Market Snapshot: U.S. stocks under pressure as month ends, with Amazon disappointment fueling tech selling

U.S. stocks on Friday head modestly lower on the last day of trading for the month, with technology stocks set to register the sharpest declines after disappointing results from Amazon.com.

U.S. stocks on Friday head modestly lower on the last day of trading for the month, with technology stocks set to register the sharpest declines after disappointing results from Amazon.com.