Artificial intelligence giant Anthropic said on Monday it had confidentially filed for a U.S. initial public offering, in what could be a watershed moment in Wall Street's artificial intelligence craze. The move will be a high-stakes test of whether investor enthusiasm for the AI revolution that will reshape white-collar jobs around the world can match the soaring expectations surrounding the booming sector.
Anthropic, which operates the AI chatbot Claude, did not disclose the size or terms of the offering. The company raised $6.5 billion in late May at a post-money valuation of $965 billion, surpassing rival OpenAI in valuation.
This crucial step toward going public comes on the heels of SpaceX's huge IPO. The company, led by Elon Musk, is seeking to raise $75 billion at a valuation of $1.75 trillion, potentially rewriting history.
Rivals OpenAI and Anthropic have become the face of an artificial intelligence boom that has reshaped corporate strategy, sparked a global battle for computing power and talent, and transformed AI-related companies into some of the highest valuations in the market.
Anthropic's valuation has more than doubled from February this year, when the company raised $30 billion in a funding round valuing it at $380 billion.
The company's meteoric rise in early 2026 shook the market, triggering a sharp sell-off in software and IT stocks, as investors worried that its increasingly autonomous artificial intelligence tools could upend traditional business models and accelerate disruptive changes across industries.
A person familiar with the matter told Reuters in late May that OpenAI is also preparing to confidentially file a registration statement for a U.S. initial public offering (IPO) in the coming weeks, which will add to the expected wave of blockbuster listings in the coming year.
Market Milestones
As a series of blockbuster listings rush to the public market, companies from SpaceX to AI giants are competing for limited investor capital.
The listing would be one of the most far-reaching stock market debuts in recent years, with the potential to reshape benchmark indexes, the flow of investor money and the overall narrative that drives U.S. stocks.
A valuation approaching $1 trillion would catapult Anthropic into the top ranks of the S&P 500, joining the handful of elite companies that dominate global stock markets.
Anthropic's listing will inject strong momentum into the long-sluggish IPO market, but experts and investment bankers warn that an offering of this size could drain liquidity and distract investors from smaller listings.