Joel Greenblatt acquired 52.8 Thousand DTE Energy shares worth $7 Million. That's 0.06% of their equity portfolio (436th largest holding). The investor owns Inf% of the outstanding DTE Energy stock. The first DTE Energy trade was made in Q3 2016. Since then Joel Greenblatt bought shares fourteen more times and sold shares on twelve occasions. The stake costed the investor $6.05 Million, netting the investor a gain of 16% so far.