Stock market live Friday: S&P worst week since June, Big Tech slides, Nasdaq Composite drops 4% for week

The Dow and S&P 500 moved higher on Friday as the averages attempted to end a volatile and holiday-shortened week on a high note. The Nasdaq Composite moved between gains and losses as the tech trade continued to falter. Facebook, Amazon, Apple and Alphabet were among the Big Tech names trading in the red and weighing on the overall market.