SpaceX completed the largest IPO in history on June 12, 2026. Shares priced at $135, the offering raised approximately $75 billion, and the company entered public markets valued at $1.77 trillion. Four trading days later, the stock peaked at $225.64. Then it dropped 35 percent in six sessions, touching $147.11 on June 23. Retail investors who bought after Day 1 were underwater.
On June 22, ten days after the IPO, SpaceX announced a $25 billion bond offering. Demand reached $89 billion, 3.5 times the offering size. Yields came in between 5.35 and 6.65 percent. The bonds settle June 26. The proceeds retire a $20 billion bridge loan.
The bridge loan exists because of a merger. In early 2026, SpaceX absorbed xAI, Musk's artificial intelligence company, along with roughly $17.5 billion in junk-rated debt carrying interest rates as high as 12.5 percent. In March, a Goldman Sachs-led syndicate arranged the $20 billion bridge loan at 4.58 percent to replace that debt. The bridge loan carries an 18-month term with a hard maturity in September 2027 and a requirement that IPO proceeds be used for repayment within six months of listing.
Read that chain again. xAI junk debt at 12.5 percent became a bridge loan at 4.58 percent, which became investment-grade bonds at 5.35 to 6.65 percent. Each step lowered the cost of capital. The IPO was the step in the middle that made the final step possible.
The Rating
Six days after listing, all three major agencies issued investment-grade ratings: Moody's at Baa1, Fitch at BBB+, S&P at BBB. The speed was unusual. The basis was not.
All three agencies anchored their ratings on the same division: Starlink. The satellite internet business generated $11.4 billion in revenue in 2025, accounting for 61 percent of SpaceX's total sales. It was the only profitable unit, producing $4.42 billion in income while the rocket-launch division lost $657 million and xAI posted a $6.35 billion deficit. Starlink's EBITDA margin runs at 63 percent, up from 41 percent in 2023, far exceeding the 20 percent typical of traditional satellite operators.
The consolidated picture is different. SpaceX posted a net loss of $4.28 billion in Q1 2026 with negative 45 percent margins and a $41.3 billion accumulated deficit. Goldman Sachs projects negative $105 billion in cumulative free cash flow through 2029. S&P does not expect positive free cash flow until 2031.
Investment-grade bonds backed by negative free cash flow projections through 2029. The rating rests entirely on the belief that Starlink's recurring revenue, subscription-based with utility-grade margins, can service the debt regardless of what happens to rockets or AI. The agencies are not rating SpaceX. They are rating Starlink.
The Divergence
This explains the credit-equity split. On the day SpaceX announced its bond sale, the stock fell 16 percent. Over the same period, the bond order book filled to $89 billion. Credit investors and equity investors are pricing the same corporate entity to opposite conclusions because they are looking at different cash flows.
Bond investors see Starlink's $11 billion in annual revenue, its 63 percent margins, and its predictable subscription base. They see a utility with a moat. The bonds require only that Starlink keeps generating enough cash to cover interest payments. At 5.35 to 6.65 percent yields on $25 billion, that is roughly $1.3 to $1.7 billion in annual interest, well within Starlink's $4.4 billion income.
Equity investors see the consolidated entity: negative $105 billion in projected free cash flow, a loss-making AI division, a capital-intensive launch business, and $25 billion in new debt layered onto a $100 billion cash pile that will be spent faster than it accumulates. The stock at $154, down from $225, reflects the equity claim on whatever is left after Starlink services the debt and xAI burns through capital.
Both prices are correct. They are prices for different companies packaged inside the same ticker.
The Mechanism
The approximately 20 percent retail allocation in SpaceX's IPO was the largest in history. Individual investors bought $369.8 million of SPCX in the first three trading sessions. Less than 5 percent of total shares were available for public trading. No shares could be borrowed for short selling because the lockup prevents lending.
This structure created a one-directional market during the first week. With only momentum buyers and no shorts providing price discovery, the stock ran from $135 to $225 on pure demand pressure. The same illiquidity that amplified the run-up amplified the crash when sentiment reversed. Four sessions erased $600 billion in market capitalization.
The question is whether the retail allocation was generosity or engineering. SpaceX needed to clear a $75 billion offering to build the balance sheet that credit agencies would rate investment-grade. Retail participation, with its herd dynamics and lower sensitivity to valuation, provided the activation energy. Institutional investors, who would later buy the bonds, could price the equity at a distance. The retail allocation made the IPO work. The bonds made the refinancing work. The IPO served the bonds.
The lockup schedule confirms the priorities. Twenty percent of insider shares unlock after Q2 2026 earnings in late July, with employee equity releasing in 7 percent increments every two to three weeks thereafter. Each unlock adds supply to an already illiquid stock. The equity holders face dilution from lockup expiration while the bond holders sit on 3.5 times oversubscribed paper backed by Starlink's cash flow.
SpaceX raised $75 billion in equity to access $25 billion in debt. The IPO was not the destination. It was the on-ramp.