US stocks open lower. S&P down for the 3rd day in a row. Dow/Nasdaq down for the 4th day.

As traders return from the presence day holiday on Monday (and three day weekend), the major US indices are opening lower with the Dow and NASDAQ index the weakest.

The S&P is lower for the third straight day
The NASDAQ and Dow are for four consecutive days
The major indices are down fo