Jersey Mike's NYSE: JMKE reported second-quarter same-store sales growth of 2.3%, accelerating from 1.7% in the first quarter, as transaction growth, digital marketing and limited-time menu promotions supported demand.Chief Executive Officer Charlie Morrison said same-store sales continued to improve early in the third quarter, with the company tracking above 3%. He said the performance exceeded broader fast-casual industry trends, where traffic has remained under pressure.Get Jersey Mike's alerts:“Same-sto ...