May 30 (Reuters) - Wall Street's main indexes opened

lower on Thursday as investors parsed data that showed the

economy grew less than previously expected in the first quarter,

stoking hopes for an earlier start to the Federal Reserve's rate

cuts.

The Dow Jones Industrial Average fell 73.2 points,

or 0.19%, at the open to 38,368.35. The S&P 500

fell 7.2 points, or 0.14%, at the open to 5,259.77, while the

Nasdaq Composite dropped 42.0 points, or 0.25%,

to 16,878.628 at the opening bell.