As of May 2026 Rocket Lab has a market cap of NZ$126.35 Billion. This makes Rocket Lab the world's 327th 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 May 19th, 2026 the market cap of Rocket Lab was reported to be: