美股三大指数高开，阿里巴巴涨超5%

Group 1 - The final adjusted annualized GDP growth rate for the US in Q3 is 4.4%, slightly exceeding expectations [1] - US stock indices opened higher, with the Nasdaq up 0.93%, S&P 500 up 0.64%, and Dow Jones up 0.56% [1] Group 2 - Alibaba's shares rose over 5% following news that its chip subsidiary, Pingtouge, plans to go public [1] - Meta's stock increased by 2.6%, as the company will start advertising on its social platform Threads for all users globally next week [1] - Apple's shares rose nearly 1%, with reports indicating the launch of a new AI version of Siri in June, marking the company's first AI chatbot [1]