As of December 2025 Merck has a market cap of C$351.59 Billion. This makes Merck the world's 59th 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 Dec 4th, 2025 the market cap of Merck was reported to be: