Jim Simons's position in Cboe Global Markets is currently worth $315M. That's 0.43% of their equity portfolio (26th largest holding). The first Cboe Global Markets trade was made in Q2 2013. Since then Jim Simons bought shares 22 more times and sold shares on 28 occasions. The stake costed the investor $68.1M, netting the investor a gain of 362% so far.