Joel Greenblatt's position in Griffon is currently worth $1.45 Million. That's 0.03% of their equity portfolio (621st largest holding). The first Griffon trade was made in Q4 2013. Since then Joel Greenblatt bought shares seven more times and sold shares on eight occasions. The stake costed the investor $1.43 Million, netting the investor a gain of 1.4% so far.