The possibility of a plunge is slim. Of course, if the previous increase is too large, the risk is even greater.

After the introduction of stock index futures, the underperforming stocks in the stock market have been abandoned by people. On the contrary, blue-chip stocks have also begun to be favored by medium and long-term investments. The fluctuation of the stock market has also been relatively stable. Short-term or ultra-short-term speculators are also difficult to operate to earn the difference profit.