Ken Griffin's position in Interpublic Group Of Cos. is currently worth $55.7 Million. That's 0.06% of their equity portfolio (395th largest holding). The first Interpublic Group Of Cos. trade was made in Q2 2013. Since then Ken Griffin bought shares 46 more times and sold shares on 49 occasions. The stake costed the investor $47.4 Million, netting the investor a gain of 18% so far.