携程美股盘前跌5%

Group 1 - The core point of the article is that Ctrip's stock fell by 5% in pre-market trading due to an investigation by the State Administration for Market Regulation regarding its alleged abuse of market dominance and monopolistic behavior [1] Group 2 - The investigation indicates increased regulatory scrutiny on companies in the travel and tourism sector, particularly those with significant market power [1] - The outcome of this investigation could have implications for Ctrip's business operations and market strategy moving forward [1] - The market's reaction reflects investor concerns about potential penalties or operational changes that may arise from the investigation [1]