As of October 2026 Onto Innovation has a market cap of โน1.398 Trillion. This makes Onto Innovation the world's 1492th 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 Oct 10th, 2026 the market cap of Onto Innovation was reported to be: