MSCI Shares Tumble 3.92% Amid $890M Trading Surge to 116th in U.S. Volume Ranking

MSCI Inc. , ranking it 116th among U.S. equities. The index provider's shares faced renewed scrutiny as market participants digested structural shifts in global equity benchmarks and regulatory developments.

Analysts noted that the decline coincided with ongoing debates over methodology adjustments in , which have historically influenced institutional investor behavior. While no direct earnings or guidance updates were released, the selloff aligned with broader observed in late-summer trading cycles.

For purposes, the following parameters require clarification: 1) Universe scope (S&P 500 vs. global equities), 2) Execution timing (close-to-close vs. open-to-close), 3) (equal vs. cap-weighted). , 2022, to present.

Implementation details will directly affect the reliability of the backtest results. Participants are advised to confirm their preferred methodology before proceeding with the analysis.