As of August 2026 Owens Corning has a market cap of โน1.079 Trillion. This makes Owens Corning the world's 1903th 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 Aug 29th, 2026 the market cap of Owens Corning was reported to be: