As of January 2026 Koppers has a market cap of NZ$1.00 Billion. This makes Koppers the world's 6977th 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 14th, 2026 the market cap of Koppers was reported to be: