Technology and industrial companies dropped the most as the S&P 500 heads for a second straight weekly decline. That hasn't happened so far in a year where the index is up about 14%. Deere shares dropped 4.6% after the farm equipment maker's second quarter earnings missed Wall Street expectations. Deere lowered its outlook for year due to the trade war and a weakened agriculture sector.
The S&P 500 index fell 17 points, or 0.6%, to 2,858. The Dow slid 155 points, or 0.6%, to 25,708. The Nasdaq dropped 59 points, or 0.7%, to 7,838. The yield on the 10 year Treasury fell to 2.37% from 2.40% Thursday.