As of February 2026 Lumentum has a market cap of A$47.71 Billion. This makes Lumentum the world's 738th 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 Feb 4th, 2026 the market cap of Lumentum was reported to be: