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SpaceX faces $25B in short interest while Musk warns shorts are 'unlikely to survive'

July 19, 2026 · 10 min

Hugo Vance & Lila Soto

SpaceX short sellers hold roughly 185 million shares — about 30% of float — worth $25 billion as of mid-July 2026, booking up to $8.7 billion in paper profits after SPCX fell from its $225.64 intraday peak to near the $135 IPO price. Elon Musk's six-word warning that shorts are 'unlikely to survive' may pre-load a retail rally before any covering wave forces an exit.

SpaceX went public on Nasdaq under the ticker SPCX on June 12, 2026, pricing its IPO at $135 per share and raising approximately $75–$86 billion in what became a record-breaking debut. The stock initially surged to a post-IPO high of around $225.64, briefly pushing SpaceX's market capitalization past $2 trillion and making it one of the world's most valuable companies.

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About this episode

SpaceX went public on June 12, 2026, raised a record $75–$86 billion, briefly crossed a $2 trillion market cap — and then started sliding. By mid-July, short sellers had built a $25 billion position, roughly 29–30% of the public float, and were sitting on $8.7 billion in paper profits. Elon Musk responded with six words: 'unlikely to survive.' This episode doesn't treat that as a simple story of bears versus bulls. It asks a harder question: what happens when a trade that's working on price becomes structurally fragile because of how fast it was built? The short position went from 40 million to 185 million shares in under three weeks — a pace that analysts at S3 Partners and Ortex flagged as unusually fast for a newly listed stock. Meanwhile, borrow utilization sits at just 39%, meaning the mechanical preconditions for a forced squeeze don't exist yet. What does exist is a very large, very concentrated bet sitting on top of a tiny float. The bears caught real things: a scrubbed Starship test, a large bond sale, unresolved questions about Starlink revenue. Their thesis has substance. But $8.7 billion in paper profits is a trigger, not a safe harbor — and Musk's public warning, whatever else it is, has already told the world exactly where the tripwire is. The episode works through what the collision between those two facts actually looks like.

Frequently asked

How large is the short position against SpaceX stock?

SpaceX short interest reached approximately $25 billion by mid-July 2026, representing roughly 30% of the public float. According to S3 Partners analyst Matthew Unterman, short sellers added about 145 million shares — growing from 40 million to 185 million shares — in under three weeks, making it one of the fastest short buildups for a newly public company.

How much have SpaceX short sellers made so far?

SpaceX short sellers had accumulated between $5 billion and $8.7 billion in paper profits by mid-July 2026, after SPCX fell from an intraday peak of $225.64 back toward its $135 IPO price — and briefly as low as $124. Those gains are unrealized until shorts exit, and a large position makes a quiet exit structurally difficult.

Why did so many short sellers pile into SpaceX so quickly after its IPO?

SpaceX short sellers cited concrete execution problems: a scrubbed Starship test flight, a $25 billion bond sale adding leverage ahead of insider share unlocks, and unresolved Starlink revenue figures. SpaceX listed on Nasdaq on June 12, 2026 at $135 per share, and the short position grew from $4.5 billion on June 15 to $25 billion within three weeks.

Is a short squeeze possible with SpaceX stock?

A mechanical SpaceX short squeeze is not yet structurally loaded — Ortex data shows borrow utilization at only 39%, meaning ample shares remain available to short. However, with roughly 30% of float shorted and $8.7 billion in paper profits, a voluntary covering wave triggered by a positive catalyst — such as a Starship milestone or a Starlink revenue disclosure — could still produce a violent price move.

What did Elon Musk say about SpaceX short sellers?

Elon Musk warned SpaceX short sellers they are 'unlikely to survive' — a six-word public statement directed at a global audience. Analysts note the warning's primary function is cultural rather than informational: it pre-positions retail investors to rally on any positive SpaceX catalyst, mirroring the strategy Musk used against Tesla short sellers for years.

