Ken Griffin's position in Archrock is currently worth $65.6M. That's 0.06% of their equity portfolio (433rd largest holding). The investor owns 1.51% of the outstanding Archrock stock. The first Archrock trade was made in Q4 2015. Since then Ken Griffin bought shares 50 more times and sold shares on 41 occasions. The stake costed the investor $39.6M, netting the investor a gain of 66% so far.