For fund companies, it is to adjust the share of investors to meet the requirements. The increase is usually a share upgrade, or an activity reward, or a share increase. And the decline rarely happens, usually because you bought the wrong stock. The starting point of the B-type money fund is 5 million yuan. If you don't buy enough money, you must drop it to Class A, and then merge the shares. In short, there are many situations, but in general, there is no difference between good and bad, and they are all neutral events.

First, protect the Class A share with the characteristics of stable and fixed expected annualized income, and prevent the Class A share principal and expected annualized income from being distributed first and then the Class B share according to the agreed expected annualized income distribution mechanism under extreme market conditions. Then, if the net value of B returns to zero, there will be extreme losses in Class A shares, and the guarantee of the principal and expected annualized income of Class A shares will also be lost.

The second is to constrain the leverage ratio of B-side, because once the net value of B-side share is very low (such as 0.25), the leverage ratio of B-side share will be very large, and the smaller the net value of B-side, the greater the leverage ratio, even dozens of times. Perhaps the result of speculative trading is great volatility, even choosing between the daily limit and the daily limit, which is not conducive to market investment and has great speculative risks.