Compare Quest Diagnostics Inc (DGX) vs Williams Companies Inc (WMB) Price & Performance
Price performance (Past 24H)
Key statistics
Key statistics
Quest Diagnostics Inc vs Williams Companies Inc — how do they compare? Quest Diagnostics Inc trades at $237.49 (market cap $26.21B), while Williams Companies Inc trades at $73.66 (market cap $88.45B). The key difference: Williams Companies Inc is far larger — about 3.4× Quest Diagnostics Inc's market cap, and Williams Companies Inc pays the higher dividend (2.9%). Which is the better fit depends on your goals.
| DGX | WMB | |
|---|---|---|
Market Cap | $26.21B | $88.45B |
Sector | Health | Energy |
52-Week High | $238.50 | $79.40 |
52-Week Low | $173.49 | $56.51 |
Enterprise Value | $31.97B | $119.07B |
Dividend Yield | 1.45% | 2.9% |
Aura AI Summary
Signals from Pluang's Aura AI — not financial advice
Aura AI Summary
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.
WMB trades at $73.72, up 2.6% today, with a bullish technical signal and strong analyst support. The company reported mixed quarterly earnings but raised full-year EBITDA guidance to $8.4 billion following its $5.5 billion acquisition of Momentum Midstream, enhancing its Gulf Coast footprint. Fundamentals show robust profitability with a 25.18% net income margin and 24.02% ROE, though valuation multiples like a P/E of 28.81 appear elevated.
The outlook is positive, driven by growth initiatives and stable cash flows, but risks include execution of the large acquisition and sensitivity to energy demand. With a consensus price target of $87.14 implying 18% upside, the stock offers growth potential tempered by integration challenges and debt levels.
Returns comparison
Trailing returns across standard periods
Returns comparison
Trailing returns across standard periods
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 →About Williams Companies Inc
Williams is a midstream energy company that owns and operates the large Transco and Northwest pipeline systems and associated natural gas gathering, processing, and storage assets. In August 2018, the firm acquired the remaining 26% ownership of its limited partner, Williams Partners.
Read more on WMB →
