As of June 2026 Post Holdings has a market cap of A$5.71 Billion. This makes Post Holdings the world's 3596th 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 Jun 18th, 2026 the market cap of Post Holdings was reported to be: