Anthropic's $1.3 Trillion IPO Draws 'Ridiculous' Warning From Analysts

Anthropic has cut its target valuation from $2 trillion to $1.3 trillion, and one research firm still calls the deal the "most ridiculous IPO of 2026." That verdict comes from New Constructs, the independent financial research provider that branded WeWork "the most ridiculous IPO of 2019" — a call that proved prescient when the office-space company's listing collapsed.

Demand for the offering is not the problem. Orders for shares of the company, co-founded by CEO Dario Amodei, have reportedly exceeded the number of shares on offer several times over, even amid recent volatility in tech stocks. Many Wall Street analysts and venture capitalists are openly bullish. But a vocal minority is telling investors to stay away, pointing to the valuation and Anthropic's mounting operating losses.

Who is sounding the alarm?

New Constructs, founded and run by David Trainer, leads the bear camp. Trainer is not quite as negative on Anthropic as he was on WeWork, according to the firm's own framing. Yet he raises fundamental questions about the valuation, arguing that operating losses and intensifying competition — from both rival AI firms and open-source models — make the business model unsustainable.

"We don't think Anthropic has a viable business," New Constructs wrote. "While Anthropic offers more to society than WeWork ever did, at a $2 trillion valuation, its IPO presents far bigger risks and is positioned to be a far bigger rip off of U.S. capital markets."

The second prominent skeptic needs little introduction. Michael Burry, the investor made famous by "The Big Short" for betting against subprime mortgages before the 2008 financial crisis, published his concerns in a Substack post earlier this month.

Burry focused on Anthropic's spending commitments to compute, chips, and infrastructure — the capital-intensive backbone of any frontier AI lab. His verdict on the pricing was blunt.

"Not only is the company priced for optimism," Burry wrote, "it is betting its entire existence on that optimism."

What do the numbers actually say?

The headline figure is the valuation cut itself: $1.3 trillion, down from $2 trillion. Even at the reduced number, Anthropic would rank among the largest IPOs in market history. To put the scale in perspective, $1.3 trillion exceeds the market capitalization of most companies in the Dow Jones Industrial Average.

New Constructs' critique rests on two pillars. First, operating losses: the firm says the cash burn makes the current business unsustainable. Second, competition: open-source models and rival AI companies threaten the pricing power that a trillion-dollar valuation requires.

Notably, neither New Constructs nor Burry disputes the underlying technology or Anthropic's social usefulness. New Constructs concedes the company "offers more to society than WeWork ever did." The dispute is over price, not product.

Is there precedent for the skepticism?

The WeWork parallel matters because it is the bears' strongest credential. New Constructs issued its "most ridiculous IPO" warning in 2019, before WeWork's attempted listing imploded and the company's valuation fell from $47 billion to near-insolvency within weeks.

There is also a more recent parallel on the bullish side. SpaceX faced bearish forecasts and open skepticism in the days before its own IPO, and the offering proceeded regardless. Anthropic's backers can point to that episode as evidence that pre-IPO doubt does not guarantee failure.

The honest read is that both precedents fit. Oversubscribed order books signal demand, not durability. A $1.3 trillion price tag leaves little room for the operating losses to persist as long as Trainer and Burry expect.

What should investors watch?

The gap between the two camps comes down to one question: can Anthropic convert record demand for its shares into a business that justifies a $1.3 trillion valuation while burning cash on compute and chips?

Trainer says no, citing losses and open-source competition. Burry says the company itself has staked its survival on an optimistic scenario. The bulls, meanwhile, are counting on order books that are already several times oversubscribed.

What the skeptics have not done is put a number on when the losses must reverse, and what the bulls have not done is explain who buys at $1.3 trillion if they don't.