The price of copycat stocks can fall sharply or rise sharply. The prerequisite is that you must have enough basic investment research skills to avoid buying on the first day and running away on the second day. Of course, luck is also needed. Don't buy copycat stocks even if you have bad luck. At the same time, you must have enough psychological quality, do a good job of investment research, make your own judgment, don't listen to other people's nonsense, take when you should, and leave when you should leave. Your thoughts and actions must be independent. Otherwise, number one will buy, number two will cut losses and leave, and number three you will watch what you sold yesterday take off.