Making Sense Of The AI IPO Tsunami Heading For Wall Street

InnovationAIMaking Sense Of The AI IPO Tsunami Heading For Wall StreetByPaulo Carvão,Contributor.Forbes contributors publish independent expert analyses and insights. Paulo Carvão is a Senior Fellow at HarvardFollow AuthorJun 04, 2026, 06:03pm EDT--:-- / --:--This voice experience is generated by AI. Learn more.This voice experience is generated by AI. Learn more.Public markets will soon test whether the AI boom’s private valuations can withstand public scrutiny (Photo by Spencer Platt/Getty Images)Getty ImagesThe AI boom has been financed and priced by private markets. That is about to change as SpaceX, Anthropic and OpenAI move toward public listings. Wall Street is preparing to test whether public investors will buy the idea that frontier AI companies can absorb unprecedented capital, spend hundreds of billions on computing infrastructure and grow fast enough to justify trillion-dollar valuations. For the first time, the markets will price these companies on publicly disclosed numbers.Private Money Is Building The AI IPO PipelineMost of the money behind the AI IPO pipeline has come from private hands. OpenAI closed about $122 billion in March 2026 at an $852 billion valuation, the largest private financing ever assembled. In May, Anthropic raised $65 billion at a $965 billion valuation, briefly overtaking its rival in value on paper. Anthropic’s round followed $30 billion raised just three months earlier. xAI, Elon Musk’s AI company, which includes the former Twitter assets, added $20 billion in January before folding into SpaceX in February in a deal that valued the combined company at $1.25 trillion. Across these three names, private backers have committed almost a quarter trillion dollars so far this year.The equity story is only the first layer. While the AI IPO pipeline is being built with private money, the physical AI buildout that supports it is increasingly being financed through private debt, special-purpose vehicles and vendor-backed arrangements. Larg...