Joel Greenblatt's position in Coherent is currently worth $2.82 Million. That's 0.05% of their equity portfolio (476th largest holding). The first Coherent trade was made in Q4 2010. Since then Joel Greenblatt bought shares sixteen more times and sold shares on 26 occasions. The stake costed the investor $2.07 Million, netting the investor a gain of 37% so far.