3Q earnings season is looking “pretty good” so far, says Don Nesbitt. He notes that analysts have been revising their estimates upwards for “the first time in about four years.” He likes AbbVie (ABBV), which he expects to beat earnings next week, PNC Financial (PNC), where he sees a “great buying opportunity” after they fell on earnings, and Linde (LIN), a “leader in the gas area” that is critical for industrial expansion.