Ray Dalio acquired 1.49 Million BlackRock Institutional Trust Company N.A. - iShares MBS ETF shares worth $143 Million. That's 0.79% of their equity portfolio (20th largest holding). The investor owns 121.84% of the outstanding BlackRock Institutional Trust Company N.A. - iShares MBS ETF stock. The investor's estimated purchase price is $149 Million, resulting in a loss of 4.4%.