The IPO boom that investors have been anticipating appears to be evolving into a supernova. Anthropic this week surpassed OpenAI, the creator of ChatGPT, to become the most valuable frontier AI laboratory in the United States, following the announcement of a funding round that valued it at $965 billion, more than double its valuation from February. Robust demand for Anthropic’s Claude, particularly its coding capabilities, has propelled the start-up’s annualised revenue from $9 billion at the close of last year to $30 billion in April and $47 billion this month. Anthropic’s new valuation significantly expands the scale of this year’s IPO pipeline. The start-up is anticipated to submit its filing for a public offering prior to the year’s conclusion. Its primary competitor, OpenAI, which was valued at $852 billion in March, is reportedly gearing up to file in the upcoming weeks with the intention of entering the markets as early as September. Understanding the significance of this matter is crucial for informed decision-making and strategic planning. It highlights the underlying factors that may influence future outcomes and economic trends. Investors have been anticipating a revival of IPO activity following the Federal Reserve’s rate hiking campaign in 2022, which significantly stifled capital markets. Now, with three gargantuan IPOs on the horizon, investors may encounter an unparalleled surge of new stocks.

Elon Musk’s SpaceX is set to make its debut next month in what is anticipated to be the largest IPO in history. The company, valued at $1.25 trillion when it absorbed Musk’s xAI start-up earlier this year, could raise up to $75 billion, exceeding the funds raised by the current record holder, Saudi Aramco, during its public offering in 2019 by more than double. Together, SpaceX, OpenAI, and Anthropic could potentially amass a sum in their initial public offerings that rivals the total raised by all U.S. venture capital-backed IPOs over the last ten years, as indicated by data. The impending tsunami of mega IPOs has ignited both euphoria and apprehension on Wall Street. SpaceX’s IPO filing has sparked renewed enthusiasm for space exploration stocks: The Procure Space ETF has experienced a 65% increase since the beginning of the year, driven by its two largest holdings, satellite operators PlanetLabs and ViaSat, both of which have more than doubled in 2026. The Roundhill Space & Technology ETF has risen 69% since launching in March. Index managers are swiftly adjusting their criteria for index inclusion to cater to this year’s significant IPOs. In March, Nasdaq introduced new regulations aimed at facilitating expedited entry into the Nasdaq 100, while S&P Dow Jones Indices, the manager of the S&P 500, is considering analogous modifications.

On Tuesday, Russell FTSE announced new regulations that may allow SpaceX to be included in its indexes within five days following its initial public offering, aiming to ensure that its indexes “accurately reflect developments in the US equity market.” Some market observers express concern regarding the implications of altering the established regulations. Index eligibility criteria “aren’t” bureaucratic red tape, says Nancy Tengler. They represent the culmination of decades of rigorous analysis regarding the characteristics that contribute to an index’s durability, reliability, and trustworthiness for the trillions of dollars that are benchmarked against it. According to Tengler, SpaceX fulfils the market capitalisation and liquidity criteria set by the S&P 500; however, it falls short of the profitability benchmarks. Additionally, its public float, which represents the portion of stock accessible for trading in public markets, will be less than one-tenth of the index’s 50% stipulation. Its float raises significant concerns for Tengler, particularly given that SpaceX’s expedited inclusion in major indexes will similarly accelerate its incorporation into index funds managing trillions of dollars in assets. “Forced buying into an index does not reflect genuine investor conviction; it manufactures artificial demand,” stated Tengler.

Concerns arise regarding the potential impact that interest in the trending issues of tomorrow may have on the most sought-after stocks of today. “There’s trillions of dollars of private capital that’s slated to come public over the next few years, which is great,” said Savita Subramanian. However, a surge in new AI stocks “potentially squeezes out and creates more competition” for established AI ventures. Whether the technology sector can accommodate mega-IPOs seamlessly is likely contingent upon the degree of investor appetite for exposure to artificial intelligence. So far this year, demand has been insatiable. Memory and semiconductor stocks have experienced a significant surge, and the remarkable introduction of AI chipmaker Cerebras earlier this month has not dampened their momentum. Despite a decline in Cerebras’ stock since its initial trading day, it remains robustly positioned, trading 27% above its IPO price.