港铁公司跌超5%

Group 1 - The core viewpoint of the article indicates that MTR Corporation (00066.HK) experienced a significant decline in its stock price, dropping over 5% [1] - As of the report, the stock price was at 32.8 HKD, reflecting a decrease of 5.2% [1] - The trading volume for MTR Corporation reached 82.9137 million HKD [1]