As of November 2026 Owens Corning has a market cap of โน955.99 Billion. This makes Owens Corning the world's 1994th 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 Nov 4th, 2026 the market cap of Owens Corning was reported to be: