As of August 2026 SEI Investments has a market cap of โฌ11.07 Billion. This makes SEI Investments the world's 1720th 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 Aug 18th, 2026 the market cap of SEI Investments was reported to be: