Aehr Test Systems vs First Solar, Inc. — how do they compare? Aehr Test Systems trades at $125.46 (market cap $4.21B), while First Solar, Inc. trades at $222.5 (market cap $25.89B). The key difference: First Solar, Inc. is far larger — about 6.1× Aehr Test Systems's market cap, and Aehr Test Systems is trading nearer its 52-week high, First Solar, Inc. nearer its low. Which is the better fit depends on your goals.
| AEHR | FSLR | |
|---|---|---|
Market Cap | $4.21B | $25.89B |
Sector | Technology | Technology |
52-Week High | $129.23 | $318.30 |
52-Week Low | $17.38 | $180.05 |
Enterprise Value | $4.11B | $24.36B |
Signals from Pluang's Aura AI — not financial advice
Aehr Test Systems (AEHR) trades at $129.23, up 21.69% in the last 24 hours, reflecting strong momentum. The stock is technically bullish, trading near resistance at $129, with a high RSI suggesting potential overbought conditions. Fundamentally, the company reported a net loss of $3.91 million for 2025, but has beaten EPS estimates for three consecutive quarters. Recent news highlights a $22 million follow-on order for AI processor wafer-level burn-in systems, signaling robust demand in high-growth sectors.
The outlook is supported by record bookings and a strategic pivot to AI infrastructure, though high valuation multiples and insider selling pose risks. Revenue growth guidance of 160-200% for FY27 offers significant upside potential, but investor caution is warranted due to customer concentration and current unprofitability.
First Solar (FSLR) trades at $228.27, down 4.62% on the day, amid mixed signals. The stock shows a bullish technical trend with strong moving averages, though RSI levels suggest potential overbought conditions. Fundamentally, the company reported robust revenue growth to $5.22B in 2025, with a net income margin of 29.27%, while recent earnings beat expectations in Q1 and Q2 2026. However, multiple class-action lawsuits filed in August 2026 create near-term legal overhang.
The outlook remains positive given analyst consensus favoring a buy rating with a $282.07 price target, implying significant upside. Key risks include legal proceedings and competitive pressures in the solar sector. Earnings growth and operational cash flow strength support long-term value, but investors should weigh legal uncertainties against fundamental strengths.
Trailing returns across standard periods
Latest headlines on both assets
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 →First Solar designs and manufactures solar photovoltaic panels, modules, and systems for use in utility-scale development projects. The company's solar modules use cadmium telluride to convert sunlight into electricity. This is commonly called thin-film technology. First Solar is the world's largest thin-film solar module manufacturer. It has production lines in Vietnam, Malaysia, the United States, and a new factory under construction in India.
Read more on FSLR →