Anthropic is set to show prospective investors its third-quarter numbers for the first time on Wednesday, Oct. 14, at a meeting at its San Francisco headquarters, as the artificial intelligence developer moves toward what could become the largest initial public offering in history. Investors have reached in a fair value of $1.8 trillion to $2 trillion, and a roughly $100 billion offering led by Morgan Stanley, Goldman Sachs and JPMorgan Chase could reach Nasdaq before Thanksgiving. The draft prospectus describes explosive revenue growth alongside heavy losses. The quarter now in focus will help decide whether that growth is strong enough to carry the price.

A Rare Look Behind the Curtain

For a company that has spent most of its existence disclosing as little about its finances as private-market convention allows, Wednesday marks a turning point. Anthropic plans to walk prospective investors through its third-quarter financials, figures it has never before shared with that audience, at a gathering at its San Francisco headquarters. CNBC reported the plan on Tuesday, citing two people familiar with the matter. The existence of the investor day itself was not new: Bloomberg first reported on Oct. 1 that the meeting was on the calendar.

The timing is deliberate. An investor day of this kind is the stage in an IPO process where the issuer stops being a story and starts being a set of numbers that institutional money managers can model, stress-test and argue over. Prospective investors have already settled on a fair valuation range of $1.8 trillion to $2 trillion, according to Barchart. Wednesday's disclosures will either reinforce that range or force a rethink before the deal moves to a formal marketing phase.

The meetings come roughly two weeks after Reuters reviewed Anthropic's draft IPO prospectus, a document that to date offers the most detailed picture of both the company's breakneck growth and the scale of the losses that have come with it. That prospectus, however, has a status worth stating precisely, because it has been widely misdescribed.

That distinction matters for investors. A confidential draft can still change in response to SEC comments, and the figures in it have not yet been subjected to the full glare of public scrutiny that comes with a published S-1. Until that filing appears, the market is working from reporting on the document rather than the document itself.

The 2025 Numbers: Hypergrowth at a Heavy Price

By the measure that matters most to growth investors, Anthropic's 2025 was extraordinary. According to the draft prospectus Reuters reviewed, revenue grew roughly 12-fold during the year to nearly $4.6 billion. Very few companies of any size have multiplied their top line at that pace, and fewer still have done so while already generating billions of dollars in sales.

The bottom line tells a more complicated story. Anthropic recorded a net loss of $42 billion for 2025. That headline figure, though, overstates the cash damage. About $34 billion of the loss was a non-cash charge tied to remeasuring convertible notes, an accounting adjustment that typically swells when a company's valuation rises sharply, because the instruments that convert into its equity become more valuable on paper. Strip that out, and the business itself posted an operating loss of more than $8 billion.

Infrastructure is the dominant cost. Anthropic spent $7.33 billion on compute and infrastructure in 2025, equal to 58% of its operating expenses. Working backward from those two figures implies total operating expenses of roughly $12.6 billion, a calculation consistent with an operating loss of a little over $8 billion on revenue of about $4.6 billion. Looking further out, the company has committed about $518 billion to cloud, computing and infrastructure in the coming years, a sum that dwarfs its current revenue and underscores how capital-hungry frontier AI development has become.

2026: Growth Accelerates and the First Profit Arrives

If 2025 established the trajectory, 2026 steepened it. Preliminary figures show revenue of $4.73 billion in the first quarter, which on its own exceeded the company's entire 2025 total. The second quarter was larger still, at more than $11.5 billion, meaning revenue more than doubled sequentially in a single quarter.

The more consequential development for valuation-minded investors may be on the profit line. The Wall Street Journal reported that Anthropic posted its first adjusted operating profit in the second quarter, totaling $559 million. That measure excludes stock-based compensation, a significant expense at AI companies that compete fiercely for research talent, so skeptics will want to see the figure on a fully loaded basis. Still, the swing from an operating loss of more than $8 billion in 2025 to an adjusted operating profit within six months is the type of inflection that IPO buyers prize.

The momentum appears to have carried into the summer. The Financial Times reported that the company told shareholders it expects a second straight quarter of adjusted operating profit in the third quarter, the very period whose results will be presented on Wednesday.

The Road to Nasdaq

The calendar is moving quickly. Yahoo Finance reported that a formal roadshow could begin as early as the week of Nov. 9, with shares potentially trading on Nasdaq before Thanksgiving. Morgan Stanley, Goldman Sachs and JPMorgan Chase are leading an offering expected to raise about $100 billion, a sum that would by itself exceed the market value of many companies in the S&P 500.

The valuation step-up is just as striking. Reuters noted that a $2 trillion valuation would be more than double the $965 billion at which Anthropic was valued in May. The Motley Fool observed that a listing of that size would surpass SpaceX as the largest IPO in history.

Context helps here. Raising $100 billion at a $2 trillion valuation implies that only about 5% of the company would change hands in the offering. A thin float relative to total value is common for mega-cap listings, but it also means that index inclusion, lockup expirations and the pace of follow-on selling by early holders could have an outsized effect on how the shares trade once the initial excitement fades.

The Skeptics' Case

Not everyone is persuaded that the price is justified. PitchBook, writing in Morningstar, calculated that a $2 trillion valuation would equal just under 31 times Anthropic's July revenue run rate. Put another way, that multiple implies an annualized run rate of somewhat more than $64 billion at the time. Even for a company growing as fast as Anthropic, paying more than 30 times sales leaves little margin for error, particularly in a market where large technology companies are also pouring capital into competing models.

PitchBook also flagged a notable gap in the disclosure: the draft prospectus does not disclose gross margin. For an AI developer whose single largest expense is compute, that omission is significant. Gross margin is the clearest window into whether each additional dollar of revenue becomes cheaper to serve as the business scales, or whether infrastructure costs rise in lockstep with sales. Without it, investors are left to infer unit economics from the operating line.

The prospectus itself includes an unusual warning. It cautions that advanced AI could pose "catastrophic or existential risks to humanity". Risk-factor sections are often boilerplate, but language of this kind is far from standard, and it reflects how closely Anthropic's corporate identity is tied to debates over AI safety.

Why the Third Quarter Matters So Much

That backdrop is what makes Wednesday's presentation pivotal. PitchBook said third-quarter revenue "well above $16.3 billion" would strengthen the case for the valuation. Measured against second-quarter revenue of more than $11.5 billion, clearing that bar would require sequential growth of roughly 42%, a slower pace than the jump from the first quarter to the second but still exceptional for a company of this size.

PitchBook was careful not to overstate the point, adding that such a result "would not by itself establish that $2 trillion is justified". In other words, a strong quarter is necessary for the bull case but not sufficient. Investors will also be looking for evidence that the adjusted operating profit is durable, that compute spending is becoming more efficient relative to revenue, and that the enormous infrastructure commitments are matched by a credible path to demand.

Broader Implications for Markets

A listing of this magnitude would ripple well beyond Anthropic's own shareholders. A $100 billion offering would absorb a large slice of the capital that institutional investors earmark for new issues, potentially crowding out smaller deals in the weeks around it. If the shares perform well, the IPO could reopen the window for other private AI companies sitting on lofty private-market valuations. If they stumble, it could prompt a broader reassessment of how public markets price AI growth that has not yet translated into consistent profits.

There is also a strategic dimension. Anthropic's roughly $518 billion in infrastructure commitments makes it one of the largest prospective customers for cloud providers, chipmakers and data center developers. Public-market capital would help underwrite those commitments, so the reception of the offering will be watched closely across the AI supply chain, not just by those buying the stock.

What Investors Should Watch

• Q3 revenue versus $16.3 billion: PitchBook's benchmark is the clearest near-term test. A figure "well above" it supports the valuation range; a figure near or below it weakens it.
• A second adjusted operating profit: Confirmation of the profit the company has signaled to shareholders would show the second-quarter result was not a one-off.
• Gross margin disclosure: Any move to publish gross margin in the public S-1 would give investors a far better read on the economics of serving AI demand.
• The public S-1 filing: Until the draft registration becomes public, figures rest on reporting about a confidential document.
• Roadshow timing: A start as early as the week of Nov. 9 would signal confidence; any slippage could hint at pricing debate.

Risks to the Bull Case

The central risk is valuation. At just under 31 times a July revenue run rate, the offering prices in years of continued hypergrowth, and any deceleration could compress the multiple quickly. The company remains deeply loss-making on a full-year 2025 basis, its adjusted profit excludes stock-based compensation, and its $518 billion in infrastructure commitments represent a fixed burden that will persist regardless of how demand evolves. The absence of gross margin data limits visibility into unit economics. Finally, the prospectus's own warning about catastrophic AI risks is a reminder that regulatory and reputational pressures on the sector could shift in ways that are difficult to model.

The Bottom Line

Anthropic arrives at its investor day with a growth story few companies in history can match: revenue up roughly 12-fold in 2025, more than doubling again between the first and second quarters of 2026, and a first adjusted operating profit of $559 million. Against that stand a $42 billion net loss for 2025, infrastructure commitments of about $518 billion, an undisclosed gross margin and a valuation that would more than double in five months. The third-quarter numbers presented on Wednesday will not settle the debate on their own, as PitchBook made clear. But they will go a long way toward determining whether the largest IPO ever attempted lands on Nasdaq at the top of its range or is forced to make concessions on price.