Stocks open lower after clinching back-to-back weekly losses

U.S. stocks opened lower on Monday, adding to their losses after clinching back-to-back weekly declines for the first time since September. The S&P 500
SPX,
-0.62%
fell 4 points, or 0.1%, to 3,848. The Nasdaq Composite
COMP,
-1.10%
shed 17 points, or 0.2%, to 10,688. The Dow Jones Industrial Average
DJIA,
-0.31%
shed 37 points, or 0.1%, to 32,883.