Quad Graphics Inc QUAD Edges Higher as Stock Tests Key Resistance Zone Southwest Airlines LUV Edges Higher as Traders Eye Key Resistance Levels Hershey HSY Rallies Over 4 Approaches Resistance After Finding Support Renasant Corporation RNST Holds Near 41 as Stock Consolidates Below Resistance PattersonUTI Energy PTEN Holds Near 1231 Resistance After Modest Gain