Why Shake Shack Isn't Feeling The Same Sales Pressure as McDonald's, Burger King

Key TakeawaysShake Shack's earnings earlier this week showed its sales surged from a year ago.A number of its burger-selling rivals like McDonald's, however, have struggled with customers pulling back on spending and introduced value meals to drive sales in recent months.Shares of Shake Shack have climbed along with its sales, up 30% from the start of the year through Friday's close, while shares of McDonald's, Wendy's, and Burger King parent Restaurant Brands International slumped.Analysts and Shake Shack ...