After an exciting few days for AMC Entertainment (NYSE: AMC) stock, the shares of the largest movie theater chain the world have started to lose their momentum, and Wall Street experts have retained their relatively pessimistic view of the outlook for AMC stocks in the next 12 months.Specifically, AMC shares have recently recorded massively high trading activity, in which retail traders started buying them en masse, pushing the price up and helping the company raise $250 million in new equity capital throug ...