Joel Greenblatt's position in Halliburton is currently worth $46.9M. That's 0.13% of their equity portfolio (161st largest holding). The first Halliburton trade was made in Q1 2012. Since then Joel Greenblatt bought shares 29 more times and sold shares on 21 occasions. The stake costed the investor $25.8M, netting the investor a gain of 82% so far.