Quest Diagnostics Incorporated
Quest Diagnostics Incorporated (DGX) Market Cap & Net Worth
Live market cap, enterprise value, and global rank — multi-year chart and annual table below.
dgx · market cap & enterprise value · FMP · as of Jun 8, 2026
Core market cap & key metrics
As of Jun 8, 2026, Quest Diagnostics Incorporated (DGX) has a market cap — also referred to as its net worth or valuation — of $21.8B, making it one of the top most valuable companies globally. Market Cap = $197.21 × shares outstanding.
Market cap history — by year
* 2026 = year-to-date · Year-end market cap · Source: FMP
Market cap by year
Compared to Peers
View Healthcare sectorAbout Market Cap, Net Worth & Valuation
Quest Diagnostics Incorporated (DGX) has a market cap — also referred to as its net worth or valuation — of $21.8B as of Jun 8, 2026, making it the #0 most valuable company globally. Market Cap = Stock Price × Shares Outstanding.
Quest Diagnostics Incorporated reached its all-time high market cap of $21.6B on Dec 31, 2021. Comparing the Quest Diagnostics Incorporated market cap history illustrates one of the most extraordinary corporate growth stories.
Investors frequently compare Quest Diagnostics Incorporated net worth vs peers and ask how Quest Diagnostics Incorporated valuation compares to other countries. Its market cap reflects continued investor confidence.
Frequently Asked Questions
DGX market cap · 6 questionsQuest Diagnostics Incorporated's net worth — measured as market capitalization — is $21.8B as of Jun 8, 2026. It ranks #0 globally. Market Cap = $$197.21 (price) × shares outstanding.