As of January 2026 Merck has a market cap of โน25.016 Trillion. This makes Merck the world's 55th 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 Jan 13th, 2026 the market cap of Merck was reported to be: