Fast-Track Index Inclusion

Definition

NASDAQ's new May 2026 rules allow mega-cap companies to join the NASDAQ 100 after just 15 trading days, weighted by total market cap rather than available float. This transforms index fund participation from a deliberate choice into a legally mandated automatic purchase at whatever price exists during the supply-constrained early trading period. The S&P 500 and FTSE Russell are considering similar rule changes, affecting over $30 trillion in indexed assets.

Key Discussions