As of December 2025 ON Semiconductor has a market cap of โฌ19.22 Billion. This makes ON Semiconductor the world's 1017th 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 Dec 6th, 2025 the market cap of ON Semiconductor was reported to be: