Diageo plc vs Quest Diagnostics Inc — how do they compare? Diageo plc trades at $81.01 (market cap $45.41B), while Quest Diagnostics Inc trades at $205.45 (market cap $22.80B). The key difference: Diageo plc is the larger of the two by market cap, and Diageo plc pays the higher dividend (4.02%). Which is the better fit depends on your goals.
| DEO | DGX | |
|---|---|---|
Market Cap | $45.41B | $22.80B |
Sector | Technology | Health |
52-Week High | $115.33 | $216.02 |
52-Week Low | $72.47 | $166.42 |
Enterprise Value | $66.23B | $28.82B |
Dividend Yield | 4.02% | 1.67% |
Signals from Pluang's Aura AI — not financial advice
Diageo (DEO) trades at $82.50, up 0.57% today, with a bullish technical trend and strong profitability metrics including a 12.19% net margin and 22.29% ROE. Recent earnings show mixed results with a Q4 2025 beat but a Q2 2025 miss, while analyst sentiment is positive with 49% buy ratings. The stock faces headwinds from weak U.S. spirits demand and promotional pressures, as noted in recent Deutsche Bank and UBS reports from July 2026.
The outlook hinges on management's strategy reset in August 2026 to address U.S. volume declines and margin pressures. Investment appeal lies in its discounted valuation relative to historical multiples and dividend yield, but risks include sustained consumer moderation trends and execution challenges in key markets.
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.
Trailing returns across standard periods
Diageo is a global leader in beverage alcohol with an outstanding collection of brands including Johnnie Walker, Smirnoff, and Guinness. It operates a vast portfolio of spirits and beers across more than 180 countries.
Read more on DEO →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 →