SpaceX rose 6.14% to $114.92 on Thursday, August 6, the exact session when 911.5 million insider shares became eligible for sale for the first time since the company's June IPO. Then it kept climbing, surging another 15.97% to $133.27 on Friday, August 7, for a two-session gain of 23.09% from Wednesday's $108.27 close. A lockup expiry is the date on which restricted shares held by insiders and early investors become eligible to trade on the open market, and the standard fear around one is a flood of selling that overwhelms demand and drags the price down. That is not what happened here.
The market had been bracing for the opposite outcome for weeks. SpaceX had already fallen roughly 52% from its June high heading into Thursday, and Wednesday's session alone had knocked the stock down 13.61% to that $108.27 close after the company's maiden earnings print as a public company landed light on Starlink subscriber growth. Two catalysts turned that setup on its head instead of confirming it, and one of them has nothing to do with the lockup at all.
- Thursday's close: SpaceX rose 6.14% to $114.92 on volume of 252.7 million shares, up from Wednesday's 207.0 million, the day the insider selling window opened
- Friday's close: SpaceX surged 15.97% to $133.27 on volume of 237.4 million shares, the strongest single-session gain since the company's debut
- Two-session move from Wednesday's $108.27 close: +23.09%, erasing more than half of the prior week's drawdown in two days
- 911.5 million shares became eligible for sale on Thursday, more than doubling the freely tradable float in a single session
- The Terafab chip plant carries a $16.8 billion initial price tag, the first phase of a joint SpaceX-Tesla semiconductor complex announced the same week
The rest of this piece walks through what actually moved the stock across both sessions, why the selling pressure that everyone expected never showed up, and what would still need to happen before the next tranche of shares tests the same setup.
What Actually Happened Across the Three Sessions
The setup matters as much as the outcome, and the timeline is precise. SpaceX's maiden quarterly print as a public company landed Tuesday, August 4, after the closing bell, disclosing capital expenditures of $18.4 billion, including $15.83 billion tied to AI and xAI infrastructure, alongside Starlink subscriber growth of 12 million against a 12.19 million estimate. Wednesday, August 5, was the first full trading session to react to that print, and it reacted badly. The stock fell 13.61% to close at $108.27, an all-time low for the newly public company, as investors weighed heavier-than-expected AI spending against a subscriber miss.
|
Session
|
Close
|
Change
|
Volume
|
|
Wed Aug 5
|
$108.27
|
-13.61%
|
207.0M
|
|
Thu Aug 6
|
$114.92
|
+6.14%
|
252.7M
|
|
Fri Aug 7
|
$133.27
|
+15.97%
|
237.4M
|
Thursday was the day the market had circled for weeks. Our own coverage previewed it as the lockup expiry SpaceX had to survive, the moment 911.5 million shares held by early employees, venture funds, and pre-IPO investors first became eligible to trade. Instead of adding to Wednesday's rout, the stock gained 6.14% on volume that jumped to 252.7 million shares. Friday extended the move sharply, with the stock up 15.97% to $133.27, ending the week modestly above the level where it opened its insider selling window and only about 1.4% under its $135 offering price from June.
Why the Selling Pressure Never Showed Up
CNBC's framing on the day the window opened was that SpaceX had a test to pass, and by its own account the stock passed it. Selling from newly eligible holders came in lighter than the market had priced for, and that gap between feared supply and actual supply is what set up the second leg higher. When a stock has been sold down hard into an anticipated flood of new shares and the flood turns out to be a trickle, short sellers who positioned for the rout have to cover, and that covering itself becomes buying pressure layered on top of whatever demand was already there.
There is a mechanical reason the math worked this way. The newly eligible shares more than doubled SpaceX's public float, lifting the freely tradable portion of shares outstanding from roughly 4.9% to about 11.8%, per CNN Business's reporting the same week. A bigger float sounds like it should mean more selling capacity, and in theory it does. What it also means is that the stock had been trading on an unusually thin sliver of shares for two months, and thin floats cut both ways. The same scarcity that made SpaceX volatile on the way down made it equally volatile on the way back up once buyers, rather than sellers, showed up in size. IPO researcher Jay Ritter has noted that when actual lockup-driven selling comes in lighter than expected, the stock sometimes rises instead of falls, though the reverse is the more common outcome.
The Terafab Announcement Added a Second, Unrelated Catalyst
The lockup passing quietly was only half the story. On the same stretch of days, SpaceX and Tesla confirmed Grimes County, Texas, as the site for Terafab, a joint semiconductor manufacturing venture the companies first floated earlier this year. TechCrunch reported the initial investment at $16.8 billion, covering more than 100 million square feet of manufacturing space and roughly 3,000 jobs for the surrounding county, with Fox 7 Austin carrying the same figures locally.
