AMC (AMC -1.50%), the world's largest owner of movie theaters, was also one of the original meme stocks that popped in 2020 and 2021.Retail investors, through the power of social media and investing chat groups, started looking for stocks with high short interest, even if the company's fundamentals weren't strong.They realized that by working together to purchase shares and refusing to sell, they could keep the stock price higher for longer, eventually forcing short-sellers to repurchase their borrowed shar ...