Ken Griffin acquired 77.3 Thousand O`Reilly Automotive shares worth $84.5 Million. That's 0.09% of their equity portfolio (283rd largest holding). The first O`Reilly Automotive trade was made in Q2 2013. Since then Ken Griffin bought shares 51 more times and sold shares on 48 occasions. The stake costed the investor $32 Million, netting the investor a gain of 164% so far.