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Wall Street loves a good doomsday number, and $100 billion is about as good as it gets. Lockup expirations have sunk plenty of high-profile initial public offerings (IPOs) before, flooding the market with new supply just as sentiment turns shaky. Investors spent weeks bracing for that exact outcome with SpaceX (SPCX). 

Instead, SPCX stock climbed roughly 16% on Friday, Aug. 7, extending the Aug. 6 gain of 6% on heavy volume. Let's walk through why the crash everyone penciled in never showed up — and what it tells smart investors about SpaceX stock from here.

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On Thursday, Aug. 6, about 911.5 million insider shares — more than $100 billion worth at recent prices — became eligible for sale under SpaceX's staggered lockup schedule. That more than doubled the stock's tradable float overnight. On paper, this is the kind of supply shock that crushes a stock — more sellers, same number of buyers, lower price.

But that's not what happened. SpaceX closed up by more than 6% on Thursday, and Friday's follow-through gain confirmed it wasn't a one-day fluke. The reason is simple: Eligible to sell doesn't mean forced to sell. Many insiders have held shares for years at a low cost basis and had no urgent reason to dump them the moment the lockup lifted. Others are restricted by Rule 10b5-1 trading plans that stagger sales over months rather than dumping shares all at once. Markets also tend to price in a well-telegraphed risk before it arrives — SpaceX had already priced in the lockup during its 14% post-earnings slide on Wednesday, driven by concerns over a sharp rise in AI-related capital spending.

Granted, price action alone doesn't explain a move this sharp. Three forces did the heavy lifting.

Retail conviction. Individual investors have been net buyers of SpaceX every single trading day since the June IPO, and they stepped in hard during this week's post-earnings drop.

Analyst upgrades. Argus Research raised its rating to "Buy" from "Hold" on Friday, setting a $160 price target, implying meaningful upside from the close of $114.92 on Thursday.

Short covering. Reported short interest near 35% of the float meant that lighter-than-expected insider selling squeezed bears, amplifying the bounce as they rushed to close positions.

Put these factors together, and you get a technical bounce with real substance behind it — bargain hunters, upgraded price targets, and a supply overhang that turned out to be more theoretical than actual.

That said, sharp investors shouldn't mistake relief for resolution. SpaceX remains just below its $135 IPO price and more than 40% below its post-IPO peak near $226.

This week's unlock was only the first of several. Another roughly $800 billion in shares becomes eligible for trading through October, with the primary 180-day lockup not expiring until December and CEO Elon Musk's own stake locked until around June 2027. Each new tranche is a fresh test of whether demand keeps pace with supply.

In short, this past week's price action is a reminder that anticipated risks often matter less than how well the market has already priced them in. SpaceX cleared its biggest lockup test without a collapse, and retail buyers, analyst upgrades, and short covering did the rest. 

Regardless, the story isn't finished. Hundreds of billions in additional shares are still working their way toward eligibility, and rising AI-related capex remains a live question for free cash flow. Long-term investors should watch whether demand keeps absorbing that supply at each new unlock, not just cheer today's green candle. If it does, this past week may turn out to be less a fluke and more a preview of how SpaceX handles pressure going forward.

On the date of publication, Rich Duprey did not have (either directly or indirectly) positions in any of the securities mentioned in this article. All information and data in this article is solely for informational purposes. This article was originally published on Barchart.com