Price movement over the last 24 hours
Aehr Test Systems vs United Microelectronics Corp — how do they compare? Aehr Test Systems trades at $66.67 (market cap $2.11B), while United Microelectronics Corp trades at $24.82 (market cap $60.80B). The key difference: United Microelectronics Corp is far larger — about 28.8× Aehr Test Systems's market cap, and United Microelectronics Corp pays a 1.73% dividend while Aehr Test Systems pays none. Which is the better fit depends on your goals.
| AEHR | UMC | |
|---|---|---|
Market Cap | $2.11B | $60.80B |
Sector | Technology | Technology |
52-Week High | $116.58 | $28.02 |
52-Week Low | $13.29 | $6.58 |
Enterprise Value | $2.08B | $58.38B |
Dividend Yield | — | 1.73% |
Signals from Pluang's Aura AI — not financial advice
AEHR trades at $72.33, up 3.38% today, with a bullish technical signal driven by oversold RSI readings near 24.5, though moving averages remain bearish. The company reported Q1 2026 EPS of -$0.05, beating expectations, but maintains negative profitability margins and cash flow. Recent news highlights strong order growth from AI and silicon photonics customers, including a follow-on system order announced June 17, 2026.
Outlook is mixed: robust order book and AI sector tailwinds support growth, but high P/S of 46.6 and persistent losses pose valuation risks. Analyst consensus is cautious with 33% buy ratings. Key risks include execution on orders and cash burn.
UMC trades at $23.83, down 2.89% on the day, with a bullish technical signal from moving averages and recent earnings beats. Revenue grew to $237.55 billion in 2025, though net income margin compressed to 16.99%. The company maintains strong cash flow from operations and announced a $0.41 dividend for H2-26, reflecting financial stability amid competitive semiconductor market dynamics.
Outlook remains supported by specialty chip demand and 14nm eHV platform innovation, but valuation multiples like P/E of 41.94 suggest premium pricing. Risks include margin pressure and industry cyclicality, while analyst consensus leans hold with 53.33% neutral ratings, indicating cautious optimism for long-term growth.
Trailing returns across standard periods
Aehr Test Systems provides testing and burn-in solutions for the semiconductor industry. Its systems ensure the reliability of AI processors, data center chips, and electric vehicle components at the wafer and package levels.
Read more on AEHR →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 →