focused firms Astera, CoreWeave in quarterly reshuffle
Nasdaq said Cognizant Technology Solutions will be removed from the Nasdaq-100 effective June 22, ending more than two decades in the index, per its June 2026 quarterly rebalance announcement. Charter Communications, Insmed, Verisk Analytics and Zscaler also exit. Astera Labs, CoreWeave, Nebius Group, Rocket Lab and Teradyne replace them. Cognizant shares fell about 38% in six months, closing at $52.17 on June 12.
Index deletion can drive passive selling/flows and raise near-term liquidity/benchmark-tracking pressure.
Cognizant will be removed from the Nasdaq-100 effective June 22 after more than two decades, following a ~38% stock drop over six months.
Potential short-term downside/volatility into the June 22 effective date due to index-fund rebalancing flows.
Background
Nasdaq-100 quarterly rebalance announced June 11; changes take effect before market open June 22, alongside updated “fast entry” index rules effective May 2026.
Why it matters
Traders can anticipate benchmark-tracking rebalancing flows: deletions (CTSH, CHTR, INSM, VRSN, Z) may face mechanical selling; additions (ASTS, RGTI, NEBI, RKLB, TER) may see mechanical buying. The article also notes Cognizant’s recent ~38% six-month decline, which may interact with flow-driven selling.
Market relevance
This is a benchmark composition change with a specific effective date, creating near-term, flow-driven trading opportunities and volatility around June 22.
Market effects
Reinforces read-across that AI infrastructure/semiconductor-linked equities are gaining benchmark representation versus traditional IT/software services.
Primarily US-listed index flow effects; may spill into US-listed AI/semis peer group via relative-performance positioning.
Could modestly influence global AI/semis sentiment through benchmark-driven demand, but the mechanism is US index rebalancing.
Alternative perspectives
Index membership changes may be largely mechanical; fundamentals and broader market tape could dominate price action, limiting follow-through beyond the rebalance window.
Liquidity/derivatives hedging around index changes can create short-lived dislocations; also, the article doesn’t quantify expected passive flow size, so actual impact could be smaller than implied.
Key entities
- index_rebalanceNasdaq-100 quarterly rebalance
June 11 announcement; effective before market open June 22.
- companyCognizant Technology Solutions
Removed from Nasdaq-100 effective June 22; stock down ~38% over six months per article.
- companyAstera Labs
Added to Nasdaq-100 effective June 22.
- companyCoreWeave
Added to Nasdaq-100 effective June 22.
