Joel Greenblatt acquired 35.3 Thousand Pioneer Natural Resources shares worth $9.5 Million. That's 0.17% of their equity portfolio (114th largest holding). The first Pioneer Natural Resources trade was made in Q3 2018. Since then Joel Greenblatt bought shares nine more times and sold shares on seven occasions. The stake costed the investor $8.58 Million, netting the investor a gain of 11% so far.