As of February 2026 Post Holdings has a market cap of โน504.65 Billion. This makes Post Holdings the world's 2979th 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 Feb 27th, 2026 the market cap of Post Holdings was reported to be: