SEI Investments (NASDAQ:SEIC – Get Free Report) announced its quarterly earnings results on Wednesday. SEI Investments had a net margin of 31.09% and a return on equity of 30.21%. SEI Investments Stock Up 1.7%Shares of SEI Investments stock opened at $86.10 on Thursday. SEI Investments has a 1 year low of $64.66 and a 1 year high of $93.96. See AlsoReceive News & Ratings for SEI Investments Daily - Enter your email address below to receive a concise daily summary of the latest news and analysts' ratings for SEI Investments and related companies with MarketBeat.com's FREE daily email newsletter.