Price movement over the last 24 hours
Aehr Test Systems vs Quest Diagnostics Inc — how do they compare? Aehr Test Systems trades at $66.75 (market cap $2.11B), while Quest Diagnostics Inc trades at $208.11 (market cap $23.51B). The key difference: Quest Diagnostics Inc is far larger — about 11.1× Aehr Test Systems's market cap, and Quest Diagnostics Inc pays a 1.62% dividend while Aehr Test Systems pays none. Which is the better fit depends on your goals.
| AEHR | DGX | |
|---|---|---|
Market Cap | $2.11B | $23.51B |
Sector | Technology | Health |
52-Week High | $116.58 | $216.02 |
52-Week Low | $13.29 | $166.42 |
Enterprise Value | $2.08B | $29.52B |
Dividend Yield | — | 1.62% |
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.
Quest Diagnostics (DGX) trades at $212.38, down 1.55% today but remains near its 52-week high. The stock shows strong fundamental performance with three consecutive quarterly earnings beats and revenue growth to $11.04 billion in 2025. Technical indicators suggest a bullish trend with support at $212 and resistance at $216. Recent positive developments include New York State approval for the Haystack MRD cancer test, expanding market reach.
DGX presents a balanced investment case with solid fundamentals and analyst support, though valuation appears full. The consensus price target of $222.80 offers modest upside. Key risks include healthcare reimbursement pressures and elevated debt levels. Earnings growth and diagnostic service expansion remain primary catalysts for continued performance.
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 →Quest Diagnostics is a leading independent provider of diagnostic testing, information, and services in the U.S. The company generates over 95% of its revenue through clinical testing, anatomic pathology, esoteric testing, and substance abuse testing with specimens collected at its national network of roughly 2,300 patient service centers, as well as multiple doctors offices and hospitals. The firm also runs a much smaller diagnostic solutions segment that provides clinical trials testing, risk assessment services, and information technology solutions.
Read more on DGX →