Jan 29 (Reuters) - Wall Street's main indexes were

subdued at the open on Wednesday, as losses in tech heavyweights

Apple ( AAPL ) and Nvidia ( NVDA ) kept broader gains in check and investor

attention turned to the U.S. Federal Reserve's interest-rate

decision, due later in the day.

The Dow Jones Industrial Average fell 30.8 points, or

0.07%, at the open to 44,819.55. The S&P 500 fell 10.0

points, or 0.16%, at the open to 6,057.7​, while the Nasdaq

Composite dropped 37.9 points, or 0.19%, to 19,695.68 at

the opening bell.