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OpenAI, Anthropic and SpaceX IPOs loom, testing U.S. market’s ability to absorb supply

SpaceX and Anthropic have begun IPO procedures and OpenAI may follow, raising questions about whether U.S. markets can absorb new listings from large private tech firms. Market focus is on shifts in supply and demand after listings, including index inclusion and lock-up expiries that could release large volumes of shares. Estimates suggest up to $4 trillion in market value could be added if all three list.