SpaceX, OpenAI, and Anthropic Eye Public Debuts: The year 2026 is officially positioned to become the most significant milestone in the history of the American capital markets. Wall Street is currently bracing for a monumental shift as the three most valuable private technology companies in the United States—SpaceX, OpenAI, and Anthropic—prepare for their long-awaited initial public offerings. Investors are anticipating a combined market valuation approaching $3 trillion.