Grounded in 12 sources
SpaceX seeing interest from short sellers, but most afraid to go against Musk · cnbc.com
Short sellers load up against SpaceX as stock drops below ... · cnbc.com
SpaceX Stock Sinks Below IPO Price: The Hype Is Over? · finance.yahoo.com
Short sellers notch $8.7 billion profit as SpaceX shares dip ... · finance.yahoo.com
Short sellers boost bets against SpaceX and it's already costing them · reuters.com
SpaceX short selling bets increase after post-debut share sell-off - The Globe and Mail · theglobeandmail.com
SpaceX Short Sellers Are up $5 Billion As the Stock Goes Into Reverse - Business Insider · businessinsider.com
Musk Says Shorts Won't Survive-but 30% of SpaceX Float Is Already Bet Against a $135 Floor · ainvest.com
Traders bet against SpaceX following IPO debut as short interest hits 29% of float · cryptobriefing.com
SpaceX Falls Below IPO Price: Short Sellers Pocket $5 Billion as $1 Trillion in Value Evaporates — BigGo Finance · finance.biggo.com
Short Sellers Are Having a Field Day Betting Against SpaceX as Shares Continue to Slip · futurism.com
SpaceX shares and bonds face rising short bets after record IPO · tradersunion.com
Read transcript

Hugo Vance: You sent me a message last night that just said 'the shorts are up $8.7 billion and Musk is threatening them.' I read it twice.

Lila Soto: Because those two things shouldn't coexist, right? Like, if you're winning by that margin you shouldn't also be nervous. But I think they are nervous. Today we're getting into exactly that — the $25 billion short against SpaceX and whether the bears who built it actually understood what they were stepping into.

Hugo Vance: Name the facts for me first. I want the shape of it.

Lila Soto: Okay — so SpaceX, ticker SPCX, lists on Nasdaq June 12, 2026, priced at $135. Raises somewhere between $75 and $86 billion, which is a record. Stock runs to $225.64 intraday, briefly — briefly — tips the market cap past $2 trillion. Then it comes apart. Drops below $135. Trades as low as $124. And short sellers who were early are sitting on $5 to $8.7 billion in paper profits.

Hugo Vance: And Musk responds by telling them they're unlikely to survive.

Lila Soto: Six words. That's the whole warning. And I kind of think the interesting question isn't whether the shorts are right on valuation — they might be — it's whether Musk just turned a financial trade into something personal enough that the math stops being the only thing that matters.

Hugo Vance: You see, that is a very different kind of risk than the one most fund managers price.

Lila Soto: Yeah, and that risk has a shape to it now. Because what complicates the 'shorts are winning' story is how fast this position was built. It's not a slow thesis. S3 Partners, Matthew Unterman specifically, flagged it as one of the fastest short buildups for a newly public company. Forty million shares to roughly 185 million shares. Under three weeks.

Hugo Vance: One hundred and forty-five million shares added. In under three weeks.

Lila Soto: Which in dollar terms is $4.5 billion on June 15th becoming $25 billion by mid-July. So — okay, here's how I think about it. Shorting a stock is like betting your neighbor's new restaurant will fail. You borrow a chair, sell it, hope to buy it back cheaper when the place closes. Simple enough. But imagine every food critic in the city doing that same trade in the same two weeks. That's not independent analysis. That's everyone following everyone else through the door.

Hugo Vance: Yes. And Peter Hillerberg at Ortex described the pace as unusually fast for a newly listed stock. That phrase is doing real work. These are people who track short interest professionally. 'Unusually fast' from them is not mild language.

Lila Soto: So is this conviction or just — everyone arriving at the same door at once?

Hugo Vance: Well, here's the mechanical reality check. If this were genuine squeeze territory — the kind of structural pressure that forces a covering panic — you'd expect utilization to be pinched. Scarce supply. But Ortex shows utilization at thirty-nine percent. Ample lending supply. The shares to borrow are simply there. So the precondition for a mechanical squeeze doesn't exist yet. What exists is a very large, very fast, very concentrated bearish position built on — I want to be precise here — on plentiful ammunition.

Lila Soto: Thirty-nine percent. I mean, with $25 billion shorted I would've assumed the borrow market was basically dry.

Hugo Vance: You see, that's exactly what most people assume. And it matters because it separates conviction from stampede. A stampede doesn't need scarcity to keep running. It just needs the next person to follow.

Lila Soto: So the bears piled in at speed, the squeeze pressure isn't mechanically loaded yet — and now they're waiting on SPCX to prove them right. That's a very uncomfortable position to sit in.

Hugo Vance: Uncomfortable, yes — but here's where I'd actually push back on the stampede framing as a verdict. Because the stampede argument, if you follow it all the way through, might actually vindicate the shorts rather than indict them.

Lila Soto: Oh — wait, how?

