New week, new IPO. Anthropic has revealed plans to go public in the U.S., submitting confidential paperwork to regulators as it prepares for initial public offering later this year, with investors already focused on where the Anthropic stock price might land. Details such as the number of shares and pricing have not yet been disclosed.
The listing is already being framed as one of Wall Street’s most closely watched events of the year. For months, investors have been waiting for major AI companies to enter public markets, as excitement around the technology continues to reshape the broader industry.
As is typical for fast-growing tech companies, Anthropic has opted for a confidential filing process. Its anticipated debut, along with the SpaceX IPO expected this summer, will test whether investor demand can keep pace with the increasing valuations of leading AI companies.
Despite being founded just five years ago, Anthropic has quickly climbed the ranks. A recent private funding round valued the company at more than $965 billion, putting it ahead of OpenAI's latest post-money valuation of $852 billion.
The pace of growth has been remarkable. In March 2025, Anthropic was valued at around $60 billion; just fifteen months later, that figure has risen more than fifteenfold.
The company was established by Dario Amodei following his departure from OpenAI, where he had worked for several years.
Since then, the two companies have evolved into direct competitors, developing similar technology and fighting for the attention and spending of users and corporate customers.
That competition has become more pronounced in recent months. Last fall, Anthropic was widely seen as trailing OpenAI, which benefited from the status of early leader in the generative AI boom. However, momentum began to shift with the launch of Claude Opus 4.5.
This update significantly enhanced Claude Code’s capabilities, allowing it to create full applications or features from simple natural-language instructions. It also improved the performance of longer-running AI agents and strengthened their ability to plan and execute complex tasks.
OpenAI is also said to be considering a public listing this year. Many analysts suggest that whichever company goes public first could secure an advantage in raising capital, particularly as both firms are expected to pursue tens of billions of dollars in funding within a short timeframe.
If Anthropic achieves a $1 trillion valuation at IPO, it would instantly rank among the world’s most valuable companies and likely mark one of the largest public offerings in history.
More broadly, these potential listings highlight a larger shift. While private investors have already poured vast sums into companies like Anthropic, OpenAI, and SpaceX, public markets remain the most effective way to access broader capital.
That supportive backdrop is being supported by strong equity markets, with investors continuing to pay for future potential. The S&P 500 recorded its sixth consecutive record close, extending a nine-session winning streak — its longest in over a year — while rising 0.1%. The Dow Jones Industrial Average gained 229 points, or 0.4%, to reach a new all-time high, and the Nasdaq Composite edged up by less than 0.1%.
Notably, all three major indexes have now closed at record highs for five straight sessions, underscoring the strength of current market sentiment.
If OpenAI proceeds with its own IPO, U.S. markets could soon witness an unprecedented concentration of investment flowing into a small group of AI leaders
