As of February 2025 Quest Diagnostics has a market cap of €18.19 Billion. This makes Quest Diagnostics the world's 1028th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Feb 20th, 2025 the market cap of Quest Diagnostics was reported to be: