Trader Brian Jones on Twitter: "#Tesla is the No. 1 most shorted U.S. stock, with 24 million of its shares, or about 18% of its float, in the hands of short sellers, or those who bet a stock will fall in price." / Twitter

#Tesla is the No. 1 most shorted U.S. stock, with 24 million of its shares, or about 18% of its float, in the hands of short sellers, or those who bet a stock will fall in price.