A Third Of Spacex’s Tradable Shares Are Now Betting Against It. The Squeeze Math Is Wild

The post A Third of SpaceX’s Tradable Shares Are Now Betting Against It. The Squeeze Math Is Wild appeared first on 24/7 Wall St..

Short sellers piled into SpaceX (NASDAQ:SPCX) faster than almost any newly public stock in recent memory, and the position is now enormous enough to matter to every long-term holder watching this thing settle. Roughly 31% of the free float, about 196 million shares, is sold short as of Tuesday, according to Ortex data reported by Reuters. That is the anchor number, and the arithmetic that flows from it is what makes the next few weeks interesting.

The 196 million share bet against SpaceX

A week earlier, the short position looked ordinary for a hot IPO. Short interest sat at roughly 83 million shares, or about 13% of the free float, before more than doubling in a matter of days. Ortex co-founder Peter Hillerberg called the buildup “extraordinary for a stock that has been public less than a month.” Extraordinary is the right word for it. Most stocks take years to attract that kind of bearish crowd. SpaceX did it in about three weeks after its June 12, 2026 Nasdaq debut.

Why so much conviction on the short side? The pitch writes itself. A $1.2 trillion market cap for a company that still books most of its revenue from launches and Starlink subscriptions is a tall order to grow into, and the post-IPO stock action gave bears an opening. Shares slipped as much as 23% in the days after the debut, and when the stock bottomed near $153 last week, shorts were up roughly $2.5 billion on paper.

Why the squeeze math is wild

Then came the rebound, and the paper gains vanished. Ortex now pegs the mark-to-market loss for shorts at about $760 million since the IPO. The mechanical part is what should get a long-term holder’s attention. Every $1 swing in SpaceX’s share price translates into roughly $200 million in gains or losses for the short book, per Ortex’s estimate. Think of it as a very large lever with a very short handle. Small moves in the stock produce very not-small moves in the P&L of the people betting against it.

The kicker is how cheap the trade still is to hold. The cost to borrow shares remains around 1%, which is unusually low for a stock this crowded on the short side. Cheap borrow means bears are not being financially bullied out of the position by carrying costs, so they can sit. But sitting only works if the stock cooperates. If it keeps grinding higher, the size of the short interest becomes its own accelerant. Hillerberg put it plainly. “(It’s) a lot of potential fuel if it tips into a squeeze.”

How the stock has traded

The stock has been a two-way fight. SPCX went public at $160.95 on June 12, 2026, and closed June 30 at $170.86, a 6.16% gain over its short trading history. The one-week move into June 30 was +9.45%, from $156.11 to $170.86. Today, July 1, the stock is down to $157 from that $170.86 close. That is the whipsaw shorts are living inside. Prediction markets are reading it in real time too. Polymarket assigned a 95% probability to SPCX finishing July 1 down, and a 75% probability the stock closes above $150 for the week of June 29.

The bull argument does not require you to fall in love with the valuation. It only requires you to respect the mechanics.

With 31% of the free float short and borrow essentially free, any sustained bid forces bears to buy back stock they do not own, which pushes the price further, which forces more covering. That is the loop.

Elon Musk has a documented history of public feuds with short sellers, which adds a wildcard the bearish spreadsheet cannot model. And the operating story is not a stub. Starlink now runs roughly 9,600 satellites and serves customers across 164 countries as of March 31, 2026, while Falcon rockets have flown at over a 99% mission success rate. None of that guarantees a squeeze. It does guarantee that if one starts, there is a real business underneath the fireworks.

What long-term holders should take from the setup

For a retirement-focused holder, the takeaway is to understand that at 31% short interest and $200 million of P&L per dollar of price movement, the near-term volatility in SPCX is mechanically manufactured by the short book. The composite sentiment score sits at 60.49, bullish with medium confidence.

The next real catalyst is the lockup, which Jim Cramer flagged as a meaningful trading variable when the IPO priced. Cramer noted Musk’s “ironclad” grip on SpaceX through his 94% ownership of Class B shares carrying 10 votes each. Until then, the bears own the risk of being right about valuation and wrong about timing. That is a bad combination when the fuel gauge reads full.

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