The SpaceX IPO Explained: SPCX, Lockup, and June 12 Trading

Update (October 26, 2026): SpaceX reported Q3 2026 results on October 20 with revenue of about $14.6B, against roughly $12.6B expected in Shacknews's roundup, and shares ended that day at $147.79. The 28% lockup tranche, up to 1.3 billion shares, became eligible on October 22, per the prospectus terms. SPCX closed at $147.49 on October 23, still above the $135 IPO price and below the $225.64 high from June 16. The Day 135 release (about 328 million shares) is dated October 24, so it first applies to trading today. The remaining dated event is the Day 180 release on December 8.

Before the long version, the wave at a glance: read this and skip ahead if you're short on time, or keep going for the lockup schedule, retail-fill math, and Day-1 trading mechanics.

The headline numbers, all confirmed at pricing tonight. SpaceX is selling 555.6 million shares at a fixed $135 each, raising $75 billion at a $1.75 trillion target valuation. Underwriters (Goldman lead, Morgan Stanley and JPMorgan in syndicate) hold an option for an additional 83.3 million shares (the greenshoe). Trading began on NASDAQ as SPCX on June 12.

What makes this offering atypical. The retail allocation, targeted at 30% (~$22.5B) and cut to the low 20% range before pricing, is the largest direct-to-retail carve-out any mega-IPO has ever extended, routed through Robinhood IPO Access, Fidelity, and Charles Schwab. (StockCram is not affiliated with any brokerage mentioned.) The lockup is not the standard 180-day cliff; it's a phased, tiered release tied to Q2 and Q3 earnings reports plus a rolling schedule at 70/90/105/120/135 days post-IPO. Musk himself is locked up for a full year with no early-release exceptions.

What bulls say (Wedbush's Dan Ives, PIMCO and BlackRock's published commentary): real revenue across launch contracts, Starlink ARPU, and post-xAI AI compute; NASDAQ-100 Fast Entry triggers mandatory passive buying within ~15 trading days of listing; broadest retail democratization in mega-IPO history.

What bears say (Morningstar most concretely): fair-value estimate of roughly $63/share against a $135 IPO price implies the offering is overvalued by about half. On June 4, S&P Dow Jones declined to relax S&P 500 entry rules, blocking what Bloomberg Intelligence estimated would have been ~$14B of forced S&P-500 buying for SpaceX.

The disagreement isn't about whether SpaceX is a real, important, structurally diversified company; both sides agree on that. It's about whether the $1.75T price already reflects the risks the bears see, or leaves room for the growth the bulls expect.

Update (October 12, 2026): SPCX closed at $162.57 on October 9, holding in the low $160s after the Day 120 lockup tranche (October 9) released roughly 328 million shares. The next dated milestone is Day 135 on October 24, which falls on a Saturday (first trading Monday October 26), releasing about 328 million shares. Q3 2026 earnings are expected around November 2-3 (unconfirmed), which will trigger the largest single lockup release: 28% of the 180-day group, roughly 1.3 billion shares. Merger speculation continued in September when Musk was asked on stage why Tesla and SpaceX remain separate companies and replied, "who can imagine what action one might take." No board has approved terms. Past performance does not predict future results. (Investing.com; 24/7 Wall St.; The Motley Fool.)

SpaceX's first trading session is now complete. Here is what actually happened: the confirmed Day-One result, which supersedes the pre-trade expectations described in the mechanics sections below.

SPCX did not trade the instant the market opened. As is normal for an offering this size, NASDAQ first ran its opening price-discovery auction (the Cross) before any shares changed hands. Official indications first printed around 9:50 a.m. ET near $171–175, roughly 27–30% above the $135 IPO price, and the stock opened for trading shortly after, with the first public trade clearing near $150. That delayed open was the standard IPO auction process, not a sign of trouble and not an LULD volatility halt. (CBS News; NPR; 24/7 Wall St..)

From there SPCX ran higher, touched an intraday high of $176.52 (about +31% over the IPO price), then gave some of that back to close its first day at $160.95, up roughly 19% from the $135 IPO price. That put SpaceX's market capitalization at approximately $2.1 trillion, instantly among the most valuable U.S. companies and confirming the largest IPO on record by a wide margin, surpassing Saudi Aramco's 2019 debut.

Before pricing, the retail allocation was trimmed. The 30% carve-out described throughout the sections below was the plan, not the outcome. CNBC reported on June 11, 2026 that SpaceX trimmed the retail tranche to the low 20% range as institutional demand crowded it out, the exact scenario flagged in the risk section below. It was still, by a wide margin, the largest direct-to-retail allocation any mega-IPO has extended, against a 5–10% norm. (CNBC.)

What the Day-One print does and doesn't tell us. A first-day close above the IPO price means demand cleared at a premium on Day One: buyers at the open paid less than the intraday high but more than the $135 IPO allocation price, exactly the premium dynamic the retail-access section flagged. What it does not tell us is anything definitive about the next 30, 90, or 180 days. The durable questions are still ahead: NASDAQ-100 Fast Entry (~15 trading days out, an early-July window), the staggered lockup tranches running through late 2026, and whether 2025's $4.94B net loss narrows toward the profitability gate that keeps SPCX out of the S&P 500. Those are the signals tracked in the watchlist below. Historical data shown; past performance does not indicate future results.

Since the debut (as of late July 2026): After closing its first day at $160.95, SPCX peaked at $225.64 on June 16, then fell sharply. By mid-July it had dropped below its $135 IPO price, and on July 23 it set an all-time low of $110.85, trading near $113 on July 25, then setting a new 52-week low of $104.83 on August 3 before bouncing to around $133 by August 8, well below both its June peak (~$225) and its $135 IPO price. On July 7 it became the fastest company ever added to the NASDAQ-100 (about $4.3 billion of passive inflows), but the stock sold off into and after inclusion in a textbook 'sell the news.' The second-quarter report was released August 4, 2026 (revenue $7.81B, up 92% year-over-year, beating estimates; net loss $541M; adjusted EBITDA $3.5B). The first lockup tranche expired August 6, releasing up to 911.5 million shares. Historical data shown; past performance does not indicate future results. (CNBC, "SpaceX stock sinks below $135 IPO price", July 2026; Investing.com.)

SpaceX bypassed the traditional price-range process entirely and went straight to a fixed $135 per share, itself a signal of book-building confidence, then confirmed that price after closing institutional orders on June 10. The final raise comes to $75 billion across roughly 556 million shares, putting SpaceX's IPO-day market capitalization at approximately $1.75 trillion. With the ~83 million-share greenshoe, the implied total proceeds if fully exercised approach $86 billion, which would push the record higher still.

The SEC documents disclosed in the public S-1 on May 20, 2026 showed SpaceX's full-year 2025 financials for the first time: revenue of $18.67 billion (up 33% year-over-year) and a net loss of $4.94 billion. The losses matter less for the IPO price than for the company's index-inclusion path, more on that below, and for how the bear case frames valuation.

The syndicate is top-tier. Goldman Sachs is the lead bookrunner; Morgan Stanley and JPMorgan Chase round out the lead positions, with a broader group of co-managers underneath. Reputable, full-strength bookrunning: the kind of syndicate that signals institutional comfort even before pricing.

What closed tonight was the institutional allocation. Tomorrow morning's open will tell us whether the heavy oversubscription (Bloomberg reported ~2× on June 8) translates into a sustained day-one premium or a more orderly tape; both are possible at this scale, and which one happens carries information about how durable the bid is.

Quick framing before we go deeper. Like the wave overview, this article uses a three-tier confidence framework: public S-1 filings and the official pricing release are highest-confidence; numbers reported by credible journalists but not in primary documents are medium-confidence; rumors and forward-looking inferences are lowest-confidence. Treating them as equivalent is how readers get burned in fast-moving IPO coverage.

We'll cite each item with its strongest available source as we go through the piece.

When a buyer hits the bid on SPCX tomorrow, they're buying a slice of a company that does not resemble the SpaceX of two years ago. The February 2026 all-stock absorption of xAI rolled Elon Musk's AI lab into SpaceX at a combined $1.25 trillion valuation ($1.0T SpaceX + $250B xAI). What now trades publicly is a launch + Starlink + AI infrastructure conglomerate, with all three businesses contributing to the revenue base. (CNBC, February 3, 2026.)

The revenue breakdown that bulls cite: launch contracts (commercial, NASA, DoD) provide the cash-generating foundation; Starlink subscriptions provide recurring ARPU that scales with the satellite constellation; the xAI compute and Grok-platform monetization layer in on top. Bears note that no comparable public company exists with this exact business mix, which makes peer-multiple comparison difficult: Lockheed Martin and Boeing are launch comparables but no Starlink, AT&T-style telecom is closer to Starlink but no launch, and AI labs like Anthropic are closer to xAI but no rockets. The closest synthetic comparable is a portfolio: roughly equal-weighted basket of Lockheed, AT&T, and Nvidia would approximate the integrated exposure. Whether that synthetic blend justifies $1.75T is exactly what bulls and bears are arguing.

