Ken Griffin acquired 169k ProShares Trust - ProShares Ultra QQQ 2x Shares shares worth $21.4M. That's 0.02% of their equity portfolio (899th largest holding). The investor owns 70.36% of the outstanding ProShares Trust - ProShares Ultra QQQ 2x Shares stock. The first ProShares Trust - ProShares Ultra QQQ 2x Shares trade was made in Q1 2014. Since then Ken Griffin bought shares 51 more times and sold shares on 60 occasions. The stake costed the investor $6.88M, netting the investor a gain of 211% so far.