It is understood that when the net value of the graded fund B share falls below 0.25 yuan, it triggers the discount, which means that the net leverage of the graded fund B share on the day of discount is as high as 5 times or more. In the process of folding, the leverage of the net value of B shares of graded funds decreases continuously, and the trigger date of folding is often around 1.5 times. This also means that the unit net value of graded fund B share has the characteristics of "rising more slowly and falling faster".

In addition, when grade B is discounted, the higher the premium rate, the greater the loss of the holder. Because the loss is the premium difference between the market transaction price and the net value. The closer to the discount, the heavier the selling price of Grade B, so it generally falls quickly after opening and is difficult to sell.