FatFish is a joke, page-29

I think are the short sellers who do that. There are investors who place trades with a broker to sell a stock at a perceived high price with the expectation that it'll decline. These are called short-selling trades. If the stock price falls, the short seller profits by buying the stock at the lower price–closing out the trade. The net difference between the sale and buy prices is settled with the broker. Although short-sellers are profiting from a declining price, they're not taking your money when you lose on a stock sale. Instead, they're doing independent transactions with the market and have just as much of a chance to lose or be wrong on their trade as investors who own the stock.