Wall Street's main indexes opened flat on Tuesday, the final trading day of a quarter that saw equities post the biggest gains in years.

Wall Street's main indexes opened higher on Monday as easing tensions in the Middle East lifted sentiment following days of hostilities between the U.S. and Iran.

Stock futures were tilting higher Tuesday as markets looked to close out the first half of the year on a positive note.

Dow Jones Today | US Stock Market Live: Wall Street futures ticked higher on Tuesday, during the final trading day of a quarter that saw equities post the biggest gains in years.

Wall Street's main indexes opened flat on Tuesday, the final trading day of a quarter that saw equities post the biggest gains in years.

S&P 500 and Nasdaq posted their biggest quarterly gains in six years.