Ken Griffin's position in Affiliated Managers Group is currently worth $63.6 Million. That's 0.06% of their equity portfolio (398th largest holding). The investor owns 1.27% of the outstanding Affiliated Managers Group stock. The first Affiliated Managers Group trade was made in Q2 2013. Since then Ken Griffin bought shares 56 more times and sold shares on 55 occasions. The stake costed the investor $48.7 Million, netting the investor a gain of 31% so far.