Joel Greenblatt's position in Exxon Mobil is currently worth $27.1 Million. That's 0.49% of their equity portfolio (17th largest holding). The first Exxon Mobil trade was made in Q4 2011. Since then Joel Greenblatt bought shares 22 more times and sold shares on eighteen occasions. The stake costed the investor $17 Million, netting the investor a gain of 59% so far.