The USA500 is currently trading below 6,100 levels.
US stocks were mixed to lower after the close on Thursday, as gains in the Telecoms, Financials and Healthcare sectors led shares higher while losses in the Consumer Goods, Utilities and Consumer Services sectors pressured stocks.
On Thursday the S&P 500 was down 0.04%, the Nasdaq 100 declined by 0.05%, while the Dow Jones climbed 0.07%.