Quest Diagnostics Inc vs DexCom, Inc. — how do they compare? Quest Diagnostics Inc trades at $205.45 (market cap $22.80B), while DexCom, Inc. trades at $76.3 (market cap $28.60B). The key difference: DexCom, Inc. is the larger of the two by market cap, and Quest Diagnostics Inc pays a 1.67% dividend while DexCom, Inc. pays none. Which is the better fit depends on your goals.
| DGX | DXCM | |
|---|---|---|
Market Cap | $22.80B | $28.60B |
Sector | Health | Health |
52-Week High | $216.02 | $89.53 |
52-Week Low | $166.42 | $54.84 |
Enterprise Value | $28.82B | $27.57B |
Dividend Yield | 1.67% | — |
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.
DXCM trades at $76.35, up 1.85% today, with strong technical momentum and bullish moving average signals. The company demonstrates robust fundamentals with 17.93% net income margin and consistent earnings beats. Recent regulatory approvals for G7 15-day CGM in Canada and pediatric clearance for Stelo OTC system highlight growth catalysts. Revenue growth accelerated to $4.66 billion in 2025, up from $4.0 billion in 2024.
DXCM presents a compelling growth story with expanding CGM market access and strong analyst support (80% buy ratings). Key risks include GLP-1 adoption impact on core market and execution of Type 2 non-insulin patient expansion. The stock trades at a premium valuation (P/E 32.76) but offers upside to consensus target of $83.78. Near-term focus on Q2 2026 earnings release July 30.
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 →Dexcom designs and commercializes continuous glucose monitoring systems for diabetics. CGM systems serve as an alternative to the traditional blood glucose meter process, and the company is evolving its CGM systems to include the disposable sensor and the durable receiver.
Read more on DXCM →