Anthropic Seeks Record-Breaking IPO in Volatile AI Market

Anthropic, the artificial intelligence startup known for its popular Claude models, has submitted final paperwork to regulators for an initial public offering. The filing, made on Monday under the ticker symbol ANT, suggests a company valuation ranging from $1.5 trillion to $2 trillion. If realized, this would place the firm in the same valuation category as SpaceX, which was valued at approximately $1.8 trillion when it listed in June.

The submission of a Form S-1 registration statement to the Securities and Exchange Commission represents a major step in the company's history. Anthropic was founded just five years ago by a group of researchers who left OpenAI, led by Dario Amodei. The founders departed due to concerns that OpenAI, led by Sam Altman, was not prioritizing the safe development of AI technology.

Since its inception, Anthropic has grown into a dominant force in the industry and a primary competitor to OpenAI. However, the company has faced various controversies, including a dispute with the Pentagon regarding model usage and scrutiny over Amodei's strong warnings about AI risks. Despite these challenges, the company's prospectus expresses strong confidence in the technology, stating that AI will transform the global economy more significantly than the industrial revolution, electricity, semiconductors, or the internet.

Financial data included in the filing shows rapid growth in both revenue and operating metrics. Anthropic reported that its revenue for the first half of the year increased by 1,300 percent to reach $16.3 billion. During the same period, adjusted operating income swung to a positive $1.6 billion, reversing a loss of $1.8 billion from the previous year. Nevertheless, the company has not yet achieved an annual profit, booking a net loss of nearly $81 billion in the first half of 2026, compared to a $13 billion loss in the same period last year.

Market reaction to the announcement was positive, with U.S. stock indexes rising on Monday. Raj Joshi, a senior vice president at Moody's, described the shift in Anthropic's operating income as a strong positive for the broader AI ecosystem. However, the filing occurs during a period of volatility for AI-related stocks, as investors weigh the potential economic benefits of AI against concerns about safety and the scale of required investment.

The IPO could take place as early as November. It is one of the most anticipated public offerings in recent years, particularly as rival OpenAI has paused its own IPO plans. Sam Altman recently stated that listing this year would be ill-advised given current safety concerns. Jim Angel, a markets specialist at Georgetown University, noted that going public provides capital for growth and allows existing investors to cash out, but he also warned of potential bubbles and market volatility. He suggested that Anthropic is choosing to list now to secure a high valuation while market interest remains strong.

The move follows a private fundraising round in May, where Anthropic secured a post-money valuation of $965 billion. With SpaceX already trading publicly, Anthropic's listing will test investor appetite for AI businesses. SpaceX shares initially surged after its listing but have since settled back to their opening price of around $150. The market remains cautious about whether AI companies can generate sufficient profits to justify the massive sums being invested in the sector.

Other players in the AI infrastructure space are also facing headwinds. CoreWeave, a data center provider, saw its share price drop this month amid concerns over its financing capacity. Major tech firms like Intel, Meta, and Nvidia have also experienced share price declines in recent weeks. Rising interest rates, driven by the Federal Reserve's efforts to combat inflation, have made debt financing a growing concern for companies scrambling to meet demand.

Anthropic's filing outlines several risks associated with its business model, including the possibility that its AI models could evolve faster than the company can manage their safety. It also notes risks related to political scrutiny and potential backlash against its policy views. Amodei has been a vocal advocate for slowing down the development of the most capable AI models to prevent them from spiraling out of control.

The company is currently engaged in legal battles with the U.S. Department of Defense. The Pentagon designated Anthropic as a supply chain risk and blacklisted it after Amodei opposed the use of Anthropic's AI for autonomous weapons and mass surveillance of Americans. Anthropic has filed suits in two federal district courts, and those cases are still ongoing as the company moves forward with its public listing.