Joel Greenblatt's position in SSgA Active Trust - SPDR S&P 500 ETF Trust is currently worth $491 Million. It makes up 8.92% of their stock portfolio and is their biggest holding. The investor owns 465.40% of the outstanding SSgA Active Trust - SPDR S&P 500 ETF Trust stock. The first SSgA Active Trust - SPDR S&P 500 ETF Trust trade was made in Q2 2011. Since then Joel Greenblatt bought shares 32 more times and sold shares on sixteen occasions. The stake costed the investor $421 Million, netting the investor a gain of 17% so far.