Ken Griffin acquired 1.45 Million Halliburton shares worth $29.3 Million. That's 0.03% of their equity portfolio (676th largest holding). The first Halliburton trade was made in Q2 2013. Since then Ken Griffin bought shares 61 more times and sold shares on 50 occasions. The investor's estimated purchase price is $50.5 Million, resulting in a loss of 42%.