Ken Griffin's position in SSgA Active Trust - SSGA SPDR S&P 500 is currently worth $11.8 Billion. It makes up 17.53% of their stock portfolio and is their biggest holding. The investor owns 5109.21% of the outstanding SSgA Active Trust - SSGA SPDR S&P 500 stock. The first SSgA Active Trust - SSGA SPDR S&P 500 trade was made in Q1 2014. Since then Ken Griffin bought shares 36 more times and sold shares on 39 occasions. The stake costed the investor $8.93 Billion, netting the investor a gain of 32% so far.