SpaceX completed the largest initial public offering in history on June 12, 2026, raising $75 billion at $135 per share and opening on the Nasdaq under the ticker SPCX. The debut delivered a 19.2 percent first-day gain, closing at $160.95 and pushing SpaceX’s market capitalisation above $2.1 trillion. That validated much of what analysts had anticipated, but the story did not end at the closing bell. With the greenshoe option exercised, upcoming Nasdaq-100 inclusion, and a staggered lockup expiry looming, investors are still navigating the most consequential post-IPO period any stock has ever faced.

Here is a full breakdown of how the debut unfolded, why it mattered, and what happens next.

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Why This IPO Has No Historical Parallel

The numbers alone demand attention. SpaceX raised $75 billion in a single offering, more than double the $29.4 billion raised by Saudi Aramco in 2019, the previous record holder for the largest IPO in history. The IPO priced the company at approximately $1.77 trillion at launch, placing it immediately among the six largest publicly traded companies in the United States.

For context, the company generated roughly $18.7 billion in revenue in 2025 and recorded a net loss of $4.94 billion. That means investors are betting heavily on future potential, particularly SpaceX’s ambitions in Starlink satellite connectivity, deep-space infrastructure, and what Elon Musk describes as a path to $1 trillion in annual revenue by 2030. Whether that trajectory justifies a $2 trillion valuation from day one is the central debate the market is now pricing in real time.

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Pre-IPO Demand: The Book Was Oversubscribed Nearly Four Times Over

Wall Street underwriters spent the week before listing marketing the offering to major institutional funds. The response was extraordinary. Total investor demand exceeded $250 billion against a $75 billion offering, leaving the deal nearly four times oversubscribed before a single share traded publicly.

SpaceX bypassed the traditional price-range process and went straight to a fixed price of $135 per share, a structural signal that the banks managing the deal had more than enough confidence in the book to skip the usual negotiation phase. Goldman Sachs led the syndicate, with Morgan Stanley, JPMorgan, Bank of America, Citigroup, Barclays, Deutsche Bank, RBC Capital, UBS, and Wells Fargo Securities acting as book-running managers.

Pre-listing futures contracts on decentralised trading platforms including Hyperliquid and Binance had hovered around $162.50 per share in the days before the debut. That 20 percent premium over the IPO price pointed to healthy but disciplined enthusiasm rather than irrational speculation, and the actual result aligned closely with those shadow markets.

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What Actually Happened on June 12

The opening trade was delayed by roughly 30 minutes beyond the standard 9:30 a.m. Eastern start, a pattern that has preceded other mega-listings including Meta and Alibaba, where the sheer volume of orders requires manual adjustment to the matching pool before a stable opening price can be established.

Morgan Stanley led the stabilisation process. The first trade came through at $150 per share, an 11 percent premium over the $135 IPO price, on 58 million shares. The stock climbed to an intraday peak of $176.52 before pulling back and closing at $160.95, a 19.2 percent gain on the day, settling SpaceX’s market capitalisation at approximately $2.1 trillion.

The three day-one scenarios outlined before trading proved instructive in hindsight:

The Retaliation Surge materialised in the morning session. Investors who had been locked out of the institutional allocation drove the stock from $150 to a $176.52 peak in the early hours of trading, producing exactly the sharp morning volatility that had been anticipated.

The Flip and Dump provided a partial counterweight. The afternoon pullback from the intraday high to a $160.95 close reflected institutional holders of allocated shares locking in initial profits, consistent with the pattern of profit-taking that follows large oversubscribed listings.

The Index Absorption story is still developing. Passive index funds tracking benchmarks that include SPCX will need to purchase millions of shares over coming weeks to match their tracking requirements, which is expected to provide a steady structural bid beneath the stock through the inclusion period.

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The Greenshoe Option: How the Total Raised Climbed to $85.7 Billion

As part of the original deal structure, underwriters held a greenshoe option allowing them to purchase an additional 83.3 million shares, representing 15 percent of the original offering, at the $135 IPO price for up to 30 days after listing.

That option has since been fully exercised. The total number of shares sold increased to approximately 639 million, and proceeds rose to around $85.7 billion, from the initial $75 billion. The greenshoe mechanism serves a dual purpose: it provides underwriters with a tool to stabilise the stock price in the weeks following the IPO by purchasing shares in the open market if the price falls, while simultaneously allowing the deal to expand if demand justifies it. In SpaceX’s case, the continued post-IPO strength triggered the full exercise of the option.

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Where SPCX Stands One Week Later

As of June 19, 2026, SPCX is trading at approximately $185 per share, up 37 percent from the $135 IPO price in one week. The 52-week range now runs from $135 to a high of $225.64. The market capitalisation has expanded to roughly $2.44 trillion.

The post-IPO trajectory was not without turbulence. The stock reached $225.64 at its peak before pulling back. A significant development also entered the picture: SpaceX announced the acquisition of Anysphere, the parent company of the AI coding tool Cursor, for $60 billion in an all-stock deal. The transaction implies roughly 3.4 percent shareholder dilution and sent the stock lower from its peak, with the price closing around $184.98 the day that deal was reported.

