Jim Simons's position in Rio Tinto plc - ADR is currently worth $19.5 Million. That's 0.03% of their equity portfolio (599th largest holding). The first Rio Tinto plc - ADR trade was made in Q2 2013. Since then Jim Simons bought shares nineteen more times and sold shares on fourteen occasions. The stake costed the investor $17.3 Million, netting the investor a gain of 12% so far.