Ken Griffin's position in SSgA Active Trust - SPDR S&P 500 ETF Trust is currently worth $30 Billion. It makes up 30.87% of their stock portfolio and is their biggest holding. The investor owns 26065.62% 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 Q1 2014. Since then Ken Griffin bought shares 49 more times and sold shares on 53 occasions. The stake costed the investor $17.9 Billion, netting the investor a gain of 67% so far.