道指开盘跌0.1%，标普500跌0.4%，纳指跌0.6%

Group 1 - Pinduoduo's stock fell by 1.4%, while Fortinet's stock dropped by 2.8% due to a government directive for domestic companies to cease using security software related to the US and Israel [1] - Wells Fargo's stock declined by 2.7% as net interest income (NII) impacted Q4 revenue, and layoffs pressured annual profits [1] - Rivian's stock decreased by 3.3% following a recall of over 19,000 electric vehicles in the US [1] Group 2 - Netflix's stock rose by 1.4% as the company considers a cash-only acquisition of Warner Bros. Discovery [1] - Trip.com Group's stock plummeted by 17.1% as market regulators launched an investigation into the travel website [1]