As of December 2025 SEI Investments has a market cap of NZ$17.41 Billion. This makes SEI Investments the world's 1935th 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 4th, 2025 the market cap of SEI Investments was reported to be: