Quest Diagnostics Inc vs iShares Core S&P 500 ETF — how do they compare? Quest Diagnostics Inc trades at $229.97 (market cap $25.48B), while iShares Core S&P 500 ETF trades at $781.9 (market cap $897.20B). The key difference: iShares Core S&P 500 ETF is far larger — about 35.2× Quest Diagnostics Inc's market cap, and Quest Diagnostics Inc pays a 1.49% dividend while iShares Core S&P 500 ETF pays none. Which is the better fit depends on your goals — on Pluang, investors hold Quest Diagnostics Inc for 56 Days and iShares Core S&P 500 ETF for 46 Days on average.
| DGX | IVV | |
|---|---|---|
Market Cap | $25.48B | $897.20B |
Volume | 941,866 | 4,580,672 |
Sector | Health | Broad Market / Factor |
52-Week High | $247.45 | $782.58 |
52-Week Low | $173.49 | $634.93 |
Typical Hold Time | 56 Days | 46 Days |
Enterprise Value | $31.23B | — |
Dividend Yield | 1.49% | — |
Signals from Pluang's Aura AI — not financial advice
Quest Diagnostics (DGX) trades at $230.97, up 1.75% today, with a technical bias leaning bearish despite recent earnings beats. Revenue grew to $11.04B in 2025, with net income reaching $992M, though profit margins have moderated. Analyst consensus is a $250 price target with a mixed buy/hold sentiment. Recent news highlights growth in consumer testing and partnerships, alongside concerns over potential Medicare reimbursement cuts.
The outlook balances solid fundamentals and growth initiatives against regulatory risks. Upside potential exists from continued operational execution and new ventures like the Apple Health app integration, but investors face headwinds from reimbursement uncertainty and a high debt load. The stock's valuation appears reasonable relative to peers, supporting a cautious but opportunistic view.
IVV, tracking the S&P 500, trades at $782.06, up 0.19% with a bullish technical signal from moving averages. The ETF shows neutral oscillator readings with RSI at 68.88 suggesting mild overbought conditions. Recent news highlights S&P 500 valuation debates, with earnings growth expected to slow from 35% in 2026 to 15% in 2027 according to Wall Street analysts (24/7 Wall Street, 2026-10-03).
The outlook remains cautiously optimistic with seasonal patterns favoring year-end rallies, though concentration risks in top holdings and slowing profit growth present headwinds. Key support at $775 and resistance at $780 will dictate near-term direction as investors monitor economic data and Federal Reserve policy.
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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 →IVV tracks the performance of the S&P 500 Index, offering low-cost exposure to 500 of the largest US companies. It is a cornerstone for long-term investors seeking broad growth in the US stock market.
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