SpaceX Weighting in Nasdaq-100 Index Doubles to 2.82% in Rebalance

Key Facts

1SpaceX’s weighting in the Nasdaq-100 index more than doubled to 2.82% as part of the quarterly rebalance.

In a move reflecting the growing significance of the space sector in financial markets, SpaceX's weighting in the Nasdaq-100 index has seen a substantial increase. According to reports, the company's weight more than doubled to reach 2.82% as part of the scheduled quarterly index rebalancing. These adjustments are designed to align the index with current market capitalizations and other constituent criteria.

This weighting increase typically triggers buying pressure from passive investment vehicles, as ETFs tracking the index are required to adjust their holdings to match the new allocations. Per market data, NDAQ (Nasdaq Inc.) was priced at $93.54 at close on September 18, 2026, while SPCX stood at $152.71 on the same date.

Investors should monitor liquidity levels as these changes take effect, with SPCX having closed at $152.71 on September 18, 2026, after reaching a daily high of $156.6. In the absence of immediate upcoming economic catalysts related to the index in the calendar, the primary focus remains on the ETF flows resulting from the rebalance.