Stock futures were down on Sunday as investors reacted to the U.S. attack on Iranian nuclear facilities on Saturday. Oil prices jumped amid fears that Tehran’s retaliation could disrupt crude flows. The dollar tumbled as it continues to lose favor as a safe-haven asset,

The Iranian parliament has voted to close the Strait of Hormuz, although the final decision still lies with the country's top security officials.

Oil prices surged, stocks dropped and investors flocked to safe havens like gold on Friday after tensions between Israel and Iran escalated, stoking concerns of a broader conflict in the region.