Rocket Lab Corporation (NASDAQ:RKLB) shares are in the spotlight Monday as the company officially joins the Nasdaq-100 Index today — a milestone that forces every passive fund and ETF tracking the index to own the stock starting at this morning's open.

The Nasdaq-100 Inclusion Rocket Lab is one of five companies joining the Nasdaq-100 today alongside Astera Labs, CoreWeave, Nebius Group and Teradyne, replacing Charter Communications, Cognizant, Insmed, Verisk Analytics and Zscaler.

The addition means every fund and ETF tracking the index — including the QQQ, which manages over $300 billion in assets — must own Rocket Lab shares as of today's open.

Index inclusion typically generates sustained buying pressure as passive vehicles rebalance to reflect the new composition.

The SpaceX Context The inclusion arrives against a complicated backdrop.