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Wall Street Preparing Cash Reserves Ahead of Tech Stock Super IPO Wave

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May 28. As high-profile tech unicorns SpaceX, OpenAI, and Anthropic advance plans for their U.S. initial public offerings (IPOs), major Wall Street institutions are proactively adjusting their holdings to build up cash reserves. John Flood, Managing Director of Global Banking and Markets at Goldman Sachs, notes that historically, stock mutual funds have boosted cash reserves in advance of the four largest IPOs—and right now, several large funds are following that playbook once again. Some passive index funds are even considering trimming their existing stakes in big tech names to make room for upcoming index additions. SpaceX’s IPO is projected to value the company between $1.5 trillion and $1.75 trillion, while OpenAI and Anthropic are each worth roughly $1 trillion apiece. The trio’s consecutive listings are set to reshape the weighting landscape of major U.S. stock indexes. Index providers are rushing to update rules to accommodate this shift. FTSE Russell has rolled out a new policy allowing newly listed companies to join Russell indexes after just five days of trading, provided they meet the free-float market cap threshold—a move widely seen as nearly tailor-made for SpaceX. Nasdaq announced a fast-track inclusion process for new stocks back in March, and S&P Dow Jones Indices is also pushing similar changes, warning that sticking to old rules could hurt the index’s effectiveness as a benchmark. Once these stocks are added to major indexes, large passive funds will be required to allocate capital to them, making them potentially the largest, most stable source of demand for these blockbuster IPOs. However, market watchers are also raising red flags: passive funds could be forced to buy shares at steep premiums, taking on outsized risk given the high volatility of newly listed stocks during their early trading phase.
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