Nasdaq announced on March 30 2026 that it has finalized a new methodology for the Nasdaq‑100 Index, with the changes taking effect on May 1 2026. The update follows a public consultation that ran from February 2 to February 27, 2026.
The most headline‑grabbing changes are the “Fast Entry” rule, which shortens the waiting period for newly listed large‑cap companies to 15 trading days, and the removal of the 10 % float requirement. Together, these adjustments allow high‑valuation companies that remain private longer to be reflected in the index sooner and prevent the exclusion of large firms that have a low public float.
Beyond the headline items, Nasdaq is replacing its 10 Basis Point Rule with a quarterly, rank‑based process that removes securities ranked outside the top 125. It is also expanding the market‑capitalization calculation to include a company’s entire capitalization—both listed and unlisted shares—so that the index better represents the full value of a firm’s equity base.
The methodology shift will affect the composition of index‑linked products. ETFs that track the Nasdaq‑100, such as the Invesco QQQ Trust (QQQ) and the Invesco NASDAQ 100 ETF (QQQM), will need to adjust their rebalancing schedules and potentially their holdings to accommodate the faster entry of new constituents and the altered float criteria.
Nasdaq’s rationale is to keep the index timely and representative of the market it measures. By capturing mega‑cap companies earlier and accounting for unlisted shares, the index aims to remain a relevant benchmark for growth and technology sectors, enhance liquidity for constituents, and maintain attractiveness for companies considering an IPO on the Nasdaq exchange. The changes also align Nasdaq with a broader industry trend, as other major indices are reviewing their entry rules to adapt to the evolving IPO landscape.
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