Nvidia’s upcoming second-quarter earnings report, due Wednesday after market close, according to Investor's Business Daily. With a market capitalization of about $4.4 trillion, Nvidia represents 8% of the S&P 500, making its results as market-moving as a key economic data release. Options pricing suggests traders expect Nvidia’s results to trigger the biggest post-earnings stock move in over a year, with the S&P 500 projected to swing about 0.9% on Thursday. Nvidia’s performance has also become a proxy for AI demand, moving not just fellow chipmakers but also energy firms, server makers, and software companies tied to the sector. The impact could be sharper now, as AI beneficiaries and the “Magnificent Seven” represent a larger share of the S&P 500 after big gains this year. Investor nerves remain high after a recent MIT survey showed little payoff from corporate AI investments, raising fresh questions about tech valuations.