For context on the wave as a whole, including where SpaceX sits versus Anthropic and OpenAI, our wave overview covers each company side-by-side.

The SpaceX stock ticker is SPCX, trading on NASDAQ starting June 12, 2026. Here's what's actually available to retail investors: at the IPO price, at the open, and after.

Headlines all week have been variations of "SpaceX is letting retail buy 30% of the IPO." That's directionally true. It's also an oversimplification of what the math actually says about your odds of getting filled.

The 30% plan would have translated to roughly $22.5 billion of shares set aside for individual investors through three brokerages. The tranche was cut to the low 20% range before pricing (CNBC, June 11, 2026), which puts the real set-aside closer to $16 billion and makes the fill math below tighter, not looser: Robinhood IPO Access, Fidelity, and Charles Schwab. (StockCram is not affiliated with any brokerage mentioned.) For mega-IPO context, that's enormous: typical retail allocation on a deal this size is 5-10%, so SpaceX's program is roughly three to six times larger than the historical norm.

But here is the math nobody is publishing. Bloomberg reported on June 8 that the institutional book was already ~2× oversubscribed: roughly $150B of demand against $75B of supply. Retail demand is almost certainly higher in number of orders even if smaller in dollar value. With retail allocation capped at ~$22.5B under the original plan, ~$16B as finally priced, and demand a large multiple of either even at modest per-account requests, average fill rates could be materially lower than requested allocations if retail demand resembles the institutional demand levels Bloomberg has reported. "Retail allocation available" is not the same thing as "every retail account that wants 100 shares will get 100 shares."

Visualized as three beakers, the gap between supply and demand is the whole story:

This retail carve-out is real and historically large. The chart shows the 30% plan, and the final tranche came in at the low 20% range, so the imbalance between total demand and retail allocation was closer to 9x than the 7x pictured. Either way it is why most retail submissions were filled at a small fraction of requested.

Three practical paths exist for most readers, and they aren't equally available. The first is requesting shares at the IPO price through Robinhood, Fidelity, or Schwab IPO Access: eligibility varies by brokerage (minimum balances, account history, sometimes invitation-only access) and submission doesn't guarantee a fill. The second is buying on the open market on June 12 once SPCX trades; anyone with a brokerage account can buy at the market price, which may be materially above or below the $135 IPO price. The third, and arguably the simplest, is gaining exposure via index ETFs after inclusion: once SpaceX enters the NASDAQ-100 (~15 trading days after listing under Fast Entry), any NASDAQ-100 ETF such as QQQ gets weighted SPCX exposure automatically.

One caution on the open-market path. Multiple sell-side desks and at least one Morningstar piece have flagged that the open could come in well above $135, which means buyers at the open are paying a premium that IPO-price allocators didn't. Whether that premium holds or fades inside the first 30 days is itself path-dependent. We cover the Day-1 mechanic, including the LULD-halt rule that can pause trading on a volatile debut, in a later section.

These are paths, not recommendations. The map exists so readers can plan rather than panic-decide on listing day. Whether SPCX belongs in a specific portfolio depends on the portfolio, not on whether the headline is compelling.

A debut at this scale is unusual to watch, and the cleanest way to read one is to know what happens mechanically before the headlines start firing. (For what actually happened on June 12, see the Day-One update above; this section explains the why behind it.)

An IPO's opening trade is never at the IPO price itself. NASDAQ uses a price-discovery auction process, a Cross, for new listings, where institutional and retail orders interact to find an opening price that clears the most volume. The IPO price ($135) is what the underwriters allocated shares at the night before; the open is the first publicly tradeable price, and finding it takes time, which is why SPCX's first indications didn't print until mid-morning and the stock opened well above $135. How much of a premium the open carries is the first data point of any debut.

Halts are a built-in possibility, not a forecast. SPCX is subject to the same LULD (Limit Up-Limit Down) rules that apply to all NMS-listed stocks: automatic five-minute trading halts trigger when the price moves outside a defined band in a short window. On a volatile debut, one or more halts are always possible: potentially both up-halts (extreme upside moves) and down-halts (sharp pullbacks) within the same session. The key thing for beginners to understand is that a halt is not a sign of failure; it's the system working as designed to give the order book time to find equilibrium when prices move fast. (Note the difference from the opening-auction delay above: that delay is the normal price-discovery process, not a volatility halt.)

