As of December 2025 Rocket Lab has a market cap of ยฃ20.64 Billion. This makes Rocket Lab the world's 843th 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 8th, 2025 the market cap of Rocket Lab was reported to be: