美股开盘，三大股指低开，道指跌0.2%，纳指跌0.49%，标普500指数跌0.37%，谷歌涨超3%

Core Viewpoint - The U.S. stock market opened lower on November 17, with the Dow Jones down 0.2%, Nasdaq down 0.49%, and S&P 500 down 0.37% [1] Group 1: Company Performance - Google saw a rise of over 3% as Berkshire Hathaway, led by Warren Buffett, purchased 17.85 million shares of Alphabet in the third quarter, making it the tenth largest holding in U.S. stocks [1] - Alibaba's stock increased nearly 2.5% following the public beta launch of its Qwen-based app, Qianwen, which aims to cover various life scenarios including office work, maps, health, and shopping [1]