The AI IPO wave Wall Street has anticipated for years finally crashed ashore this week, as both OpenAI and Anthropic filed confidential S-1 registration statements with the U.S. Securities and Exchange Commission within days of each other. Together with SpaceX, the three companies form a staggering $3.6 trillion IPO pipeline — a concentration of blockbuster listings markets have not seen since the dot-com era.
Background on the AI IPO Wave
For years, investors watched AI’s biggest names accumulate unprecedented private valuations. Anthropic closed a $65 billion Series H round at a $965 billion post-money valuation, surpassing OpenAI’s private-market value for the first time. OpenAI itself raised $122 billion in March 2026 at an $852 billion valuation. Both companies now eye public markets as the next logical step. Analysts at Wedbush Securities called Anthropic’s June 1 filing the opening of floodgates for an IPO market that had stayed relatively dormant for years.
Key Details of the AI IPO Wave
Anthropic moved first. The Claude maker confidentially submitted its draft S-1 to the SEC on June 1, 2026, just four days after closing its record Series H round. The company confirmed the filing in a blog post, stating it gives Anthropic “the option to go public after the SEC completes its review.” Analysts now widely treat a debut above $1 trillion as the base case if markets cooperate. Then, on June 8, OpenAI confirmed its own confidential filing — announcing it proactively before the document could leak. The ChatGPT maker enlisted Goldman Sachs, Morgan Stanley, and JPMorgan as lead underwriters, targeting a listing as early as September 2026.
Industry Impact of the AI IPO Wave
The filings expose the full financial reality of the AI race for the first time. OpenAI reportedly loses $1.22 for every dollar it earns, spending heavily on compute and model training. Anthropic projects $10.9 billion in Q2 2026 revenue alone — more than doubling the prior quarter. Enterprise AI demand drives that surge, particularly around Claude Code, Anthropic’s coding assistant. The revenue run-rate hit approximately $47 billion in May 2026, up sharply from $10 billion the prior year. Meanwhile, Amazon holds a paper stake in Anthropic worth an estimated $74 billion, and Google holds roughly 14% in straight equity. Both hyperscalers stand to book enormous gains when shares start trading publicly.
What Comes Next for the AI IPO Wave
The SEC review process typically runs 60 to 90 days before a company must publish its prospectus publicly. That places OpenAI’s earliest public filing window in late August or September 2026. Anthropic targets an October 2026 listing on Nasdaq, which would rank it among the top 50 most valuable listed U.S. companies on its first day of trading. The company that lists first could set the narrative and capture the largest share of early investor enthusiasm. Public investors will scrutinize audited financials, capital spending, and margin trajectories that private backers largely accepted on faith. Goldman Sachs estimates this AI IPO wave could generate $160 billion in U.S. IPO proceeds for the full year — four times 2025 levels.
Conclusion
The AI IPO wave now gathering force represents the most consequential public-market event in technology since the mid-2000s. OpenAI and Anthropic together will force a reckoning between the trillion-dollar valuations private markets assigned and the scrutiny public investors demand. The back half of 2026 will answer the defining question of the AI boom: will public markets fund the staggering infrastructure costs of the intelligence age, or will they push back hard on unprofitable giants asking for trillion-dollar price tags?
Related: Anthropic IPO Filing: Near $1T Valuation Shakes AI
Originally reported by TechCrunch / CNBC / Bloomberg. Analysis by the FastCustomAI Editorial Team.