Sportswear maker Perry Ellis (PERY) popped 14% Thursday after marking a fifth straight quarter of earnings declines, although the slip was less than expected. Sales backed off 5% -- worse than estimates. The company gave a full-year earnings forecast below consensus views. It's the most recent example of mostly weak stocks propelling the Apparel-Clothing industry group lately. The group ranked No. 15 Thursday, up from a saggy No. 65 ranking at the