As of December 2025 Post Holdings has a market cap of A$7.88 Billion. This makes Post Holdings the world's 2985th 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 22nd, 2025 the market cap of Post Holdings was reported to be: