April 8 (Reuters) - Wall Street's main indexes opened

higher on Wednesday after the U.S. and Iran agreed to a two-week

ceasefire, sending crude prices lower on expectations that

energy supplies through the Strait of Hormuz could resume.

The Dow Jones Industrial Average rose 393.7 points,

or 0.85%, at the open to 46,978.17. The S&P 500 rose

137.5 points, or 2.08%, at the open to 6,754.36​, while the

Nasdaq Composite rose 803.4 points, or 3.65%, to

22,821.209 at the opening bell.

(Reporting by Purvi Agarwal in Bengaluru; Editing by Shinjini

Ganguli)