SpaceX Nasdaq 100 Weight to Rise to 2.82% in Quarterly Rebalance

Key Facts

1SpaceX's weight in the Nasdaq 100 index is set to increase to 2.82% during the quarterly rebalance.

In a move reflecting the shifting dynamics within the technology sector and the continued growth of major players, SpaceX's influence within the Nasdaq 100 is set to expand. According to reports, the company's weight in the index will rise to 2.82% as part of a quarterly rebalancing procedure. This adjustment by Nasdaq is designed to ensure the index accurately reflects updated market valuations and share counts across its constituent companies.

Operationally, index reweighting typically triggers mandatory buying from passive investment funds that track the Nasdaq 100, potentially providing upward price pressure on the affected shares. Per market data, SPCX shares closed at $152.71 on September 18, 2026, while NDAQ shares closed at $93.54 on the same date. This technical adjustment is a routine procedure intended to maintain index integrity relative to market capitalization and liquidity standards.

Traders should watch SPCX price levels following its close at $152.71 (close September 18, 2026), noting the stock reached a day high of $156.60 during that session. With no major upcoming catalysts directly impacting the tech sector in the immediate economic calendar, passive fund flows remain the primary driver to monitor. NDAQ stood at $93.54 (close September 18, 2026) as the market prepares for the implementation of these updated index weightings.