As of December 2025 MP Materials has a market cap of โน856.57 Billion. This makes MP Materials the world's 2011th 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 20th, 2025 the market cap of MP Materials was reported to be: