As of January 2026 Post Holdings has a market cap of โน469.85 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: