美股三大指数高开，英伟达涨超1%

Group 1 - The three major U.S. stock indices opened higher, with the Nasdaq up 0.37%, the S&P 500 up 0.46%, and the Dow Jones up 0.69% [1] - Nvidia's stock rose over 1% as CEO Jensen Huang raised the revenue forecast for its 2027 computing chip to $1 trillion [1] - Micron Technology's stock increased by over 2%, with its HBM4 production line having commenced mass production and shipping in the first quarter, receiving a price target increase to $525 from RBC [1] - Uber's stock surged over 4% as the company plans to launch a global fleet of autonomous vehicles powered by Nvidia's Level 4 software in the first half of next year [1]