Tuesday's early trade: Dips in Facebook, Apple leave Wall Street lower

Wall Street dipped on Tuesday, weighed down by Apple, Facebook and other technology stocks, in a trading session ending early ahead of the US July 4 holiday. Facebook dropped 2.35 percent after the Washington Post reported a federal probe on the data breach linked to Cambridge Analytica was broadened and will include more government agencies.
The dip in the social media company's stock, along with a 1.7 percent slide in Apple, weighed on the S&P technology sector, which fell 1.37 percent. Energy stocks held onto gains even after crude oil prices reversed course shortly after the market opened as traders booked profits.
Trade tensions continued to fester, with US President Donald Trump on Monday making a veiled threat against the World Trade Organization. Also looming is a July 6 deadline when Washington is set to impose tariffs on $34 billion worth of Chinese goods.
"In the short term, company fundamentals are quite solid and the economy is strong," said Brant Houston, managing director at CIBC Private Wealth Management.
Shares of American Airlines, United Continental and Delta Air Lines fell between 1 percent and 2.28 percent after Deutsche Bank downgraded all three stocks saying the growing US-China trade dispute could weigh on their results.
The Dow Jones Industrial Average declined 0.54 percent to end at 24,174.82 points, while the S&P 500 lost 0.49 percent to 2,713.22.
The Nasdaq Composite dropped 0.86 percent to 7,502.67.
With US exchanges closing at 1 p.m. ET ahead of the July 4 holiday, volume was 3.9 billion shares, compared to the 7.1 billion average over the last 20 trading days.