U.S. stocks close at session lows; monthly gains erased for major indexes

SAN FRANCISCO (MarketWatch)
U.S. stocks fell Friday for the first down day in four, erasing July gains for both the Dow Jones Industrial Average and the Nasdaq Composite Index as earnings reports and Europe concerns triggered a selloff
The Dow fell 120.79 points, or 0.9%, to close at 12,822.57, putting the index down nearly 0.5% for July
The Nasdaq dropped 40.60 points, or 1.4%, and closed at its intraday low of 2,925.30, for a 0.3% loss for the month of July
The S&P 500 Index closed down 13.85 points, or 1%, at 1,362.66, and barely hung onto a gain of less than 0.1% for the month of July
For the week, the Dow closed up 0.4%, the S&P 500 rose 0.4%, and the Nasdaq advanced 0.6%