On August 6, 2026, more than 900 million SpaceX shares became eligible for public trading, more than doubling the company’s free float just weeks after its historic IPO. SpaceX priced the offering at $135 per share, selling 555,555,555 Class A shares and raising approximately $75 billion before any overallotment. The IPO represented less than 5% of the company’s outstanding equity, leaving most shares with existing investors and insiders, including employees and executives such as Elon Musk. The release allowed early investors and employees to sell pre-IPO holdings, potentially adding pressure to a stock that had already declined significantly.
SpaceX shares (SPCX) fell nearly 14% on Wednesday, marking the second-worst trading day in the company’s brief public history. The closing price of $108.27 per share was about 50% below the record high reached on June 16 and 20% below the IPO price of $135. The decline followed the company’s earnings report, which disclosed large spending on artificial-intelligence projects as investors weighed the prospect of more shares entering the market.
The August release of up to 911.5 million shares was described as SpaceX’s largest early unlock to that point. Eligibility does not require holders to sell, but it increases the supply that could enter the market. The offering initially placed fewer than 556 million shares in public hands, making the newly eligible tranche large enough to more than double the free float. Market analysts cited by CNN pointed to the combined effect of potential new supply and financial disclosures as a source of heightened volatility. Employees and early investors, many of whom acquired shares before the IPO at prices below the public offering price, can realize gains or hold their shares in anticipation of future growth.
SpaceX’s prospectus set out a staggered lock-up schedule instead of a single conventional 180-day expiry. The timetable combines calendar-based releases with windows linked to quarterly earnings, including tranches of roughly 319 million shares at specified milestones on days 70, 90, 105, 120, 135 and 180, subject to the prospectus terms. Elon Musk’s holdings reportedly remain restricted for 366 calendar days after the IPO. The company has 7.571 billion Class A shares, primarily held by employees and investors, and nearly 6 billion Class B shares, mostly controlled by Musk and senior executives. The current unlock is one of several potential releases, while Musk’s shares remain locked for a year after the IPO.
The next major scheduled release was reported for October 22, when up to 1.3 billion shares could become eligible for sale, about 28% of shares subject to the 180-day lock-up and more than the August tranche. CNBC reported that SpaceX’s October 20 third-quarter results showed 161% year-over-year revenue growth and quarterly AI revenue of $7.56 billion, up from $813 million a year earlier. Capital expenditure reached $19.6 billion, with more than $16.4 billion committed to AI. The company called its AI operation “Super Intelligence,” and CNBC described AI as SpaceX’s largest business. Shares reportedly rose about 8% in extended trading after the results, leaving the potential unlock as a separate source of supply after the post-earnings move.
The increase in publicly available shares also affects SpaceX’s position in major stock indexes. The company joined the Nasdaq 100 earlier this summer with a weighting of about 1%. Its weighting could rise above 3.5% after the index’s September rebalance, depending on share-price performance. Because the Nasdaq 100 adjusts components based on market value and free float, changes in the number of shares available to trade matter to index-tracking funds. Institutional and individual investors also watch those changes.
Market participants note that a surge in eligible shares can temporarily weigh on prices, while business performance and leadership remain central to longer-term valuation. The scale of SpaceX’s AI investment adds another dimension: reported quarterly capital spending of $19.6 billion, including more than $16.4 billion for AI, makes the funding and returns from that expansion relevant alongside the lock-up calendar. The market impact of each release will depend on actual sales, not simply the number of shares that become eligible.
Lock-up expirations are a common IPO feature intended to prevent a sudden influx of insider shares from destabilizing trading. SpaceX’s staggered model creates several potential liquidity windows instead of concentrating them at one conventional expiry. Further releases were reported around the 135th calendar day after the IPO, including approximately 328.4 million shares, with more availability tied to the 180-day timetable. The October release was so not the final potential liquidity event. As the free float expands, changes in SpaceX’s share price may carry greater weight in market indexes, while each new tranche gives employees and early investors another chance to sell or maintain their exposure.
