[U.S. stocks open: Nasdaq continues to hit new highs, S&P 500 index approaches previous high, NVIDIA rises more than 1% and continues to hit new highs] On October 6, the three major U.S. stock indexes collectively opened higher, with the Dow Jones Index rising 0.36%, the S&P 500 Index rising 0.47%, and the Nasdaq Composite Index rising 0.57%. Among them, the Nasdaq continued to hit new highs, and the S&P 500 index approached its previous high. Nvidia rose more than 1% and continued to hit new highs. Constellation Energy rose more than 9% on news that the company had reached an 890-megawatt nuclear power capacity agreement with Google. Option Care rose more than 32% as McKesson and CD&R were reported to be close to a $5 billion acquisition. AMD rose more than 2% after the company's CEO said the company plans to significantly increase supply in 2027.