SpaceX to Reach 2.82% Nasdaq 100 Weight on Monday

September 19, 2026 at 07:17 PM2 min

This digest was compiled by AI from multiple sources — links to the originals are below.

SpaceX will make up 2.82% of the Nasdaq 100 when the index's quarterly rebalance takes effect Monday, according to data obtained by Bloomberg. The final figure, calculated using Friday's closing price, matches a provisional weighting previously published by the index provider. The expected increase would begin to close an unusual gap between SpaceX's market value and its index weighting.

Key Facts

SpaceX will make up 2.82% of the Nasdaq 100 when the quarterly rebalance takes effect Monday, up from about 1.28% currently.
SpaceX is the seventh-largest company in the Nasdaq 100 by market value, at more than $2 trillion.
More than 200 investment products track the Nasdaq 100, with over $800 billion in assets under management globally.
The Invesco QQQ Trust Series 1, known as QQQ, manages $482 billion and is one of the largest ETFs tracking the Nasdaq 100.

Rebalance Mechanics

The final weighting was calculated using Friday's closing price and matches a provisional figure previously published by the index provider. SpaceX's current weighting of about 1.28% dates to its addition to the index in July, when most of its shares were still locked up and unavailable for public trading. Nasdaq changed its rules to let newly listed large-cap companies enter the index sooner and dropped a requirement that at least 10% of their shares be publicly tradable. The Nasdaq 100 tracks the largest non-financial companies listed on the Nasdaq stock market, with no minimum market capitalization for inclusion. Companies must have average daily trading volume of at least 200,000 shares and meet other requirements.

Market Impact

A bigger weighting matters because passive funds tied to the benchmark must adjust their holdings accordingly. Such funds include the $482 billion Invesco QQQ Trust Series 1, known as QQQ, one of the largest ETFs. More than 200 investment products track the Nasdaq 100, with over $800 billion in assets under management globally. Edward Yoon at Macquarie says recent rebalancing events have taken on greater significance amid a host of forces driving markets. Yoon cited geopolitical developments involving Iran, ongoing inflation concerns, renewed tariff uncertainty, moves in interest rates and continued volatility across AI and tech stocks as contributing factors.