CSIMA is Columbia's student-run investment club. Membership is open to all current MBA and EMBA students. Throughout the academic year, CSIMA hosts a variety of professional, educational, and social events centered around the investing community. The annual CSIMA conference, which takes place in February of each year, brings guests and speakers from around the world. Past keynote speakers have included Bill Ackman, Joel Greenblatt, Bruce Berkowitz, and Bill Miller, among many others.