Ray Dalio acquired 2.12 Million BlackRock Institutional Trust Company N.A. - iShares Core S&P 500 ETF shares worth $1.07 Billion. It makes up 5.87% of their stock portfolio and is their biggest holding. The investor owns 41610.30% 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 seventeen more times and sold shares on eight occasions. The stake costed the investor $696 Million, netting the investor a gain of 54% so far.