As of May 2026 Post Holdings has a market cap of โน439.54 Billion. This makes Post Holdings the world's 3295th 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 May 15th, 2026 the market cap of Post Holdings was reported to be: