Anthropic Reportedly Set to Publish IPO Prospectus at 9 a.m. ET After Draft Showed $80.7 Billion Half-Year Loss

Since Anthropic told investors at an Oct. 14 investor day that third-quarter revenue reached $16.8 billion, the company has announced a 5% share pledge to a new Public Benefit Fund and moved to the edge of its public S-1 filing. Crypto Briefing reported that Anthropic will release the document at 9 a.m. ET. The company had confidentially submitted a draft to the SEC in June.

The timing matters because of an SEC rule. A company must publicly file its prospectus at least 15 days before launching a roadshow. The Motley Fool reported that Anthropic's roadshow is currently expected to start Nov. 9, and that if the S-1 isn't available by Oct. 25, the IPO may be delayed again. Jay Ritter, who leads the University of Florida's IPO Initiative, told MarketWatch that a Nov. 24 pricing with a Nov. 16 roadshow would leave Anthropic until late next week to file publicly.

What the draft prospectus showed

The Wall Street Journal reviewed the confidential draft. It showed $16.3 billion in first-half 2026 revenue, up from $1.1 billion a year earlier, against an $80.7 billion net loss.

About $72 billion of that loss came from non-cash accounting charges tied to financial instruments Anthropic issued to raise money. Compute and infrastructure spending was nearly $9 billion in the first half, more than the $7.3 billion spent in all of 2025.

The draft says Anthropic could commit up to $750 billion to compute capacity in coming years. That includes noncancelable cloud agreements with Google ($111 billion), Amazon Web Services ($110 billion) and Microsoft ($31 billion). Much of it is payable regardless of usage.

The draft also lists blunt risk factors:

• Anthropic says it struggles to secure enough compute because the hyperscalers increasingly treat it as a competitor rather than a customer.
• About 20% of revenue came from two customers.
• A catastrophic AI incident could exceed its insurance coverage.

Reuters reported that roughly 80 pages of the prospectus's 261-page main body are devoted to risks. The company has said AI could pose "catastrophic or existential risks to humanity."

The operating trend is better than the headline loss. Anthropic said Q3 revenue was up 45% from Q2, that it reached adjusted profitability for a second straight quarter, and that it has positive free cash flow. It also said it generated $1.70 in revenue per $1 of compute spend. Those figures come from the company's own statements to investors.

Investor Chamath Palihapitiya, speaking on the Moonshots podcast with Peter Diamandis, singled out the compute warning that capacity from Amazon, Google and Microsoft could be "curtailed, repriced, or terminated." He argued the binding constraint on AI's impact is physical buildout, not model capability.

The Public Benefit Fund

Anthropic said on Sunday that it plans to commit 5% of its shares to a Public Benefit Fund. It would be a wholly owned LLC, not a 501(c)(3). The company says none of the equity would go to lobbying or political giving in the U.S. or abroad.

The board could add 2% of shares for every 50% rise in company value above a baseline Anthropic has not disclosed. The plan needs stockholder approval. Anthropic says it will detail governance and valuation triggers in the coming months.

Anthropic said the money could fund nonprofit donations, direct distributions to specific populations and efforts on AI's labor-market effects. Reuters reported that, combined with the co-founders' pledge to donate 80% of their equity and an employee matching program, roughly 20% of the shares would be dedicated to public purposes.

The pushback came fast. Anduril founder Palmer Luckey called it "USAID 2.0" and argued Anthropic's Effective Altruism-aligned founders prioritize a non-Western audience over Americans. Former Trump AI czar David Sacks questioned the fund's actual public benefit.

Elon Musk, who runs rival xAI, wrote on X: "I recommend giving the shares directly to the public." Fox News asked Anthropic whether it would consider direct distributions to Americans. The company did not answer.

Lise Buyer, a partner at IPO advisory firm Class V Group, told CNBC the timing helps Anthropic's image. She added: "Of course, it is also to burnish their reputation at a time when AI is coming under significant scrutiny." Anthropic frames the fund as a bolder approach to AI's societal effects.

A rough market for a giant listing

Anthropic is reportedly seeking a valuation of as much as $2 trillion. SpaceX debuted at $1.77 trillion earlier this year, per MarketWatch.

The backdrop has soured. Neocloud company CoreWeave has dropped roughly 30% over the last two weeks and carries a $50 billion debt load, according to MarketWatch and FOX Business. Chip stocks recently snapped an eight-day losing streak, their longest in 18 years.

Joe Tigay, a portfolio manager at the Rational Equity Armor Fund, said slowing growth plus persistent inflation is where markets can crack. "Anthropic could reasonably decide it is better to stay private and wait," he told MarketWatch.

Jim Lebenthal, chief market strategist at Cerity Partners, argued the opposite: the market needs a successful Anthropic IPO to show AI has staying power.

OpenAI has chosen to wait. CEO Sam Altman told Fortune in September that 2026 would be "an ill-advised moment to go public," citing AI risk concerns and its nonprofit-versus-for-profit governance split. OpenAI is reportedly in talks on another private round that could value it above $1.4 trillion.

The revenue comparison is disputed. OpenAI reports net revenue and says Anthropic counts contracts sold through cloud partners as gross revenue.

What remains unclear is the public document. Final pricing, listing date and share availability have yet to be confirmed. The S-1 will show whether the $750 billion in compute commitments and the loss figures hold up against the roughly $2 trillion valuation reports, and whether Anthropic still holds to a mid-November listing.