Market Overview - The stock market experienced significant volatility, with the Dow Jones reaching a record high while the S&P 500 and Nasdaq briefly fell below their 50-day moving averages [1][2] - The market closed mixed, with the Dow Jones index lagging behind other indices [2] Company Focus - Nvidia's upcoming earnings report is a focal point for investors, especially amid a backdrop of fluctuating AI stock performance [1][4] - Wall Street is closely monitoring Nvidia, particularly as AI-related stocks face selling pressure [4] Sector Insights - Oil refinery margins are improving, drawing attention to companies in the oil sector [4] - Eli Lilly is highlighted as a stock nearing buy points, indicating potential investment opportunities [4] - The AI sector is experiencing turbulence, with concerns about electrical grid issues potentially impacting the AI revolution [4]