Coca-Cola (KO) and Starbucks (SBUX) face off in earnings showdown, with Coca-Cola's bullish signals and Starbucks' need for a caffeine boost. Will fizz or froth prevail?

Starbucks in early March unveiled its springtime line of merchandise, which includes a collection of Mother's Day cups.

CEO Brian Niccol’s goal to restore some of the coffee chain’s former homey feel includes baristas adding upbeat greetings and ...