Dow Jones futures, the S&P 500, and Nasdaq futures are expected to open on Sunday evening following President Donald Trump's announcement that the U.S. had conducted airstrikes on three Iranian nuclear facilities.

Stock futures ticked lower before markets reopened Friday morning amid uncertainty among investors over the Middle East and whether the United States was about to get directly involved in the Israel-Iran conflict.

Stocks rose and oil prices retreated on Monday as investors shrugged off the continuation of hostilities between Israel and Iran over the weekend.