Tom Lee: Trillions in SpaceX, OpenAI, and Anthropic IPO Supply Won't Sink the S&P 500

Fundstrat's Tom Lee is pushing back on fears that a historic wave of mega-IPOs could destabilize public markets. SpaceX, OpenAI, and Anthropic are all reportedly eyeing U.S. listings, and Lee estimates the combined post-lockup supply could equal 5% to 6% of the S&P 500's total market cap — a scale…