SpaceX's record $25 billion bond sale has incurred roughly $305 million in paper losses since trading began, as the longest-dated bonds widened as much as 0.28 percentage point past their issue spread. The rapid deterioration follows the company's $86 billion IPO and has stunned credit traders, who cannot recall a recent investment-grade deal weakening this sharply. The losses are driven by a $600 billion slide in SpaceX's equity value, weak technicals from upsized supply, and confusion over the company's risk profile, according to Impax Asset Management portfolio manager Tony Trzcinka.

The bond proceeds are largely earmarked to pay down a $20 billion bridge loan used to clear xAI's existing debt following a February merger. The AI unit posted a $6.4 billion operating loss last year, and Fitch Ratings has flagged dependence on Elon Musk as a "key rating constraint." While the Starlink satellite internet service is profitable, the Starship rocket program and xAI continue to burn cash rapidly.

Former SEC Chair Gary Gensler warned that a "great rebalancing" could hit SpaceX shares once the August lockup expires, potentially leading early backers to trim their exposure significantly. However, the equity side found support this week as FTSE Russell added SpaceX to its U.S. indexes, forcing passive funds to buy an estimated $3 billion worth of shares. This technical support has led Polymarket traders to assign a 66% chance that the company's valuation stays above $2 trillion at the end of the month.

SpaceX shares have fallen approximately 32% from their all-time high of $225.64 on June 16, prompting Polymarket bettors to sharply reduce the odds of the stock holding above its $135 IPO price by the end of June. Traders now believe there is only a 35% chance the stock will end the month higher than its offer price, down from roughly 80% just a week earlier. This shift reflects growing anxiety after the stock lost more than 18% over the past week, closing at $153 on Thursday.

Short Sellers Pile In

Short sellers have increased bets on further declines after the stock pulled back from its early highs. Data from Ortex Technologies indicates short interest rose to 13% of SpaceX’s free float from 8% in the prior session. "Short interest in SpaceX is building remarkably fast for a stock that has only been public for a couple of weeks," said Peter Hillerberg, co-founder of Ortex.

Valuation and Analyst Caution

SpaceX’s valuation has appeared stretched relative to other megacap companies because it remains unprofitable and has generated far less revenue than similarly valued technology giants. Todd Schoenberger of Crosscheck Management warned at the debut that whether the stock remained a winner "remains to be seen." KeyBank initiated coverage without a price target, noting that while SpaceX has major growth avenues, much of that potential may already be reflected in the valuation.

Upcoming Catalysts

Several catalysts remain for investors. SpaceX is expected to join the Russell 1000 after Friday’s close, with Nasdaq 100 inclusion expected July 6 and the IPO quiet period ending July 7. The company is scheduled to report second-quarter earnings on Aug. 17, providing the first official look at its public-market financials.