As of January 2026 Post Holdings has a market cap of C$7.19 Billion. This makes Post Holdings the world's 3060th 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 18th, 2026 the market cap of Post Holdings was reported to be: