US stocks open lower; debt ceiling talks eyed

Wall Street's main indexes opened lower on Tuesday, with a slew of dour earnings forecasts from companies such as Apple supplier Skyworks weighing on sentiment, while investors focused on a debt-ceiling deadlock.

The Dow Jones Industrial Average fell 28.84 points, or 0.09%, at the open to 33,589.85.

The S&P 500 opened lower by 13.87 points, or 0.34%, at 4,124.25, while the Nasdaq Composite dropped 61.14 points, or 0.50%, to 12,195.78 at the opening bell.