Stocks opened higher Monday and built on Friday's gains. The Nasdaq rose 0.8% and cleared its July 5 high. The Dow Jones industrial average and S&P 500 rose 0.6% and 0.5%, respectively. But volume was tracking lower across the board. Michael Kors (KORS) rose 4% to its best levels in nearly a month. The stock is still trying to form its first base since coming public in December. After a fast start, Michael Kors has been consolidating gains since