Aug 19 (Reuters) - Wall Street's main indexes opened

flat on Monday after clocking their best week of the year, while

investors looked ahead to Federal Reserve Chair Jerome Powell's

speech at Jackson Hole for rate-cut indications.

The Dow Jones Industrial Average rose 11.1 points, or

0.03%, at the open to 40,670.83. The S&P 500 rose 3.0

points, or 0.05%, at the open to 5,557.23​, while the Nasdaq

Composite rose 18.0 points, or 0.10%, to 17,649.741 at

the opening bell.

(Reporting by Shashwat Chauhan in Bengaluru; Editing by Devika

Syamnath)