corp pays a 2.03% dividend while MasTec Inc pays none. Which is the better fit depends on your goals.
| MTZ | UMC | |
|---|---|---|
Market Cap | $26.60B | $51.00B |
Sector | Technology | Technology |
52-Week High | $437.51 | $28.02 |
52-Week Low | $172.51 | $6.58 |
Enterprise Value | $29.34B | $48.57B |
Dividend Yield | — | 2.03% |
Signals from Pluang's Aura AI — not financial advice
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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.
Trailing returns across standard periods
MasTec, Inc. is a leading infrastructure construction company operating mainly in North America. The company's services cover a diverse range of end-markets, including communications (building fiber and wireless infrastructure), oil & gas, electric power (transmission, distribution, and clean energy), and industrial projects. MTZ provides critical engineering, procurement, and construction (EPC) services that support the expansion and maintenance of essential infrastructure across the continent.
Read more on MTZ →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 →