Ray Dalio acquired 2.18 Million BlackRock Institutional Trust Company N.A. - iShares Core S&P 500 ETF shares worth $1.37 Billion. That's 5.97% of their entire equity portfolio (2nd largest holding). The investor owns 54.86% of the outstanding BlackRock Institutional Trust Company N.A. - iShares Core S&P 500 ETF stock. The first BlackRock Institutional Trust Company N.A. - iShares Core S&P 500 ETF trade was made in Q3 2010. Since then Ray Dalio bought shares twenty more times and sold shares on ten occasions. The stake costed the investor $741 Million, netting the investor a gain of 84% so far.