Compare Quest Diagnostics Inc (DGX) vs Quanta Services Inc (PWR) Price & Performance
Price performance (Past 24H)
Key statistics
Key statistics
Quest Diagnostics Inc vs Quanta Services Inc — how do they compare? Quest Diagnostics Inc trades at $203.96 (market cap $22.80B), while Quanta Services Inc trades at $652.31 (market cap $99.18B). The key difference: Quanta Services Inc is far larger — about 4.3× Quest Diagnostics Inc's market cap, and Quest Diagnostics Inc pays the higher dividend (1.67%). Which is the better fit depends on your goals.
| DGX | PWR | |
|---|---|---|
Market Cap | $22.80B | $99.18B |
Sector | Health | Industrials |
52-Week High | $216.02 | $785.24 |
52-Week Low | $166.42 | $372.50 |
Enterprise Value | $28.82B | $105.14B |
Dividend Yield | 1.67% | 0.07% |
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 $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.
Quanta Services (PWR) trades at $646.70, down 1.8% with a bearish technical signal despite strong fundamentals. The company has consistently beaten earnings estimates for three consecutive quarters, with Q2 2026 results pending. Revenue growth remains robust, climbing from $17.1B in 2022 to $28.5B in 2025, though net margins are thin at 3.67%. Analyst consensus is strongly bullish with a $836.80 price target, representing 29% upside potential from current levels.
PWR offers exposure to infrastructure spending tailwinds from AI data centers and grid modernization, but faces valuation concerns with a P/E of 88.7. The stock's premium multiple requires flawless execution amid aggressive capital expenditure plans. Near-term technical weakness contrasts with strong institutional support and positive earnings momentum.
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 Quanta Services Inc
Quanta Services is a leading provider of specialty contracting services, delivering comprehensive infrastructure solutions for the electric and gas utility, communications, pipeline, and energy industries in the United States, Canada, and Australia. Quanta reports its results under two reportable segments: electric power infrastructure solutions and underground utility and infrastructure solutions. In October 2021, the company completed the acquisition of Blattner, a provider of comprehensive engineering, procurement, and construction solutions to customers in the renewable energy industry.
Read more on PWR →
