Compare Arm Holdings plc (ARM) vs United Microelectronics Corp (UMC) Price & Performance
Price performance (Past 24H)
Key statistics
Key statistics
Arm Holdings plc vs United Microelectronics Corp — how do they compare? Arm Holdings plc trades at $271.8 (market cap $286.06B), while United Microelectronics Corp trades at $19.39 (market cap $47.80B). The key difference: Arm Holdings plc is far larger — about 6× United Microelectronics Corp's market cap, and United Microelectronics Corp pays a 2.13% dividend while Arm Holdings plc pays none. Which is the better fit depends on your goals.
| ARM | UMC | |
|---|---|---|
Market Cap | $286.06B | $47.80B |
Sector | Technology | Technology |
52-Week High | $439.46 | $28.02 |
52-Week Low | $104.55 | $6.58 |
Enterprise Value | $282.64B | $44.92B |
Dividend Yield | — | 2.13% |
Aura AI Summary
Signals from Pluang's Aura AI — not financial advice
Aura AI Summary
Signals from Pluang's Aura AI — not financial advice
ARM stock trades at $282.57, down 1.43% over 24 hours, with a bullish technical outlook supported by moving averages and key support at $272. The company reported strong earnings beats in recent quarters, with Q2 2026 EPS of $0.45 beating the $0.40 estimate. Revenue grew to $4.01B in 2025, with a net income margin of 20.25%, though valuation multiples remain elevated with a P/E of 273.32.
The outlook is positive due to AI-driven growth in licensing and royalties, with management targeting $25B revenue by FY31. However, risks include stretched valuation, smartphone market headwinds, and execution challenges. Analyst consensus is bullish with a $329.80 price target, suggesting 17% upside from current levels.
UMC trades at $18.72, down 2.5% today, amid a bearish technical signal with key resistance at $19. The company reported strong Q2 2026 earnings, beating EPS estimates with $0.54 vs. $0.16 expected, and announced fab expansions in Singapore and Taiwan to meet AI-driven demand. Revenue growth is projected to rise to $250.7B in 2026, with a net income margin of 32.75%, though profit margins have declined from 2022 peaks. Analyst sentiment is mixed, with 26.7% buy ratings but a majority hold consensus.
The outlook for UMC is cautiously optimistic, driven by AI expansion and solid profitability, but risks include competitive pressures and margin compression. Near-term price action hinges on breaking resistance at $19, with support at $18. Institutional activity shows mixed positioning, reflecting uncertainty over execution amid capital expenditure increases.
Returns comparison
Trailing returns across standard periods
Returns comparison
Trailing returns across standard periods
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Latest headlines on both assets
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About Arm Holdings plc
Arm Holdings designs the architecture for high-performance, energy-efficient processors used in nearly all smartphones and millions of other devices. Its intellectual property powers global computing from mobile to AI.
Read more on ARM →About United Microelectronics Corp
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 →
