May 22 (Reuters) - Wall Street's main stock indexes

opened muted on Wednesday as investors kept to the sidelines

ahead of AI chip leader Nvidia's ( NVDA ) quarterly results and the

Federal Reserve's policy meeting minutes later in the day.

The Dow Jones Industrial Average fell 9.66 points, or

0.02%, at the open to 39,863.33. The S&P 500 opened lower

by 2.13 points, or 0.04%, at 5,319.28, while the Nasdaq

Composite gained 6.40 points, or 0.04%, to 16,839.02 at

the opening bell.

(Reporting by Ankika Biswas in Bengaluru; Editing by Devika

Syamnath)