美股三大指数小幅低开，诺和诺德大涨超9%

Group 1 - The core point of the article highlights that the U.S. stock market opened slightly lower, with the Nasdaq down 0.09%, the S&P 500 down 0.07%, and the Dow Jones down 0.13% [1] - Novo Nordisk's stock surged over 9% following the FDA approval of its oral Wegovy medication, which is set to launch in January next year [1] - The stock of AmerisourceBergen rose nearly 2% after several major banks raised their target prices, with Wells Fargo increasing its target to $135 [1]