SpaceX Short Sellers Are Getting Smashed — But Don't Chase the Stock Here

SpaceX shares jumped 15.8% on Thursday, closing at $133 on a $30.4 billion trading day — the kind of single-session explosion that forces bears to cover or bleed. Short sellers, who had piled into roughly 30% of the tradable float and accumulated an estimated $15.5 billion in paper profits over the prior month, are getting exactly what the headline writers love: a squeeze.

But before the rush to buy into a "short sellers getting smashed" rally, it's worth asking whether the fundamentals actually justify the enthusiasm — or whether this is a technical snap-back in a stock that's still grappling with a $1 trillion valuation hangover.

The Short Thesis Was Built on Real Concerns

SpaceX priced its record $86 billion IPO at $135 per share on June 12, 2026. The stock quickly climbed above $225, briefly surpassing Amazon in market capitalization, then spent the next two months working its way back down. By early August, it had fallen to a closing low near $105.

The bears had three arguments: no path to profitability, astronomical spending, and an imminent lockup deluge. None of these are fabrications. On a trailing basis, SpaceX carries a negative P/E (the company lost $4.9 billion in 2025), free cash flow margins sit at -145%, and trailing revenue multiples exceed 76x. The lockup expiration that began August 6 freed 911 million shares — more than triple the original IPO volume — doubling the public float from about 5% to nearly 12%. Elon Musk's personal 42% stake remains locked until June 2027, but eight more unlock tranches follow over the coming months.

The short sellers weren't wrong to worry about supply pressure. They misread what was happening under the hood.

The Fundamentals Haven't Broken

SpaceX's first earnings report as a public company, released August 4, showed a company growing at a clip that makes the bear case harder to sustain.

Revenue hit $7.8 billion in the second quarter, beating the consensus estimate of $6.9 billion and up 92% year-over-year. The net loss narrowed to $541 million, roughly half the $1 billion loss posted a year earlier. Starlink — the satellite internet operation serving 12 million subscribers across 160 markets — posted $1.66 billion in operating profit and remains the only segment to reach operating profitability.

Then there's the AI segment, the part of the business that spooked investors the most. Revenue came in at $2.56 billion, up 247% year-over-year, with $14.1 billion in new cloud service contracts signed during the quarter alone. The segment's operating loss of $1.26 billion was significantly better than the $2.4 billion consensus expected. Management reported adjusted EBITDA profitability in the AI unit ahead of schedule, and CFO Bret Johnsen flagged "less than a one-year payback" on some AI compute investments.

The company holds approximately $100 billion in cash and marketable securities against $65.5 billion in total debt, leaving a net cash position of roughly $60 billion. That balance sheet can sustain the spending ramp.

What Broke Wasn't the Business — It Was the Capex Shock

Here's where the earnings report turned into a sell-off. Total capital expenditures hit $18.4 billion in the second quarter, driven by $15.8 billion in AI infrastructure spending — more than double the $7.7 billion spent in the first quarter. Management guided for similar spending levels in the third and fourth quarters, implying annualized capex near $65 billion versus Wall Street's $50 billion estimate.

Investors interpreted this as waste. The more charitable reading, and the one J.P. Morgan analyst Doug Anmuth went with, is that this is the infrastructure buildout for a business he projects could generate $100 billion in AI revenue by 2027. Anmuth raised his price target from $225 to $240 and maintained an Overweight rating, pointing to SpaceX's "extreme vertical integration" across launch, satellite, and computing layers as a moat most competitors can't replicate.

The difference between these two readings determines everything. If the AI spending is an investment in a $28.5 trillion total addressable market that SpaceX can meaningfully capture, the capex looks aggressive but defensible. If it's an open-ended money pit chasing a narrative, the bears were right all along.

The evidence so far leans toward investment rather than waste. Revenue in the AI segment tripled year-over-year. The company signed $14.1 billion in new contracts in a single quarter. Adjusted EBITDA turned profitable ahead of schedule. These aren't the hallmarks of a business burning cash with no traction.

But the Valuation Gate Is Strained

This is where the enthusiasm needs a circuit breaker. SpaceX's market capitalization sits at $1.75 trillion. Annualized from Q2 revenue, that's roughly 56 times forward sales. Trailing EV/EBITDA reads at 320x. Free cash flow is deeply negative.

No matter how compelling the growth trajectory, those multiples price in years of flawless execution. A 92% revenue growth rate is exceptional — but it's being applied to a $7.8 billion quarterly base, not $100 billion yet. The gap between where the company is and where the valuation assumes it'll be is enormous.

The broader analyst consensus reflects this tension. The average 12-month price target across 31 analysts is $234, implying the stock still needs to nearly double from where it was trading before Thursday's pop. Twenty-three analysts rate it a Buy, six a Hold, and two a Sell. Piper Sandler cut their target to $140 and went Neutral, explicitly citing valuation, elevated capex, and lockup risk. Wells Fargo trimmed their target to $215 from $230 over the same capex concerns.

The Short Covering Rally Isn't a Thesis Confirmation

The technical picture adds another layer of caution. Thursday's 15.8% surge on $240 million shares in volume is textbook short-covering behavior. When 30% of a float is sold short, a positive catalyst — or even relief from capitulation — triggers a cascade of covers that pushes the price higher independently of fundamental conviction. The stock has now bounced roughly 23% over five days, from the $105 area back to $133.

That's the kind of move that makes the setup look attractive. It's also the kind of move that traps retail buyers who chase into a stock still sitting right at its IPO price of $135, with months of lockup selling ahead.

So What's the Risk/Reward?

The market has arguably baked in a doomsday narrative around SpaceX — treating the company's spending like an existential threat rather than the capital investment cycle of a business growing revenue 92% year-over-year with a $100 billion cash fortress. The short sellers who loaded in during the decline are now getting punished for it.

But the snap-back rally doesn't automatically mean the stock is ready for conviction buying. At $133, right at the IPO price, with 56x forward revenue multiples and a series of lockup tranches still to come, the risk/reward isn't as clean as the "short sellers getting smashed" headline implies.

The fundamental case for SpaceX remains intact: Starlink is profitable and scaling, the AI segment is generating real revenue with real contracts, and the balance sheet can sustain the investment cycle. The moat — physical satellite infrastructure, launch dominance, and now vertical integration into AI compute — hasn't cracked under pressure.

I don't think investors need to chase this rally. The better risk/reward is likely on a deeper pullback once the initial lockup overhang works through and the market digests whether Q3 capex really does stay at $18+ billion per quarter. If the stock gives back the bounce and tests the $105-$115 zone, the setup becomes considerably more compelling.

I would reassess the bullish case if Starlink's operating profitability deteriorates, if AI contract signing slows meaningfully, or if the capex trajectory fails to generate the revenue returns management is projecting. Until then, the disconnect between a 92% growth rate and a beaten-down stock price is real — but patience, not chasing, is the right posture.