As of March 2026 Rocket Lab has a market cap of HK$319.72 Billion. This makes Rocket Lab the world's 579th 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 19th, 2026 the market cap of Rocket Lab was reported to be: