Unprecedented Mega-IPOs: SpaceX, OpenAI, and Anthropic Set to Shake Up Financial Markets in 2026
The financial markets are gearing up for an unprecedented event in 2026 as three major private companies, SpaceX, OpenAI, and Anthropic, are set to make their debut on public markets. With a combined valuation nearing $4 trillion, the scale of this exercise is unlike anything seen before, prompting questions about the market's capacity to absorb all three companies. SpaceX, led by Elon Musk, is the first to test the public markets with a fixed share price and a record-breaking target raise of $75 billion. The company's IPO is expected to surpass the current record for capital raised through an IPO, held by Saudi Aramco.
SpaceX's IPO is causing a reshaping of financial markets even before its debut, with index providers adjusting rules for benchmark entry and passive investment firms preparing for the automatic buying flows that its inclusion will trigger. Retail investors are also being given unprecedented access to SpaceX shares, with Elon Musk reportedly reserving up to 30% of the shares for them. The company is emphasizing retail investor participation and directing prospective buyers to various brokerages.
Following SpaceX, Anthropic and OpenAI are also gearing up for their public debuts, with Anthropic filing confidentially with the SEC and aiming for a public valuation near $1 trillion. OpenAI, known for its AI models like ChatGPT, is targeting a public valuation between $852 billion and $1 trillion. Together, these three companies are expected to add significant value to the market and raise over $200 billion in funds, surpassing the projected total US IPO market raise for 2026.
Despite the massive valuations being sought by these companies, concerns remain about their profitability and underlying business models. None of the three companies are profitable in conventional terms, with OpenAI projecting significant losses in 2026. The high valuations being sought raise questions about their sustainability and performance compared to broader markets. However, proponents argue that AI adoption could lead to transformative productivity gains that justify these valuations.
The market is preparing for these mega-IPOs, with stock index providers weighing newly listed companies based on their "free float" and gradual scaling up in index weights expected. Lock-up agreements will also extend the impact of these listings over years rather than weeks, providing some insulation against sudden liquidity shocks. While the valuations being sought may be ambitious, the potential transformative impact of AI adoption on productivity could be a key driver of long-term value creation in these companies.