The ripple effect on other space-sector stocks was severe. On IPO day itself, Firefly Aerospace fell more than 18 percent. Rocket Lab, Redwire, and Intuitive Machines each dropped at least 10 percent. Virgin Galactic plunged 34 percent. Satellite stocks including Planet Labs and AST SpaceMobile shed at least 10 percent each. Institutional capital rotated aggressively into SPCX and out of smaller space-sector names.

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The Forward Catalysts That Will Drive SPCX in the Coming Months

The IPO itself was only the opening move. Several structural events are still ahead, and each carries meaningful price implications.

Nasdaq-100 inclusion was a key demand SpaceX made prior to selecting Nasdaq as the listing venue. Nasdaq adjusted its rules to accommodate fast-track inclusion for companies of sufficient scale. When SPCX is formally added to the Nasdaq-100, index-tracking funds and ETFs must purchase millions of additional shares to replicate the index weighting. That creates a quantifiable, time-limited buying event that historically supports the stock price during the inclusion window.

Options listing is expected in the near term. Once exchange-traded options become available on SPCX, it opens the stock to a much wider range of hedging and speculative activity. This typically increases both trading volume and short-term price volatility, particularly around the strike prices that attract the most open interest.

Lockup expiration is the event that most post-IPO coverage underestimates. Early investors, employees, and pre-IPO shareholders are subject to lockup restrictions that prevent them from selling shares for a defined period, typically between 90 and 180 days following the IPO. SpaceX’s structure involves a staggered lockup, meaning the restrictions expire across multiple dates rather than all at once. Each expiry date represents a potential increase in tradeable supply and, depending on sentiment at the time, could create selling pressure.

Earnings disclosure is the fundamental test that lies ahead. SpaceX has not yet set a date for its next earnings report, but it is expected within the next few months. Given that the company posted a $4.94 billion loss on $18.7 billion in revenue in 2025, the earnings report will force the market to reconcile its $2.4 trillion valuation against the current financial reality of a growth-stage, cash-burning enterprise.

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The Valuation Question That Will Not Go Away

Former Nasdaq chief executive Robert Greifeld made a pointed observation on IPO day: SpaceX is trading not on fundamentals, but on aspiration. The observation is accurate and important.

SpaceX is currently valued at roughly 128 times its 2025 revenue, and it does not generate a profit. Starlink, the satellite internet division, is the company’s only profitable business segment. The broader launch, defence, and Starship development operations are all loss-making at present.

Musk’s projection that SpaceX could reach $1 trillion in annual revenue by 2030 is the central thesis underpinning the valuation. If that is achieved, the current price reflects a forward multiple that might eventually look reasonable. If it is not, the valuation has very little traditional financial support.

History adds a note of caution. Analysis of large IPOs suggests that companies listing at peak valuations frequently underperform the broader market in their first 12 months. Based on historical averages for mega-cap IPOs, an investor purchasing at today’s prices should be prepared for the possibility of meaningful drawdowns before any structural appreciation takes hold.

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What Different Investors Should Consider

IPO allocation holders at $135: Those fortunate enough to receive shares at the offering price are sitting on a gain of approximately 37 percent in one week. Historical patterns for large oversubscribed IPOs suggest holding through the initial volatility and into the index inclusion period often produces the best outcomes. That said, locking in partial profits ahead of the lockup expiry dates is a rational risk-management step.

Investors buying on the open market above $150: The entry price matters significantly for long-term return potential. Purchasing at $185 implies a valuation of $2.44 trillion for a company with $18.7 billion in revenue and a net loss. The upside case requires sustained execution on Starlink growth, Starship commercialisation, and new revenue streams. The downside case requires only that fundamentals reassert themselves.

Passive investors in Nasdaq-100 funds: Index inclusion means many investors will automatically receive SPCX exposure through their existing portfolio without any active decision required. This is worth monitoring, as SpaceX will carry significant weight within any Nasdaq-tracking index product.

Observers of the broader IPO market: Greifeld’s view that SpaceX has opened a window for other large private companies to go public carries weight. OpenAI, Anthropic, and other high-valuation private firms are reportedly watching the SpaceX listing closely. A sustained post-IPO performance would likely accelerate IPO planning across the technology sector.

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What’s Next?

The SpaceX IPO delivered exactly the disciplined but historic debut that the pre-listing data had signalled. The stock did not collapse. It did not run to absurd levels. It opened with controlled enthusiasm, traded within a credible range, and closed with a 19.2 percent first-day gain, representing the most consequential stock market debut in history by almost every measurable standard.

What comes next is harder to call. The greenshoe exercise has confirmed sustained demand. Index inclusion will create a structural buying period. But the Cursor acquisition has introduced dilution concerns, the lockup expiry schedule carries real selling risk, and the fundamental question of whether a $2.4 trillion valuation is justifiable for a company losing nearly $5 billion per year has not been answered by day-one enthusiasm alone.

SpaceX the company has done things no private aerospace company has ever done. SpaceX the stock is now subject to the same forces that govern every other publicly traded company. The two do not always move together.