U.S. stocks are getting off to a slow start after a three-day rally.
The Dow Jones industrial average was down 49 points, or 0.4 percent, at 14,973 in the first few minutes of trading Friday.
The Standard & Poor's 500 index was down three points, or 0.2 percent, at 1,609. Technology stocks fell the most in the index.
The Nasdaq composite was down six points, or 0.2 percent, at 3,395.
BlackBerry maker Research In Motion plunged 26 percent to $10.69 after reporting a surprise loss in its first quarter. The company didn't say how many of its new BlackBerrys were sold.
The S&P 500 index is up 12.8 percent so far this year and is heading for its best first half of a year performance since 1998.