The rapid expansion of the market value of "Nvidias" has forced index companies to consider weight restriction rules. In the first eight months of 2024, the stock price of American technology company Nvidia rose nearly 150%, and its total market value reached an astonishing $3 trillion mark. With the AI boom constantly widening the "wealth gap" in the stock market, index suppliers on Wall Street are increasingly feeling headaches: facing the increasingly imbalanced US market, rare interventions have also emerged.