SpaceX Joins the Nasdaq-100. What the Fast-Track Addition Means for the Stock.

SpaceX trading on Tuesday won’t have much to do with space or AI fundamentals. Elon Musk’s AI and space company is now in the one of the best-known large-cap growth indexes that tracks the largest nonfinancial companies listed on Nasdaq.

Being fast-tracked into the index reflects just how important privately held frontier AI companies, including OpenAI, Anthropic, and SpaceX before its June IPO, have become to the entire stock market.