Ken Griffin's position in Omnicom Group is currently worth $74.2 Million. That's 0.07% of their equity portfolio (344th largest holding). The first Omnicom Group trade was made in Q2 2013. Since then Ken Griffin bought shares 59 more times and sold shares on 54 occasions. The stake costed the investor $74.1 Million, netting the investor a gain of 0.2% so far.