Short sellers targeting SpaceX shares have accumulated an estimated $15.5 billion in paper profit since the company's mid-June initial public offering, as its stock price slipped below its debut price. SpaceX shares briefly fell to $149 on Tuesday, marking a nearly 34% slide from their peak.

The significant paper profits for short sellers and the decline in SpaceX's stock price below its IPO level highlight investor skepticism regarding the company's high valuation and potentially debt-funded spending, contrasting with strong retail and institutional interest.
Short sellers targeting SpaceX shares are sitting on an estimated $15.5 billion in paper profit since the company's mid-June initial public offering, as its stock slipped below the IPO price. According to data from analytics firm Ortex Technologies, SpaceX shares fell to a new low of $115.26 on Wednesday, down from a post-IPO high of $225.64. Ortex co-founder Peter Hillerberg noted that short sellers are not taking profits and are instead increasing their bearish bets. Approximately 56% of SpaceX's free float shares were out on loan. SpaceX CEO Elon Musk commented that firms maintaining significant short positions in SpaceX over time have a very low survival probability. The company's valuation makes it a target for skeptics, but retail and institutional interest, along with Musk's history of opposing short sellers, make bearish bets risky.