 Shares of AMC Entertainment Holdings Inc. AMC, -6.55 dove 7.2 in afternoon trading Tuesday, putting them on track to close at a 22-month low. The meme stock has now plunged 22.8 amid a three-day losing streak, since the movie theater operator announced a 110 million equity capital raise, and said it would propose a boost in common shares outstanding to permit the conversion of AMCs preferred equity units APE, 6.77 , or APEs. 