Wall Street drops at end of tough week for retailers

U.S. stocks fell on Friday as a decline in oil prices added to pressure from consumer companies after gloomy quarterly reports from Nordstrom and J.C. Penney overshadowed upbeat April retail sales data. U.S. retail sales jumped 1.3 percent last month, the largest gain since March 2015 and a bigger rise than economists expected, the U.S. But consumer stocks, which have already been under pressure this week after a string of feeble earnings reports, fell again after Nordstrom and J.C. Penney repor