There's a slew of earnings that Diane King Hall talks investors through at the start of Tuesday's trading session. She notes weaknesses in Corning's (GLW) latest report after the stock shined as an outperformer so far this year. UPS Inc. (UPS) beat, but as Diane points out, there's concerns surrounding domestic sales trends for the company. Coca-Cola (KO) shined as a winner, both in its earnings and stock price.