Compare Aon PLC (AON) vs Quest Diagnostics Inc (DGX) Price & Performance
Price performance (Past 24H)
Key statistics
Key statistics
Aon PLC vs Quest Diagnostics Inc — how do they compare? Aon PLC trades at $352.39 (market cap $75.61B), while Quest Diagnostics Inc trades at $237.26 (market cap $26.21B). The key difference: Aon PLC is far larger — about 2.9× Quest Diagnostics Inc's market cap, and Quest Diagnostics Inc pays the higher dividend (1.45%). Which is the better fit depends on your goals.
| AON | DGX | |
|---|---|---|
Market Cap | $75.61B | $26.21B |
Sector | Financials | Health |
52-Week High | $381.26 | $238.50 |
52-Week Low | $308.22 | $173.49 |
Enterprise Value | $90.22B | $31.97B |
Dividend Yield | 0.92% | 1.45% |
Aura AI Summary
Signals from Pluang's Aura AI — not financial advice
Aura AI Summary
Signals from Pluang's Aura AI — not financial advice
AON trades at $351.56, down 1.52% on the day, with a neutral technical signal and strong fundamentals including a 22.27% net income margin and consistent earnings beats. The stock shows robust profitability with ROE of 44.88% and revenue growth to $17.18B in 2025, though valuation multiples like a P/E of 19.65 and P/S of 4.37 reflect premium pricing. Recent news highlights institutional buying and Q2 2026 earnings beat, with organic revenue growth of 5% supporting positive sentiment.
Outlook remains favorable given earnings momentum and analyst consensus price target of $410, but risks include high valuation sensitivity and debt levels. The stock offers growth exposure with upside potential, balanced by execution risks in a competitive insurance brokerage sector.
Quest Diagnostics (DGX) trades at $237.24, down 0.16% on the day, with a bullish technical signal from moving averages. The company reported strong Q2 2026 earnings, beating estimates with EPS of $3.12 and raising its full-year outlook, driven by robust testing demand. Revenue grew to $11.04B in 2025, with net income of $992M, though margins face pressure from lower-margin deals and rising costs.
The outlook is positive due to raised guidance and AI integration enhancing efficiency, but risks include debt levels and margin compression. Analysts maintain a cautious buy stance with a $249.50 price target, indicating modest upside potential from current levels amid competitive and cost challenges.
Returns comparison
Trailing returns across standard periods
Returns comparison
Trailing returns across standard periods
Top news
Latest headlines on both assets
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Latest headlines on both assets
About Aon PLC
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 →About Quest Diagnostics Inc
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 →
