Joel Greenblatt's position in SSgA Active Trust - SPDR S&P 500 ETF Trust is currently worth $6.61B. It makes up 18.51% of their stock portfolio and is their biggest holding. The first SSgA Active Trust - SPDR S&P 500 ETF Trust trade was made in Q2 2011. Since then Joel Greenblatt bought shares 41 more times and sold shares on sixteen occasions. The stake costed the investor $5.45B, netting the investor a gain of 21% so far.