Xi Zhao is a member of the quantitative analysis team, developing systematic models. Prior to joining Calamos in 2021, Xi spent six years working as a quantitative researcher at General Welfare Group/Cooperfund. Xi received a Ph.D. in Mathematics from Brandeis University and a B.S. in Applied Mathematics from the Wuhan University, Hubei, China. Xi has published a research article on the application of lattice points counting to shrinking target problems.