The Dow Jones industrial average was down 59 points, or 0.3 percent, at 18,055 as of 9:35 a.m. Eastern time Friday.
The Standard & Poor's 500 index dropped one point, or 0.1 percent, to 2,122. The Nasdaq composite climbed 26 points, or 0.5 percent, to 5,190.
Google surged after reporting earnings that exceeded the expectations of Wall Street analysts.