Ken Griffin's position in Petroleo Brasileiro S.A. Petrobras - ADR is currently worth $70.3 Million. That's 0.07% of their equity portfolio (330th largest holding). The first Petroleo Brasileiro S.A. Petrobras - ADR trade was made in Q2 2013. Since then Ken Griffin bought shares 57 more times and sold shares on 41 occasions. The stake costed the investor $55.3 Million, netting the investor a gain of 27% so far.