Stocks sold off modestly in late trading after a 3-day rebound.

Dow ends -170, -0.6% to 26,119. S&amp;P -0.4%. 

Nasdaq +0.2% as some tech issues once again function as good places to shelter. $GOOGL, $QCOM, $AMZN and $MSFT all finish higher.

8 of 11 S&amp;P stock sectors decline.