As of May 2026 Koppers Holdings has a market cap of C$1.05 Billion. This makes Koppers Holdings the world's 6579th 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 May 21st, 2026 the market cap of Koppers Holdings was reported to be: