Anthropic is preparing to file its S-1 publicly as soon as this month for an October listing that the company expects to match or exceed SpaceX’s $86.2 billion first-time share sale, currently the largest IPO on record. Bloomberg reported the plan on August 20, citing preparations already underway with Goldman Sachs, Morgan Stanley and JPMorgan Chase, the same trio CNBC identified in July as lining up investor meetings.
The framing here’s the point. SpaceX’s initial raise was $75 billion before the overallotment pushed it to $86.2 billion, and Anthropic’s bankers are pitching a debut sized to eclipse that number outright. Six of the company’s backers told the Financial Times its growth trajectory could support a $2 trillion valuation at debut, with one investor describing 30x revenue as a floor multiple, the kind of number that would translate an annualized $100 billion to $120 billion into a $3 trillion market cap.
The underlying figures are doing most of the work. Preliminary Q2 revenue came in above $11.5 billion against $787 million in the same quarter of 2025, and run-rate revenue hit $65 billion by the end of July. Q2 also delivered positive adjusted operating income, a talking point the roadshow will lean on hard.
The other side of the ledger is uglier. Anthropic booked a net loss of nearly $42 billion for full-year 2025, roughly five times its $8.3 billion loss in 2024, and it’s finalizing a $10 billion revolving credit facility. CEO Dario Amodei holds roughly 2% of the company. The May round raised $65 billion at a $965 billion private valuation, so the telegraphed $2 trillion mark implies the public market is being asked to double the price in five months.
CFO Krishna Rao, per Bloomberg, “skirted the question of valuation” in briefings, which is itself a signal. The blog post disclosing the June 1 confidential filing had already noted that “the number of shares to be offered and the price have not yet been set.” That’s the standard disclaimer. The gap between the disclaimer and the $2 trillion whisper is where narrative management happens.
Regulatory drag is real. The Pentagon designated Anthropic a supply-chain risk earlier this year, and a June Commerce Department export control slowed growth on Claude’s top models. Those disclosures will land in the S-1 and get priced.
The comparison worth holding is with OpenAI, valued at $852 billion in March, filed confidentially in June, and now looking at 2027 while Sam Altman holds out for a $1 trillion tag. If Anthropic clears an October debut at anywhere near the number its backers are floating, the second-mover will have set the ceiling the first-mover was waiting for.
Sources
- https://www.bloomberg.com/news/articles/2026-08-20/anthropic-expects-to-match-spacex-s-record-ipo-size-or-top-it
- https://www.cnbc.com/2026/07/15/anthropic-ipo-banks-investor-meetings.html
- https://fortune.com/2026/08/13/anthropic-ipo-2-trillion-october-largest-ever-spacex/
- https://fortune.com/2026/06/01/anthropic-confidentially-files-ipo-965-billion-valuation/
- https://siliconangle.com/2026/08/20/report-anthropic-hopes-to-surpass-spacexs-record-ipo-raise-when-it-finally-goes-public/