The summer of 2026 has brought the most significant wave of mega-cap IPOs since the dot-com era, with SpaceX's public debut leading offerings from OpenAI, Anthropic, Stripe, and Databricks. This surge represents both an opportunity to access previously private high-growth companies and a potential minefield of inflated valuations driven more by narrative than fundamentals. SpaceX's IPO shattered records, validating years of private market speculation. OpenAI has filed confidential IPO paperwork with expectations of a valuation exceeding $100 billion, while Anthropic is preparing its own offering. Stripe has signaled readiness to go public, and Databricks rounds out a cohort representing trillions in private market value. The Federal Reserve's monetary policy trajectory under new Chair Kevin Warsh has provided enough clarity for companies to plan their debuts. As second-quarter earnings season unfolds, these newly public companies will face their first major test of justifying lofty valuations in public market scrutiny.