Anthropic is moving closer to what could be the largest IPO in history by capital raised, following its October 26 S-1 filing and its November 10 updated IPO filing and roadshow launch. The company is targeting a fully diluted valuation of approximately $1.33 trillion at the midpoint of its proposed price range, below the $1.5 trillion previously anticipated. Anthropic plans to offer 825 million shares priced between $70 and $78, potentially raising $57.8 billion to $64.4 billion, including shares sold by existing stockholders. The company was last valued at $965 billion following its $65 billion Series H funding round in May 2026.
The updated S-1 filing revealed tremendous revenue growth, with revenue reaching $33.2 billion in the first nine months of 2026, up from $2.5 billion a year earlier. Anthropic's annualized revenue run rate climbed to approximately $81 billion by the end of October.
The updated filing also showed third-quarter sales reaching $17 billion, up from $1.4 billion a year earlier and $11.6 billion in the second quarter. Anthropic's operating loss narrowed to $567 million from $3.1 billion a year earlier, although the company returned to a loss after posting a $974 million operating profit in Q2. Anthropic's annualized revenue run rate climbed to approximately $81 billion by the end of October, up $10 billion from September. Rapid enterprise adoption and expanding customer usage point to a growing addressable market, although questions remain about how much of that opportunity Anthropic can capture profitably.
Valuation will likely depend on whether revenue growth can maintain its momentum and how much profit Anthropic can retain from sales through cloud platforms. Anthropic is offering roughly 801.4 million new shares, with existing stockholders selling another 23.6 million. Alongside the IPO, a $26 billion private placement with strategic investors could bring Anthropic's net proceeds from the combined transactions to approximately $84.6 billion at the midpoint offering price, after estimated underwriting fees and expenses. Anthropic plans to trade on the Nasdaq under the ticker ANT, and shares could begin trading as soon as November 19.
Read more about Anthropicβs upcoming IPO below, based on insights from AlphaSenseβs SuperAnalyst, or see the interactive SuperAnalyst dashboard for yourself.
Related Reading: Top IPOs to Watch in 2026
Company Overview
Anthropic has moved well beyond its roots as an AI research lab, with enterprise customers increasingly using Claude for software development, research, and other business functions. Its business model relies heavily on consumption-based revenue rather than subscriptions, with usage accounting for 79% of revenue in the first nine months of 2026, compared to 83% in 2025 and 75% in 2024.
The filing also showed how quickly its enterprise customer base is expanding. Customers generating at least $100,000 in trailing annual revenue grew from more than 950 in September 2025 to over 11,900 in September 2026. More than 1,900 customers generated at least $1 million, while approximately 250 generated $10 million or more. Anthropic also reported net revenue retention of approximately 900%, reflecting substantial spending growth among existing customers.
Anthropic continues to emphasize safety and reliability as selling points, particularly for companies operating in regulated industries. Its Claude models compete across a growing range of enterprise applications, while its partnerships with major cloud providers help extend its reach.
Financial Performance
Anthropic's revenue growth remains exceptional, but investors are increasingly focused on whether the company can maintain that pace as its computing costs rise. Revenue growth moderated in the third quarter after more than doubling sequentially in the second quarter, raising questions about whether demand is normalizing or limited by available computing capacity.
One encouraging sign is improving efficiency. The updated filing highlighted substantial revenue growth relative to compute expenses, although higher-cost short-term computing capacity continues to weigh on profitability.
Stronger inference economics could eventually improve profitability, although training costs, infrastructure spending, and cloud distribution fees remain significant pressures.
The scale of Anthropic's computing commitments is another major concern. The company has secured capacity agreements with Broadcom, SpaceX AI, Google, Amazon, Microsoft, and Nscale, including arrangements valued at more than $100 billion with several partners. The amended filing puts Anthropic's contractual obligations and commitments at roughly $901 billion, largely tied to computing infrastructure. About $452 billion is expected through 2030, including $70.7 billion within the next 12 months. Another $150 billion to $175 billion in estimated payments sits outside those fixed-dollar commitments. The scale of these obligations raises questions about how much additional financing Anthropic will need before its AI investments deliver more consistent returns.
Anthropic has historically relied on large equity raises and strategic partnerships to fund its expansion, with $141 billion in capital raised through June 2026, according to the filing. The IPO would provide additional financing, but the bigger question is whether revenue growth and improving unit economics can eventually offset its enormous infrastructure requirements. Anthropic's ability to secure funding at attractive terms will become increasingly important as the AI industry shifts toward more capital-intensive growth.
Anthropic's founders will retain 50.1% of the company's voting power through a collective ownership structure. That gives the founders control over major corporate decisions, leaving public shareholders with limited influence despite the substantial capital being raised.
Market Competition
Anthropic has established a strong position in enterprise AI, particularly in software development and complex business workflows. While OpenAI has benefited from ChatGPT's consumer reach, Anthropic has focused more heavily on companies incorporating AI into their operations. Its growing base of high-spending customers suggests that enterprise adoption is broadening, although competition for those workloads continues to intensify.
Partnerships with Amazon, Google, and other cloud providers give Anthropic access to a much larger customer base, but they also raise questions about how much revenue the company retains after distribution costs. Competition from open-weight models adds another challenge, potentially putting pressure on pricing as businesses gain access to cheaper alternatives. Anthropic also intends to keep Claude free of advertising, leaving enterprise adoption and usage growth as important drivers of future revenue.
The IPO comes at a critical point for the broader AI industry. Investors are increasingly questioning whether the enormous spending on computing infrastructure will generate sufficient returns, particularly as credit markets become more selective. Anthropic's offering will be an important test of how much capital equity investors are willing to commit to AI growth before the industry demonstrates more consistent profitability.
Anthropic's focus on AI safety also comes with significant risks. The company devoted 94 pages of its S-1 to risk factors, including the possibility of a catastrophic AI-related incident that could exceed available insurance coverage. The filing also disclosed instances of models exhibiting deceptive or self-preserving behavior during testing, highlighting the challenges of controlling increasingly advanced AI systems.
What the Experts Are Saying
Even Anthropic, it is slightly more expensive. However, if we upload contextual heavy data, meaning actually more tokens, longer context usually, Anthropic does give us slightly better results than the OpenAI GPT-3 or four. We began to move our operation to Anthropic. I remember the contract signed in Q3 2024, then gradually we began to move the operation, move the model, move the projects from OpenAI to Anthropic. Currently, we still have both, but Anthropic actually is taking more shares from us.
The most important, nobody buys models. You buy an ecosystem. You buy a platform. [...] Once you get into this, you realize that a model is one of approximately 75 decisions that you have to make as an enterprise.
We are using Anthropic Claude for multiple proposals, but in terms of code review and code generating, this is by far away the best technology that we have seen. We initiated with $50 per person, and the team is consuming the $50 in three or four days. It was a surprise for us, but we asked the team, and the team explained us. This is a game changer, and they can be super more efficient using Claude capabilities.
With AlphaSense's SuperAnalyst, an always-on AI agent purpose-built for financial and strategic workflows, you can run an in-depth analysis for any upcoming IPO. Sign up for your free 2-week trial of AlphaSense today.
