As of March 2026 Rocket Lab has a market cap of โน3.665 Trillion. This makes Rocket Lab the world's 611th 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 Mar 17th, 2026 the market cap of Rocket Lab was reported to be: