Joel Greenblatt acquired 818k Oge Energy shares worth $38.4M. That's 0.11% of their equity portfolio (216th largest holding). The first Oge Energy trade was made in Q1 2016. Since then Joel Greenblatt bought shares fourteen more times and sold shares on eight occasions. The stake costed the investor $36.6M, netting the investor a gain of 4.9% so far.