As of January 2026 MP Materials has a market cap of NZ$20.51 Billion. This makes MP Materials the world's 1773th 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 Jan 15th, 2026 the market cap of MP Materials was reported to be: