As of December 2025 Post Holdings has a market cap of C$7.31 Billion. This makes Post Holdings the world's 2964th 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 Dec 8th, 2025 the market cap of Post Holdings was reported to be: