Ken Griffin acquired 5.31 Million JPMorgan Chase shares worth $1.09 Billion. That's 1.11% of their equity portfolio (7th largest holding). The first JPMorgan Chase trade was made in Q2 2013. Since then Ken Griffin bought shares 53 more times and sold shares on 49 occasions. The stake costed the investor $630 Million, netting the investor a gain of 73% so far.