Sept 24 (Reuters) - Wall Street's main indexes opened

slightly higher on Tuesday, as investors scoured for clues on

what the Federal Reserve's next policy move might be, while

commodity stocks got a boost after China unveiled a bumper

stimulus package.

The Dow Jones Industrial Average rose 110.3 points,

or 0.26%, at the open to 42234.99. The S&P 500 rose 9.1

points, or 0.16%, at the open to 5727.66​, while the Nasdaq

Composite rose 72.2 points, or 0.40%, to 18046.442 at

the opening bell.