Jim Simons acquired 182 Thousand Diamondback Energy shares worth $37.2 Million. That's 0.06% of their equity portfolio (387th largest holding). The first Diamondback Energy trade was made in Q1 2014. Since then Jim Simons bought shares twelve more times and sold shares on fourteen occasions. The stake costed the investor $28.5 Million, netting the investor a gain of 30% so far.