Cinema chain AMC Entertainment (NYSE: AMC) soared in Wednesday trading 301.21% to $ 19.9.  The optimism was fueled by the sale of 63.3 million Class A shares, which raised $ 304.8 million. The shares rose by a whopping 570% in the last five days, and the gain for the month was 821%. Financial analyst B. Riley Eric Wold raised the target price of the shares to $ 5.50 (72% downside) from $ 3.50, but retained its Hold rating, calling the company's recent announcements "positive." AMC could also have been caught by investors thanks to Reddit, as happened with GameStop (NYSE  : GME), whose quotes have already added more than 1000% since mid-January.