Aug 13 (Reuters) - Wall Street's main indexes opened

higher on Wednesday with the benchmark S&P 500 and the Nasdaq

hitting record highs, underpinned by growing optimism that the

Federal Reserve could restart its monetary policy easing cycle

next month.

The Dow Jones Industrial Average rose 112.9 points,

or 0.25%, at the open to 44571.53. The S&P 500 rose 16.9

points, or 0.26%, to 6462.67​, while the Nasdaq Composite

rose 82.6 points, or 0.38%, to 21764.548.