Quest Diagnostics Inc vs Southern Copper Corp — how do they compare? Quest Diagnostics Inc trades at $237.62 (market cap $26.21B), while Southern Copper Corp trades at $193.42 (market cap $164.21B). The key difference: Southern Copper Corp is far larger — about 6.3× Quest Diagnostics Inc's market cap, and Southern Copper Corp pays the higher dividend (2.26%). Which is the better fit depends on your goals.
| DGX | SCCO | |
|---|---|---|
Market Cap | $26.21B | $164.21B |
Sector | Health | Basic Materials |
52-Week High | $238.50 | $218.85 |
52-Week Low | $173.49 | $93.70 |
Enterprise Value | $31.97B | $165.50B |
Dividend Yield | 1.45% | 2.26% |
Signals from Pluang's Aura AI — not financial advice
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.
Southern Copper (SCCO) trades at $193.14, down 3.48% on the day, amid a broader copper price pullback. The stock exhibits strong fundamentals with revenue growth from $13.42B in 2025 to a projected $15.8B in 2026 and robust profitability margins, including a net income margin of 35.87%. Recent quarters have consistently beaten EPS estimates, and technical indicators show a bullish trend with key support at $191. However, the stock trades at a premium valuation with a P/E of 29.18, above the analyst consensus price target of $153.64.
The outlook for SCCO is mixed; strong earnings growth and exposure to copper demand from AI and data centers present upside, but high valuation and reliance on volatile metal prices pose risks. Analyst sentiment is cautious with only 10.34% buy ratings, suggesting limited near-term upside from current levels despite solid operational performance.
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 →Southern Copper Corp is an integrated producer of copper and other minerals and operates the mining, smelting, and refining facilities in Peru and Mexico. Its production includes copper, molybdenum, zinc, and silver. The company operates through the following segments: Peruvian operations, Mexican open-pit operations, and Mexican underground mining operations. Southern Copper generates the majority of its revenue from the sale of copper and the rest from the sale of non-copper products, such as molybdenum, silver, zinc, lead, and gold. Its geographical segments are The Americas, Europe, and Asia.
Read more on SCCO →