Diane King Hall breaks down this morning's earnings movers across retail. Kohl's (KSS) posted a narrower loss with its best performance in four years and cleaner inventory, while Best Buy (BBY) muscled strength in gaming, computing and mobile services. Burlington (BURL) stores also topped earnings and raised full year EPS guidance, though shares sold off on the report. Diane also notes Dollar Tree's (DLTR) big move higher after earnings.