Ken Griffin acquired 107 Thousand Arch Capital Group Ltd shares worth $10.1 Million. That's 0.01% of their equity portfolio (1158th largest holding). The first Arch Capital Group Ltd trade was made in Q2 2013. Since then Ken Griffin bought shares 49 more times and sold shares on 51 occasions. The stake costed the investor $8.63 Million, netting the investor a gain of 17% so far.