US stocks opened lower on Friday, dragged down by Apple and developments around the impending vote on Britain exiting the European Union.
The Dow Jones industrial average was down 20.54 points, or 0.12% at 17,712.56, the S&P 500 was down 2.99 points, or 0.14% at 2,075 and the Nasdaq composite was down 14.65 points, or 0.3% at 4,830.26.