Ray Dalio acquired 1.83 Million BlackRock Institutional Trust Company N.A. - iShares Core S&P 500 ETF shares worth $786 Million. That's 4.90% of their equity portfolio (2nd largest holding). The investor owns 666.18% 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 fourteen more times and sold shares on eight occasions. The stake costed the investor $587 Million, netting the investor a gain of 34% so far.