Three things matter most for reading a debut's tape. First, where the open clears versus the IPO price: that's the institutional-vs-retail demand snapshot. Second, the institutional-vs-retail volume mix in the first hour, which the tape reveals indirectly through the size distribution of trades. Third, whether the price closes above or below the open, which is the actual day-one signal sell-side desks write about afterward.

A reality check from prior mega-IPOs. Aramco (the closest size comp) opened roughly flat-to-down on its 2019 first day. Meta opened modestly above its $38 IPO price in May 2012, then closed near the IPO price, then cratered to $18 over the following four months. Alibaba popped 38% on its Day 1 in 2014 and held. There is no single playbook: even when a deal is broadly considered hot, what the first day means for the next 30/90/180 days is path-dependent. Historical data shown; past performance does not indicate future results.

Most IPO coverage focuses on what's likely to go right. The opposite framing is at least as useful for readers trying to understand a debut. Here are five scenarios that can meaningfully disrupt a mega-IPO's opening day, useful as a lens on June 12 and on the Anthropic and OpenAI debuts still to come (the full Anthropic IPO explainer covers where that one stands), each with a brief note on what it actually looks like.

The open prints 40%+ above the IPO price. A blowout open above roughly $189 would be a strong-demand signal but also a Day-1 risk for retail buyers who bought the open. Mega-IPO openings that print far above the IPO price have, historically, often given back a meaningful chunk of that premium over the following days as the institutional book unwinds. Alibaba opened 38% above its IPO price in 2014 and held; Snap opened 41% above its 2017 IPO price and was below the open within months. Path-dependent.

The retail allocation comes in lower than the headline 30%. Underwriters retain discretion to reduce the retail tranche if the institutional book is strong enough to absorb more supply at the IPO price. If retail allocation ends up at 20% rather than 30%, fill rates per submitted order would compress further, and any retail buyer who built a thesis around the "democratized IPO" framing would have to reconsider.

Heavy profit-taking inside the first hour. With an unusually large retail allocation and an oversubscribed institutional book, the open is likely to contain a mix of long-term holders and short-term profit-takers. If the latter dominate the early tape, SPCX could see down-halts within the first 30-60 minutes regardless of underlying demand. That dynamic has historically been the single most common Day-1 negative signal.

A market-wide risk-off move. SPCX's open coincides with whatever else is happening macro-wise on June 12. A broad equity selloff (rates spike, geopolitical shock, surprise inflation print) on the same day would compress the IPO premium independent of SpaceX-specific demand. Worth checking the broader tape before drawing conclusions from the SPCX print.

Underwriter stabilization activity. Underwriters typically have the option to support the share price in the first 30 days post-IPO through stabilizing bids and the greenshoe mechanism. If you see SPCX hold a tight range near the IPO price despite weak retail demand, stabilization may be the reason, not organic interest. The pattern usually shows up as repeated buying at round-number price levels and a noticeably tighter spread than market depth would justify.

This is a checklist, not a forecast. They're a checklist for distinguishing real Day-1 signals from noise.

Most coverage you'll see this weekend will say SpaceX has a "standard 180-day lockup." That's wrong. The S-1 disclosed a staggered, multi-tier release schedule unlike the typical mega-IPO cliff, and it matters because it changes both the timing and the concentration of post-IPO insider selling pressure.

Here is what the filing actually says. SpaceX reported Q2 2026 earnings (the three months through June) on August 4, 2026, and the first release window opened on August 6: roughly 911.5 million shares (about 6.97% of shares outstanding). The $175.50 five-day price trigger that could have freed roughly another 455.8 million shares was not hit. From there, a rolling release at 70, 90, 105, 120, and 135 days post-IPO allows another 7% at each interval. SpaceX reported Q3 2026 earnings (the three months through September) on October 20, and an additional 28% became sellable on October 22. At the 180-day mark, whatever remains is fully released. (CNBC, May 21, 2026; Morningstar coverage of the tiered structure.)

Musk is a separate, stricter case. The S-1 carves him out of every early-release provision. His ~40%+ stake is locked up for a full year from the IPO date, to June 2027, with no exceptions. That's a deliberate signal of long-term commitment, and bulls cite it as a tail-risk reducer.

Why this structure matters. The traditional 180-day cliff concentrates all eligible insider supply on a single day, which is why so much pre-IPO commentary fixates on the lockup date. By spreading SpaceX's release across two earnings windows and a rolling 70-135 day schedule, the supply hits the market in smaller batches over four to five months, which (in theory) lets the market absorb each tranche without a one-day crash. Whether that smoothing actually works is the test the next six months will run.

