Joel Greenblatt's position in Assured Guaranty Ltd is currently worth $16.2 Million. That's 0.16% of their equity portfolio (135th largest holding). The first Assured Guaranty Ltd trade was made in Q4 2011. Since then Joel Greenblatt bought shares seventeen more times and sold shares on eleven occasions. The stake costed the investor $13 Million, netting the investor a gain of 25% so far.