History Says This Is What Happens When a Stock Joins the Nasdaq-100

SpaceX joins the Nasdaq-100 Index on July 7, 2026, following a fast-track inclusion rule for large IPOs. Historically, stocks added to the index gain about 1% around announcement and inclusion, with 3.8% average gains over 90 days and 12% over a year. However, SpaceX's small initial weight of ~0.7% in the index limits the immediate impact, despite generating over $5 billion in forced buying from major ETFs tracking the index.