Diane King Hall turns to the market movers kicking off trading action to start the short week, including a Southwest Airlines (LUV) upgrade from UBS. Redburn has varying views on the discount retailer space through its upgrade on Dollar Tree (DLTR) and downgrade in Dollar General (DG). In the cybersecurity industry, Diane explains why Mizuho cut its price target on Palo Alto Networks (PANW) ahead of earnings.