April 21 (Reuters) - Wall Street's main indexes opened higher on Tuesday as renewed artificial intelligence optimism and strong corporate earnings bolstered markets battered by constant back-and-forth over the resolution of the Middle East conflict.

The Dow Jones Industrial Average rose 245.8 points, or 0.50%, at the open to 49,688.37. The S&P 500 rose 13.5 points, or 0.19%, at the open to 7,122.64​, while the Nasdaq Composite rose 60.9 points, or 0.25%, to 24,465.339.

(Reporting by Niket Nishant and Avinash P in Bengaluru; Editing by Shinjini Ganguli)