QFS Asset Management announced that Dr. Jim Xiong has rejoined the firm as co-chief investment officer.  Xiong and Dr. Jim Conklin, QFS’s other co-CIO and director of research, will collaborate with the firm’s founder Dr. Sanford Grossman in pursuing new research and managing the existing investment programs.

Xiong was an employee and partner of QFS for almost 14 years until he left in mid-2011 to take a sabbatical from the industry. With his expertise in global optimization, multivariate statistics and object-oriented analysis and design, Xiang has made significant contributions to the firm’s research and investment process.

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