Stifel analyst Chris O'Cull raised his price target for Shake Shack to $80 from $65 while keeping a Hold rating on the shares. The stock is up 122% year-to-date due to better revenue performance and investor confidence that same-restaurant-sales gains may accelerate as a result of a national delivery partnership, O'Cull tells investors in a research note. Further, investors believe the worst of the margin pressure is behind Shake Shack due to better supply chain pricing for its Chick'n Bites, higher menu prices, and less legislated labor cost pressure in its core New York City market starting in 2020, adds the analyst. O'Cull's new price target reflects increased new unit contribution for the next few years as well as a higher margin assumption.