Don't knock the disposable earbuds... American Airlines has two major things not going for it. One: it's an airline during a deadly pandemic. Two: it lost a record $8.9B last year, and doesn't expect a rebound any time soon. That's partly why American has been the most-shorted US airline. Coincidentally (but not at all), American stock soared 17% from Monday to Thursday. And that's likely partly thanks to Reddit.
The DL on short sells... So how exactly are they "getting back" at Wall Street? It all goes back to short selling: Basically, some professional investors borrow shares of a company whose stock they think will fall. Then they sell those shares, hoping to buy them back later at a lower price and return them to the broker. If the shares fall, their profit = the difference between the price when they sold the shares and the price when they bought them back (minus interest on the loaned stock, and any transaction costs).
Retail investors turned the tables... on professional investors like hedge funds. Like Matt Damon in Good Will Hunting standing up to the snooty Harvard student, retail investors said: "How do you like them shorts?” It’s not clear how much we’ll see this trend in the future. And it’s possible that professionals are getting in on the Reddit buying, too. After last week, it's likely that hedge funds will reevaluate their positions in heavily shorted stocks.