Anthropic’s IPO prospectus is chock-full of details for investors to celebrate and worry about.
Company bulls hail 1,300% annual revenue growth, 900% net revenue retention, and 85% implied gross margin. But bears point to half-year net losses of about $80 billion, hundreds of billions of dollars worth of computing commitments, and more than 90 pages of risk factors.
The numbers are staggering from both sides, and Anthropic is positioned to pursue what could be the largest initial public offering in history. The IPO also pushes investors firmly into uncharted territory as they seek to value the first pure-play artificial intelligence company to go public as interest rates rise and concerns about the scale of AI development grow.
Anthropic was valued at $965 billion as of May and is reportedly seeking an IPO valuation in the range of $1.5 trillion to $2 trillion, which would instantly put it among the 10 most valuable U.S. tech companies.
“This was a generational moment, and we’ll look back on it in 10 years, and this was the biggest paradigm shift in technology that shaped our lives like no other,” Denny Fish, portfolio manager at Janus Henderson Investors, told CNBC’s “The Exchange” on Monday. “The devil is in the details, and we don’t know all the details yet.”
Anthropic, founded by a group of exiled researchers in 2021 OpenAIis best known for its Claude AI models and services sold through enterprise agreements and subscriptions.
Anthropic said in its long-awaited prospectus on Monday that its enterprise customer base includes more than 11,900 customers who spent at least $100,000 year over year, more than 1,900 customers who spent more than $1 million, and approximately 250 customers who spent more than $10 million. In the first nine months of 2026, five customers accounted for about a quarter of its revenue.
“I think it’s very easy to lose track of the early stages, but it’s incredible to see a company like Anthropic do so well so early on,” Erica Brescia, managing director of Redpoint Ventures, told CNBC’s “The Exchange” on Monday.
“Anthropic still has an astronomical opportunity,” said Brescia, an investor in the company. “And I think this is a very exciting opportunity for retail investors to participate in this transformation in ways that don’t just buy chip stocks.”
Anthropics are a tough sell for many investors who are focused on the fundamentals of the business.
The company lost $80.7 billion in the first half of this year, much of it due to changes in the fair value of convertible debt and derivative debt, after reporting a loss of $12.9 billion in the same period in 2025. Meanwhile, the company’s computing commitments have skyrocketed as competition from lower-priced open-weight models intensifies.
David Trainer, CEO of financial research firm New Constructs, describes Anthropic’s future offering as a “giant chasm on Wall Street.”
The trainer has built a reputation on Wall Street as a notorious bear of IPOs. Last month, his firm released a report claiming that Anthropic was the “most ridiculous IPO of 2026” and would be an “unprecedented test of investor gullibility.”
Trainor, who reviewed the prospectus, said in an interview with CNBC on Tuesday that his position has not changed. He said AI would be a “great tool for society,” but not so much for businesses, and said he was concerned about Anthropic’s competitive position, its “opaque” insider sale schedule, and the fact that its commitments and debt dwarf its cash.
“All these people have stock in Anthropic, and they want to cash out,” Trainor said. “For me, having lived through the tech bubble, lived through the Great Financial Crisis, been on Wall Street at the time, and seen how sausages are made, it’s like a slow-moving train wreck.”
Roger McNamee, an early investor in Google and Facebook, told CNBC on Tuesday that Anthropic’s IPO is “a very risky thing for investors,” adding that the industry still has a lot to prove.
“We should look at S-1 as a detective story, because it’s a great story, a really great story, but it’s hundreds of pages long, and those hundreds of pages aren’t there to make the story clear,” McNamee, co-founder of Elevation Partners, told CNBC’s “Squawk on the Streets.” “And the feedback I’ve gotten on (X) is that a lot of people who don’t agree with me are sitting there saying, ‘I love this story,’ and I’m like, ‘Look, God bless you, it’s your money.'”
Anthropic is one step closer to an IPO, but there are still hurdles to clear before it can get to the starting line.
During the roadshow, the company needs to convince potential investors, gauge demand, set the IPO offering price and allocate shares. Once all of this is complete, the company will eventually be listed on the Nasdaq under the ticker symbol “ANT.”
Investors will be closely monitoring each development and details.
Gil Luria, managing director of DA Davidson, said he wanted to know more before the company’s debut. This includes the path to long-term profitability and, importantly, valuation. He said in an interview Tuesday that if the IPO is priced correctly, it’s likely to “do very well.”
“We can talk about risks, but as we sit here now, and based on what we know now, Anthropic is still the leading AI company and this is pure play,” Luria said. “IPOs should do well because investors want exposure to pure play.”
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