Group 1 - The S&P 500 index reached a record high, closing at 6501.86 points, with the Nasdaq Composite rising to 21705.16 points and the Dow Jones Industrial Average increasing by 71.67 points to 45636.90 points [1][2] - The strong performance of the market was supported by macroeconomic data, including a revised annualized GDP growth rate of 3.3% for the second quarter, which exceeded previous estimates and market expectations [4] Group 2 - Nvidia reported second-quarter revenue of $46.7 billion, a 56% year-over-year increase, surpassing market expectations of $46.058 billion, with net profit reaching $26.422 billion [3][6] - Despite the strong overall performance, Nvidia's data center revenue slightly missed expectations, leading to cautious investor sentiment, although analysts remain optimistic about future growth [3][6] - Nvidia's CEO projected that the market for AI chips will expand to trillions of dollars over the next five years, indicating a significant ongoing industrial revolution [6] Group 3 - The positive earnings report from Nvidia had a ripple effect on the semiconductor sector, with stocks like Broadcom and Micron Technology rising by 2.8% and 3.6% respectively [4] - Snowflake, another AI-related software company, also reported earnings that exceeded market expectations, resulting in a 20% surge in its stock price, further boosting investor confidence in the AI sector [4]