Joel Greenblatt's position in W.R. Berkley is currently worth $1 Million. That's 0.01% of their equity portfolio (845th largest holding). The first W.R. Berkley trade was made in Q3 2013. Since then Joel Greenblatt bought shares fourteen more times and sold shares on fifteen occasions. The stake costed the investor $815 Thousand, netting the investor a gain of 23% so far.