Quest Diagnostics Inc vs Main Street Capital Corporation — how do they compare? Quest Diagnostics Inc trades at $205.45 (market cap $22.80B), while Main Street Capital Corporation trades at $53.31 (market cap $4.94B). The key difference: Quest Diagnostics Inc is far larger — about 4.6× Main Street Capital Corporation's market cap, and Main Street Capital Corporation pays the higher dividend (8.25%). Which is the better fit depends on your goals.
| DGX | MAIN | |
|---|---|---|
Market Cap | $22.80B | $4.94B |
Sector | Health | Financials |
52-Week High | $216.02 | $67.54 |
52-Week Low | $166.42 | $49.63 |
Enterprise Value | $28.82B | — |
Dividend Yield | 1.67% | 8.25% |
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.
Main Street Capital (MAIN) trades at $52.51, down 0.62% on the day, with a bullish technical signal from moving averages. The company reported a net income margin of 81.08% for 2025, though revenue dipped to $592M from $601M in 2024. Recent news highlights MAIN's premium valuation among internally managed BDCs and a consistent dividend history, with the latest quarterly earnings showing a mix of beats and misses against expectations.
The outlook is supported by a consensus price target of $57.75, implying upside, but risks include softening earnings and negative operating cash flow. The stock offers a high yield, but investors should weigh the sustainability of dividends against rising expenses and a higher share count noted in recent analysis.
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 →Main Street Capital Corp is an investment firm engaged in providing customized debt and equity financing to lower middle market companies and debt capital to middle market companies. The investment portfolio of the company is typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in diverse industry sectors. The group invests in secured debt investments, equity investments, warrants and other securities of the lower middle market and middle market companies based in the US. Business is functioned through the U.S region and it derives the majority of the income from the source of fee, commission, and interest.
Read more on MAIN →