John “Jan” Eckstein joined Astor in 2011 and serves as Chief Investment Officer. In 1995, she founded Cornerstone Quantitative Investment Group, a global macro hedge fund with peak assets of $600 million. Prior to Cornerstone, Eckstein was a researcher for Luck Trading Company, a commodity trading adviser and is a co-author of Commodity Investing (John Wiley & Sons, 2008). She holds a B.S. from Brown University and a Masters in Public Administration (MPA – International Economic Policy) from Columbia University.