 The week on Wall Street dragged to a close. Stocks drifted lower on Wall Street, erasing markets gained a week. The S&P 500 slipped for 10 percent Friday, but remains close to the record high it set last week. The Nasdaq Composite fell 7 tenths percent. The Dow slipped 45 points. That's about one tenth of a percent. Nike dropped 20 percent after the shoe and athletic wear company missed Wall Street's revenue targets and cut its full year sales guidance.