Visualized as a staircase descending from Day 0 to Musk's June 2027 release, the schedule reads less like a cliff and more like a controlled release:

Most pre-IPO commentary focuses on a single 180-day cliff date. SpaceX's design spreads supply across 9 separate release events over 12 months: the deliberate smoothing is what makes this lockup structurally novel.

The biggest pre-IPO investors who become eligible to sell across this schedule are Founders Fund (Peter Thiel's, from a $20M Series C in 2008), Sequoia Capital, Alphabet (through Google's 2015 investment), and Fidelity. Their reactions to each tranche release will be one of the most-watched signals of late 2026, and the eventual deep-dive on the December lockup-expiration window is one we'll cover separately as it gets closer.

Putting the index-inclusion, lockup, and Musk-specific milestones on a single timeline makes the next 12 months easier to plan around.

Seven milestones, from pricing tonight through Musk's June 2027 unlock:

The seven dates above are the framework most worth bookmarking: bull or bear, every meaningful catalyst for SPCX between now and mid-2027 sits on this stack.

Two of the three major U.S. index families said yes to fast-tracking SpaceX. One said no. The split matters because it determines how much mechanical, mandatory passive-fund buying SPCX will draw inside the first 30 days versus the first 18 months.

The NASDAQ-100 mechanic stands. On May 1, 2026 NASDAQ implemented its Fast Entry rule: newly listed top-40-by-market-cap names enter the NDX after just 15 trading days of seasoning, down from approximately six months previously. SpaceX, listing as the largest U.S. company by market cap, easily clears the top-40 bar. Roughly 15 trading days after June 12, every passive fund tracking the NASDAQ-100 (QQQ being the largest, but a wide range of other trackers too) is required to buy SpaceX. The estimated mechanical buying via NASDAQ-100 alone is in the low-to-mid double-digit billions.

FTSE Russell adopted parallel rules. They announced parallel fast-entry rules in May 2026, and SpaceX is now eligible for inclusion in both the Russell US Equity Indexes and the FTSE Global Equity Index Series. The additional mechanical buying from FTSE-tracking funds is smaller than NASDAQ-100 but not trivial: a few additional billion in forced demand on top of the NASDAQ-100 bid.

S&P Dow Jones went the other way. After a public consultation, on June 4, 2026 the index committee confirmed it would not relax the S&P 500's existing requirements (GAAP profitability, 12-month seasoning, investible-weight-factor minimums). SpaceX, with $4.94B in 2025 net losses, cannot be added to the S&P 500 until it both becomes GAAP-profitable and clears the seasoning window: earliest mid-2027, and only if profitability arrives by then. Bloomberg Intelligence estimated that S&P fast inclusion would have driven roughly $14 billion of forced passive buying for SpaceX alone. That bid does not happen.

What to expect over the next 30 trading days. NASDAQ-100 inclusion triggered about 15 trading days after IPO: for SpaceX that was July 7, 2026, when it became the fastest company ever added to the NASDAQ-100 (confirmed). Additions to FTSE Russell indices follow quarterly review schedules. S&P 500 inclusion is off the table for at least a year regardless of how SPCX trades.

This section is explicitly forward-looking and speculative. Treat what follows as material rumor with a credible analyst chorus behind it, not as a near-term certainty.

Wedbush's Dan Ives is the most prominent analyst publicly modeling a combination. His current probability assessment is 80-90% for a merger completed in the first half of 2027, up from his initial "80%" framing in late May (Yahoo Finance; TheStreet). Ives' framing is that the combination would create a single Musk-controlled entity spanning rockets, satellites, EVs, energy storage, and AI infrastructure: combined market cap somewhere between $3.4T and $3.6T depending on Tesla's trading level.

What makes the timing material rather than abstract is the pay-package mechanic. Per Electrek's reading of the Tesla compensation terms, a SpaceX-Tesla combination could automatically trigger Musk's $1 trillion CEO pay package by accelerating the combined entity past the $7.5T market-cap milestone, meaning compensation tied entirely to market-cap performance rather than operational milestones. That creates a real CEO incentive to consummate the combination on Ives' timeline rather than let SPCX trade independently for years. Fortune (June 4) also flagged a single sentence in SpaceX's amended S-1 about issuing significant equity in future transactions as too pointed to be boilerplate.

This remains unconfirmed. Musk has made no on-the-record statement. Neither board has acknowledged anything publicly. Bulls treat the merger as upside optionality on SPCX; bears treat it as execution complexity for the next 12-18 months that adds variance regardless of direction. The honest read is that the conversation is real and worth bookmarking, and that any rebalancing of position size around it should wait for a confirming signal from Musk or the boards.

