Anthropic is preparing to make its initial public offering (IPO) paperwork public as early as Friday, Oct. 23, according to reports citing people familiar with the plans. This move would advance the developer of the Claude language model toward what could be the largest stock market debut in history.
The filing represents a significant milestone for the artificial intelligence sector. It also serves as a critical test for investor appetite in an industry currently facing scrutiny over massive capital expenditures and profitability concerns. Yahoo Finance reported the development on Wednesday, noting that the company confidentially submitted a draft of its S-1 prospectus to the Securities and Exchange Commission (SEC) in June.
SEC Rules and Financial Disclosure
Under current SEC regulations, companies that file confidentially must make their documents public 15 calendar days before they begin pitching the deal to potential investors. A public filing would clear the path for a possible listing in November. It would also provide everyday investors with their first detailed look at the company’s financial health and associated risks.
Anthropic has not yet responded to requests for comment regarding the timing of the filing. The company’s revenue trajectory has drawn significant attention from Wall Street analysts. Reports indicate that Anthropic brought in $16.3 billion in revenue during the first half of 2026. However, the company also posted a net loss exceeding $80 billion during the same period.
Despite the substantial losses, the company reported that third-quarter revenue rose to $16.8 billion from $11.5 billion. It also stated that it achieved adjusted profitability during that quarter. These figures have led some investors to weigh valuations near $1.2 trillion, while broader market expectations suggest the company could raise up to $100 billion at a $2 trillion valuation.
Tough Market Conditions for Tech IPOs
The timing of the Anthropic IPO coincides with a challenging environment for technology companies seeking public listings. The offering is widely viewed as a crucial test of whether investors remain willing to support high-growth AI firms despite heavy spending. The deal is also expected to surpass SpaceX’s June IPO, which was previously the largest in recent history.
Recent market activity suggests caution among investors. South Korean data center firm Elice saw its stock fall 32% on its first day of trading. Additionally, Firmus Grid, a company backed by Nvidia, shelved its listing plans entirely. These setbacks highlight the increasing difficulty for tech firms to secure favorable valuations in the current climate.
Financial analysts note that much of Anthropic’s first-half loss stemmed from a $72 billion accounting charge tied to bonds that could convert into shares. This charge does not reflect cash operating costs, which may influence how investors interpret the company’s financial stability. The company has also been closing its revenue gap with rival OpenAI, posting two straight quarters of adjusted profit.
Anthropic has expressed hopes to begin trading before Thanksgiving. The company has also been expanding its commercial footprint, recently launching a blueprint for retailers to build AI shopping agents on Claude in partnership with Visa and Mastercard. The upcoming S-1 filing will provide the first comprehensive view of how these commercial strategies translate into long-term financial performance for shareholders.
Source: PYMNTS

