United Microelectronics Corp vs Williams Companies Inc — how do they compare? United Microelectronics Corp trades at $21.15 (market cap $51.00B), while Williams Companies Inc trades at $73.43 (market cap $90.70B). The key difference: Williams Companies Inc is the larger of the two by market cap, and Williams Companies Inc pays the higher dividend (2.83%). Which is the better fit depends on your goals.
| UMC | WMB | |
|---|---|---|
Market Cap | $51.00B | $90.70B |
Sector | Technology | Energy |
52-Week High | $28.02 | $79.40 |
52-Week Low | $6.58 | $56.51 |
Enterprise Value | $48.57B | $120.08B |
Dividend Yield | 2.03% | 2.83% |
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.
Williams Companies (WMB) trades at $73.36, showing minimal daily movement with a slight 0.03% decline. The stock demonstrates strong profitability with 23.4% net income margins and 21.95% ROE, though valuation metrics appear elevated with a P/E of 32.53. Recent developments include a $5.34 billion Blackstone-led investment for power innovation projects and potential $5.5 billion Momentum Midstream acquisition, positioning the company for strategic growth in energy infrastructure.
WMB presents a compelling investment case with strong analyst support (79% buy ratings) and $86 consensus price target representing 17% upside. The company's fee-based midstream model provides revenue stability, while recent strategic investments enhance growth prospects. Key risks include commodity price volatility, execution challenges from major acquisitions, and elevated debt levels at 52% of assets.
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 →