Hugo Vance: Well. In the early post-IPO period, only roughly forty million shares were shorted — five to seven percent of float. Many potential short sellers held back. Specifically out of fear of betting against Musk. That's documented.

Lila Soto: Right — but the part that doesn't fit your stampede read is that those 145 million shares that *did* pile in? They came in *after* the fear was already public. After Musk was already doing the 'unlikely to survive' thing. So the people who added weren't ignoring the risk. They walked straight into it. That's not a stampede. That's conviction in disguise.

Hugo Vance: Mm. That is a meaningful distinction.

Lila Soto: And the catalysts were real, I mean — actually real. A scrubbed Starship test flight. That's not a rumor, that's a named execution failure on the rocket that's supposed to justify half the valuation thesis. Then you add a $25 billion bond sale, which loads leverage onto the company right as insider share unlocks are approaching. Oh, and Starlink's revenue trajectory? Government contract specifics? Genuinely unresolved. Nobody actually knows those numbers yet.

Hugo Vance: You see, that's the kernel. The shorts caught real execution problems. Whether they've proven the entire $2 trillion peak was fiction — that's a different claim entirely.

Lila Soto: Picture it — 9:47 a.m., a portfolio manager has S3 Partners data on screen, SpaceX at $128, she's up $340,000 on her position, and Musk just retweeted some retail account saying 'shorts r fuk.' She scrolls past it. Not because she's not scared. Because the scrubbed Starship test is still sitting right there in her notes.

Lila Soto: And what we haven't gotten to yet — the part that makes all of this stranger — is that the $340,000 gain and Musk's warning might both be right at the same time, and what that collision actually looks like.

Hugo Vance: Both right at the same time — yes, that's the actual collision. And it has a very specific mechanical shape. The $8.7 billion in paper profits is not a safe harbor. It's a trigger waiting. Because that profit is a reason to *exit*. If enough shorts take the gain simultaneously, you get a covering wave — not forced by scarcity, but by rationality. Thirty percent of float unwinds voluntarily. That's still a violent move.

Lila Soto: Oh — so the squeeze doesn't need the utilization to tighten. It just needs everyone to decide they've won enough.

Hugo Vance: Precisely. And then you add the float problem. SpaceX raised $75 to $86 billion but the public float is structurally tiny relative to that scale. Small float, large short position — any genuine positive catalyst amplifies *violently*. A successful Starship milestone. A Starlink revenue number that resolves the uncertainty Lila just named. Those aren't abstract. They're dated events that could arrive before insider unlocks do.

Lila Soto: And that's where Musk's warning actually — mm, I want to be careful here — it's not a *market signal* exactly. It's more like he's pre-loading the retail rally. So when the catalyst lands, the coordination is already in place.

Hugo Vance: That is the defensible claim. His 'unlikely to survive' — six words to a global audience — its primary function is cultural. It's not conveying material information about SpaceX's operations. It's rallying retail believers so they're positioned when the detonator fires.

Lila Soto: He did exactly this with Tesla. The shorts weren't wrong on Tesla fundamentals for years. They just couldn't survive *him*.

Hugo Vance: Indeed.

Lila Soto: So the calibrated version — what actually holds up — is that shorts are winning round one on price, they caught real problems, the scrubbed Starship test is real. But they built a thirty-percent-of-float position inside a tiny float with $8.7 billion in profits that make them *fragile*, not strong. And Musk just told the world exactly where the tripwire is.

Hugo Vance: The trap isn't whether they're right. The trap is whether being right is enough — given the specific mechanics of what they've built, and who is on the other side of it.

Lila Soto: You know what — okay, I'll concede. They're not walking into a certain squeeze. They're walking into a performance. That's the thing. The $8.7 billion is real. The scrubbed Starship test is real. And none of that stops Musk from making the exit itself the spectacle.

Hugo Vance: Indeed. I started this thinking about the message you sent — '$8.7 billion in paper profits and Musk is threatening them.' I read it as a paradox. I'm not sure it is one anymore. Those two things coexist precisely because the profits are paper. You lock them in by exiting quietly. And there is no quiet exit. Not when six words to a global audience have already told everyone where the door is.

Lila Soto: Yeah. That's where I'll sit with this, I think. Mm — good conversation.

SpaceX faces $25B in short interest while Musk warns shorts are 'unlikely to survive' · Onpode