Ken Griffin acquired 1.5 Million CDW shares worth $247 Million. That's 0.35% of their equity portfolio (25th largest holding). The investor owns 1.15% of the outstanding CDW stock. The first CDW trade was made in Q2 2013. Since then Ken Griffin bought shares 41 more times and sold shares on 34 occasions. The investor's estimated purchase price is $249 Million, resulting in a loss of 0.7%.