The movie theater chain is on the comeback trail. : AMC Entertainment Holdings stock jumped to $12.77 on Thursday after announcing it raised over $400 million through a 43 million share at-the-market equity offering, reports Barron’s. Individual investors on Reddit and social media chatted up the #AMCSqueeze hashtag all day. CEO Adam Aron talked up AMC’s hype on Reddit’s WallStreetBets forum. The online trading discussion group made headlines last January after buying up AMC stock and making huge bets on companies like GameStop, which hedge funds had shorted.