On 6 November 2025, MSCI Inc. released its November index review showing 69 additions and 64 deletions in the MSCI ACWI standard index, and extensive changes across small-cap and frontier-market segments. The implementation date is set for the close of 24 November. The rebalancing may trigger portfolio shifts in passive funds and ETFs as investors adjust holdings prior to the change, potentially increasing volatility in affected securities. It also reflects evolving market structure amid accessibility and liquidity trends.