Ken Griffin's position in Westlake is currently worth $2.85 Million. That's 0.00% of their equity portfolio (1944th largest holding). The first Westlake trade was made in Q2 2013. Since then Ken Griffin bought shares 48 more times and sold shares on 50 occasions. The stake costed the investor $1.66 Million, netting the investor a gain of 72% so far.