Joel Greenblatt acquired 377k Omnicom Group shares worth $27.8M. That's 0.08% of their equity portfolio (330th largest holding). The first Omnicom Group trade was made in Q2 2011. Since then Joel Greenblatt bought shares 32 more times and sold shares on 27 occasions. The investor's estimated purchase price is $28.7M, resulting in a loss of 3.2%.