Ken Griffin's position in BlackRock Institutional Trust Company N.A. - iShares iBoxx USD Investment Grade Corporate Bond ETF is currently worth $376 Million. That's 0.37% of their equity portfolio (42nd largest holding). The investor owns 15.11% of the outstanding BlackRock Institutional Trust Company N.A. - iShares iBoxx USD Investment Grade Corporate Bond ETF stock. The first BlackRock Institutional Trust Company N.A. - iShares iBoxx USD Investment Grade Corporate Bond ETF trade was made in Q2 2014. Since then Ken Griffin bought shares 57 more times and sold shares on 44 occasions. The investor's estimated purchase price is $393 Million, resulting in a loss of 4.2%.