Quest Diagnostics Inc vs Vanguard Mega Cap Growth ETF — how do they compare? Quest Diagnostics Inc trades at $237.51 (market cap $26.21B), while Vanguard Mega Cap Growth ETF trades at $90.21. The key difference: Quest Diagnostics Inc pays a 1.45% dividend while Vanguard Mega Cap Growth ETF pays none. Which is the better fit depends on your goals.
| DGX | MGK | |
|---|---|---|
Market Cap | $26.21B | — |
Sector | Health | Broad Market / Factor |
52-Week High | $238.50 | $92.06 |
52-Week Low | $173.49 | $70.70 |
Enterprise Value | $31.97B | — |
Dividend Yield | 1.45% | — |
Signals from Pluang's Aura AI — not financial advice
Quest Diagnostics (DGX) trades at $237.99, up 0.15% on the day, near its 52-week high. The stock shows strong momentum with consecutive earnings beats in 2026, including Q2 EPS of $3.12 versus $2.82 expected. Revenue growth accelerated to $11.04 billion in 2025, with net income margin at 9.19%. Technical indicators signal a bullish trend, while analyst consensus is a $249.50 price target. Recent news highlights AI integration and raised 2026 outlook amid robust testing demand.
The outlook for DGX is positive, driven by earnings momentum, strategic partnerships, and healthcare demand. Investment opportunity lies in sustained growth and dividend yield, but risks include margin pressure from lower-margin deals and high debt levels. Valuation at a P/E of 25.21 requires continued execution to justify upside.
MGK trades at $90.21, down 0.46% on the day, with a bullish technical signal supported by moving averages. The ETF focuses on mega-cap growth stocks with heavy technology concentration and a low 0.05% expense ratio. Recent news highlights institutional buying activity and strong five-year performance compared to peers.
Outlook remains positive given MGK's track record of outperforming the S&P 500, though high RSI readings suggest potential near-term consolidation. Risks include concentration in tech stocks and market volatility, but the ETF's low-cost structure and exposure to market leaders provide long-term growth potential.
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 →MGK is an ETF that seeks to track the performance of the CRSP US Mega Cap Growth Index. It provides a low-cost, diversified exposure to the largest growth companies in the U.S. stock market. The fund is composed of mega-cap stocks that exhibit key growth factors, including high expected long-term earnings growth, high historical sales and earnings growth, and high return on assets. MGK is typically used by investors seeking long-term capital appreciation from market-leading firms.
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