As of December 2025 Rocket Lab has a market cap of NZ$55.54 Billion. This makes Rocket Lab the world's 730th 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 18th, 2025 the market cap of Rocket Lab was reported to be: