Anthropic IPO S-1 Filing: Key Numbers Explained

Anthropic filed its S-1 with the SEC on October 26, 2026, clearing the path for a Nasdaq listing under the ticker ANT. The document reveals explosive revenue growth alongside heavy losses driven mostly by accounting marks and massive long-term compute commitments.

The company behind Claude reported $16.3 billion in revenue for the first half of 2026, up more than 1,300% from the same period a year earlier. Second-quarter revenue alone reached $11.6 billion, and the company posted its first GAAP operating profit of $974 million in that quarter.

Revenue growth and operating results

Full-year 2025 revenue was $4.6 billion. First-half 2026 revenue of $16.3 billion already dwarfs that figure. Most of the half-year total arrived in the second quarter.

Operating loss for the first half narrowed to $693 million. Adjusted operating income swung positive to $1.62 billion. Net revenue retention stood near 900% as existing customers expanded usage.

The company had more than 1,900 customers spending $1 million or more annually and roughly 250 spending $10 million or more. Cash and short-term investments totaled more than $130 billion at the end of June.

The $80.7 billion net loss

The headline net loss of $80.7 billion for the first half is largely non-cash. About $72.4 billion came from changes in the fair value of convertible notes and related instruments as Anthropic’s private valuation rose.

Operating activities generated positive cash flow of $3.9 billion in the half. The accounting charge does not reflect cash spent on running the business.

Investors will watch whether operating profitability continues as the company scales and as the IPO process moves forward.

Compute commitments

The filing discloses large multi-year deals for compute. Named agreements total roughly $637 billion, including:

• Broadcom: about $161.2 billion in TPU equipment leases over five years
• SpaceXAI: up to $120.5 billion for GPU capacity
• Google Cloud: at least $114.5 billion
• Amazon: at least $110 billion
• Microsoft: at least $44.9 billion

Additional estimated TPU capacity and other deals push the broader range higher. Fixed or minimum commitments stood at about $265.6 billion as of June 30, with further agreements signed afterward.

These take-or-pay style contracts mean Anthropic must continue growing revenue quickly to cover the infrastructure bill. Revenue already outpaced compute costs as a percentage in recent quarters.

IPO plans and risks

Anthropic plans to list Class A shares on the Nasdaq Global Select Market under the symbol ANT. The number of shares and price range remain blank in the public filing. Goldman Sachs and Morgan Stanley lead a group of underwriters.

Reports indicate a potential raise of up to $100 billion at a valuation between $1.5 trillion and $2 trillion, with a possible listing in mid-November. Timing can change.

The prospectus highlights risks including competition, compute costs, regulatory scrutiny, and the possibility that advanced AI systems could produce harmful outputs or prove difficult to control. Seven co-founders retain majority voting control through a special share class.

Developers using Claude can follow model access updates in tools such as Google Antigravity. See our guide on Access Claude Opus 5.5 in Google Antigravity for practical setup steps.

What the numbers mean for users

Strong revenue growth and an operating profit in Q2 show demand for Claude remains high. Large compute commitments signal continued investment in capacity, which should support higher usage limits and new features over time.

The paper loss does not change near-term product availability. Monitor official Anthropic announcements for any changes in pricing, rate limits, or enterprise terms once the company is public.

Conclusion

Anthropic’s S-1 confirms rapid scale: $16.3 billion in first-half revenue, a quarterly operating profit, and commitments that lock in vast compute capacity. The $80.7 billion net loss is mostly non-cash. The Nasdaq listing under ANT will test investor appetite for frontier AI companies with both explosive growth and heavy infrastructure obligations.

Sources

• Anthropic Form S-1 filed with the SEC, October 26, 2026
• Reuters, The Verge, CNBC, and Wall Street Journal reporting on the filing, October 26–27, 2026