Wingstop, a portfolio company of Roark Capital Group, has filed to raise up to $86.25 million in an IPO. Founded in 1994, Wingstop specializes in cooked-to-order, hand-sauced and tossed chicken wings. In addition to general corporate purposes, proceeds from the offering will be used to repay debt and pay a fee to Roark in connection with the termination of its management agreement. For the fiscal year ended December 27, 2014, the restaurant group earned nearly $9 million in net income on total revenues of more than $67 million. Wingstop plans to list on the NASDAQ under the symbol WING.