S&P 500 Inclusion Unlikely to Boost SpaceX, OpenAI, Anthropic

Inclusion of SpaceX, OpenAI, and Anthropic in the S&P 500 will not materially impact their price trajectories or investor outcomes. Index inclusion effects have become smaller and more transitory, with recent studies showing little long-term impact. S&P's one-year trading history requirement ensures orderly transition rather than investor protection.