Ken Griffin's position in Archrock is currently worth $53.9 Million. That's 0.05% of their equity portfolio (449th largest holding). The investor owns 1.22% of the outstanding Archrock stock. The first Archrock trade was made in Q4 2015. Since then Ken Griffin bought shares 48 more times and sold shares on 40 occasions. The stake costed the investor $31.4 Million, netting the investor a gain of 71% so far.