Jefferies analyst Andy Barish upgraded Wingstop to Hold from Underperform with a price target of $83, up from $70. Wingstop has some of the "most powerful growth drivers" in the restaurant industry from a same-store-sales and unit growth perspective, Barish tells investors in a research note. When combined with the company's asset-lite model, the shares warrant a "premium valuation," the analyst adds. Barish is now more comfortable with the stock's risk/reward ahead of the company's first analyst day later this month given its "visible fundamental drivers."