As of October 2026 SEI Investments has a market cap of C$17.51 Billion. This makes SEI Investments the world's 1724th 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 2nd, 2026 the market cap of SEI Investments was reported to be: