Weak earnings from Ford, others drag stocks lower

FILE - Traders Daniel Leporin, left, and Michael Urkonis work on the floor of the New York Stock Exchange in this April 23, 2014 file photo. Global stocks tumbled Friday April 25, 2014 after tensions over Ukraine mounted and Standard & Poor's cut Russia's credit rating, warning of capital flight and risks to investment due to the crisis. (AP Photo/Richard Drew, File)

NEW YORK (AP) — Stocks are heading lower in early trading following disappointing earnings reports from Ford and other big companies.

Amazon fell 8 percent after the huge online retailer forecast an operating loss for the second quarter as it continues to invest heavily in its business.

The Standard & Poor's 500 index fell six points, or 0.3 percent, to 1,872 in the first few minutes of trading Friday. The index is still up slightly for the week.

The Dow Jones industrial average fell 78 points, or 0.5 percent, to 16,420. The Nasdaq composite fell 22 points, or 0.6 percent, to 4,125.

Ford fell 3 percent after reporting earnings that fell short of Wall Street's expectations. Whirlpool also fell 2 percent after its own earnings didn't match what investors were looking for.