Anthropic’s IPO Raises Big Investor Questions

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Anthropic just told investors it lost $80.7 billion in six months while making $16.3 billion in revenue, and the company says most of that eye-popping loss is really just an accounting quirk.

Quick Take

Anthropic filed official paperwork with the Securities and Exchange Commission (SEC) on October 26 to go public on the Nasdaq under the ticker symbol ANT.
The filing shows $16.3 billion in revenue and an $80.7 billion net loss for the first half of 2026.
About $72.4 billion of that loss came from non-cash accounting changes, not actual cash spent.
The company reported a positive adjusted operating margin of 10% for the same period.
Share count, price range, and final valuation are still not set.

Anthropic Takes Its Claude AI Business Public

Anthropic, the company behind the Claude artificial intelligence chatbot, filed a Form S-1 registration statement with the SEC on October 26. The filing moves the company one step closer to an initial public offering (IPO) on the Nasdaq Global Select Market. Anthropic plans to trade under the ticker symbol ANT, though it has not yet set the number of shares or the price range for the offering.

The timing matters. Reports describe a possible roadshow where Anthropic pitches big investors before a listing that could come in mid-to-late November. Some reports have floated a possible valuation between $1.5 trillion and $2 trillion, though those numbers remain unofficial targets rather than locked-in terms.

A Huge Loss, But Mostly on Paper

The S-1 filing shows Anthropic brought in $16.3 billion in revenue during the first half of 2026. At the same time, the company reported a net loss of $80.7 billion. That gap looks staggering at first glance, and it has already drawn attention across financial media and social platforms.

Most of that loss, though, did not come from spending cash. About $72.4 billion of it came from changes in the paper value of convertible notes, derivative liabilities, and other financing agreements the company used to raise early money. As Anthropic’s valuation climbed, these instruments became more valuable on paper, and that increase counted as a loss under accounting rules.

Once those non-cash swings are stripped out, the picture looks different. Anthropic reported a positive adjusted operating margin of 10% for the first six months of the year. Analyst Gil Luria called the real losses “very small,” even after accounting for stock-based pay to employees.

Growth Is Slowing, Even If Revenue Keeps Climbing

Anthropic’s revenue has grown fast compared to a year earlier, and the IPO filing drew a bump for AI stocks across the market. But the pace of that growth is not staying the same. Reports on the filing describe a real slowdown in revenue growth between the second and third quarters of 2026, even as the overall dollar figures kept climbing.

Anthropic also left a key number blank in its filing: its run-rate revenue, which estimates future sales based on current activity. Outside estimates have put that figure near $65 billion, but Anthropic’s own filing warns that run-rate revenue “is not a substitute for revenue” and “is not a forecast of future revenue.” The company’s prospectus also states plainly that profitability may not stick around.

Wall Street Banks Stand to Gain From a Successful Listing

Goldman Sachs and Morgan Stanley are leading the underwriting for the offering, with more than 20 banks reportedly involved in some capacity. These banks earn fees tied to a successful IPO, giving them a direct financial stake in how the offering gets priced and pitched to investors. That does not make the underlying numbers false, but it is a detail worth keeping in mind as the roadshow begins and bigger headlines about trillion-dollar valuations start circulating.

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▪️ Global markets Japan's Nikkei rises as Anthropic IPO filing lifts AI-related shares#StockMarketIndia #Nifty50

— Business Times 🇮🇳 (@BusinessTimesIn) October 27, 2026

For everyday Americans watching retirement accounts and index funds tied to the stock market, the Anthropic filing is a preview of how the next wave of AI companies may present their finances: massive headline losses paired with warnings that the losses are mostly accounting noise, and massive growth paired with warnings that the growth is slowing down. Investors and regulators alike will be watching closely as Anthropic files amendments and firms up real terms ahead of its planned Nasdaq debut.