Ken Griffin's position in Omnicom Group is currently worth $13.2 Million. That's 0.01% of their equity portfolio (993rd largest holding). The first Omnicom Group trade was made in Q2 2013. Since then Ken Griffin bought shares 51 more times and sold shares on 47 occasions. The stake costed the investor $10.1 Million, netting the investor a gain of 31% so far.