Elon Musk has never been one to shy away from a battle with short sellers, and the stage is now set for a historic showdown over SpaceX (NASDAQ: SPCX). With SpaceX slated to report its highly anticipated quarterly results tonight, August 4, after the closing bell, Wall Street is bracing for massive volatility. Despite the immense risks of betting against a Musk-led enterprise, short sellers have steadily added to their positions as the stock has trended downward from its post-IPO highs. On one side, highly convicted short sellers have tied up 95% of the borrowable float, betting that SpaceX's first public earnings will disappoint. Related articlesElon Musk issues ominous warning as SpaceX short interest hits danger zoneAbercrombie exploring options for China business - reportProcter & Gamble to acquire Thorne for $3.8 billion, CEO says