As of January 2026 NewMarket Corp has a market cap of โฌ5.23 Billion. This makes NewMarket Corp the world's 2797th 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 21st, 2026 the market cap of NewMarket Corp was reported to be: