Nvidia's remarkable stock rally has significantly influenced the S&P 500 index, reinforcing its position as a key player in the U.S. stock market. Over the past two years, Nvidia's shares have surged nearly $3 trillion, reshaping the dynamics of various equity indexes, including the S&P 500 
. This influence was particularly evident during recent market fluctuations, where Nvidia's performance helped stabilize the index amid broader economic concerns