 The major US stock indices are opening lower after a slew of earnings before the opening failed to impress. A snapshot of four minutes into the open is a showing:Dow Jones industrial average -157.13 points or -0.47 at 33472.44SP index -17.97 points or -0.45 at 4001.85NASDAQ index -48.66 points or -0.43 at 11315.75Russell 2000 -7.38 points or -0.39 at 1883.37There are some big moves in the Dow Industrial Average:Nike i... 