SpaceX Loses $400 Billion in Single Day: Market Collapse

SpaceX, Elon Musk’s aerospace and artificial intelligence company, suffered an unprecedented single-day market capitalization loss of approximately $400 billion on June 22, 2026, as shares of SPCX plunged 16.4% to close at $154.60. The collapse marks the second-largest single-day corporate value destruction in history, exceeded only by Nvidia’s $600 billion loss on January 27, 2025, according to the Financial Times.

The crash came just ten days after SpaceX’s historic IPO on June 12, 2026, which had briefly made Elon Musk the world’s first trillionaire. The stock had surged 19.2% on its debut day, closing at $160.95, and reached an all-time high of $225.64 on June 16 before the reversal began.

A Historic IPO Turned Sour

SpaceX priced its IPO at $135 per share on June 11, raising approximately $75 billion — later expanding to $85.7 billion with overallotment — making it the largest IPO in history. The company began trading on the Nasdaq under ticker SPCX on June 12, and its market capitalization quickly surpassed $2.1 trillion, making it the sixth-largest publicly traded US company.

According to CryptoBriefing, the stock’s initial surge was fueled by a combination of hype and scarcity: only 4% to 5% of SpaceX’s total shares are in the public float, with approximately 95% locked up at IPO. This thin float amplified price moves in both directions — powering the initial climb from $135 to $225 and magnifying the subsequent decline.

At $154.60, the stock remains 14.5% above the $135 IPO price, meaning early investors who bought at the offering are still in the green. However, anyone who purchased shares after the first day of trading is now sitting on paper losses.

Multiple Forces Behind the Selloff

The $400 billion evaporation was not triggered by a single catastrophic event but by several converging pressures, as reported by TechTimes.

First, profit-taking on the thin float played a major role. With such a small percentage of shares available for trading, even ordinary selling pressure produced outsized price moves. Analysts described the decline as “a valuation and market-structure event, not an operational one,” noting that the underlying business had not deteriorated.

Second, SpaceX confirmed plans to issue senior unsecured notes to raise additional capital and refinance existing debt. The Economy Middle East reported that proceeds would help repay a $20 billion bridge loan taken to refinance debt from Musk’s AI company xAI, acquired in February 2026. The announcement surprised investors because SpaceX also disclosed $100.8 billion in cash and cash equivalents.

Third, SpaceX’s announcement on June 16 that it would acquire Anysphere (Cursor AI coding assistant) for $60 billion in an all-stock transaction created dilution concerns. Morningstar analyst Nicolas Owens valued SPCX at just $62 per share — well below market price — describing the deal as carrying approximately 3.4% dilution.

Fourth, broader macroeconomic pressures weighed on the stock. The Federal Reserve held rates steady on June 17, but markets expect a rate hike in September to combat inflation, making risk assets like growth stocks less attractive. The yield on two-year US Treasury notes rose to its highest level in over a year.

The Paradox of Investment-Grade Ratings

Remarkably, on the same day shares fell, Moody’s (Baa1), Fitch (BBB+), and S&P (BBB) all assigned SpaceX investment-grade credit ratings. This paradox highlights the fundamental difference between equity and debt markets: bondholders focus on Starlink’s cash flow stability, while equity investors price future growth potential.

S&P noted in its rating rationale that SpaceX will likely need to raise additional capital through debt and equity markets and projects negative free cash flow through 2029. The credit agencies flagged governance risks tied to Musk’s 79% voting control and the company’s reliance on a single individual.

What Comes Next

SpaceX’s current market capitalization of approximately $2.04 trillion makes it the world’s seventh-largest publicly traded company, just behind Taiwan Semiconductor Manufacturing at $2.06 trillion. The stock’s $135 IPO price may act as a psychological floor; a break below could trigger further selling.

Looking ahead, several critical events loom. The $20 billion bond offering will test institutional appetite for SpaceX debt. Lock-up expirations starting in late July 2026 could add significant supply to the market. SpaceX’s first public earnings report, scheduled for August 6, will reveal the true costs of integrating xAI and Cursor. With analyst price targets ranging from $62 (Morningstar bear) to $401 (Arete Research bull), the battle over SpaceX’s valuation is far from settled.

As the Financial Times noted, the $400 billion hit ranks as the second-biggest one-day loss suffered by any company — a stark reminder that even the most celebrated market debuts can face turbulent landings.