Anthropic's S-1 puts an $80.7 billion half-year loss behind a $2 trillion IPO ask
The Claude maker's filing shows $16.3 billion of first-half revenue against an $80.7 billion loss and $265.6 billion of guaranteed compute bills, and pricing for the largest IPO ever lands inside a five-week window.
Vincent Jiang · 3 min read
Anthropic$350B — Anthropic, private, latest valuation $350B, the San Francisco lab behind Claude, filed its S-1 registration statement publicly on Monday and disclosed plans to list on the Nasdaq under the ticker ANT 1. For the first time, investors outside the company can read the books behind the largest IPO ever attempted: a $2 trillion valuation that private backers hope for, with shares possibly trading by Thanksgiving on November 26 12.
That ask now meets a public market that has spent weeks repricing AI debt. So-called neoclouds like CoreWeave+4.84% — CoreWeave, up 4.84 percent today and Nebius+1.41% — Nebius, up 1.41 percent today have lost more than 30% of their value in October as credit risk rises across the data-center space 3, and prediction-market traders already put the odds of a first-day close above $2 trillion at 42%, down from 74% on September 10 4.
Growth is real, and so is the loss
Revenue jumped 1,304% to $16.29 billion in the six months ended June 30, up from $1.16 billion a year earlier, after full-year 2025 revenue of $4.59 billion 13. Third-quarter revenue was $16.8 billion 1. The growth rests on coding: Claude Code drove the acceleration, and consumption contracts, mostly non-cancelable annual or multi-year deals, made up 80% of first-half revenue 13.
First-half revenue of $16.29 billion already runs at more than three times all of 2025
Data
| Revenue | |
|---|---|
| FY 2025 | $4.59B |
| H1 2025 | $1.16B |
| H1 2026 | $16.29B |
| Q3 2026 | $16.8B |
The loss is bigger than the growth. Anthropic lost $80.7 billion in the first half of 2026, versus $12.9 billion in the same stretch of 2025, on top of a $41.9 billion loss for all of 2025 3. Most of it is paper, not cash: convertible notes, debt that can convert into Anthropic shares, are carried on the books at a value that rises with the company's own valuation, so when the valuation climbs, the charges grow too 3. Even granting that framing, buyers will price both.
The half-year loss of $80.7 billion is nearly double all of 2025's
Data
| Net loss | |
|---|---|
| H1 2025 | $12.9B |
| FY 2025 | $41.9B |
| H1 2026 | $80.7B |
The bill that must be paid either way
The commitments dwarf anything Anthropic has earned. The S-1 commits at least $265.6 billion to cloud and infrastructure over the coming years 1, including up to $120.5 billion with SpaceX+0.95% — SpaceX, up 0.95 percent today at roughly $3.1 billion a month, and at least $44.9 billion with Microsoft+1.10% — Microsoft, up 1.10 percent today between November 2026 and a date extending to 2029, a contract that cannot be canceled short of a material breach 3. Microsoft also builds and advertises competing AI models 3.
$265.6 billion of compute is committed, roughly 58 years of last year's revenue
- Estimate
Data
| Value | |
|---|---|
| Total commitments | 265.6 |
| SpaceX, up to (estimate) | 120.5 |
| Microsoft, at least | 44.9 |
MIT professor Sinan Aral told CNBC the $1.5 trillion to $2 trillion range implies 22 to 30 times revenue, and that demonstrating enterprise profitability will decide whether Anthropic succeeds or fails 3. The filing itself says revenue growth should "decline over time" 1. Five customers carried about a quarter of first-nine-month revenue, though no single one exceeded 10% 3.
What settles it
The pricing range decides the argument. If Goldman Sachs+2.39% — Goldman Sachs, up 2.39 percent today and Morgan Stanley+2.56% — Morgan Stanley, up 2.56 percent today, the lead underwriters, set it below $2 trillion, public buyers will have repriced the largest IPO in history before it trades 3. Watch the range, and the November 26 window 1. The numbers that justify the price are, for the first time, on the record 1.
One caveat on weight: an S-1 is the company's own reported figures prepared under SEC disclosure rules, not an outside audit of demand, so the document removes secrecy but not judgment 1.
Get Deals by email, free
The acquisitions, rounds and contracts that move AI money. In our daily email, every weekday.
