Most Sector Leaders finished narrowly mixed Tuesday. But a few traded in volatile fashion. Michael Kors (KORS) closed well off its session high, but still rose 0.43 to 51.01 in a wild session Tuesday following its latest quarterly results. The stock closed little changed for the third straight session and above support at the 50 level. Turnover swelled more than three-times average and marked the busiest session since a secondary stock offering on