US large-cap stocks could decline in early 2027 as lockups expire on the mega IPOs of SpaceX, Anthropic and OpenAI, which may mark the AI cycle's top as insiders monetize. With SpaceX floating only 4.5% at IPO, post-lockup liquidity for the AI wave is about 3x the whole dot-com bubble's, or 50% higher adjusted for inflation. Absorbing it would require selling other S&P 500 stocks, with peak demand 3-6 months after the OpenAI and Anthropic IPOs. It may prove a leg down rather than the final peak. x.comÂ
