United Microelectronics Corp vs Williams Companies Inc — how do they compare? United Microelectronics Corp trades at $19.42 (market cap $47.81B), while Williams Companies Inc trades at $73.59 (market cap $88.45B). The key difference: Williams Companies Inc is the larger of the two by market cap, and Williams Companies Inc pays the higher dividend (2.9%). Which is the better fit depends on your goals.
| UMC | WMB | |
|---|---|---|
Market Cap | $47.81B | $88.45B |
Sector | Technology | Energy |
52-Week High | $28.02 | $79.40 |
52-Week Low | $6.58 | $56.51 |
Enterprise Value | $44.93B | $119.07B |
Dividend Yield | 2.12% | 2.9% |
Signals from Pluang's Aura AI — not financial advice
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.
Williams Companies (WMB) trades at $71.85, up 2.06% today, with a neutral technical signal and mixed earnings history. The company reported Q2 2026 EPS of $0.50, slightly missing estimates, but raised full-year EBITDA guidance. Recent news highlights the $5.5 billion acquisition of Momentum Midstream, enhancing its Gulf Coast presence and supporting long-term growth targets. Financials show strong profitability with a 25.18% net income margin and robust cash flow from operations of $5.90 billion in 2025.
Outlook remains positive with analyst consensus favoring Buy ratings (79.41%) and a $87.14 price target, though risks include execution of acquisitions and debt levels. The stock offers a dividend yield supported by stable cash flows, positioning it for growth in energy infrastructure demand.
Trailing returns across standard periods
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 →Williams is a midstream energy company that owns and operates the large Transco and Northwest pipeline systems and associated natural gas gathering, processing, and storage assets. In August 2018, the firm acquired the remaining 26% ownership of its limited partner, Williams Partners.
Read more on WMB →