Ken Griffin acquired 9.85 Million BlackRock Institutional Trust Company N.A. - iShares iBoxx USD High Yield Corporate Bond ETF shares worth $789 Million. That's 0.76% of their equity portfolio (5th largest holding). The investor owns 31.67% of the outstanding BlackRock Institutional Trust Company N.A. - iShares iBoxx USD High Yield Corporate Bond ETF stock. The first BlackRock Institutional Trust Company N.A. - iShares iBoxx USD High Yield Corporate Bond ETF trade was made in Q1 2014. Since then Ken Griffin bought shares 59 more times and sold shares on 43 occasions. The stake costed the investor $786 Million, netting the investor a gain of 0.4% so far.