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Originally published in Stephen Dover’s LinkedIn Newsletter, Global Market Perspectives. Follow Stephen Dover on LinkedIn where he posts his thoughts and comments as well as his Global Market Perspectives newsletter.

The initial public offering (IPO) window is reopening, but the more important story is the scale of the private companies preparing to enter public markets. SpaceX could become the first major test, with OpenAI, Anthropic, Databricks, Stripe, and Anduril potentially creating a wave of new market capitalization large enough to reprice growth equities more broadly.

  • SpaceX is the bellwether. A SpaceX IPO would force investors to value a unique mix of orbital launch, Starlink broadband, defense-adjacent infrastructure, and long-duration opportunity. Demand for this IPO is unlikely to be the issue; the real test will be valuation, governance and how much capital intensity public investors are willing to absorb.
  • Artificial intelligence (AI) platforms are harder to underwrite. OpenAI and Anthropic would bring extraordinary growth and strategic importance to the market, but also meaningful uncertainty around compute costs, margin structure, capital needs and the timing of free cash flow.
  • Supply is the underappreciated risk. If several mega-cap IPOs come in the same window of time, they will compete for capital not only with each other, but also with existing publicly traded growth stocks. That could create rotation pressure across software, semiconductors, fintech, defense tech and AI beneficiaries.
  • Investment impact: We think this should be treated as a selective stock-picking opportunity, not a broad IPO trade. The best opportunities will likely be companies with category leadership, strong unit economics, and a clear path to profitability, while weaker deals could struggle quickly in the aftermarket.
  • Private valuations will be tested. Public markets will likely provide a real-time reset for late-stage private companies, especially those that raised capital at aggressive valuations during the prior cycle.
  • The return of the IPO? A healthy IPO market should improve exit activity, recycle capital back into venture and growth investing and support broader risk appetite, while a weak aftermarket could close the window quickly. IPOs provide an exit opportunity for private investors.