As of February 2026 First Solar has a market cap of ยฃ18.71 Billion. This makes First Solar the world's 963th 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 Feb 4th, 2026 the market cap of First Solar was reported to be: