Space X + Open Ai + Anthropic, the three major capital-sucking machines, are all going for IPOs in June. What impact will this have on U.S. stocks?

SpaceX, OpenAI, and Anthropic, three "super behemoths" with a combined valuation approaching $4 trillion, have collectively initiated their IPO processes, which is indeed being called an epic "capital drain" by Wall Street.

This historically rare wave of concentrated listings is far from simply adding a few more stocks to the U.S. market; it is triggering a massive earthquake in liquidity and index structure.
 

We can first take a look at the scale of these three "drains" based on currently disclosed data:
 

Company ☞ Estimated Market Cap ☞ Valuation ☞ Core Focus ☞ Market Focus
 

SpaceX ~$1.75T - $2.0T Commercial Aerospace / Starlink Network The largest IPO in history, prompting major exchange rule changes.OpenAI >$850B ＞ Generative AI Leader ＞ Ultimate test of compute monetization capability and business model.
Anthropic ~$1.0T ＞ Generative AI (Claude) ＞ Extremely high secondary market premium, recently achieved quarterly profit.
 

At its core, this collective IPO will profoundly impact the U.S. stock market in the following four dimensions:

1. An "Epic Blood Transfusion" of Existing Capital: Cutting the Flesh of the Old Guard to Feed the Favorites

The total fundraising scale of these three companies is expected to exceed $200 billion. Against the backdrop of the overall U.S. stock market being at high levels, there isn't that much "incremental capital" appearing out of thin air, meaning their listings will inevitably violently strain existing liquidity.

JPMorgan estimates: Taking SpaceX alone as an example, if it gradually releases 50% of its float in the future, passive funds will be forced to sell up to $95 billion worth of stock from the existing eight Wall Street tech giants (the Magnificent Seven + Broadcom) to make room for it in the indices. In other words, existing established tech stocks will face significant passive selling pressure in the short term.

2. Passive Funds Forced to "Rapidly Take Over," Exacerbating Market Volatility

To compete for the listing targets of these century-defining giants, exchanges like Nasdaq have recently relaxed their "fast inclusion" rules.

For example, new rules allow newly listed stocks to be directly included in the Nasdaq-100 index just 15 days after their IPO, and grant them an index weighting equivalent to three times the value of their float.
This creates two sides of the same coin:

• In the short term: Trillions in passive ETF funds tracking these core indices (like QQQ, SPY) must, with no choice, forcibly buy these three companies at high prices in the early listing phase, further pushing up the new stock prices.
• The cost is: Once these companies experience severe volatility in their early listing phase due to high valuations, they will directly hijack the entire market index, causing the overall volatility amplitude of U.S. stocks to increase significantly.

3. Small-Cap Stocks and Non-Tech Sectors Face a "Blood Loss Shock"

• Index space is limited. To squeeze these multi-trillion-dollar monsters into the S&P 500 or Nasdaq-100, benchmark indices will inevitably have to remove a large number of lower-ranked small and mid-cap constituents. This will cause small-cap stocks and non-tech blue-chip sectors to suffer a severe liquidity "crowding-out effect," further exacerbating market polarization.

4. Warning from Historical Patterns: The "Brake Pads" for the AI Tech Bull Market

• Historically, super giants conducting sensational listings in clusters often coincide with sensitive windows where market sentiment peaks and capital concentration reaches its extreme. Examples include the cluster listings of industrial and railway giants before the 1929 Great Depression.
  The market is already engaged in ongoing debate about "AI investment returns" and the "AI bubble." The collective capital drain by these three giants in June is highly likely to break the past one-sided upward trend of U.S. stocks, forcing the market into a brutal round of valuation reassessment and liquidity correction.

  ——From Google Gemini