Many people are always hoping for a crash in tech stocks, mostly because they have missed out. If you truly understand the logic of current tech, you won't have random thoughts. The market has chosen the main theme and leading stocks for you. If you don't participate, but instead hope the main theme crashes so that rotation can bring gains to your stocks, this kind of thinking makes it hard to make money. Stand within the cycle, not fantasize about the cycle. As a side note, even if you catch the last baton of tech, does that mean the stock will hit the limit down right at the opening and you can't sell?