Joel Greenblatt's position in BlackRock Institutional Trust Company N.A. - iShares Core S&P 500 ETF is currently worth $321M. That's 0.90% of their equity portfolio (5th largest holding). The first BlackRock Institutional Trust Company N.A. - iShares Core S&P 500 ETF trade was made in Q2 2022. Since then Joel Greenblatt bought shares eleven more times and sold shares on three occasions. The stake costed the investor $230M, netting the investor a gain of 39% so far.