Jim Simons acquired 1.98M Interactive Brokers Group shares worth $127M. That's 0.16% of their equity portfolio (126th largest holding). The first Interactive Brokers Group trade was made in Q2 2013. Since then Jim Simons bought shares 21 more times and sold shares on 21 occasions. The stake costed the investor $45.4M, netting the investor a gain of 180% so far.