Quest Diagnostics Inc vs STMicroelectronics NV — how do they compare? Quest Diagnostics Inc trades at $205.66 (market cap $22.80B), while STMicroelectronics NV trades at $66.44 (market cap $62.56B). The key difference: STMicroelectronics NV is far larger — about 2.7× Quest Diagnostics Inc's market cap, and Quest Diagnostics Inc pays the higher dividend (1.67%). Which is the better fit depends on your goals.
| DGX | STM | |
|---|---|---|
Market Cap | $22.80B | $62.56B |
Sector | Health | Financials |
52-Week High | $216.02 | $79.91 |
52-Week Low | $166.42 | $21.20 |
Enterprise Value | $28.82B | $60.77B |
Dividend Yield | 1.67% | 0.53% |
Signals from Pluang's Aura AI — not financial advice
Quest Diagnostics (DGX) trades at $207.35, showing minimal daily movement with a slight decline of 0.04%. The stock maintains a bullish technical stance with recent earnings beats and analyst consensus pointing to upside potential. Recent developments include New York State approval for Haystack MRD testing and strong momentum across diagnostic channels. Revenue growth accelerated to $11.04 billion in 2025 with consistent profitability margins around 9%.
DGX presents a balanced investment case with 38% analyst buy ratings and a $227.75 price target suggesting 10% upside. The company demonstrates steady revenue growth and operational efficiency, though elevated debt levels and policy risks require monitoring. Second quarter earnings on July 23, 2026, will be crucial for validating current momentum and growth trajectory.
STM trades at $68.47, down 4.18% on the day, reflecting recent earnings volatility with two misses in the last three quarters. The stock exhibits a bearish technical signal, trading below key resistance levels, while fundamentals show declining revenue and compressed profit margins, though cash flow remains positive. Recent news highlights AI partnerships and strategic acquisitions as potential growth catalysts.
The outlook is mixed; analyst consensus is a Buy with a $72.33 price target, but high valuation multiples and weak profitability pose risks. Near-term performance hinges on Q2 2026 earnings beating expectations and AI-driven revenue materializing, while macroeconomic pressures on the semiconductor sector remain a headwind.
Trailing returns across standard periods
Latest headlines on both assets
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 →A merger between Italian firm SGS Microelettronica and the nonmilitary business of Thomson Semiconductors in France formed STMicroelectronics in 1987. STMicro is a leader in a variety of semiconductor products, including analog chips, discrete power semiconductors, microcontrollers, and sensors. STMicro is an especially prominent chip supplier into the industrial and automotive industries.
Read more on STM →