The bull case for SpaceX at $1.75T has named voices and concrete arguments. Stripping out the noise, the strongest version of it rests on five pillars.

Diversified revenue with multiple growth vectors. Launch contracts (commercial, NASA, DoD) provide the cash-generating foundation that traditional space companies have always had. Starlink subscriptions add ARPU that scales with the constellation buildout, a recurring revenue base that grows whether the broader market is bullish or bearish on AI. The post-xAI compute layer adds AI infrastructure exposure during a hyperscaler-capex cycle that is itself running at $700B+ in 2026 (covered in detail in our AI bubble piece). The diversification means SPCX is not a single-thesis bet.

Structural rule changes that recognize the company's market-cap weight. NASDAQ-100 Fast Entry and FTSE Russell's parallel inclusion provide mandatory passive demand in the low-to-mid double-digit billions within the first 30 days. Bulls treat this as a methodology fix overdue for the era of long-private companies, not artificial pumping.

The staggered lockup as a stability feature. The non-standard tiered release was designed to smooth post-IPO selling pressure rather than concentrate it on one day. If the smoothing works, SPCX avoids the one-day cliff selloff that has hurt prior mega-IPOs (Meta's first lockup, for instance, drove the stock to its $18 post-IPO low). Bulls cite this as a structural improvement over the standard playbook.

Named institutional commentary. PIMCO's and BlackRock's June commentary (collated by TradingKey) is bullish on the AI infrastructure capex cycle that SpaceX-via-xAI now sits inside. When two of the world's largest asset managers tell clients to expect continued acceleration, the active money is broadly aligned with the wave rather than fighting it. Ives' "opening of the floodgates" framing is consistent across his Wedbush notes.

Retail-democratization optionality. The retail carve-out, even trimmed to the low 20% range at pricing, is structural rather than marketing: it's the first time U.S. retail investors get direct IPO-price access to a trillion-dollar private-tech name at this scale. Bulls argue that broadens long-term ownership distribution in ways that historically reduce volatility once the dust settles.

Each point has a counter, and the bears press on it in the next section.

The bear case has its own named voices and dated data points. The strongest version isn't "SpaceX is fake." It's that timing, valuation math, and historical precedent all point in the same direction.

The cleanest single bear data point comes from Morningstar. In their pre-IPO assessment, Morningstar published a fair-value estimate of roughly $63 per share, a 53% discount to the $135 IPO price, implying the offering is overvalued by approximately half. At the company level, that translates to a $780 billion fair-value estimate against the $1.75 trillion IPO valuation. Morningstar analyst Nicolas Owens's discounted cash flow model values the combined launch and Starlink satellite businesses at about $611 billion in enterprise value, plus another $170 billion in probability-weighted scenarios for the company's AI operations. (CNBC, June 3, 2026; Yahoo Finance summary.) Fair-value estimates from independent research desks are analyst opinion, not official guidance, but Morningstar's methodology is well-documented, and the headline framing they used ("significantly overvalued") is direct enough that it's worth taking on its own terms whether you agree or not. The comparison to Aramco below is useful for IPO-scale analysis, not business-model comparison.

The structural pattern bears cite. Mega-IPOs concentrated near market tops have a track record. Saudi Aramco IPO'd in December 2019 at $1.7T, ran flat-to-down on Day 1, and over the six years since has returned roughly +15% while the S&P 500 returned over +100% and sector peers (Exxon, Chevron, Shell, Total) all returned 55-65%. Being the biggest IPO does not make a stock the best buy.

The valuation math, bear flavor. At $1.75T market cap and roughly $19B in 2025 revenue, SPCX is trading at approximately 92× revenue. For context: Nvidia trades around 25× sales; Lockheed Martin around 2×; AT&T around 1.5×. Bulls counter that revenue is the wrong multiple, that adjusting for growth potential and recurring Starlink ARPU you get to a more defensible number. Bears respond that 92× sales at a $4.94B loss is the kind of multiple that requires perfect execution for years to grow into.

The S&P 500 denial as a real-world bear data point. The June 4 S&P Dow Jones decision to maintain existing rules, refusing to relax profitability and seasoning requirements, stripped what Bloomberg Intelligence estimated would have been ~$14B of forced S&P-500 buying for SpaceX in its first year. That's a quantifiable demand headwind that didn't exist two weeks ago, and it constrains the index-mechanic tailwind to NASDAQ-100 and FTSE Russell only.

The lockup-expiration cluster. Even with the staggered structure designed to smooth supply, the cumulative tranche releases through November-December 2026 represent the largest pre-IPO equity overhang in market history. Founders Fund's 2008 Series C position has appreciated roughly 62,000% at current valuations; even a partial exit creates meaningful supply. Whether the smoothing absorbs that supply orderly is one of the bear case's main watchlist items.

History suggests both sides might be right at different time horizons, measuring different things on different clocks.

The Cisco parallel is the cleanest illustration. Cisco was the dominant, profitable infrastructure company at the heart of the internet revolution. Bulls in 1999 were correct that Cisco would matter for decades. Bears in 1999 were also correct that Cisco's stock would fall about 85% from its 2000 peak. Both facts coexisted, and a buyer who believed both could have positioned around either thesis at different points in the timeline.

The Aramco parallel is the cleanest illustration for SpaceX specifically. Aramco is a real company that pumps real oil and generates real cash. It was the biggest IPO in history at the time. It also materially underperformed the S&P 500 over six years. The company is structurally important. The stock was a poor buy at IPO. Neither claim cancels the other.

If that's how SPCX resolves, the most likely outcome is that SpaceX remains a structurally important company and delivers disappointing 5-year stock returns relative to the S&P 500. Morningstar's $63 fair-value estimate could be right about prices in the next few years; Ives' merger thesis and PIMCO's AI-capex framing could be right about long-term importance. The two views aren't actually in conflict; they're measuring different things on different timelines.

That's not a comforting framing. It's just the historically most common one when a real innovation meets an enthusiastic market.

Five common misreads. None are dumb questions; they're the questions the headlines invite.

"Day-1 buyers get the IPO price." No. The IPO price ($135) is what underwriters allocated shares at to institutional and retail-program participants. Day-1 buyers buy at the market open, which for SPCX is being formed through NASDAQ's price-discovery auction. The open could be materially above $135, meaning Day-1 buyers pay a premium IPO allocators didn't.

"Trading halts mean the stock is in trouble." No. LULD (Limit Up-Limit Down) halts are automatic five-minute pauses designed to let order books find equilibrium when prices move fast. On a volatile mega-IPO debut, one or more halts are always possible: both up-halts (extreme upside) and down-halts (sharp pullbacks). They're a feature, not a failure. (Separately, the delayed open on a big IPO is the normal price-discovery auction, not a halt.)

"Lockup expiration always crushes the stock." Sometimes. The standard 180-day cliff has crushed some IPOs (Meta hit its post-IPO low at its first lockup release in 2012) and rallied others (Meta's biggest lockup, in November 2012, saw the stock rally +10% on the day). Path-dependent. SpaceX's staggered design is specifically built to avoid the cliff dynamic.

"The bigger the IPO, the better the stock." Aramco was the biggest IPO in modern history before SpaceX. It underperformed the S&P 500 by roughly 4× over the next six years. Size attracts attention; quality is a separate question.

"NASDAQ-100 inclusion guarantees gains." Mostly tailwind, but not magic. Tesla rallied ~70% after its December 2020 S&P 500 inclusion with $51B of mechanical buying behind it. But Snowflake and DoorDash both underperformed in the year following their NASDAQ-100 additions. The mechanical bid is real; everything else is up to the underlying fundamentals.

What changed on this page since it was published, newest first.

Update (October 19, 2026): SpaceX has confirmed it will report Q3 2026 results on Tuesday, October 20, at 3:30 PM CT, per its investor relations page. That is earlier than the early-November date this post had expected. Analysts quoted by TipRanks expect roughly $12.9B of revenue, and the options market was pricing a move of about 7.8%. SPCX closed at $146.03 on October 16, down from $162.57 on October 9 and still above the $135 IPO price. The Q3 report is the trigger for the 28% lockup tranche described below, and the Day 135 release (October 24, first trading Monday October 26) comes right after it. Tesla-merger talk picked up again on October 16 after Tesla's Roadster reveal, but no board has approved terms. Past performance does not predict future results.

Update (October 5, 2026): SPCX traded around $159 as of October 2, up from the low $140s in late August. The Day 90 lockup tranche (September 9) and Day 105 tranche (September 24) both released as scheduled, with roughly 319 million shares and 328 million shares eligible respectively. The next releases are Day 120 (October 9) and Day 135 (October 24, first trading Monday October 26), each releasing about 328 million shares. Q3 2026 earnings are expected around November 3, which will trigger the largest single lockup release (28% of the 180-day group, roughly 1.3 billion shares). Merger speculation continued in September when Musk was asked on stage why Tesla and SpaceX remain separate companies and replied, "who can imagine what action one might take." No board has approved terms. The stock has stabilized in the $150s-$160s range after bouncing from its August 3 low of $104.83. Past performance does not predict future results. (Investing.com; 24/7 Wall St.; Yahoo Finance.)

Update (August 31, 2026): SPCX closed at $141.50 on August 30, holding above its $135 IPO price after the Day 70 lockup tranche (August 20) released additional shares. The next catalyst is the Day 90 lockup expiration on September 9-10, releasing roughly 319 million shares (about 2.44% of shares outstanding). The stock has stabilized in the low $140s after bouncing from its August 3 low of $104.83. Historically, past performance does not predict future results. (Investing.com.)

Update (August 24, 2026): SPCX traded around $137 as of August 23, holding near its $135 IPO price after the second lockup tranche (Day 70) expired August 20, releasing additional shares. Prediction markets now show 65% probability of a Tesla-SpaceX merger before 2028 (Kalshi), down from earlier peaks but consistent with the post's framing as material rumor. The stock has stabilized in the $130s after bouncing from its August 3 low of $104.83, with the next major catalyst being the Day 90 lockup tranche in late September. Historically, past performance does not predict future results.

Update (August 17, 2026): SPCX has recovered to around $140 as of August 17, trading above both its $135 IPO price and the ~$133 level from August 8. The stock bounced after the August 6 lockup expiration released 911.5 million shares, contrary to widespread predictions of a sustained selloff. ARK Invest's August 11 podcast maintained merger speculation at similar probability levels to Wedbush's earlier estimates, with Cathie Wood's team suggesting an announcement could come before year-end 2026. The post's framework (NASDAQ-100 inclusion on July 7, Q2 earnings August 4, first lockup August 6) all occurred as described. Historically, past performance does not predict future results.

Update (August 8, 2026): SpaceX reported Q2 2026 earnings on August 4, revenue $7.81B (up 92% year-over-year, beating estimates), adjusted EBITDA $3.5B, and a net loss of $541M. The stock fell about 8% in after-hours trading on concerns over $18.4B in quarterly capex, well above analyst forecasts. The first lockup tranche expired August 6, releasing up to 911.5 million shares (about 6.97% of shares outstanding, as the post forecast). SPCX bounced 16% on August 7 and 8, trading around $133 as of August 8, up from a new 52-week low of $104.83 set August 3. The Tesla-SpaceX merger conversation heated up in late July when Musk hinted at 'more and more overlap' on Tesla's July 22 earnings call, though he stopped short of confirmation. The post's framing of the merger as material rumor remains accurate. Historically, past performance does not predict future results. (Investing.com; CNBC Q2 earnings; CNN lockup; Electrek merger.)

Selected primary sources for the figures, dates, and quotes in this article. Links go to publication homepages and verified primary documents; specific article URLs are described inline so readers can search them directly.

SpaceX filings and official pricing

• SpaceX S-1 (May 20, 2026, public): SEC EDGAR: SpaceX filings
• Official pricing release (June 11, 2026): NPR; CNBC; Reuters
• SpaceX/xAI merger (February 2026): CNBC, February 3, 2026

Lockup structure and insider mechanics

• CNBC (May 21, 2026): staggered lockup explanation
• Morningstar: How SpaceX's tiered lockup aims to help post-IPO trading

Index inclusion

• NASDAQ-100 Methodology FAQ (Fast Entry, effective May 1, 2026): Nasdaq Global Indexes
• S&P Dow Jones June 4, 2026 ruling: Bloomberg; CNBC (June 5)
• FTSE Russell methodology page: ftserussell.com

Bull and bear analyst voices

• Wedbush, Dan Ives' SpaceX coverage: Yahoo Finance summary; TheStreet
• Morningstar fair-value estimate ($63/share): Fortune (June 3, 2026)
• PIMCO and BlackRock institutional commentary: collated by TradingKey (June 2026)

Tesla-merger and Musk pay package

• Electrek (May 31, 2026): pay-package auto-trigger analysis
• Fortune (June 4, 2026): SpaceX amended S-1 single-sentence signal
• Teslarati merger coverage

Historical mega-IPO comparisons

• Saudi Aramco IPO retrospective: Brookings; AGBI
• Meta IPO retrospective: TechCrunch (July 31, 2013); CNN Money (November 13, 2012)
• Tesla S&P 500 inclusion (December 2020): S&P Dow Jones indexology notes; bank-desk analyses

Last reviewed: October 26, 2026.