Ken Griffin acquired 77.3 Thousand O`Reilly Automotive shares worth $81.5 Million. That's 0.08% of their equity portfolio (294th 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 155% so far.