Market risk comes from the extreme unilateral rise or fall of the market (investors in the opposite direction are prone to short positions). Once there is a daily limit or a daily limit, it is difficult for investors in the opposite direction to quit in time, so the system you mentioned to amplify the ups and downs is set up to prevent risks.

It does not exceed 5% of the settlement price of the previous trading day, that is, the fluctuation range is 5%. The benchmark price is calculated according to the settlement price of the previous trading day, which is somewhat different from the price increase and decrease calculated by the closing price of the stock.