Ten days after the largest IPO in history, SpaceX announced plans to issue $20 billion in bonds to repay a bridge loan* — and the stock fell 16% in a single session. Three trading days later, over $600 billion in market cap had evaporated. The numbers are dramatic. The logic behind the sell-off is worth understanding.
A bridge loan is short-term debt used to cover a gap before permanent financing is arranged. Think of it as a placeholder while you line up the real money. When SpaceX acquired xAI in February, it funded the deal with a $20 billion bridge loan. Last week’s bond offering was meant to replace that with permanent debt. Mechanically, this is routine — Moody’s, Fitch, and S&P all gave it investment-grade ratings.
So why did the market react so badly?
The problem wasn’t the bond. It was the sequence. SpaceX had just pulled $85.7 billion out of public markets in its IPO — the largest ever. The company holds $100 billion in cash. And yet, ten days later, it came back to borrow $20 billion more. To investors, that pattern reads as leverage peaking: a company spending as fast as it can raise, at the exact moment enthusiasm is highest.
There’s a principle in finance that explains the underlying logic: always spend other people’s money first. When cheap external capital is available, you take it before touching your own. Musk kept SpaceX’s $100 billion in reserve while loading the cost onto bondholders. Brilliant capital allocation, in theory.
The catch is that markets can read the same move two ways. On the way up, “borrowing to grow” sounds like confidence. On the way down, it looks like a company that can’t stop spending. This dynamic isn’t unique to SpaceX — it’s the same reason Oracle sold off on an earnings beat earlier this year when its capex guidance spooked investors. After three days and -23%, the market had made its call: demand from the IPO was exhausted. Everyone who wanted the stock already owned it. Sellers were back in control.
The bond market’s verdict this week will matter. Strong demand and tight spreads could ease the panic. Wide spreads would reignite it. Either way, the bill has arrived.
My take: Always spend other people’s money first.
Not advice. Just how I see it.