AllianceBernstein’s John H. Fogarty and Matthew Whitehurst examine how the Russell 1000 Growth rebalance has reshaped concentration risk for US growth investors.
- Magnificent Seven exposure fell from 52.8% to 43.1%, while semiconductors now represent roughly one-third of the index, up from 24%.
- Semiconductor stocks now contribute nearly half of index beta, increasing sensitivity to market swings.
- AB argues that shifting concentration reinforces the importance of broader diversification as AI-related leadership evolves.
Explore the full report to assess how changing index composition could affect portfolio risk and positioning.
Continue reading this article?
Register for free and get access to Investment Officer International:
- Exclusive for professional investors
- Cancel anytime
- Unlimited access: web, app and newsletters
Registration takes less than 1 minute.
No payment details required
Register for free and get access to Investment Officer Luxembourg:
- Exclusive for professional investors
- Cancel anytime
- Unlimited access: web, app and newsletters
Registration takes less than 1 minute.
No payment details required
