Price movement over the last 24 hours
Aon PLC vs Quest Diagnostics Inc — how do they compare? Aon PLC trades at $356.91 (market cap $76.23B), while Quest Diagnostics Inc trades at $207.44 (market cap $22.96B). The key difference: Aon PLC is far larger — about 3.3× Quest Diagnostics Inc's market cap, and Quest Diagnostics Inc pays the higher dividend (1.66%). Which is the better fit depends on your goals.
| AON | DGX | |
|---|---|---|
Market Cap | $76.23B | $22.96B |
Sector | Financials | Health |
52-Week High | $375.27 | $216.02 |
52-Week Low | $308.22 | $166.42 |
Enterprise Value | $90.29B | $28.98B |
Dividend Yield | 0.92% | 1.66% |
Signals from Pluang's Aura AI — not financial advice
AON trades at $356.94, up 0.39% with a bullish technical outlook supported by moving averages. The company demonstrates strong fundamentals with Q1 2026 EPS of $6.48 beating expectations and revenue growth from $17.18B in 2025 to projected $17.5B in 2026. Net income margin improved to 22.54% with robust ROE of 46.82%. Recent news highlights dividend declarations and upcoming Q2 earnings.
AON presents a compelling investment case with consistent earnings beats, strong profitability metrics, and analyst consensus target of $399.67 offering 12% upside. Risks include elevated valuation multiples and debt levels, while institutional sentiment remains positive with 50% buy ratings. The stock's technical strength and fundamental growth support continued upward momentum.
Quest Diagnostics (DGX) trades at $207.44, down 0.29% today, with a bullish technical signal and consistent earnings beats in recent quarters. The company reported $11.04B revenue in 2025 with a 9.08% net margin, supported by strong cash flow from operations of $1.89B. Recent news highlights expansion of oncology testing services, including New York State approval for Haystack MRD, enhancing its diagnostic portfolio.
DGX offers steady growth with a consensus price target of $226, implying 9% upside. Risks include rising debt levels and healthcare policy uncertainties, but analyst sentiment leans positive with 38% buy ratings. The stock's valuation at a P/E of 22.92 appears reasonable given its profitability and market position.
Trailing returns across standard periods
Latest headlines on both assets
Aon is a leading global provider of insurance and reinsurance brokerage and human resource solutions. Its operations are tilted toward its brokerage operations. Headquartered in London, Aon has about 50,000 employees and operations in 120 countries around the world.
Read more on AON →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 →