Joel Greenblatt acquired 30.5 Thousand DTE Energy shares worth $3.56 Million. That's 0.05% of their equity portfolio (456th largest holding). The first DTE Energy trade was made in Q3 2016. Since then Joel Greenblatt bought shares eleven more times and sold shares on eleven occasions. The stake costed the investor $3.47 Million, netting the investor a gain of 2.5% so far.