As of September 2026 Lumentum has a market cap of โน8.004 Trillion. This makes Lumentum the world's 289th 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 Sep 19th, 2026 the market cap of Lumentum was reported to be: