Joel Greenblatt's position in Halliburton is currently worth $3.78 Million. That's 0.06% of their equity portfolio (434th largest holding). The first Halliburton trade was made in Q1 2012. Since then Joel Greenblatt bought shares 22 more times and sold shares on twenty occasions. The stake costed the investor $1.98 Million, netting the investor a gain of 91% so far.