As for the hot topics in the capital market, we can always see “investor questions” on the interactive platform. After the listed company replies, the stock price rises sharply, but there are also cases of “face-beating” in the follow-up. The roller coaster movement of Simei Media’s stock price is the most recent example. Similar timely “investor questions” often become the trigger for abnormal stock price fluctuations, investors grasp the right time node, should be alert to investors with special purposes fixed-point questions, the company fixed-point answer possibility. The interactive platform shortens the distance between shareholders and listed companies, and adds a channel for communication, which can enable listed companies to answer the doubts of shareholders to the greatest extent. However, the stock price fluctuation caused by investor Q & A and company reply on interactive platform is common, which needs to attract the focus of supervision level.