From Jan. 2, or the first trading day of 2024, to May 10, shares of AMC Entertainment (NYSE:AMC) plunged lower by 52%. However, AMC stock is up about 70% from May 10 to today.A strong box office isn’t behind the gains. AMC’s first-quarter revenue was $951.4 million compared to $954.4 million a year ago. Its net loss improved by 72% to $163.5 million.Rather, the return of Roaring Kitty following a nearly three-year social media hiatus is the main cause behind AMC stock’s surge. Roaring Kitty was instrumental ...