Mercer International is trading 6.1% up at $0.15 in after-hours trading after reports it is preparing for a potential Chapter 11 filing. - Shares fell 31.71% to $0.14 at the October 22 close. - Bloomberg reported no final decision has been made; rising fiber and energy costs and persistent cash burn were cited as pressures. - The broader market was also under pressure, but the bankruptcy report was the clearest company-specific catalyst; volume and after-hours activity levels were unavailable.