The stated purpose is chip demand. SpaceX and Tesla have said their combined internal need for AI compute, spanning Starlink's ground and space infrastructure, Tesla's Optimus and Cybercab programs, and xAI's model training, runs past a terawatt of capacity on its own, more than the current global chip supply can service. Intel has separately signaled it will contribute to the project, an unusual arrangement for a company still working through its own foundry troubles. For a company like SpaceX that already sits at the center of the broader space economy, a multibillion-dollar bet on owning its own chip supply chain reads as a demand story about the next decade, and that framing is a large part of why Friday's gain outran Thursday's.
The Honest Lesson: Eligibility Is Not Selling
Our prior coverage of this lockup was deliberately careful about one word. It said up to 20% of restricted shares would become eligible for sale on August 6. It never said those shares would actually be sold, and that distinction turned out to be the entire story. Eligibility only describes what holders are legally permitted to do. Actually selling is a separate decision, and that gap is exactly what a trader has to price in when a lockup date approaches.
That gap is worth remembering the next time a headline treats a lockup date as an automatic sell signal. The general market fear ahead of August 6 was reasonable given how thin SpaceX's float had been and how far the stock had already fallen. It simply did not play out, because the holders who could sell largely chose not to, at least not in the volume the market had priced in.
What December's Step-Up Could Still Change
SpaceX's lockup schedule is staggered rather than a single cliff, with the tradable float stepping higher in stages toward roughly 40% of shares outstanding by December. Thursday's tranche passing without a rout tells you something about how this specific group of holders behaved on this specific date. It does not guarantee the same outcome when the next scheduled step arrives, particularly if the stock has run up meaningfully by then and gives longer-tenured holders a much stronger incentive to realize gains than they had at $108.
The setup to watch for is a step-up that lands after a sustained rally rather than after a sharp drawdown, since that is precisely the condition under which eligible holders have historically been most willing to sell. Traders positioning around SpaceX heading toward year-end should treat each scheduled increase as its own event with its own supply-and-demand balance, not as a repeat of a pattern that has only been tested once. Broader risk appetite matters here too, and the same week's July jobs miss reshaped September rate-hike odds, a move our Fed odds coverage tracks in full, and that backdrop was part of what carried SpaceX and the wider equity tape higher into Friday's close.
Frequently Asked Questions
What happens when a stock lockup expires?
Restricted shares held by insiders, employees, and early investors become legally eligible to trade on the open market for the first time. Eligibility does not require anyone to sell, and the actual market impact depends on how much of that newly tradable supply holders choose to release relative to existing demand for the stock.
Why did SpaceX stock go up instead of down after its lockup expired?
Selling from the 911.5 million newly eligible shares came in lighter than the market had priced for, and short sellers who had positioned for a rout had to cover, adding buying pressure on top of demand from a separate catalyst, the $16.8 billion Terafab chip plant announcement. The combination pushed the stock up 23.09% across the two sessions that followed.
What is SpaceX's Terafab chip plant?
Terafab is a joint semiconductor manufacturing venture between SpaceX and Tesla, confirmed for Grimes County, Texas, with an initial investment of $16.8 billion covering more than 100 million square feet of space and about 3,000 jobs. The stated goal is securing chip supply for both companies' AI and compute needs, which together are projected to exceed a terawatt of demand.
How many SpaceX shares are still locked up after August 2026?
The August 6 tranche released 911.5 million shares, but SpaceX's release schedule is staggered rather than complete, with the tradable float expected to climb toward roughly 40% of shares outstanding by December. Traders considering how to gain exposure to SpaceX shares should treat each future step-up as a separate event rather than assume it will behave like the one in August.
Bottom Line
SpaceX's lockup expiry passed without the rout the market had priced in, and a separate $16.8 billion chip plant announcement arrived in the same window to compound the move into a 23.09% two-session gain. If the stock holds above the $114.92 level where Thursday's session closed, the pattern reads as a genuine repricing rather than a short squeeze that unwinds on its own. If it slips back toward the $108.27 low with rising volume, that would signal the selling simply arrived late instead of never. SpaceX already proved twice in one week that it can rally hard on good news, and the more useful test now is the December float step-up landing at a price high enough to actually change how eligible holders behave. Watch volume on any pullback toward $114 before assuming the lockup story is fully behind it.
This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency trading involves substantial risk. Always conduct your own research before making trading decisions.
