As of April 2025 Idemitsu Kosan has a market cap of €6.67 Billion. This makes Idemitsu Kosan the world's 2038th 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 Apr 22nd, 2025 the market cap of Idemitsu Kosan was reported to be: