The Trillion-Dollar AI IPO Wave: SpaceX, Anthropic, OpenAI Explained

Update (October 27, 2026): Anthropic made its S-1 public on October 26, 2026 (SEC-filed). It proposes the ticker ANT on the Nasdaq Global Select Market and names Goldman Sachs and Morgan Stanley as lead underwriters. The price range, share count and listing date are still blank. The filing shows this page had several things wrong, including the ticker letters, the share classes and whether Anthropic is profitable. The update history lists each correction, and our full read of the Anthropic S-1 covers the filing.

Update (October 23, 2026): SpaceX (SPCX) closed at $144.75 on October 22, down 9.1% on the day, for a market value of about $1.91 trillion (Marketchameleon); its 52-week range is still $104.83 to $225.64. Anthropic's timeline has moved from October to November. Bloomberg reported it held an investor day at its San Francisco headquarters on October 14, with formal marketing possibly starting the week of November 9 and trading before Thanksgiving. Three sources told Huo Xing Finance the public S-1 could land as early as October 22, but we could not confirm an EDGAR filing, and the company has not confirmed any dates. The same reports say investor valuation expectations have fallen from about $2 trillion to roughly $1.5 trillion, an unofficial figure. OpenAI's 2027 timing is unchanged.

Update, reviewed July 26, 2026: The wave has diverged, and it is now mixed rather than uniform. SpaceX went public June 12 as SPCX at its $135 IPO price, popped to $160.95 on Day 1 (+19%) and reached $225.64 on June 16, then fell back below its $135 IPO price by mid-July; it traded around $113 on July 25, hitting a 52-week low of $104.83 on August 3 before recovering to $140.00 by August 14, a rocky post-IPO debut. Anthropic remains on track, with reporting pointing to an October 2026 listing and no exchange or ticker announced, and could be the first company to go public near a $1 trillion valuation (underwriters Goldman Sachs, JPMorgan, and Morgan Stanley; investor meetings were held in mid-July). OpenAI has delayed: after a June 8 confidential filing, company-confirmed 2027 listing (Sarah Friar, August 19), citing market volatility, SpaceX's rocky debut, and CEO Sam Altman's insistence on a roughly $1 trillion listing floor. One member is public and below its offer price, one is proceeding, one has slipped to 2027. Historical data shown; past performance does not indicate future results.

The wave at a glance: read this and skip ahead if you're short on time, or keep going for named voices, dated sources, and the killer angle.

The three companies in one sentence each. SpaceX (combined with xAI since February 2026) trades June 12 on NASDAQ as SPCX at a ~$1.75 trillion target, with up to a $75 billion raise, 2.5× larger than Saudi Aramco's record. Anthropic filed a confidential S-1 on June 1 with a ~$47 billion annualized run-rate (a 12-month projection of the most recent month's revenue, not actual booked annual revenue); it made the S-1 public on October 26, 2026, proposing the ticker ANT on the Nasdaq Global Select Market, with the listing date still blank. OpenAI is reported to have filed confidentially on May 22; company-confirmed 2027 listing (CFO Sarah Friar told employees on August 19, 2026 that OpenAI "will be a public company in 2027").

The bull case, in summary, is that these are real-revenue companies with audited financials, a structural break from 1999's pets.com IPOs, and that a new NASDAQ-100 "Fast Entry" rule (effective May 1, 2026) auto-includes top-40-by-market-cap names after just 15 trading days, creating mechanical NASDAQ-100 demand within weeks of each IPO. (S&P Dow Jones declined to follow on June 4, keeping the S&P 500's existing profitability and 12-month-seasoning rules in place.) Anthropic President Daniela Amodei, Wedbush's Dan Ives, and PIMCO and BlackRock's published commentary all sit on this side.

The bear case is that mega-IPOs at all-time highs concentrated in one sector are textbook late-cycle, and that Anthropic's private $965 billion valuation is about 20.5 times its $47 billion run-rate (a run-rate multiple on a private valuation, not a trading price), the upper end of comparable enterprise software. On filed revenue for the 12 months to June 30, 2026, about $19.7 billion, the same valuation is about 49 times sales (our arithmetic). Michael Burry on his Substack, Jeremy Grantham of GMO in Fortune, and Anthropic CEO Dario Amodei's own "if I'm off by a year… you go bankrupt" line from Dwarkesh Patel's podcast all sit on this side.

Both camps agree on the facts: the index-inclusion mechanics will apply mechanical buying, and the wave's scale is unprecedented. What separates them is whether the mechanical bid proves AI's economic weight or masks fundamentals that haven't caught up yet.

Quick framing before we go deeper. This is a fast-moving story with three different kinds of facts mixed together: public S-1 filings (high confidence), confidential filings reported by reliable journalists but not yet public (medium confidence), and rumors / leaks / inferences (lower confidence). Treating them as equivalent is how readers get burned. The table below separates them.

We'll cite each item with its strongest available source as we go through the article. When a figure is media inference (like Anthropic's widely-cited "$965B IPO valuation," which is actually the Series H post-money number rather than an S-1 target), we'll call it out specifically.

Here's the calendar of what's known. Confirmed items in bold; reported timing in regular text.

The wave compresses roughly four months of unprecedented IPO activity into a single visual:

Five major milestones between May 1 and June 12, and the wave isn't even half-done: OpenAI and Anthropic are still ahead. The table below adds the granular detail.

Three confidential S-1 filings inside ten days isn't coincidence. It's structural.

The market backdrop is hot. The S&P 500 is trading near 7,609 (June 3, 2026); the Magnificent 7 (Apple, Microsoft, Alphabet, Amazon, Meta, Nvidia, Tesla) collectively account for roughly 35% of the entire index by market capitalization; and hyperscaler capex is on pace for $700–725 billion in 2026 (covered in detail in Article 1). The chart below makes the concentration easier to feel than to read. If a company has any plausible reason to list public soon, this is the window.

More importantly, the rules of going public partly changed in spring 2026 in ways that favor these specific IPOs. The The "Fast Entry" rule (effective May 1, 2026) cut the NASDAQ-100 seasoning requirement to just 15 trading days for new listings in the top 40 by market cap, and FTSE Russell followed with parallel rules for its US and global indices. S&P Dow Jones, however, went the other way: after a public consultation, on June 4, 2026 it confirmed it would not relax the S&P 500's existing 12-month seasoning, profitability, and float requirements, a meaningful setback for SpaceX, which now can't be considered for S&P 500 inclusion until at least mid-2027 and only if it becomes GAAP-profitable by then. We'll work through the math in Section 7, but the short version is that the NASDAQ-100 mechanic is real and immediate, the S&P 500 mechanic is not, and the gap between those two outcomes is one of the more important data points for reading the wave.

Layered on top is a forward-looking conversation worth bookmarking but not building a thesis around: Wedbush's Dan Ives now puts Tesla-SpaceX combination odds at 80-90% with a first-half-2027 target. Rumor-quality with credible analyst attribution, see our SpaceX deep-dive for the merger mechanics if you want them.

Add three trillion-dollar AI listings to the existing concentration picture and the implication becomes visual:

The Mag-7 already account for ~35% of the S&P 500. Adding the AI IPO wave doesn't diversify the index; it deepens the same bet on the same theme.

Start with the company that went public on June 12. SpaceX filed its S-1 publicly, not confidentially, on May 20, 2026 (SEC EDGAR), and the roadshow launched June 4 (earlier than the originally reported June 8 window after a faster-than-expected SEC review). It priced after market close on June 11 and began trading June 12 on NASDAQ as SPCX at a ~$1.75 trillion valuation. Unusually, SpaceX bypassed the traditional price-range process and went straight to a fixed $135 per share on 556.6 million shares, which signals confidence in book demand. The raise, up to $75 billion, would be 2.5× larger than Saudi Aramco's 2019 record (which raised $25.6B, or $29.4B counting the greenshoe).

The profitability question matters because S&P 500 entry depends on it. SpaceX's S-1 disclosed 2025 revenue of $18.67 billion (+33% YoY) and a net loss of $4.94 billion, which is why S&P Dow Jones declined on June 4 to relax the index's profitability requirement, blocking SpaceX from S&P 500 fast entry. Fast Entry to the NASDAQ-100 remains in play; S&P 500 inclusion is now off the table until at least mid-2027.

The company going public is no longer the SpaceX of two years ago. SpaceX absorbed xAI in February 2026 in an all-stock transaction at a combined ~$1.25 trillion valuation ($1.0T SpaceX + $250B xAI), so what trades on June 12 is a launch + Starlink + AI infrastructure conglomerate. That breadth cuts both ways: bulls point to diversified revenue across launch contracts, Starlink subscriptions, and AI compute; bears note that no comparable trading multiple exists for an integrated company like this.

The underwriting syndicate is first-tier, Goldman Sachs lead with Morgan Stanley and JPMorgan in the book (CNBC, May 20, 2026; PYMNTS, June 3, 2026). Not a regional or boutique-led offering.

What's notable is the retail allocation: SpaceX is reportedly setting aside up to 30% of the offering for retail investors via Robinhood's IPO Access, Fidelity, and Charles Schwab. (StockCram is not affiliated with any brokerage mentioned.) Mega-IPO retail allocation is typically under 10%, so 30% is a structural break, one that may translate into heavier retail demand at the open and more first-day volatility in either direction.

The Tesla-merger story is the section's wild card. Fortune (June 4, 2026) flagged a single sentence in SpaceX's amended S-1 that may signal the long-rumored Tesla-SpaceX combination, and Wedbush's Dan Ives publicly put the odds at 80%. The merged entity would be valued at roughly $3.4 trillion and would reportedly trigger Musk's $1 trillion Tesla compensation package automatically (per Electrek). There has been no on-the-record Musk statement either way. Treat the merger as material rumor, not confirmation.

The questions first-day watchers cared about were tactical: did the $1.75T target hold at pricing, was there a pop or a discount, and how institutional-versus-retail-heavy was the actual allocation book. In the event, SpaceX priced at $135, closed Day 1 at $160.95 (+19%) and reached $225.64 on June 16, then fell back below its $135 IPO price by mid-July, trading around $113 on July 25 (an all-time low of $110.85 on July 23). The rocky debut is a data point on whether the wave has the institutional backstop bulls expected. Historical data shown; past performance does not indicate future results.

This question comes up enough in our inbox that it deserves its own section. The short version: probably yes, but the path is narrower than the headline 30% retail-allocation number suggests.

SpaceX's roadshow reportedly routes retail allocation through Robinhood IPO Access, Fidelity, and Charles Schwab. (StockCram is not affiliated with any brokerage mentioned.) Each channel sets its own eligibility (minimum account balances, account history, sometimes invitation-only access) and none of them guarantees a fill. "Retail allocation available" is not the same thing as "every retail account that requests 100 shares will get 100 shares."

The 30% figure itself is worth a careful read. The headline is that SpaceX is setting aside up to 30% of the offering for retail, much higher than the typical <10% on a mega-IPO. But "the offering" is the shares sold at the IPO price, not the float that trades on Day 1, and the 30% is spread across all eligible retail investors using the participating brokerages combined. Demand will likely exceed allocation, in which case fills are partial or zero.

Three realistic 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 and submission doesn't guarantee a fill. The second is buying on the open market on June 12, once SpaceX trades on NASDAQ as SPCX; anyone with a brokerage account can buy at the market price, which may be materially above or below the 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 SpaceX exposure automatically. That's the passive bid we covered earlier, working in your favor instead of against you.

One caution on the open-market path. First-day mega-IPO prices are unusually volatile. Aramco opened flat-to-down. Meta closed near its IPO price on Day 1 but cratered weeks later. Alibaba popped 38% on Day 1. There is no reliable pattern for which way Day 1 breaks, even when the IPO is broadly considered hot.

None of the three paths is a recommendation. The map exists so readers can plan rather than panic-decide on listing day; whether SpaceX (or any of the three IPOs) belongs in a specific portfolio depends on the portfolio, not on whether the headline is notable.

Of the three filings, Anthropic's is the most extraordinary on the numbers, and the easiest to misread on the valuation.

Anthropic submitted its confidential draft S-1 on June 1, 2026, and made its S-1 public on October 26, 2026 (SEC-filed, S-1), proposing the ticker ANT on the Nasdaq Global Select Market (Anthropic has applied to list; approval comes later). It names Goldman Sachs and Morgan Stanley as the lead underwriters, at the head of a syndicate that includes J.P. Morgan. It leaves the price range, the number of shares and the listing date blank. Our full read of the Anthropic S-1 goes through the filing section by section. If it prices near its last private valuation of $965 billion (company-stated, set by the May 2026 Series H), it would be among the most valuable companies ever to go public, a short list that includes Saudi Aramco (2019) and SpaceX (2026). That's the procedural baseline. What gets misread is the valuation everyone keeps quoting.

The widely-cited "$965 billion Anthropic IPO valuation" is not an S-1 target. It's the post-money valuation from Anthropic's Series H round, which closed May 27–28, 2026 on a $65 billion raise. The S-1 doesn't set a target either. The public filing of October 26 leaves the price range blank, and a later amendment fills it in. (A company that filed a confidential draft must file publicly at least 15 days before its roadshow starts, under the SEC's draft-filing rules.) So when headlines say "Anthropic going public at $965B," what's happening is media inference from the last private round, not a number Anthropic has filed with the SEC. The distinction matters because bears comparing $965B to revenue and bulls modeling forward IPO pricing may not be looking at the same number at all.

What is extraordinary is the revenue trajectory. Anthropic went from an $87 million run-rate in January 2024 to a $47 billion run-rate in May 2026, roughly 500× in about 28 months. Claude Code alone is reported at a $2.5 billion run-rate (Simon Willison, May 29, 2026; CNBC, May 28, 2026). That curve is the bull case condensed into a single chart, and the bear case is one observation about it: every published version of the chart has to compress the early months into a flat line near zero because the y-axis has to span from $87 million to $47 billion. The visual is genuinely hard to draw without distorting it, which is part of why pre-IPO valuation arguments around Anthropic keep talking past each other.

Drawn as the literal hockey-stick it is, the trajectory is hard to argue with, and equally hard to extrapolate:

Every argument about Anthropic's $965B valuation begins with this curve.

The share structure is unusual, and the S-1 (SEC-filed) now spells it out. Anthropic plans a five-class stock structure. Class A is the class sold to the public, with one vote per share. Class N has no vote except where the law requires one, and is held mainly by strategic business partners. Class T is a single share held by the Long-Term Benefit Trust, an independent body whose trustees may not own Anthropic shares; it elects four of the seven directors after the IPO (one of those four seats is vacant). Class F is a single share held by the seven co-founders through Founder LLC, and it carries 50.1% of the voting power. Class E is for employees and votes only on narrow matters. In plain terms, the founders' share decides most stockholder votes and the Trust picks the board majority. The filing says holders of Class A stock "generally will not be able to affect the outcome of any matter submitted to a vote of our stockholders or the election of our directors, regardless of how they vote." That is a more restrictive arrangement than Google's or Meta's dual-class setups.

The S-1 replaces earlier margin reporting with filed numbers (SEC-filed, S-1; the 2026 figures are unaudited). Anthropic reported a GAAP operating loss in every year and six-month period it presents, including a $693 million operating loss for the first half of 2026. The second quarter of 2026 alone showed GAAP operating income of $974 million on $11.6 billion of revenue, the only quarter in the filing's quarterly table with an operating profit. The net loss is far larger: $80.7 billion for the first half of 2026, mostly because the value of convertible promissory notes held by Amazon rose with Anthropic's valuation. Only the company's non-GAAP "adjusted" profit measures were positive for the half-year (GAAP operating cash flow was also positive, $3.9 billion). (Before the filing, The Information had reported a Q2 operating profit of about $559 million on $10.9 billion of revenue.) Inference gross margin is reportedly improving from ~38% to 70%+ over the next two years. Set against that is the compute-concentration risk: the S-1 says Anthropic agreed to spend up to $120.5 billion with SpaceXAI, SpaceX's AI unit, over terms running into 2029, about $3.1 billion a month once all capacity is delivered, though after early 2027 either side can cancel on 90 days' notice. Before the filing, a KeyBanc analysis was reported to put AWS at about 60% of compute spending (a pre-filing estimate, not an S-1 figure). Anthropic also has compute deals with Google, Microsoft, AMD and others, per the S-1, so a handful of large partners supply most of Anthropic's capacity.

On the multiple itself: $965B against a $47B run-rate is about 20.5× revenue, a run-rate multiple on the private $965 billion valuation, not an IPO price. On filed revenue for the 12 months to June 30, 2026 (about $19.7 billion), it would be about 49× (our arithmetic). For context, Nvidia trades around 25× sales, Snowflake around 12×, Microsoft around 13×. So Anthropic's multiple is at the upper end of comparable enterprise software, not absurd against its peers, but not cheap either. That valuation only makes sense if you believe the $47B run-rate is going somewhere much bigger, which is exactly the assumption every side of the debate is stress-testing.

OpenAI's IPO is the most strategically loaded of the three, and the one we know least about.

Reports indicate OpenAI submitted a confidential S-1 on June 8, 2026, off a last private valuation of $852 billion (Series H, March 2026, $122 billion round). Since then OpenAI has delayed: recent reporting (Bloomberg, June 26, 2026) now points to a 2027 listing rather than a 2026 debut, citing market volatility, SpaceX's rocky public debut, and CEO Sam Altman's insistence on a roughly $1 trillion listing floor. Altman has publicly said the company is "not focused on timing." So the filing is company-confirmed, even though the draft S-1 itself is not yet on the public record. The public S-1 (due at least 15 days before the roadshow, under the SEC's rule for confidential draft filers) is the moment when actual numbers, governance structure, and Microsoft's exact equity stake stop being inference and start being prospectus statements. Until then, almost every specific figure in OpenAI coverage is sourced to leaks or analyst estimates rather than filings.

The leaked internals tell a striking story. OpenAI is reportedly projecting a $14 billion 2026 operating loss and not expecting profitability until ~2030 (The Information). ChatGPT consumer revenue is estimated at ~$12 billion, the same figure that anchors the broader AI bubble revenue-gap debate (Article 1 walked through this in more detail).

The Microsoft governance complication is the part nobody else has had to disclose in an S-1 before. Microsoft's $13+ billion of OpenAI investment reportedly grants it ~49% economic interest in the for-profit subsidiary, and OpenAI's non-profit-controls-for-profit corporate structure has no clean precedent in a public-markets context. How the amended S-1 explains it will be among the most-read pages of any prospectus this year, both because it determines what shareholders are actually buying, and because it sets a template every future AI-lab IPO will be measured against.

In short: OpenAI carries the largest valuation in the wave, the lowest current profitability, the most complex governance, and the deepest entanglement with the broader bubble debate. If you wanted to design an IPO that was simultaneously the bull case (huge revenue, huge growth, brand-name AI leader) and the bear case (huge losses, governance complications, sentiment-driven), it would look very much like this one.

The piece almost no beginner-facing coverage is explaining clearly is this: passive index funds are going to mechanically buy a meaningful chunk of these companies whether their managers think the price is right or not, but how much and via which indices changed materially on June 4, 2026.

The mechanic worked as expected. On May 1, 2026, NASDAQ implemented a new "Fast Entry" rule for the NASDAQ-100 index methodology. Newly listed companies that rank in the top 40 by market cap can now enter the index after just 15 trading days of seasoning, with no prior liquidity requirements. Previously, names typically had to season for around six months. FTSE Russell followed with parallel fast-entry rules, making SpaceX eligible for both the Russell US Equity Indexes and the FTSE Global Equity Index Series. SpaceX was added to the NASDAQ-100 on June 22, 2026, as part of the quarterly rebalance.

Visually, the NASDAQ-100 mechanic looks like a 15-trading-day countdown:

Once a top-40 IPO lists on NASDAQ, every passive NASDAQ-100 tracker is required to buy it within 15 trading days. The fund manager doesn't get to decide whether the price is right.

The S&P 500 mechanic is the one that didn't materialize. On June 4, 2026, three days before this article's publication, S&P Dow Jones announced after a public consultation that it would not relax the S&P 500's existing requirements (profitability, 12-month seasoning, and investible-weight-factor minimums). That's a hard no, not a delay. SpaceX, with $4.94 billion in 2025 net losses on the books, can't be considered for S&P 500 inclusion until at least mid-2027, and only if it becomes GAAP-profitable by then. Anthropic and OpenAI face the same gating. Bloomberg Intelligence estimates that S&P fast inclusion would have driven roughly $14 billion of forced passive buying into SpaceX alone. That's the bid that won't happen.

Even without S&P 500 inclusion, the buying pressure is meaningful. QQQ alone tracks roughly $300 billion in AUM, and total NASDAQ-100 tracker funds add another several hundred billion on top of that. If SpaceX enters the NASDAQ-100 at a ~3% weight (reasonable for a $1.75T name), that translates to a low-double-digit-billions mechanical bid within 15 trading days of listing. Anthropic and OpenAI at ~1.5–2% weights each would draw less individually but compound the wave's total mechanical demand into the tens of billions. Smaller than the $4–7T combined figure that was floating around when S&P was thought to be in play, but still a structural tailwind that wouldn't exist without the rule change.

That buying is not optional. Index funds are required by their mandate to track their benchmark. If the benchmark adds a new constituent, the fund buys.

The bear reading came from Fortune (June 2, 2026): "If S&P Dow Jones rewrites its listing rules, SpaceX and Anthropic will benefit, investors won't." The bear argument was that forced inclusion would pump prices artificially: active managers wouldn't have bought at these valuations, but passive funds would have no choice. Two days after that piece ran, S&P Dow Jones effectively pre-empted the concern by holding the line. The bull reading is that NASDAQ and FTSE Russell's rule changes are correcting an outdated methodology, because modern strategic companies stay private longer (Anthropic was founded in 2021) and the old seasoning rules were systematically excluding the most important newcomers. S&P's stance is that the methodology shouldn't be rewritten for size alone, even when the size is unprecedented.

The cleanest historical comp is Tesla's December 2020 inclusion in the S&P 500. S&P Dow Jones' own indexology notes and contemporaneous Goldman Sachs / Morgan Stanley desk analyses put the required mechanical buying at roughly $51 billion, and the stock rallied about 70% in the six months that followed. Was that real demand, or index mechanics? The most-cited academic post-mortems land on "both, in roughly equal measure." Even the bears didn't dispute the mechanical bid happened. They disputed what it meant. The same disagreement is now hanging over the AI IPO wave, but with the S&P piece taken off the table the disagreement is more contained. The forced bid via NASDAQ-100 and FTSE Russell is real. Whether it's a tailwind, a partial bubble, or just a methodology fix is what the next 12 months will sort out.

Every mega-IPO debate reaches for historical parallels. Three are worth knowing, quickly, because the table below holds most of the numbers.

Saudi Aramco (Dec 2019) is the closest size comparison: $1.7T valuation, $29.4B raise (with greenshoe), then ~+15% over the next six years while sector peers returned 55–65% and the S&P 500 returned 100%+. Being the biggest IPO doesn't make a stock the best buy. Size attracts attention; post-IPO performance is its own question.

Meta (May 2012) is the best lockup expiration precedent: IPO'd at $38, bottomed at $18 by September (–53%), didn't reclaim $38 until August 2013. But here's the part most coverage skips: Meta's biggest lockup-expiry (November 2012, ~800M shares) saw the stock rally +10% on the day. Same company, two lockups, opposite outcomes. Lockup direction is path-dependent.

Alibaba (Sep 2014) ran +220% by 2020, then lost ~65% peak-to-trough by 2022, almost entirely from China's regulatory crackdown, not the underlying business. Post-IPO returns can be dominated by exogenous factors that have nothing to do with fundamentals.

The pattern is variability. Aramco underperformed. Meta crashed then recovered. Alibaba ran then collapsed. Anyone telling you with confidence what SpaceX or Anthropic will do post-IPO is leaning on a pattern history doesn't actually offer.

Historical data shown; past performance does not indicate future results.

Independent of whether you think this wave is brilliant or reckless, it's worth knowing who wins regardless. IPOs aren't neutral events. They create immediate, structural winners across the financial system.

Six categories of winners, all collecting from the moment the IPO bell rings:

Each of these stakeholders profits whether the stock subsequently rises or falls. The list also doubles as a guide to whose forecasts you might want to discount accordingly.

The investment banks running the offerings. Goldman Sachs and Morgan Stanley are leading both Anthropic and SpaceX's syndicates (with JPMorgan in supporting roles). Underwriters typically take 4–7% of the IPO proceeds as their fee. On a $75B SpaceX raise, that's potentially $3–5 billion in fees split across the syndicate. Add Anthropic and OpenAI raises and the combined underwriting revenue could be the single largest IPO-fee year for Wall Street since 1999. Goldman and Morgan Stanley's 2026 earnings will reflect this whether the stocks subsequently rise or fall.

The exchanges. NASDAQ (where all three are reportedly listing) collects listing fees plus ongoing market-data and trading revenue from each name. Adding three top-40-by-market-cap members to its flagship NASDAQ-100 index is a structural prestige boost. NYSE loses, NASDAQ wins.

Passive index funds and their managers. This sounds counterintuitive: index funds are buyers, not sellers. But ETF issuers (BlackRock's iShares, Vanguard, State Street) collect management fees as AUM grows. The mechanical buying we covered earlier doesn't just move stock prices; it also flows into the fee base of the firms running the funds. The index machine has a vested interest in big new constituents.

Retail brokerages with IPO Access programs. Robinhood, Fidelity, and Charles Schwab all get user-acquisition wins from SpaceX's 30% retail allocation. (StockCram is not affiliated with any brokerage mentioned.) For Robinhood specifically, being the publicly-marketed retail channel for the largest IPO in history is a major brand event regardless of the stock's subsequent performance.

Existing private shareholders. Anthropic's large strategic investors (Amazon, Google and Microsoft, which the S-1 says "have made significant equity investments"; it does not give their ownership percentages) see their private stakes become publicly-tradable. Same story for SpaceX's prior backers (Sequoia, Fidelity, Founders Fund) and OpenAI's (Microsoft, Tiger Global, others). These are paper-to-cash conversion events, with the timing controlled by lockup expirations.

Employees with equity. Anthropic had about 5,300 employees at September 30, 2026 (SEC-filed, S-1); OpenAI about 2,500; SpaceX north of 13,000. Most have meaningful equity stakes. An IPO doesn't immediately liquefy that equity. Lockups delay most insider sales: Anthropic's S-1 sets staged lockups that last up to 180 days for most holders and up to 365 days for the co-founders and some holders of more than 0.5% of the shares, with partial early releases along the way. What the IPO does is convert illiquid private stock to a publicly-traded asset that can eventually be sold. The wealth-creation impact at the company level is substantial.

Knowing who wins regardless tells you something useful about who's incentivized to keep the wave moving, and whose forecasts you might want to discount accordingly.

Mainstream coverage often boils the bull case down to "AI is hot." The actual argument has named voices and specific claims.

Daniela Amodei, President of Anthropic, used a June 4, 2026 TechCrunch interview to address pre-IPO skepticism directly. Her core point was that the revenue is real and growing: Claude Code's $2.5 billion run-rate is enterprise demand from named customers, not vibes, and a continued trajectory would justify even aggressive valuations. Wedbush's Dan Ives, quoted in Fortune (June 2, 2026), called the Anthropic filing the "opening of the floodgates" for AI IPOs, a framing his desk has held publicly across the AI complex for over a year. On the institutional side, PIMCO's and BlackRock's June commentary (collated by TradingKey) is bullish on the AI infrastructure capex cycle; when two of the world's largest asset managers tell their clients to expect continued acceleration, the active-versus-passive money is broadly aligned with the wave rather than fighting it.

The strongest single point in the bull case is structural: this isn't 1999. Jay Ritter's IPO database at the University of Florida documents that only 28% of 1999 IPOs and 21% of 2000 IPOs had positive net income in their first year as public companies. The current wave looks structurally different: SpaceX has launch contracts and Starlink ARPU, Anthropic has a $47B run-rate with reportedly improving gross margins, and OpenAI has roughly $12B in ChatGPT consumer revenue. None of them are pets.com. That doesn't immunize them from drawdowns, but it changes the cash-flow math at the bottom of any selloff.

The index-mechanics piece reinforces part of the bull framing, though after the June 4 S&P decision, the bull side has to acknowledge it lost a meaningful amplifier. The new NASDAQ-100 and FTSE Russell rules still read as indexes catching up to a reality where strategic companies stay private far longer; the old seasoning rules were systematically excluding the most important newcomers. Forced inclusion into NASDAQ-100 and FTSE indices, on the bull reading, isn't artificial pumping but a methodology fix that was overdue. The bulls' weaker hand is that S&P Dow Jones explicitly declined to adopt the same view, holding the S&P 500 to its existing profitability and seasoning rules.

SpaceX's 30% retail allocation is treated by bulls as a structural shift rather than a marketing decision. It's the first time U.S. retail investors will have direct IPO-price access to a trillion-dollar private-tech name, and that broadens who participates in the price discovery from Day 1.

The bear case has named voices and dated arguments. Timing, valuation, and historical pattern all point to late-cycle behavior.

Michael Burry has been the most direct, posting through May and early June 2026 on his Substack "Cassandra Unchained". His core line: "There is no guarantee, and not even a strong likelihood, that Anthropic is long-term worth anywhere near $1 trillion." He calls current AI demand a "false signal." Notable nuance, and a surprise, is that Burry does not think the IPOs themselves will mark the bull-market top. That's a position about valuation, not a crash call. Jeremy Grantham (GMO), interviewed in Fortune on May 19, 2026, used the phrase "blood in the streets," and has consistently put the probability that the AI bubble doesn't burst at "slim to none" across multiple appearances. Grantham's case is broader than the IPO wave specifically, but the wave is the most visible expression of what worries him.

The structural argument is harder to wave away. Mega-IPO clusters near market tops have a track record. Jay Ritter's IPO database shows only 28% of 1999 IPOs had positive net income in year one: the dot-com peak's signature wasn't unprofitability alone, it was unprofitable companies coming public in a cluster after a long bull run. Three trillion-dollar IPOs in four months at all-time highs in a single concentrated sector is the kind of thing that, in hindsight, often gets pointed at as the moment that mattered.

The valuation math compounds the timing concern. Anthropic at the $965B Series H number against a $47B run-rate is about 20.5× (a run-rate multiple on a private valuation; about 49× filed trailing-12-month revenue, our arithmetic), the upper end of comparable enterprise software (Nvidia ~25×, Snowflake ~12×) and a multiple that requires continued ~doubling of revenue year over year. If the pace breaks at any point in the next two or three years, multiple compression alone can produce 40–60% drawdowns even while the underlying business stays healthy. Layered on top is competitive risk: Anthropic competes with OpenAI (also filing), Google Gemini (free for many use cases), Meta Llama (open-source), Mistral, and xAI (now part of SpaceX). The "winner-take-most" assumption that supports premium multiples may not hold across the full stack, and coding, Claude Code's strength, is one of the most contested verticals.

On June 4, S&P Dow Jones publicly declined to relax S&P 500 eligibility rules for the wave, holding the line on profitability and seasoning requirements that SpaceX, Anthropic, and OpenAI all currently fail. That decision strips roughly $14 billion of forced S&P 500 buying out of SpaceX's first-year demand stack alone (per Bloomberg Intelligence), a quantifiable headwind that didn't exist a week ago.

The most disarming bear quote of the entire research pass came not from a bear but from the bull CEO. Dario Amodei, on Dwarkesh Patel's podcast in February 2026 (episode; Fortune coverage February 14): "If I'm just off by a year in that rate of growth, or if the growth rate is 5x instead of 10x, then you go bankrupt." When the CEO of an AI lab that has since filed to go public (its price range is still blank) publicly flagged bankruptcy as a tail risk in February 2026, the bear case was conceded in part by the company itself.

A possibility most IPO coverage skips: history suggests both sides may end up being right at the same time, just measuring different things on different time horizons.

The framing is unusual because it lets both sides keep their core argument intact:

Bulls and bears aren't disagreeing about the numbers, they're disagreeing about which numbers will matter three years from now. That distinction is what makes "both sides right" historically common.

The internet was a real, world-changing technology and the dot-com bubble was real. Both descriptions of 1995–2002 hold up. The technology was transformative; the stock-market expression of it was a bubble that destroyed enormous amounts of capital. Cisco was the dominant, profitable infrastructure company at the heart of the internet revolution, and Cisco's stock still fell about 85% from its 2000 peak. Those facts coexist without contradicting each other.

The mega-IPO comparable suggests the same dual outcome can apply at the company level. Saudi Aramco is a real company that pumps real oil and generates real cash; it was the biggest IPO in history; and it underperformed the S&P 500 by roughly 4× over the six years that followed. The company is structurally important. The stock was a poor buy at IPO. Neither claim cancels the other.

If that's how the AI IPO wave resolves, the most likely outcome is that the companies remain strategically important and deliver disappointing 5-year stock returns relative to the S&P 500. SpaceX could be a Tesla-style story where the company is foundational but the stock has multi-year drawdowns along the way. Anthropic could be a Cisco analogue: dominant, still down 70%+ from peak at some point in the next decade. OpenAI's governance complications could compound either outcome.

In that scenario, Burry could be right that current valuations leave no margin for execution risk, while Daniela Amodei is simultaneously right that the underlying business compounds for decades. The bears would be right about prices in the next few years; the bulls would be right about long-term importance. The two views aren't actually in conflict. They're measuring different things on different clocks.

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

The wave isn't three independent IPOs. Each one signals to the next. SpaceX's first day was the loudest single signal in the sequence, and the systemic consequences of strong vs. weak pricing are worth thinking through. As it turned out, SpaceX priced at $135, popped, then slid below its IPO price by mid-July, and the sequence has broadly followed the weaker-case path described below: OpenAI pushed its listing toward 2027 while Anthropic made its S-1 public on October 26, 2026, with the listing date still blank. The framework is retained here for how to read a debut's knock-on effects.

If SpaceX prices strong (open materially above $135, sustained institutional bid, NASDAQ-100 inclusion absorbs cleanly within the first 15 trading days) the cascade likely goes something like this. Anthropic's underwriters get pricing power, and the amended S-1 valuation (currently media-inferred at $965B from the May Series H) likely lands at or above that figure rather than below it. OpenAI's confidential filing moves toward a firmer listing timeline rather than slipping further out. A second cohort of late-stage AI companies (xAI's former peers, infrastructure plays, Anthropic's competitive layer) starts evaluating its own IPO timing. The wave widens; the bull thesis gains a tape-tested data point.

If SpaceX prices weak (open at or below $135, heavy down-halts in the first session, NASDAQ-100 inclusion meets a soft mechanical bid) the cascade goes the other direction. Anthropic's underwriters lose pricing power and the amended S-1 may signal a more conservative target. OpenAI may delay disclosure and let SpaceX's tape mature before committing to a date. Late-stage AI companies pause IPO planning. Broader AI-sentiment indicators (cloud-AI revenue growth deceleration, hyperscaler capex revisions) start being scrutinized more aggressively, and the bear thesis gets the validation it's been waiting for.

Neither scenario is automatic. Mega-IPOs have surprised in both directions historically: Meta opened modestly above its IPO price and still cratered weeks later; Aramco opened flat and then materially underperformed for years. The point isn't to predict which scenario unfolds; it's to know in advance which signals would matter and which would just be noise.

Strip away the disagreement and three points keep showing up in both camps' research: the wave's scale is unprecedented, the NASDAQ-100 Fast Entry mechanic will apply real mechanical buying (now without the S&P 500 amplifier after S&P's June 4 decision), and Anthropic's revenue trajectory is real (Burry disputes the valuation, not the numbers).

Which narrows the actual question. The reality of AI is settled across both camps. The scale of the wave is settled across both camps. The unresolved question is whether current target valuations already reflect the risks both camps see. Bears say no: valuations leave no margin for execution issues, and the loss of S&P fast entry removes a tailwind that was already priced in. Bulls say yes: valuations reflect achievable growth from companies actually delivering, and the NASDAQ-100 mechanic is intact. That gap is what the next twelve months of revenue numbers and price action will close.

Most IPO articles end with a verdict. We won't, and the reason is practical.

Mega-IPO outcomes have historically gone every direction. Aramco underperformed for years. Meta crashed then recovered. Alibaba ran then collapsed for reasons unrelated to its business. Anyone telling you with confidence what SpaceX, Anthropic, or OpenAI will do at one-year, three-year, or five-year horizons is leaning on a pattern history doesn't actually offer.

A more useful question than "is the wave a bubble?" is what would have to be true for each case to play out? For the bull case to hold, AI revenue growth needs to continue roughly at current pace, the new index mechanics need to translate into real long-term institutional support, and the broader AI economy needs to deliver measurable productivity gains at non-tech S&P 500 companies. For the bear case, revenue trajectories need to break, lockup expirations need to test holding patterns, and the index-inclusion bid needs to fade once initial buying is done. Watching those specific things, the watchlist a few sections back, is more useful than watching the daily SpaceX close.

The most disarming single line from the entire research pass came from the bull side. Dario Amodei, on the Dwarkesh Patel podcast (February 2026): "If I'm just off by a year in that rate of growth, or if the growth rate is 5x instead of 10x, then you go bankrupt." When the CEO of an AI lab that has since filed to go public (its price range is still blank) publicly flagged bankruptcy as a tail risk in February 2026, the framing of "settled bull thesis" gets harder to maintain.

For beginners specifically: read the S-1s when they become public (especially OpenAI's, which will be the most strategically loaded). Watch the validators in the watchlist above. Decide for yourself whether you want exposure, and at what position size you'd be comfortable holding through a meaningful drawdown.

For deeper background on stock valuation, see the Foundations course. To apply a multiple once these companies trade, use the P/E ratio calculator.

Five common misreads. None of these are dumb questions: they're the questions the headlines invite.

"If I buy on day one, I'm getting in at the IPO price." No. The IPO price is allocated to institutional clients of the underwriters. Retail investors typically buy at the market price after the first trade, which can be above the IPO price (a "pop") or below it (a "break"). The IPO price is what insiders get; the open price is what you get.

"A bigger IPO is a better company." Saudi Aramco was the biggest IPO in modern history in 2019 and underperformed the S&P 500 by roughly 4× over the six years since. Size attracts attention; quality is a separate question.

"Lockup expirations always crush the stock." Sometimes. Meta hit its post-IPO low at its first lockup expiration in 2012. But Meta's biggest lockup (November 2012, ~800M shares) actually rallied +10% on the day. Path-dependent.

"Confidential filings hide bad news." No, confidential filings are a JOBS Act provision. Roughly 80% of recent IPOs filed confidentially first. It lets companies refine their S-1 drafts with the SEC privately before the offering becomes public. Anthropic and OpenAI filing confidentially is procedurally normal, not suspicious.

"Index inclusion = automatic gains." Mostly tailwind, but not magic. Tesla rallied ~70% after its S&P 500 inclusion in December 2020 with an estimated $51B of mechanical buying behind it (S&P Dow Jones indexology notes; bank-desk estimates at the time). 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.

For more current-market reads on the broader picture, the rest of the Market Explainers series covers the AI bubble debate and other confusing market moments with the same both-sides approach.

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

Update (October 27, 2026), corrections: Anthropic made its S-1 public on October 26, 2026 (SEC-filed), and the filing shows this page had several things wrong. We corrected them today. (1) Ticker. Our August 8, 14 and 21 notes said Anthropic would list as ANTH. That was wrong. The S-1 proposes ANT on the Nasdaq Global Select Market, and the listing is applied for, not yet approved. We removed ANTH from those notes. (2) Share classes. We described Class A, Class B and Class T, and said the Trust's board control grows over time. That was wrong too. The filed classes are A (one vote per share), N (no vote, held mainly by strategic partners), T (one share held by the Long-Term Benefit Trust, which elects four of the seven directors after the IPO), F (one share held by the co-founders, with 50.1% of the vote) and E (employees, voting only on narrow matters). There is no Class B, and the filing does not describe the Trust's control growing over time. (3) Profitability. We said or implied Anthropic was profitable. On a GAAP basis it reported an operating loss and a net loss in every year and six-month period in the filing, including a $693 million operating loss and an $80.7 billion net loss for the first half of 2026 (unaudited). Only non-GAAP adjusted measures were positive for that half-year, and the second quarter of 2026 alone showed $974 million of GAAP operating income. (4) Trading. An FAQ answer said Anthropic was "currently trading" at about 20.5 times revenue. It is not trading, and the price range is blank. We also rewrote that FAQ question, which read like a buying question, into one about what the S-1 tells a beginner. (5) Lockup. We cited a single 180-day lockup. The S-1 sets staged lockups of up to 180 days for most holders and up to 365 days for the co-founders and some holders of more than 0.5% of the shares, with early releases along the way. (6) Filing lead time. We said a confidential filer goes public about 21 days before the roadshow. The SEC rule is at least 15 days. We also updated Anthropic's headcount (about 5,300 at September 30, 2026), its lead underwriters (Goldman Sachs and Morgan Stanley), its SpaceXAI compute terms, and removed investor ownership percentages the S-1 does not give.

Update (October 16, 2026): SpaceX (SPCX) was quoted around $144-148 in recent market data (Coinbase), a market value of about $1.91 trillion and below the $160-163 range noted a week earlier. Its 52-week range stays $104.83 to $225.64. Anthropic's listing is still reported for October or later, and a public S-1 had not turned up in the trackers we checked; the company has not announced an exchange, ticker or price. No new OpenAI timing has been reported since CFO Sarah Friar's August 19 comment about 2027. Historical data shown; past performance does not indicate future results.

Update (October 9, 2026): SpaceX stock is trading around $160-163 as of today, continuing its recovery from the August 3 low of $104.83. When its first major lockup expired on August 6, releasing roughly 911.5 million shares (about $99 billion in value based on the prior day's close), shares rose 6.1% that day, defying expectations that the added supply would pressure the price. On July 7, SpaceX joined the NASDAQ-100 as the Fast Entry rule intended, triggering mechanical buying from index funds. The October listing timeline for Anthropic remains on track (Reuters reported September 5 that the roadshow will begin mid-October at the earliest, with the listing expected days before the November midterm elections). OpenAI's 2027 timeline is company-confirmed: CFO Sarah Friar told employees on August 19 that OpenAI "will be a public company in 2027." The wave's sequence is now settled: one member public and recovering, one proceeding toward October, one confirmed for 2027.

Update (September 25, 2026): SpaceX stock is trading around $148 as of today, holding its recovery from the August 3 low of $104.83. The stock rose 6.1% on August 6 when its first major lockup expired, releasing roughly 911.5 million shares (about $99 billion in value based on the prior day's close), defying expectations that the added supply would pressure the price. SpaceX joined the NASDAQ-100 on July 7 as the Fast Entry rule intended, triggering mechanical buying from index funds. Anthropic's October listing timeline remains on track (Reuters reported September 5 that the roadshow will begin mid-October at the earliest, with the listing expected days before the November midterm elections). OpenAI's 2027 timeline is company-confirmed: CFO Sarah Friar told employees on August 19 that OpenAI "will be a public company in 2027." The wave's sequence is now settled: one member public and recovering, one proceeding toward October, one confirmed for 2027.

Update (September 18, 2026): SpaceX stock closed at $154.81 on September 17, continuing its recovery from the August 3 low of $104.83. The stock rose 6.1% on August 6 when its first major lockup expired, releasing roughly 911.5 million shares, defying expectations that the added supply would pressure the price. SpaceX joined the NASDAQ-100 on July 7 as the Fast Entry rule intended, triggering mechanical buying from index funds. Anthropic's October listing timeline remains on track (Goldman Sachs, JPMorgan, and Morgan Stanley are leading the underwriting, with investor meetings held in mid-July). OpenAI's 2027 timeline is company-confirmed: CFO Sarah Friar told employees on August 19 that OpenAI "will be a public company in 2027." The wave's sequence is now settled: one member public and recovering, one proceeding toward October, one confirmed for 2027.

Update (September 11, 2026): SpaceX stock is trading around $150 as of September 11, holding its recovery from the August 3 low of $104.83. Anthropic's October listing timeline has been refined: Reuters reported September 5 that the roadshow will begin mid-October at the earliest, with the listing expected days before the November midterm elections. OpenAI's 2027 timeline remains company-confirmed via CFO Sarah Friar's August 19 statement. SpaceX joined the NASDAQ-100 on July 7, 2026, triggering the mechanical buying the Fast Entry rule was designed to create.

Update (September 4, 2026): SpaceX stock has continued its recovery, trading around $149.74 in early September after rebounding from its August 3 low of $104.83. The stock was added to the NASDAQ-100 on June 22, 2026, as expected under the Fast Entry rule. Anthropic's October listing remains on track, with some investor reports (Fortune, August 13) citing a potential $2 trillion valuation target, though the company has not confirmed this figure. OpenAI's 2027 timeline is now company-confirmed: CFO Sarah Friar told employees on August 19 that OpenAI "will be a public company in 2027," ending speculation about a possible 2026 debut. The wave's sequence is now settled: one member public and recovering, one proceeding toward October, one confirmed for 2027.

Update (August 21, 2026): SpaceX stock has recovered, closing at $140.00 on August 14 after rebounding from its August 3 low of $104.83. The stock reached its first major lockup expiration on August 6, releasing roughly 911.5 million shares (about $99 billion in value based on the prior day's close), but closed higher that day, up 6.1%, defying conventional expectations that extra supply would depress the price. Anthropic's October listing remains on track, with investor meetings held in mid-July. OpenAI's delay to 2027 is now widely confirmed across Bloomberg, The New York Times, and Reuters reporting (June 26-27), with CEO Sam Altman insisting on a $1 trillion valuation floor and calling any reduction a "non-starter." The wave's divergence continues: one member public and volatile, one proceeding, one delayed.

Update (August 14, 2026): SpaceX stock has recovered, closing at $140.00 on August 14 after rebounding from its August 3 low of $104.83. The stock reached its first major lockup expiration on August 6, releasing roughly 911.5 million shares (about $99 billion in value based on the prior day's close), but closed higher that day, up 6.1%, defying conventional expectations that extra supply would depress the price. Anthropic's October listing remains on track, with investor meetings held in mid-July. OpenAI's delay to 2027 is now widely confirmed across Bloomberg, The New York Times, and Reuters reporting (June 26-27), with CEO Sam Altman insisting on a $1 trillion valuation floor and calling any reduction a "non-starter." The wave's divergence continues: one member public and volatile, one proceeding, one delayed.

Update (August 8, 2026): SpaceX stock continues to trade below its $135 IPO price, closing at $133.11 on August 8 after hitting a 52-week low of $104.83 on August 3. The stock reached its first major lockup expiration on August 6, releasing roughly 911.5 million shares (about $99 billion in value based on the prior day's close). Anthropic's October listing remains on track, with investor meetings held in mid-July. OpenAI's delay to 2027 is now widely confirmed across Bloomberg, The New York Times, and Reuters reporting (June 26-27), with CEO Sam Altman insisting on a $1 trillion valuation floor and calling any reduction a "non-starter." The wave's divergence continues: one member public and volatile, one proceeding, one delayed.

Selected primary sources for the figures and quotes used in this article. The IPO analysis is easier to follow when you've seen the actual filings and the original interviews. Links go to publication homepages and primary documents where we've verified them; specific article URLs are described inline so you can search them directly without having to trust a redirect.

Company filings / market data

• SpaceX S-1 (May 20, 2026, public): SEC EDGAR, SpaceX filings
• Anthropic Form S-1 (June 1, 2026, confidential): reported by Fortune (June 1, 2026)
• Anthropic, PBC Form S-1 (October 26, 2026, public), SEC EDGAR accession no. 0001628280-26-067168: source for the proposed ticker, share classes, lockup schedule, underwriters, headcount and filed financials
• SEC, Draft Registration Statement Processing Procedures: source for the rule that a confidential filer must file publicly at least 15 days before its roadshow
• OpenAI Form S-1 (June 8, 2026, confidential): reported by CNBC; listing since delayed toward 2027 (Bloomberg, June 26, 2026)
• NASDAQ-100 Methodology, Fast Entry rule, effective May 1, 2026: Nasdaq Global Indexes methodology page
• Bloomberg (June 3, 2026), primary source for Morgan Stanley + Goldman syndicate confirmation on Anthropic

Bear research

• Michael Burry, Substack "Cassandra Unchained", late May / early June 2026 posts on the wave; source for the $1T pushback quote
• Jeremy Grantham (GMO), Fortune interview (May 19, 2026), source for the "blood in the streets" framing
• Ed Zitron, Where's Your Ed At (May 22, 2026), data-center debt figures (referenced via Article 1)

Bull research

• Daniela Amodei, TechCrunch interview (June 4, 2026)
• Dan Ives (Wedbush), via Fortune (June 2, 2026), "opening of the floodgates"
• Dario Amodei, Dwarkesh Patel podcast (February 2026); coverage in Fortune (February 14, 2026), source for the "if I'm off by a year… bankrupt" quote
• The Information, Anthropic gross-margin and Q2 financials reporting
• TradingKey, June 2026 institutional commentary roundup (PIMCO, BlackRock positioning)

IPO research / academic

• Jay Ritter, University of Florida IPO database, dot-com IPO profitability statistics

Historical mega-IPO comparisons

• Saudi Aramco IPO retrospective: Brookings; AGBI
• Meta IPO retrospective: TechCrunch (July 31, 2013); CNN Money (November 13, 2012)
• Alibaba IPO retrospective: Yahoo Finance; FinanceCharts
• Tesla S&P 500 inclusion (December 2020): S&P Dow Jones indexology notes; contemporaneous Goldman Sachs and Morgan Stanley desk analyses

Index mechanics

• Fortune (June 2, 2026): "If S&P Dow Jones rewrites listing rules, SpaceX and Anthropic will benefit, investors won't"
• Bloomberg (June 4, 2026), S&P Dow Jones keeps mega-cap IPO rules as-is after consultation; Bloomberg Intelligence estimate of $14B in forgone forced buying for SpaceX
• CNBC (June 5, 2026), SpaceX blocked from early U.S. benchmark index entry as S&P reaffirms existing rules
• Nasdaq 2026 NDX Methodology Changes FAQ (PDF), Fast Entry implementation details
• FTSE Russell, announced parallel fast-entry rules for Russell US Equity Indexes and FTSE Global Equity Index Series

SpaceX IPO mechanics

• CNBC (June 3, 2026), SpaceX fixes $135 IPO price for roadshow, bypasses price range
• CNBC (May 20, 2026), SpaceX IPO live updates; syndicate structure

Last reviewed: October 27, 2026.